This is a transcript of Lex Fridman Podcast #479 with Dave Plummer.
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Table of Contents
Here are the loose “chapters” in the conversation.
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Click link to jump approximately to that part in the transcript:
- 0:00 – Introduction
- 1:22 – First computer
- 7:00 – Dropping out of high-school
- 14:41 – Joining Microsoft
- 16:53 – MS-DOS
- 20:05 – Windows 95
- 26:52 – The man behind Windows
- 31:48 – Debugging
- 37:05 – Task Manager
- 42:14 – 3D Pinball: Space Cadet
- 47:13 – Start menu and taskbar
- 58:12 – Blue Screen of Death
- 1:00:21 – Best programmers
- 1:08:22 – Scariest time of Dave’s life
- 1:15:50 – Best Windows version
- 1:17:40 – Slot machines
- 1:21:23 – Autism and ADHD
- 1:40:43 – Fastest programming language
- 1:44:48 – Future of programming
Introduction
Lex Fridman
The following is a conversation with Dave Plummer, programmer and an old-school Microsoft software engineer who helped work on Windows 95, NT, and XP, building a lot of incredible tools, some of which have been continuously used by hundreds of millions of people, like the famed Windows Task Manager. Yes, the Windows Task Manager, and the zip/unzip compression support in Windows. He also ported the code for Space Cadet Pinball, also known as 3D Pinball, to Windows. Today, he’s loved by many programmers and engineers for his amazing YouTube channel called Dave’s Garage. You should definitely go check it out.
The following is a conversation with Dave Plummer, programmer and an old-school Microsoft software engineer who helped work on Windows 95, NT, and XP, building a lot of incredible tools, some of which have been continuously used by hundreds of millions of people, like the famed Windows Task Manager. Yes, the Windows Task Manager, and the zip/unzip compression support in Windows. He also ported the code for Space Cadet Pinball, also known as 3D Pinball, to Windows. Today, he’s loved by many programmers and engineers for his amazing YouTube channel called Dave’s Garage. You should definitely go check it out.
Lex Fridman
Also, he wrote a book on autism, and about his life story, called Secrets of the Autistic Millionaire, where he gives really interesting insights about how to navigate relationships, career, and day-to-day life with autism. All this taken together, this was a super fun conversation about the history and future of programming, computing, technology, and just building cool stuff in the proverbial garage. This is the Lex Fridman Podcast. To support it, please check out our sponsors in the description, and now, dear friends, here’s Dave Plummer.
Also, he wrote a book on autism, and about his life story, called Secrets of the Autistic Millionaire, where he gives really interesting insights about how to navigate relationships, career, and day-to-day life with autism. All this taken together, this was a super fun conversation about the history and future of programming, computing, technology, and just building cool stuff in the proverbial garage. This is the Lex Fridman Podcast. To support it, please check out our sponsors in the description, and now, dear friends, here’s Dave Plummer.
First computer
Lex Fridman
Tell me about your first computer. Do you remember?
Tell me about your first computer. Do you remember?
Dave Plummer
I do. I didn’t own my first computer for a long time, but the first computer I ever used was a TRS-80 Model 1, Level 1, 4K machine, and I rode my bike in fifth or sixth grade, so I was about 11, to the local RadioShack. They had the standard component stereo systems, everything else RadioShack had, but they had a stack of boxes that was labeled “computer.” So I was asking the people who worked there about it, and they said they just got it and they hadn’t set it up yet. I was rather precocious and I figured, “Well, I’ll set it up for you,” and they said, “Okay. Have a shot.”
I do. I didn’t own my first computer for a long time, but the first computer I ever used was a TRS-80 Model 1, Level 1, 4K machine, and I rode my bike in fifth or sixth grade, so I was about 11, to the local RadioShack. They had the standard component stereo systems, everything else RadioShack had, but they had a stack of boxes that was labeled “computer.” So I was asking the people who worked there about it, and they said they just got it and they hadn’t set it up yet. I was rather precocious and I figured, “Well, I’ll set it up for you,” and they said, “Okay. Have a shot.”
Lex Fridman
Did you know what you were doing?
Did you know what you were doing?
Dave Plummer
Absolutely not. I mean, it’s no worse than a component stereo. The only thing is that Tandy, in their infinite wisdom, used the same five-pin DIN connector for power, video, and I think cassette, so they were all identical, and if you plugged them in wrong, you’d blow it up. So I read the label and got it working and wound up playing with it and not knowing anything about computers. So I’m typing English commands into it and, you know, PRINT 2+2 works perfectly, yet more simple English that you enter into a basic Level 1 interpreter is not going to get you very far.
Absolutely not. I mean, it’s no worse than a component stereo. The only thing is that Tandy, in their infinite wisdom, used the same five-pin DIN connector for power, video, and I think cassette, so they were all identical, and if you plugged them in wrong, you’d blow it up. So I read the label and got it working and wound up playing with it and not knowing anything about computers. So I’m typing English commands into it and, you know, PRINT 2+2 works perfectly, yet more simple English that you enter into a basic Level 1 interpreter is not going to get you very far.
Lex Fridman
So you’re trying to talk to it in English?
So you’re trying to talk to it in English?
Dave Plummer
Didn’t know any better. And I still have an old foolscap that I wrote in sixth grade of a program that’s kind of illogically correct but has no chance of working on any interpreter that existed at the time, so it took me a while to figure out what was actually going on with them. But I rode my bike down there every Thursday and Saturday, and they were gracious to let me use the machine.
Didn’t know any better. And I still have an old foolscap that I wrote in sixth grade of a program that’s kind of illogically correct but has no chance of working on any interpreter that existed at the time, so it took me a while to figure out what was actually going on with them. But I rode my bike down there every Thursday and Saturday, and they were gracious to let me use the machine.
Lex Fridman
When was this?
When was this?
Dave Plummer
’79, ’80.
’79, ’80.
Lex Fridman
Okay. What was the state of the art of computing back then? So what are we talking about?
Okay. What was the state of the art of computing back then? So what are we talking about?
Dave Plummer
Well, the big three had come out. There was the TRS-80 Model 1, there was the PET 2001, and the Apple II came out roughly simultaneously.
Well, the big three had come out. There was the TRS-80 Model 1, there was the PET 2001, and the Apple II came out roughly simultaneously.
Lex Fridman
Apple II. Would you say that’s the greatest computer ever built?
Apple II. Would you say that’s the greatest computer ever built?
Dave Plummer
Probably in retrospect. Well, I would probably give that to the Commodore 64.
Probably in retrospect. Well, I would probably give that to the Commodore 64.
Lex Fridman
Yeah. You and I agree on this, that that was my first computer probably many years after it was released, but yeah, Commodore 64’s incredible. But yes, Apple II had a huge impact on the history of personal computers.
Yeah. You and I agree on this, that that was my first computer probably many years after it was released, but yeah, Commodore 64’s incredible. But yes, Apple II had a huge impact on the history of personal computers.
Dave Plummer
Right. It’s hard to gauge the long-term impact, but I think the 64 itself probably influenced more people, so that’s my reason for picking that one.
Right. It’s hard to gauge the long-term impact, but I think the 64 itself probably influenced more people, so that’s my reason for picking that one.
Lex Fridman
You think so?
You think so?
Dave Plummer
The sales were certainly higher.
The sales were certainly higher.
Lex Fridman
So Commodore 64 sold a lot?
So Commodore 64 sold a lot?
Dave Plummer
Yeah. I mean, the numbers are hard to believe. It depends which numbers you believe, but even the medium estimates were pretty high.
Yeah. I mean, the numbers are hard to believe. It depends which numbers you believe, but even the medium estimates were pretty high.
Lex Fridman
All right, cool. So you eventually graduated to the Commodore 64. Tell me about that machine. What did you do on the Commodore 64?
All right, cool. So you eventually graduated to the Commodore 64. Tell me about that machine. What did you do on the Commodore 64?
Dave Plummer
Well, the first thing I did was overheat the floppy drive on it, which was unfortunate because it wasn’t a warranty machine. My parents didn’t have a lot of money so we bought it from Computer House as opposed to one of the major retailers, which meant when it died, it had to go back to Germany or something to be fixed. So I was left with no floppy and so I had a cassette deck, which was the best you could do at the time, and so I was writing small things, and I had a machine language monitor that you could load from cassette. It didn’t have an assembler built in, but it had a disassembler, so you could enter the op codes in 6502 in hex, and if you were careful about planning, you’d be able to write some basic programs.
Well, the first thing I did was overheat the floppy drive on it, which was unfortunate because it wasn’t a warranty machine. My parents didn’t have a lot of money so we bought it from Computer House as opposed to one of the major retailers, which meant when it died, it had to go back to Germany or something to be fixed. So I was left with no floppy and so I had a cassette deck, which was the best you could do at the time, and so I was writing small things, and I had a machine language monitor that you could load from cassette. It didn’t have an assembler built in, but it had a disassembler, so you could enter the op codes in 6502 in hex, and if you were careful about planning, you’d be able to write some basic programs.
Dave Plummer
So that’s kind of how I learned, and the first thing I ever wrote on it was a clone of Galaga. Now, it’s a bad clone of Galaga, but it has the major enemies that attack over time, and it’s all written in hand-coded machine language, and you can’t relocate 6502, so if you need to add code in the middle, you need to manually sort of jump to somewhere else, do your work, jump back to where you were. It’s just hideous spaghetti code. But it all worked eventually, and I went to make a backup of it to preserve it for future scholars or whatever the hell I was doing. And I copied my blank floppy onto my data floppy. So that was my first experience with data management.
So that’s kind of how I learned, and the first thing I ever wrote on it was a clone of Galaga. Now, it’s a bad clone of Galaga, but it has the major enemies that attack over time, and it’s all written in hand-coded machine language, and you can’t relocate 6502, so if you need to add code in the middle, you need to manually sort of jump to somewhere else, do your work, jump back to where you were. It’s just hideous spaghetti code. But it all worked eventually, and I went to make a backup of it to preserve it for future scholars or whatever the hell I was doing. And I copied my blank floppy onto my data floppy. So that was my first experience with data management.
Lex Fridman
Oh, no.
Oh, no.
Dave Plummer
So I don’t have a copy of my first program anymore.
So I don’t have a copy of my first program anymore.
Lex Fridman
What was that feeling like? Do you remember, of, of just doing something if I may say so, like stupid, you know? Which is a part of the programming experience.
What was that feeling like? Do you remember, of, of just doing something if I may say so, like stupid, you know? Which is a part of the programming experience.
Dave Plummer
Yeah, there was a huge amount of guilt because, right, you destroyed several weeks- … of work and you know it was because you rushed- or you did something stupid or you made an unwise choice.
Yeah, there was a huge amount of guilt because, right, you destroyed several weeks- … of work and you know it was because you rushed- or you did something stupid or you made an unwise choice.
Lex Fridman
What can you tell me about the programming involved in that game?
What can you tell me about the programming involved in that game?
Dave Plummer
So it’s literally machine language.
So it’s literally machine language.
Lex Fridman
So machine… So it’s not-
So machine… So it’s not-
Dave Plummer
Yeah, 65 with-
Yeah, 65 with-
Lex Fridman
… even assembly.
… even assembly.
Dave Plummer
Not assembly yet because there was no assembler built in, so I should have written an assembler as my first task, but I wasn’t that clever.
Not assembly yet because there was no assembler built in, so I should have written an assembler as my first task, but I wasn’t that clever.
Lex Fridman
How hard is that to do?
How hard is that to do?
Dave Plummer
Trivial, and it’s one of those things that sticks, I think. You do it so many times. You know, if I give you a C issue, there are certain syntactic issues in C that you’re never going to forget and get wrong. And it’s just one of those.
Trivial, and it’s one of those things that sticks, I think. You do it so many times. You know, if I give you a C issue, there are certain syntactic issues in C that you’re never going to forget and get wrong. And it’s just one of those.
Lex Fridman
Like, what are the limitations of programming in machine code, as a programmer?
Like, what are the limitations of programming in machine code, as a programmer?
Dave Plummer
The biggest issue is you have to write completely sequentially because at least in that variant, 6502, you can’t add things later. You can only add things on the end. So it’s like programming a tape in a way.
The biggest issue is you have to write completely sequentially because at least in that variant, 6502, you can’t add things later. You can only add things on the end. So it’s like programming a tape in a way.
Lex Fridman
What was the most complicated thing you’ve built with machine language?
What was the most complicated thing you’ve built with machine language?
Dave Plummer
That game would be. I mean, in assembly language, I’ve done a fair bit of complicated stuff, but in actual machine language, I think that game would be the only thing I’ve actually-
That game would be. I mean, in assembly language, I’ve done a fair bit of complicated stuff, but in actual machine language, I think that game would be the only thing I’ve actually-
Lex Fridman
You literally built a game.
You literally built a game.
Dave Plummer
Not a great game, but it worked.
Not a great game, but it worked.
Lex Fridman
Okay, all right, and then you erased it?
Okay, all right, and then you erased it?
Dave Plummer
I did.
I did.
Lex Fridman
All right. When did you first fall in love with programming? When you figured out, like, this is a, this is something special.
All right. When did you first fall in love with programming? When you figured out, like, this is a, this is something special.
Dave Plummer
… I think there was two stages for me. I always knew immediately that I was fascinated with these machines, from the TRS-80 Model I. It’s all I wanted to do was ride my bike back there and have more time with it. And I did that, you know, to wear out my welcome as much as I could. And the other revelation came, I think about second or third year of university when I realized, “I love programming, but I have no idea what I’m going to do. Am I going to make the 12 flash on a VCR somewhere? Or am I going to go work on an operating system? I have abso- absolutely no idea what I’m going to do post-graduation. But I love what I do.” And so, I think that was a lot of consolation. It’s like, it doesn’t really matter what I’m doing at this point, ’cause I kind of love doing it, so…
… I think there was two stages for me. I always knew immediately that I was fascinated with these machines, from the TRS-80 Model I. It’s all I wanted to do was ride my bike back there and have more time with it. And I did that, you know, to wear out my welcome as much as I could. And the other revelation came, I think about second or third year of university when I realized, “I love programming, but I have no idea what I’m going to do. Am I going to make the 12 flash on a VCR somewhere? Or am I going to go work on an operating system? I have abso- absolutely no idea what I’m going to do post-graduation. But I love what I do.” And so, I think that was a lot of consolation. It’s like, it doesn’t really matter what I’m doing at this point, ’cause I kind of love doing it, so…
Lex Fridman
So, you’ll figure it out. As long as you’re following this kind of feeling that’s telling you-
So, you’ll figure it out. As long as you’re following this kind of feeling that’s telling you-
Dave Plummer
I knew I was in the right area, finally. Yeah.
I knew I was in the right area, finally. Yeah.
Dropping out of high-school
Lex Fridman
Yeah. All right. You dropped out of high school.
Yeah. All right. You dropped out of high school.
Dave Plummer
Yeah. Not the smartest move.
Yeah. Not the smartest move.
Lex Fridman
Okay. But you ended up going back to school and being very successful at school and, just in general, successful as a programmer, as a developer, as a creator of software. How were you able to find your way? Can you tell that journey of dropping out— …and then finding your way back?
Okay. But you ended up going back to school and being very successful at school and, just in general, successful as a programmer, as a developer, as a creator of software. How were you able to find your way? Can you tell that journey of dropping out— …and then finding your way back?
Dave Plummer
There’s no moment when I dropped out. You just go less and less and less until you realize it’s going to be embarrassing if I show up because I haven’t been there in a long time, and then pretty soon you’re just not going, and that’s how you drop out of high school. So, if you find yourself on that path, stop doing that. But that’s precisely what I did. And so now I’m not at school and I have to get a job, so I’m working at 7-Eleven and a paint warehouse and stuff like that. And 7-Eleven is actually kind of an interesting job because it’s a job I think they keep rotating for people that are smart enough to do the night shift with all the accounting and the administration and stuff they make the night shift do, but that have reasons personally that they need to work at 7-Eleven.
There’s no moment when I dropped out. You just go less and less and less until you realize it’s going to be embarrassing if I show up because I haven’t been there in a long time, and then pretty soon you’re just not going, and that’s how you drop out of high school. So, if you find yourself on that path, stop doing that. But that’s precisely what I did. And so now I’m not at school and I have to get a job, so I’m working at 7-Eleven and a paint warehouse and stuff like that. And 7-Eleven is actually kind of an interesting job because it’s a job I think they keep rotating for people that are smart enough to do the night shift with all the accounting and the administration and stuff they make the night shift do, but that have reasons personally that they need to work at 7-Eleven.
Dave Plummer
And I was one of those people because I had no high school diploma.
And I was one of those people because I had no high school diploma.
Lex Fridman
What are some memorable moments from that time at 7-Eleven? Or maybe what do you appreciate about the difficulty of that job?
What are some memorable moments from that time at 7-Eleven? Or maybe what do you appreciate about the difficulty of that job?
Dave Plummer
Probably the worst moment for me… I mean, I got held up at knife-point and stuff, and that’s all entertaining, but the worst… …The most… The suckiest part for me was doing the gas dips. We’ve got a long… It’s a, like a 15 or 20-foot wooden stick and it’s measured in gradients of inches and feet, and you drop it into the gasoline tanks and then you bring it up and you measure where the gasoline sits because there’s no electronic sensor. So, I’m doing that, and the first time I do it, I drop the pole and I re-grab it. Well, that’s about a thousand splinters of wood into your hands, and it’s 40 below out and that really sucked.
Probably the worst moment for me… I mean, I got held up at knife-point and stuff, and that’s all entertaining, but the worst… …The most… The suckiest part for me was doing the gas dips. We’ve got a long… It’s a, like a 15 or 20-foot wooden stick and it’s measured in gradients of inches and feet, and you drop it into the gasoline tanks and then you bring it up and you measure where the gasoline sits because there’s no electronic sensor. So, I’m doing that, and the first time I do it, I drop the pole and I re-grab it. Well, that’s about a thousand splinters of wood into your hands, and it’s 40 below out and that really sucked.
Lex Fridman
Oh, wow.
Oh, wow.
Dave Plummer
And I realized, “I don’t want to do this for a whole life.” I knew that, so…
And I realized, “I don’t want to do this for a whole life.” I knew that, so…
Lex Fridman
Okay. So you stand there frozen with splinters in your hand.
Okay. So you stand there frozen with splinters in your hand.
Dave Plummer
And at some point, I have a revelation about my life that next time I’m going to do it differently. And then how ludicrous that is hits me about three seconds later, right? And I think that was really the moment for me where I realized that I’ve got to do something different. And so even though I was 21, I went and I talked to the principal of my local high school and I was like, “Can you let me back in?” And he’s, “No, you’re too old and we don’t have room,” was his main reason. And I said, “Well, between now and then, somebody’s going to drop out. So, you’ll have room. So, let’s assume you have room. Can I come back?” And he was gracious and let me come back. And so I did the three or four classes that I needed.
And at some point, I have a revelation about my life that next time I’m going to do it differently. And then how ludicrous that is hits me about three seconds later, right? And I think that was really the moment for me where I realized that I’ve got to do something different. And so even though I was 21, I went and I talked to the principal of my local high school and I was like, “Can you let me back in?” And he’s, “No, you’re too old and we don’t have room,” was his main reason. And I said, “Well, between now and then, somebody’s going to drop out. So, you’ll have room. So, let’s assume you have room. Can I come back?” And he was gracious and let me come back. And so I did the three or four classes that I needed.
Lex Fridman
Yeah, just if you can linger on that, the slow dropping out. That’s a weird thing that you can do with your brain. You realize to yourself that you don’t have to do the thing that everybody else is doing, and that’s a dangerous realization because, like, you kind of have to be part of society to do certain things.
Yeah, just if you can linger on that, the slow dropping out. That’s a weird thing that you can do with your brain. You realize to yourself that you don’t have to do the thing that everybody else is doing, and that’s a dangerous realization because, like, you kind of have to be part of society to do certain things.
Dave Plummer
Right.
Right.
Lex Fridman
And if you realize you don’t have to do what everybody else is doing, you can either have an incredible life or a really difficult life.
And if you realize you don’t have to do what everybody else is doing, you can either have an incredible life or a really difficult life.
Dave Plummer
Well, the problem with that process is you’re making a much smaller decision. “I’m just not gonna go to class today.” And that’s all you’re deciding, but you do that enough times, you’re making a much bigger decision. And that’s the problem.
Well, the problem with that process is you’re making a much smaller decision. “I’m just not gonna go to class today.” And that’s all you’re deciding, but you do that enough times, you’re making a much bigger decision. And that’s the problem.
Lex Fridman
So it’s better to make… If you want to live life in a non-standard way, it’s better to make the big decision explicitly and then you can stop going. Don’t allow yourself to make the slip-ups, though.
So it’s better to make… If you want to live life in a non-standard way, it’s better to make the big decision explicitly and then you can stop going. Don’t allow yourself to make the slip-ups, though.
Dave Plummer
It’ll be made for you eventually.
It’ll be made for you eventually.
Lex Fridman
Okay. Well, you got back, and you eventually went to college and were very successful as a student, and you weren’t that good of a student before.
Okay. Well, you got back, and you eventually went to college and were very successful as a student, and you weren’t that good of a student before.
Dave Plummer
No, I was a terrible student in high school, and even my first semester of college, I still wasn’t taking it quite seriously because I got mercy passed in Geometry 90, which is like the makeup class for the Geometry 12th-grade class that I didn’t have. And that scared me because I realized by 1% or the grace of the professor that let me through, I just about ended my entire university career here. So, fortunately, those marks don’t count on your transcript because they’re remedial classes. So, I got kind of a fresh start the next semester and did it for real, and I did it for me, and that made all the difference.
No, I was a terrible student in high school, and even my first semester of college, I still wasn’t taking it quite seriously because I got mercy passed in Geometry 90, which is like the makeup class for the Geometry 12th-grade class that I didn’t have. And that scared me because I realized by 1% or the grace of the professor that let me through, I just about ended my entire university career here. So, fortunately, those marks don’t count on your transcript because they’re remedial classes. So, I got kind of a fresh start the next semester and did it for real, and I did it for me, and that made all the difference.
Lex Fridman
What can you speak to maybe by way of advice on how to be successful as a student?
What can you speak to maybe by way of advice on how to be successful as a student?
Dave Plummer
Well, ideally, there’s some aspect of school that you do enjoy, whether it’s art, whether it’s computer science, whether it’s shop class, whatever. So, go for those classes and just put up with and do the hard stuff because it’s way easier than having to do it later, and that’s easy to say when you’re 50-something. It’s harder to say when you’re 15-something, but— … it makes a lot of sense.
Well, ideally, there’s some aspect of school that you do enjoy, whether it’s art, whether it’s computer science, whether it’s shop class, whatever. So, go for those classes and just put up with and do the hard stuff because it’s way easier than having to do it later, and that’s easy to say when you’re 50-something. It’s harder to say when you’re 15-something, but— … it makes a lot of sense.
Lex Fridman
All right. What’s the story of you joining Microsoft? How did we get there from 7-Eleven to Microsoft?
All right. What’s the story of you joining Microsoft? How did we get there from 7-Eleven to Microsoft?
Dave Plummer
Yeah, it’s a big jump. So, I had gone back to school, and I think it was in my third year of university. I was working for the phone company for the summer as a summer job, and I’m doing conversions of their UBNet to TCP/IP and modern networking, which really amounts to swapping cards but then figuring out why their config.sys doesn’t allow Lotus to run anymore because it’s got 10K less than it used to, and it’s just a horrible time to be working in computers, but I was doing it. And at lunch, I’m sitting in the food court with the old and the bored, and I’m reading a book that I had bought called “Microsoft or Bill Gates and the Making of Microsoft Hard Drive,” I think is the title. And it’s a great book.
Yeah, it’s a big jump. So, I had gone back to school, and I think it was in my third year of university. I was working for the phone company for the summer as a summer job, and I’m doing conversions of their UBNet to TCP/IP and modern networking, which really amounts to swapping cards but then figuring out why their config.sys doesn’t allow Lotus to run anymore because it’s got 10K less than it used to, and it’s just a horrible time to be working in computers, but I was doing it. And at lunch, I’m sitting in the food court with the old and the bored, and I’m reading a book that I had bought called “Microsoft or Bill Gates and the Making of Microsoft Hard Drive,” I think is the title. And it’s a great book.
Dave Plummer
It’s just sort of a matter-of-fact history of how Microsoft came to be, what it’s like, how it operates, what the people are like there. And I’m reading this book, and I become really entranced by it and fascinated because it sounds like exactly the place that I want to be, but I’m in Saskatchewan, so what am I going to do about it? And what I wound up doing was, I had put myself through school with a program called HyperCache, which is a file system cache for the Amiga because the Amiga didn’t have any out of the box, and it had done reasonably well.
It’s just sort of a matter-of-fact history of how Microsoft came to be, what it’s like, how it operates, what the people are like there. And I’m reading this book, and I become really entranced by it and fascinated because it sounds like exactly the place that I want to be, but I’m in Saskatchewan, so what am I going to do about it? And what I wound up doing was, I had put myself through school with a program called HyperCache, which is a file system cache for the Amiga because the Amiga didn’t have any out of the box, and it had done reasonably well.
Dave Plummer
So, I went through my registration cards, because in those days you had a four-by-six card that people had to fill out with their name and their address and, if they had an email, their email, and they’d send it in, they’d get notifications of updates and so on. Well, it’s shareware. And I went through the whole stack looking for anybody with a Microsoft email address, and I found maybe three or four people, and I just cold-emailed them and said, “Hey, I’m an operating system student in Saskatchewan looking for an opportunity.” I don’t remember exactly what I said.
So, I went through my registration cards, because in those days you had a four-by-six card that people had to fill out with their name and their address and, if they had an email, their email, and they’d send it in, they’d get notifications of updates and so on. Well, it’s shareware. And I went through the whole stack looking for anybody with a Microsoft email address, and I found maybe three or four people, and I just cold-emailed them and said, “Hey, I’m an operating system student in Saskatchewan looking for an opportunity.” I don’t remember exactly what I said.
Dave Plummer
But one guy, Alasdair Banks, he wrote back and he said, “I know somebody that I can put you in contact with.” And he put me in contact, I think, with a guy named Ben Slifka, who did a phone interview, who eventually wanted to hire me to work on MS-DOS for the summer. So, that’s how I got there.
But one guy, Alasdair Banks, he wrote back and he said, “I know somebody that I can put you in contact with.” And he put me in contact, I think, with a guy named Ben Slifka, who did a phone interview, who eventually wanted to hire me to work on MS-DOS for the summer. So, that’s how I got there.
Lex Fridman
You put yourself through school by… Tell me about HyperCache. You built a piece of software-
You put yourself through school by… Tell me about HyperCache. You built a piece of software-
Dave Plummer
It’s the weight loss program for hard drives.
It’s the weight loss program for hard drives.
Lex Fridman
That was sufficiently useful to a large number of people that would somehow give you money?
That was sufficiently useful to a large number of people that would somehow give you money?
Dave Plummer
Yeah, it made decent money. I mean, I sold a couple thousand copies. At 20 bucks a copy or 40 bucks a copy, depending on the rules.
Yeah, it made decent money. I mean, I sold a couple thousand copies. At 20 bucks a copy or 40 bucks a copy, depending on the rules.
Lex Fridman
What program, what language was it written in?
What program, what language was it written in?
Dave Plummer
C. So there were some assemblers. The actual really tight code to do the real work of transferring data to and from the cache was 68,000 assembly. Everything else was C.
C. So there were some assemblers. The actual really tight code to do the real work of transferring data to and from the cache was 68,000 assembly. Everything else was C.
Lex Fridman
Okay. This is like file system I/O?
Okay. This is like file system I/O?
Dave Plummer
Device block I/O. So any block that gets serviced from the drive would go through my cache first, and it was an N-way associative cache, and so it would try to match the geometry of the drive and do pre-fetch based on you’re trying to read a whole track at one time, that kind of thing.
Device block I/O. So any block that gets serviced from the drive would go through my cache first, and it was an N-way associative cache, and so it would try to match the geometry of the drive and do pre-fetch based on you’re trying to read a whole track at one time, that kind of thing.
Lex Fridman
What was it like trying to get your software out there at that time? How were you able to find customers?
What was it like trying to get your software out there at that time? How were you able to find customers?
Dave Plummer
Yeah, it’s interesting. I think I started on Usenet and some of the Amiga forums, posted, “Here’s my trial version, try it out for 30 days, see what you like.” And eventually it got picked up by a few retailers, and I remember I was with my… Now wife in her car, and she had a cell phone, because her dad was very concerned about her safety. And so this is late ’80s, and she’s got, you know, the antenna on the roof and the big box in the trunk, the whole deal. But we got a call from one of the software retailers that wanted to buy 50 copies at… 20 Bucks, which to me is a thousand bucks, which in 1989 or whatever year it is was a big deal. And so eventually a number of companies just bought inventory.
Yeah, it’s interesting. I think I started on Usenet and some of the Amiga forums, posted, “Here’s my trial version, try it out for 30 days, see what you like.” And eventually it got picked up by a few retailers, and I remember I was with my… Now wife in her car, and she had a cell phone, because her dad was very concerned about her safety. And so this is late ’80s, and she’s got, you know, the antenna on the roof and the big box in the trunk, the whole deal. But we got a call from one of the software retailers that wanted to buy 50 copies at… 20 Bucks, which to me is a thousand bucks, which in 1989 or whatever year it is was a big deal. And so eventually a number of companies just bought inventory.
Joining Microsoft
Lex Fridman
Let’s go to that time. It’s such an interesting time with Bill Gates and Microsoft. Why do you think Microsoft was dominating the software and the personal computing space at that time and, and really for many, many, many years after?
Let’s go to that time. It’s such an interesting time with Bill Gates and Microsoft. Why do you think Microsoft was dominating the software and the personal computing space at that time and, and really for many, many, many years after?
Dave Plummer
At the time, it was the single most potent assemblage of smart people that I’ve ever been a part of. And I’ve been in academia and I’ve been in industry to a certain extent, and you know, when you’re working at a regular computer company, the one guy who actually knows what he’s doing, his smarter friend? He probably works at Microsoft. So when you get there, you’re the big cheese from your small town, you think you know a lot, and all of a sudden, you’re just in an environment where, like, “Uh-oh, I’m just not going to speak because I don’t want to look stupid.”
At the time, it was the single most potent assemblage of smart people that I’ve ever been a part of. And I’ve been in academia and I’ve been in industry to a certain extent, and you know, when you’re working at a regular computer company, the one guy who actually knows what he’s doing, his smarter friend? He probably works at Microsoft. So when you get there, you’re the big cheese from your small town, you think you know a lot, and all of a sudden, you’re just in an environment where, like, “Uh-oh, I’m just not going to speak because I don’t want to look stupid.”
Lex Fridman
Okay. What about Bill Gates himself? What are some qualities of Bill Gates that you think contribute to the success of Microsoft?
Okay. What about Bill Gates himself? What are some qualities of Bill Gates that you think contribute to the success of Microsoft?
Dave Plummer
I think he was relentless in the pursuit of his one dream, which was his old slogan of a computer in every home and a computer on every desk. It was his special interest, and he was a smart guy, super determined, and he hired people that were as smart or smarter than him to help him execute it. And he built an almost unstoppable machine of intellect to go forth and make, let’s say, very simple products. MS-DOS is not a complicated product by any stretch, but it’s exactly what the market needed at that time.
I think he was relentless in the pursuit of his one dream, which was his old slogan of a computer in every home and a computer on every desk. It was his special interest, and he was a smart guy, super determined, and he hired people that were as smart or smarter than him to help him execute it. And he built an almost unstoppable machine of intellect to go forth and make, let’s say, very simple products. MS-DOS is not a complicated product by any stretch, but it’s exactly what the market needed at that time.
Lex Fridman
MS-DOS changed the game. And that’s actually the team you joined, the MS-DOS team, and I think you joined before Windows 95. Was released. So tell me about the story of MS-DOS. Its success is probably pivotal to the success of Microsoft.
MS-DOS changed the game. And that’s actually the team you joined, the MS-DOS team, and I think you joined before Windows 95. Was released. So tell me about the story of MS-DOS. Its success is probably pivotal to the success of Microsoft.
Dave Plummer
Before DOS, they were largely a language company, so they had made BASIC for a lot of computers, and they had a Fortran compiler and a Pascal compiler, that kind of thing. But their deal to have MS-DOS included with every version or every instance of the PC effectively set them as a standard that they were able to leverage for decades going forward. To a certain extent, they lucked into that, and on the other hand, they were smart to have done it. They didn’t charge IBM a lot of money for it, but making it a standard really played out to their advantage over time.
Before DOS, they were largely a language company, so they had made BASIC for a lot of computers, and they had a Fortran compiler and a Pascal compiler, that kind of thing. But their deal to have MS-DOS included with every version or every instance of the PC effectively set them as a standard that they were able to leverage for decades going forward. To a certain extent, they lucked into that, and on the other hand, they were smart to have done it. They didn’t charge IBM a lot of money for it, but making it a standard really played out to their advantage over time.
MS-DOS
Lex Fridman
So at that time, MS-DOS, no graphical interface. Can you just speak to what the heck MS-DOS is?
So at that time, MS-DOS, no graphical interface. Can you just speak to what the heck MS-DOS is?
Dave Plummer
It’s largely a command launcher. So you type in a name of a command, it looks it up to see if that’s in the current directory or on a special path of folders, and it loads it into memory and executes it if it’s there. And that’s 90% of what MS-DOS does. Now, it has environment variables and some complexity and a small scripting language built in, but it is basically just an operating system shell that allows you to use the resources of the computer, like the hard drive or the CPU, and it doesn’t allow you to multitask. There’s no graphical interface. Now, Microsoft did a- add a text-based graphical interface for things like an editor and QuickBASIC in DOS 5.0, I believe, and there was a DOS shell, which was sort of a graphical file manager in MS-DOS 4.0.
It’s largely a command launcher. So you type in a name of a command, it looks it up to see if that’s in the current directory or on a special path of folders, and it loads it into memory and executes it if it’s there. And that’s 90% of what MS-DOS does. Now, it has environment variables and some complexity and a small scripting language built in, but it is basically just an operating system shell that allows you to use the resources of the computer, like the hard drive or the CPU, and it doesn’t allow you to multitask. There’s no graphical interface. Now, Microsoft did a- add a text-based graphical interface for things like an editor and QuickBASIC in DOS 5.0, I believe, and there was a DOS shell, which was sort of a graphical file manager in MS-DOS 4.0.
Dave Plummer
So they experimented with it, but it’s largely a command prompt.
So they experimented with it, but it’s largely a command prompt.
Lex Fridman
Does it have the ability to communicate with external devices, so drivers and all that kind of stuff? How expansive of an operating system was MS-DOS?
Does it have the ability to communicate with external devices, so drivers and all that kind of stuff? How expansive of an operating system was MS-DOS?
Dave Plummer
Well, it was limited by the original x86 instruction set, which limited it to 640K. And then there were various Band-Aids on top of that to do high mem and then extended memory beyond that, and a lot of hoops have to be jumped through to make anything work without consuming base RAM.
Well, it was limited by the original x86 instruction set, which limited it to 640K. And then there were various Band-Aids on top of that to do high mem and then extended memory beyond that, and a lot of hoops have to be jumped through to make anything work without consuming base RAM.
Lex Fridman
Yeah, I mean, you programmed on MS-DOS. What’s it like? What are some interesting details there? Like you said, there’s the memory constraints of 640 kilobytes.
Yeah, I mean, you programmed on MS-DOS. What’s it like? What are some interesting details there? Like you said, there’s the memory constraints of 640 kilobytes.
Dave Plummer
Yeah, 640K is the maximum that’s ever gonna be available, so it’s not what’s available to you as an operating system developer, because whatever you use is what the user won’t get. So if you use 10K needlessly, you’re gonna… Every machine in the world now has 10K less, so it’s kind of a big responsibility.
Yeah, 640K is the maximum that’s ever gonna be available, so it’s not what’s available to you as an operating system developer, because whatever you use is what the user won’t get. So if you use 10K needlessly, you’re gonna… Every machine in the world now has 10K less, so it’s kind of a big responsibility.
Lex Fridman
Is that a true quote from Bill Gates, where he said,
Is that a true quote from Bill Gates, where he said,
Dave Plummer
Nobody will ever need more than 640K? Yeah, no, it’s not him. It’s been attributed to him, but not real.
Nobody will ever need more than 640K? Yeah, no, it’s not him. It’s been attributed to him, but not real.
Lex Fridman
What are some interesting aspects of what you were able to do as an intern and when you joined on MS-DOS and beyond?
What are some interesting aspects of what you were able to do as an intern and when you joined on MS-DOS and beyond?
Dave Plummer
One of the first things I did was to take SmartDrive, the disk cache, ’cause I had familiarity with disk caches- and to add CD-ROM caching to it, because that was new. CD-ROMs were just coming out. Microsoft Bookshelf is one of the few products you could run for it. And as you can imagine, caching a CD speeds it up by dozens of times if you’re smart about it. So it was a big performance win and a nice thing to work on. A bigger part of that was moving a bunch of SmartDrive and eventually the double-space compression engine up into what’s known as high memory.
One of the first things I did was to take SmartDrive, the disk cache, ’cause I had familiarity with disk caches- and to add CD-ROM caching to it, because that was new. CD-ROMs were just coming out. Microsoft Bookshelf is one of the few products you could run for it. And as you can imagine, caching a CD speeds it up by dozens of times if you’re smart about it. So it was a big performance win and a nice thing to work on. A bigger part of that was moving a bunch of SmartDrive and eventually the double-space compression engine up into what’s known as high memory.
Dave Plummer
And without rat holing on the technical aspect of it, on the x86, there’s something I believe called the A20 line. And I probably have this backwards, or I got a 50-50 shot at it, but if you’ve got the A20 line asserted, then your memory pointers wrap at the one megabyte mark.
And without rat holing on the technical aspect of it, on the x86, there’s something I believe called the A20 line. And I probably have this backwards, or I got a 50-50 shot at it, but if you’ve got the A20 line asserted, then your memory pointers wrap at the one megabyte mark.
Dave Plummer
And if not, they don’t. So you continue going up in memory. So you can rewrite memory above by combining your segment and offset registers to a number bigger than one megabyte, and you get an extra 64K. And you put your code in there, and then you just put stubs to jump to it from low memory. And so you can get another 64K out of the machine that way, and we did that for a couple of the products. And that’s … I had no idea what HIMEM was, ’cause I was an Amiga programmer and I’d never written any x86 code before I got there, so …
And if not, they don’t. So you continue going up in memory. So you can rewrite memory above by combining your segment and offset registers to a number bigger than one megabyte, and you get an extra 64K. And you put your code in there, and then you just put stubs to jump to it from low memory. And so you can get another 64K out of the machine that way, and we did that for a couple of the products. And that’s … I had no idea what HIMEM was, ’cause I was an Amiga programmer and I’d never written any x86 code before I got there, so …
Windows 95
Lex Fridman
So that was, like, a cool optimization you got to be a part of. So what about Windows? There was a parallel development of Windows 95, right, at that time. Did you get a chance to interact with those folks?
So that was, like, a cool optimization you got to be a part of. So what about Windows? There was a parallel development of Windows 95, right, at that time. Did you get a chance to interact with those folks?
Dave Plummer
I actually worked on Windows 95 for about three or four months. I was on the COM/OLE team doing the presentation cache, which is when you insert a, say, a Word or an Excel spreadsheet or chart into a Word document. You don’t want Excel to have to be loaded to render it every time, so there’s a presentation cache of enhanced metafiles and I was working on that. So that shipped in Windows 95, but I moved to the Shell team about six months after getting to Microsoft, and so I worked on NT from there forward.
I actually worked on Windows 95 for about three or four months. I was on the COM/OLE team doing the presentation cache, which is when you insert a, say, a Word or an Excel spreadsheet or chart into a Word document. You don’t want Excel to have to be loaded to render it every time, so there’s a presentation cache of enhanced metafiles and I was working on that. So that shipped in Windows 95, but I moved to the Shell team about six months after getting to Microsoft, and so I worked on NT from there forward.
Lex Fridman
Okay, and what’s 95? What’s NT?
Okay, and what’s 95? What’s NT?
Dave Plummer
Windows 95 is an evolution of the original 16-bit Windows 3.1, which was the very first popular version of Windows. And it adds 32-bit support, then VxD drivers and a bunch of new technology and an entirely new user interface. And it’s something that at the time was revolutionary. The people lined up at night to wait in line to buy the thing.
Windows 95 is an evolution of the original 16-bit Windows 3.1, which was the very first popular version of Windows. And it adds 32-bit support, then VxD drivers and a bunch of new technology and an entirely new user interface. And it’s something that at the time was revolutionary. The people lined up at night to wait in line to buy the thing.
Lex Fridman
Can you just take us back to that time and describe why 95 was such a big leap from 3.1? So Apple already had a graphical interface. Windows 3.1 had a graphical interface. Why was Windows 95 such a gigantic leap?
Can you just take us back to that time and describe why 95 was such a big leap from 3.1? So Apple already had a graphical interface. Windows 3.1 had a graphical interface. Why was Windows 95 such a gigantic leap?
Dave Plummer
I don’t want to make it as basic as the Start menu, but I think… …It’s a big part of it. I know when I first saw it… …I couldn’t quantify what about it was different and awesome, but I realized that I wanted to be a part of it, and that’s why I started writing a Shell extension, which became Zip folders at some point. But I was just fascinated by the new Shell, and that’s why I wound up working on the team that brought that Shell over to the NT and what’s Windows today.
I don’t want to make it as basic as the Start menu, but I think… …It’s a big part of it. I know when I first saw it… …I couldn’t quantify what about it was different and awesome, but I realized that I wanted to be a part of it, and that’s why I started writing a Shell extension, which became Zip folders at some point. But I was just fascinated by the new Shell, and that’s why I wound up working on the team that brought that Shell over to the NT and what’s Windows today.
Lex Fridman
Would you say that’s the greatest operating system ever? What’s the most impactful operating system ever?
Would you say that’s the greatest operating system ever? What’s the most impactful operating system ever?
Dave Plummer
Windows 95 would be number two for me. I think OS/360 is going to be number one.
Windows 95 would be number two for me. I think OS/360 is going to be number one.
Lex Fridman
Okay, interesting.
Okay, interesting.
Dave Plummer
Because you could take a machine and write a COBOL program for it in 1962, jump in your time machine, go to Poughkeepsie and boot up an IBM z17 mainframe and run it today. And they’ve been doing it for however many years that is. And it’s all on the business side, so we as consumers don’t have much access to it, but I think it was probably as influential in the commercial side as Windows 95 was in the home side. And then probably Linux would be number three for me. I put Linux as bigger than Unix, which doesn’t work because you can’t have one without the other, but the impact of Unix, BSD, and so forth, is largely in the academic space. It’s by programmers for programmers.
Because you could take a machine and write a COBOL program for it in 1962, jump in your time machine, go to Poughkeepsie and boot up an IBM z17 mainframe and run it today. And they’ve been doing it for however many years that is. And it’s all on the business side, so we as consumers don’t have much access to it, but I think it was probably as influential in the commercial side as Windows 95 was in the home side. And then probably Linux would be number three for me. I put Linux as bigger than Unix, which doesn’t work because you can’t have one without the other, but the impact of Unix, BSD, and so forth, is largely in the academic space. It’s by programmers for programmers.
Lex Fridman
So, yeah, Linux created… I mean, it was the embodiment of the open source spirit at its largest scale. Right? So it almost created a community and it created a spirit of programming that propagates to this day. That’s true. That’s true. Like scale matters.
So, yeah, Linux created… I mean, it was the embodiment of the open source spirit at its largest scale. Right? So it almost created a community and it created a spirit of programming that propagates to this day. That’s true. That’s true. Like scale matters.
Dave Plummer
Yeah, and its penetration on the server side of things now is, I don’t know if it’s equivalent to what System/360 achieved, but it’s almost ubiquitous, so…
Yeah, and its penetration on the server side of things now is, I don’t know if it’s equivalent to what System/360 achieved, but it’s almost ubiquitous, so…
Lex Fridman
Yeah, the world… I mean, this is the quiet secret of the universe, is it runs on Linux. Okay, so tell me about your work days. What were they like back then? Back in the MS-DOS and Windows 95 days? Take me through a productive day.
Yeah, the world… I mean, this is the quiet secret of the universe, is it runs on Linux. Okay, so tell me about your work days. What were they like back then? Back in the MS-DOS and Windows 95 days? Take me through a productive day.
Dave Plummer
Well, your day starts coming in and you’ve got to download the address book, which is… Microsoft has between 10 and 15,000 employees at this point, and we’re all on MS Mail. We’re just getting off of the PDP-11 called Miss Piggy, which ran Whizmail, and we’re running MS Mail. But MS Mail has a fixed address book that every user must download every morning, and when there are 10,000 people downloading 10,000 people, it gets pretty messy. And I think we were on 10 megabit networking at the time, so your first hour is downloading the address book, which was always frustrating. But you’d use that time to look at the crashes that would have happened overnight from a process we called Stress, which is NNT…
Well, your day starts coming in and you’ve got to download the address book, which is… Microsoft has between 10 and 15,000 employees at this point, and we’re all on MS Mail. We’re just getting off of the PDP-11 called Miss Piggy, which ran Whizmail, and we’re running MS Mail. But MS Mail has a fixed address book that every user must download every morning, and when there are 10,000 people downloading 10,000 people, it gets pretty messy. And I think we were on 10 megabit networking at the time, so your first hour is downloading the address book, which was always frustrating. But you’d use that time to look at the crashes that would have happened overnight from a process we called Stress, which is NNT…
Dave Plummer
All the machines that are unused run tests all night long and they try to crash themselves, and if they manage to crash themselves, it will drop into a debugger with a serial cable to another machine and you can connect to that other machine and remotely debug the crashed machine. So you come in and they will have triaged bugs, you know, there was a crash in the Start menu, so we’ll assign that to Dave, and so you come in and that’s your first thing, is to connect, because you’ve got to get that machine back to the guy that owns it and unlock the machine, so that’s your first hour of your day, is basically triage for bugs that have come up from Stress overnight and then at that point it’s probably back to coding, which unfortunately 80% of the time is fixing bugs, especially in my career it
All the machines that are unused run tests all night long and they try to crash themselves, and if they manage to crash themselves, it will drop into a debugger with a serial cable to another machine and you can connect to that other machine and remotely debug the crashed machine. So you come in and they will have triaged bugs, you know, there was a crash in the Start menu, so we’ll assign that to Dave, and so you come in and that’s your first thing, is to connect, because you’ve got to get that machine back to the guy that owns it and unlock the machine, so that’s your first hour of your day, is basically triage for bugs that have come up from Stress overnight and then at that point it’s probably back to coding, which unfortunately 80% of the time is fixing bugs, especially in my career it
Dave Plummer
was porting code and fixing bugs. I wasn’t writing a lot of new code and there were exceptions. I wrote a lot of new code on the side to get it out of my system… …From a day-to-day grind of always fixing bugs in other people’s code, which is amazing learning experience.
was porting code and fixing bugs. I wasn’t writing a lot of new code and there were exceptions. I wrote a lot of new code on the side to get it out of my system… …From a day-to-day grind of always fixing bugs in other people’s code, which is amazing learning experience.
Lex Fridman
So you did a lot of the… At Microsoft, you did a lot of the porting of what is it, Windows 95 code to NT?
So you did a lot of the… At Microsoft, you did a lot of the porting of what is it, Windows 95 code to NT?
Dave Plummer
Yeah. We took the entire Windows 95 user interface, and we ported it to NT, which meant making it Unicode, for one thing. So everything that was eight bits is now 16 bits.
Yeah. We took the entire Windows 95 user interface, and we ported it to NT, which meant making it Unicode, for one thing. So everything that was eight bits is now 16 bits.
Lex Fridman
Okay.
Okay.
Dave Plummer
…pointers. It’s quite a mess when you switch the code over, as you can imagine.
…pointers. It’s quite a mess when you switch the code over, as you can imagine.
Lex Fridman
Can you give us insights into what is involved in porting?
Can you give us insights into what is involved in porting?
Dave Plummer
It’s like breaking into somebody’s house and going through all their stuff and seeing the stuff in their drawers that they didn’t want you to see. You find all the good stuff, the pretty pictures hanging on the wall, and you find some disturbing stuff in the nightstand. I saw code that was like 200 characters wide with, you know, profanity and swears in it. It eventually got all cleaned up over the years by the time I left. But it was not always the most professional code in the world.
It’s like breaking into somebody’s house and going through all their stuff and seeing the stuff in their drawers that they didn’t want you to see. You find all the good stuff, the pretty pictures hanging on the wall, and you find some disturbing stuff in the nightstand. I saw code that was like 200 characters wide with, you know, profanity and swears in it. It eventually got all cleaned up over the years by the time I left. But it was not always the most professional code in the world.
Lex Fridman
Right, because every single piece of code you have to go through.
Right, because every single piece of code you have to go through.
Dave Plummer
Line by line, so you see it all.
Line by line, so you see it all.
Lex Fridman
Yeah. I mean, that’s the story of programmers. You write a piece of code, and you think it’ll never be seen by anybody. And sometimes, oftentimes, that code is going to be seen by a very large number of people, …that come after you, including you five years later. You yourself looking at your own code. Okay, so tell me about Windows NT. That was a giant leap too.
Yeah. I mean, that’s the story of programmers. You write a piece of code, and you think it’ll never be seen by anybody. And sometimes, oftentimes, that code is going to be seen by a very large number of people, …that come after you, including you five years later. You yourself looking at your own code. Okay, so tell me about Windows NT. That was a giant leap too.
Dave Plummer
It was. It was basically a clean-sheet design. So they went and they got Dave Cutler from Digital Equipment, who had done operating systems for them, VMS and RSX-11, he had done. And so he came over after, I believe it was Prism and MICA were some projects at DEC West that got canceled. And so you had a whole team of guys where their project is canceled, and basically, they took a whole bunch of them and came to Microsoft. And I don’t know the specifics of the deal, but they all showed up. So you had Dave Cutler and Mark Lucovsky and all these really smart guys from DEC, and they did basically a clean sheet, but they also had OS/2 as a starting point. But OS/2 was, of course, written in assembly language, and NT is going to be written in C.
It was. It was basically a clean-sheet design. So they went and they got Dave Cutler from Digital Equipment, who had done operating systems for them, VMS and RSX-11, he had done. And so he came over after, I believe it was Prism and MICA were some projects at DEC West that got canceled. And so you had a whole team of guys where their project is canceled, and basically, they took a whole bunch of them and came to Microsoft. And I don’t know the specifics of the deal, but they all showed up. So you had Dave Cutler and Mark Lucovsky and all these really smart guys from DEC, and they did basically a clean sheet, but they also had OS/2 as a starting point. But OS/2 was, of course, written in assembly language, and NT is going to be written in C.
Dave Plummer
So to what extent they were able to leverage any of that, I don’t actually know, but at least they had a system to start with.
So to what extent they were able to leverage any of that, I don’t actually know, but at least they had a system to start with.
The man behind Windows
Lex Fridman
You said that Dave Cutler’s the man, the mind behind Windows. Can you explain?
You said that Dave Cutler’s the man, the mind behind Windows. Can you explain?
Dave Plummer
So Dave Cutler is the architect of the kernel. So he is Linus in the Linux world. It’s Dave C. in the Windows world.
So Dave Cutler is the architect of the kernel. So he is Linus in the Linux world. It’s Dave C. in the Windows world.
Lex Fridman
Yeah. Dave C., okay.
Yeah. Dave C., okay.
Dave Plummer
And it’s not that there weren’t other people that contributed, of course, huge pieces to it. But I think he’s the driving force behind it and always largely has been. And he’s still… I think he’s 85 now. He still codes every day. He’s a Microsoft Fellow. He, as far as I know, still goes into work, so…
And it’s not that there weren’t other people that contributed, of course, huge pieces to it. But I think he’s the driving force behind it and always largely has been. And he’s still… I think he’s 85 now. He still codes every day. He’s a Microsoft Fellow. He, as far as I know, still goes into work, so…
Lex Fridman
Can you speak to the genius of that guy? Like, what’s interesting about his mind, having worked with him, having interacted with Dave Cutler?
Can you speak to the genius of that guy? Like, what’s interesting about his mind, having worked with him, having interacted with Dave Cutler?
Dave Plummer
Well, the dude’s wicked smart, but he’s also like a farmer. He’s like the guy that will follow you around and make sure that stuff gets done and gets done right to make sure that you’re not checking any crap into his operating system. And he won’t tolerate it. And he’s a real taskmaster in that regard, but I think it really paid off ’cause it was a very big paradigm shift for Microsoft developers to be subjected to the Dave Cutler Digital Equipment style of leadership.
Well, the dude’s wicked smart, but he’s also like a farmer. He’s like the guy that will follow you around and make sure that stuff gets done and gets done right to make sure that you’re not checking any crap into his operating system. And he won’t tolerate it. And he’s a real taskmaster in that regard, but I think it really paid off ’cause it was a very big paradigm shift for Microsoft developers to be subjected to the Dave Cutler Digital Equipment style of leadership.
Lex Fridman
What did you learn from that about successful software teams, where there’s a large number of people collaborating? Because Microsoft had a lot of brilliant engineers back then, and like you said, Dave Cutler. They had to they had to create completely new systems, many of which we still use today. What have you learned about great software engineering teams from that time?
What did you learn from that about successful software teams, where there’s a large number of people collaborating? Because Microsoft had a lot of brilliant engineers back then, and like you said, Dave Cutler. They had to they had to create completely new systems, many of which we still use today. What have you learned about great software engineering teams from that time?
Dave Plummer
Tools are everything, I think, for one. And people are everything. We’ll grant that. But the tool set is a huge factor. If we went ahead with Git, it would have been immensely easier. We were using Diff and, you know, manual Deltas. …To do this porting and stuff. So being able to fork a branch of source code would be a luxury that is new to me. At the time, it would have been really handy.
Tools are everything, I think, for one. And people are everything. We’ll grant that. But the tool set is a huge factor. If we went ahead with Git, it would have been immensely easier. We were using Diff and, you know, manual Deltas. …To do this porting and stuff. So being able to fork a branch of source code would be a luxury that is new to me. At the time, it would have been really handy.
Lex Fridman
What were some memorable conversations from that time when you walked over next door-
What were some memorable conversations from that time when you walked over next door-
Dave Plummer
Well, what…
Well, what…
Lex Fridman
… and talked to some of these folks?
… and talked to some of these folks?
Dave Plummer
…I was not present for was, somebody was complaining, a new hire came into the team and was working on what I believe was called Cairo. Cairo was going to be the next future operating system, was going to be beautiful, and have a whole new user interface newer than Windows 95, and it never materialized. But while they were working on it, one of the guys working on Cairo was kind of flaming on the open NT dev alias, which is thousands of people, how shitty the NT boot experience was. The response that came back was an epic flame that I wish I would have saved, and I won’t name the guy who wrote it. He knows who he is, but… … It was a work of art of angry flame mail, kind of like the ones you see Linus send every now and then about kernel stuff. So it’s a very similar sentiment.
…I was not present for was, somebody was complaining, a new hire came into the team and was working on what I believe was called Cairo. Cairo was going to be the next future operating system, was going to be beautiful, and have a whole new user interface newer than Windows 95, and it never materialized. But while they were working on it, one of the guys working on Cairo was kind of flaming on the open NT dev alias, which is thousands of people, how shitty the NT boot experience was. The response that came back was an epic flame that I wish I would have saved, and I won’t name the guy who wrote it. He knows who he is, but… … It was a work of art of angry flame mail, kind of like the ones you see Linus send every now and then about kernel stuff. So it’s a very similar sentiment.
Lex Fridman
Were there, like, kind of intellectual debates, like-
Were there, like, kind of intellectual debates, like-
Dave Plummer
Oh yeah.
Oh yeah.
Lex Fridman
… there’s some, some heated stuff with the engineers?
… there’s some, some heated stuff with the engineers?
Dave Plummer
It was… Yeah, it got contentious. So you’ve got intellects competing, and eventually, the technical merits for some people are secondary, and it’s about besting the other person in that argument. And it’s no longer productive at that point half the time, but there was a fair bit of that.
It was… Yeah, it got contentious. So you’ve got intellects competing, and eventually, the technical merits for some people are secondary, and it’s about besting the other person in that argument. And it’s no longer productive at that point half the time, but there was a fair bit of that.
Lex Fridman
Yeah, I’ve seen those kind of debates in programming language design communities, like Guido van Rossum, the leaders of those communities, it can wear them down because people get… You almost forget the mission you’re on and start being very nitpicky about the details. I mean, engineering minds get together, and you just go to war over the stupidest, like, syntax subtlety.
Yeah, I’ve seen those kind of debates in programming language design communities, like Guido van Rossum, the leaders of those communities, it can wear them down because people get… You almost forget the mission you’re on and start being very nitpicky about the details. I mean, engineering minds get together, and you just go to war over the stupidest, like, syntax subtlety.
Dave Plummer
Right.
Right.
Lex Fridman
Well, I shouldn’t say stupid, but it’s a small syntax subtlety for programming language. I’m sure there are internal battles about specific kernel components.
Well, I shouldn’t say stupid, but it’s a small syntax subtlety for programming language. I’m sure there are internal battles about specific kernel components.
Dave Plummer
Yeah, I mean, there’s one that I lost that still bugs me to this day, I think.
Yeah, I mean, there’s one that I lost that still bugs me to this day, I think.
Lex Fridman
Okay, yeah. What’s that?
Okay, yeah. What’s that?
Dave Plummer
‘Cause I still think was right. Well, when we were doing the shell, we were porting everything from ANSI to Unicode, so every character that was eight bits now becomes 16 bits. Now, the problem is I’m on a MIPS box ’cause I’m porting it to RISC…. and you can’t have unaligned addresses. But if you take two ID lists, which are basically past components, you take the one for C colon backslash, take the one for Windows, take the one for System32, and you add them together. But if you’ve got an odd number of characters, now you’re at an odd address in this thing, and it takes me an immense amount of work to turn on exception handlers, to do unaligned byte access, to pull the string out and copy it manually.
‘Cause I still think was right. Well, when we were doing the shell, we were porting everything from ANSI to Unicode, so every character that was eight bits now becomes 16 bits. Now, the problem is I’m on a MIPS box ’cause I’m porting it to RISC…. and you can’t have unaligned addresses. But if you take two ID lists, which are basically past components, you take the one for C colon backslash, take the one for Windows, take the one for System32, and you add them together. But if you’ve got an odd number of characters, now you’re at an odd address in this thing, and it takes me an immense amount of work to turn on exception handlers, to do unaligned byte access, to pull the string out and copy it manually.
Dave Plummer
And it’s literally like a hundred to a thousand times the amount of work to read a string out of this ID list on a MIPS machine because it’s unaligned. So I’m having the argument that even though it’s late in the Windows 95, they’ve already shipped one beta, that we should now just guarantee that ID lists are always an even number of bytes, or do some hack to just make sure this never happens so the code that references them on all this hard work can just blaze through it. And it became a shouting match and sort of a personal match and I lost that one. And I still think that, I know today, that that code running on Windows is thousands of times slower than it has to be and it- nobody cares ’cause it’s plenty fast but- …it could be a lot faster.
And it’s literally like a hundred to a thousand times the amount of work to read a string out of this ID list on a MIPS machine because it’s unaligned. So I’m having the argument that even though it’s late in the Windows 95, they’ve already shipped one beta, that we should now just guarantee that ID lists are always an even number of bytes, or do some hack to just make sure this never happens so the code that references them on all this hard work can just blaze through it. And it became a shouting match and sort of a personal match and I lost that one. And I still think that, I know today, that that code running on Windows is thousands of times slower than it has to be and it- nobody cares ’cause it’s plenty fast but- …it could be a lot faster.
Debugging
Lex Fridman
Yeah. So yeah, I mean you mentioned MIPS and RISC. How deeply did you have to understand the lowest level? Sort of the lowest level of the software and even the hardware with the stuff you were building. Like what are the layers of the abstractions you had to understand to be successful with all the stuff you’re doing with NT and before that with…
Yeah. So yeah, I mean you mentioned MIPS and RISC. How deeply did you have to understand the lowest level? Sort of the lowest level of the software and even the hardware with the stuff you were building. Like what are the layers of the abstractions you had to understand to be successful with all the stuff you’re doing with NT and before that with…
Dave Plummer
Well, about half your day is going to be spent debugging, and most of the time is going to be spent in call stacks that are in pure assembly language because there’s no source level debugging. So it’s not like we’re in Visual Studio, and you hit a breakpoint, and it pops up, and there’s the source code. You can go look at the source code, but you’re looking at the raw assembly dump from the machine at all times.
Well, about half your day is going to be spent debugging, and most of the time is going to be spent in call stacks that are in pure assembly language because there’s no source level debugging. So it’s not like we’re in Visual Studio, and you hit a breakpoint, and it pops up, and there’s the source code. You can go look at the source code, but you’re looking at the raw assembly dump from the machine at all times.
Lex Fridman
So even if you’re programming in C, the debugging is in assembly?
So even if you’re programming in C, the debugging is in assembly?
Dave Plummer
Yeah, 100%.
Yeah, 100%.
Lex Fridman
Oh man.
Oh man.
Dave Plummer
So it’s a little cumbersome.
So it’s a little cumbersome.
Lex Fridman
Oh.
Oh.
Dave Plummer
And better yet, we’re doing four instruction sets because we’re doing Intel MIPS, Alpha, and PowerPC. So depending on which machine it crashes on, you’ve got an entirely different instruction set… …That registers. And so you get reasonably adept at debugging all four, but I had more experience in MIPS, so MIPS stuff would come my way.
And better yet, we’re doing four instruction sets because we’re doing Intel MIPS, Alpha, and PowerPC. So depending on which machine it crashes on, you’ve got an entirely different instruction set… …That registers. And so you get reasonably adept at debugging all four, but I had more experience in MIPS, so MIPS stuff would come my way.
Lex Fridman
That’s a real endurance event. I mean, can you speak to that? The torture there is debugging, especially that kind of debugging without the tooling associated with it. I mean that’s, you know, programming, kids these days, programming isn’t all about creating beautiful things, right? It’s also about fixing things.
That’s a real endurance event. I mean, can you speak to that? The torture there is debugging, especially that kind of debugging without the tooling associated with it. I mean that’s, you know, programming, kids these days, programming isn’t all about creating beautiful things, right? It’s also about fixing things.
Dave Plummer
Yeah, I would say that 20% of my professional life has been creating and 80% has been debugging and fixing. And I mean, I got a bit of a reputation as somebody who could fix stuff, and so stuff like that would flow to me, and so I would spend more time doing that. I wasn’t renowned as a creative UI genius where I’m flowering all these new ideas. So I got to fix ugly stuff, but you get really good at that. So I don’t mind it until it’s one of those things where you’ve been chasing it for so long that you don’t know what to do next and you can’t understand why it doesn’t work or how it ever worked or whatever situation you happen to be in, and you know, after a day of it, it can get pretty trying.
Yeah, I would say that 20% of my professional life has been creating and 80% has been debugging and fixing. And I mean, I got a bit of a reputation as somebody who could fix stuff, and so stuff like that would flow to me, and so I would spend more time doing that. I wasn’t renowned as a creative UI genius where I’m flowering all these new ideas. So I got to fix ugly stuff, but you get really good at that. So I don’t mind it until it’s one of those things where you’ve been chasing it for so long that you don’t know what to do next and you can’t understand why it doesn’t work or how it ever worked or whatever situation you happen to be in, and you know, after a day of it, it can get pretty trying.
Lex Fridman
Yeah, debugging can be real torture. It can be really, really difficult. There’s a psychological component, I think, of perseverance.
Yeah, debugging can be real torture. It can be really, really difficult. There’s a psychological component, I think, of perseverance.
Dave Plummer
I think the ones that, you know, take you a day, they resolve one of two ways. Either it’s like, “Oh, extra semicolon,” and then you finally see it… …Or it’s some horrible manifestation of cross-threaded apartment nonsense that was really hard. But it can go both ways. I had a bug. It wasn’t my bug, actually, but it was a manifestation of a bug in Task Manager where every now and then it would say greater than 100% total CPU usage, and this looks pretty silly for a task manager. So I had tried to resolve it for a long time, and I’d talked to the kernel guys about my issue, and they were unsympathetic, let’s say, because the kernel guys are a special breed, and they weren’t interested in my user land problems. “It’s probably some issue in my code,” right?
I think the ones that, you know, take you a day, they resolve one of two ways. Either it’s like, “Oh, extra semicolon,” and then you finally see it… …Or it’s some horrible manifestation of cross-threaded apartment nonsense that was really hard. But it can go both ways. I had a bug. It wasn’t my bug, actually, but it was a manifestation of a bug in Task Manager where every now and then it would say greater than 100% total CPU usage, and this looks pretty silly for a task manager. So I had tried to resolve it for a long time, and I’d talked to the kernel guys about my issue, and they were unsympathetic, let’s say, because the kernel guys are a special breed, and they weren’t interested in my user land problems. “It’s probably some issue in my code,” right?
Dave Plummer
And they’re probably right, but it wasn’t in this case, and I was sure of it, and so I kept adding asserts all through the code to make sure that the preparatory steps of adding the stuff together were never more than 100, and that the final sum was never more than 100, and finally it never asserted. But occasionally we would get this bug where people would still see it, and so I finally put my phone number in the assert, and I was like, “If you see this message, call DavePL at 425-836,” my phone number. And finally, we did get a catch in the actual stress debugger that I was talking about earlier where it happened to somebody with a debugger connected.
And they’re probably right, but it wasn’t in this case, and I was sure of it, and so I kept adding asserts all through the code to make sure that the preparatory steps of adding the stuff together were never more than 100, and that the final sum was never more than 100, and finally it never asserted. But occasionally we would get this bug where people would still see it, and so I finally put my phone number in the assert, and I was like, “If you see this message, call DavePL at 425-836,” my phone number. And finally, we did get a catch in the actual stress debugger that I was talking about earlier where it happened to somebody with a debugger connected.
Dave Plummer
We were able to go through, and it was actually a kernel accounting issue, and it wasn’t a Task Manager issue, so they just fixed it in the kernel once I was able to prove that it was in fact a kernel issue. And you’d think we would then remove my phone number, but we just commented it out, so it’s shipped, and it’s in all the damn source code leaks for NT that are out there, so…
We were able to go through, and it was actually a kernel accounting issue, and it wasn’t a Task Manager issue, so they just fixed it in the kernel once I was able to prove that it was in fact a kernel issue. And you’d think we would then remove my phone number, but we just commented it out, so it’s shipped, and it’s in all the damn source code leaks for NT that are out there, so…
Lex Fridman
That’s awesome.
That’s awesome.
Dave Plummer
…that’s how I find Task Manager code. I search for my phone number on Google, and it will reverse-find…
…that’s how I find Task Manager code. I search for my phone number on Google, and it will reverse-find…
Lex Fridman
Oh, yeah, that’s fantastic.
Oh, yeah, that’s fantastic.
Dave Plummer
…the NT source code.
…the NT source code.
Lex Fridman
Can you speak to the assert thing? By the way, I saw, I think you tweeted or you said somewhere that if you want to take your asserts really seriously, you add your home phone number in there. It’s true, it’s true.
Can you speak to the assert thing? By the way, I saw, I think you tweeted or you said somewhere that if you want to take your asserts really seriously, you add your home phone number in there. It’s true, it’s true.
Dave Plummer
A little facetious, because it’s probably not the smartest thing, but…
A little facetious, because it’s probably not the smartest thing, but…
Lex Fridman
No, it’s not.
No, it’s not.
Dave Plummer
…you will find out.
…you will find out.
Lex Fridman
But I mean, assert by itself is already a serious thing, because it stops all execution. I mean, this is one of the reasons I really, really love asserts, because they stop everything and force you to take care of the problem.
But I mean, assert by itself is already a serious thing, because it stops all execution. I mean, this is one of the reasons I really, really love asserts, because they stop everything and force you to take care of the problem.
Dave Plummer
Yeah, I’m a little religious about my asserts too. I don’t assert things that I hope aren’t true. I assert things that I know cannot be true, and I think that’s really the intent of an assertion. So I’m overstating the obvious, but when it does occur, it’s a bug, plain and simple. It’s not a warning.
Yeah, I’m a little religious about my asserts too. I don’t assert things that I hope aren’t true. I assert things that I know cannot be true, and I think that’s really the intent of an assertion. So I’m overstating the obvious, but when it does occur, it’s a bug, plain and simple. It’s not a warning.
Lex Fridman
It’s kind of fascinating how often it can really help you figure out the problem, because if you put asserts everywhere, you can get very quickly to the source of the problem.
It’s kind of fascinating how often it can really help you figure out the problem, because if you put asserts everywhere, you can get very quickly to the source of the problem.
Dave Plummer
Yeah, I tend to… it’s not something I want to suggest you go back and add later. It’s something you should do organically as you build your code.
Yeah, I tend to… it’s not something I want to suggest you go back and add later. It’s something you should do organically as you build your code.
Lex Fridman
As you’re building.
As you’re building.
Dave Plummer
So for each function, if you’ve got assumptions like, “I know that this pointer is never null,” well, assert that. If you know this count is always less than twice the byte width, assert that. And don’t be afraid, because if it asserts, it’s doing you a favor. I think some people are afraid. You know, it’s like when you turn out of an intersection, and you think maybe there’s somebody coming, and you don’t look left. Or maybe I’m one to do that. But it’s like that. People don’t assert because they’re afraid they’re going to fire. Well, no, you want to know.
So for each function, if you’ve got assumptions like, “I know that this pointer is never null,” well, assert that. If you know this count is always less than twice the byte width, assert that. And don’t be afraid, because if it asserts, it’s doing you a favor. I think some people are afraid. You know, it’s like when you turn out of an intersection, and you think maybe there’s somebody coming, and you don’t look left. Or maybe I’m one to do that. But it’s like that. People don’t assert because they’re afraid they’re going to fire. Well, no, you want to know.
Task Manager
Lex Fridman
You mentioned Task Manager. Obviously, we have to talk about this, the legendary program that you created, the Windows Task Manager. Tell me every detail of how you built it. What is Windows Task Manager?
You mentioned Task Manager. Obviously, we have to talk about this, the legendary program that you created, the Windows Task Manager. Tell me every detail of how you built it. What is Windows Task Manager?
Dave Plummer
So Windows Task Manager is a way to go in and find out which apps on your system are using the computer, using the hardware, using the CPU, using the memory, and which ones might be using too much or locked up or going crazy. And it gives you the ability to terminate and kill those ones. So it’s an inspection and a fixing tool.
So Windows Task Manager is a way to go in and find out which apps on your system are using the computer, using the hardware, using the CPU, using the memory, and which ones might be using too much or locked up or going crazy. And it gives you the ability to terminate and kill those ones. So it’s an inspection and a fixing tool.
Lex Fridman
Yeah, it lists all the processes. I mean, it’s a legendary piece of software. It’s crazy. You just take it for granted. It’s like the Start menu, right? It’s like genius.
Yeah, it lists all the processes. I mean, it’s a legendary piece of software. It’s crazy. You just take it for granted. It’s like the Start menu, right? It’s like genius.
Dave Plummer
Well, I had the great fortune of working on a lot of things that people are familiar with. And Task Manager was one of those side projects that I started as something that I wanted for myself and eventually came in-house. So I started writing it at home and I got the basics up and running. I was using, I think it’s HKey Current Performance or HKey Performance in the registry to get the stats because I didn’t have access to the internal APIs because I was working from home and I don’t call those if I’m working from home.
Well, I had the great fortune of working on a lot of things that people are familiar with. And Task Manager was one of those side projects that I started as something that I wanted for myself and eventually came in-house. So I started writing it at home and I got the basics up and running. I was using, I think it’s HKey Current Performance or HKey Performance in the registry to get the stats because I didn’t have access to the internal APIs because I was working from home and I don’t call those if I’m working from home.
Dave Plummer
And when I brought it in-house then I was able to call things like NtQuerySystemInformation or NtQueryProcessInformation and get the real answers very quickly, which enabled it to become a very fast and responsive app. So people have come to rely on it because I wrote it to be as reliable as possible. I wasn’t worried about the features. It was a basic set of functionality that I wanted in there. I got everything I wanted, but I wanted it to be really robust. And small. And the original was like 87k.
And when I brought it in-house then I was able to call things like NtQuerySystemInformation or NtQueryProcessInformation and get the real answers very quickly, which enabled it to become a very fast and responsive app. So people have come to rely on it because I wrote it to be as reliable as possible. I wasn’t worried about the features. It was a basic set of functionality that I wanted in there. I got everything I wanted, but I wanted it to be really robust. And small. And the original was like 87k.
Lex Fridman
Okay, can you speak to what it takes to build a piece of software like that that doesn’t freeze?
Okay, can you speak to what it takes to build a piece of software like that that doesn’t freeze?
Dave Plummer
You don’t assume much, right? If you’re going to call the shell to run an app, well, that could be a network path that’s on a TCP/IP share that takes 90 seconds to time out. So anytime you do any kind of API call like that, that could take time, you’re going to wind up doing it on a separate thread. And so the app becomes a little more complex because everything is multithreaded.
You don’t assume much, right? If you’re going to call the shell to run an app, well, that could be a network path that’s on a TCP/IP share that takes 90 seconds to time out. So anytime you do any kind of API call like that, that could take time, you’re going to wind up doing it on a separate thread. And so the app becomes a little more complex because everything is multithreaded.
Lex Fridman
Okay, so what programming language were you working in?
Okay, so what programming language were you working in?
Dave Plummer
C++.
C++.
Lex Fridman
So this was for Windows NT?
So this was for Windows NT?
Dave Plummer
Yes.
Yes.
Lex Fridman
Okay.
Okay.
Dave Plummer
So this shipped initially in NT 4.0.
So this shipped initially in NT 4.0.
Lex Fridman
Okay, so what are some interesting details about this program? Because you have to get it as simple as possible, but also as robust as possible. What are some interesting optimizations, for example, you had to implement?
Okay, so what are some interesting details about this program? Because you have to get it as simple as possible, but also as robust as possible. What are some interesting optimizations, for example, you had to implement?
Dave Plummer
There are a couple of things that are a little hardcore now. I’m surprised I did. Like, I didn’t want to link to the C runtimes at all. So I made sure never to call a runtime call and I didn’t link to them, and that saved me whatever the C runtime is, 96k or something. So, it almost doubled the size of the app if you just touched any C call. So I was careful not to do that, but then I was actually writing in C++, which is C with objects more than anything. But in order to get it to work, I had to go through and call all the object constructors manually from the dispatch table and stuff because you don’t have the runtimes to do it for you.
There are a couple of things that are a little hardcore now. I’m surprised I did. Like, I didn’t want to link to the C runtimes at all. So I made sure never to call a runtime call and I didn’t link to them, and that saved me whatever the C runtime is, 96k or something. So, it almost doubled the size of the app if you just touched any C call. So I was careful not to do that, but then I was actually writing in C++, which is C with objects more than anything. But in order to get it to work, I had to go through and call all the object constructors manually from the dispatch table and stuff because you don’t have the runtimes to do it for you.
Dave Plummer
So you’re working with a compiler that doesn’t have its runtime, and I don’t want to get off-topic on the technical issues, but it’s a lot of extra work to get it to work, but when you do, it’s incredibly small and tight.
So you’re working with a compiler that doesn’t have its runtime, and I don’t want to get off-topic on the technical issues, but it’s a lot of extra work to get it to work, but when you do, it’s incredibly small and tight.
Lex Fridman
That’s about the size- of the program. What are some interesting aspects of tracking down every process and how much CPU usage is in that process?
That’s about the size- of the program. What are some interesting aspects of tracking down every process and how much CPU usage is in that process?
Dave Plummer
One of the cooler things that I saw is… I don’t want to say I invented Hamming code, but I kind of invented Hamming code without knowing Hamming code existed. So every column and every row in Task Manager has a bit on whether it’s become dirty or not, and then I can look, basically the same way Hamming code looks in your X and Y columns, to find out which rows have changed, go through, and find out which ones actually need to be repainted. So Task Manager is super efficient and it works in concert with the ListView control, which provides that functionality to go through and repaint as little as an individual cell that changes from frame to frame. So it could paint very fast, it can resize very smoothly, and resizing was probably my biggest personal goal with that app.
One of the cooler things that I saw is… I don’t want to say I invented Hamming code, but I kind of invented Hamming code without knowing Hamming code existed. So every column and every row in Task Manager has a bit on whether it’s become dirty or not, and then I can look, basically the same way Hamming code looks in your X and Y columns, to find out which rows have changed, go through, and find out which ones actually need to be repainted. So Task Manager is super efficient and it works in concert with the ListView control, which provides that functionality to go through and repaint as little as an individual cell that changes from frame to frame. So it could paint very fast, it can resize very smoothly, and resizing was probably my biggest personal goal with that app.
Dave Plummer
So you can size it to any size and it still works and even if you have 32 CPUs, which wasn’t possible in the day, it will draw, I think, only eight graphs and then it wraps but it still works today. So kind of proud of that.
So you can size it to any size and it still works and even if you have 32 CPUs, which wasn’t possible in the day, it will draw, I think, only eight graphs and then it wraps but it still works today. So kind of proud of that.
Lex Fridman
It is incredible. You’ve gotten the chance to observe the evolution of Task Manager. In some ways, it really hasn’t changed much. Maybe there are some prettier aspects to it that fit into whatever version of Windows it’s in, but it’s really basically the same thing.
It is incredible. You’ve gotten the chance to observe the evolution of Task Manager. In some ways, it really hasn’t changed much. Maybe there are some prettier aspects to it that fit into whatever version of Windows it’s in, but it’s really basically the same thing.
Dave Plummer
The functionality is very same. The reporting is more because they’ve added GPU and thermals and things like that, which is really nice to have. And we didn’t have that ability in the day, so…
The functionality is very same. The reporting is more because they’ve added GPU and thermals and things like that, which is really nice to have. And we didn’t have that ability in the day, so…
Lex Fridman
I mean, what can you say? Do you know about, like, was there any refactoring done or is it basically the same code?
I mean, what can you say? Do you know about, like, was there any refactoring done or is it basically the same code?
Dave Plummer
As far as I know, the original code’s still mostly all there so there are layers of drawing code and dark mode code and whatever else, XML, schema code, that goes on top of that that makes it four megabytes instead of 87k but that’s the world we live in, so…
As far as I know, the original code’s still mostly all there so there are layers of drawing code and dark mode code and whatever else, XML, schema code, that goes on top of that that makes it four megabytes instead of 87k but that’s the world we live in, so…
Lex Fridman
Yeah, it’s one of those pieces of software you create and just stay once it’s there. It’s just really like the Start menu, and I’m sure if you remove it, people would just lose their mind.
Yeah, it’s one of those pieces of software you create and just stay once it’s there. It’s just really like the Start menu, and I’m sure if you remove it, people would just lose their mind.
Dave Plummer
Yeah, it might be locked in for a while, on that one. It might be good.
Yeah, it might be locked in for a while, on that one. It might be good.
3D Pinball: Space Cadet
Lex Fridman
Yeah, I thought that would be true for Clippy, but Clippy will make it back one day. All right, what are some other pieces of software you created at the time that are legendary? So you were part of Space Cadet Pinball, at least porting.
Yeah, I thought that would be true for Clippy, but Clippy will make it back one day. All right, what are some other pieces of software you created at the time that are legendary? So you were part of Space Cadet Pinball, at least porting.
Dave Plummer
Yeah, so they came into my office and said, “Hey, what are you doing?” And I told them what I was doing and they said, “Well, how do you want to spend your next three months?” And I said, “I have no idea.” And they said, “Do you want to port Pinball?” And I’d seen Space Cadet Pinball as a game standalone for the Win95 platform and it had a couple different tables and it was a cool game so I was kind of excited. What they wanted was some visual splash for NT to show that NT can do, for then, high-speed graphics or at least responsive graphics.
Yeah, so they came into my office and said, “Hey, what are you doing?” And I told them what I was doing and they said, “Well, how do you want to spend your next three months?” And I said, “I have no idea.” And they said, “Do you want to port Pinball?” And I’d seen Space Cadet Pinball as a game standalone for the Win95 platform and it had a couple different tables and it was a cool game so I was kind of excited. What they wanted was some visual splash for NT to show that NT can do, for then, high-speed graphics or at least responsive graphics.
Dave Plummer
And so I took a shot, and unfortunately, a lot of the code was in Assembly, and I was on a MIPS, so I had to rewrite the code in C so that I could then port it to all the different platforms. At the heart of the game is a huge state engine, and it’s like a giant switch statement with, if I remember, like 50 entries in it.
And so I took a shot, and unfortunately, a lot of the code was in Assembly, and I was on a MIPS, so I had to rewrite the code in C so that I could then port it to all the different platforms. At the heart of the game is a huge state engine, and it’s like a giant switch statement with, if I remember, like 50 entries in it.
Dave Plummer
And it’s got an Easter egg built in. And decoding the state, it’s like running a neural network through this thing as you hit it with different states. And I just put it aside and treated it as a black box. So my code runs on top of that and does the drawing and the sound and everything else. But the original game is still running. And somebody recently asked me why it is slightly different; the physics are slightly different from the Windows 95 version, but it should be the same code because I’m trying very hard to preserve that. But what it is, is I had a bug where I will draw as many frames per second as I can, which on a modern computer can be 5,000 frames a second for Pinball because it’s a pretty basic game.
And it’s got an Easter egg built in. And decoding the state, it’s like running a neural network through this thing as you hit it with different states. And I just put it aside and treated it as a black box. So my code runs on top of that and does the drawing and the sound and everything else. But the original game is still running. And somebody recently asked me why it is slightly different; the physics are slightly different from the Windows 95 version, but it should be the same code because I’m trying very hard to preserve that. But what it is, is I had a bug where I will draw as many frames per second as I can, which on a modern computer can be 5,000 frames a second for Pinball because it’s a pretty basic game.
Dave Plummer
And so all your physics are interpolated 5,000 times per second instead of 30 times a second, or whatever you would’ve got on the old one. So you’re getting arguably better, or at least different physics, but they fixed that since, so…
And so all your physics are interpolated 5,000 times per second instead of 30 times a second, or whatever you would’ve got on the old one. So you’re getting arguably better, or at least different physics, but they fixed that since, so…
Lex Fridman
Why is that game so awesome?
Why is that game so awesome?
Dave Plummer
I think it’s a great design. I mean, I take no credit for that. That’s all totally the guys at Cinematronics. But the original game is a great design. It’s very similar to Black Knight 2000, which I own as an actual physical pinball machine. And the layout is actually very similar. I don’t know if it was inspired by it or not. So it’s a good game.
I think it’s a great design. I mean, I take no credit for that. That’s all totally the guys at Cinematronics. But the original game is a great design. It’s very similar to Black Knight 2000, which I own as an actual physical pinball machine. And the layout is actually very similar. I don’t know if it was inspired by it or not. So it’s a good game.
Lex Fridman
Yeah. Sometimes I think about Tetris, about certain games with pretty primitive graphics that captivate the excitement of a large number of people. And maybe it’s the excitement of a large number of people that contributes to the awesomeness of the game. So when many people together get excited and talk about it, that sort of gets implanted into your head. But that’s one of the great games. I mean, even like Solitaire and Minesweeper. I mean, there’s just a generation of people that have gone to war in Minesweeper, right?
Yeah. Sometimes I think about Tetris, about certain games with pretty primitive graphics that captivate the excitement of a large number of people. And maybe it’s the excitement of a large number of people that contributes to the awesomeness of the game. So when many people together get excited and talk about it, that sort of gets implanted into your head. But that’s one of the great games. I mean, even like Solitaire and Minesweeper. I mean, there’s just a generation of people that have gone to war in Minesweeper, right?
Dave Plummer
Well, those things were included in the OS not as games, but as educational tools to get you to use a mouse.
Well, those things were included in the OS not as games, but as educational tools to get you to use a mouse.
Lex Fridman
Oh, interesting.
Oh, interesting.
Dave Plummer
So Solitaire is there to show you how to do drag and drop. And Minesweeper’s probably right-click. I think you put a flag or some item. I’m not a Minesweeper guy, but so each one of them teaches you something.
So Solitaire is there to show you how to do drag and drop. And Minesweeper’s probably right-click. I think you put a flag or some item. I’m not a Minesweeper guy, but so each one of them teaches you something.
Lex Fridman
Minesweeper guy? That’s funny. Yeah. Wow, I didn’t know that. That’s interesting. And that’s true. But I don’t know how many hours I’ve spent on these games, and millions of people have spent millions of hours on these games.
Minesweeper guy? That’s funny. Yeah. Wow, I didn’t know that. That’s interesting. And that’s true. But I don’t know how many hours I’ve spent on these games, and millions of people have spent millions of hours on these games.
Dave Plummer
I used to volunteer teaching computer science at my kids’ school, you know, for the third graders and stuff. So it’s more like logging in than computer science. But the kids, of course, all their dads work at Microsoft, so nobody’s impressed by anything you do. But so one of the kids found out I worked on Pinball, and then they were like, “Whoa, you worked on Pinball?” Because they all knew that in those days. Now the kids are probably aged out, they don’t know it anymore, but for a brief period.
I used to volunteer teaching computer science at my kids’ school, you know, for the third graders and stuff. So it’s more like logging in than computer science. But the kids, of course, all their dads work at Microsoft, so nobody’s impressed by anything you do. But so one of the kids found out I worked on Pinball, and then they were like, “Whoa, you worked on Pinball?” Because they all knew that in those days. Now the kids are probably aged out, they don’t know it anymore, but for a brief period.
Lex Fridman
You’re behind the Windows activation.
You’re behind the Windows activation.
Dave Plummer
You say it like it’s a bad thing.
You say it like it’s a bad thing.
Lex Fridman
Everything’s a matter of perspective. So tell the story of that. What’s Windows activation? How’d you get involved?
Everything’s a matter of perspective. So tell the story of that. What’s Windows activation? How’d you get involved?
Dave Plummer
So they came to me late in the XP ship process. I don’t know if the beta had gone out. I don’t think the beta had gone out yet, but they had intended to take the Office activation code and then adapt it to Windows and add activation to Windows. But whoever was responsible for doing it had slipped it enough times that it wasn’t going to happen. So I had kind of a reputation for being able to fix things quickly, so they came to me and said, “Can you get this done in time for XP?” “I don’t know, but I’ll try.” So with the help of the guys that were doing the DRM stuff on the DRM side and the research guys doing the math for the product keys and everything else, we cranked it out in time for XP.
So they came to me late in the XP ship process. I don’t know if the beta had gone out. I don’t think the beta had gone out yet, but they had intended to take the Office activation code and then adapt it to Windows and add activation to Windows. But whoever was responsible for doing it had slipped it enough times that it wasn’t going to happen. So I had kind of a reputation for being able to fix things quickly, so they came to me and said, “Can you get this done in time for XP?” “I don’t know, but I’ll try.” So with the help of the guys that were doing the DRM stuff on the DRM side and the research guys doing the math for the product keys and everything else, we cranked it out in time for XP.
Dave Plummer
And I don’t know what its actual impact is for revenue, but I imagine it’s substantial when you start enforcing license keys.
And I don’t know what its actual impact is for revenue, but I imagine it’s substantial when you start enforcing license keys.
Lex Fridman
I wonder what it is.
I wonder what it is.
Dave Plummer
I don’t know.
I don’t know.
Lex Fridman
Because it’s also annoying.
Because it’s also annoying.
Dave Plummer
It is, especially if you have to phone activate. And that was just the case that we had to carry with us as an albatross around our neck, where you’ve got to pass data up to the clearinghouse, the backend systems that are going to approve your key. You’ve got to tell it all your hardware parameters, like how much memory and hard drive space and the various things the hardware key is bound to, as well as the product key, and you’ve got it encoded in letters and numbers that somebody’s willing to read in over a phone. And if you think doing product activation is painful over the phone, could you imagine being the person that worked on the other end of that line? I mean, that’s just got to be a mind-numbing job to listen to product keys for eight hours a day.
It is, especially if you have to phone activate. And that was just the case that we had to carry with us as an albatross around our neck, where you’ve got to pass data up to the clearinghouse, the backend systems that are going to approve your key. You’ve got to tell it all your hardware parameters, like how much memory and hard drive space and the various things the hardware key is bound to, as well as the product key, and you’ve got it encoded in letters and numbers that somebody’s willing to read in over a phone. And if you think doing product activation is painful over the phone, could you imagine being the person that worked on the other end of that line? I mean, that’s just got to be a mind-numbing job to listen to product keys for eight hours a day.
Start menu and taskbar
Lex Fridman
Yeah, one of the challenges with Windows, and it’s been a frustration point for me, but I understand from a design perspective it’s very difficult, is so many different kinds of people use Windows. But it’s been frustrating how over time Windows has more and more leaned into the direction of not the power user, I should say, which is why Linux has always been really wonderful. But from an activation perspective or from any kind of configuration, it’s been a source of a lot of frustration.
Yeah, one of the challenges with Windows, and it’s been a frustration point for me, but I understand from a design perspective it’s very difficult, is so many different kinds of people use Windows. But it’s been frustrating how over time Windows has more and more leaned into the direction of not the power user, I should say, which is why Linux has always been really wonderful. But from an activation perspective or from any kind of configuration, it’s been a source of a lot of frustration.
Dave Plummer
Yeah, one of my more popular episodes of late has been why you can’t move the Windows taskbar. And I had no idea, but the outrage is palpable amongst people that you—
Yeah, one of my more popular episodes of late has been why you can’t move the Windows taskbar. And I had no idea, but the outrage is palpable amongst people that you—
Lex Fridman
Yes.
Yes.
Dave Plummer
…just put it on the left or top and you can’t anymore, and it is an affront to their existence. And I understand it to a certain extent.
…just put it on the left or top and you can’t anymore, and it is an affront to their existence. And I understand it to a certain extent.
Lex Fridman
Well, it’s one of the main reasons I really just dislike Windows. There’s a lot of aspects about Windows 11 I dislike. One of which is like you can’t customize things as much about the position of the taskbar, just basic customization. Can we just configure stuff? Because there’s going to be a small contingent of power users that are just going to enjoy the hell out of this operating system if you just give them that option. It costs you nothing. Just give them that freedom.
Well, it’s one of the main reasons I really just dislike Windows. There’s a lot of aspects about Windows 11 I dislike. One of which is like you can’t customize things as much about the position of the taskbar, just basic customization. Can we just configure stuff? Because there’s going to be a small contingent of power users that are just going to enjoy the hell out of this operating system if you just give them that option. It costs you nothing. Just give them that freedom.
Dave Plummer
Well, it does cost, right? Because the freedom to put the Start menu on the left or the top or the right really increases the complexity of the code that renders the Start menu and lays out the tabs and does all the things, and now it’s a much larger surface for bugs and it’s a much larger piece of code to maintain, so you probably need more developers or another developer or some portion of a developer’s time. So the question becomes at what point is it still worth it to satisfy the niche needs of a small set of users? Those decisions weren’t mine to make, but I could see it from both sides.
Well, it does cost, right? Because the freedom to put the Start menu on the left or the top or the right really increases the complexity of the code that renders the Start menu and lays out the tabs and does all the things, and now it’s a much larger surface for bugs and it’s a much larger piece of code to maintain, so you probably need more developers or another developer or some portion of a developer’s time. So the question becomes at what point is it still worth it to satisfy the niche needs of a small set of users? Those decisions weren’t mine to make, but I could see it from both sides.
Lex Fridman
I think just like the people who make movies and insert very nuanced details that only a small number of people will realize are there, that’s going to really pay off. There’s a kind of reputation that builds over time that has a very powerful ripple effect. That I think it has so many benefits, including for hiring great software engineers. It’s like you create this aura of a place that puts love into every detail, that really takes care of the power users, that takes care of the developers, and I think Microsoft has more and more moved in that direction with GitHub and acquiring GitHub and just taking care of the developers. But on the Windows interface side, come on, some customization.
I think just like the people who make movies and insert very nuanced details that only a small number of people will realize are there, that’s going to really pay off. There’s a kind of reputation that builds over time that has a very powerful ripple effect. That I think it has so many benefits, including for hiring great software engineers. It’s like you create this aura of a place that puts love into every detail, that really takes care of the power users, that takes care of the developers, and I think Microsoft has more and more moved in that direction with GitHub and acquiring GitHub and just taking care of the developers. But on the Windows interface side, come on, some customization.
Lex Fridman
With VS Code, you can customize everything. Why can’t we customize the Start menu, all right? And the taskbar, and really every aspect of the Windows interface. I don’t know, maybe you’re right. Maybe it increases the complexity of the code. I suspect that’s just not the case.
With VS Code, you can customize everything. Why can’t we customize the Start menu, all right? And the taskbar, and really every aspect of the Windows interface. I don’t know, maybe you’re right. Maybe it increases the complexity of the code. I suspect that’s just not the case.
Dave Plummer
I bet it was. I bet it was a scheduling decision when they rewrote the Start menu. I think they rewrote it because it’s different than the old taskbar.
I bet it was. I bet it was a scheduling decision when they rewrote the Start menu. I think they rewrote it because it’s different than the old taskbar.
Dave Plummer
And somebody was tasked with, “You’ve got to deliver this set of functionality, and if I cut out putting it on the left and the top and the right and two rows of tabs and all the other cool features, I can deliver it four months sooner.” And I’m not saying that’s the right decision, but I’m guessing that might be the kind of thing that motivates it. And they’re on such a different release schedule now. It used to be… You won’t see much craftsmanship unless somebody owns a component for a long time and it settles to a point that then you can work on and polish it, right? But if it’s always churning and the UI is changing every release, it’s never going to get that level of polish. Although I think the UI is pretty nice, but…
And somebody was tasked with, “You’ve got to deliver this set of functionality, and if I cut out putting it on the left and the top and the right and two rows of tabs and all the other cool features, I can deliver it four months sooner.” And I’m not saying that’s the right decision, but I’m guessing that might be the kind of thing that motivates it. And they’re on such a different release schedule now. It used to be… You won’t see much craftsmanship unless somebody owns a component for a long time and it settles to a point that then you can work on and polish it, right? But if it’s always churning and the UI is changing every release, it’s never going to get that level of polish. Although I think the UI is pretty nice, but…
Lex Fridman
Yeah, it is nice, but I think it’s a craftsmanship thing. Just like you with the Task Manager, if there’s a guy or a girl in there who takes ownership of it, who has a passionate… For them, it’s a thing that they take pride in over a period of time, they can by themselves in a short amount of time create something truly wonderful.
Yeah, it is nice, but I think it’s a craftsmanship thing. Just like you with the Task Manager, if there’s a guy or a girl in there who takes ownership of it, who has a passionate… For them, it’s a thing that they take pride in over a period of time, they can by themselves in a short amount of time create something truly wonderful.
Dave Plummer
Right.
Right.
Lex Fridman
And like, I think if you have large software engineering teams with managers and scheduling of meetings and all this kind of stuff, yeah, okay. Then your argument applies. But if you allow the flourishing of individuals that create cool stuff and their own sort of side project, which Google is very good at.
And like, I think if you have large software engineering teams with managers and scheduling of meetings and all this kind of stuff, yeah, okay. Then your argument applies. But if you allow the flourishing of individuals that create cool stuff and their own sort of side project, which Google is very good at.
Dave Plummer
They’ve tried that, right? At Google, yeah.
They’ve tried that, right? At Google, yeah.
Lex Fridman
Yeah, like have fun with it. Like do some crazy stuff and then we’ll integrate it. We’ll try to integrate it into the whole ecosystem. I don’t know. I don’t know, because to me, it’s such a great joy for an individual developer to create something like customization of the Start menu or the taskbar because you know that millions of people are going to use the taskbar. And then you know that thousands, tens of thousands of developers might be using to customize even little subtle aspects of the taskbar. You know how much joy you create, you give to people to customize, to have some kind of JSON thing where you customize something about the taskbar?
Yeah, like have fun with it. Like do some crazy stuff and then we’ll integrate it. We’ll try to integrate it into the whole ecosystem. I don’t know. I don’t know, because to me, it’s such a great joy for an individual developer to create something like customization of the Start menu or the taskbar because you know that millions of people are going to use the taskbar. And then you know that thousands, tens of thousands of developers might be using to customize even little subtle aspects of the taskbar. You know how much joy you create, you give to people to customize, to have some kind of JSON thing where you customize something about the taskbar?
Dave Plummer
Okay, but how do you respond to the Steve Jobs aspect of giving you customization implies that we couldn’t figure out the right answer for you? Or maybe there is no right answer and all four answers are equally right. I have no idea, but…
Okay, but how do you respond to the Steve Jobs aspect of giving you customization implies that we couldn’t figure out the right answer for you? Or maybe there is no right answer and all four answers are equally right. I have no idea, but…
Lex Fridman
Right. I think I’ve always— I’m glad Apple exists. It’s a beautiful thing, and that idea of design is wonderful, but I always thought that Windows creates the contrast. The point of Windows is to be the operating system that works on all kinds of devices, that’s supposed to be much more open. And they’ve moved towards that direction more and more with Windows Subsystem for Linux. It’s just this whole developer-friendly ecosystem. The interface should be in the spirit of that, I think. But I do think that there could also be security vulnerabilities created with that. It’s not just the complexity of the code, because Windows is just under attack.
Right. I think I’ve always— I’m glad Apple exists. It’s a beautiful thing, and that idea of design is wonderful, but I always thought that Windows creates the contrast. The point of Windows is to be the operating system that works on all kinds of devices, that’s supposed to be much more open. And they’ve moved towards that direction more and more with Windows Subsystem for Linux. It’s just this whole developer-friendly ecosystem. The interface should be in the spirit of that, I think. But I do think that there could also be security vulnerabilities created with that. It’s not just the complexity of the code, because Windows is just under attack.
Lex Fridman
It’s very difficult to keep it secure. Anyway, taking that tangent, you also developed ZIP file support for Windows, creating Visual ZIP, which eventually evolved into ZIP folders. Tell the story of that.
It’s very difficult to keep it secure. Anyway, taking that tangent, you also developed ZIP file support for Windows, creating Visual ZIP, which eventually evolved into ZIP folders. Tell the story of that.
Dave Plummer
So that was a piece of software that I wrote at home again, and what happened was, I was out with my wife, and I think it was a Sunday afternoon. We were driving around. This is 1993, and we’re living in our apartment, and we’re just seeing what the housing market is like out there. And there’s a guy, he’s got this beautiful three-bedroom house and a Corvette convertible, ’93 red, torch red, parked in the driveway, and the house is for sale, and it’s like 300K, I think. And there’s no chance I’m coming up with 300K at that point, or even the down payment on that. So I took the flyer, and I cut the picture of the house out, and I taped it to my monitor. And that was my incentive to just write something at night, because when I came home, I was doing two things.
So that was a piece of software that I wrote at home again, and what happened was, I was out with my wife, and I think it was a Sunday afternoon. We were driving around. This is 1993, and we’re living in our apartment, and we’re just seeing what the housing market is like out there. And there’s a guy, he’s got this beautiful three-bedroom house and a Corvette convertible, ’93 red, torch red, parked in the driveway, and the house is for sale, and it’s like 300K, I think. And there’s no chance I’m coming up with 300K at that point, or even the down payment on that. So I took the flyer, and I cut the picture of the house out, and I taped it to my monitor. And that was my incentive to just write something at night, because when I came home, I was doing two things.
Dave Plummer
I was, one, expressing a creativity that I couldn’t get out at work when I was just fixing bugs, and I was trying to make some extra money. And so I wrote a Shell extension. Before I actually went to the Shell team, I started it, and that’s what led to my interest in going to the Shell team, based on an MSDN sample or MSJ at the time, an MSJ sample that I saw on how to, like, bring up a folder. Well, once I had the very basic bring up a folder template, adding ZIP file support to it was just incremental all the way. And I released it as a shareware product.
I was, one, expressing a creativity that I couldn’t get out at work when I was just fixing bugs, and I was trying to make some extra money. And so I wrote a Shell extension. Before I actually went to the Shell team, I started it, and that’s what led to my interest in going to the Shell team, based on an MSDN sample or MSJ at the time, an MSJ sample that I saw on how to, like, bring up a folder. Well, once I had the very basic bring up a folder template, adding ZIP file support to it was just incremental all the way. And I released it as a shareware product.
Dave Plummer
I think it was 19.95 or 29.95, and I sold, whatever, a couple of hundreds or thousands of copies. And one day, I’m getting ready for work, and I get a call, and it’s a lady, and she says, “Are you Dave Plummer?” I said, “Yeah.” She said, “Are you the guy that wrote Visual ZIP?” I said, “Yeah.” And she said, “Well, this is Betsy from Microsoft, and we’d like you to come by and come in and talk about an acquisition of it.” And I said, “Okay, what building are you in?” And she’s like, “What do you mean?” And I said, “Well, I’ll come by.” And she said, “Well, no, you got to talk to travel, and you got to talk to legal, and this all has to be set up.” And I’m like, “I don’t get it. We both work at the same place.” Why can’t I just stop by?” I don’t know if I said that literally—
I think it was 19.95 or 29.95, and I sold, whatever, a couple of hundreds or thousands of copies. And one day, I’m getting ready for work, and I get a call, and it’s a lady, and she says, “Are you Dave Plummer?” I said, “Yeah.” She said, “Are you the guy that wrote Visual ZIP?” I said, “Yeah.” And she said, “Well, this is Betsy from Microsoft, and we’d like you to come by and come in and talk about an acquisition of it.” And I said, “Okay, what building are you in?” And she’s like, “What do you mean?” And I said, “Well, I’ll come by.” And she said, “Well, no, you got to talk to travel, and you got to talk to legal, and this all has to be set up.” And I’m like, “I don’t get it. We both work at the same place.” Why can’t I just stop by?” I don’t know if I said that literally—
Dave Plummer
…but it was a few minutes of back and forth where we both realized that she didn’t know I worked there.
…but it was a few minutes of back and forth where we both realized that she didn’t know I worked there.
Lex Fridman
Yeah, that’s funny.
Yeah, that’s funny.
Dave Plummer
They had just cold-called the author and then found out that it was me.
They had just cold-called the author and then found out that it was me.
Lex Fridman
Yeah, that’s funny.
Yeah, that’s funny.
Dave Plummer
And so they made me an offer on it, and it’s the kind of thing where if I don’t accept the offer, well, now my choices are: I can keep selling my own version and quit Microsoft, or I can stop selling my own version and work for Microsoft. Neither of those is great. I mean, I’d like to keep my job, of course, but I’d like to still— …have this income stream. And the other option was accept their offer, which is what I did. So then I bought a used ’93 red Corvette, and…
And so they made me an offer on it, and it’s the kind of thing where if I don’t accept the offer, well, now my choices are: I can keep selling my own version and quit Microsoft, or I can stop selling my own version and work for Microsoft. Neither of those is great. I mean, I’d like to keep my job, of course, but I’d like to still— …have this income stream. And the other option was accept their offer, which is what I did. So then I bought a used ’93 red Corvette, and…
Lex Fridman
And you got to continue building it internally?
And you got to continue building it internally?
Dave Plummer
I did. So we took a lot of features out, right, to simplify, because it had encryption, and it had a number of features that were common in ZIP programs of the day, but probably weren’t appropriate for Windows. And, at the time, encryption was like a munition, so you couldn’t just add encryption willy-nilly to various parts of the operating system, so we took out some things like that. Multi-volume support, I think, was taken out just to simplify it.
I did. So we took a lot of features out, right, to simplify, because it had encryption, and it had a number of features that were common in ZIP programs of the day, but probably weren’t appropriate for Windows. And, at the time, encryption was like a munition, so you couldn’t just add encryption willy-nilly to various parts of the operating system, so we took out some things like that. Multi-volume support, I think, was taken out just to simplify it.
Lex Fridman
Can you speak to ZIP in general, just the history of ZIP and, you know, compression, that whole thing?
Can you speak to ZIP in general, just the history of ZIP and, you know, compression, that whole thing?
Dave Plummer
Yeah, it was really borne out of the BBS era when people were dialing in on modems to download trialware and shareware and other things from BBSs online and to compress them. Executables compressed about half their size. Other stuff compresses much more. But a guy named Phil Katz came up with a command-line program for MS-DOS called PKZIP, which was able to do compression of programs, and he has a rather tragic arc. But it became ubiquitous in the entire PC industry, and pretty much everybody was using it. So when Windows came out, there was no way to open up a ZIP file, but everybody had been creating them for a decade, and so that really drove the desire to have the ZIP support right in Windows.
Yeah, it was really borne out of the BBS era when people were dialing in on modems to download trialware and shareware and other things from BBSs online and to compress them. Executables compressed about half their size. Other stuff compresses much more. But a guy named Phil Katz came up with a command-line program for MS-DOS called PKZIP, which was able to do compression of programs, and he has a rather tragic arc. But it became ubiquitous in the entire PC industry, and pretty much everybody was using it. So when Windows came out, there was no way to open up a ZIP file, but everybody had been creating them for a decade, and so that really drove the desire to have the ZIP support right in Windows.
Lex Fridman
Yeah, and that’s another piece of software that’s just kind of with us to this day.
Yeah, and that’s another piece of software that’s just kind of with us to this day.
Dave Plummer
Mm-hmm. And it could be vastly improved, but, you know, it was written in the single-core days, so it doesn’t do anything multi-threaded. And you’ve got a 96-core 7995, well, it uses one of them to unzip your file.
Mm-hmm. And it could be vastly improved, but, you know, it was written in the single-core days, so it doesn’t do anything multi-threaded. And you’ve got a 96-core 7995, well, it uses one of them to unzip your file.
Lex Fridman
What other awesome things were you a part of at Microsoft? What other pieces of software?
What other awesome things were you a part of at Microsoft? What other pieces of software?
Dave Plummer
I worked on the initial prototypes of Windows Media Center. So we did—
I worked on the initial prototypes of Windows Media Center. So we did—
Lex Fridman
Nice.
Nice.
Dave Plummer
…that in ’96, I believe. And we didn’t have, at the time, any sources, so we had like a CD of MPEG video files of Raging Rudolph and I think the original South Park video— …the Christmas one, which is all wildly inappropriate in the workplace today, but— it’s all the content we had until we got actually… We had them put a satellite dish on the roof, a DSS, whatever the 18-inch dish is, because we couldn’t get cable to the building. And so we built up this thing that would eventually look a lot like Media Center, and it was distance viewing UI for Windows, so you could sit with a remote control on a desktop and have, you know… The current Start menu is not great at 20 feet away.
…that in ’96, I believe. And we didn’t have, at the time, any sources, so we had like a CD of MPEG video files of Raging Rudolph and I think the original South Park video— …the Christmas one, which is all wildly inappropriate in the workplace today, but— it’s all the content we had until we got actually… We had them put a satellite dish on the roof, a DSS, whatever the 18-inch dish is, because we couldn’t get cable to the building. And so we built up this thing that would eventually look a lot like Media Center, and it was distance viewing UI for Windows, so you could sit with a remote control on a desktop and have, you know… The current Start menu is not great at 20 feet away.
Blue Screen of Death
Lex Fridman
Tell me the story of the infamous blue screen of death.
Tell me the story of the infamous blue screen of death.
Dave Plummer
What it is is when Windows has no other option, when the kernel gets into a state where something illegal has happened, so let’s say a device driver is trying to write to a piece of memory it doesn’t own or is trying to free a piece of memory twice, something that just cannot happen, and the kernel has no other option, it will shut the machine down to save your work. And… Well, not save, but prevent further damage, and it puts up a blue screen and it prints out the stack information, depending how your settings are. Sometimes it’s just a sad face. In the current Windows.
What it is is when Windows has no other option, when the kernel gets into a state where something illegal has happened, so let’s say a device driver is trying to write to a piece of memory it doesn’t own or is trying to free a piece of memory twice, something that just cannot happen, and the kernel has no other option, it will shut the machine down to save your work. And… Well, not save, but prevent further damage, and it puts up a blue screen and it prints out the stack information, depending how your settings are. Sometimes it’s just a sad face. In the current Windows.
Lex Fridman
I wonder what the first version of Windows when the blue screen came to be.
I wonder what the first version of Windows when the blue screen came to be.
Dave Plummer
So, Windows 3 had a blue screen- but it’s completely unrelated to the blue screen in Windows NT. And I talked to the guy who wrote the blue screen in Windows NT. His name’s Jon Viert, and the reason he picked white on blue, I had thought, I’d always heard it was because in the labs, you could walk through a lab where we have 50 PCs all running stressed. “Oh, that one’s got a blue screen. It’s—” “crashed.” It wasn’t that simple. It was just the MIPS firmware that he was building it on was blue on white, and Visual SlickEdit that he was using as an editor was also the same color scheme. And so you could code, boot, crash, and reboot, all in the same color scheme.
So, Windows 3 had a blue screen- but it’s completely unrelated to the blue screen in Windows NT. And I talked to the guy who wrote the blue screen in Windows NT. His name’s Jon Viert, and the reason he picked white on blue, I had thought, I’d always heard it was because in the labs, you could walk through a lab where we have 50 PCs all running stressed. “Oh, that one’s got a blue screen. It’s—” “crashed.” It wasn’t that simple. It was just the MIPS firmware that he was building it on was blue on white, and Visual SlickEdit that he was using as an editor was also the same color scheme. And so you could code, boot, crash, and reboot, all in the same color scheme.
Lex Fridman
Why do you think so many problems with computers can be solved by turning it off and turning it back on again?
Why do you think so many problems with computers can be solved by turning it off and turning it back on again?
Dave Plummer
I think there’s two major things that happen with computers as you run them over time. One is memory gets used and not freed. And so it accumulates on the heap or in the swap file or wherever, and things get sluggish. And the other is, code gets into a state that the developers didn’t anticipate or didn’t test very well. And maybe that’s a rare state, but now that Notepad or Word or Excel is in that state, your system is goofy. So if you just reboot the thing or shut it down or restart it, you’re getting a fresh state and there are no memory leaks, so it covers a lot of sins, basically.
I think there’s two major things that happen with computers as you run them over time. One is memory gets used and not freed. And so it accumulates on the heap or in the swap file or wherever, and things get sluggish. And the other is, code gets into a state that the developers didn’t anticipate or didn’t test very well. And maybe that’s a rare state, but now that Notepad or Word or Excel is in that state, your system is goofy. So if you just reboot the thing or shut it down or restart it, you’re getting a fresh state and there are no memory leaks, so it covers a lot of sins, basically.
Lex Fridman
And the intricate ways that several pieces of software in a goofy state interact with each other creates sort of a meta goofy state that just the entire system starts acting a little weird. And then somehow fixes it. What are some of the best and the worst code you’ve seen during that time at Microsoft? What’s some beautiful code and what’s some ugly code that pops to memory?
And the intricate ways that several pieces of software in a goofy state interact with each other creates sort of a meta goofy state that just the entire system starts acting a little weird. And then somehow fixes it. What are some of the best and the worst code you’ve seen during that time at Microsoft? What’s some beautiful code and what’s some ugly code that pops to memory?
Best programmers
Dave Plummer
In terms of beautiful code, there’s two that stand out for me. One is the kernel in general. When you get down into the Windows kernel-
In terms of beautiful code, there’s two that stand out for me. One is the kernel in general. When you get down into the Windows kernel-
Dave Plummer
…in the actual NT APIs and stuff, it’s very well written, and it’s written to a standard that you don’t see on the user side, or at least is uncommon on the user side. On the user side, probably the coolest code I remember seeing was a guy named Bob Day, who wrote a named pipe implementation to eliminate the use of shared memory. So Windows 95 had a big shared segment amongst all the shell processes where it would store stuff that was common to all the shells. We didn’t want to do that. Shared memory is a bad idea on NT at an industrial level, so he came up with a way to do it with named pipes, and I remember doing a code review on it, and it was very impressive to walk through the code.
…in the actual NT APIs and stuff, it’s very well written, and it’s written to a standard that you don’t see on the user side, or at least is uncommon on the user side. On the user side, probably the coolest code I remember seeing was a guy named Bob Day, who wrote a named pipe implementation to eliminate the use of shared memory. So Windows 95 had a big shared segment amongst all the shell processes where it would store stuff that was common to all the shells. We didn’t want to do that. Shared memory is a bad idea on NT at an industrial level, so he came up with a way to do it with named pipes, and I remember doing a code review on it, and it was very impressive to walk through the code.
Dave Plummer
It was one of those things where it was like, “Oh, I don’t think I could have done that if I was trying.”
It was one of those things where it was like, “Oh, I don’t think I could have done that if I was trying.”
Lex Fridman
Who’s the greatest programmer you’ve ever encountered?
Who’s the greatest programmer you’ve ever encountered?
Dave Plummer
You know what? I don’t think there is any one. I’ve met a number of great programmers, but I’ll tell you one story that impressed me a lot. When I was brand new at the company, I’d been there like six weeks, and I’m working on this OLE Presentation Cache that I’d mentioned earlier. And I’m on Windows 95, and I’ve got Excel inserted into Word, and I’m in the kernel debugger, and something’s going wrong in the scheduler. And I’ve been there, you know, I’ve barely written any x86 code, and I’m looking at the Windows scheduler, trying to figure out why my thing is deadlocked.
You know what? I don’t think there is any one. I’ve met a number of great programmers, but I’ll tell you one story that impressed me a lot. When I was brand new at the company, I’d been there like six weeks, and I’m working on this OLE Presentation Cache that I’d mentioned earlier. And I’m on Windows 95, and I’ve got Excel inserted into Word, and I’m in the kernel debugger, and something’s going wrong in the scheduler. And I’ve been there, you know, I’ve barely written any x86 code, and I’m looking at the Windows scheduler, trying to figure out why my thing is deadlocked.
Dave Plummer
And eventually, I get stuck, so I’m kind of out of my element, and I send an email to the Windows 95 kernel team and say, “Could you send somebody by?” So about 10 minutes later, this developer strolls in, and they’re just holding a null modem cable, which is to connect my two machines together so they can debug one with the other in case I didn’t have it, but it was already set up. And so they sit down, and they’re using WinDbg, which is a horrible debugger. It’s just accursed.
And eventually, I get stuck, so I’m kind of out of my element, and I send an email to the Windows 95 kernel team and say, “Could you send somebody by?” So about 10 minutes later, this developer strolls in, and they’re just holding a null modem cable, which is to connect my two machines together so they can debug one with the other in case I didn’t have it, but it was already set up. And so they sit down, and they’re using WinDbg, which is a horrible debugger. It’s just accursed.
Dave Plummer
But they’re very, very competent with it, and they are just blasting through the call stacks, and they’re checking all these objects in the kernel and trying to find out who’s waiting on what and why things are deadlocked, and what things are signaled and what’s not. And it’s just this quicksilver ballet of call stacks flying by, and I’m watching this, and I’m pretty blown away because I’m a good programmer, but this person is an amazing debugger, and I’ve never seen a performance like this. And about five minutes in, I just hear, “Oh, I see.” And then they disconnected and got up and left. And that was Laura Butler, who became a distinguished engineer at Microsoft. I think she may still be; I’m not sure if she’s retired or not, but…
But they’re very, very competent with it, and they are just blasting through the call stacks, and they’re checking all these objects in the kernel and trying to find out who’s waiting on what and why things are deadlocked, and what things are signaled and what’s not. And it’s just this quicksilver ballet of call stacks flying by, and I’m watching this, and I’m pretty blown away because I’m a good programmer, but this person is an amazing debugger, and I’ve never seen a performance like this. And about five minutes in, I just hear, “Oh, I see.” And then they disconnected and got up and left. And that was Laura Butler, who became a distinguished engineer at Microsoft. I think she may still be; I’m not sure if she’s retired or not, but…
Dave Plummer
So she kind of set my template for, you know, what Microsoft developers were like when they’re debugging and what kernel developers were like, and even what female developers were like, because I had such a small sample set. But it was a very high standard, so…
So she kind of set my template for, you know, what Microsoft developers were like when they’re debugging and what kernel developers were like, and even what female developers were like, because I had such a small sample set. But it was a very high standard, so…
Lex Fridman
There are few things I love in life more than people who are ultra-competent at anything, really. But the lower level, the better, in the engineering space. They’re able to, for example, run or maintain the computer infrastructure. So not the individual computer, but the computers communicating and working together. Those people are just magicians. It’s so inspiring to make… It’s like watching a great carpenter or…
There are few things I love in life more than people who are ultra-competent at anything, really. But the lower level, the better, in the engineering space. They’re able to, for example, run or maintain the computer infrastructure. So not the individual computer, but the computers communicating and working together. Those people are just magicians. It’s so inspiring to make… It’s like watching a great carpenter or…
Dave Plummer
I love anything done really, really well.
I love anything done really, really well.
Lex Fridman
Yeah, it’s beautiful to see. It’s beautiful to see that humans are able to accomplish that. Even in civil engineering, when I look at bridges, it’s like the number of people that had to come together to build that, and now millions of people use it every single day. With software, sometimes you don’t get to see visually just the number of people impacted by a thing. So imagine how many people are impacted by Linux and all the different open-source systems that make up Linux. It’s incredible. And Task Manager is an example of a piece of software. Just how many people have used that over the years, and how many times? It’s crazy. It’s probably, is it billions? Billions have used that.
Yeah, it’s beautiful to see. It’s beautiful to see that humans are able to accomplish that. Even in civil engineering, when I look at bridges, it’s like the number of people that had to come together to build that, and now millions of people use it every single day. With software, sometimes you don’t get to see visually just the number of people impacted by a thing. So imagine how many people are impacted by Linux and all the different open-source systems that make up Linux. It’s incredible. And Task Manager is an example of a piece of software. Just how many people have used that over the years, and how many times? It’s crazy. It’s probably, is it billions? Billions have used that.
Dave Plummer
Yeah, two billion a month or something.
Yeah, two billion a month or something.
Lex Fridman
Two billion?
Two billion?
Dave Plummer
Something like that. I’ve seen the metrics, and it’s up there.
Something like that. I’ve seen the metrics, and it’s up there.
Lex Fridman
Oh, crazy to think.
Oh, crazy to think.
Dave Plummer
It is. What I love about it, though, and I’m sure you’ve had this experience, where sometimes you design a piece of software, and it’s complex, and you get it working in your head, and you get the plumbing working, and you know how it’s going to run and flow, and then eventually you write the code, and the code does that thing that you had pictured in your head. And now there are billions of copies of that thing that I had in my head running on billions of people and machines, and that in itself is really cool to me. It’s not a vanity thing so much as I’m impressed by it, I guess.
It is. What I love about it, though, and I’m sure you’ve had this experience, where sometimes you design a piece of software, and it’s complex, and you get it working in your head, and you get the plumbing working, and you know how it’s going to run and flow, and then eventually you write the code, and the code does that thing that you had pictured in your head. And now there are billions of copies of that thing that I had in my head running on billions of people and machines, and that in itself is really cool to me. It’s not a vanity thing so much as I’m impressed by it, I guess.
Lex Fridman
How’s your programming evolved over the years?
How’s your programming evolved over the years?
Dave Plummer
I take a lot more care with complexity these days. So it used to be you would write code and just keep writing code, writing code, and then at some point, go back and clean it up. Well, I write the other way now. I try to write really clean initial skeletal code and then flesh it out because I have been involved in too many projects of my own and of other people’s making where things get so messed up that they’re just not fixable. And so sometimes the work you put in upfront pays off, you know?
I take a lot more care with complexity these days. So it used to be you would write code and just keep writing code, writing code, and then at some point, go back and clean it up. Well, I write the other way now. I try to write really clean initial skeletal code and then flesh it out because I have been involved in too many projects of my own and of other people’s making where things get so messed up that they’re just not fixable. And so sometimes the work you put in upfront pays off, you know?
Lex Fridman
What programming languages have you used over the years? What’s been your main go-tos?
What programming languages have you used over the years? What’s been your main go-tos?
Dave Plummer
For me, it’s been C++ and assembly language.
For me, it’s been C++ and assembly language.
Lex Fridman
And still to this day, C++ is really what you lean on?
And still to this day, C++ is really what you lean on?
Dave Plummer
Yeah, right now I’m 100% Lua and Python, but that’s just a side project I’m working on.
Yeah, right now I’m 100% Lua and Python, but that’s just a side project I’m working on.
Lex Fridman
Can you speak to the Lua and the Python detour that you took, and what do you love about C++?
Can you speak to the Lua and the Python detour that you took, and what do you love about C++?
Dave Plummer
What I’m doing is I wanted to build an AI to play the game Tempest. That’s the old Atari game, Tempest. This is a game that I actually hold the world record on.
What I’m doing is I wanted to build an AI to play the game Tempest. That’s the old Atari game, Tempest. This is a game that I actually hold the world record on.
Lex Fridman
Can you take me to this Atari game, Tempest? Okay, Atari Tempest. What kind of game is this?
Can you take me to this Atari game, Tempest? Okay, Atari Tempest. What kind of game is this?
Dave Plummer
So it’s a 3D vector game from 1980.
So it’s a 3D vector game from 1980.
Lex Fridman
Okay.
Okay.
Dave Plummer
And it’s a very complex game. You’ve got full 360 degrees of motion, you have eight shots on the screen, there are like 11 enemies, there are spikes. So it’s a very complex game. It’s not like trying to do Pong or something. And what I wound up doing was first taking the ROMs out of the machine and reverse engineering the code. So I got a sense of where all the code in Tempest lives and what it does, where the zero-page variables are, where things live. And yeah, there’s one.
And it’s a very complex game. You’ve got full 360 degrees of motion, you have eight shots on the screen, there are like 11 enemies, there are spikes. So it’s a very complex game. It’s not like trying to do Pong or something. And what I wound up doing was first taking the ROMs out of the machine and reverse engineering the code. So I got a sense of where all the code in Tempest lives and what it does, where the zero-page variables are, where things live. And yeah, there’s one.
Lex Fridman
So, oh, wow. That’s a very geometric… Okay, what can you explain to me about the gameplay?
So, oh, wow. That’s a very geometric… Okay, what can you explain to me about the gameplay?
Dave Plummer
Yeah, that’s me playing the game right there.
Yeah, that’s me playing the game right there.
Lex Fridman
This is literally you playing?
This is literally you playing?
Dave Plummer
This is me. Dave is the high score, you’ll see, in the top center there.
This is me. Dave is the high score, you’ll see, in the top center there.
Lex Fridman
Can you explain to me what I’m looking at?
Can you explain to me what I’m looking at?
Dave Plummer
Well, it’s a 3D geometric world. It’s basically 3D Space Invaders wrapped into a shape, and the enemies descend from the center of the tube towards the outside, and they all have different behaviors.
Well, it’s a 3D geometric world. It’s basically 3D Space Invaders wrapped into a shape, and the enemies descend from the center of the tube towards the outside, and they all have different behaviors.
Lex Fridman
Wow.
Wow.
Dave Plummer
So long story short, it’s a fairly complicated game to play well, and I wanted to see if I could get an AI to do it. So once I had figured out where all the interesting parts of the game lived in memory, I added them as parameters and built a Lua app to extract everything from the game’s memory as it’s running and puts them together as parameters, which sends it to the Python side over a socket, and then the Python side does RL learning. I’m using a dueling Deep-Q, and I believe… Two with two head and tail, and they chase each other and it can play up to about level 36 now, which is way better than most humans. But that’s level 96, so it’s got a ways to go yet.
So long story short, it’s a fairly complicated game to play well, and I wanted to see if I could get an AI to do it. So once I had figured out where all the interesting parts of the game lived in memory, I added them as parameters and built a Lua app to extract everything from the game’s memory as it’s running and puts them together as parameters, which sends it to the Python side over a socket, and then the Python side does RL learning. I’m using a dueling Deep-Q, and I believe… Two with two head and tail, and they chase each other and it can play up to about level 36 now, which is way better than most humans. But that’s level 96, so it’s got a ways to go yet.
Lex Fridman
And you’re the red thing shooting?
And you’re the red thing shooting?
Dave Plummer
Yes.
Yes.
Lex Fridman
You’re controlling the red thing that’s shooting? Okay. What are the options? You can just move clockwise or counterclockwise and then you could shoot.
You’re controlling the red thing that’s shooting? Okay. What are the options? You can just move clockwise or counterclockwise and then you could shoot.
Dave Plummer
Yeah, so you have a rotating knob- …which is an optical spinner, and you have a fire button and a super zapper for emergencies. But that’s it. Fire and rotate, basically.
Yeah, so you have a rotating knob- …which is an optical spinner, and you have a fire button and a super zapper for emergencies. But that’s it. Fire and rotate, basically.
Lex Fridman
All right, let’s get back to your favorite C++. What do you love about C++? Why have you stayed with it for all these years?
All right, let’s get back to your favorite C++. What do you love about C++? Why have you stayed with it for all these years?
Dave Plummer
Because it allows me to encapsulate my favorite C code in classes. I’m not a big-
Because it allows me to encapsulate my favorite C code in classes. I’m not a big-
Lex Fridman
You’re really a C guy.
You’re really a C guy.
Dave Plummer
Well, I actually-
Well, I actually-
Lex Fridman
Okay, I got you.
Okay, I got you.
Dave Plummer
Yeah, I’m really a C guy. Although I write two kinds of C++. I write really modern C++ 20 using no pointers, no strings, or no character strings, so there are… you know, it’s basically as safe as Rust as far as I’m concerned. Or I write C with classes, which is standard C, but, you know, with polymorphism and encapsulation. That’s most of what my code is, but I try to do both.
Yeah, I’m really a C guy. Although I write two kinds of C++. I write really modern C++ 20 using no pointers, no strings, or no character strings, so there are… you know, it’s basically as safe as Rust as far as I’m concerned. Or I write C with classes, which is standard C, but, you know, with polymorphism and encapsulation. That’s most of what my code is, but I try to do both.
Scariest time of Dave’s life
Lex Fridman
Let me ask you about the whole stretch of time that we kind of skipped over. You built a lot of software over the years after Microsoft, on the side while at Microsoft and afterwards, a lot of successful pieces of software. One of your companies was Software Online, and it got into trouble for nagging users too much, I guess-
Let me ask you about the whole stretch of time that we kind of skipped over. You built a lot of software over the years after Microsoft, on the side while at Microsoft and afterwards, a lot of successful pieces of software. One of your companies was Software Online, and it got into trouble for nagging users too much, I guess-
Dave Plummer
Yep.
Yep.
Lex Fridman
… to upgrade. That’s what I saw. What was all that about and what did you learn from that experience?
… to upgrade. That’s what I saw. What was all that about and what did you learn from that experience?
Dave Plummer
That was… Other than, like, family health scares, you know, when kids are sick, that was the scariest time of my life. And the period leading up to it was one of the most invigorating and exciting, because what had happened was while I was at Microsoft, I had written all these shareware utilities and I was selling them on the side and sold one to Microsoft, as we talked about, and they started to do really well. And then I discovered banner advertising online. So I signed up with my credit card for a site, I think it was called Fast Click, and you could say, “I will pay this much for a banner ad impression. Here’s my banner.” And it would rotate it in. And I didn’t set a cap on it. I came back on Monday and I saw I had spent like $10,000 in banner ads.
That was… Other than, like, family health scares, you know, when kids are sick, that was the scariest time of my life. And the period leading up to it was one of the most invigorating and exciting, because what had happened was while I was at Microsoft, I had written all these shareware utilities and I was selling them on the side and sold one to Microsoft, as we talked about, and they started to do really well. And then I discovered banner advertising online. So I signed up with my credit card for a site, I think it was called Fast Click, and you could say, “I will pay this much for a banner ad impression. Here’s my banner.” And it would rotate it in. And I didn’t set a cap on it. I came back on Monday and I saw I had spent like $10,000 in banner ads.
Dave Plummer
I was like, “Holy crap. How am I going to explain this to my wife? This is a bug, it’s a mistake, it was my fault.” And I looked at the sales and it had made like $38,000 worth of sales. And I was like, “Holy cow. So all I have to do is scale that at some point,” and basically did that for the next several years. And the reason we got in trouble was the AG came in and they had… well, I was blown away because they had like 12 court claims of action and 10 of them were outrageous, which to me as a person with autism, I couldn’t get past. It’s like, I know these 10 things are absolutely not true. Why are we even here talking about them? And then all they care are the two things that might be true.
I was like, “Holy crap. How am I going to explain this to my wife? This is a bug, it’s a mistake, it was my fault.” And I looked at the sales and it had made like $38,000 worth of sales. And I was like, “Holy cow. So all I have to do is scale that at some point,” and basically did that for the next several years. And the reason we got in trouble was the AG came in and they had… well, I was blown away because they had like 12 court claims of action and 10 of them were outrageous, which to me as a person with autism, I couldn’t get past. It’s like, I know these 10 things are absolutely not true. Why are we even here talking about them? And then all they care are the two things that might be true.
Dave Plummer
And the two things that might be true were that it was a 30-day trial version, and after your 30 days were up, it would then, if you continued to run it and not buy it or uninstall it, it would remind you once a day. Not like every 10 minutes, but once a day or every time you booted your computer, but most once a day. And the AG contended that was too often; it amounted to spam. And so we agreed with them to limit it to once a week, I believe. And, you know, there had to be a button to just uninstall with one click. So we did those kinds of things. The other one was, in those days, when somebody bought a piece of software, even if they bought it online and got a download, they fully expected there would be media showing up at their house.
And the two things that might be true were that it was a 30-day trial version, and after your 30 days were up, it would then, if you continued to run it and not buy it or uninstall it, it would remind you once a day. Not like every 10 minutes, but once a day or every time you booted your computer, but most once a day. And the AG contended that was too often; it amounted to spam. And so we agreed with them to limit it to once a week, I believe. And, you know, there had to be a button to just uninstall with one click. So we did those kinds of things. The other one was, in those days, when somebody bought a piece of software, even if they bought it online and got a download, they fully expected there would be media showing up at their house.
Dave Plummer
So in the year 2001, which were 2001-2003 we’re talking about, if you bought software, there was an expectation that a disc would show up. And so we made that the default, was to fulfill by disc and it was $3.95 or $4.95 extra, and it was very obvious, but it was a checkbox and it was turned on to ship the disc to your house. Because we found if we didn’t do that, we got all these calls, people would wait, they’d order, two weeks later call, “Where’s my disc?” And we’d look, “Oh, you didn’t order a disc.” “Well, cancel it all.
So in the year 2001, which were 2001-2003 we’re talking about, if you bought software, there was an expectation that a disc would show up. And so we made that the default, was to fulfill by disc and it was $3.95 or $4.95 extra, and it was very obvious, but it was a checkbox and it was turned on to ship the disc to your house. Because we found if we didn’t do that, we got all these calls, people would wait, they’d order, two weeks later call, “Where’s my disc?” And we’d look, “Oh, you didn’t order a disc.” “Well, cancel it all.
Dave Plummer
I don’t want it because I’m not waiting for it.” And so we got a lot of returns and we didn’t include the disc, and so we decided to include the disc, but that is an a priori violation of negative affirmation billing in Washington State because you’re giving them a default higher purchase price.
I don’t want it because I’m not waiting for it.” And so we got a lot of returns and we didn’t include the disc, and so we decided to include the disc, but that is an a priori violation of negative affirmation billing in Washington State because you’re giving them a default higher purchase price.
Lex Fridman
What about the software user relationship? It’s interesting, like, how often to annoy the user with a thing. Right? If you never mention anything, they might never discover something they actually want. But if you mention it too much, then they can get annoyed.
What about the software user relationship? It’s interesting, like, how often to annoy the user with a thing. Right? If you never mention anything, they might never discover something they actually want. But if you mention it too much, then they can get annoyed.
Dave Plummer
Yeah. And what you don’t want is you don’t want them to have to do it or buy it or do something to get rid of it.
Yeah. And what you don’t want is you don’t want them to have to do it or buy it or do something to get rid of it.
Lex Fridman
That’s one of the things that bothers me with… I think Windows does that a little bit still to this day, where it bothers me by asking me certain questions, like, “Do you want this?” For example, I really don’t like to use my Microsoft account to log into Windows. I think now it’s basically required. I think there’s just no way around it. But they make it so difficult to not do that. It’s almost like they think they can just trick me into… It really does feel like I’m getting tricked into not doing what I want to do.
That’s one of the things that bothers me with… I think Windows does that a little bit still to this day, where it bothers me by asking me certain questions, like, “Do you want this?” For example, I really don’t like to use my Microsoft account to log into Windows. I think now it’s basically required. I think there’s just no way around it. But they make it so difficult to not do that. It’s almost like they think they can just trick me into… It really does feel like I’m getting tricked into not doing what I want to do.
Lex Fridman
It’s… I have to, like, think, “Okay, I need to click skip,” and then it’ll do something, “Are you sure?” Like, I have to use too much of my brain to do the thing I need… As an interface, you know what I’m trying to do. You’re trying to trick me into not doing the thing I want to do. And what I hate about that is, like… It’s probably effective, sure, for converting people, but it’s really not good long-term for taking care of the interests of the user.
It’s… I have to, like, think, “Okay, I need to click skip,” and then it’ll do something, “Are you sure?” Like, I have to use too much of my brain to do the thing I need… As an interface, you know what I’m trying to do. You’re trying to trick me into not doing the thing I want to do. And what I hate about that is, like… It’s probably effective, sure, for converting people, but it’s really not good long-term for taking care of the interests of the user.
Dave Plummer
Yeah, the one that really throws me is the user recommended settings. So I just did a Windows upgrade, I went through the steps, and, you know, I’m going through this new dialog or wizard, and “use recommended settings” sounds like the thing you should do, but I’m pretty sure that resets you to using the Edge browser and… …And all this other stuff. So yeah, recommended by them, but not recommended for me. And that’s the difficulty.
Yeah, the one that really throws me is the user recommended settings. So I just did a Windows upgrade, I went through the steps, and, you know, I’m going through this new dialog or wizard, and “use recommended settings” sounds like the thing you should do, but I’m pretty sure that resets you to using the Edge browser and… …And all this other stuff. So yeah, recommended by them, but not recommended for me. And that’s the difficulty.
Lex Fridman
That’s a really good example. What effect do you think that does in resetting the default browser to Edge? Do you think you’re going to really earn the loyalty of a user if you do that? Don’t you think that there are actually… What you’re going to create… You’re going to create some passive loyalty from some user base, so on the metrics, it might actually look like you’ve increased the number of Edge users, but really, it’s that reputation hit you take over time where it just forms where the Edge is the thing that you can’t quite trust. Unfairly, because I think Edge is a really great browser, but just this unpleasant feeling. I don’t know what that is, and…
That’s a really good example. What effect do you think that does in resetting the default browser to Edge? Do you think you’re going to really earn the loyalty of a user if you do that? Don’t you think that there are actually… What you’re going to create… You’re going to create some passive loyalty from some user base, so on the metrics, it might actually look like you’ve increased the number of Edge users, but really, it’s that reputation hit you take over time where it just forms where the Edge is the thing that you can’t quite trust. Unfairly, because I think Edge is a really great browser, but just this unpleasant feeling. I don’t know what that is, and…
Dave Plummer
Well, you don’t want your operating system to be an adversary, right? And sometimes Windows can feel adversarial. Like, it doesn’t have your best interests at heart, and that bugs me to a certain extent.
Well, you don’t want your operating system to be an adversary, right? And sometimes Windows can feel adversarial. Like, it doesn’t have your best interests at heart, and that bugs me to a certain extent.
Lex Fridman
I mean, we have this feeling, I think we just have general distrust when somebody is super nice to you and is basically selling something. There’s a certain aura about that kind of interaction. And when an operating system is interacting with you in that way, it’s like…
I mean, we have this feeling, I think we just have general distrust when somebody is super nice to you and is basically selling something. There’s a certain aura about that kind of interaction. And when an operating system is interacting with you in that way, it’s like…
Dave Plummer
Yeah, I would much rather pay $199 for Windows Pro per year, or 20 bucks a month, or whatever the fee schedule would be, and not be upsold any further and not have my data monetized, and those kinds of things, so…
Yeah, I would much rather pay $199 for Windows Pro per year, or 20 bucks a month, or whatever the fee schedule would be, and not be upsold any further and not have my data monetized, and those kinds of things, so…
Lex Fridman
Did you learn about finding the right balance from that?
Did you learn about finding the right balance from that?
Dave Plummer
Yeah, I mean, I’m way more self-aware now. There are things I would do much differently, particularly in terms of the advertising. I always figured… There’s a guy named David Ogilvy, and he did this ad long ago for the Volkswagen Beetle where it had a picture of a Beetle, black and white, and it just said, “Lemon,” and there was a block of text below it. So it’s clickbait-y and then informational, and I always tried to follow that pattern. But there are three ways to sell something, I think, and you can use sex, fear, or greed. Sex doesn’t work really well for software. Fear works well for antivirus and stuff, but not so much for optimization and make your computer faster utilities.
Yeah, I mean, I’m way more self-aware now. There are things I would do much differently, particularly in terms of the advertising. I always figured… There’s a guy named David Ogilvy, and he did this ad long ago for the Volkswagen Beetle where it had a picture of a Beetle, black and white, and it just said, “Lemon,” and there was a block of text below it. So it’s clickbait-y and then informational, and I always tried to follow that pattern. But there are three ways to sell something, I think, and you can use sex, fear, or greed. Sex doesn’t work really well for software. Fear works well for antivirus and stuff, but not so much for optimization and make your computer faster utilities.
Dave Plummer
And so I always tried to cater to the greed aspect. You know, make your computer faster, get more RAM available, whatever the value proposition is. But I realize now that I’m looking at that with my knowledge, and as an autistic person, I now have an appreciation that other people are going to look at it with their background knowledge and may conclude something different. So I might be scaring people where I was just trying to incentivize or get their greed instinct going. So I’d be more sensitive about that kind of thing today.
And so I always tried to cater to the greed aspect. You know, make your computer faster, get more RAM available, whatever the value proposition is. But I realize now that I’m looking at that with my knowledge, and as an autistic person, I now have an appreciation that other people are going to look at it with their background knowledge and may conclude something different. So I might be scaring people where I was just trying to incentivize or get their greed instinct going. So I’d be more sensitive about that kind of thing today.
Best Windows version
Lex Fridman
Ridiculous question, but what do you think are the top three Windows operating systems? The different versions?
Ridiculous question, but what do you think are the top three Windows operating systems? The different versions?
Dave Plummer
I’m a fan of Windows 2000 server. That’s
I’m a fan of Windows 2000 server. That’s
Lex Fridman
Really? Okay. … Wait, wait, pl-
Really? Okay. … Wait, wait, pl-
Dave Plummer
That’s what I ran my business on and I ran my brother’s business. We set up multiple salons all VPNed to one another and using the SQL Server and…
That’s what I ran my business on and I ran my brother’s business. We set up multiple salons all VPNed to one another and using the SQL Server and…
Lex Fridman
I don’t know if I ever got to experience Windows 2000 server, so when was XP out?
I don’t know if I ever got to experience Windows 2000 server, so when was XP out?
Dave Plummer
2001.
2001.
Lex Fridman
What was before XP?
What was before XP?
Dave Plummer
2000.
2000.
Lex Fridman
2000. Was that good?
2000. Was that good?
Dave Plummer
Yeah, I liked it. I mean, it doesn’t have the visual flash that came with XP, but as a system, and especially as a server operating system, it was great for the day.
Yeah, I liked it. I mean, it doesn’t have the visual flash that came with XP, but as a system, and especially as a server operating system, it was great for the day.
Lex Fridman
But then XP was, hmm, I would say probably from a completeness perspective and impact and how long it lasted, it was probably the greatest Windows for consumers, the operating system.
But then XP was, hmm, I would say probably from a completeness perspective and impact and how long it lasted, it was probably the greatest Windows for consumers, the operating system.
Dave Plummer
I would think so. It’s certainly got the longevity for it. There are people who still run it. I mean, I’d still run it on stuff if you could get security updates ’cause it does 98% of what I need Windows to do, but…
I would think so. It’s certainly got the longevity for it. There are people who still run it. I mean, I’d still run it on stuff if you could get security updates ’cause it does 98% of what I need Windows to do, but…
Lex Fridman
Yeah, that was incredible. I mean, so Windows 95, I’ll probably put Windows XP as the number one for me and then Windows 95 two.
Yeah, that was incredible. I mean, so Windows 95, I’ll probably put Windows XP as the number one for me and then Windows 95 two.
Dave Plummer
What’s your metric? Personal preference or industry impact or…
What’s your metric? Personal preference or industry impact or…
Lex Fridman
Industry impact, stability, just there’s certain, like, just like with programming, you have code smell. Just, like, how well all the features were orchestrated together, how there’s a design philosophy that permeated the whole thing and was consistent. Not too many features, not dumbed down too much.
Industry impact, stability, just there’s certain, like, just like with programming, you have code smell. Just, like, how well all the features were orchestrated together, how there’s a design philosophy that permeated the whole thing and was consistent. Not too many features, not dumbed down too much.
Dave Plummer
Right.
Right.
Lex Fridman
But not overcomplicated. How often it crashes to blue screen. All of those things.
But not overcomplicated. How often it crashes to blue screen. All of those things.
Dave Plummer
I don’t know if it’s a very apt description, but I think of it as crisp. So there’s not a lot of rough edges. It does what it does, does it snappy and…
I don’t know if it’s a very apt description, but I think of it as crisp. So there’s not a lot of rough edges. It does what it does, does it snappy and…
Slot machines
Lex Fridman
You said you play slot machines, and given that you love hardware and software, you’re the perfect person to ask, how do slot machines work?
You said you play slot machines, and given that you love hardware and software, you’re the perfect person to ask, how do slot machines work?
Dave Plummer
Well, I’m happy to ruin them for you.
Well, I’m happy to ruin them for you.
Lex Fridman
Okay.
Okay.
Dave Plummer
So- It’s ironic to me that I play slot machines because I know it’s a losing bet overall, but there’s a whole dopamine feast there of bright lights and high contrast colors that I enjoy. So I do play them. But what happens is, internally, there’s basically a black box mechanism that does nothing more than generate the next random number and what the outcome is in terms of probability and payout. And then the game says, “I’ve got to make up a movie to go along with that.” And maybe it’s three bars or whatever it is, but there’s no correlation. It’s not spinning the reels, seeing where they land, and looking that up to see what you won. It’s completely the other direction. It determines whether or not or if you won and then makes something up to fit that scenario.
So- It’s ironic to me that I play slot machines because I know it’s a losing bet overall, but there’s a whole dopamine feast there of bright lights and high contrast colors that I enjoy. So I do play them. But what happens is, internally, there’s basically a black box mechanism that does nothing more than generate the next random number and what the outcome is in terms of probability and payout. And then the game says, “I’ve got to make up a movie to go along with that.” And maybe it’s three bars or whatever it is, but there’s no correlation. It’s not spinning the reels, seeing where they land, and looking that up to see what you won. It’s completely the other direction. It determines whether or not or if you won and then makes something up to fit that scenario.
Lex Fridman
That, that indeed is ruining it for everyone.
That, that indeed is ruining it for everyone.
Dave Plummer
A little bit.
A little bit.
Lex Fridman
What kind of code runs them?
What kind of code runs them?
Dave Plummer
I don’t really know. I tried to get down and get inside access to one, and it was very hard. They don’t want to tell you a lot about them, and I’m sure it’s not that deep of a secret, but… They’re all basic Windows PCs, but they’re basic Windows PCs on top of a very secure enclave of some kind that I don’t know a lot about.
I don’t really know. I tried to get down and get inside access to one, and it was very hard. They don’t want to tell you a lot about them, and I’m sure it’s not that deep of a secret, but… They’re all basic Windows PCs, but they’re basic Windows PCs on top of a very secure enclave of some kind that I don’t know a lot about.
Lex Fridman
Yeah, it has to be extremely secure, right?
Yeah, it has to be extremely secure, right?
Dave Plummer
Yeah. Well, in the 70s or 80s, there was a tech in Vegas who went around and he was burning his own ROMs for the slot machines. With a backdoor in them, so when he serviced the machine, he would just put his ROM in.
Yeah. Well, in the 70s or 80s, there was a tech in Vegas who went around and he was burning his own ROMs for the slot machines. With a backdoor in them, so when he serviced the machine, he would just put his ROM in.
Lex Fridman
Nice.
Nice.
Dave Plummer
And he’d come back six months later and…
And he’d come back six months later and…
Lex Fridman
Nice.
Nice.
Dave Plummer
Invoke the backdoor and…
Invoke the backdoor and…
Lex Fridman
I love humans so much. Anyway, do you have other favorite kinds of systems like that?
I love humans so much. Anyway, do you have other favorite kinds of systems like that?
Dave Plummer
I like a lot of old hardware. I restore cars, so I do a lot of 1960s muscle cars, cars and trucks.
I like a lot of old hardware. I restore cars, so I do a lot of 1960s muscle cars, cars and trucks.
Lex Fridman
Nice.
Nice.
Dave Plummer
And old computers, so I restore PDP-11s. It’s been my fascination and my special interest for the last six months or so, and I’ve built a number of those.
And old computers, so I restore PDP-11s. It’s been my fascination and my special interest for the last six months or so, and I’ve built a number of those.
Lex Fridman
Yeah, I’ve seen you posting videos about it, the PDP-11/83. What’s that whole project?
Yeah, I’ve seen you posting videos about it, the PDP-11/83. What’s that whole project?
Dave Plummer
So basically, what it is, is I had built a number of PDP-11s. And so over the years, I had acquired all these parts and I decided, “Well, let me build the best PDP-11 that I can.” And so it was kind of a quest to, just like you try to max out a PC, I tried to max out a PDP-11. So it’s got four megabytes of memory, which would be massive in the day. And yeah, that’s it there. And it’s got lots of blinking lights, and I had to rewrite the BSD kernel to make the lights work and…
So basically, what it is, is I had built a number of PDP-11s. And so over the years, I had acquired all these parts and I decided, “Well, let me build the best PDP-11 that I can.” And so it was kind of a quest to, just like you try to max out a PC, I tried to max out a PDP-11. So it’s got four megabytes of memory, which would be massive in the day. And yeah, that’s it there. And it’s got lots of blinking lights, and I had to rewrite the BSD kernel to make the lights work and…
Lex Fridman
What are we looking at here? What’s…
What are we looking at here? What’s…
Dave Plummer
So the very top is a PDP-11/70 control panel, which we can largely ignore, and then there’s two chassis below that. One has-
So the very top is a PDP-11/70 control panel, which we can largely ignore, and then there’s two chassis below that. One has-
Lex Fridman
What are the different knobs? Sorry to ask dumb questions here.
What are the different knobs? Sorry to ask dumb questions here.
Dave Plummer
The knobs, they, uh- … control what view you get of the LEDs.
The knobs, they, uh- … control what view you get of the LEDs.
Lex Fridman
Oh.
Oh.
Dave Plummer
So normally, you see the data bus and you can see the address bus. And you can pause the machine, you can edit the add- address on the bus, and you can deposit stuff into memory with the switches.
So normally, you see the data bus and you can see the address bus. And you can pause the machine, you can edit the add- address on the bus, and you can deposit stuff into memory with the switches.
Lex Fridman
Man, the haptic plus the LEDs. That’s what you imagine a computer to be.
Man, the haptic plus the LEDs. That’s what you imagine a computer to be.
Dave Plummer
Yeah.
Yeah.
Lex Fridman
That’s so cool. That’s so cool. And then these are what? What are these? These are DU1, DU2?
That’s so cool. That’s so cool. And then these are what? What are these? These are DU1, DU2?
Dave Plummer
Yeah. It’s a weird floppy drive. It’s a dual floppy drive with one stepper motor. So both heads seek together like Siamese twins.
Yeah. It’s a weird floppy drive. It’s a dual floppy drive with one stepper motor. So both heads seek together like Siamese twins.
Lex Fridman
Okay. So what, what kind of stuff are you doing with this? What are you- … are you trying to restore them?
Okay. So what, what kind of stuff are you doing with this? What are you- … are you trying to restore them?
Dave Plummer
Yeah. So I restore them and-
Yeah. So I restore them and-
Lex Fridman
Does it actually run? Oh, all the blinking lights are real?
Does it actually run? Oh, all the blinking lights are real?
Dave Plummer
Yeah, it’s all real.
Yeah, it’s all real.
Lex Fridman
Wow.
Wow.
Dave Plummer
Then I had to rebuild the kernel and all that, so I had to learn the BSD kernel. I’m pretty familiar with it now to get… ‘Cause you can’t just add a device driver, right? You’ve got to rebuild the kernel to add support for whatever device. So you add a new disk controller. It’s time to build the kernel, so you gotta go find the source and find the code and…
Then I had to rebuild the kernel and all that, so I had to learn the BSD kernel. I’m pretty familiar with it now to get… ‘Cause you can’t just add a device driver, right? You’ve got to rebuild the kernel to add support for whatever device. So you add a new disk controller. It’s time to build the kernel, so you gotta go find the source and find the code and…
Autism and ADHD
Lex Fridman
And you can run code on this? You’ve written a couple books on autism. Being autistic yourself, I was wondering if you could tell me about, like, fundamental differences about the mind of a person with autism versus a, let’s say, a neurotypical individual.
And you can run code on this? You’ve written a couple books on autism. Being autistic yourself, I was wondering if you could tell me about, like, fundamental differences about the mind of a person with autism versus a, let’s say, a neurotypical individual.
Dave Plummer
Well, the fundamental theory of thought for autism is called monotropism. And basically what that means is that my brain does one thing and does it very intensely, and then when it’s done I can move on and do something else. But I’m not a multitasker. I’m a serial single-tasker by any stretch. Autism usually brings with it sensory sensitivities and repetitive behaviors, behavioral issues that compound it. And if they rise to the level where an individual can’t moderate or accommodate them in their life, it becomes a disorder. And that’s probably one to two percent of the population.
Well, the fundamental theory of thought for autism is called monotropism. And basically what that means is that my brain does one thing and does it very intensely, and then when it’s done I can move on and do something else. But I’m not a multitasker. I’m a serial single-tasker by any stretch. Autism usually brings with it sensory sensitivities and repetitive behaviors, behavioral issues that compound it. And if they rise to the level where an individual can’t moderate or accommodate them in their life, it becomes a disorder. And that’s probably one to two percent of the population.
Lex Fridman
What’s the biggest benefit of life with autism?
What’s the biggest benefit of life with autism?
Dave Plummer
I can bring to bear an incredible amount of focus and dedication on a particular task. It has to be something I love, it has to be something that’s rewarding, it has to be something I can make progress on, and there have to be all these things that are true about it. And it could be like a kid playing with trains. I get that same feeling.
I can bring to bear an incredible amount of focus and dedication on a particular task. It has to be something I love, it has to be something that’s rewarding, it has to be something I can make progress on, and there have to be all these things that are true about it. And it could be like a kid playing with trains. I get that same feeling.
Lex Fridman
That said, you also said that you struggle with ADHD.
That said, you also said that you struggle with ADHD.
Dave Plummer
Yeah, a fair bit.
Yeah, a fair bit.
Lex Fridman
So that’s part of the component, like, maintaining the focus?
So that’s part of the component, like, maintaining the focus?
Dave Plummer
Actually, acquiring the focus is the issue. So I’m very easily distracted. I fall asleep with noise-canceling headphones or I can’t fall asleep, that kind of thing. But once I get locked in, I’m very hard to distract. So it’s kind of a paradox.
Actually, acquiring the focus is the issue. So I’m very easily distracted. I fall asleep with noise-canceling headphones or I can’t fall asleep, that kind of thing. But once I get locked in, I’m very hard to distract. So it’s kind of a paradox.
Lex Fridman
Oh, that’s fascinating.
Oh, that’s fascinating.
Dave Plummer
It’s hard to get into that state.
It’s hard to get into that state.
Lex Fridman
Okay. What’s the biggest challenge of life with an autistic mind?
Okay. What’s the biggest challenge of life with an autistic mind?
Dave Plummer
That I don’t know what anybody else is thinking. So I know what I would think about this interaction if I was in your position and I was you. And that’s the best I can do. But I think most neurotypical people have a sense of, “Well, Lex probably feels this way or that way ’cause he’s acting this way and his reactions are this and his facial expressions say this and…” That’s all kind of lost on me. So I run a little proxy NPC game for everybody I deal with.
That I don’t know what anybody else is thinking. So I know what I would think about this interaction if I was in your position and I was you. And that’s the best I can do. But I think most neurotypical people have a sense of, “Well, Lex probably feels this way or that way ’cause he’s acting this way and his reactions are this and his facial expressions say this and…” That’s all kind of lost on me. So I run a little proxy NPC game for everybody I deal with.
Lex Fridman
So I guess that makes social interaction a little bit complicated.
So I guess that makes social interaction a little bit complicated.
Dave Plummer
It can be, yeah. Telephone is especially hard because I rely on a lot of other cues, and when somebody is just on the phone and I just have their voice, there’s so much that’s implied between people that I miss. And so I’m much better on FaceTime, where if somebody makes a joke, they might smile after- Whereas on the phone, I don’t know if you’re being sarcastic or serious and that kind of thing, so…
It can be, yeah. Telephone is especially hard because I rely on a lot of other cues, and when somebody is just on the phone and I just have their voice, there’s so much that’s implied between people that I miss. And so I’m much better on FaceTime, where if somebody makes a joke, they might smile after- Whereas on the phone, I don’t know if you’re being sarcastic or serious and that kind of thing, so…
Lex Fridman
So that’s probably gotten you into trouble over the years a bit.
So that’s probably gotten you into trouble over the years a bit.
Dave Plummer
Yeah. There’s lots of times with my wife, too, where… Well, there’s a certain literalism that comes with autism. And we spent years where she would say something and I’d say, “But that doesn’t make sense.” She’d say, “You know what I mean.” I’m like, “No, I know what you said and I’m not being just combative here. I literally only know what you said,” and I don’t have that. And I remember we’ve been in meetings with people, and you know, if there’s three or four people in the meeting and I’m the only autistic person, I’ll tell them that they’ve got this communication loop going on and I have to… You gotta tell me what’s going on because I really don’t know what’s being said here. So…
Yeah. There’s lots of times with my wife, too, where… Well, there’s a certain literalism that comes with autism. And we spent years where she would say something and I’d say, “But that doesn’t make sense.” She’d say, “You know what I mean.” I’m like, “No, I know what you said and I’m not being just combative here. I literally only know what you said,” and I don’t have that. And I remember we’ve been in meetings with people, and you know, if there’s three or four people in the meeting and I’m the only autistic person, I’ll tell them that they’ve got this communication loop going on and I have to… You gotta tell me what’s going on because I really don’t know what’s being said here. So…
Lex Fridman
You told me related to this that there was an early, somewhat awkward encounter with Bill Gates. Can you share the story of that interaction and how autism comes into play here?
You told me related to this that there was an early, somewhat awkward encounter with Bill Gates. Can you share the story of that interaction and how autism comes into play here?
Dave Plummer
Yeah. My very first summer at Microsoft when I got the internship, Bill had all the interns over. I guess it was 20 or maybe 25 of us, that got hired that year over to his house for burgers and beers and just chat in the backyard. And of course, it’s still Bill Gates, and he’s a big enough deal even then that you’re a little nervous. And so my manager, Ben, who was sort of my mentor at the time, took me over to introduce me to Bill because he knew him. And he’s explaining, “This is Dave. He’s our intern from Canada. And in the space of four months, he’s done this feature and just copy and smart drive,” and he listed off all the stuff I was doing.
Yeah. My very first summer at Microsoft when I got the internship, Bill had all the interns over. I guess it was 20 or maybe 25 of us, that got hired that year over to his house for burgers and beers and just chat in the backyard. And of course, it’s still Bill Gates, and he’s a big enough deal even then that you’re a little nervous. And so my manager, Ben, who was sort of my mentor at the time, took me over to introduce me to Bill because he knew him. And he’s explaining, “This is Dave. He’s our intern from Canada. And in the space of four months, he’s done this feature and just copy and smart drive,” and he listed off all the stuff I was doing.
Dave Plummer
But I stopped because I’m like, “Well, actually, it was three months.” And I had to interrupt them, and they both kind of, “What?” And they looked at each other, and I realized that was the wrong time to… …Correct a guy. But…
But I stopped because I’m like, “Well, actually, it was three months.” And I had to interrupt them, and they both kind of, “What?” And they looked at each other, and I realized that was the wrong time to… …Correct a guy. But…
Lex Fridman
Yeah. So you, like, little inaccuracies?
Yeah. So you, like, little inaccuracies?
Dave Plummer
Oh, drive me crazy.
Oh, drive me crazy.
Lex Fridman
And then you, of course you don’t… The impact that might have on a casual social interaction, it’s not trivial for you to be aware of that.
And then you, of course you don’t… The impact that might have on a casual social interaction, it’s not trivial for you to be aware of that.
Dave Plummer
Yeah. I’m much better than I used to be. Before, I didn’t know and I didn’t know how injecting a correction meaninglessly into a conversation could impact or make the other person feel. Now I have a better sense of it, but…
Yeah. I’m much better than I used to be. Before, I didn’t know and I didn’t know how injecting a correction meaninglessly into a conversation could impact or make the other person feel. Now I have a better sense of it, but…
Lex Fridman
What advice would you have for folks who have an autistic mind on how to flourish in this world?
What advice would you have for folks who have an autistic mind on how to flourish in this world?
Dave Plummer
In terms of prosperity and finances, the biggest thing I can say is sell what you can do and not yourself. Because if you go into a job interview and you try to wow them with your personality and how amazing you are, it may or may not go well. But if you go in with your portfolio of work and say, “Look, here’s my GitHub history and here are the awesome projects I contributed to, and here’s the actual algorithm I wrote, and this is what I do,” I think you get a lot further with that. So, whether you’re playing the piano or writing code.
In terms of prosperity and finances, the biggest thing I can say is sell what you can do and not yourself. Because if you go into a job interview and you try to wow them with your personality and how amazing you are, it may or may not go well. But if you go in with your portfolio of work and say, “Look, here’s my GitHub history and here are the awesome projects I contributed to, and here’s the actual algorithm I wrote, and this is what I do,” I think you get a lot further with that. So, whether you’re playing the piano or writing code.
Lex Fridman
That said, so much of software engineering on large teams has a social component to it, right?
That said, so much of software engineering on large teams has a social component to it, right?
Dave Plummer
It does, and that was a liability for me.
It does, and that was a liability for me.
Lex Fridman
How do you… I mean, what have you learned about how to solve that little puzzle?
How do you… I mean, what have you learned about how to solve that little puzzle?
Dave Plummer
I think the biggest deficit for me was when I started to manage people, because now you’re concerned about their hopes, dreams, aspirations, what motivates them. They have entire lives that are kind of a mystery to me, because I assume they want to be motivated and led and encouraged and compensated exactly as I would. And that’s not always the case. Some people need a lot more affirmation, some people just want money, some people want to be in the important meetings and make decisions. But I was largely oblivious to that. And so eventually I had to learn that everybody that you’re managing has their own set of incentives and priorities, and they’re completely different from what I think they probably are.
I think the biggest deficit for me was when I started to manage people, because now you’re concerned about their hopes, dreams, aspirations, what motivates them. They have entire lives that are kind of a mystery to me, because I assume they want to be motivated and led and encouraged and compensated exactly as I would. And that’s not always the case. Some people need a lot more affirmation, some people just want money, some people want to be in the important meetings and make decisions. But I was largely oblivious to that. And so eventually I had to learn that everybody that you’re managing has their own set of incentives and priorities, and they’re completely different from what I think they probably are.
Lex Fridman
So you could, I guess, make things more explicit and just communicate better about, like, ask them about what their interests are.
So you could, I guess, make things more explicit and just communicate better about, like, ask them about what their interests are.
Dave Plummer
Yeah. And that’s something I started doing, is overtly asking. Because it’s hard for me to nudge somebody there. I’m not good with that kind of social dance, so…
Yeah. And that’s something I started doing, is overtly asking. Because it’s hard for me to nudge somebody there. I’m not good with that kind of social dance, so…
Lex Fridman
Yeah, part of the social dance is there’s a lot of stuff that’s unsaid. You can kind of figure out… You can read people. But if that’s… With autism, it might be a little bit difficult to do that, and so you have to make things more explicit. Plus, like, sarcasm and satire and humor might be difficult. I would love to be a fly on the wall in some of your earlier interactions with Microsoft. I mean, some of the greatest engineers have a mind like this, so…
Yeah, part of the social dance is there’s a lot of stuff that’s unsaid. You can kind of figure out… You can read people. But if that’s… With autism, it might be a little bit difficult to do that, and so you have to make things more explicit. Plus, like, sarcasm and satire and humor might be difficult. I would love to be a fly on the wall in some of your earlier interactions with Microsoft. I mean, some of the greatest engineers have a mind like this, so…
Dave Plummer
Yeah, I’ve had laptops thrown at me and stuff, and I’m sure it was my own fault, so…
Yeah, I’ve had laptops thrown at me and stuff, and I’m sure it was my own fault, so…
Lex Fridman
You write about the 10-second autism test. Could you explain how this works?
You write about the 10-second autism test. Could you explain how this works?
Dave Plummer
Yeah. Now, there is, of course… Anything that has two answers has a high error rate, but… So what’s more important to society as a whole from the people, is it cooperation or creativity? And if you had to pick one, which is the most important? And most neurotypical people will generally lean towards cooperation, whereas people on the spectrum tend to lean towards creativity as individual problem-solvers.
Yeah. Now, there is, of course… Anything that has two answers has a high error rate, but… So what’s more important to society as a whole from the people, is it cooperation or creativity? And if you had to pick one, which is the most important? And most neurotypical people will generally lean towards cooperation, whereas people on the spectrum tend to lean towards creativity as individual problem-solvers.
Lex Fridman
Of course, there’s some kind of error rate there.
Of course, there’s some kind of error rate there.
Dave Plummer
So if you want to double your precision, you can use a second test, which is you ask, “There’s a room with 10 chairs, and six people come in and sit down in those chairs. How many chairs are left?” Now, some people are going to say four, but I’m going to say 10, because that’s how many chairs are still there. Literally true. And I’m not being a dick.
So if you want to double your precision, you can use a second test, which is you ask, “There’s a room with 10 chairs, and six people come in and sit down in those chairs. How many chairs are left?” Now, some people are going to say four, but I’m going to say 10, because that’s how many chairs are still there. Literally true. And I’m not being a dick.
Lex Fridman
Yeah, okay.
Yeah, okay.
Dave Plummer
I’m not trying to be complicated, but that is how my mind works. And so when I see that question, it’s like it depends how you answer it.
I’m not trying to be complicated, but that is how my mind works. And so when I see that question, it’s like it depends how you answer it.
Lex Fridman
So you’re how literally you take things?
So you’re how literally you take things?
Dave Plummer
Yeah. Everything is very literal for me. I remember as a kid, my grandfather was building a planter holder in the kitchen for my mom. And he was using these big angle brackets that I thought were a little overkill, and I said, “Do you think that’ll be big enough to hold the plant?” And he says, “It’ll be big enough to hold a horse.” And I was only five, but I was very confused about, A, why you would bring a horse into your kitchen, why you would put a horse up on a planter, and all of these things that didn’t make any sense to me when obviously it was a figure of speech. But for a lot of my life, I took figures of speech as literal, so…
Yeah. Everything is very literal for me. I remember as a kid, my grandfather was building a planter holder in the kitchen for my mom. And he was using these big angle brackets that I thought were a little overkill, and I said, “Do you think that’ll be big enough to hold the plant?” And he says, “It’ll be big enough to hold a horse.” And I was only five, but I was very confused about, A, why you would bring a horse into your kitchen, why you would put a horse up on a planter, and all of these things that didn’t make any sense to me when obviously it was a figure of speech. But for a lot of my life, I took figures of speech as literal, so…
Lex Fridman
You’ve mentioned emotional post-processing as a strategy you use to replace social interactions so you can sort of reverse engineer to help you understand the neurotypical world. I think this is going to be useful to a lot of people. What does that entail? How does that help you?
You’ve mentioned emotional post-processing as a strategy you use to replace social interactions so you can sort of reverse engineer to help you understand the neurotypical world. I think this is going to be useful to a lot of people. What does that entail? How does that help you?
Dave Plummer
So if I meet somebody, particularly somebody new, and it’s my first couple interactions with them, so even meeting you today, then I will go home later and replay all of the moments where I had choices to make. And probably the most uncomfortable ones first, to find out, what did I do wrong in that moment? What did I miss? What was the other person thinking? How can I improve that kind of situation next time, and do I need to go fix it or make a phone call, that kind of thing in a bad… you know, in an extreme case. But… And that’s happened a couple times in my life. Like, I had a car restored that my dad had bought new in ’69. I still have it, so we’ve had it 50 years.
So if I meet somebody, particularly somebody new, and it’s my first couple interactions with them, so even meeting you today, then I will go home later and replay all of the moments where I had choices to make. And probably the most uncomfortable ones first, to find out, what did I do wrong in that moment? What did I miss? What was the other person thinking? How can I improve that kind of situation next time, and do I need to go fix it or make a phone call, that kind of thing in a bad… you know, in an extreme case. But… And that’s happened a couple times in my life. Like, I had a car restored that my dad had bought new in ’69. I still have it, so we’ve had it 50 years.
Dave Plummer
About 20 years ago, I had it restored, and it was a three-year process of craftsmen working on this car for thousands of hours. I go out to pick it up and I’m inspecting the car and I’m very impressed with the work, and I’m saying, “Oh, this is nice and this is great,” and everything else. Then I fly home and write the check and the car gets delivered. And then I realized probably 10 years later that I had a whole bunch of craftsmen that had worked on my car for three years, and I probably should have blown some smoke up their butts about what a great job they did, but I never did that because it’s not what I wanted or needed in that moment. And I was completely oblivious to that.
About 20 years ago, I had it restored, and it was a three-year process of craftsmen working on this car for thousands of hours. I go out to pick it up and I’m inspecting the car and I’m very impressed with the work, and I’m saying, “Oh, this is nice and this is great,” and everything else. Then I fly home and write the check and the car gets delivered. And then I realized probably 10 years later that I had a whole bunch of craftsmen that had worked on my car for three years, and I probably should have blown some smoke up their butts about what a great job they did, but I never did that because it’s not what I wanted or needed in that moment. And I was completely oblivious to that.
Dave Plummer
So I sent an email to the manager, or to the owner of the place, and I said, “I don’t know if you remember this, but 10 years ago, I picked up my car and I probably looked unimpressed, but I want you to know that I was very impressed with everything and the quality and everything else.” And he wrote back. He’s like, “I’ve thought of that moment often.” (laughs) So I’m like, “Now I’m glad I brought it up.”
So I sent an email to the manager, or to the owner of the place, and I said, “I don’t know if you remember this, but 10 years ago, I picked up my car and I probably looked unimpressed, but I want you to know that I was very impressed with everything and the quality and everything else.” And he wrote back. He’s like, “I’ve thought of that moment often.” (laughs) So I’m like, “Now I’m glad I brought it up.”
Lex Fridman
Yeah, there’s subtle things about human interaction that mean a lot to people, and if you ask them straight up, they might not be able to articulate that, but it means a lot. And when it’s off, when something is off, it bothers them.
Yeah, there’s subtle things about human interaction that mean a lot to people, and if you ask them straight up, they might not be able to articulate that, but it means a lot. And when it’s off, when something is off, it bothers them.
Dave Plummer
Right.
Right.
Lex Fridman
But to reverse engineer that, to figure that out for a person who might not sense those little subtleties of human interaction is tough.
But to reverse engineer that, to figure that out for a person who might not sense those little subtleties of human interaction is tough.
Dave Plummer
That’s a good point to jump in there, too, on empathy because there is some perception in the community that people with autism lack empathy, and I don’t think that’s the case at all. I can only speak for myself. I feel fairly empathetic, but I think the problem is a communication one, and it works in both directions, whereas I don’t know how you’re feeling, so it’s hard for me to be empathetic with it until you communicate to me what it is you’re experiencing. And then once I know, once I have an understanding of what’s going on in your head, I can feel incredibly sorry for you. But until then, I’m going to assume you’re going to handle it just like I would in your position, in my case, with what I know now.
That’s a good point to jump in there, too, on empathy because there is some perception in the community that people with autism lack empathy, and I don’t think that’s the case at all. I can only speak for myself. I feel fairly empathetic, but I think the problem is a communication one, and it works in both directions, whereas I don’t know how you’re feeling, so it’s hard for me to be empathetic with it until you communicate to me what it is you’re experiencing. And then once I know, once I have an understanding of what’s going on in your head, I can feel incredibly sorry for you. But until then, I’m going to assume you’re going to handle it just like I would in your position, in my case, with what I know now.
Lex Fridman
What advice would you give to people on the other side? How can they help you be a better friend or partner or colleague? How should they communicate with you to help, like, give more information?
What advice would you give to people on the other side? How can they help you be a better friend or partner or colleague? How should they communicate with you to help, like, give more information?
Dave Plummer
Yeah. Be really specific. And don’t assume I’m going to pick up on clues and nuance and subtlety. So if you’re trying to nudge me into a particular behavior, you’re much better off saying, “Dave, this is what you need to do.”
Yeah. Be really specific. And don’t assume I’m going to pick up on clues and nuance and subtlety. So if you’re trying to nudge me into a particular behavior, you’re much better off saying, “Dave, this is what you need to do.”
Lex Fridman
Have I failed in any way today?
Have I failed in any way today?
Dave Plummer
No, not yet.
No, not yet.
Lex Fridman
All right. What score would you give me out of one to ten? Am I a six? A seven?
All right. What score would you give me out of one to ten? Am I a six? A seven?
Dave Plummer
7.5.
7.5.
Lex Fridman
Communication? 7.5? (laughs) Floating point. Nice. Masking. You got to tell me what that is. It’s a significant experience for many on the spectrum. What is masking? And tell me about any of the experiences you’ve had with masking.
Communication? 7.5? (laughs) Floating point. Nice. Masking. You got to tell me what that is. It’s a significant experience for many on the spectrum. What is masking? And tell me about any of the experiences you’ve had with masking.
Dave Plummer
So masking is, and it’s probably not the right way to describe it, but it’s the act of acting normal. And that is, how do I conduct myself in a social situation in a way that other neurotypical people are going to receive and accept it the right way? And everything you do in a social interaction, from waving my hands to making facial expressions to tone of voice to posture, it’s a huge contrivance and it’s work. So it comes natural to most people, it’s just what they do, and cool people do it really well. But for somebody on the spectrum, you’ve got to fake it all.
So masking is, and it’s probably not the right way to describe it, but it’s the act of acting normal. And that is, how do I conduct myself in a social situation in a way that other neurotypical people are going to receive and accept it the right way? And everything you do in a social interaction, from waving my hands to making facial expressions to tone of voice to posture, it’s a huge contrivance and it’s work. So it comes natural to most people, it’s just what they do, and cool people do it really well. But for somebody on the spectrum, you’ve got to fake it all.
Lex Fridman
Yeah. Acting normal.
Yeah. Acting normal.
Dave Plummer
There’s a song by Rush, you know the band? Limelight. And it’s written by Neil Peart. I only speculate about people who have passed on, so I’ve got a sense he was probably on the spectrum. But the line is something like, “All the world’s indeed a stage, and we are merely players, performers and portrayers, each another’s audience.” And he talks at length in the song about not being able to treat strangers as friends and being able to fake an affect and all that, so it seems like he’s struggling with masking a lot in the song. I have no idea, but that was what I took from it.
There’s a song by Rush, you know the band? Limelight. And it’s written by Neil Peart. I only speculate about people who have passed on, so I’ve got a sense he was probably on the spectrum. But the line is something like, “All the world’s indeed a stage, and we are merely players, performers and portrayers, each another’s audience.” And he talks at length in the song about not being able to treat strangers as friends and being able to fake an affect and all that, so it seems like he’s struggling with masking a lot in the song. I have no idea, but that was what I took from it.
Lex Fridman
You described meltdowns as an overwhelming experience. Can you describe meltdowns? What typically triggers a meltdown?
You described meltdowns as an overwhelming experience. Can you describe meltdowns? What typically triggers a meltdown?
Dave Plummer
Generally, it is… it’s when you’re emotionally overwhelmed to the point that you can’t manage your behavior anymore. So you see it in the movie Rain Man when he’s trying to get on the airplane and he’s kind of forced and he starts losing it. That’s a meltdown. Or I’ve seen it on… They did kind of a… Well, actually, probably the best portrayal I’ve seen in media is… What’s the TV show where the doctor is autistic? He’s… Anyway, there’s a TV show where a doctor’s autistic and he’s a surgeon and he is eventually banned from surgery because of his autism, and he’s always wanted to be a surgeon and he has a complete meltdown, and it’s a pretty good portrayal on television.
Generally, it is… it’s when you’re emotionally overwhelmed to the point that you can’t manage your behavior anymore. So you see it in the movie Rain Man when he’s trying to get on the airplane and he’s kind of forced and he starts losing it. That’s a meltdown. Or I’ve seen it on… They did kind of a… Well, actually, probably the best portrayal I’ve seen in media is… What’s the TV show where the doctor is autistic? He’s… Anyway, there’s a TV show where a doctor’s autistic and he’s a surgeon and he is eventually banned from surgery because of his autism, and he’s always wanted to be a surgeon and he has a complete meltdown, and it’s a pretty good portrayal on television.
Lex Fridman
What is actually happening? Like, there’s a threshold you cross that it’s just like…
What is actually happening? Like, there’s a threshold you cross that it’s just like…
Dave Plummer
Yeah. The switch flips.
Yeah. The switch flips.
Lex Fridman
It’s like a blue screen essentially-
It’s like a blue screen essentially-
Dave Plummer
Yeah. Kind of.
Yeah. Kind of.
Lex Fridman
… for the brain algorithm?
… for the brain algorithm?
Dave Plummer
So the switch flips. You go to a primitive brain. Your frontal cortex shuts down to an extent, I think, so you don’t have the benefit of decision-making and filtering. You’re a very reptilian brain in that state. And it’s really a panic state. And so it’s a panic and a fight or flight response to not being able to tolerate the current reality. And perhaps it’s been so frustrating or you’ve been so randomized or you had a bad travel day or an argument at work or whatever, it’s added up to the point that something has now triggered you and your brain loses its ability to adequately moderate your behavior.
So the switch flips. You go to a primitive brain. Your frontal cortex shuts down to an extent, I think, so you don’t have the benefit of decision-making and filtering. You’re a very reptilian brain in that state. And it’s really a panic state. And so it’s a panic and a fight or flight response to not being able to tolerate the current reality. And perhaps it’s been so frustrating or you’ve been so randomized or you had a bad travel day or an argument at work or whatever, it’s added up to the point that something has now triggered you and your brain loses its ability to adequately moderate your behavior.
Lex Fridman
What about love and relationships? What are some of the challenges of that and… You know, there’s a show, Love on the Spectrum.
What about love and relationships? What are some of the challenges of that and… You know, there’s a show, Love on the Spectrum.
Dave Plummer
I’ve heard of it. I’ve not seen it, but I’ve heard of it.
I’ve heard of it. I’ve not seen it, but I’ve heard of it.
Lex Fridman
Because certain aspects, like literal interpretation of things, it just makes the complexity of romantic relationships even more explicit in that context.
Because certain aspects, like literal interpretation of things, it just makes the complexity of romantic relationships even more explicit in that context.
Dave Plummer
You know, I’ve been married 31 years and together for 37, so a long history there, and I think our first indication that we knew we were very different was we were sitting in the car one night out front of the house at dark and across the street there’s kind of a nice house, and it has these big brick pillars that are linked by, like, anchor chains and it forms a fence around the yard. And I’m looking at these things ’cause they’re about two feet square and they got capstone and I’m like, “You know, I wonder if they’re hollow or are they backfilled?” Are they filled with concrete or what?” And my now wife looks at me and she’s like, “What’s wrong with you?” “Why do you have a place in your head that cares about that?”
You know, I’ve been married 31 years and together for 37, so a long history there, and I think our first indication that we knew we were very different was we were sitting in the car one night out front of the house at dark and across the street there’s kind of a nice house, and it has these big brick pillars that are linked by, like, anchor chains and it forms a fence around the yard. And I’m looking at these things ’cause they’re about two feet square and they got capstone and I’m like, “You know, I wonder if they’re hollow or are they backfilled?” Are they filled with concrete or what?” And my now wife looks at me and she’s like, “What’s wrong with you?” “Why do you have a place in your head that cares about that?”
Lex Fridman
Yeah. That’s great.
Yeah. That’s great.
Dave Plummer
And we just knew in the moment that I was passionately involved and caring, and she was passionately involved, and why would you even worry about that kind of thing? We knew we were very different.
And we just knew in the moment that I was passionately involved and caring, and she was passionately involved, and why would you even worry about that kind of thing? We knew we were very different.
Lex Fridman
Yeah. Very specific, seemingly irrelevant details.
Yeah. Very specific, seemingly irrelevant details.
Dave Plummer
But- …I was never good with people. I don’t get it when people like me, I guess. And so my son is the same way, because they don’t fall very far from the tree. I got them a T-shirt that says, “If you’re hitting on me, please let me know and be specific, because I’m clueless.” And it’s very similar for me. I mean, I had to be around a long time and kind of grow on people because I had no game, I had no ability to do the social dances that that whole thing requires. So my only option is to just be myself, and that works for some people.
But- …I was never good with people. I don’t get it when people like me, I guess. And so my son is the same way, because they don’t fall very far from the tree. I got them a T-shirt that says, “If you’re hitting on me, please let me know and be specific, because I’m clueless.” And it’s very similar for me. I mean, I had to be around a long time and kind of grow on people because I had no game, I had no ability to do the social dances that that whole thing requires. So my only option is to just be myself, and that works for some people.
Lex Fridman
Were you able to say, like, “I love you,” that kind of stuff?
Were you able to say, like, “I love you,” that kind of stuff?
Dave Plummer
Yeah. I mean, her family was way more open with that kind of thing than mine was. So it was a growing period for me. But, yeah, that’s not a problem I have.
Yeah. I mean, her family was way more open with that kind of thing than mine was. So it was a growing period for me. But, yeah, that’s not a problem I have.
Lex Fridman
Okay. All right. But it seems unimportant. Like, what is that actually accomplishing?
Okay. All right. But it seems unimportant. Like, what is that actually accomplishing?
Dave Plummer
Well, now we do a lot of affirmation and checking. In the last couple of years, we do a thing where she’ll just be like, “You good?” I’m like, “Yeah.” And there’s two steps to that. There’s the “Are you good?” and then there’s my response, because if I’m like, “Yeah,” she knows something’s up.
Well, now we do a lot of affirmation and checking. In the last couple of years, we do a thing where she’ll just be like, “You good?” I’m like, “Yeah.” And there’s two steps to that. There’s the “Are you good?” and then there’s my response, because if I’m like, “Yeah,” she knows something’s up.
Lex Fridman
Yeah. So,
Yeah. So,
Dave Plummer
And so there’s always this pinging back and forth because there’s not the ability to read people just from looking at them to know what’s going on, so we have this explicit check mechanism, I think, where we develop that.
And so there’s always this pinging back and forth because there’s not the ability to read people just from looking at them to know what’s going on, so we have this explicit check mechanism, I think, where we develop that.
Lex Fridman
So there’s a vast chasm between yeah and neh. Again, that subtlety of human communication. You’ve written about the experience that people have of feeling, quote, “a little bit autistic.” Could you elaborate on this concept?
So there’s a vast chasm between yeah and neh. Again, that subtlety of human communication. You’ve written about the experience that people have of feeling, quote, “a little bit autistic.” Could you elaborate on this concept?
Dave Plummer
Yeah, I think a lot of people, maybe 10 to 20% of the population, is somewhere on the autism spectrum, but isn’t impacted by it enough that it rises to the level of a disorder. But they still have many of the characteristics that arise from autism. And I think if they can understand and identify and manage some of those behaviors in an optimal way, they can both leverage them and take advantage of some of the skills and mediate some of the deficits and problems that come with it. And I wrote it mostly for my kids because none of them, as far as I know, have ASD, but they’ve all got certain aspects of my behavior that are particularly related to it, so I thought I’d write a little manual for them, basically.
Yeah, I think a lot of people, maybe 10 to 20% of the population, is somewhere on the autism spectrum, but isn’t impacted by it enough that it rises to the level of a disorder. But they still have many of the characteristics that arise from autism. And I think if they can understand and identify and manage some of those behaviors in an optimal way, they can both leverage them and take advantage of some of the skills and mediate some of the deficits and problems that come with it. And I wrote it mostly for my kids because none of them, as far as I know, have ASD, but they’ve all got certain aspects of my behavior that are particularly related to it, so I thought I’d write a little manual for them, basically.
Lex Fridman
Hmm. Why do you think so many programmers, like excellent, great programmers and great engineers, are on the spectrum?
Hmm. Why do you think so many programmers, like excellent, great programmers and great engineers, are on the spectrum?
Dave Plummer
I think it’s that single-minded focus and the ability to reduce a problem, and to be ultimately curious about what’s inside stuff. That’s been an obsession for me my whole life: what’s inside? I gotta take my mom’s oven apart because I gotta know how the flip clock works. And I think that’s a good habit to have if you’re gonna be a programmer.
I think it’s that single-minded focus and the ability to reduce a problem, and to be ultimately curious about what’s inside stuff. That’s been an obsession for me my whole life: what’s inside? I gotta take my mom’s oven apart because I gotta know how the flip clock works. And I think that’s a good habit to have if you’re gonna be a programmer.
Lex Fridman
And being willing, being excited to get into the details. Yeah. What’s a cool thing you hope to program to build this year? What are you working on? So we got the RL learning how to play Tempest. Where are you on that, by the way? Like, what’s the ETA on success and dominance? Like victory?
And being willing, being excited to get into the details. Yeah. What’s a cool thing you hope to program to build this year? What are you working on? So we got the RL learning how to play Tempest. Where are you on that, by the way? Like, what’s the ETA on success and dominance? Like victory?
Dave Plummer
Well, it’s very close to working. I think now it’s tweaking the model size and layers and stuff like that to get it to learn past the one threshold. But, you know, it’s a couple thousand lines of Lua and it’s a couple thousand lines of Python, and they all interact and they all work, so it’s like 95% of the work is done now. It’s tuning hyperparameters and hoping for the best.
Well, it’s very close to working. I think now it’s tweaking the model size and layers and stuff like that to get it to learn past the one threshold. But, you know, it’s a couple thousand lines of Lua and it’s a couple thousand lines of Python, and they all interact and they all work, so it’s like 95% of the work is done now. It’s tuning hyperparameters and hoping for the best.
Lex Fridman
So it’s already a success in a sense, but now you’re seeing how far can this go?
So it’s already a success in a sense, but now you’re seeing how far can this go?
Dave Plummer
Yeah, my goal was to be able to beat me.
Yeah, my goal was to be able to beat me.
Lex Fridman
That’s tough for.
That’s tough for.
Dave Plummer
It is, but lots of games now are, you know, they play them better than humans, but maybe not games this complex.
It is, but lots of games now are, you know, they play them better than humans, but maybe not games this complex.
Lex Fridman
What other cool things are you working on? What do you hope to build this year?
What other cool things are you working on? What do you hope to build this year?
Dave Plummer
The PDP-11 stuff, I’m trying to get what’s called an RA82 drive. It’s the big 14-inch monster that spins at 3600 rpm and sounds like a washing machine. And then I’ll find the controller card and write the code and integrate it into the driver and try to get that all working.
The PDP-11 stuff, I’m trying to get what’s called an RA82 drive. It’s the big 14-inch monster that spins at 3600 rpm and sounds like a washing machine. And then I’ll find the controller card and write the code and integrate it into the driver and try to get that all working.
Lex Fridman
What kind of code are you trying to run on it?
What kind of code are you trying to run on it?
Dave Plummer
I’m going to have to get the driver stack to work, so I have to incorporate the driver for it into the kernel.
I’m going to have to get the driver stack to work, so I have to incorporate the driver for it into the kernel.
Fastest programming language
Lex Fridman
You built a machine recently with one terabyte of RAM. How did that happen and why?
You built a machine recently with one terabyte of RAM. How did that happen and why?
Dave Plummer
We have a project called GitHub Primes. If you just search for GitHub Primes, you’ll find it, and it is…
We have a project called GitHub Primes. If you just search for GitHub Primes, you’ll find it, and it is…
Lex Fridman
GitHub Primes.
GitHub Primes.
Dave Plummer
…a single set of prime number algorithms implemented in about 100 different languages. So it’s the exact same algorithm, and we require that you follow certain rules to make it fair. Then you express that algorithm in whatever language you choose to the best of your ability, and we run a benchmark every night, and we compile the results and find out which languages are fastest.
…a single set of prime number algorithms implemented in about 100 different languages. So it’s the exact same algorithm, and we require that you follow certain rules to make it fair. Then you express that algorithm in whatever language you choose to the best of your ability, and we run a benchmark every night, and we compile the results and find out which languages are fastest.
Lex Fridman
Is this the one? Oh, so this is it. You’re using this for? Oh, so-
Is this the one? Oh, so this is it. You’re using this for? Oh, so-
Dave Plummer
So-
So-
Lex Fridman
This machine runs those tests? Okay, you’ve got to tell me about this project. This is an epic project. So you’re comparing the performance of the different programming languages.
This machine runs those tests? Okay, you’ve got to tell me about this project. This is an epic project. So you’re comparing the performance of the different programming languages.
Dave Plummer
Of all these languages. So they all get built into an individual Docker container, and then they all run. And so-
Of all these languages. So they all get built into an individual Docker container, and then they all run. And so-
Lex Fridman
This is an incredible project. This is really, really cool. It’s really measuring the performance of the different languages. So what have you learned about which languages? Which language usually wins?
This is an incredible project. This is really, really cool. It’s really measuring the performance of the different languages. So what have you learned about which languages? Which language usually wins?
Dave Plummer
Zig, I think right now.
Zig, I think right now.
Lex Fridman
Zig.
Zig.
Dave Plummer
It does, it varies. People will make an improvement to the C++ then it’ll pass for a while, and then the Zig guys will get angry and come back and make it faster.
It does, it varies. People will make an improvement to the C++ then it’ll pass for a while, and then the Zig guys will get angry and come back and make it faster.
Lex Fridman
So Zig, Rust, C++, C? And what kind of code is being run? What’s the piece of code that they’re trying to run to measure the performance?
So Zig, Rust, C++, C? And what kind of code is being run? What’s the piece of code that they’re trying to run to measure the performance?
Dave Plummer
So what they’re doing is they’re solving the primes up to 100 million as many times per second as they can in a five-second loop.
So what they’re doing is they’re solving the primes up to 100 million as many times per second as they can in a five-second loop.
Lex Fridman
And so it’s a loop, got it. Over and over and over and over and over again.
And so it’s a loop, got it. Over and over and over and over and over again.
Dave Plummer
Yeah, on all cores.
Yeah, on all cores.
Lex Fridman
So what-
So what-
Dave Plummer
Across all CPUs.
Across all CPUs.
Lex Fridman
What about, like, how the program is written? Does that vary?
What about, like, how the program is written? Does that vary?
Dave Plummer
No. So you can do anything you want, but it has to be a prime sieve. You’re allowed to use one bit per integer at most, so you can’t use a byte, which is cheaper and easier. There are a number of rules like that that you have to allocate the memory within your timed loop. And so we have a set of rules and we have some solutions that don’t follow the rules like the 6502 because you’ve only got 64K, you can’t do 100 million sieve. So there’s a lot of solutions like that that we run as exhibition projects, but among the main languages, they all follow the same rules, and so it really should just be the how the algorithm is expressed in that language. And many of them use the same backend compiler, so it really is how you’re expressing it and the limitations or the benefits of that language.
No. So you can do anything you want, but it has to be a prime sieve. You’re allowed to use one bit per integer at most, so you can’t use a byte, which is cheaper and easier. There are a number of rules like that that you have to allocate the memory within your timed loop. And so we have a set of rules and we have some solutions that don’t follow the rules like the 6502 because you’ve only got 64K, you can’t do 100 million sieve. So there’s a lot of solutions like that that we run as exhibition projects, but among the main languages, they all follow the same rules, and so it really should just be the how the algorithm is expressed in that language. And many of them use the same backend compiler, so it really is how you’re expressing it and the limitations or the benefits of that language.
Lex Fridman
They’re allowed to be multiple submissions per language?
They’re allowed to be multiple submissions per language?
Dave Plummer
Yeah, yeah. So if you look in the C, there’s like five, I think.
Yeah, yeah. So if you look in the C, there’s like five, I think.
Lex Fridman
Okay. And then they, some of them might use different compilers, or no?
Okay. And then they, some of them might use different compilers, or no?
Dave Plummer
Yeah, some are GCC, some are Clang, LLVM.
Yeah, some are GCC, some are Clang, LLVM.
Lex Fridman
I’m looking at a snapshot here from a couple years ago, Zig was at the top, then Rust, then Nim, Haskell. Oh, no, this is not, this is not ordered by slowness, or is it? It is.
I’m looking at a snapshot here from a couple years ago, Zig was at the top, then Rust, then Nim, Haskell. Oh, no, this is not, this is not ordered by slowness, or is it? It is.
Dave Plummer
So C would be 1.5 times as long as Zig.
So C would be 1.5 times as long as Zig.
Lex Fridman
Wow. Okay. Fascinating. Well, it’s a super cool project.
Wow. Okay. Fascinating. Well, it’s a super cool project.
Dave Plummer
And we’ve got in crazy languages like PowerShell. There’s a version in PowerShell, and stuff like that.
And we’ve got in crazy languages like PowerShell. There’s a version in PowerShell, and stuff like that.
Lex Fridman
So this is automated, like in terms of organization of like how the submissions are done, there’s a structure to it? That’s cool.
So this is automated, like in terms of organization of like how the submissions are done, there’s a structure to it? That’s cool.
Dave Plummer
Yeah, there’s two guys over in Europe Rucker and Tudor basically own this now. I started as just three languages, I did Python, C#, and C++. And I checked them in and I published the episode, and then people started throwing more solutions in there and it just got out of hand, so I had to get somebody to manage that one and they’ve been great doing that for me.
Yeah, there’s two guys over in Europe Rucker and Tudor basically own this now. I started as just three languages, I did Python, C#, and C++. And I checked them in and I published the episode, and then people started throwing more solutions in there and it just got out of hand, so I had to get somebody to manage that one and they’ve been great doing that for me.
Lex Fridman
What’s the happiest moment for you when you’re programming and building a thing? Like, what do you enjoy most?
What’s the happiest moment for you when you’re programming and building a thing? Like, what do you enjoy most?
Dave Plummer
I think the most fun for me is when I build something complex, and I’ve thought through how it should work, and then I run it and it does work that way. That creates intense satisfaction. So seeing the results come out the way that I planned them and have it work, because it rarely does the first time, but…
I think the most fun for me is when I build something complex, and I’ve thought through how it should work, and then I run it and it does work that way. That creates intense satisfaction. So seeing the results come out the way that I planned them and have it work, because it rarely does the first time, but…
Lex Fridman
Yeah. Or especially if it does work the first time.
Yeah. Or especially if it does work the first time.
Dave Plummer
I never trust that. I always feel like I’m missing something.
I never trust that. I always feel like I’m missing something.
Future of programming
Lex Fridman
That’s true. But, you know, with compiled languages like C++, that’s always a good feeling. You write a bunch of code, and you compile it all, it compiles without warnings, without errors. It’s a cool feeling. What do you think is the future of programming? So now, I don’t know how much you’ve got to really experience the impact of LLMs with code generation. Have you used Cursor much, Cursor VSCode with code generation?
That’s true. But, you know, with compiled languages like C++, that’s always a good feeling. You write a bunch of code, and you compile it all, it compiles without warnings, without errors. It’s a cool feeling. What do you think is the future of programming? So now, I don’t know how much you’ve got to really experience the impact of LLMs with code generation. Have you used Cursor much, Cursor VSCode with code generation?
Dave Plummer
Yeah, I’ve done a ton of it for the Python side because I’m not great with Python, and I’m kind of new to it. So I found it very helpful because I’ve learned a lot from watching the code that it generates if I don’t know how to do something. Because if I were to write Python from scratch, it’s going to be about four times as long as what the AI can crank out because Python can be pretty terse if you’re good at it.
Yeah, I’ve done a ton of it for the Python side because I’m not great with Python, and I’m kind of new to it. So I found it very helpful because I’ve learned a lot from watching the code that it generates if I don’t know how to do something. Because if I were to write Python from scratch, it’s going to be about four times as long as what the AI can crank out because Python can be pretty terse if you’re good at it.
Lex Fridman
Oh, that’s cool. So you essentially learned Python for this project?
Oh, that’s cool. So you essentially learned Python for this project?
Dave Plummer
Yeah.
Yeah.
Lex Fridman
So this is a good case study of a great programmer in C++ quickly learning a language.
So this is a good case study of a great programmer in C++ quickly learning a language.
Dave Plummer
Yeah, I’m vibe coding my way through it, I guess.
Yeah, I’m vibe coding my way through it, I guess.
Lex Fridman
Vibe coding your way through it. I mean, that is a really powerful use case to learn a language for. If you’re already a good programmer, to learn either a new language or a new way to approach a problem by having it generate it because you already you probably understand the Python code it generates.
Vibe coding your way through it. I mean, that is a really powerful use case to learn a language for. If you’re already a good programmer, to learn either a new language or a new way to approach a problem by having it generate it because you already you probably understand the Python code it generates.
Dave Plummer
Yeah.
Yeah.
Lex Fridman
Like without actually looking up any of the syntax.
Like without actually looking up any of the syntax.
Dave Plummer
Yeah, it’s all pretty self-explanatory once you see it but, you know, creating it from whole cloth is a little different, so.
Yeah, it’s all pretty self-explanatory once you see it but, you know, creating it from whole cloth is a little different, so.
Lex Fridman
Yeah, but you still have to learn how to program in order to use it in that way.
Yeah, but you still have to learn how to program in order to use it in that way.
Dave Plummer
Oh, and to read it and to know what to tell it to do next and all that, yeah. I don’t think you can vibe code yourself if you’re just new and haven’t coded but if you’re a good programmer, AI can make you incredibly powerful.
Oh, and to read it and to know what to tell it to do next and all that, yeah. I don’t think you can vibe code yourself if you’re just new and haven’t coded but if you’re a good programmer, AI can make you incredibly powerful.
Lex Fridman
What do you think is the future of programming, like 5, 10, 20 years from now, this whole process? Now, vibe coding is kind of a fun meme thing because you still have to be… The people that don’t know how to program and are just vibe coding are almost entirely creating systems that are not usable in production. They’re not… It’s very difficult-
What do you think is the future of programming, like 5, 10, 20 years from now, this whole process? Now, vibe coding is kind of a fun meme thing because you still have to be… The people that don’t know how to program and are just vibe coding are almost entirely creating systems that are not usable in production. They’re not… It’s very difficult-
Lex Fridman
It’s very difficult to create a product. And the people who are already great programmers kind of vibe code just for… in the way that you’re doing it. They’re basically… it’s just a fancy autocomplete, and they end up editing it, or it’s a way to learn a new API, or new language, or a new whatever, a new specific use case, or maybe a different kind of gooey component or something like that. But as they get smarter and smarter, we don’t know where the ceiling is. That might change the nature of what it means to be a programmer. So do you think about that?
It’s very difficult to create a product. And the people who are already great programmers kind of vibe code just for… in the way that you’re doing it. They’re basically… it’s just a fancy autocomplete, and they end up editing it, or it’s a way to learn a new API, or new language, or a new whatever, a new specific use case, or maybe a different kind of gooey component or something like that. But as they get smarter and smarter, we don’t know where the ceiling is. That might change the nature of what it means to be a programmer. So do you think about that?
Dave Plummer
I do. I don’t want to say prompt engineer, but I think it’s going to be something like that in the sense that if you’re an architect building a bridge, at some point, guys were down there welding beams together, but now you’re dragging things around in AutoCAD and assembling from big pre-formed sections. And I assume that’s what programming will be like. You won’t be in there throwing individual lines of code around; you’ll be moving components and interfaces and describing to the AI what those interactions should be and letting it build the components. But I think we’re still quite a ways from it being able to whole cloth generate… You can’t say, “Give me a Linux kernel that’s compatible with Linux.” One day, we’ll be able to, and it’ll crank it out, but we’re not there yet.
I do. I don’t want to say prompt engineer, but I think it’s going to be something like that in the sense that if you’re an architect building a bridge, at some point, guys were down there welding beams together, but now you’re dragging things around in AutoCAD and assembling from big pre-formed sections. And I assume that’s what programming will be like. You won’t be in there throwing individual lines of code around; you’ll be moving components and interfaces and describing to the AI what those interactions should be and letting it build the components. But I think we’re still quite a ways from it being able to whole cloth generate… You can’t say, “Give me a Linux kernel that’s compatible with Linux.” One day, we’ll be able to, and it’ll crank it out, but we’re not there yet.
Lex Fridman
Does it make you sad that we’re climbing the layers of abstraction so quickly so you, somebody that used to do machine code and then assembly, then C and C++, that we’re getting to a point where we’re vibe coding with natural language?
Does it make you sad that we’re climbing the layers of abstraction so quickly so you, somebody that used to do machine code and then assembly, then C and C++, that we’re getting to a point where we’re vibe coding with natural language?
Dave Plummer
Yeah, I kind of came up at a really fortunate time, I think, because I had to come up with the technology over the course of 30 or 40 years, so I understand TTL logic, and I can use AI to write code, and I kind of know all the pieces in between. There certainly are holes in my knowledge, but I think the only way to have got that level of knowledge or the completeness of that picture is to have lived it for that long. And it’s going to be hard to duplicate that for people starting now.
Yeah, I kind of came up at a really fortunate time, I think, because I had to come up with the technology over the course of 30 or 40 years, so I understand TTL logic, and I can use AI to write code, and I kind of know all the pieces in between. There certainly are holes in my knowledge, but I think the only way to have got that level of knowledge or the completeness of that picture is to have lived it for that long. And it’s going to be hard to duplicate that for people starting now.
Lex Fridman
What do you think is the meaning of this whole thing? Of existence of life, whatever is going on here?
What do you think is the meaning of this whole thing? Of existence of life, whatever is going on here?
Dave Plummer
Making cool stuff. I guess, fundamentally, what I care about is being able to make complex things that are useful to other people, which leverages my abilities in a way that allows me to be creative and to create things that other people can use in a way that if I was limited to painting or sculpting or whatever in the classic arts, I would be hopeless. And so for me, that’s really the meaning of life, and then maybe you raise a couple of good kids to hand the baton off to.
Making cool stuff. I guess, fundamentally, what I care about is being able to make complex things that are useful to other people, which leverages my abilities in a way that allows me to be creative and to create things that other people can use in a way that if I was limited to painting or sculpting or whatever in the classic arts, I would be hopeless. And so for me, that’s really the meaning of life, and then maybe you raise a couple of good kids to hand the baton off to.
Lex Fridman
Yeah, and you’ve created a lot of cool stuff over your life that impacted millions, probably billions of people, and now you’re inspiring… You’re creating cool stuff for everyone to see on your YouTube, and you’re inspiring people in that way. So for everything you’ve done in the past and everything you’re doing now, I’m a big fan. I’m really grateful for what-
Yeah, and you’ve created a lot of cool stuff over your life that impacted millions, probably billions of people, and now you’re inspiring… You’re creating cool stuff for everyone to see on your YouTube, and you’re inspiring people in that way. So for everything you’ve done in the past and everything you’re doing now, I’m a big fan. I’m really grateful for what-
Dave Plummer
Great.
Great.
Lex Fridman
… you’re doing and grateful that we got a chance to talk today. Thank you, brother.
… you’re doing and grateful that we got a chance to talk today. Thank you, brother.
Dave Plummer
Thank you.
Thank you.
Lex Fridman
Thanks for listening to this conversation with Dave Plummer. To support this podcast, please check out our sponsors in the description. And now, let me leave with some words from Bjarne Stroustrup, creator of C++ and somebody who, by the way, I interviewed a long, long time ago, Episode 48 of the podcast. He said, “There are only two kinds of languages. The ones people complain about and the ones nobody uses.” Thank you for listening, and hope to see you next time.
Thanks for listening to this conversation with Dave Plummer. To support this podcast, please check out our sponsors in the description. And now, let me leave with some words from Bjarne Stroustrup, creator of C++ and somebody who, by the way, I interviewed a long, long time ago, Episode 48 of the podcast. He said, “There are only two kinds of languages. The ones people complain about and the ones nobody uses.” Thank you for listening, and hope to see you next time.
Transcript for Dave Hone: T-Rex, Dinosaurs, Extinction, Evolution, and Jurassic Park | Lex Fridman Podcast #480
This is a transcript of Lex Fridman Podcast #480 with Dave Hone.
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Table of Contents
Here are the loose “chapters” in the conversation.
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Click link to jump approximately to that part in the transcript:
- 0:00 – Episode highlight
- 1:23 – Introduction
- 1:56 – T-Rex’s size & biomechanics
- 25:38 – T-Rex’s hunting strategies
- 38:45 – History of dinosaurs on Earth
- 59:17 – $31.8 million T-Rex fossil
- 1:12:22 – T-Rex’s skull and bone-crushing bite force
- 1:31:12 – What Jurassic Park got wrong
- 1:49:31 – Evolution and sexual selection
- 2:10:05 – Spinosaurus
- 2:20:40 – What Jurassic Park got right
- 2:28:14 – T-Rex’s intelligence
- 2:38:12 – Cannibalism among T-Rex
- 2:43:44 – Extinction of the dinosaurs
- 3:00:54 – Dragons
- 3:17:17 – Birds are dinosaurs
- 3:28:02 – Future of paleontology
Episode highlight
Dave Hone
T. rex is definitely weird, even compared to all the other giant tyrannosaurs that are very closely related to it, because it is by far, ludicrously by far, the largest carnivore in its ecosystem.
T. rex is definitely weird, even compared to all the other giant tyrannosaurs that are very closely related to it, because it is by far, ludicrously by far, the largest carnivore in its ecosystem.
Lex Fridman
So it doesn’t really have competition, actually.
So it doesn’t really have competition, actually.
Dave Hone
I mean, this is a Velociraptor skull. There are some carnivores that are a bit bigger than this, but not enormously so, which were knocking around as T. rex. The skull’s the same type, tooth, right? But like, you think about that— and that’s like going to Africa and going, “Okay, there are lions. What’s the next biggest predator?” And it’s like, well, there’s a weasel about this big. Like, it- it’s that kind of size difference and you don’t get that normally in ecosystems.
I mean, this is a Velociraptor skull. There are some carnivores that are a bit bigger than this, but not enormously so, which were knocking around as T. rex. The skull’s the same type, tooth, right? But like, you think about that— and that’s like going to Africa and going, “Okay, there are lions. What’s the next biggest predator?” And it’s like, well, there’s a weasel about this big. Like, it- it’s that kind of size difference and you don’t get that normally in ecosystems.
Lex Fridman
It would eat the juveniles of the herbivores, but not—
It would eat the juveniles of the herbivores, but not—
Dave Hone
Oh yeah, it’s going to be eating Triceratops, Edmontosaurus, and Parasaurolophus. There are even a couple of giant sauropods knocking around—
Oh yeah, it’s going to be eating Triceratops, Edmontosaurus, and Parasaurolophus. There are even a couple of giant sauropods knocking around—
Lex Fridman
Got it.
Got it.
Dave Hone
in some places. It’s going to be hoovering them up, but like, how often is it going to eat… Again, Velociraptor isn’t there, but how often is it going to eat something the size of an adult Velociraptor? I mean, they’re a fraction of our size, and we’re probably too small. This is like lions hunting mice. You’re just not going to, unless one, like, virtually runs into your mouth, you’re not going to go and try and eat it.
in some places. It’s going to be hoovering them up, but like, how often is it going to eat… Again, Velociraptor isn’t there, but how often is it going to eat something the size of an adult Velociraptor? I mean, they’re a fraction of our size, and we’re probably too small. This is like lions hunting mice. You’re just not going to, unless one, like, virtually runs into your mouth, you’re not going to go and try and eat it.
Introduction
Lex Fridman
The following is a conversation with Dave Hone, a paleontologist, expert on dinosaurs, co-host of the Terrible Lizards podcast, and author of many scientific papers and books on the behavior and ecology of dinosaurs. This was truly a fun and fascinating conversation. This is the Lex Fridman Podcast. To support it, please check out our sponsors in the description and consider subscribing to this channel. And now, dear friends, here’s Dave Hone.
The following is a conversation with Dave Hone, a paleontologist, expert on dinosaurs, co-host of the Terrible Lizards podcast, and author of many scientific papers and books on the behavior and ecology of dinosaurs. This was truly a fun and fascinating conversation. This is the Lex Fridman Podcast. To support it, please check out our sponsors in the description and consider subscribing to this channel. And now, dear friends, here’s Dave Hone.
T-Rex’s size & biomechanics
Lex Fridman
Let’s start with the T. rex dinosaur, possibly the most iconic predator in the history of Earth. You have deeply studied and written about their evolution, biology, ecology, and behavior, so let’s first maybe put ourselves in the time of the dinosaurs and imagine we’re standing in front of a T. rex. What does it look like? What are the key features of the dinosaur in front of us?
Let’s start with the T. rex dinosaur, possibly the most iconic predator in the history of Earth. You have deeply studied and written about their evolution, biology, ecology, and behavior, so let’s first maybe put ourselves in the time of the dinosaurs and imagine we’re standing in front of a T. rex. What does it look like? What are the key features of the dinosaur in front of us?
Dave Hone
It’s gigantic. It’s almost trite now because everyone knows T. rex is massive. But yes, if you actually stand in front of one, you would be seriously impressed just how absolutely vast they are. So I’ve got a copy of a T. rex skull downstairs from my office, and yeah, I could fit comfortably through its mouth. So it would be just about capable of swallowing me whole, and I’m a pretty big guy.
It’s gigantic. It’s almost trite now because everyone knows T. rex is massive. But yes, if you actually stand in front of one, you would be seriously impressed just how absolutely vast they are. So I’ve got a copy of a T. rex skull downstairs from my office, and yeah, I could fit comfortably through its mouth. So it would be just about capable of swallowing me whole, and I’m a pretty big guy.
Lex Fridman
Your body, you could fit- … in it’s, its mouth?
Your body, you could fit- … in it’s, its mouth?
Dave Hone
I can fit through, I can fit through it.
I can fit through, I can fit through it.
Lex Fridman
Wow.
Wow.
Dave Hone
Yeah, yeah, yeah. And it’s not even a particularly big one. It’s a copy of the one that’s in the Smithsonian and they get bigger than that.
Yeah, yeah, yeah. And it’s not even a particularly big one. It’s a copy of the one that’s in the Smithsonian and they get bigger than that.
Lex Fridman
You have a to-scale copy-
You have a to-scale copy-
Dave Hone
Yeah, it’s a cast, so it’s just a giant mold made, and then—
Yeah, it’s a cast, so it’s just a giant mold made, and then—
Lex Fridman
Nice.
Nice.
Dave Hone
…pulled out like the dentist does your teeth, but very, very big. So yeah, they are 12-ish meters long. So what’s that? 14 yards. Four and a half, maybe five to the top of the head standing up, so another six yards high and then seven-ish metric tons, what’s that? About eight and a half short tons. So a colleague of mine, Tom Holtz, described them as an orca on land, but that’s it. It is a killer whale-sized animal but on legs, on land. And those are massive predators. So you’re looking at something absolutely colossal, and I think that is what will stun you.
…pulled out like the dentist does your teeth, but very, very big. So yeah, they are 12-ish meters long. So what’s that? 14 yards. Four and a half, maybe five to the top of the head standing up, so another six yards high and then seven-ish metric tons, what’s that? About eight and a half short tons. So a colleague of mine, Tom Holtz, described them as an orca on land, but that’s it. It is a killer whale-sized animal but on legs, on land. And those are massive predators. So you’re looking at something absolutely colossal, and I think that is what will stun you.
Dave Hone
I think people don’t realize how big a lot of animals are, which sounds weird, but I used to work in a few zoos and something I think you notice is when you go and see things like elephants or giraffes or rhinos, everything’s built to the scale of the animal. The elephant house is huge, the doors are huge, the bars are huge, the food is huge, and so you don’t see them in the context of something that you have a good frame of reference for. And I learned this, yeah, when I was at London Zoo and was going into the basement of the old elephant and rhino pavilion and a rhino stuck its head out from like this gap in the wall and the head was twice the size I thought it was once you stood next to it. And the same with an elephant.
I think people don’t realize how big a lot of animals are, which sounds weird, but I used to work in a few zoos and something I think you notice is when you go and see things like elephants or giraffes or rhinos, everything’s built to the scale of the animal. The elephant house is huge, the doors are huge, the bars are huge, the food is huge, and so you don’t see them in the context of something that you have a good frame of reference for. And I learned this, yeah, when I was at London Zoo and was going into the basement of the old elephant and rhino pavilion and a rhino stuck its head out from like this gap in the wall and the head was twice the size I thought it was once you stood next to it. And the same with an elephant.
Dave Hone
I once stood next to an elephant closer than you are to me now and you go, “Oh, oh, they are so much bigger than I thought.” And I think it’s similar in museums, like even when you get up relatively close to a T. rex skeleton, there’s a bit of space between you and it and then some bars, and then it’s usually raised up a little bit on a mount to hold the platform and then you stand back from that and you don’t actually get to stand like under them. And when you do that, yeah, you realize that, yeah, the foot finishes at my knee.
I once stood next to an elephant closer than you are to me now and you go, “Oh, oh, they are so much bigger than I thought.” And I think it’s similar in museums, like even when you get up relatively close to a T. rex skeleton, there’s a bit of space between you and it and then some bars, and then it’s usually raised up a little bit on a mount to hold the platform and then you stand back from that and you don’t actually get to stand like under them. And when you do that, yeah, you realize that, yeah, the foot finishes at my knee.
Lex Fridman
So is a T. rex bigger than an elephant?
So is a T. rex bigger than an elephant?
Dave Hone
Yeah.
Yeah.
Lex Fridman
That’d be fair to say?
That’d be fair to say?
Dave Hone
Yeah, I mean, a very large savanna African elephant is five to six tons, and we’re looking at seven plus. And a biped and a carnivore. So yeah, you know, a big lion, a big lion is 200 kilos, so 430 pounds. Yeah.
Yeah, I mean, a very large savanna African elephant is five to six tons, and we’re looking at seven plus. And a biped and a carnivore. So yeah, you know, a big lion, a big lion is 200 kilos, so 430 pounds. Yeah.
Lex Fridman
Well, that’s what—that’s why I mean, it’s why they consider it to be probably the most epic predator in the history of Earth.
Well, that’s what—that’s why I mean, it’s why they consider it to be probably the most epic predator in the history of Earth.
Dave Hone
Yeah, I mean, and I think more than that, I think it’s one of the most iconic animals, period.
Yeah, I mean, and I think more than that, I think it’s one of the most iconic animals, period.
Lex Fridman
Yeah.
Yeah.
Dave Hone
I mean if you’re listing things that the average person has heard of: lion, elephant, giraffe, tiger, hippo, rhino, there’s a few more, but T. rex is coming somewhere up in that list. That’s how prominent it is as an animal, so yeah, it’s almost inescapable as a paleontologist, and then doubly so for me who works on dinosaurs and doubly so again ’cause I do work on tyrannosaurs. But yeah, it just dominates conversations.
I mean if you’re listing things that the average person has heard of: lion, elephant, giraffe, tiger, hippo, rhino, there’s a few more, but T. rex is coming somewhere up in that list. That’s how prominent it is as an animal, so yeah, it’s almost inescapable as a paleontologist, and then doubly so for me who works on dinosaurs and doubly so again ’cause I do work on tyrannosaurs. But yeah, it just dominates conversations.
Lex Fridman
Well, some of the other features maybe we can go through.
Well, some of the other features maybe we can go through.
Dave Hone
Yeah, sure.
Yeah, sure.
Lex Fridman
So big skull, big head, small hands.
So big skull, big head, small hands.
Dave Hone
Massive head, very kind of boxy. It’s very robust. Big forward-facing eyes, massive eyes. Massive. I mean, tennis ball-sized eyes. These things had amazing eyesight. Yeah. Giant teeth. There’s a cast of a—
Massive head, very kind of boxy. It’s very robust. Big forward-facing eyes, massive eyes. Massive. I mean, tennis ball-sized eyes. These things had amazing eyesight. Yeah. Giant teeth. There’s a cast of a—
Lex Fridman
What?
What?
Dave Hone
…Tyrannosaurus rex tooth.
…Tyrannosaurus rex tooth.
Lex Fridman
What?
What?
Dave Hone
Yeah, I know. So-
Yeah, I know. So-
Lex Fridman
How…
How…
Dave Hone
It, it, it looks a bit bigger than it is. So this is all root, so this would be stuck in the jaw. This would be supporting it.
It, it, it looks a bit bigger than it is. So this is all root, so this would be stuck in the jaw. This would be supporting it.
Lex Fridman
Right. But that tip part is-
Right. But that tip part is-
Dave Hone
But that-
But that-
Lex Fridman
… that’s the tooth?
… that’s the tooth?
Dave Hone
The, the tip as you call it. And, yeah, you know, so that would comfortably go through pretty much any part.
The, the tip as you call it. And, yeah, you know, so that would comfortably go through pretty much any part.
Lex Fridman
Wow.
Wow.
Dave Hone
And then you realize just how thick it is. So, this is a cast of a thing called Carcharodontosaurus from Africa. You get it down in Niger and a few other places like that. And they’re very, very big, not as big as T. rex, but not a million miles away. And then if you look at the teeth in profile, they’re a surprisingly similar shape, and not far off in size as well. And then you look at them that way on, and you realize it’s a third of the width. So this isn’t just massive, it’s thick. And of course, being thick, it makes it strong. And with that giant head, with all that extra bone and then all the extra musculature attached to that giant head, they’ve got this uber powerful bite and the ability to just chomp through basically anything it wants to.
And then you realize just how thick it is. So, this is a cast of a thing called Carcharodontosaurus from Africa. You get it down in Niger and a few other places like that. And they’re very, very big, not as big as T. rex, but not a million miles away. And then if you look at the teeth in profile, they’re a surprisingly similar shape, and not far off in size as well. And then you look at them that way on, and you realize it’s a third of the width. So this isn’t just massive, it’s thick. And of course, being thick, it makes it strong. And with that giant head, with all that extra bone and then all the extra musculature attached to that giant head, they’ve got this uber powerful bite and the ability to just chomp through basically anything it wants to.
Dave Hone
So, yeah, they are truly unusual in that regard, even actually compared to a lot of the other very big tyrannosaurs; they’re often a kind of step above in their proportions.
So, yeah, they are truly unusual in that regard, even actually compared to a lot of the other very big tyrannosaurs; they’re often a kind of step above in their proportions.
Lex Fridman
So, incredible crushing power in the jaw?
So, incredible crushing power in the jaw?
Dave Hone
Yeah. And then, as you say, like this really short bull neck, because you’ve got this massive weight of this head up front that you need to hold it up and not tip forwards. Really quite a massive body. Again, there’s two or three other big carnivorous dinosaurs which people argue, “Oh, maybe they’re a little bigger than T. rex, maybe they’re a little smaller,” but it’s always in terms of length, which is one way of looking at things. You know, pythons are very long, but they’re nothing like as massive as a lion or a tiger. Same thing. T. rex is massive. It is built. So, really big, kind of barrel-shaped chest, making the body very, very big as well.
Yeah. And then, as you say, like this really short bull neck, because you’ve got this massive weight of this head up front that you need to hold it up and not tip forwards. Really quite a massive body. Again, there’s two or three other big carnivorous dinosaurs which people argue, “Oh, maybe they’re a little bigger than T. rex, maybe they’re a little smaller,” but it’s always in terms of length, which is one way of looking at things. You know, pythons are very long, but they’re nothing like as massive as a lion or a tiger. Same thing. T. rex is massive. It is built. So, really big, kind of barrel-shaped chest, making the body very, very big as well.
Dave Hone
And so that’s why, yeah, there’s things like Giganotosaurus and Mapusaurus from South America, maybe they get a bit longer, another meter or so in length. But in mass, we’re talking about maybe only two-thirds, three-quarters. So, T. rex is just massively bigger than basically any other big carnivore we know of. And then, yeah, little arms as you say. So, this is a, not great, but it’s a cast of a T. rex arm. It’s not the biggest animal. They do get a bit bigger than this. But as I love showing, it’s not a million miles off the size of my own. And I could do with a diet, but I don’t weigh seven tons. So, yeah, it really is really pretty small.
And so that’s why, yeah, there’s things like Giganotosaurus and Mapusaurus from South America, maybe they get a bit longer, another meter or so in length. But in mass, we’re talking about maybe only two-thirds, three-quarters. So, T. rex is just massively bigger than basically any other big carnivore we know of. And then, yeah, little arms as you say. So, this is a, not great, but it’s a cast of a T. rex arm. It’s not the biggest animal. They do get a bit bigger than this. But as I love showing, it’s not a million miles off the size of my own. And I could do with a diet, but I don’t weigh seven tons. So, yeah, it really is really pretty small.
Lex Fridman
Two claws, two fingers.
Two claws, two fingers.
Dave Hone
Yeah, so two fingers. You will see sometimes that they say there’s a third, this is a slight misnomer. So, you do see this extra little bone here? This doesn’t turn up in all of them, and it’s an extra hand bone. So it’s these, the metacarpals, but it’s not supporting an extra digit.
Yeah, so two fingers. You will see sometimes that they say there’s a third, this is a slight misnomer. So, you do see this extra little bone here? This doesn’t turn up in all of them, and it’s an extra hand bone. So it’s these, the metacarpals, but it’s not supporting an extra digit.
Lex Fridman
So, mostly, functionality-wise, it wasn’t very functional.
So, mostly, functionality-wise, it wasn’t very functional.
Dave Hone
They’re not doing very much at all. You know, this is what’s called the deltopectoral crest. It’s really important for basically big arm movements, because it’s deltoids and pectorals. The radius and ulna are really quite thin, thinner than ours. The fingers are pretty stocky. The claws look big and curved, and they are, but other tyrannosaurs, and indeed other carnivores generally, have much more curved claws. And then they have these little things—oh, where can I show it? There, there you can see there’s a little mark. That’s a ligamentous pit. And so, what you can imagine is if you’re trying to hold onto something and something’s wriggling, you want grip.
They’re not doing very much at all. You know, this is what’s called the deltopectoral crest. It’s really important for basically big arm movements, because it’s deltoids and pectorals. The radius and ulna are really quite thin, thinner than ours. The fingers are pretty stocky. The claws look big and curved, and they are, but other tyrannosaurs, and indeed other carnivores generally, have much more curved claws. And then they have these little things—oh, where can I show it? There, there you can see there’s a little mark. That’s a ligamentous pit. And so, what you can imagine is if you’re trying to hold onto something and something’s wriggling, you want grip.
Dave Hone
And there’s a risk that you’ll just dislocate your fingers. So we have ligaments that hold bone to bone. And if you just put it flat to flat surface area, there’s only so much you can attach, whereas if you turn that into a little hemispherical dip, you get a lot more surface area for your area. If that makes sense.
And there’s a risk that you’ll just dislocate your fingers. So we have ligaments that hold bone to bone. And if you just put it flat to flat surface area, there’s only so much you can attach, whereas if you turn that into a little hemispherical dip, you get a lot more surface area for your area. If that makes sense.
Dave Hone
So if you have a really big ligamentous pit, it means there’s a really big ligament, which means your fingers are really strong and they’re really resistant to being wiggled around and pulled, as if, you know, you’ve grabbed something that doesn’t want you to kill it. Well, T. rex has probably the smallest ligamentous pits of any tyrannosaur. So that kind of suggests it’s not doing very much. And again, when you look at the claws, proportionally, they’re not that big and they’re not that curved. So even though it looks like quite a wicked thing to us, remember, put this on a seven-ton animal whose individual teeth are the size of entire fingers. Suddenly that arm doesn’t look like it’s doing very much.
So if you have a really big ligamentous pit, it means there’s a really big ligament, which means your fingers are really strong and they’re really resistant to being wiggled around and pulled, as if, you know, you’ve grabbed something that doesn’t want you to kill it. Well, T. rex has probably the smallest ligamentous pits of any tyrannosaur. So that kind of suggests it’s not doing very much. And again, when you look at the claws, proportionally, they’re not that big and they’re not that curved. So even though it looks like quite a wicked thing to us, remember, put this on a seven-ton animal whose individual teeth are the size of entire fingers. Suddenly that arm doesn’t look like it’s doing very much.
Lex Fridman
What about the feet?
What about the feet?
Dave Hone
So massive. Again, not surprisingly, you’re supporting a colossal amount of weight. But they have this beautiful adaptation in the foot. So the equivalent bones in the foot, the metatarsals, for us make up the flat of the feet. But these animals walk like birds, they got three toes on the ground, and then the metatarsals stick nearly vertically. That overall extends the length of the leg, so you can walk a little bit faster. You get a slightly bigger stride length. Don’t worry, I’ve got the right bone here.
So massive. Again, not surprisingly, you’re supporting a colossal amount of weight. But they have this beautiful adaptation in the foot. So the equivalent bones in the foot, the metatarsals, for us make up the flat of the feet. But these animals walk like birds, they got three toes on the ground, and then the metatarsals stick nearly vertically. That overall extends the length of the leg, so you can walk a little bit faster. You get a slightly bigger stride length. Don’t worry, I’ve got the right bone here.
Lex Fridman
Nice.
Nice.
Dave Hone
But, they also have… Yeah, there’s a good one. That one’s a great one. But they also have this really neat adaptation in the middle bone. So, you can see it on this one quite well, and this is actually not a tyrannosaur, this is an ornithomimosaur, so one of the really ostrich-like ones, Gallimimus from the first Jurassic Park. It has the same thing. You can see the normal bones would be really quite long and square and then flat at the top. And instead, this thing shrinks in the middle and turns into this kind of flattened diamond shape. And what that means is the bones either side kind of lock it. In fact, at the top end, it actually tends to wiggle a bit, so it actually goes left and then right.
But, they also have… Yeah, there’s a good one. That one’s a great one. But they also have this really neat adaptation in the middle bone. So, you can see it on this one quite well, and this is actually not a tyrannosaur, this is an ornithomimosaur, so one of the really ostrich-like ones, Gallimimus from the first Jurassic Park. It has the same thing. You can see the normal bones would be really quite long and square and then flat at the top. And instead, this thing shrinks in the middle and turns into this kind of flattened diamond shape. And what that means is the bones either side kind of lock it. In fact, at the top end, it actually tends to wiggle a bit, so it actually goes left and then right.
Dave Hone
And of course, what that really does is then help these things lock together. And so this is an adaptation to basically lock the foot and make it stable, and we see it in a whole bunch of things, independently evolved. Early tyrannosaurs don’t have this. Early ornithomimosaurs don’t have this. The oviraptodiraurs, the early ones don’t have this, and the later ones acquire it, and a couple of other groups as well. And it’s about making the foot stable. And what that really does is make the foot energy efficient. So you can imagine as an animal, you know, we have some cartilage, and we’ve got some ligaments and tendons joining all the bones together and holding joints stable.
And of course, what that really does is then help these things lock together. And so this is an adaptation to basically lock the foot and make it stable, and we see it in a whole bunch of things, independently evolved. Early tyrannosaurs don’t have this. Early ornithomimosaurs don’t have this. The oviraptodiraurs, the early ones don’t have this, and the later ones acquire it, and a couple of other groups as well. And it’s about making the foot stable. And what that really does is make the foot energy efficient. So you can imagine as an animal, you know, we have some cartilage, and we’ve got some ligaments and tendons joining all the bones together and holding joints stable.
Dave Hone
When you push down, that’s going to compress them to a little degree, and when you lift that weight off, they’re actually going to spring back. You’re going to get a tiny little energy return. It’s the idea of those air soles they put in all the trainers and stuff in the 90s. It’s that same principle. And you will, you’ll get a little bit of energy return, but of course, big force, particularly for a big, heavy animal, it’s going to take the kind of path of least resistance. And so if your bones are all kind of loose in the foot, what they’re going to do is they’re going to tend to splay out, and you’re actually going to lose that energy.
When you push down, that’s going to compress them to a little degree, and when you lift that weight off, they’re actually going to spring back. You’re going to get a tiny little energy return. It’s the idea of those air soles they put in all the trainers and stuff in the 90s. It’s that same principle. And you will, you’ll get a little bit of energy return, but of course, big force, particularly for a big, heavy animal, it’s going to take the kind of path of least resistance. And so if your bones are all kind of loose in the foot, what they’re going to do is they’re going to tend to splay out, and you’re actually going to lose that energy.
Dave Hone
But if you lock the feet together, the bones can’t move and instead, that’s going to further compress those soft tissue bits and give you a bit more spring.
But if you lock the feet together, the bones can’t move and instead, that’s going to further compress those soft tissue bits and give you a bit more spring.
Lex Fridman
And this is all about… I mean, this is about the mobility, about the dynamics of the movement.
And this is all about… I mean, this is about the mobility, about the dynamics of the movement.
Dave Hone
It makes you more efficient. It means you’re putting less energy in to walk, because you’re just getting a little bit of spring of every single step.
It makes you more efficient. It means you’re putting less energy in to walk, because you’re just getting a little bit of spring of every single step.
Lex Fridman
I should say that I deeply admire people like Russ Tedrake, like the Boston Dynamics teams, like the Tesla Optimus robot teams that look at bipedal and quadrupedal robot movement. And they try to make human-like movement to, you know, basically efficient movement. And so the question here is, how the hell is a T-rex its size, bipedal, able to move as a predator? It’s a weird body shape, is it not?
I should say that I deeply admire people like Russ Tedrake, like the Boston Dynamics teams, like the Tesla Optimus robot teams that look at bipedal and quadrupedal robot movement. And they try to make human-like movement to, you know, basically efficient movement. And so the question here is, how the hell is a T-rex its size, bipedal, able to move as a predator? It’s a weird body shape, is it not?
Dave Hone
I mean, the big head makes it look more odd, but you look at dinosaurs as a whole, and over a third, probably 40, 45% is the group called theropods, which were all bipeds. So T-rex, Allosaurus, Velociraptor, Spinosaurus, many, many others that people may have heard of, they’re all bipeds built in this way. There’s a whole bunch of ancestral groups which were doing something very similar, including various crocodiles or relatives of crocodiles, and then the birds are bipeds. Birds are actually doing it in a much weirder way than theropods are. The theropods are basically a lizard on its back legs. I’m oversimplifying a lot. I can hear paleontologists screaming, as I’ve just said, “It’s a lizard standing up.” It’s not a lizard standing up.
I mean, the big head makes it look more odd, but you look at dinosaurs as a whole, and over a third, probably 40, 45% is the group called theropods, which were all bipeds. So T-rex, Allosaurus, Velociraptor, Spinosaurus, many, many others that people may have heard of, they’re all bipeds built in this way. There’s a whole bunch of ancestral groups which were doing something very similar, including various crocodiles or relatives of crocodiles, and then the birds are bipeds. Birds are actually doing it in a much weirder way than theropods are. The theropods are basically a lizard on its back legs. I’m oversimplifying a lot. I can hear paleontologists screaming, as I’ve just said, “It’s a lizard standing up.” It’s not a lizard standing up.
Dave Hone
But they’re doing a lot of the same stuff in the same way, and that is really functionally about where you put muscles, because what you really want to do to walk forwards is you want to basically pull the leg back so that you’re pushing the body off.
But they’re doing a lot of the same stuff in the same way, and that is really functionally about where you put muscles, because what you really want to do to walk forwards is you want to basically pull the leg back so that you’re pushing the body off.
Dave Hone
And the way they do that is the musculature on the tail. So we don’t have a tail, and indeed mammals that even do have a tail, you know, elephants and even lions, it’s a piddly little thing. There’s not a lot of muscle there. But if you look at a lizard, particularly if you look at something like a crocodile, you see this massive, massive block of muscle sitting on the first third to half of the tail. And that’s what dinosaurs are doing. It’s the same thing as lizards and crocs. They have this giant set of muscles on the first half of the tail that’s anchoring on the femur, so the thigh bone, on the back of that, and muscles contract. That’s the one thing they do. But now you’ve got a giant muscle. Yeah, and T-rex, this muscle is like two and a half, three meters long.
And the way they do that is the musculature on the tail. So we don’t have a tail, and indeed mammals that even do have a tail, you know, elephants and even lions, it’s a piddly little thing. There’s not a lot of muscle there. But if you look at a lizard, particularly if you look at something like a crocodile, you see this massive, massive block of muscle sitting on the first third to half of the tail. And that’s what dinosaurs are doing. It’s the same thing as lizards and crocs. They have this giant set of muscles on the first half of the tail that’s anchoring on the femur, so the thigh bone, on the back of that, and muscles contract. That’s the one thing they do. But now you’ve got a giant muscle. Yeah, and T-rex, this muscle is like two and a half, three meters long.
Dave Hone
It’s going to be like this wide in the middle. So when that contracts, the leg goes back, the foot’s stationary on the ground, so the animal goes forwards.
It’s going to be like this wide in the middle. So when that contracts, the leg goes back, the foot’s stationary on the ground, so the animal goes forwards.
Lex Fridman
So the tail is…
So the tail is…
Dave Hone
Integral to movement.
Integral to movement.
Lex Fridman
…so it’s a huge part of the biomechanics of the movement.
…so it’s a huge part of the biomechanics of the movement.
Dave Hone
Yeah. We do it with the butt. So we’re kind of weirdly how we organize our muscles. But there’s a… this is generally probably a better way of doing it, because you can get a really long muscle. And of course, the longer the muscle, the more contraction you can have. The hyper version of this is kangaroos. So kangaroos supposedly get more efficient the faster they move. They get so much energy return that when they’re moving faster, they get more compression from the landing, meaning they get more spring.
Yeah. We do it with the butt. So we’re kind of weirdly how we organize our muscles. But there’s a… this is generally probably a better way of doing it, because you can get a really long muscle. And of course, the longer the muscle, the more contraction you can have. The hyper version of this is kangaroos. So kangaroos supposedly get more efficient the faster they move. They get so much energy return that when they’re moving faster, they get more compression from the landing, meaning they get more spring.
Lex Fridman
So we should be imagining this gigantic thick tail, big body- … big head- … and biped, and how fast does it move?
So we should be imagining this gigantic thick tail, big body- … big head- … and biped, and how fast does it move?
Dave Hone
So this is one of those things that’s gone backwards and forwards and backwards and forwards. There was a paper arguing that we’d probably been overestimating various speeds, primarily based on footprints. There’s been, I don’t know how many papers trying to do T-rex speed. The most recent one that was pretty detailed, I think, had it clocked at… So I think it was 25 miles an hour, so 40 kph was the very upper end of the estimate. So probably a bit less than that.
So this is one of those things that’s gone backwards and forwards and backwards and forwards. There was a paper arguing that we’d probably been overestimating various speeds, primarily based on footprints. There’s been, I don’t know how many papers trying to do T-rex speed. The most recent one that was pretty detailed, I think, had it clocked at… So I think it was 25 miles an hour, so 40 kph was the very upper end of the estimate. So probably a bit less than that.
Lex Fridman
Well, that means it can move.
Well, that means it can move.
Dave Hone
Yeah. That’s the thing. Big things move quickly. I’ve seen rhino and hippo going at full tilt, and yeah, they’re a lot quicker than you’d think. At least part of it is simply stride length. When your legs are three-ish meters long, it’s hard not to cover a lot of ground with a single step. And yeah, big theropods, T-rex, is going to be a power walker. It’s not going to run in the conventional biomechanical sense where both feet are off the ground at once.
Yeah. That’s the thing. Big things move quickly. I’ve seen rhino and hippo going at full tilt, and yeah, they’re a lot quicker than you’d think. At least part of it is simply stride length. When your legs are three-ish meters long, it’s hard not to cover a lot of ground with a single step. And yeah, big theropods, T-rex, is going to be a power walker. It’s not going to run in the conventional biomechanical sense where both feet are off the ground at once.
Lex Fridman
So it’s not running. It’s power walking.
So it’s not running. It’s power walking.
Dave Hone
Yeah. But when you’ve got a four or five-meter-long stride, it doesn’t really matter whether you’re airborne or not.
Yeah. But when you’ve got a four or five-meter-long stride, it doesn’t really matter whether you’re airborne or not.
Lex Fridman
Power walking, so you’re never… Or running, there are moments in time when both feet are off the ground, and you’re saying likely here one foot is always on the ground.
Power walking, so you’re never… Or running, there are moments in time when both feet are off the ground, and you’re saying likely here one foot is always on the ground.
Dave Hone
Yeah, pretty much has to be for loading.
Yeah, pretty much has to be for loading.
Lex Fridman
Oh, just because of the mass of the thing? Okay. All right.
Oh, just because of the mass of the thing? Okay. All right.
Dave Hone
You know, that’s the origin of cinema?
You know, that’s the origin of cinema?
Lex Fridman
What’s that?
What’s that?
Dave Hone
It’s where… This is Eadweard Muybridge. So the origin of cinema was a bet as to whether or not, whilst running, a horse had all four feet off the ground. And no one really knew this for sure. And a guy called Eadweard Muybridge, he was British, but he was living in the States. He was a keen photographer, and he basically did what people have seen the Wachowskis do for The Matrix. He set up a whole row of cameras and set up a whole bunch of triggers and had a horse run through them, so it took loads of photos. And lo and behold, in one of them, the feet were off the ground. The guy won his bet. But he also realized that we already had things like zoopraxiscopes, you know, the little thing you spin with a slit?
It’s where… This is Eadweard Muybridge. So the origin of cinema was a bet as to whether or not, whilst running, a horse had all four feet off the ground. And no one really knew this for sure. And a guy called Eadweard Muybridge, he was British, but he was living in the States. He was a keen photographer, and he basically did what people have seen the Wachowskis do for The Matrix. He set up a whole row of cameras and set up a whole bunch of triggers and had a horse run through them, so it took loads of photos. And lo and behold, in one of them, the feet were off the ground. The guy won his bet. But he also realized that we already had things like zoopraxiscopes, you know, the little thing you spin with a slit?
Dave Hone
So you see that… Right. So he did that with horses. And now you have a moving photograph. And that’s pretty much the origin of cinema. …A bet about biomechanics.
So you see that… Right. So he did that with horses. And now you have a moving photograph. And that’s pretty much the origin of cinema. …A bet about biomechanics.
Lex Fridman
Yeah, it’s always a good question and a bet, and there you go. You’re off to the races. All right, all right, so we’re standing in front of this thing. How screwed are we, you and I? We’re back in the time of the dinosaurs. What’s the probability of our survival?
Yeah, it’s always a good question and a bet, and there you go. You’re off to the races. All right, all right, so we’re standing in front of this thing. How screwed are we, you and I? We’re back in the time of the dinosaurs. What’s the probability of our survival?
Dave Hone
There’s two big things to weigh up which are gonna be interesting, which is, would they even consider us a potential meal? Because we know that animals have to learn stuff. And so animals that have never encountered things before often don’t have a response because they don’t know what their response should be.
There’s two big things to weigh up which are gonna be interesting, which is, would they even consider us a potential meal? Because we know that animals have to learn stuff. And so animals that have never encountered things before often don’t have a response because they don’t know what their response should be.
Lex Fridman
We should say during that time, there was not something that looked like primates.
We should say during that time, there was not something that looked like primates.
Dave Hone
No. Absolutely nothing. We, we…
No. Absolutely nothing. We, we…
Lex Fridman
So we would look very weird, right?
So we would look very weird, right?
Dave Hone
We would look weird, yeah. So, you know, there are lots of really cool records, particularly you’ve got down in Indonesia and stuff, where you’ve got these insane volcanic spires, and it leads to these tiny little valleys. And people go in there, and they go, “Yeah, the animals walk up to us.” They’ve never seen a human. They don’t know what it is. So it might look at us, and animals are fundamentally cautious. It doesn’t know if we’re a threat. So maybe it might just find us weird or in some way, shape, or form off-putting, and so we may not even be considered on the menu. The other thing is we might be too small. My suspicion is we’re not.
We would look weird, yeah. So, you know, there are lots of really cool records, particularly you’ve got down in Indonesia and stuff, where you’ve got these insane volcanic spires, and it leads to these tiny little valleys. And people go in there, and they go, “Yeah, the animals walk up to us.” They’ve never seen a human. They don’t know what it is. So it might look at us, and animals are fundamentally cautious. It doesn’t know if we’re a threat. So maybe it might just find us weird or in some way, shape, or form off-putting, and so we may not even be considered on the menu. The other thing is we might be too small. My suspicion is we’re not.
Dave Hone
So animals, carnivores typically take stuff that is much, much smaller than them, despite basically every dinosaur documentary movie ever showing T-rex hunting an adult Triceratops, which is the same size as it. And every documentary, you’ve got to have lions taking down a wildebeest or even a buffalo. These are weird and rare outcomes. These don’t usually happen. The vast majority of active predation is on stuff much, much, much smaller than you. I totted some of this up for a paper I did on Microraptor, this really small gliding dinosaur from China, where we actually have a bunch of specimens with various stomach contents in them. And we were coming up with numbers of about 5 to 20% of the mass being typical, so prey versus predator.
So animals, carnivores typically take stuff that is much, much smaller than them, despite basically every dinosaur documentary movie ever showing T-rex hunting an adult Triceratops, which is the same size as it. And every documentary, you’ve got to have lions taking down a wildebeest or even a buffalo. These are weird and rare outcomes. These don’t usually happen. The vast majority of active predation is on stuff much, much, much smaller than you. I totted some of this up for a paper I did on Microraptor, this really small gliding dinosaur from China, where we actually have a bunch of specimens with various stomach contents in them. And we were coming up with numbers of about 5 to 20% of the mass being typical, so prey versus predator.
Dave Hone
And that’s actually very similar to what we see with modern carnivores, and it’s not far off what we’ve seen even with things like tyrannosaurs, where you occasionally find consumed bones from prey. So if we put the lower end of that as 5% of the mass of a T-rex, we might actually be okay. If it doesn’t consider us worth the hassle, then assuming you’re encountering a big adult and not a half-size one that maybe only weighs a ton, then we might be all right.
And that’s actually very similar to what we see with modern carnivores, and it’s not far off what we’ve seen even with things like tyrannosaurs, where you occasionally find consumed bones from prey. So if we put the lower end of that as 5% of the mass of a T-rex, we might actually be okay. If it doesn’t consider us worth the hassle, then assuming you’re encountering a big adult and not a half-size one that maybe only weighs a ton, then we might be all right.
Lex Fridman
What would be the survival strategy? So there’s a thing that you criticized not being true that I guess in Jurassic Park is not moving.
What would be the survival strategy? So there’s a thing that you criticized not being true that I guess in Jurassic Park is not moving.
Dave Hone
Yeah, it’s nonsense. They can see really well. Like I said, T-rex has giant eyeballs. People don’t realize that because like whales and like elephants, it looks small compared to the size of the animal, but what you’re… And really important for vision is absolute size, not proportional size. And absolutely their eyes are gigantic.
Yeah, it’s nonsense. They can see really well. Like I said, T-rex has giant eyeballs. People don’t realize that because like whales and like elephants, it looks small compared to the size of the animal, but what you’re… And really important for vision is absolute size, not proportional size. And absolutely their eyes are gigantic.
Lex Fridman
Probably the biggest on Earth at that time.
Probably the biggest on Earth at that time.
Dave Hone
Yeah. A guy called Kent Stevens did a paper, and he’s got a really nice graphic of it. If you just put S-T-E-V-E-N-S T-rex… It’s the one with the… There we go. It’s the one with the googly eyes. That’s a baseball or a tennis ball-sized eyeball. And when you think about the incredible visual acuity of something like an eagle, which has eyes not much bigger than ours, think about what that’s going to do. And we absolutely know, there’s been loads of studies on this in mammals and birds and other things as well, that basically eyeball size correlates with visual acuity. And that can fold in two different ways. It can be general sharpness, like, how well can you see a long way away? So eagles and vultures, it’s really important. Or it can be good in low light.
Yeah. A guy called Kent Stevens did a paper, and he’s got a really nice graphic of it. If you just put S-T-E-V-E-N-S T-rex… It’s the one with the… There we go. It’s the one with the googly eyes. That’s a baseball or a tennis ball-sized eyeball. And when you think about the incredible visual acuity of something like an eagle, which has eyes not much bigger than ours, think about what that’s going to do. And we absolutely know, there’s been loads of studies on this in mammals and birds and other things as well, that basically eyeball size correlates with visual acuity. And that can fold in two different ways. It can be general sharpness, like, how well can you see a long way away? So eagles and vultures, it’s really important. Or it can be good in low light.
Lex Fridman
And I now discover that there’s a Nature Was Metal- … subreddit-
And I now discover that there’s a Nature Was Metal- … subreddit-
Dave Hone
On Reddit, yeah, yeah, for-
On Reddit, yeah, yeah, for-
Lex Fridman
… which is looking at-
… which is looking at-
Dave Hone
… gnarly, gnarly paleo things. Yeah, I come across it occasionally.
… gnarly, gnarly paleo things. Yeah, I come across it occasionally.
Lex Fridman
For dinosaurs, let’s see what’s the top post of all time.
For dinosaurs, let’s see what’s the top post of all time.
Dave Hone
Oh, that’s a glyptodontid.
Oh, that’s a glyptodontid.
Lex Fridman
An Argentinean farmer recently found a 20,000-year-old fossilized glyptodont.
An Argentinean farmer recently found a 20,000-year-old fossilized glyptodont.
Dave Hone
So these are giant armadillo-like animals with club tails.
So these are giant armadillo-like animals with club tails.
Lex Fridman
Interesting. Wow.
Interesting. Wow.
Dave Hone
Oh, that’s Black Beauty, and that’s at the Royal Tyrrell Museum. So, giant eyeballs, they can either see very well, they can see a very long way in daylight, or they can see very well at night. And my suspicion is it’s the latter. I think they’re probably primarily nocturnal when they get that size.
Oh, that’s Black Beauty, and that’s at the Royal Tyrrell Museum. So, giant eyeballs, they can either see very well, they can see a very long way in daylight, or they can see very well at night. And my suspicion is it’s the latter. I think they’re probably primarily nocturnal when they get that size.
Lex Fridman
Well, not moving might be a good strategy because it’s cautious, because it doesn’t understand what these… …Primates are.
Well, not moving might be a good strategy because it’s cautious, because it doesn’t understand what these… …Primates are.
Dave Hone
Yeah. But I think if it starts coming towards you… If you’re truly in the open, then you’re in real trouble and I’m not sure what you do. I mean, the one thing, the one advantage humans have over almost anything else on Earth, there’s a handful of exceptions, is we have range. I can pick up a rock and hurl it with reasonable accuracy. Most things can’t do that, and animals probably don’t like being hit in the face or hit in the eyes with a rock at a range because, again, they’re not going to know how it’s happened or how to respond to this. All they know is they’re taking damage.
Yeah. But I think if it starts coming towards you… If you’re truly in the open, then you’re in real trouble and I’m not sure what you do. I mean, the one thing, the one advantage humans have over almost anything else on Earth, there’s a handful of exceptions, is we have range. I can pick up a rock and hurl it with reasonable accuracy. Most things can’t do that, and animals probably don’t like being hit in the face or hit in the eyes with a rock at a range because, again, they’re not going to know how it’s happened or how to respond to this. All they know is they’re taking damage.
Lex Fridman
Yeah.
Yeah.
Dave Hone
…and that’s bad. And that, that might genuinely be enough to do it. I wouldn’t want to try, but again, if I was dumped on a plain or a prairie with nothing else but a T-rex that was interested in me, it’s worth a shot. If you’re in the forest, I would try and get behind a tree. They’re quite good at turning. There’s been a couple of nice papers looking at the mechanics of the foot and the ankle and how quickly they could pivot, but we’re much better because we’re just so much smaller. So it would be very kind of Looney Tunes, but I think you could go round and round a big tree… …Much faster than it could. And so- …it’s going to get bored or lack interest sooner or later.
…and that’s bad. And that, that might genuinely be enough to do it. I wouldn’t want to try, but again, if I was dumped on a plain or a prairie with nothing else but a T-rex that was interested in me, it’s worth a shot. If you’re in the forest, I would try and get behind a tree. They’re quite good at turning. There’s been a couple of nice papers looking at the mechanics of the foot and the ankle and how quickly they could pivot, but we’re much better because we’re just so much smaller. So it would be very kind of Looney Tunes, but I think you could go round and round a big tree… …Much faster than it could. And so- …it’s going to get bored or lack interest sooner or later.
T-Rex’s hunting strategies
Lex Fridman
So let’s zoom out. What did it eat?
So let’s zoom out. What did it eat?
Dave Hone
I mean, you could go for the classic joke of whatever it wanted, but the reality is the relatively big herbivores that are around at the time, it’s probably largely leaving them alone because, again, just the classic dynamics of predators, even superpredators like Tyrannosaurus, they’re still real animals. If you get injured and you can’t hunt, that’s probably the end of you. So you don’t want to tackle an adult Triceratops that weighs the same as you and has meter, meter and a half long horns on its head and is potentially pretty aggressive. And then even the big hadrosaurs, the kind of classic duck-billed dinosaurs, they’re not present with any obvious defenses. They don’t have armor.
I mean, you could go for the classic joke of whatever it wanted, but the reality is the relatively big herbivores that are around at the time, it’s probably largely leaving them alone because, again, just the classic dynamics of predators, even superpredators like Tyrannosaurus, they’re still real animals. If you get injured and you can’t hunt, that’s probably the end of you. So you don’t want to tackle an adult Triceratops that weighs the same as you and has meter, meter and a half long horns on its head and is potentially pretty aggressive. And then even the big hadrosaurs, the kind of classic duck-billed dinosaurs, they’re not present with any obvious defenses. They don’t have armor.
Dave Hone
They don’t have horns or spikes or anything like this, but they’re simply massive. Again, yes, T-rex has got the teeth and the bite, and even if they’re a bit rubbish with the claws on the hands, but just grappling another animal which is the same size as it, there’s a risk you’re going to get a foot trodden on, that it’s going to get off some kind of body slam or whatever. And then even if you do bring it down, you’re never going to eat it. If you bring down an animal that weighs five tons, it’s nearly your own mass. You’re not going to eat it before it goes rotten. That’s a huge amount of not like wasted energy, but you’ve probably put a lot of effort into this and you’re not getting that much reward out.
They don’t have horns or spikes or anything like this, but they’re simply massive. Again, yes, T-rex has got the teeth and the bite, and even if they’re a bit rubbish with the claws on the hands, but just grappling another animal which is the same size as it, there’s a risk you’re going to get a foot trodden on, that it’s going to get off some kind of body slam or whatever. And then even if you do bring it down, you’re never going to eat it. If you bring down an animal that weighs five tons, it’s nearly your own mass. You’re not going to eat it before it goes rotten. That’s a huge amount of not like wasted energy, but you’ve probably put a lot of effort into this and you’re not getting that much reward out.
Dave Hone
And again, there are exceptions. You’ve got things like lynx, the classic one. Lynx are not very big cats, and yet they’ll hunt adult deer way bigger than them. Lions hunt things like buffalo, but they’re operating in a group, so it’s a bit of a cheat. So there are some things that do this, but fundamentally, the vast majority of carnivores tackle stuff that’s way, way smaller than them, and that’s what we see. Every record we have of basically any large carnivorous dinosaur where you have stomach contents, whether it’s like consumed something or healed bite marks, we get quite a few.
And again, there are exceptions. You’ve got things like lynx, the classic one. Lynx are not very big cats, and yet they’ll hunt adult deer way bigger than them. Lions hunt things like buffalo, but they’re operating in a group, so it’s a bit of a cheat. So there are some things that do this, but fundamentally, the vast majority of carnivores tackle stuff that’s way, way smaller than them, and that’s what we see. Every record we have of basically any large carnivorous dinosaur where you have stomach contents, whether it’s like consumed something or healed bite marks, we get quite a few.
Dave Hone
There’s a handful of them where there’s obvious damage to a bone, in more than a couple of cases with a tooth broken off in the bone, and then the bone has healed over it, so you know, it got away. They’re juveniles. They’re relatively young animals.
There’s a handful of them where there’s obvious damage to a bone, in more than a couple of cases with a tooth broken off in the bone, and then the bone has healed over it, so you know, it got away. They’re juveniles. They’re relatively young animals.
Dave Hone
And that’s what they’re targeting. It makes ecological sense. It’s what modern animals do for very good reason. Juveniles are relatively small and weak. They don’t have the horns or frills or armor or shields and other stuff. They’re naive. They often have to learn what predators are, or you have to learn how to avoid them or to check the wind or even physically see them, or see them kill something else before you know that they’re a threat. And juveniles forage badly. They’re relatively inefficient, so actually they need to eat more for their size than an adult does. And then on top of that, they’re not very experienced at foraging in the right areas. And even if they can find a good patch, the adults will often beat them up and chase them off.
And that’s what they’re targeting. It makes ecological sense. It’s what modern animals do for very good reason. Juveniles are relatively small and weak. They don’t have the horns or frills or armor or shields and other stuff. They’re naive. They often have to learn what predators are, or you have to learn how to avoid them or to check the wind or even physically see them, or see them kill something else before you know that they’re a threat. And juveniles forage badly. They’re relatively inefficient, so actually they need to eat more for their size than an adult does. And then on top of that, they’re not very experienced at foraging in the right areas. And even if they can find a good patch, the adults will often beat them up and chase them off.
Lex Fridman
You’re talking about juveniles across various species?
You’re talking about juveniles across various species?
Dave Hone
Everything. This is just a universal pattern of being a smaller animal versus a larger, or a younger animal versus a larger animal.
Everything. This is just a universal pattern of being a smaller animal versus a larger, or a younger animal versus a larger animal.
Lex Fridman
So, so hunting young, uh-
So, so hunting young, uh-
Dave Hone
Young things.
Young things.
Lex Fridman
… young things is easier.
… young things is easier.
Dave Hone
Yeah because-
Yeah because-
Lex Fridman
Because they’re dumb.
Because they’re dumb.
Dave Hone
Right. They’re dumb, but they’re inexperienced.
Right. They’re dumb, but they’re inexperienced.
Lex Fridman
Inexperienced.
Inexperienced.
Dave Hone
But they’re often feeding in suboptimal areas. This is the place with all the best food. The adults will kick you off, so now you have to feed somewhere else. Maybe the food isn’t as good, in which case you need to eat more of it, so it takes longer, or maybe it’s the one next to the edge of the forest where the T-rexes hide. But either way, you’re stuck there, and then you don’t really know what you’re looking for, and you haven’t got the armor, so guess who’s getting eaten? Again, there are lots of exceptions. You can’t have nature without things like that.
But they’re often feeding in suboptimal areas. This is the place with all the best food. The adults will kick you off, so now you have to feed somewhere else. Maybe the food isn’t as good, in which case you need to eat more of it, so it takes longer, or maybe it’s the one next to the edge of the forest where the T-rexes hide. But either way, you’re stuck there, and then you don’t really know what you’re looking for, and you haven’t got the armor, so guess who’s getting eaten? Again, there are lots of exceptions. You can’t have nature without things like that.
Dave Hone
But this is the absolute rule of thumb for how foraging and growth and predation operate across everything from fish to starfish, praying mantises, all the way up to things like big cats via stuff like crocodiles. It’s how it works. So it’d be very weird if it didn’t also operate for dinosaurs. And then, as I say, we’ve actually got the direct evidence for this from bite marks and stomach contents. They’re taking small stuff.
But this is the absolute rule of thumb for how foraging and growth and predation operate across everything from fish to starfish, praying mantises, all the way up to things like big cats via stuff like crocodiles. It’s how it works. So it’d be very weird if it didn’t also operate for dinosaurs. And then, as I say, we’ve actually got the direct evidence for this from bite marks and stomach contents. They’re taking small stuff.
Lex Fridman
Bite marks give a lot of information.
Bite marks give a lot of information.
Dave Hone
Yeah.
Yeah.
Lex Fridman
That’s a powerful signal in paleontology.
That’s a powerful signal in paleontology.
Dave Hone
Yeah, absolutely. I’ve done really quite a lot of work on it, and they can tell you an awful lot if you’ve got the right understanding of the burial conditions, because, a weird thing that I think a lot of people don’t appreciate is you basically can’t take fossils at face value, particularly when you’re trying to get into stuff like behavior and ecology because between the animal dying and the paleontologist digging it up, potentially quite a lot has happened, and that’s where it’s really easy to start misinterpreting things, because if you just go… I had one like this not too long ago where I was an editor on a paper, and the authors had done a pretty good job, to be fair, but it was this discussion of whether or not several animals were together at the time of their death.
Yeah, absolutely. I’ve done really quite a lot of work on it, and they can tell you an awful lot if you’ve got the right understanding of the burial conditions, because, a weird thing that I think a lot of people don’t appreciate is you basically can’t take fossils at face value, particularly when you’re trying to get into stuff like behavior and ecology because between the animal dying and the paleontologist digging it up, potentially quite a lot has happened, and that’s where it’s really easy to start misinterpreting things, because if you just go… I had one like this not too long ago where I was an editor on a paper, and the authors had done a pretty good job, to be fair, but it was this discussion of whether or not several animals were together at the time of their death.
Dave Hone
So multiple theropods together in this quarry. And it’s like, right, but there was loads of debris and you had loads of things like fish scales and other small bones. And it’s like, okay, but this looks like these animals potentially died somewhere else, and then a flood or a river washed them into this bay or a channel, or the water level dropped and they ended up together. But that doesn’t necessarily mean they were together when they died. So just because you’ve got three animals together, what is potentially the story of how they got there?
So multiple theropods together in this quarry. And it’s like, right, but there was loads of debris and you had loads of things like fish scales and other small bones. And it’s like, okay, but this looks like these animals potentially died somewhere else, and then a flood or a river washed them into this bay or a channel, or the water level dropped and they ended up together. But that doesn’t necessarily mean they were together when they died. So just because you’ve got three animals together, what is potentially the story of how they got there?
Lex Fridman
So you have to consider multiple explanations and then try to figure out what is the most likely.
So you have to consider multiple explanations and then try to figure out what is the most likely.
Dave Hone
Yeah, or what can you test with various bits of evidence? So there were some tyrannosaur-inflicted bite marks on a duck bill from Mongolia that I worked on years ago. The specimen was from Mongolia, but it was held in Japan in a Japanese museum. I was working with the Japanese on it, and I’m not a taphonomist, or the study of decay and the history of specimens, and I am in no way, shape, or form a geologist. I did zoology for my degree, but the guys I was working with were really hot on erosion and damage, and they were looking at some of the way the bones had been damaged, and they’re like, “Okay, we’re pretty confident that the bite marks are sitting on top of erosion.”
Yeah, or what can you test with various bits of evidence? So there were some tyrannosaur-inflicted bite marks on a duck bill from Mongolia that I worked on years ago. The specimen was from Mongolia, but it was held in Japan in a Japanese museum. I was working with the Japanese on it, and I’m not a taphonomist, or the study of decay and the history of specimens, and I am in no way, shape, or form a geologist. I did zoology for my degree, but the guys I was working with were really hot on erosion and damage, and they were looking at some of the way the bones had been damaged, and they’re like, “Okay, we’re pretty confident that the bite marks are sitting on top of erosion.”
Lex Fridman
What does that mean?
What does that mean?
Dave Hone
So it means that the animal had died, and it was found in a sand-covered area, but in what would have been a river channel. So this animal has died, washed downstream, ended up on a sandbank. The sand is whipping past because I’ve been in a sandstorm in… …In China. It is not fun, and that’s starting to etch some of the bones and damage them.
So it means that the animal had died, and it was found in a sand-covered area, but in what would have been a river channel. So this animal has died, washed downstream, ended up on a sandbank. The sand is whipping past because I’ve been in a sandstorm in… …In China. It is not fun, and that’s starting to etch some of the bones and damage them.
Lex Fridman
And after that does a bite mark?
And after that does a bite mark?
Dave Hone
After that, you’re getting bite marks coming in. So that…
After that, you’re getting bite marks coming in. So that…
Lex Fridman
Oh, man.
Oh, man.
Dave Hone
…can only be scavenging. That thing has been dead and sitting out for days, possibly weeks, before something came along and chewed on it.
…can only be scavenging. That thing has been dead and sitting out for days, possibly weeks, before something came along and chewed on it.
Lex Fridman
Wow.
Wow.
Dave Hone
It pretty much can’t have happened any other way.
It pretty much can’t have happened any other way.
Lex Fridman
And you have to take these really subtle signals to- … to reconstruct the story.
And you have to take these really subtle signals to- … to reconstruct the story.
Dave Hone
But then you can start piecing some other stuff together. So in this case, the skeleton is pristine. It’s one of the best hadrosaur skeletons out there. It’s certainly the best from Mongolia I’ve ever seen, and all the bite marks are on one bone, the humerus, the upper arm bone. Every mark, we went over the rest of the skeleton, nothing, and then the humerus is chewed to bits. There are bites all over it, but when you look, there are two really distinctive patterns. There are deep circular punctures, and remember what the shape of this thing looks like…
But then you can start piecing some other stuff together. So in this case, the skeleton is pristine. It’s one of the best hadrosaur skeletons out there. It’s certainly the best from Mongolia I’ve ever seen, and all the bite marks are on one bone, the humerus, the upper arm bone. Every mark, we went over the rest of the skeleton, nothing, and then the humerus is chewed to bits. There are bites all over it, but when you look, there are two really distinctive patterns. There are deep circular punctures, and remember what the shape of this thing looks like…
Lex Fridman
Yeah.
Yeah.
Dave Hone
…at the ends and then along the deltopectoral crest. Okay, it’s much, much bigger in a hadrosaur, but this bit, remember, that’s where all the big muscles attach. There are all these types of–this is from a different bone, different animal, but all these types of close parallel scratches.
…at the ends and then along the deltopectoral crest. Okay, it’s much, much bigger in a hadrosaur, but this bit, remember, that’s where all the big muscles attach. There are all these types of–this is from a different bone, different animal, but all these types of close parallel scratches.
Lex Fridman
Mm-hmm. Wow.
Mm-hmm. Wow.
Dave Hone
And so that looks like selective feeding because it’s using its giant crunchy teeth at the ends to get the bone off, and this is off a buried skeleton, and then it’s got these–actually, T. rex has really small teeth at the front of its mouth, right in the front where our incisors are. They’re called incisiform teeth, they look like incisors. They’re a fraction of the size of the big ones, and they’ve got a really weird flat back. And that’s what these are. It’s hidden this with the front of the mouth and pulling.
And so that looks like selective feeding because it’s using its giant crunchy teeth at the ends to get the bone off, and this is off a buried skeleton, and then it’s got these–actually, T. rex has really small teeth at the front of its mouth, right in the front where our incisors are. They’re called incisiform teeth, they look like incisors. They’re a fraction of the size of the big ones, and they’ve got a really weird flat back. And that’s what these are. It’s hidden this with the front of the mouth and pulling.
Lex Fridman
And that’s mostly for eating?
And that’s mostly for eating?
Dave Hone
Yeah, and that’s why it’s just on the deltpectoral crest, ’cause that’s where all the muscles are. So I always liken it to getting something like an Oreo, and you take the top off, and then you scrape the cream out with your teeth. It- I think most people have done that. Right, but that’s what it’s doing. So it’s got this little row of teeth. And everywhere you get lots of muscle, you get little rows of teeth together pulling.
Yeah, and that’s why it’s just on the deltpectoral crest, ’cause that’s where all the muscles are. So I always liken it to getting something like an Oreo, and you take the top off, and then you scrape the cream out with your teeth. It- I think most people have done that. Right, but that’s what it’s doing. So it’s got this little row of teeth. And everywhere you get lots of muscle, you get little rows of teeth together pulling.
Lex Fridman
So there’s different bite marks for sort of fighting, killing, and then there’s different bite marks for eating.
So there’s different bite marks for sort of fighting, killing, and then there’s different bite marks for eating.
Dave Hone
Yeah, so it kills and dismembers with the big teeth up the side- … and then it feeds with the little front teeth.
Yeah, so it kills and dismembers with the big teeth up the side- … and then it feeds with the little front teeth.
Lex Fridman
And all of that has evidence? In the bones? What hunting strategy does it use? Can we f- figure that out?
And all of that has evidence? In the bones? What hunting strategy does it use? Can we f- figure that out?
Dave Hone
So that comes down to that foot stuff. They’re relatively efficient compared to a lot of other things, and particularly compared to the herbivores, so that means they’re probably looking at long distance rather than speed. And that makes sense because even though the kind of stuff we’re talking about, like I said, maybe they get into 20, 25 miles an hour, that’s pretty quick, but some of the smaller stuff is going to be a lot faster than that. And remember, that’s a real upper estimate. They’re probably not that quick, but yeah, almost…
So that comes down to that foot stuff. They’re relatively efficient compared to a lot of other things, and particularly compared to the herbivores, so that means they’re probably looking at long distance rather than speed. And that makes sense because even though the kind of stuff we’re talking about, like I said, maybe they get into 20, 25 miles an hour, that’s pretty quick, but some of the smaller stuff is going to be a lot faster than that. And remember, that’s a real upper estimate. They’re probably not that quick, but yeah, almost…
Lex Fridman
They’re just jogging after you.
They’re just jogging after you.
Dave Hone
Right, but they’ve got the distance, so yeah, so it’s much more… … A hyena or wolf-like strategy than like a cheetah going for hyper-speed or a lion going for a relatively quick burst, and it either gets you or it doesn’t. And then people kind of then just go, “Well, like, but that’s ridiculous, like, they’re not even that quick,” and it’s like, yeah, but if you’re hunting something big that’s not that quick either, and so that’s a misconception. Like when I’m talking about juvenile dinosaurs, I don’t mean just out of the egg and weigh a kilo. Like a juvenile Triceratops can still weigh a ton-
Right, but they’ve got the distance, so yeah, so it’s much more… … A hyena or wolf-like strategy than like a cheetah going for hyper-speed or a lion going for a relatively quick burst, and it either gets you or it doesn’t. And then people kind of then just go, “Well, like, but that’s ridiculous, like, they’re not even that quick,” and it’s like, yeah, but if you’re hunting something big that’s not that quick either, and so that’s a misconception. Like when I’m talking about juvenile dinosaurs, I don’t mean just out of the egg and weigh a kilo. Like a juvenile Triceratops can still weigh a ton-
Dave Hone
And be the size of a rhino. They’re not that fast, and again if you get a head start on them because, as I said, I suspect they’re nocturnal, so that’s the other thing, it’s really hard to hide a T. rex, even lions and tigers struggle to kind of hide in long grass. When you’re three and a half, four meters tall, you can’t hide. Maybe in a forest, but even then, you’re probably going to stick out and it’s going to be hard to maneuver between the trees. And we’ve got big tyrannosaurs living in what we know to have been relatively open environments. Maybe there’s some stands of trees, but it’s not like a woodland or a forest or anything like that. So they’re living in the open and surviving in the open, so they’ve got to have a way of doing this.
And be the size of a rhino. They’re not that fast, and again if you get a head start on them because, as I said, I suspect they’re nocturnal, so that’s the other thing, it’s really hard to hide a T. rex, even lions and tigers struggle to kind of hide in long grass. When you’re three and a half, four meters tall, you can’t hide. Maybe in a forest, but even then, you’re probably going to stick out and it’s going to be hard to maneuver between the trees. And we’ve got big tyrannosaurs living in what we know to have been relatively open environments. Maybe there’s some stands of trees, but it’s not like a woodland or a forest or anything like that. So they’re living in the open and surviving in the open, so they’ve got to have a way of doing this.
Dave Hone
And I think it’s either, or some combination of, being nocturnal, so it’s relatively easy to… Sneak isn’t quite the right word, but approach things to cut the distance down for your initial strike, and then just running them down. Because yeah, maybe a one-ton Triceratops or one-ton Hadrosaur is rather faster than you, but if you’ve covered the first couple of hundred meters to get up to your top speed before they start running, then you’re probably much closer to them. And then will they exhaust faster than you’ll keep going? Well, probably not 100% of the time. No predator’s that effective. But I suspect that’s what they’re doing, and it fits with what we know of their size, their vision. They’ve got a very good sense of smell. Again, that makes sense at night.
And I think it’s either, or some combination of, being nocturnal, so it’s relatively easy to… Sneak isn’t quite the right word, but approach things to cut the distance down for your initial strike, and then just running them down. Because yeah, maybe a one-ton Triceratops or one-ton Hadrosaur is rather faster than you, but if you’ve covered the first couple of hundred meters to get up to your top speed before they start running, then you’re probably much closer to them. And then will they exhaust faster than you’ll keep going? Well, probably not 100% of the time. No predator’s that effective. But I suspect that’s what they’re doing, and it fits with what we know of their size, their vision. They’ve got a very good sense of smell. Again, that makes sense at night.
Dave Hone
It makes less sense if you’re diurnal and operating primarily in the day. And you’ve got to hide this thing, and then we know they’re pretty efficient versus relatively fast but not that efficient prey.
It makes less sense if you’re diurnal and operating primarily in the day. And you’ve got to hide this thing, and then we know they’re pretty efficient versus relatively fast but not that efficient prey.
Lex Fridman
Well, there’s a bit of a debate of scavenger versus hunter.
Well, there’s a bit of a debate of scavenger versus hunter.
Dave Hone
They’re obviously both. A, because we’ve got things like the bite marks I just described, which is pretty much definitive scavenging, and then we’ve got the healed bite marks with T-rex teeth buried in bones, which is pretty much definitive active predation. So we’ve got evidence of it doing both.
They’re obviously both. A, because we’ve got things like the bite marks I just described, which is pretty much definitive scavenging, and then we’ve got the healed bite marks with T-rex teeth buried in bones, which is pretty much definitive active predation. So we’ve got evidence of it doing both.
Lex Fridman
But can we possibly figure out what was the primary strategy?
But can we possibly figure out what was the primary strategy?
Dave Hone
That gets much harder. My guess is they’re probably still primarily actively carnivorous. Because if you look at stuff that’s reliant on being a scavenger, I mean, the true scavengers, like the vultures and condors and stuff like this, you have to be ultra-long distance, very energy efficient travelers. You know, they’re soaring in thermals. They’re barely using any energy to fly. It’s really hard to get very far.
That gets much harder. My guess is they’re probably still primarily actively carnivorous. Because if you look at stuff that’s reliant on being a scavenger, I mean, the true scavengers, like the vultures and condors and stuff like this, you have to be ultra-long distance, very energy efficient travelers. You know, they’re soaring in thermals. They’re barely using any energy to fly. It’s really hard to get very far.
History of dinosaurs on Earth
Lex Fridman
How far were they spread? Where did they live?
How far were they spread? Where did they live?
Dave Hone
So the ones we’ve found, you’ve got them from Alberta down to probably New Mexico. I want to say there’s some tyrannosaurine, so very close to T-rex, teeth that may or may not be T-rex in New Mexico. There’s similar teeth in Mexico proper, down in Coahuila, about halfway down Mexico.
So the ones we’ve found, you’ve got them from Alberta down to probably New Mexico. I want to say there’s some tyrannosaurine, so very close to T-rex, teeth that may or may not be T-rex in New Mexico. There’s similar teeth in Mexico proper, down in Coahuila, about halfway down Mexico.
Lex Fridman
Mongolia also, or no?
Mongolia also, or no?
Dave Hone
So in Mongolia, you have a thing called Tarbosaurus, which is a very, very close relative of T-rex. It’s the nearest species, or nearest genus, that we have. But T-rex is probably occupying almost all of western North America.
So in Mongolia, you have a thing called Tarbosaurus, which is a very, very close relative of T-rex. It’s the nearest species, or nearest genus, that we have. But T-rex is probably occupying almost all of western North America.
Lex Fridman
Okay.
Okay.
Dave Hone
So at times, the east was kind of split off and separate.
So at times, the east was kind of split off and separate.
Lex Fridman
But the entire surface of Earth had dinosaurs on it.
But the entire surface of Earth had dinosaurs on it.
Dave Hone
Oh, yeah.
Oh, yeah.
Lex Fridman
Well, most of it.
Well, most of it.
Dave Hone
Yeah, we’ve got them in Antarctica. We’ve got them in Antarctica even close to the mass extinction event.
Yeah, we’ve got them in Antarctica. We’ve got them in Antarctica even close to the mass extinction event.
Lex Fridman
Just an insane number of dinosaur species all over the Earth, just the same kind of variety we have in the animal kingdom today, you just have in the dinosaur.
Just an insane number of dinosaur species all over the Earth, just the same kind of variety we have in the animal kingdom today, you just have in the dinosaur.
Dave Hone
I mean, this is… how many dinosaur species were there? I mean, I basically wrote an entire book chapter about this because there are so many… But this would make the number high, but this would make the number lower, but this would make the number high, but this would make the number lower, counter versus counterarguments, that you can guesstimate almost any number and probably be very accurate or very far out.
I mean, this is… how many dinosaur species were there? I mean, I basically wrote an entire book chapter about this because there are so many… But this would make the number high, but this would make the number lower, but this would make the number high, but this would make the number lower, counter versus counterarguments, that you can guesstimate almost any number and probably be very accurate or very far out.
Lex Fridman
Yeah, but we should say that a large number of dinosaur species are constantly being discovered.
Yeah, but we should say that a large number of dinosaur species are constantly being discovered.
Dave Hone
Yeah, so we’ve named, give or take, in the realm of 1,500, 1,600 valid species. Though not everyone agrees on every species, most people would be satisfied with that number. But we also name in the realm of 40 to 50 a year, and we’ve been doing that for at least the last 10, 12 years. That number is rocketing up. It shows no signs of slowing down. There are loads of areas. Like, we still never really explored India very much. We’re starting to find entirely new beds in places like Ecuador. Argentina, we know, has a ton of stuff, but we’ve never excavated there very much. Australia, we know, has a ton of stuff, and we haven’t excavated there very much. So there are lots of places, even now, to still go through.
Yeah, so we’ve named, give or take, in the realm of 1,500, 1,600 valid species. Though not everyone agrees on every species, most people would be satisfied with that number. But we also name in the realm of 40 to 50 a year, and we’ve been doing that for at least the last 10, 12 years. That number is rocketing up. It shows no signs of slowing down. There are loads of areas. Like, we still never really explored India very much. We’re starting to find entirely new beds in places like Ecuador. Argentina, we know, has a ton of stuff, but we’ve never excavated there very much. Australia, we know, has a ton of stuff, and we haven’t excavated there very much. So there are lots of places, even now, to still go through.
Lex Fridman
This is a good moment to take a brief tangent and look at paleontology. So how do we find these fossils? What’s the magic? What’s the science? The art?
This is a good moment to take a brief tangent and look at paleontology. So how do we find these fossils? What’s the magic? What’s the science? The art?
Dave Hone
The same way, more or less, that people did in the 1750s, or whenever you first start getting them. For dinosaurs in particular, but this is true of the vast majority of stuff, there are essentially two ways of doing it. The simple one is where you have quarries of particularly things like lithographic limestone, so the printing limestones, or stuff that’s very similar to that—sometimes it’s often volcanic—you get these super, super, super fine layers of sedimentation. And that’s where you get these places of exceptional preservation. Whenever you see, like, the feathers, or almost always, whenever you see feathered dinosaurs, it’s like, “Oh, we got the skin, we got the claws,” and the whole skeleton’s laid out.
The same way, more or less, that people did in the 1750s, or whenever you first start getting them. For dinosaurs in particular, but this is true of the vast majority of stuff, there are essentially two ways of doing it. The simple one is where you have quarries of particularly things like lithographic limestone, so the printing limestones, or stuff that’s very similar to that—sometimes it’s often volcanic—you get these super, super, super fine layers of sedimentation. And that’s where you get these places of exceptional preservation. Whenever you see, like, the feathers, or almost always, whenever you see feathered dinosaurs, it’s like, “Oh, we got the skin, we got the claws,” and the whole skeleton’s laid out.
Dave Hone
So Archaeopteryx being the first bird that is an absolute classic example, it’s from these beds. And there you find them by basically splitting limestone. We don’t usually dig for them. It’s because there are quarry workers and people who are already doing this because the stone is useful, because there might be one decent fossil for every, you know, few hundred tons of rock you shift. In which case, you could get every paleontologist in the world there for a couple of years and you wouldn’t find very much. You rely on the fact that there are hundreds of guys doing this constantly. And then sooner or later, they’ll find something, and then you’ve got it. That’s the super easy way.
So Archaeopteryx being the first bird that is an absolute classic example, it’s from these beds. And there you find them by basically splitting limestone. We don’t usually dig for them. It’s because there are quarry workers and people who are already doing this because the stone is useful, because there might be one decent fossil for every, you know, few hundred tons of rock you shift. In which case, you could get every paleontologist in the world there for a couple of years and you wouldn’t find very much. You rely on the fact that there are hundreds of guys doing this constantly. And then sooner or later, they’ll find something, and then you’ve got it. That’s the super easy way.
Dave Hone
The only slightly more complicated way is you go to somewhere where geologically we know it’s the right age and it’s the right kind of rock, and ideally, fossils have been reported from there before. And again, you know, geologists mapped all the world’s geology years ago in quite a lot of detail. There are gaps, there are places where we don’t have the details, but in general, we know. And then you go there and then you walk around and you look. And that’s basically it.
The only slightly more complicated way is you go to somewhere where geologically we know it’s the right age and it’s the right kind of rock, and ideally, fossils have been reported from there before. And again, you know, geologists mapped all the world’s geology years ago in quite a lot of detail. There are gaps, there are places where we don’t have the details, but in general, we know. And then you go there and then you walk around and you look. And that’s basically it.
Lex Fridman
And you’re looking for something that’s sticking out of the rock.
And you’re looking for something that’s sticking out of the rock.
Dave Hone
So you always get the… there’s this constant, and I think, you know, borderline myth, of the idea that dinosaurs and mammoths and lots of other fossil things entered lots of indigenous cultures because it’s impossible that guys were wandering around, say, Dakota, and the Native Americans didn’t come across some dinosaur fossils. That I’d agree with. It’s pretty much impossible they didn’t come across some dinosaur fossils. Did they come across a whole skeleton laid out on the ground? No, because those don’t usually exist because even if they’re tougher, or it doesn’t matter if they’re tougher or weaker than the surrounding rock, dinosaur bones are, in some way, shape, or form, lithified.
So you always get the… there’s this constant, and I think, you know, borderline myth, of the idea that dinosaurs and mammoths and lots of other fossil things entered lots of indigenous cultures because it’s impossible that guys were wandering around, say, Dakota, and the Native Americans didn’t come across some dinosaur fossils. That I’d agree with. It’s pretty much impossible they didn’t come across some dinosaur fossils. Did they come across a whole skeleton laid out on the ground? No, because those don’t usually exist because even if they’re tougher, or it doesn’t matter if they’re tougher or weaker than the surrounding rock, dinosaur bones are, in some way, shape, or form, lithified.
Dave Hone
They turn to rock and they will absorb some of the minerals from whatever they’ve been buried in. And so, even in places like Mongolia and Northern China, where I’ve been, where actually the fossil bone is quite a lot tougher than the sandstone that it’s embedded in, you can find a bit of bone and pull it out, almost like rub it with your hands and the sand comes off and there’s your bone. They will decay pretty quickly. Sandstorms, sand just etches stuff. The tiniest bit of moisture, particularly in winter, gets into the cracks. Bones are incredibly porous. That freezes, that expands, that cracks; bones just shatter. And you find shattered bone on the surface everywhere. What you rarely find is a decent bone on the surface, let alone a skeleton.
They turn to rock and they will absorb some of the minerals from whatever they’ve been buried in. And so, even in places like Mongolia and Northern China, where I’ve been, where actually the fossil bone is quite a lot tougher than the sandstone that it’s embedded in, you can find a bit of bone and pull it out, almost like rub it with your hands and the sand comes off and there’s your bone. They will decay pretty quickly. Sandstorms, sand just etches stuff. The tiniest bit of moisture, particularly in winter, gets into the cracks. Bones are incredibly porous. That freezes, that expands, that cracks; bones just shatter. And you find shattered bone on the surface everywhere. What you rarely find is a decent bone on the surface, let alone a skeleton.
Lex Fridman
So there has to be something that’s sticking out just a tiny bit.
So there has to be something that’s sticking out just a tiny bit.
Dave Hone
So that you can see it, but it’s still buried. Right. And it happens. The greatest one that I saw, or that I didn’t see, it happened with a friend of mine when we were in Northern China and he went, “Yeah, I can see a bit of a claw sticking out of a hill.” And it was, it was like this much. You could see…
So that you can see it, but it’s still buried. Right. And it happens. The greatest one that I saw, or that I didn’t see, it happened with a friend of mine when we were in Northern China and he went, “Yeah, I can see a bit of a claw sticking out of a hill.” And it was, it was like this much. You could see…
Lex Fridman
Yeah.
Yeah.
Dave Hone
…less than a centimeter coming out of a hillside. And it’s like, so you know…
…less than a centimeter coming out of a hillside. And it’s like, so you know…
Lex Fridman
That’s the dream, right?
That’s the dream, right?
Dave Hone
Dig, dig a little bit and there’s a little bit more, dig a little bit, there’s a little bit more, dig a little bit, there’s a little bit more, okay. And then the system we were running there is some guys were searchers and some guys were diggers. So he and I were searchers, we’re told, “Okay, you guys have…” He found it. “You found something, go and look for something else. We’ll dig it out.” And so we come back a couple of days later and check in on the digging team. “So what is it then?” “Oh, it’s a complete skeleton.” And it was, it was a thing very, very close relative of Velociraptor, ended up naming it Linheraptor, so the raptor from Linher, which was the nearest town.
Dig, dig a little bit and there’s a little bit more, dig a little bit, there’s a little bit more, dig a little bit, there’s a little bit more, okay. And then the system we were running there is some guys were searchers and some guys were diggers. So he and I were searchers, we’re told, “Okay, you guys have…” He found it. “You found something, go and look for something else. We’ll dig it out.” And so we come back a couple of days later and check in on the digging team. “So what is it then?” “Oh, it’s a complete skeleton.” And it was, it was a thing very, very close relative of Velociraptor, ended up naming it Linheraptor, so the raptor from Linher, which was the nearest town.
Dave Hone
And it was, yeah, the legs were a little messed up because water had got to them and the end of the tail was missing and that was about it. So like 90-plus percent complete skeleton and it had been found with, you know, five mil, a couple of sixteenths of an inch of bone sticking out of a hill. And that’s what you want because every so often behind that is a whole skeleton. If you’re looking for skeletons on the surface, they’re going to be gone before you get to them.
And it was, yeah, the legs were a little messed up because water had got to them and the end of the tail was missing and that was about it. So like 90-plus percent complete skeleton and it had been found with, you know, five mil, a couple of sixteenths of an inch of bone sticking out of a hill. And that’s what you want because every so often behind that is a whole skeleton. If you’re looking for skeletons on the surface, they’re going to be gone before you get to them.
Lex Fridman
And when it’s a near-complete skeleton, you did a show of Terrible Lizards on Stan.
And when it’s a near-complete skeleton, you did a show of Terrible Lizards on Stan.
Dave Hone
Oh, yeah.
Oh, yeah.
Lex Fridman
The T-Rex fossil that sold for $31.8 million.
The T-Rex fossil that sold for $31.8 million.
Dave Hone
Some of them.
Some of them.
Lex Fridman
So that’s a nice big adult T-Rex. So, looking at a fossil like this…
So that’s a nice big adult T-Rex. So, looking at a fossil like this…
Dave Hone
Yeah.
Yeah.
Lex Fridman
…so for $31.8 million, what’s the excavation process for when you have a claw sticking out, like you were mentioning, and getting that whole thing out without damaging the bones? What can you say about that process?
…so for $31.8 million, what’s the excavation process for when you have a claw sticking out, like you were mentioning, and getting that whole thing out without damaging the bones? What can you say about that process?
Dave Hone
So it depends where you are. It depends how many people you’ve got. It depends on your budget and it really depends on the rock. So again, like going into China or Mongolia, where this little guy’s from, the bone tends to be relatively strong compared to the sandstone that it’s in. That also means that A, it’s fairly tough and resistant but it also means that it’s really easy to dig. Like again, I’ve dug stuff by almost like pulling it with my hands or like getting my fingers in. Getting something like a chisel or a hammer, you can just cruise through this rock.
So it depends where you are. It depends how many people you’ve got. It depends on your budget and it really depends on the rock. So again, like going into China or Mongolia, where this little guy’s from, the bone tends to be relatively strong compared to the sandstone that it’s in. That also means that A, it’s fairly tough and resistant but it also means that it’s really easy to dig. Like again, I’ve dug stuff by almost like pulling it with my hands or like getting my fingers in. Getting something like a chisel or a hammer, you can just cruise through this rock.
Lex Fridman
But you have to be really careful not to touch the bone, I guess?
But you have to be really careful not to touch the bone, I guess?
Dave Hone
So it depends how strong it is. So again, some bone is incredibly strong, some isn’t because they’ve all fossilized differently. What we’re usually doing is applying glue to it, though. There’s this wonderful stuff called Paraloid and it’s a special glue for fossils. And I said bone’s super porous, so it’s really good at sucking up liquids.
So it depends how strong it is. So again, some bone is incredibly strong, some isn’t because they’ve all fossilized differently. What we’re usually doing is applying glue to it, though. There’s this wonderful stuff called Paraloid and it’s a special glue for fossils. And I said bone’s super porous, so it’s really good at sucking up liquids.
Lex Fridman
Oh, so you’re basically filling it with glue so it makes it stronger?
Oh, so you’re basically filling it with glue so it makes it stronger?
Dave Hone
Yeah. And Paraloid’s really great because you can dissolve it with acetone and it basically doesn’t react with anything. So you can fill your fossil with glue, but then if you want to take all that glue out, you can pretty much just dissolve the glue back out again.
Yeah. And Paraloid’s really great because you can dissolve it with acetone and it basically doesn’t react with anything. So you can fill your fossil with glue, but then if you want to take all that glue out, you can pretty much just dissolve the glue back out again.
Lex Fridman
Very cool.
Very cool.
Dave Hone
So yeah, what you would normally do is for something say in China, where the rock is relatively soft and the bone’s relatively tough and where we don’t have any, like, manpower and shipping problems, which is a real issue in other places, you basically map out where you think the skeleton’s going. So in the same way that you were doing it, like, you know, if you can imagine like a cake or something and someone said, “Oh, put a toy dinosaur in there.” And you’ve got to find it without damaging it. Sort of like, well, you’d stick your finger in the cake and just kind of dig until you hit the edge of it and then you go in somewhere else and go in. And that’s what we’re doing. We’re just going in from all sides.
So yeah, what you would normally do is for something say in China, where the rock is relatively soft and the bone’s relatively tough and where we don’t have any, like, manpower and shipping problems, which is a real issue in other places, you basically map out where you think the skeleton’s going. So in the same way that you were doing it, like, you know, if you can imagine like a cake or something and someone said, “Oh, put a toy dinosaur in there.” And you’ve got to find it without damaging it. Sort of like, well, you’d stick your finger in the cake and just kind of dig until you hit the edge of it and then you go in somewhere else and go in. And that’s what we’re doing. We’re just going in from all sides.
Dave Hone
And once you’ve hit three or four bones, you kind of know which way it’s going into the hillside, usually. Sometimes they’re very weird and mixed up. And then you can just almost trace the outline of it. And then you’ll just dig all the way around that, which might involve taking the top off a mountain, depending on where you are. In the desert, it tends to be a bit easier. But yeah, we’ve had stuff where, like the first three days, it’s just ten people with pickaxes just digging a hole to get down to the right level.
And once you’ve hit three or four bones, you kind of know which way it’s going into the hillside, usually. Sometimes they’re very weird and mixed up. And then you can just almost trace the outline of it. And then you’ll just dig all the way around that, which might involve taking the top off a mountain, depending on where you are. In the desert, it tends to be a bit easier. But yeah, we’ve had stuff where, like the first three days, it’s just ten people with pickaxes just digging a hole to get down to the right level.
Lex Fridman
But sometimes the excavation requires large equipment, right?
But sometimes the excavation requires large equipment, right?
Dave Hone
Yeah. We’ve used jackhammers and stuff. We’ve used a backhoe and we’ve just literally driven it into the desert and just dug a big hole next to the fossil. And then the classic thing of covering it in a plaster of Paris jacket. Strips of burlap sacking, plaster of Paris and some water, wooden beams if you want to make something really big and really solid, and just basically wrap it all up and then take it out. And that’s, again, that’s what they were doing 150, 200 years ago, that hasn’t changed. Where it gets more complicated is if you’ve got really hard rock that’s very hard to get through, particularly if the bone is fragile. Then it becomes difficult because if you want to get a jackhammer in, the vibrations mean you’re going to shatter your bones before you’ve even cut.
Yeah. We’ve used jackhammers and stuff. We’ve used a backhoe and we’ve just literally driven it into the desert and just dug a big hole next to the fossil. And then the classic thing of covering it in a plaster of Paris jacket. Strips of burlap sacking, plaster of Paris and some water, wooden beams if you want to make something really big and really solid, and just basically wrap it all up and then take it out. And that’s, again, that’s what they were doing 150, 200 years ago, that hasn’t changed. Where it gets more complicated is if you’ve got really hard rock that’s very hard to get through, particularly if the bone is fragile. Then it becomes difficult because if you want to get a jackhammer in, the vibrations mean you’re going to shatter your bones before you’ve even cut.
Dave Hone
…through the rock. So then you might be down to doing it manually.
…through the rock. So then you might be down to doing it manually.
Lex Fridman
And manual is like-
And manual is like-
Dave Hone
Yep. Hand chipping it out. Yeah. The other way you end up with that is like the classic Jurassic Park thing, like the, was it the second scene? And they’re digging in the desert and there’s the whole skeleton laid out and five or six guys all digging around it and exposing it. And that’s actually quite common in the States. And the reason is huge amounts of those excavations are being done on government land, their national parks or whatever, or protected land. And very often the rules are you’re not allowed wheeled vehicles, full stop, at all, to protect the environment. You can walk in and walk out, but you can’t drive.
Yep. Hand chipping it out. Yeah. The other way you end up with that is like the classic Jurassic Park thing, like the, was it the second scene? And they’re digging in the desert and there’s the whole skeleton laid out and five or six guys all digging around it and exposing it. And that’s actually quite common in the States. And the reason is huge amounts of those excavations are being done on government land, their national parks or whatever, or protected land. And very often the rules are you’re not allowed wheeled vehicles, full stop, at all, to protect the environment. You can walk in and walk out, but you can’t drive.
Dave Hone
And it’s like, well, when we’re in the desert in Mongolia or in China, and we’re allowed to do this, literally, yeah, my boss drove into town, hired a guy with a JCB. He drove out, picked it up with a bucket and drove it back into town and put it on the back of a flatbed and we drove it to Beijing. If you’re out in a protected area and you can’t, you’ve got two choices. You can take it out by hand, but that means it’s got to be light enough that half a dozen people can lift it.
And it’s like, well, when we’re in the desert in Mongolia or in China, and we’re allowed to do this, literally, yeah, my boss drove into town, hired a guy with a JCB. He drove out, picked it up with a bucket and drove it back into town and put it on the back of a flatbed and we drove it to Beijing. If you’re out in a protected area and you can’t, you’ve got two choices. You can take it out by hand, but that means it’s got to be light enough that half a dozen people can lift it.
Dave Hone
Which if it’s a block of stone the size of this desk, you know, a couple of meters by a couple of meters by a meter high, is basically impossible. So that means you’ve either got to carve chunks off, so take the head off, take the arm off and whatever, and you can get it out that way, but it’s not ideal. There’s always the risk of breaking, you’re losing some information, and if you want to make a really spectacular display, you don’t want to join through every big bit of bone. You want to show the public one piece. So the alternative is to get rid of every bit of rock you possibly can to make it light enough to helicopter it out.
Which if it’s a block of stone the size of this desk, you know, a couple of meters by a couple of meters by a meter high, is basically impossible. So that means you’ve either got to carve chunks off, so take the head off, take the arm off and whatever, and you can get it out that way, but it’s not ideal. There’s always the risk of breaking, you’re losing some information, and if you want to make a really spectacular display, you don’t want to join through every big bit of bone. You want to show the public one piece. So the alternative is to get rid of every bit of rock you possibly can to make it light enough to helicopter it out.
Dave Hone
And so normally… So in China, if we hit that bit of bone going in, we’re just going in around the sides until we’ve hit it. Take the top off, take the bottom off and just take it so the skeleton is completely encased in rock and it’s as safe and secure as it can be. And then we’ll do the preparation work back at the lab.
And so normally… So in China, if we hit that bit of bone going in, we’re just going in around the sides until we’ve hit it. Take the top off, take the bottom off and just take it so the skeleton is completely encased in rock and it’s as safe and secure as it can be. And then we’ll do the preparation work back at the lab.
Lex Fridman
That’s heavy though.
That’s heavy though.
Dave Hone
But-
But-
Lex Fridman
That’s real heavy.
That’s real heavy.
Dave Hone
…if you’re going to have to lift it with a helicopter and they’ve got a weight limit of only a couple of tons, or if it’s not, then you need to pay twice as much for a much more expensive helicopter, then you take off every gram of rock that you think you can- …to get the weight down so you can ship it. So it varies massively. Something the size of Stan, that’s months of work. You’re probably doing that across three or four years with a team of half a dozen people.
…if you’re going to have to lift it with a helicopter and they’ve got a weight limit of only a couple of tons, or if it’s not, then you need to pay twice as much for a much more expensive helicopter, then you take off every gram of rock that you think you can- …to get the weight down so you can ship it. So it varies massively. Something the size of Stan, that’s months of work. You’re probably doing that across three or four years with a team of half a dozen people.
Lex Fridman
So can we just talk through… Because just using Stan as a case study, Stan was first discovered in the spring of 1987 by amateur paleontologist, Stan- …Sekanson in Hell Creek Formation near Buffalo, South Dakota.
So can we just talk through… Because just using Stan as a case study, Stan was first discovered in the spring of 1987 by amateur paleontologist, Stan- …Sekanson in Hell Creek Formation near Buffalo, South Dakota.
Dave Hone
Yeah. But it was the Larson brothers from the Black Hills Institute who dug it up. And so they’re a commercial outfit, so they dig stuff up to sell it. But they also make casts and sell them. Oh, I brought my other… I do have a cast, a cast of one of Stan’s teeth. So like you can buy casts of Stan’s teeth. You could buy casts of the head, you could buy the whole skeleton.
Yeah. But it was the Larson brothers from the Black Hills Institute who dug it up. And so they’re a commercial outfit, so they dig stuff up to sell it. But they also make casts and sell them. Oh, I brought my other… I do have a cast, a cast of one of Stan’s teeth. So like you can buy casts of Stan’s teeth. You could buy casts of the head, you could buy the whole skeleton.
Lex Fridman
So it’s a famous skeleton.
So it’s a famous skeleton.
Dave Hone
You see Stan in a whole bunch of different places. There’s a Stan just up the road from here at Oxford. Oxford’s got a cast of Stan.
You see Stan in a whole bunch of different places. There’s a Stan just up the road from here at Oxford. Oxford’s got a cast of Stan.
Lex Fridman
Oh.
Oh.
Dave Hone
I was just at Lyme Regis, the famous fossil locality in the south of the UK, a couple weeks ago. One of the fossil stores has a skull of Stan in the window. Stan, Stan turns up again and again and again.
I was just at Lyme Regis, the famous fossil locality in the south of the UK, a couple weeks ago. One of the fossil stores has a skull of Stan in the window. Stan, Stan turns up again and again and again.
Lex Fridman
So the process as written here involved removing the overlying rock— …using heavy equipment like a Bobcat.
So the process as written here involved removing the overlying rock— …using heavy equipment like a Bobcat.
Dave Hone
Yeah. So we call that the overburden, the extra stuff that’s all the rock that’s sitting above the layer with our fossil in. And when you’re lucky, that’s a foot of sandstone and you shovel it out in an hour. And I’ve seen guys in South America. There was a team in Argentina, I think it was my old boss, Ollie Rowhurst, showed me this. And they took like 20, 30 feet off the top of a hill to get down to this fossil, you know, something, you know, it was probably half an acre in size, 20, 30 feet of rock.
Yeah. So we call that the overburden, the extra stuff that’s all the rock that’s sitting above the layer with our fossil in. And when you’re lucky, that’s a foot of sandstone and you shovel it out in an hour. And I’ve seen guys in South America. There was a team in Argentina, I think it was my old boss, Ollie Rowhurst, showed me this. And they took like 20, 30 feet off the top of a hill to get down to this fossil, you know, something, you know, it was probably half an acre in size, 20, 30 feet of rock.
Lex Fridman
I mean, this is incredible. I wonder if you could speak to some of these other components: carefully extracting each fossil bone by hand with picks and brushes, plotting and diagramming the bones— …using a grid system at the dig site, wrapping the bones in burlap and plaster for safe transport to the BHI lab. Some of the stuff you’ve spoken to. What’s with the diagramming? What’s with the plotting and the diagramming?
I mean, this is incredible. I wonder if you could speak to some of these other components: carefully extracting each fossil bone by hand with picks and brushes, plotting and diagramming the bones— …using a grid system at the dig site, wrapping the bones in burlap and plaster for safe transport to the BHI lab. Some of the stuff you’ve spoken to. What’s with the diagramming? What’s with the plotting and the diagramming?
Dave Hone
So yeah. So you may well have seen something like this for archeology shows or something like that. Nowadays, again, tech’s getting better. People are using drones and stuff for this, or taking hundreds of photos and then building photogrammetry models. You just got a 3D model in the computer.
So yeah. So you may well have seen something like this for archeology shows or something like that. Nowadays, again, tech’s getting better. People are using drones and stuff for this, or taking hundreds of photos and then building photogrammetry models. You just got a 3D model in the computer.
Lex Fridman
Or just kind of modeling what we’re looking at here.
Or just kind of modeling what we’re looking at here.
Dave Hone
Yeah. But, but where you found everything. So it goes back to that stuff we were saying about the process of fossilization or the process of what’s happened to that animal from death to discovery. It’s like, a classic thing is bones being in a line. So you can imagine if, you know, bones are lots of weird shapes, but mostly, or at least certainly lots of bones, ribs, arms, and legs, things like this, they’re quite long bones. So if they’re in a current, they will tend to spin in the axis so that they are facing the current. So if you’re finding all the bones are in a line, that probably tells you that this thing has had quite a lot of water washing over it.
Yeah. But, but where you found everything. So it goes back to that stuff we were saying about the process of fossilization or the process of what’s happened to that animal from death to discovery. It’s like, a classic thing is bones being in a line. So you can imagine if, you know, bones are lots of weird shapes, but mostly, or at least certainly lots of bones, ribs, arms, and legs, things like this, they’re quite long bones. So if they’re in a current, they will tend to spin in the axis so that they are facing the current. So if you’re finding all the bones are in a line, that probably tells you that this thing has had quite a lot of water washing over it.
Lex Fridman
Mm-hmm. Got it.
Mm-hmm. Got it.
Dave Hone
You’re then probably going to be missing most of the small bones because the big heavy bones won’t be shifted by that current, but maybe the small ones will.
You’re then probably going to be missing most of the small bones because the big heavy bones won’t be shifted by that current, but maybe the small ones will.
Lex Fridman
Oh, so you actually model where the bones, where you’re likely to find the bones, the big bones, the small bones—
Oh, so you actually model where the bones, where you’re likely to find the bones, the big bones, the small bones—
Dave Hone
So it might, it might tell you where to go and dig further down the hill, quite literally, but it can also just tell you, okay, this thing, there’s no way this thing died here. It absolutely got moved, so we need to factor that in when we’re trying to interpret it. Or we’ve got this one weird bone and we can’t work out what on earth it is. Well, maybe it’s from something else because if we know a whole bunch of stuff washed together, maybe that’s a random bone from a different animal.
So it might, it might tell you where to go and dig further down the hill, quite literally, but it can also just tell you, okay, this thing, there’s no way this thing died here. It absolutely got moved, so we need to factor that in when we’re trying to interpret it. Or we’ve got this one weird bone and we can’t work out what on earth it is. Well, maybe it’s from something else because if we know a whole bunch of stuff washed together, maybe that’s a random bone from a different animal.
Lex Fridman
Yeah. Maybe that was eaten, or there might be a different story if it was washed like you…
Yeah. Maybe that was eaten, or there might be a different story if it was washed like you…
Dave Hone
Any, any of that kind of thing. So that’s where you want to have as much information as possible.
Any, any of that kind of thing. So that’s where you want to have as much information as possible.
Lex Fridman
It says here, “Once at the lab, the bones underwent more than 30,000 hours of cleaning, preservation, restoration, and documentation.” And Stan’s skeleton is notable for its high degree of completeness, about 70% by bulk, 63% by bone count, and the exceptional preservation of its skull, which has become a scientific standard for the species.
It says here, “Once at the lab, the bones underwent more than 30,000 hours of cleaning, preservation, restoration, and documentation.” And Stan’s skeleton is notable for its high degree of completeness, about 70% by bulk, 63% by bone count, and the exceptional preservation of its skull, which has become a scientific standard for the species.
Dave Hone
Yeah. So there’s this unbelievably beautiful skeleton, Borealopelta. This is a helicopter lift. Absolutely…
Yeah. So there’s this unbelievably beautiful skeleton, Borealopelta. This is a helicopter lift. Absolutely…
Lex Fridman
It’s awesome.
It’s awesome.
Dave Hone
… phenomenal preservation from-
… phenomenal preservation from-
Lex Fridman
What?
What?
Dave Hone
… from Northern Alberta.
… from Northern Alberta.
Lex Fridman
What is this thing?
What is this thing?
Dave Hone
Its full name is Borealopelta markmitchelli, and it’s called markmitchelli, named after Mark Mitchell, the preparator, who basically spent, I think Mark spent the thick end of two years on this. This was his job. And he did other stuff as well. He’s doing some other prep, he’s doing some fieldwork. But Mark basically went in every day, nine to five, cleaning the rock because the rock was hard and the bone was soft, and it’s extraordinarily well-preserved.
Its full name is Borealopelta markmitchelli, and it’s called markmitchelli, named after Mark Mitchell, the preparator, who basically spent, I think Mark spent the thick end of two years on this. This was his job. And he did other stuff as well. He’s doing some other prep, he’s doing some fieldwork. But Mark basically went in every day, nine to five, cleaning the rock because the rock was hard and the bone was soft, and it’s extraordinarily well-preserved.
Lex Fridman
Borealopelta is a genus of plant-eating armored dinosaur. Sure as hell looks armored. This is an incredibly preserved specimen. From the early Cretaceous period, about 112 million years ago, found in what is now Alberta, Canada. Amazing. Look at this thing.
Borealopelta is a genus of plant-eating armored dinosaur. Sure as hell looks armored. This is an incredibly preserved specimen. From the early Cretaceous period, about 112 million years ago, found in what is now Alberta, Canada. Amazing. Look at this thing.
Dave Hone
So Borealopelta is one of the ones where we’ve even got some of the evidence of patterning, and it suggests that it’s darker on top and lighter underneath. So this illustration, I think that’s, yeah, that’s Julius Chattoni did that. He’s a Canadian paleo artist, and so that color pattern is roughly accurate.
So Borealopelta is one of the ones where we’ve even got some of the evidence of patterning, and it suggests that it’s darker on top and lighter underneath. So this illustration, I think that’s, yeah, that’s Julius Chattoni did that. He’s a Canadian paleo artist, and so that color pattern is roughly accurate.
Lex Fridman
Oh, wow. So this is true to color. And so we can figure out the colors that…
Oh, wow. So this is true to color. And so we can figure out the colors that…
Dave Hone
Well, give, give or take some very large uncertainties-
Well, give, give or take some very large uncertainties-
Lex Fridman
Look at this thing.
Look at this thing.
Dave Hone
… it’s gonna be something like this.
… it’s gonna be something like this.
Lex Fridman
That’s so awesome.
That’s so awesome.
Dave Hone
So these guys are…
So these guys are…
Lex Fridman
That’s hard to eat, that thing.
That’s hard to eat, that thing.
Dave Hone
…nearly armored pine cones. Yeah, though it’s very much the adult condition. The juveniles seem to be far less, if not unarmored.
…nearly armored pine cones. Yeah, though it’s very much the adult condition. The juveniles seem to be far less, if not unarmored.
Lex Fridman
We’re back to the juveniles thing.
We’re back to the juveniles thing.
Dave Hone
Right. So, right, so… So, but that’s why we… That armor is absolutely going to be effective as anti-predator, but it’s probably evolved primarily for combat and display between members of the species because otherwise if they stopped you being eaten, the babies would have it.
Right. So, right, so… So, but that’s why we… That armor is absolutely going to be effective as anti-predator, but it’s probably evolved primarily for combat and display between members of the species because otherwise if they stopped you being eaten, the babies would have it.
Lex Fridman
This fossil is considered one of the best-preserved dinosaur specimens ever found, with armor, skin, keratin sheaths, and even stomach contents all intact. Incredible. And so for that, he really did the work.
This fossil is considered one of the best-preserved dinosaur specimens ever found, with armor, skin, keratin sheaths, and even stomach contents all intact. Incredible. And so for that, he really did the work.
Dave Hone
And also found miles and miles and miles out to sea, or the paleo sea. So this is from a site which normally gives us big marine reptiles. So predatory plesiosaurs and ichthyosaurs and then mosasaurs and stuff like that. And then it turned up an ankylosaur, well, nodosaur in this case.
And also found miles and miles and miles out to sea, or the paleo sea. So this is from a site which normally gives us big marine reptiles. So predatory plesiosaurs and ichthyosaurs and then mosasaurs and stuff like that. And then it turned up an ankylosaur, well, nodosaur in this case.
$31.8 million T-Rex fossil
Lex Fridman
Yeah. Wow. This is incredible. So, okay. Let’s complete the journey of Stan to the museum to, like, you get, you get to the process of cleaning everything, stitching it all together.
Yeah. Wow. This is incredible. So, okay. Let’s complete the journey of Stan to the museum to, like, you get, you get to the process of cleaning everything, stitching it all together.
Dave Hone
Yeah, like Mark suggested, this can be, even with an animal that size, Borealopelta is, you know, four or five meters long. We’ve only gone and got the front two-thirds of it. This can be needle-level stuff.
Yeah, like Mark suggested, this can be, even with an animal that size, Borealopelta is, you know, four or five meters long. We’ve only gone and got the front two-thirds of it. This can be needle-level stuff.
Lex Fridman
That’s how you get to the 30,000 hours.
That’s how you get to the 30,000 hours.
Dave Hone
Yeah, exactly that, if it’s that quality and you want to get everything open. And then something like Stan, actually a really complicated skull. The skull’s full of lots of little bones. The bones are really fragile. So that just adds to the time. I mean, at least with the ankylosaurids, the skull is just this giant solid block of bone, which makes life a little bit easier. So yeah, they’re going to put those hours in, and that’s really going to help them sell the animal, which is ultimately what happened. I mean, Stan sat in the Black Hills Institute for decades. I mean, ’87, and they sold it in like 2020, so they had it for 30 years sitting in their kind of little museum. And then my understanding was basically the brothers broke the company up, and that’s why they sold it.
Yeah, exactly that, if it’s that quality and you want to get everything open. And then something like Stan, actually a really complicated skull. The skull’s full of lots of little bones. The bones are really fragile. So that just adds to the time. I mean, at least with the ankylosaurids, the skull is just this giant solid block of bone, which makes life a little bit easier. So yeah, they’re going to put those hours in, and that’s really going to help them sell the animal, which is ultimately what happened. I mean, Stan sat in the Black Hills Institute for decades. I mean, ’87, and they sold it in like 2020, so they had it for 30 years sitting in their kind of little museum. And then my understanding was basically the brothers broke the company up, and that’s why they sold it.
Lex Fridman
Yeah. But it was still incredibly surprising that it was sold for 31 million.
Yeah. But it was still incredibly surprising that it was sold for 31 million.
Dave Hone
Yeah, I mean, far more than I think anyone thought it was going to. I mean, I liken… Well, you know, if you’re not buying, like, teeth or an ammonite in some small fossil shop, you know, when you’re talking about things like whole dinosaurs and whole tyrannosaurs, I think it’s a bit like the art market, in that it’s worth what people will pay for it. And so, you know-
Yeah, I mean, far more than I think anyone thought it was going to. I mean, I liken… Well, you know, if you’re not buying, like, teeth or an ammonite in some small fossil shop, you know, when you’re talking about things like whole dinosaurs and whole tyrannosaurs, I think it’s a bit like the art market, in that it’s worth what people will pay for it. And so, you know-
Dave Hone
…plenty of T-rexes had sold for a few million dollars, and therefore everyone thought it might be five. You know, ten would be an absurd sum of money. And then yeah, it went for 30, and it’s like, okay, well… two. I was going to say someone wanted it that bad, but clearly not two people wanted it that bad, because if only one guy is prepared to bid 30, then it goes for, you know, a million more than the next highest bidder. But presumably, two people, if not three, bid it to get that high.
…plenty of T-rexes had sold for a few million dollars, and therefore everyone thought it might be five. You know, ten would be an absurd sum of money. And then yeah, it went for 30, and it’s like, okay, well… two. I was going to say someone wanted it that bad, but clearly not two people wanted it that bad, because if only one guy is prepared to bid 30, then it goes for, you know, a million more than the next highest bidder. But presumably, two people, if not three, bid it to get that high.
Lex Fridman
Yeah, it was anonymous at the time, but now it’s Abu Dhabi’s Department of- …Culture and Tourism came out that they were the ones.
Yeah, it was anonymous at the time, but now it’s Abu Dhabi’s Department of- …Culture and Tourism came out that they were the ones.
Dave Hone
I know they’ve got it.
I know they’ve got it.
Lex Fridman
And that record has been since beaten apparently by, uh-
And that record has been since beaten apparently by, uh-
Dave Hone
By Apex, the Stegosaurus, which I still haven’t seen, though a friend of mine has sent me some photos of this thing.
By Apex, the Stegosaurus, which I still haven’t seen, though a friend of mine has sent me some photos of this thing.
Lex Fridman
Is it impressive to you, this thing?
Is it impressive to you, this thing?
Dave Hone
No, not especially. That’s why I can’t imagine that it sold for that much. It’s a really nice Stegosaurus. It’s pretty big, Stegosaurus.
No, not especially. That’s why I can’t imagine that it sold for that much. It’s a really nice Stegosaurus. It’s pretty big, Stegosaurus.
Lex Fridman
Well preserved.
Well preserved.
Dave Hone
I’ve seen other very good Stegosauruses, and I don’t understand why that’s worth that much more than something like Stan. But it shows you the market. So, we’re here in London. There’s a Stegosaurus called Sophie in the Natural History Museum in London. Sophie is a young animal, so she’s not very big. I mean, it’s a sizable specimen. I’d say five-ish, six meters, off the top of my head, total length. But Sophie’s truly exceptional. Like, there’s a couple of plates missing, a handful of ribs, a couple of bones in the tail. I think a couple of toe bones. This is, by far, the most complete Stegosaurus out there.
I’ve seen other very good Stegosauruses, and I don’t understand why that’s worth that much more than something like Stan. But it shows you the market. So, we’re here in London. There’s a Stegosaurus called Sophie in the Natural History Museum in London. Sophie is a young animal, so she’s not very big. I mean, it’s a sizable specimen. I’d say five-ish, six meters, off the top of my head, total length. But Sophie’s truly exceptional. Like, there’s a couple of plates missing, a handful of ribs, a couple of bones in the tail. I think a couple of toe bones. This is, by far, the most complete Stegosaurus out there.
Lex Fridman
Wow.
Wow.
Dave Hone
That sold for, I think, 250,000 pounds, so maybe $400,000, about a decade ago. So this has now gone up, like, 100-fold for an animal which is quite a bit bigger but is way less complete. So for me, those two things kind of balance out because size is always impressive, and that’s what the public likes, but also a complete one is better than a half a one or two-thirds a one. So how has the price gone up 100 or from, yeah, 400,000 to 40,000,000 in 10 years for roughly the same thing?
That sold for, I think, 250,000 pounds, so maybe $400,000, about a decade ago. So this has now gone up, like, 100-fold for an animal which is quite a bit bigger but is way less complete. So for me, those two things kind of balance out because size is always impressive, and that’s what the public likes, but also a complete one is better than a half a one or two-thirds a one. So how has the price gone up 100 or from, yeah, 400,000 to 40,000,000 in 10 years for roughly the same thing?
Lex Fridman
A T-rex is a little bit more epic than-
A T-rex is a little bit more epic than-
Dave Hone
Well that’s the thing-
Well that’s the thing-
Lex Fridman
…a Stegosaurus.
…a Stegosaurus.
Dave Hone
T-rex has a massive premium on it. Because it’s, yeah, a Stegosaurus is one of those top-tier, you know, it’s… You can virtually do the list. You know, T-rex, Triceratops, Diplodocus, Brontosaurus, Stegosaurus. It’s in that first six or seven… Okay, these days, Velociraptor, thanks to Jurassic Park.
T-rex has a massive premium on it. Because it’s, yeah, a Stegosaurus is one of those top-tier, you know, it’s… You can virtually do the list. You know, T-rex, Triceratops, Diplodocus, Brontosaurus, Stegosaurus. It’s in that first six or seven… Okay, these days, Velociraptor, thanks to Jurassic Park.
Dave Hone
But it’s… Like, right, but you know, that’s the list of like seven or eight things that any random human who doesn’t care about dinosaurs and doesn’t know anything about dinosaurs, but they’ve probably heard of them. You know, Stegosaurus is in that list and would have an idea of what it looked like. Oh yeah, it’s got like the big stuff stuck along the back. You know, you’d get that answer from almost any, you know, 99% of people on the street. But yeah, it’s not a T-rex. So how it’s worth, yeah, 50% more and it’s not even a particularly complete skeleton, Apex, to my understanding, like I don’t get it.
But it’s… Like, right, but you know, that’s the list of like seven or eight things that any random human who doesn’t care about dinosaurs and doesn’t know anything about dinosaurs, but they’ve probably heard of them. You know, Stegosaurus is in that list and would have an idea of what it looked like. Oh yeah, it’s got like the big stuff stuck along the back. You know, you’d get that answer from almost any, you know, 99% of people on the street. But yeah, it’s not a T-rex. So how it’s worth, yeah, 50% more and it’s not even a particularly complete skeleton, Apex, to my understanding, like I don’t get it.
Lex Fridman
Actually, since we’re on the topic of money, if I gave you, let’s say, $10,000,000,000, how would you spend it? I force you to spend it on dinosaur-related things. How would you spend it?
Actually, since we’re on the topic of money, if I gave you, let’s say, $10,000,000,000, how would you spend it? I force you to spend it on dinosaur-related things. How would you spend it?
Dave Hone
I mean, I’d probably drop half a billion or so on the best museum you’d ever seen and then-
I mean, I’d probably drop half a billion or so on the best museum you’d ever seen and then-
Lex Fridman
So, put together a museum. You’re like one of the great communicators- …one of the great scientists, and so like you would want to push forward the whole field. And one of the ways to do that is a great museum, actually.
So, put together a museum. You’re like one of the great communicators- …one of the great scientists, and so like you would want to push forward the whole field. And one of the ways to do that is a great museum, actually.
Dave Hone
Yeah, but you wanted… So, it’s twofold because there’s the communication and the education part of it, which is something I’m massive on, and I think research is pointless if you don’t communicate it at some level. I’m not saying everyone needs to communicate everything. If you’re working on the nuances of a calculation of the volume of a black hole or something, yeah, it probably doesn’t need a press release or a new museum exhibition. But fundamentally, we should be talking about our work. But also, you’ve got to store this stuff. Many fossils are fragile. They need to be kept not necessarily in climate control, but at least you want a basement that is much more even than, you know, just sticking it in a box in a warehouse somewhere.
Yeah, but you wanted… So, it’s twofold because there’s the communication and the education part of it, which is something I’m massive on, and I think research is pointless if you don’t communicate it at some level. I’m not saying everyone needs to communicate everything. If you’re working on the nuances of a calculation of the volume of a black hole or something, yeah, it probably doesn’t need a press release or a new museum exhibition. But fundamentally, we should be talking about our work. But also, you’ve got to store this stuff. Many fossils are fragile. They need to be kept not necessarily in climate control, but at least you want a basement that is much more even than, you know, just sticking it in a box in a warehouse somewhere.
Dave Hone
So you’ve got to be able to store this stuff to be able to study it, or it’s kind of pointless. But with the rest of that money, I’d buy a ton of land, like the quarries that gave us Archaeopteryx in Bavaria and have given us a ton of other stuff. I’ve worked on a load of pterosaurs, the flying reptiles from there. These are mostly commercially run or just straight-up privately owned and not being commercially run. Someone’s just inherited it, and they’re just sitting on this stuff.
So you’ve got to be able to store this stuff to be able to study it, or it’s kind of pointless. But with the rest of that money, I’d buy a ton of land, like the quarries that gave us Archaeopteryx in Bavaria and have given us a ton of other stuff. I’ve worked on a load of pterosaurs, the flying reptiles from there. These are mostly commercially run or just straight-up privately owned and not being commercially run. Someone’s just inherited it, and they’re just sitting on this stuff.
Lex Fridman
So if somebody’s building stuff on land, does that threaten the possibility of discovering something on it?
So if somebody’s building stuff on land, does that threaten the possibility of discovering something on it?
Dave Hone
It’s more that they’re not necessarily exploiting it with fossils in mind.
It’s more that they’re not necessarily exploiting it with fossils in mind.
Lex Fridman
Presumably, you have to balance the search efforts and the land.
Presumably, you have to balance the search efforts and the land.
Dave Hone
Yeah, but you know, one billion on its own would go a very, very long way, almost infinitely, if you’re just creaming off the interest and then funding excavations and supporting scientists who are already embedded in other museums or other universities or other research institutes.
Yeah, but you know, one billion on its own would go a very, very long way, almost infinitely, if you’re just creaming off the interest and then funding excavations and supporting scientists who are already embedded in other museums or other universities or other research institutes.
Lex Fridman
So the rest is for buying up land so that those people can do their work.
So the rest is for buying up land so that those people can do their work.
Dave Hone
Yeah, you look at somewhere like, you know, Brazil, and I can never remember the name of it, but there’s, again, one of these zones of exceptional preservation where superlative pterosaurs, fish… We’ve had a handful of dinosaurs and a whole bunch of other stuff has come out, and it’s just a giant commercial mining operation. And yeah, when they hit a fossil, when they think they’re close to it, they stop and pull it out, and they’ll send it to a museum, and more often they’ll sell it to a museum, and museums only have so much money. Whereas what if I owned that quarry and then I made sure everyone who worked there was trained and got a bonus every time they found anything, and then I just handed everything they dug up straight into a museum?
Yeah, you look at somewhere like, you know, Brazil, and I can never remember the name of it, but there’s, again, one of these zones of exceptional preservation where superlative pterosaurs, fish… We’ve had a handful of dinosaurs and a whole bunch of other stuff has come out, and it’s just a giant commercial mining operation. And yeah, when they hit a fossil, when they think they’re close to it, they stop and pull it out, and they’ll send it to a museum, and more often they’ll sell it to a museum, and museums only have so much money. Whereas what if I owned that quarry and then I made sure everyone who worked there was trained and got a bonus every time they found anything, and then I just handed everything they dug up straight into a museum?
Lex Fridman
So there would be some element of crowd-sourced paleontology or?
So there would be some element of crowd-sourced paleontology or?
Dave Hone
Yeah, but it’s more that no researcher ever needs to spend money to access that. No museum needs to go and find a new donor to give them half a million to go and buy this one specimen, knowing that it might still go to some Silicon Valley billionaire’s foyer or whatever. It’s like, “Well, I own the land, so it’s mine, so problem solved.” That’s what’s in my head.
Yeah, but it’s more that no researcher ever needs to spend money to access that. No museum needs to go and find a new donor to give them half a million to go and buy this one specimen, knowing that it might still go to some Silicon Valley billionaire’s foyer or whatever. It’s like, “Well, I own the land, so it’s mine, so problem solved.” That’s what’s in my head.
Lex Fridman
It just would be wonderful to scale up the effort to where we can map out the whole, sort of, story of this time, because it’s such a fascinating time in the history of Earth.
It just would be wonderful to scale up the effort to where we can map out the whole, sort of, story of this time, because it’s such a fascinating time in the history of Earth.
Dave Hone
I’ve jokingly written a couple of times about how all science funding in the world should go to paleontology.
I’ve jokingly written a couple of times about how all science funding in the world should go to paleontology.
Dave Hone
And the idea being that, like, yeah, if you want to investigate black holes or neutrinos or chemical crystallography or panda genetics or whatever it is, you can do that any time you want. That’s not going to change a million years from now as it will from tomorrow. But fossils are in places that erode, and if we don’t dig them up, they’re gone. So we should dig all the fossils up now, and then we’ve got forever to study them. But if we don’t dig them up now, who knows, you know, maybe something twice the size of T-Rex sat on a hillside for six months, and then the wind got to it and it’s gone, and that was the only one that ever preserved. Well, we’ll never know now. To be clear, this is a joke.
And the idea being that, like, yeah, if you want to investigate black holes or neutrinos or chemical crystallography or panda genetics or whatever it is, you can do that any time you want. That’s not going to change a million years from now as it will from tomorrow. But fossils are in places that erode, and if we don’t dig them up, they’re gone. So we should dig all the fossils up now, and then we’ve got forever to study them. But if we don’t dig them up now, who knows, you know, maybe something twice the size of T-Rex sat on a hillside for six months, and then the wind got to it and it’s gone, and that was the only one that ever preserved. Well, we’ll never know now. To be clear, this is a joke.
Dave Hone
I’m not suggesting we should stop doing cancer research and physics and other things, but it is – we’re in a fundamentally different field where our science is literally disappearing.
I’m not suggesting we should stop doing cancer research and physics and other things, but it is – we’re in a fundamentally different field where our science is literally disappearing.
Lex Fridman
Yeah. I mean, I know it’s a joke, but there’s some truth to it. And on the flip side, one of the hopes is that technology will somehow ease the search and discovery process, but as you said, so far most of it…
Yeah. I mean, I know it’s a joke, but there’s some truth to it. And on the flip side, one of the hopes is that technology will somehow ease the search and discovery process, but as you said, so far most of it…
Dave Hone
It hasn’t. Yeah, I mean…
It hasn’t. Yeah, I mean…
Lex Fridman
So far.
So far.
Dave Hone
Yeah. You know, Jurassic Park ’93, you’ve got that little scene where they’ve got the, like, thumper or something they call it, and it hits the ground, and seismic, and then they go, “Look, look! Here’s the whole skeleton.” Yeah, they tried it. It doesn’t really work. We’ve tried looking for stuff with drones. That helps you get into some inaccessible areas, but until the resolution is probably better, you’ve still got that problem of, like, looking, you know, with human eyes which are binocular, and being able to, you know, just tilt your head completely changes how you see something in a way that flying over just won’t. I know they’ve tried looking…
Yeah. You know, Jurassic Park ’93, you’ve got that little scene where they’ve got the, like, thumper or something they call it, and it hits the ground, and seismic, and then they go, “Look, look! Here’s the whole skeleton.” Yeah, they tried it. It doesn’t really work. We’ve tried looking for stuff with drones. That helps you get into some inaccessible areas, but until the resolution is probably better, you’ve still got that problem of, like, looking, you know, with human eyes which are binocular, and being able to, you know, just tilt your head completely changes how you see something in a way that flying over just won’t. I know they’ve tried looking…
Dave Hone
So because the bones are porous, they tend to suck things up, so actually dinosaur bones can be really radioactive if they’re in areas where there are things like uranium. So yeah, there are drawers which have lead boxes around them and stuff like this for dinosaur bones, or just signs saying, “Do not handle.” They’re very low-level radioactive. Like, you’d have to stick it in your pocket for six months to run any real risk. But they’re radioactive, much more so than the background. So can we do that? Hmm, turns out, not really. So again, maybe tech will advance.
So because the bones are porous, they tend to suck things up, so actually dinosaur bones can be really radioactive if they’re in areas where there are things like uranium. So yeah, there are drawers which have lead boxes around them and stuff like this for dinosaur bones, or just signs saying, “Do not handle.” They’re very low-level radioactive. Like, you’d have to stick it in your pocket for six months to run any real risk. But they’re radioactive, much more so than the background. So can we do that? Hmm, turns out, not really. So again, maybe tech will advance.
Lex Fridman
But for now-
But for now-
Dave Hone
Right, and-
Right, and-
Lex Fridman
… humans are quite incredible.
… humans are quite incredible.
Dave Hone
Yeah, we are. But also, paleo’s kind of at the bottom of the pile, you know. There’s not many of us. We don’t have a lot of funding. It takes real money to adapt stuff. So, you know, we’re scanning stuff with MRIs and things like that in hospitals, but it mostly doesn’t work very well because the problem you’ve got is, like I said, the bones take on some of the properties of the minerals in which they’re embedded, which means their density is really similar. And things like MRIs or seismic activity is basically looking for differences in density. What if it’s the same density as, you know, it’s like I put some green Plasticine in some blue Plasticine, there’s going to be a bit of a join, and they’re going to be very, very slightly different.
Yeah, we are. But also, paleo’s kind of at the bottom of the pile, you know. There’s not many of us. We don’t have a lot of funding. It takes real money to adapt stuff. So, you know, we’re scanning stuff with MRIs and things like that in hospitals, but it mostly doesn’t work very well because the problem you’ve got is, like I said, the bones take on some of the properties of the minerals in which they’re embedded, which means their density is really similar. And things like MRIs or seismic activity is basically looking for differences in density. What if it’s the same density as, you know, it’s like I put some green Plasticine in some blue Plasticine, there’s going to be a bit of a join, and they’re going to be very, very slightly different.
Dave Hone
But ultimately, you’re not going to be able to detect that through most means if you’re looking for density or mass or anything like that.
But ultimately, you’re not going to be able to detect that through most means if you’re looking for density or mass or anything like that.
Lex Fridman
Well, I personally think that there are few things as important to understand as the history of life on Earth. There are like books, right? There’s like a ch- … or maybe you could think of it as chapters, and then one of the chapters is the time of the dinosaurs. … And then there’s a great extinction, so it just goes up and up.
Well, I personally think that there are few things as important to understand as the history of life on Earth. There are like books, right? There’s like a ch- … or maybe you could think of it as chapters, and then one of the chapters is the time of the dinosaurs. … And then there’s a great extinction, so it just goes up and up.
Dave Hone
I mean, that’s not a million miles off. I think Darwin had an analogy like that, of, we’ve got a few words on a few pages spread out, but between them you get an idea of what the story is and where it’s going.
I mean, that’s not a million miles off. I think Darwin had an analogy like that, of, we’ve got a few words on a few pages spread out, but between them you get an idea of what the story is and where it’s going.
Lex Fridman
I think what humans don’t quite realize is we may end up being just a chapter in a book. It might be our extinction event, self-created, perhaps a nuclear war, perhaps robots take over, perhaps we don’t know.
I think what humans don’t quite realize is we may end up being just a chapter in a book. It might be our extinction event, self-created, perhaps a nuclear war, perhaps robots take over, perhaps we don’t know.
Dave Hone
Well, or dumb luck. I mean, the dinosaurs were doing absolutely fine until a dirty great rock hit them, and you can’t, you know, Ben Affleck and Bruce Willis movies aside, there’s only so much you can do about that.
Well, or dumb luck. I mean, the dinosaurs were doing absolutely fine until a dirty great rock hit them, and you can’t, you know, Ben Affleck and Bruce Willis movies aside, there’s only so much you can do about that.
T-Rex’s skull and bone-crushing bite force
Lex Fridman
Hey, you take that back. There’s nothing they can do wrong. All right. Quick pause. Bathroom break? We’ve taken a few tangents, but let’s continue on the thread of T-Rex. Go- go to the skull. So the skull of T-Rex is iconic. You- you describe it as being incredibly robust and overbuilt.
Hey, you take that back. There’s nothing they can do wrong. All right. Quick pause. Bathroom break? We’ve taken a few tangents, but let’s continue on the thread of T-Rex. Go- go to the skull. So the skull of T-Rex is iconic. You- you describe it as being incredibly robust and overbuilt.
Dave Hone
Yeah, there’s a lot of bone on there. So we mentioned a couple of other things, like Giganotosaurus is this, you know, giant carnivore. If you put Giganotosaurus T-Rex in… That’s the one. So that’s, yeah, that’s from my old blog. It’s not my image. Um…
Yeah, there’s a lot of bone on there. So we mentioned a couple of other things, like Giganotosaurus is this, you know, giant carnivore. If you put Giganotosaurus T-Rex in… That’s the one. So that’s, yeah, that’s from my old blog. It’s not my image. Um…
Lex Fridman
What are we looking at, on the left and the right?
What are we looking at, on the left and the right?
Dave Hone
So you’ve got T-Rex on the left in orange, and Giganotosaurus on the right in red. As I said, they’re pretty similarly sized, but just look at the robusticity. The front of the snout of T-Rex is all bone. And yet, the major openings—there’s a thing called the antorbital fenestra, the opening in front of the orbit—is absolutely massive in Giganotosaurus. It’s like half the skull. The opening at the back of the skull is much bigger. The opening in the lower jaw is much bigger. And actually, the jaw, what you can’t see, side to side, is much thinner. So their heads are the same size, and as animals, they are about the same linear dimensions. But you can just see, there’s just way more bone in the T-Rex.
So you’ve got T-Rex on the left in orange, and Giganotosaurus on the right in red. As I said, they’re pretty similarly sized, but just look at the robusticity. The front of the snout of T-Rex is all bone. And yet, the major openings—there’s a thing called the antorbital fenestra, the opening in front of the orbit—is absolutely massive in Giganotosaurus. It’s like half the skull. The opening at the back of the skull is much bigger. The opening in the lower jaw is much bigger. And actually, the jaw, what you can’t see, side to side, is much thinner. So their heads are the same size, and as animals, they are about the same linear dimensions. But you can just see, there’s just way more bone in the T-Rex.
Lex Fridman
It’s incredible.
It’s incredible.
Dave Hone
So this is, like… it’s not overbuilt, it’s obviously evolved that this is the right amount of bone for the stresses and strains, for what it’s doing and how it’s acting. But you compare it to anything that’s not a very large tyrannosaur, and suddenly you see just how much bone has gone into it. It is a very large… it’s an absolutely large head, but it’s a very heavy head with a lot of bone. And a lot of that bone is there to resist all the forces of all the muscles, because it has this giant, super-powerful bite. Which again, you can see in the teeth.
So this is, like… it’s not overbuilt, it’s obviously evolved that this is the right amount of bone for the stresses and strains, for what it’s doing and how it’s acting. But you compare it to anything that’s not a very large tyrannosaur, and suddenly you see just how much bone has gone into it. It is a very large… it’s an absolutely large head, but it’s a very heavy head with a lot of bone. And a lot of that bone is there to resist all the forces of all the muscles, because it has this giant, super-powerful bite. Which again, you can see in the teeth.
Lex Fridman
So the bone and the muscles kind of evolve together— … to get bigger and bigger and bigger and bigger. So you need this kind of structure for the power that, uh- … the crush has.
So the bone and the muscles kind of evolve together— … to get bigger and bigger and bigger and bigger. So you need this kind of structure for the power that, uh- … the crush has.
Dave Hone
So one of the big things tyrannosaurs have… And this goes all the way down to the… The earliest tyrannosaurs were like our size. Like little diddy things, like two, three meters long, be a meter and a half tall. But they have fused nasals. So the pair of bones that, in us there’s not a lot there, but obviously in something like a dog or something like a baboon with a long nose, it’s like the whole top of the snout. And there’s two, one each side. In tyrannosaurs, they fuse together, so it forms a solid bit of bone. So the whole top of the nose is solid. And then that makes the skull just fundamentally more rigid and able to take more power through it.
So one of the big things tyrannosaurs have… And this goes all the way down to the… The earliest tyrannosaurs were like our size. Like little diddy things, like two, three meters long, be a meter and a half tall. But they have fused nasals. So the pair of bones that, in us there’s not a lot there, but obviously in something like a dog or something like a baboon with a long nose, it’s like the whole top of the snout. And there’s two, one each side. In tyrannosaurs, they fuse together, so it forms a solid bit of bone. So the whole top of the nose is solid. And then that makes the skull just fundamentally more rigid and able to take more power through it.
Dave Hone
The very early ones weren’t super biters, I suspect, but they do also—but they do have the little flattened teeth at the front, so I strongly suspect the fused nasals, at least originally, is for resisting that. Because again, if you’ve got a long nose and you’re pulling with quite a lot of force at the very tip, that’s going to bend your snout. So strengthen that.
The very early ones weren’t super biters, I suspect, but they do also—but they do have the little flattened teeth at the front, so I strongly suspect the fused nasals, at least originally, is for resisting that. Because again, if you’ve got a long nose and you’re pulling with quite a lot of force at the very tip, that’s going to bend your snout. So strengthen that.
Lex Fridman
Can you speak to the evolution from the smaller to the bigger of the T-Rex? What were some of the evolutionary pressures? What’s the story of the evolution?
Can you speak to the evolution from the smaller to the bigger of the T-Rex? What were some of the evolutionary pressures? What’s the story of the evolution?
Dave Hone
So tyrannosaurs go back to the Middle Jurassic. So tyrannosaurs were around for a hundred million years. So from about 160-ish, 165-ish million years till the extinction. 66.5, I think, is the current dating on that. So yeah, you’ve got a hundred million years of them. And the Middle Jurassic, annoyingly, is probably the bit of the Mesozoic—so the whole dinosaur period—that we know the least of. Just by chance, we just don’t have many rocks exposed of the right age that are fossil-bearing. But we’ve got two or three tyrannosaurs from that time. And yeah, they’re really quite diddy. Yeah, they’d be chest-high to us, two or three meters long, including the tail. Probably more like three, a lot of them. Little heads, long arms. They look every other carnivore going.
So tyrannosaurs go back to the Middle Jurassic. So tyrannosaurs were around for a hundred million years. So from about 160-ish, 165-ish million years till the extinction. 66.5, I think, is the current dating on that. So yeah, you’ve got a hundred million years of them. And the Middle Jurassic, annoyingly, is probably the bit of the Mesozoic—so the whole dinosaur period—that we know the least of. Just by chance, we just don’t have many rocks exposed of the right age that are fossil-bearing. But we’ve got two or three tyrannosaurs from that time. And yeah, they’re really quite diddy. Yeah, they’d be chest-high to us, two or three meters long, including the tail. Probably more like three, a lot of them. Little heads, long arms. They look every other carnivore going.
Dave Hone
There’s not a lot special to them at this point. They’ve only just separated from their nearest groups, which is actually something like the ancestors of Giganotosaurus, actually. They do have the fused nasals early on. They do have these special little teeth at the front of the jaw very early on. They’re feathered early on. Definitively, we have skeletons with feathers on them that are early tyrannosaurs at least until the Early Cretaceous. But yeah, they’re knocking around as relatively small animals in Europe and Asia. We have a couple from the UK. We have a whole bunch from China. There’s stuff from, like, Kyrgyzstan and places like this. I think there’s one, a relatively early one from Russia.
There’s not a lot special to them at this point. They’ve only just separated from their nearest groups, which is actually something like the ancestors of Giganotosaurus, actually. They do have the fused nasals early on. They do have these special little teeth at the front of the jaw very early on. They’re feathered early on. Definitively, we have skeletons with feathers on them that are early tyrannosaurs at least until the Early Cretaceous. But yeah, they’re knocking around as relatively small animals in Europe and Asia. We have a couple from the UK. We have a whole bunch from China. There’s stuff from, like, Kyrgyzstan and places like this. I think there’s one, a relatively early one from Russia.
Dave Hone
And then when they get into the Early Cretaceous, they start getting quite a bit bigger. So someone like Yutyrannus, if you want to… There you go. So Yutyrannus is fuzzy. We have three specimens definitively feathered. It gets— to six, seven meters long.
And then when they get into the Early Cretaceous, they start getting quite a bit bigger. So someone like Yutyrannus, if you want to… There you go. So Yutyrannus is fuzzy. We have three specimens definitively feathered. It gets— to six, seven meters long.
Lex Fridman
There’s something funny-looking about the sexy, smaller, earlier version of the T-Rex.
There’s something funny-looking about the sexy, smaller, earlier version of the T-Rex.
Dave Hone
But again, this is seven, eight meters, maybe weighs half a ton or a ton. We are very much on the menu for an animal that size.
But again, this is seven, eight meters, maybe weighs half a ton or a ton. We are very much on the menu for an animal that size.
Dave Hone
And it’s massive and dangerous. Quite what triggered them… There’s general patterns in evolution of size change, and one famous one called Cope’s Rule I’ve worked on a fair bit, which is the idea that over time, things tend to get bigger. And they do for various different reasons, one of which is just pure, almost, like, diffusion. If you start small and you evolve, well, you can’t get much smaller, but you can always get bigger. So you’ll naturally kind of diffuse away. Whereas if you’re a blue whale, you probably can’t get much bigger and its descendants will probably end up being smaller. But there are reasons that bigger things do better. You can hunt more stuff. You are more energy-efficient. You can move more efficiently.
And it’s massive and dangerous. Quite what triggered them… There’s general patterns in evolution of size change, and one famous one called Cope’s Rule I’ve worked on a fair bit, which is the idea that over time, things tend to get bigger. And they do for various different reasons, one of which is just pure, almost, like, diffusion. If you start small and you evolve, well, you can’t get much smaller, but you can always get bigger. So you’ll naturally kind of diffuse away. Whereas if you’re a blue whale, you probably can’t get much bigger and its descendants will probably end up being smaller. But there are reasons that bigger things do better. You can hunt more stuff. You are more energy-efficient. You can move more efficiently.
Dave Hone
You’re dominant in contests, particularly with conspecifics. If you’re trying to win a territory or win mating rights, bigger things usually beat up smaller things. So there’s going to be selection favoring them. But then big things don’t usually do well in extinction events, so that tends to reset the clock by killing off the big stuff, and then smaller stuff does better again.
You’re dominant in contests, particularly with conspecifics. If you’re trying to win a territory or win mating rights, bigger things usually beat up smaller things. So there’s going to be selection favoring them. But then big things don’t usually do well in extinction events, so that tends to reset the clock by killing off the big stuff, and then smaller stuff does better again.
Lex Fridman
So mostly, there are evolutionary advantages, but—
So mostly, there are evolutionary advantages, but—
Dave Hone
But a fairly big one. So yeah. It’s the classic thing of there’s a day-to-day advantage of being bigger, and that might last for a few million years, right up to the point that suddenly there’s the biggest drought the Earth has encountered in five million years, and then all the big stuff just gets nailed.
But a fairly big one. So yeah. It’s the classic thing of there’s a day-to-day advantage of being bigger, and that might last for a few million years, right up to the point that suddenly there’s the biggest drought the Earth has encountered in five million years, and then all the big stuff just gets nailed.
Lex Fridman
Oh, so we should probably say, is this accurate to say that the bigger you get, the fewer of you there are?
Oh, so we should probably say, is this accurate to say that the bigger you get, the fewer of you there are?
Dave Hone
There are, yeah. There’s just less fundamental space, you know? There are more mice than there are elephants. There are more elephants than there are whales. There is only so much biomass that an ecosystem can support.
There are, yeah. There’s just less fundamental space, you know? There are more mice than there are elephants. There are more elephants than there are whales. There is only so much biomass that an ecosystem can support.
Lex Fridman
And bigger things are just worse at repopulating in extinction events.
And bigger things are just worse at repopulating in extinction events.
Dave Hone
Yeah.
Yeah.
Lex Fridman
…for example.
…for example.
Dave Hone
Right, so they’re less likely to survive because they need more fuel. What would feed a mouse for a year won’t feed an elephant for a week. So, if… And of course, the mice are going to have an easier time finding a few little seeds than an elephant’s going to find tons of food, and then they’ve got less genetic diversity. There might be 5,000 mice, there might be 200 elephants, so who’s likely to have more genes or who’s likely to have selection acting on those genes to produce a survivor? Well, the one with five or ten or a thousand times the population.
Right, so they’re less likely to survive because they need more fuel. What would feed a mouse for a year won’t feed an elephant for a week. So, if… And of course, the mice are going to have an easier time finding a few little seeds than an elephant’s going to find tons of food, and then they’ve got less genetic diversity. There might be 5,000 mice, there might be 200 elephants, so who’s likely to have more genes or who’s likely to have selection acting on those genes to produce a survivor? Well, the one with five or ten or a thousand times the population.
Dave Hone
And then, yeah, on top of that, you’ve then got the very slow reproductive cycle, which then again gives evolution not a lot to work with if, as an elephant, you’re breeding once every five years, and as a mouse, you’re doing it once every eight weeks.
And then, yeah, on top of that, you’ve then got the very slow reproductive cycle, which then again gives evolution not a lot to work with if, as an elephant, you’re breeding once every five years, and as a mouse, you’re doing it once every eight weeks.
Lex Fridman
What can we say about the evolution of just the massive, bone-crushing power of…
What can we say about the evolution of just the massive, bone-crushing power of…
Dave Hone
So that starts kicking in seriously, kind of eutyranosizing up. So that’s when you start getting not just bigger animals that are getting to a comparable size to the other big dinosaur carnivores of the time, you start getting those bigger heads. But even then, relatively late in tyrannosaur evolution, so getting into the middle part of the Late Cretaceous, you see a split, and we have a group called the alioramous, which have really, really long, thin skulls, and they look much more like a kind of, here’s a Velociraptor, they look much more like a giant Velociraptor-ish than a tyrannosaur. Still relatively small arms, but it’s a very long snout.
So that starts kicking in seriously, kind of eutyranosizing up. So that’s when you start getting not just bigger animals that are getting to a comparable size to the other big dinosaur carnivores of the time, you start getting those bigger heads. But even then, relatively late in tyrannosaur evolution, so getting into the middle part of the Late Cretaceous, you see a split, and we have a group called the alioramous, which have really, really long, thin skulls, and they look much more like a kind of, here’s a Velociraptor, they look much more like a giant Velociraptor-ish than a tyrannosaur. Still relatively small arms, but it’s a very long snout.
Dave Hone
And so this is a fast-biting animal with a relatively light bite, so it’s probably taking really quite small stuff proportionally. And then on the other side, you’ve got the tyrannosaurines, which are the really big-headed ones. And so that is few ancestral things like Albertosaurus and Gorgosaurus, both from Alberta, but then Daspletosaurus, a thing I named called Jiuchengtyrannus in China, and then Tarbosaurus and Tyrannosaurus. And you’ve really only got three or four of these ultra-giants, which are all kind of 10 meters plus in size, and then have the really broad skull with a real kind of excessive bite force. But even things like Albertosaurus, which is, I mean, a big animal, seven, eight meters, yeah, a ton or so.
And so this is a fast-biting animal with a relatively light bite, so it’s probably taking really quite small stuff proportionally. And then on the other side, you’ve got the tyrannosaurines, which are the really big-headed ones. And so that is few ancestral things like Albertosaurus and Gorgosaurus, both from Alberta, but then Daspletosaurus, a thing I named called Jiuchengtyrannus in China, and then Tarbosaurus and Tyrannosaurus. And you’ve really only got three or four of these ultra-giants, which are all kind of 10 meters plus in size, and then have the really broad skull with a real kind of excessive bite force. But even things like Albertosaurus, which is, I mean, a big animal, seven, eight meters, yeah, a ton or so.
Dave Hone
They’re not quite T-Rex, but they’re definitely more robust than the other contemporaneous carnivores. So there is this progression of getting bigger, getting a bigger head; the teeth get bigger, but there are fewer of them, building up the bone biting and the power. But with some interesting evolutionary offshoots in the way that, yeah, cats are largely much of a muchness, but then you get things like, well, like bobcats and lynx, which are actually quite bulky, stocky little cats that don’t have the long tail and are doing something quite different.
They’re not quite T-Rex, but they’re definitely more robust than the other contemporaneous carnivores. So there is this progression of getting bigger, getting a bigger head; the teeth get bigger, but there are fewer of them, building up the bone biting and the power. But with some interesting evolutionary offshoots in the way that, yeah, cats are largely much of a muchness, but then you get things like, well, like bobcats and lynx, which are actually quite bulky, stocky little cats that don’t have the long tail and are doing something quite different.
Lex Fridman
Can you just speak almost more generally? Because T-Rex is sort of one of the great arch predators of history on Earth. How does an arch predator evolve? Like, why did T-Rex win? Why isn’t everybody, why isn’t there, like, a vicious race to the top, and everyone’s…
Can you just speak almost more generally? Because T-Rex is sort of one of the great arch predators of history on Earth. How does an arch predator evolve? Like, why did T-Rex win? Why isn’t everybody, why isn’t there, like, a vicious race to the top, and everyone’s…
Dave Hone
I have a problem with the term apex predator because ecologically, apex predators are generally defined as things that eat other predators. So a great white shark is, because it’s eating stuff like tuna and sea lions, which are themselves predators, so it’s a predator of predators. Whereas people love saying lions are apex predators, and they love saying T-Rex is an apex predator. They’re eating herbivores. This is not some weird and unusual thing. They’re the largest predator in their ecosystem, and they are a giant one. My friend, Darren Naish, has moved to using the word arch predator, so it’s like some kind of massive thing, but avoiding the term apex because I think that leads into a… It’s a subtle terminology thing, but like…
I have a problem with the term apex predator because ecologically, apex predators are generally defined as things that eat other predators. So a great white shark is, because it’s eating stuff like tuna and sea lions, which are themselves predators, so it’s a predator of predators. Whereas people love saying lions are apex predators, and they love saying T-Rex is an apex predator. They’re eating herbivores. This is not some weird and unusual thing. They’re the largest predator in their ecosystem, and they are a giant one. My friend, Darren Naish, has moved to using the word arch predator, so it’s like some kind of massive thing, but avoiding the term apex because I think that leads into a… It’s a subtle terminology thing, but like…
Lex Fridman
An important one. I just learned something new today. So I didn’t understand, I thought I was using the word apex predator as…
An important one. I just learned something new today. So I didn’t understand, I thought I was using the word apex predator as…
Dave Hone
But that’s because everyone keeps using it when I don’t think they should.
But that’s because everyone keeps using it when I don’t think they should.
Lex Fridman
All right.
All right.
Dave Hone
And now you’re getting into linguistics, and it’s like, well, if everyone uses it to mean that, does it now mean that rather than what it should mean? And then I’m probably losing that argument because actually you’ll probably find way more stuff calling it an apex predator than you will an arch predator, but here we are.
And now you’re getting into linguistics, and it’s like, well, if everyone uses it to mean that, does it now mean that rather than what it should mean? And then I’m probably losing that argument because actually you’ll probably find way more stuff calling it an apex predator than you will an arch predator, but here we are.
Lex Fridman
Arch predator, beautiful. I learned something today.
Arch predator, beautiful. I learned something today.
Dave Hone
It’s-
It’s-
Lex Fridman
But that, what, that you’re saying T-Rex didn’t eat other predators?
But that, what, that you’re saying T-Rex didn’t eat other predators?
Dave Hone
Well, it’s probably not going to. So we can get into, though I’d prefer not to because it’s tedious, the argument of whether or not there are these small things which some people have said is a different group called Nanotyrannus, or a different species called Nanotyrannus. But fundamentally, T-Rex is definitely weird, even compared to all the other giant tyrannosaurs that are very closely related to it, because it is by far, ludicrously by far, the largest carnivore in its ecosystem. So…
Well, it’s probably not going to. So we can get into, though I’d prefer not to because it’s tedious, the argument of whether or not there are these small things which some people have said is a different group called Nanotyrannus, or a different species called Nanotyrannus. But fundamentally, T-Rex is definitely weird, even compared to all the other giant tyrannosaurs that are very closely related to it, because it is by far, ludicrously by far, the largest carnivore in its ecosystem. So…
Lex Fridman
So it doesn’t really have competition, actually?
So it doesn’t really have competition, actually?
Dave Hone
I mean, so this is a Velociraptor skull. There are some carnivores that are a bit bigger than this… …But not enormously so which we’re knocking around as T-Rex. The skull’s the same type. Right, but, like, you think about that. And that’s like going to Africa and going, “Okay, there are lions. What’s the next biggest predator?” And it’s like, well, there’s a weasel about this big. Like, it’s that kind of size difference, and you don’t get that normally in ecosystems.
I mean, so this is a Velociraptor skull. There are some carnivores that are a bit bigger than this… …But not enormously so which we’re knocking around as T-Rex. The skull’s the same type. Right, but, like, you think about that. And that’s like going to Africa and going, “Okay, there are lions. What’s the next biggest predator?” And it’s like, well, there’s a weasel about this big. Like, it’s that kind of size difference, and you don’t get that normally in ecosystems.
Lex Fridman
So it didn’t have some of the other big dinosaurs around it?
So it didn’t have some of the other big dinosaurs around it?
Dave Hone
Not carnivores. There are huge herbivores.
Not carnivores. There are huge herbivores.
Lex Fridman
Oh, there…
Oh, there…
Dave Hone
But there are no huge carnivores around.
But there are no huge carnivores around.
Lex Fridman
Oh, I see. It would eat those juveniles of the herbivores, but not…
Oh, I see. It would eat those juveniles of the herbivores, but not…
Dave Hone
Oh, yeah. It’s gonna be eating Triceratops and Edmontosaurus and Parasaurolophus. There are even a couple of giant sauropods knocking around in some places.
Oh, yeah. It’s gonna be eating Triceratops and Edmontosaurus and Parasaurolophus. There are even a couple of giant sauropods knocking around in some places.
Lex Fridman
Got it.
Got it.
Dave Hone
It’s gonna be hoovering them up, but how often is it gonna eat… Again, Velociraptor isn’t there, but how often is it gonna eat something the size of an adult Velociraptor? I mean, they’re a fraction of our size, and we’re probably too small. This is like lions hunting mice. You’re just not gonna, unless one virtually runs into your mouth, you’re not gonna go and try and eat it.
It’s gonna be hoovering them up, but how often is it gonna eat… Again, Velociraptor isn’t there, but how often is it gonna eat something the size of an adult Velociraptor? I mean, they’re a fraction of our size, and we’re probably too small. This is like lions hunting mice. You’re just not gonna, unless one virtually runs into your mouth, you’re not gonna go and try and eat it.
Lex Fridman
So the question still stands about arch predators then, like how do you win in evolution?
So the question still stands about arch predators then, like how do you win in evolution?
Dave Hone
Yeah. Well, I mean, there’s no real winners, there’s just, you know, turnover because ultimately the birds, you know, it still lost out when things went wrong. And as we were just talking about, you know, things do tend to lose out when they’re big. They’re just so much more vulnerable to extinction. But clearly, dinosaurian ecosystems had much bigger herbivores, and therefore by extent, much bigger carnivores than any system we’ve seen before or after.
Yeah. Well, I mean, there’s no real winners, there’s just, you know, turnover because ultimately the birds, you know, it still lost out when things went wrong. And as we were just talking about, you know, things do tend to lose out when they’re big. They’re just so much more vulnerable to extinction. But clearly, dinosaurian ecosystems had much bigger herbivores, and therefore by extent, much bigger carnivores than any system we’ve seen before or after.
Dave Hone
Even in relatively sparse ones, like bits of the Late Triassic, when the dinosaurs were really just getting going, or the very Early Jurassic, you’ve still got some multi-ton herbivores and then you’ve got some multiple 100-kilo predators, about as big as elephants and lions get today. And then once you’re in the Jurassic and Cretaceous, it is entirely normal to have multiple species that are 10, 20, 30 tons plus as herbivores and anything up to five tons as a carnivore. T-Rex is probably the biggest of them, but fully terrestrial carnivores that exceed a ton? There are dozens of species of dinosaurs.
Even in relatively sparse ones, like bits of the Late Triassic, when the dinosaurs were really just getting going, or the very Early Jurassic, you’ve still got some multi-ton herbivores and then you’ve got some multiple 100-kilo predators, about as big as elephants and lions get today. And then once you’re in the Jurassic and Cretaceous, it is entirely normal to have multiple species that are 10, 20, 30 tons plus as herbivores and anything up to five tons as a carnivore. T-Rex is probably the biggest of them, but fully terrestrial carnivores that exceed a ton? There are dozens of species of dinosaurs.
Lex Fridman
Is it interesting to you that no other carnivore predator was able to develop in that environment over millions of years?
Is it interesting to you that no other carnivore predator was able to develop in that environment over millions of years?
Dave Hone
I mean, they’re probably just ecologically dominant in the way that mammals are now, you know. Crocs get bigger than lions and tigers, but they’re fundamentally tied to the water, but you don’t see crocs roaming the Serengeti or anything like that. But yeah, big, I mean, the really big crocs even now get to over a ton, so those are very serious animals. And I think big polar bears are in the, like, 500-kilo range, though again, they hunt a lot of stuff in water, and then things like grizzlies are at least partially herbivorous or omnivorous.
I mean, they’re probably just ecologically dominant in the way that mammals are now, you know. Crocs get bigger than lions and tigers, but they’re fundamentally tied to the water, but you don’t see crocs roaming the Serengeti or anything like that. But yeah, big, I mean, the really big crocs even now get to over a ton, so those are very serious animals. And I think big polar bears are in the, like, 500-kilo range, though again, they hunt a lot of stuff in water, and then things like grizzlies are at least partially herbivorous or omnivorous.
Lex Fridman
Well, so there was a very large marine reptile, Mosasaurus. Did T-Rex ever come across that?
Well, so there was a very large marine reptile, Mosasaurus. Did T-Rex ever come across that?
Dave Hone
In theory at least, the really giant Mosasaurs are much bigger, in the same way that, unsurprisingly, whales are much bigger than terrestrial carnivores now. Jurassic Park, unsurprisingly, has rather exaggerated it, so the one from, I think, Jurassic World is like twice the size it should be. But some of these things were still, like, you know, 15, 20 meters. But yeah, some of them are absolutely giant. We had one dug up in the UK just a couple of years ago, and I got to see the skull of it, or a cast of the skull, and yeah, it’s about the same size as a T-Rex skull.
In theory at least, the really giant Mosasaurs are much bigger, in the same way that, unsurprisingly, whales are much bigger than terrestrial carnivores now. Jurassic Park, unsurprisingly, has rather exaggerated it, so the one from, I think, Jurassic World is like twice the size it should be. But some of these things were still, like, you know, 15, 20 meters. But yeah, some of them are absolutely giant. We had one dug up in the UK just a couple of years ago, and I got to see the skull of it, or a cast of the skull, and yeah, it’s about the same size as a T-Rex skull.
Lex Fridman
If we take a ridiculous detour before we get back to science, what creature in the history of Earth would challenge a T-Rex in a fight, would you say? What…
If we take a ridiculous detour before we get back to science, what creature in the history of Earth would challenge a T-Rex in a fight, would you say? What…
Dave Hone
On, on land?
On, on land?
Lex Fridman
On land.
On land.
Dave Hone
I mean, nothing reasonable. The really big ones… The only other thing you can really add is, so this might be a very British adage, it’s not the size of the dog in the fight, it’s the size of the fight in the dog. So yeah, maybe there’s something a bit smaller which is just hyper-aggressive, and that would be enough to win, like the classic honey badgers chasing off lions. It’s not that a honey badger would win in a fight, but if the honey badger is prepared to put up that much of a fight and the lion really doesn’t want to get hurt, then he kind of technically wins.
I mean, nothing reasonable. The really big ones… The only other thing you can really add is, so this might be a very British adage, it’s not the size of the dog in the fight, it’s the size of the fight in the dog. So yeah, maybe there’s something a bit smaller which is just hyper-aggressive, and that would be enough to win, like the classic honey badgers chasing off lions. It’s not that a honey badger would win in a fight, but if the honey badger is prepared to put up that much of a fight and the lion really doesn’t want to get hurt, then he kind of technically wins.
Lex Fridman
You can’t imagine any of the cats, like tigers, none of them… …Can do, I mean, the size difference, the power of the jaw, all of that kind of stuff.
You can’t imagine any of the cats, like tigers, none of them… …Can do, I mean, the size difference, the power of the jaw, all of that kind of stuff.
Dave Hone
Yeah, but going to T-Rex, like, what could reasonably challenge it? There are a couple of other giant tyrannosaurs, there are a couple of giant carcharodontosaurs from South America that I would say are comparable in linear measurements, but are probably rather smaller and rather lighter, in which case your money is going to be on the bigger guy with the bigger bite. And that simply is T-Rex.
Yeah, but going to T-Rex, like, what could reasonably challenge it? There are a couple of other giant tyrannosaurs, there are a couple of giant carcharodontosaurs from South America that I would say are comparable in linear measurements, but are probably rather smaller and rather lighter, in which case your money is going to be on the bigger guy with the bigger bite. And that simply is T-Rex.
Lex Fridman
And the bite is important.
And the bite is important.
Dave Hone
Yeah, I think it is because, yeah, these guys, the carcharodontosaurs, they’re much more cutting and they’re really killing stuff probably by grappling with the arms because they do have big muscular arms with big claws, and then slashing away at stuff. So I think they’re probably doing something more like almost like wolves or hyenas or a hunting dog, where they’re harrying stuff and slashing at it and you’re basically bleeding them out… …And wearing them down.
Yeah, I think it is because, yeah, these guys, the carcharodontosaurs, they’re much more cutting and they’re really killing stuff probably by grappling with the arms because they do have big muscular arms with big claws, and then slashing away at stuff. So I think they’re probably doing something more like almost like wolves or hyenas or a hunting dog, where they’re harrying stuff and slashing at it and you’re basically bleeding them out… …And wearing them down.
Lex Fridman
So, what about that strategy? So maybe you could speak to biting strategy. So a T-Rex is, I guess, a relatively slow bite but extremely powerful. What about animals that have very fast bites?
So, what about that strategy? So maybe you could speak to biting strategy. So a T-Rex is, I guess, a relatively slow bite but extremely powerful. What about animals that have very fast bites?
Dave Hone
So it’s very simple mechanics, you know. If you have a very long jaw, you’re going to close faster but with less power at the tip than if you have a really short one that’s deep. And so that really is it. But yeah, let’s say there are things like the aramins and then there are things like, you know, Velociraptor and a lot of its relatives, really very small, but narrow-snouted. There’s not going to be a lot of fundamental strength here. The teeth, very numerous, very small, so they’re much more about grabbing something tiny, you know. Velociraptors eating rat-sized stuff, that’s going to be probably its primary diet, or…
So it’s very simple mechanics, you know. If you have a very long jaw, you’re going to close faster but with less power at the tip than if you have a really short one that’s deep. And so that really is it. But yeah, let’s say there are things like the aramins and then there are things like, you know, Velociraptor and a lot of its relatives, really very small, but narrow-snouted. There’s not going to be a lot of fundamental strength here. The teeth, very numerous, very small, so they’re much more about grabbing something tiny, you know. Velociraptors eating rat-sized stuff, that’s going to be probably its primary diet, or…
Lex Fridman
So, so I wonder if there’s a bunch…
So, so I wonder if there’s a bunch…
Dave Hone
…kind of diet.
…kind of diet.
Lex Fridman
…of smaller fast-biting things that could just bleed a T-Rex to death.
…of smaller fast-biting things that could just bleed a T-Rex to death.
Dave Hone
They’re going to struggle, though. I remember doing some work for one documentary, and they literally wanted a Velociraptor fighting a T-Rex, and I was sort of like, “You do know this is, like-” “… we’re gonna shoot some meerkats killing a lion.” And it’s like, well, you can film it, but no one would believe it, because, you know, these ankle-high things trying to savage a shin bone, I’m sure they’ll make some holes and it’ll lose some blood, and it may not be very happy, but I don’t think they’re gonna win.
They’re going to struggle, though. I remember doing some work for one documentary, and they literally wanted a Velociraptor fighting a T-Rex, and I was sort of like, “You do know this is, like-” “… we’re gonna shoot some meerkats killing a lion.” And it’s like, well, you can film it, but no one would believe it, because, you know, these ankle-high things trying to savage a shin bone, I’m sure they’ll make some holes and it’ll lose some blood, and it may not be very happy, but I don’t think they’re gonna win.
What Jurassic Park got wrong
Lex Fridman
The size of a velociraptor was exaggerated by Jurassic Park.
The size of a velociraptor was exaggerated by Jurassic Park.
Dave Hone
Oh, enormously. I mean, they get a bit bigger than this. … In terms of the skull. But yeah, they’re kind of thigh-high to me, like a meter or so to the top of the head, two meters long, whereas in the movies, they’re standing taller than guys who are six feet. So it’s just massively, massively scaled up, and then these kind of big, domey heads, and they’re not the really long, narrow snout.
Oh, enormously. I mean, they get a bit bigger than this. … In terms of the skull. But yeah, they’re kind of thigh-high to me, like a meter or so to the top of the head, two meters long, whereas in the movies, they’re standing taller than guys who are six feet. So it’s just massively, massively scaled up, and then these kind of big, domey heads, and they’re not the really long, narrow snout.
Lex Fridman
Maybe we could change that. What does the Jurassic Park and Jurassic World franchise get right and wrong?
Maybe we could change that. What does the Jurassic Park and Jurassic World franchise get right and wrong?
Dave Hone
I mean, they get wrong a hell of a lot.
I mean, they get wrong a hell of a lot.
Lex Fridman
What are some of the really definitive things to you that are interesting that it gets wrong, and also what are the things it gets pretty close to right?
What are some of the really definitive things to you that are interesting that it gets wrong, and also what are the things it gets pretty close to right?
Dave Hone
I mean, I just want to preface my answer, because I always get asked about this, understandably, and it’s like I get that it’s a movie, but if someone’s gonna ask me, “What does it get wrong?” I’m gonna give them an answer, but I do get people going, “Ah, you’re just nitpicking. Ah, you know it’s fiction. Ah, you know it’s made up.” Yeah, I do know, but someone asked the question, so here’s the answer.
I mean, I just want to preface my answer, because I always get asked about this, understandably, and it’s like I get that it’s a movie, but if someone’s gonna ask me, “What does it get wrong?” I’m gonna give them an answer, but I do get people going, “Ah, you’re just nitpicking. Ah, you know it’s fiction. Ah, you know it’s made up.” Yeah, I do know, but someone asked the question, so here’s the answer.
Lex Fridman
I should say that some of the things that I’ve heard you describe, I feel like it’s the responsibility of those folks to get it right. I think there’s something I really deeply admire. There’s a show called Chernobyl. It’s like they don’t need to be that accurate, but they really… it’s like the detail of the kitchenware- in a room, just to get the tiniest detail right. Who’s that for? I don’t know who that’s for, but that’s great art. That’s the spirit of the thing. If you focus on getting those tiny details right, some magical thing happens about the bigger story. If you don’t care about the details, the story gets corrupted. So, I just wanted to say that some of the things you describe, like how many fingers, um-
I should say that some of the things that I’ve heard you describe, I feel like it’s the responsibility of those folks to get it right. I think there’s something I really deeply admire. There’s a show called Chernobyl. It’s like they don’t need to be that accurate, but they really… it’s like the detail of the kitchenware- in a room, just to get the tiniest detail right. Who’s that for? I don’t know who that’s for, but that’s great art. That’s the spirit of the thing. If you focus on getting those tiny details right, some magical thing happens about the bigger story. If you don’t care about the details, the story gets corrupted. So, I just wanted to say that some of the things you describe, like how many fingers, um-
Lex Fridman
… it’s like that’s important to get that right, because if you do, some magical stuff can really emerge. And it could become a legendary film as opposed to just a- … a summer hit.
… it’s like that’s important to get that right, because if you do, some magical stuff can really emerge. And it could become a legendary film as opposed to just a- … a summer hit.
Dave Hone
… that’s my take. Again, I’ve worked on documentaries where they’re claiming that accuracy is absolutely critical and 100% important, and they won’t put anything on screen that I haven’t told them to, and- …then many of those things turn out not to be quite as true as advertised, once you get around to it. So, I’m aware that when even documentaries will take massive liberties, you can’t be too harsh on what is popular fiction. On the other hand, I am also aware that it is by far, by a ludicrous degree, the most popular bit of any kind of media that includes my work…
… that’s my take. Again, I’ve worked on documentaries where they’re claiming that accuracy is absolutely critical and 100% important, and they won’t put anything on screen that I haven’t told them to, and- …then many of those things turn out not to be quite as true as advertised, once you get around to it. So, I’m aware that when even documentaries will take massive liberties, you can’t be too harsh on what is popular fiction. On the other hand, I am also aware that it is by far, by a ludicrous degree, the most popular bit of any kind of media that includes my work…
Dave Hone
…as it were, or something that I’m actively engaged in and know about. So, whether or not it should have that influence or whether or not the filmmakers should have responsibility, it does. It does have that knock-on. So, I mean, it’s simple as stuff as T-rex can’t see if you can’t move. Yeah, it could. I don’t know where that came from. As far as I can tell, Crichton just dreamed it up. In The Lost World, his sequel book, he hints that there’s a research paper that says it, and that’s kind of where he got it from. There’s a second paleontologist character who’s advising Dodgson, the evil InGen guy, and he says, “Oh, no, well, that’s from such-and-such’s research.” And, like, I tried looking it up. As far as I can tell, it doesn’t exist and never did.
…as it were, or something that I’m actively engaged in and know about. So, whether or not it should have that influence or whether or not the filmmakers should have responsibility, it does. It does have that knock-on. So, I mean, it’s simple as stuff as T-rex can’t see if you can’t move. Yeah, it could. I don’t know where that came from. As far as I can tell, Crichton just dreamed it up. In The Lost World, his sequel book, he hints that there’s a research paper that says it, and that’s kind of where he got it from. There’s a second paleontologist character who’s advising Dodgson, the evil InGen guy, and he says, “Oh, no, well, that’s from such-and-such’s research.” And, like, I tried looking it up. As far as I can tell, it doesn’t exist and never did.
Dave Hone
So, I think it’s just straight fiction. It works for the book and it works for the movie, but it’s… as far as I can tell, it’s straight fiction, and Crichton just made it up. If it’s buried in some bit of literature, he’s done better finding it than I have, and I’ve had a really good look, and I know how to look. And I’ve never come across anyone who’s found it either. But it does, it just warps the perception, you know. Velociraptor, cheetah speed, pack hunters, super intelligent, giant-sized animals, and, okay, 1993 it’s a bit more forgivable, but even then we were pretty confident they had feathers.
So, I think it’s just straight fiction. It works for the book and it works for the movie, but it’s… as far as I can tell, it’s straight fiction, and Crichton just made it up. If it’s buried in some bit of literature, he’s done better finding it than I have, and I’ve had a really good look, and I know how to look. And I’ve never come across anyone who’s found it either. But it does, it just warps the perception, you know. Velociraptor, cheetah speed, pack hunters, super intelligent, giant-sized animals, and, okay, 1993 it’s a bit more forgivable, but even then we were pretty confident they had feathers.
Lex Fridman
Is any of that true? Wait, so…
Is any of that true? Wait, so…
Dave Hone
Probably not.
Probably not.
Lex Fridman
The pack hunter aspect of it?
The pack hunter aspect of it?
Dave Hone
So, that’s something I’ve written quite a lot about. The evidence for pack hunting in any dinosaur at all is almost nonexistent. It basically doesn’t exist. And that’s going exactly back to, again, that stuff we were talking about, bite marks and taphonomy and the history of specimens and how you interpret stuff.
So, that’s something I’ve written quite a lot about. The evidence for pack hunting in any dinosaur at all is almost nonexistent. It basically doesn’t exist. And that’s going exactly back to, again, that stuff we were talking about, bite marks and taphonomy and the history of specimens and how you interpret stuff.
Lex Fridman
So, what kind of evidence would show, like, maybe bite marks from multiple sources? Is that…
So, what kind of evidence would show, like, maybe bite marks from multiple sources? Is that…
Dave Hone
So, it’s really, really tough. The main one which was put forward is… there’s this famous association in Montana of Deinonychus, which is often confused with Velociraptor, including in the books and movie. Basically, a bigger version of this that’s rather older, from the early Cretaceous, and a thing called Tenontosaurus, which is kind of iguanodontian. So, an iguanodon with spiky thumbs. Basically, otherwise, a fairly run-of-the-mill herbivore. And there are two sites, I believe, for this, but there’s one that’s much more important, where you have a Tenontosaurus carcass with Deinonychus carcasses. And so, the interpretation of this is, well, this is a group that brought down the herbivore. And of course, the immediate counterargument to that is, “Well, why did they all die there?”
So, it’s really, really tough. The main one which was put forward is… there’s this famous association in Montana of Deinonychus, which is often confused with Velociraptor, including in the books and movie. Basically, a bigger version of this that’s rather older, from the early Cretaceous, and a thing called Tenontosaurus, which is kind of iguanodontian. So, an iguanodon with spiky thumbs. Basically, otherwise, a fairly run-of-the-mill herbivore. And there are two sites, I believe, for this, but there’s one that’s much more important, where you have a Tenontosaurus carcass with Deinonychus carcasses. And so, the interpretation of this is, well, this is a group that brought down the herbivore. And of course, the immediate counterargument to that is, “Well, why did they all die there?”
Dave Hone
When lions kill a wildebeest, they eat it. They don’t all just die next to it.
When lions kill a wildebeest, they eat it. They don’t all just die next to it.
Dave Hone
Or even if they did kill it and start eating it, and then, like, if they got into a fight and killed each other, well, lions as a species are not going to hang around for very long if every time they kill something they get into a mortal fight and kill half their pride. There’s nothing obvious that killed them, but it’s at least possible that this was something like a predator trap. So, predator traps are really neat. La Brea Tar Pits is a classic example. The idea is a herbivore stumbles into something like tar. You’ve got your deer or wildebeest or mammoth or whatever it is waist-deep in tar and going, “I’m dying, I’m dying,” and making horrible noises. And, you know, Smilodon walks over and goes, “Great,” and wades out after it, and he’s now stuck.
Or even if they did kill it and start eating it, and then, like, if they got into a fight and killed each other, well, lions as a species are not going to hang around for very long if every time they kill something they get into a mortal fight and kill half their pride. There’s nothing obvious that killed them, but it’s at least possible that this was something like a predator trap. So, predator traps are really neat. La Brea Tar Pits is a classic example. The idea is a herbivore stumbles into something like tar. You’ve got your deer or wildebeest or mammoth or whatever it is waist-deep in tar and going, “I’m dying, I’m dying,” and making horrible noises. And, you know, Smilodon walks over and goes, “Great,” and wades out after it, and he’s now stuck.
Dave Hone
And then the next one, and then the next one, and the next one, and the next one. And then, lo and behold, you now have something like La Brea where they’ve got the numbers are something absurd, like, I think they’ve got three mammoths and one ground sloth, and then it’s like a hundred dire wolves and 40 Smilodon because it’s just sucking the carnivores in.
And then the next one, and then the next one, and the next one, and the next one. And then, lo and behold, you now have something like La Brea where they’ve got the numbers are something absurd, like, I think they’ve got three mammoths and one ground sloth, and then it’s like a hundred dire wolves and 40 Smilodon because it’s just sucking the carnivores in.
Lex Fridman
Wow.
Wow.
Dave Hone
And you get these really distorted ratios. I don’t think that’s the case with the Deinonychus-Tenontosaurus stuff because there are ways that you can probably rule that out. But there are probably places like this where it’s happened. Again, the other one is the toxin one whose n- Yeah, Cleveland-Lloyd, so it’s just coming up on your screen. That’s another one with loads of dinosaurs. There’s Allosaurus. But we’ve definitely seen it with… I think this has come up with something like lions or wolves. Like, they found loads of them dead by a lake and it turned out, or this pond. And this pond had got some really nasty algal bloom toxin in it, and the interpretation was the same kind of thing, is that, like, a couple of deer were drinking.
And you get these really distorted ratios. I don’t think that’s the case with the Deinonychus-Tenontosaurus stuff because there are ways that you can probably rule that out. But there are probably places like this where it’s happened. Again, the other one is the toxin one whose n- Yeah, Cleveland-Lloyd, so it’s just coming up on your screen. That’s another one with loads of dinosaurs. There’s Allosaurus. But we’ve definitely seen it with… I think this has come up with something like lions or wolves. Like, they found loads of them dead by a lake and it turned out, or this pond. And this pond had got some really nasty algal bloom toxin in it, and the interpretation was the same kind of thing, is that, like, a couple of deer were drinking.
Dave Hone
This stuff’s toxic and kills you within minutes, keels over, dies. Wolf smells dead meat, comes over, starts eating it, has a drink, keels over and dies. So it’s not getting… You’re just dying from the toxicity rather than being physically sucked in and trapped. But the same effect can happen, and so you just end up with a pile of dead bodies.
This stuff’s toxic and kills you within minutes, keels over, dies. Wolf smells dead meat, comes over, starts eating it, has a drink, keels over and dies. So it’s not getting… You’re just dying from the toxicity rather than being physically sucked in and trapped. But the same effect can happen, and so you just end up with a pile of dead bodies.
Lex Fridman
So, I’m pulling up some stuff here. First of all, shout out to Perplexity. Super awesome. It’d be great if you fact-check some of this stuff. So, fossil discoveries, including parallel trackways and bone beds containing multiple tyrannosaurs suggests these large predators sometimes moved and possibly hunted in groups. You as a person who wrote a book about the behavior of dinosaurs.
So, I’m pulling up some stuff here. First of all, shout out to Perplexity. Super awesome. It’d be great if you fact-check some of this stuff. So, fossil discoveries, including parallel trackways and bone beds containing multiple tyrannosaurs suggests these large predators sometimes moved and possibly hunted in groups. You as a person who wrote a book about the behavior of dinosaurs.
Dave Hone
Yep. Let me deconstruct that almost instantly. So, because it’s really easy. My book on dinosaur behavior, this is just the kind of thing I’m talking about. So, the tyrannosaur trackways of a group of tyrannosaurs is, I think, four or five tracks total. So, it’s like two from one animal, two from a second animal, and one from a third animal. That’s not the end of the world. That’s somehow how trackways form. You know, the rock’s broken up. They stood on mud and then they didn’t, whatever.
Yep. Let me deconstruct that almost instantly. So, because it’s really easy. My book on dinosaur behavior, this is just the kind of thing I’m talking about. So, the tyrannosaur trackways of a group of tyrannosaurs is, I think, four or five tracks total. So, it’s like two from one animal, two from a second animal, and one from a third animal. That’s not the end of the world. That’s somehow how trackways form. You know, the rock’s broken up. They stood on mud and then they didn’t, whatever.
Lex Fridman
Just to clarify, trackways means footprints of multiple, maybe steps?
Just to clarify, trackways means footprints of multiple, maybe steps?
Dave Hone
Yeah, one of them has got a left and right, and the other two don’t. It’s very fragmentary, but I have no… That’s not a problem with the interpretation. The problem is this is interpreted as a group of them moving together. Well, why? Because they’re going in roughly the same direction. Okay. And they’re roughly equal sizes. Okay. But, like, I’ve seen solitary animals moving in groups. A guy I know quite well in South Africa… I go to South Africa regularly for my teaching, actually, and he’s one of the big guys at South Africa National Parks, and he gives me the skinny on all kinds of weird stuff. And he was telling me a few years ago that one of his park rangers had observed leopards hunting together in a group.
Yeah, one of them has got a left and right, and the other two don’t. It’s very fragmentary, but I have no… That’s not a problem with the interpretation. The problem is this is interpreted as a group of them moving together. Well, why? Because they’re going in roughly the same direction. Okay. And they’re roughly equal sizes. Okay. But, like, I’ve seen solitary animals moving in groups. A guy I know quite well in South Africa… I go to South Africa regularly for my teaching, actually, and he’s one of the big guys at South Africa National Parks, and he gives me the skinny on all kinds of weird stuff. And he was telling me a few years ago that one of his park rangers had observed leopards hunting together in a group.
Dave Hone
Now, leopards are basically not just solitary, they’re like antisocial. They beat the hell out of each other if they come near each other. But I’ve also seen… You know, you get… Game trails are a thing, paths that single animals take. If a female is in heat, males will track her down and follow her. So you’ll get one set of footprints, and then a couple of hours later, a male will come past, and a couple of hours later, another male will come past. And now you’ve got three sets of footprints all traveling in the same direction on the same bit of path, but they live on their own.
Now, leopards are basically not just solitary, they’re like antisocial. They beat the hell out of each other if they come near each other. But I’ve also seen… You know, you get… Game trails are a thing, paths that single animals take. If a female is in heat, males will track her down and follow her. So you’ll get one set of footprints, and then a couple of hours later, a male will come past, and a couple of hours later, another male will come past. And now you’ve got three sets of footprints all traveling in the same direction on the same bit of path, but they live on their own.
Dave Hone
Let alone hunting together, which is a massive step above this. And then the one I’ve talked about quite a bit in my book is spotted hyena, Crocuta crocuta, which is the one… There’s a whole bunch of hyenas, but this is the one everyone knows. They’re the big laughing hyena. And you can see plenty of Attenborough-type documentaries of them, seven or eight of them, or even 10 or 12 of them going into a herd and ripping apart wildebeest or zebra or whatever it is. But actually, if you read the scientific literature, this is really rare. They mostly hunt on their own. Now, they do live in these social clans with hierarchies and complex social interactions. They are very social animals.
Let alone hunting together, which is a massive step above this. And then the one I’ve talked about quite a bit in my book is spotted hyena, Crocuta crocuta, which is the one… There’s a whole bunch of hyenas, but this is the one everyone knows. They’re the big laughing hyena. And you can see plenty of Attenborough-type documentaries of them, seven or eight of them, or even 10 or 12 of them going into a herd and ripping apart wildebeest or zebra or whatever it is. But actually, if you read the scientific literature, this is really rare. They mostly hunt on their own. Now, they do live in these social clans with hierarchies and complex social interactions. They are very social animals.
Dave Hone
But they mostly hunt on their own. So even if you find loads of trackways of them moving together or, as again, there’s one, if not two, for tyrannosaurs, where we’ve got multiple tyrannosaurs together, and that’s been argued for pack hunting. At best, that argues they might have lived together, but it doesn’t tell you whether or not they hunted together.
But they mostly hunt on their own. So even if you find loads of trackways of them moving together or, as again, there’s one, if not two, for tyrannosaurs, where we’ve got multiple tyrannosaurs together, and that’s been argued for pack hunting. At best, that argues they might have lived together, but it doesn’t tell you whether or not they hunted together.
Lex Fridman
So, how can we make a decision one way or the other?
So, how can we make a decision one way or the other?
Dave Hone
So, I mean, I tend to be ultra-conservative in this context, and I think we should probably avoid saying things that we’re not quite confident about. I don’t want to ever go down the, “We must have really definitive, 100% convincing evidence,” because this is paleo and we don’t have that kind of data. But just as I talked about with things like the predator-prey size ratio stuff, there is data we can start to use on living species about what tends to trigger hunting in groups or living in groups, and what data there might be from stuff like brain sizes or other trackways. Or again, we do have bite marks indicating prey size. If you start finding repeated attacks on big prey from relatively small predators, that would be quite convincing.
So, I mean, I tend to be ultra-conservative in this context, and I think we should probably avoid saying things that we’re not quite confident about. I don’t want to ever go down the, “We must have really definitive, 100% convincing evidence,” because this is paleo and we don’t have that kind of data. But just as I talked about with things like the predator-prey size ratio stuff, there is data we can start to use on living species about what tends to trigger hunting in groups or living in groups, and what data there might be from stuff like brain sizes or other trackways. Or again, we do have bite marks indicating prey size. If you start finding repeated attacks on big prey from relatively small predators, that would be quite convincing.
Dave Hone
As you said, maybe we had bite marks of multiple different sizes. Now that on its own, it comes hard, because obviously scavenging… you know, tyrannosaurs are an exception. Most dinosaurs, most carnivorous dinosaurs have pretty similarly shaped teeth. So how easy is it to tell an adult from a juvenile from an adult from a different species that’s just a bit smaller? Probably pretty tricky. I mean, for me, I think the kind of gold standard, which I don’t think we’re ever going to find, but you never know, like, you could in theory get a trackway of something like a herbivore… with a whole bunch of carnivore tracks coming by it.
As you said, maybe we had bite marks of multiple different sizes. Now that on its own, it comes hard, because obviously scavenging… you know, tyrannosaurs are an exception. Most dinosaurs, most carnivorous dinosaurs have pretty similarly shaped teeth. So how easy is it to tell an adult from a juvenile from an adult from a different species that’s just a bit smaller? Probably pretty tricky. I mean, for me, I think the kind of gold standard, which I don’t think we’re ever going to find, but you never know, like, you could in theory get a trackway of something like a herbivore… with a whole bunch of carnivore tracks coming by it.
Dave Hone
We do have a couple like this, but they don’t have what I really want to see, which is if you trace the footprints of the individual carnivores, and if A’s early on, A’s footprint goes on top of B’s, but later on B’s go on top of A’s, they must have been there at the same time because there’s no way they could have been even minutes or hours apart. So if you had that, then those two must be together, or at least within sight of each other, and one’s not turning around and roaring or having a fight. If you can do that with seven or eight, all converging on one herbivore, and then everything goes manic, well, that’s really pretty convincing.
We do have a couple like this, but they don’t have what I really want to see, which is if you trace the footprints of the individual carnivores, and if A’s early on, A’s footprint goes on top of B’s, but later on B’s go on top of A’s, they must have been there at the same time because there’s no way they could have been even minutes or hours apart. So if you had that, then those two must be together, or at least within sight of each other, and one’s not turning around and roaring or having a fight. If you can do that with seven or eight, all converging on one herbivore, and then everything goes manic, well, that’s really pretty convincing.
Lex Fridman
It is so fascinating and awesome, like the Sherlock Holmes aspect of paleontology. Like figuring out… because you have very little signal… …And you have to figure out the puzzle of it from that. And like that’s the… it’s just you’re brilliant… You’re giving so many brilliant examples of like, yeah, if A steps on top of B and then B steps on top of A, that’s a strong signal that they were walking together.
It is so fascinating and awesome, like the Sherlock Holmes aspect of paleontology. Like figuring out… because you have very little signal… …And you have to figure out the puzzle of it from that. And like that’s the… it’s just you’re brilliant… You’re giving so many brilliant examples of like, yeah, if A steps on top of B and then B steps on top of A, that’s a strong signal that they were walking together.
Dave Hone
I am a bit of a Sherlock Holmes fan, and he references Cuvier. So Cuvier was this legendary French anatomist, Baron Cuvier. He was the first guy to posit that things went extinct, working on mammoths. And he said, “Well, there’s nothing like this alive today, so extinction happens,” which before that we didn’t really know. And Holmes has a line about, “Just as Cuvier can restore an animal from the smallest bone, so I can restore the events from the smallest detail.” Or I…
I am a bit of a Sherlock Holmes fan, and he references Cuvier. So Cuvier was this legendary French anatomist, Baron Cuvier. He was the first guy to posit that things went extinct, working on mammoths. And he said, “Well, there’s nothing like this alive today, so extinction happens,” which before that we didn’t really know. And Holmes has a line about, “Just as Cuvier can restore an animal from the smallest bone, so I can restore the events from the smallest detail.” Or I…
Lex Fridman
Damn.
Damn.
Dave Hone
…I’m paraphrasing, but I’m not far off.
…I’m paraphrasing, but I’m not far off.
Lex Fridman
Yeah, there’s truth to that.
Yeah, there’s truth to that.
Dave Hone
You, you have used an analogy that Conan Doyle specifically used for Holmes going back to paleontology.
You, you have used an analogy that Conan Doyle specifically used for Holmes going back to paleontology.
Lex Fridman
I mean, it’s obvious. It’s clear. It’s right there, yeah.
I mean, it’s obvious. It’s clear. It’s right there, yeah.
Dave Hone
That’s how on the nose you are with that one.
That’s how on the nose you are with that one.
Lex Fridman
So, okay. So basically, you clarified and showed all the things Jurassic got it wrong.
So, okay. So basically, you clarified and showed all the things Jurassic got it wrong.
Dave Hone
Yeah, we, yeah, we got off-topic before we even got onto Jurassic Park.
Yeah, we, yeah, we got off-topic before we even got onto Jurassic Park.
Lex Fridman
And just velociraptor you said that the, you know, the, yeah, the size, the pack hunting, all of that.
And just velociraptor you said that the, you know, the, yeah, the size, the pack hunting, all of that.
Dave Hone
The pack hunting, just to round off on that, I don’t know. Maybe there’s actually been some more recent stuff on Deinonychus looking at things like isotopes in the teeth and feeding traces and some other stuff that’s hinting that maybe there is more going on there, which is great. I’m not anti the idea that this exists, but you absolutely get this build-up of… The idea that velociraptors are a pack hunter comes from Deinonychus, and I think the evidence from Deinonychus is really weak, in exactly the way that… Okay, lions are group hunters. We know they are. Does that mean that leopards are? And tigers and puma? No. So why on Earth do you think that just because, even if Deinonychus is, that doesn’t really tell you anything about velociraptor?
The pack hunting, just to round off on that, I don’t know. Maybe there’s actually been some more recent stuff on Deinonychus looking at things like isotopes in the teeth and feeding traces and some other stuff that’s hinting that maybe there is more going on there, which is great. I’m not anti the idea that this exists, but you absolutely get this build-up of… The idea that velociraptors are a pack hunter comes from Deinonychus, and I think the evidence from Deinonychus is really weak, in exactly the way that… Okay, lions are group hunters. We know they are. Does that mean that leopards are? And tigers and puma? No. So why on Earth do you think that just because, even if Deinonychus is, that doesn’t really tell you anything about velociraptor?
Dave Hone
Group hunting has all kinds of more complicated dynamics going on than just close relatives tend to do it. You can flip that around, you know. African hunting dog, wolves, things like bush dogs. There are various canids that all hunt in groups, but then you’ve got things like maned wolves, which are effectively solitary. The hyenas. Spotted hyenas are, yeah, these super social animals, but the brown hyena, the striped hyena, and the aardwolf are solitary. So you just can’t do group versus solitary off close relatives or anything like that. I am very sure a ton of dinosaurs were aggregates, lived in groups to some degree, and I’m very sure some of them were social with complex lives and hierarchies and even pack hunting.
Group hunting has all kinds of more complicated dynamics going on than just close relatives tend to do it. You can flip that around, you know. African hunting dog, wolves, things like bush dogs. There are various canids that all hunt in groups, but then you’ve got things like maned wolves, which are effectively solitary. The hyenas. Spotted hyenas are, yeah, these super social animals, but the brown hyena, the striped hyena, and the aardwolf are solitary. So you just can’t do group versus solitary off close relatives or anything like that. I am very sure a ton of dinosaurs were aggregates, lived in groups to some degree, and I’m very sure some of them were social with complex lives and hierarchies and even pack hunting.
Dave Hone
Which ones? I have very little idea because I think the data is so sparse that we can’t really say it with any confidence for anything, in my opinion. I think that can be got at. I think we need to start getting at it with the sort of stuff I’m talking about. Like, get a better understanding of what drives sociality in lions versus tigers versus leopards. You know, relatively close relatives who overlap. Don’t forget, in India, leopards and tigers overlap with lions. The Asiatic lion is still there. So you can talk about ecosystem structure and prey size and prey type and all this stuff. We can maybe, maybe we can start piecing that together a bit better and then apply that to stuff like the track ways and the isotopes and all the rest of it.
Which ones? I have very little idea because I think the data is so sparse that we can’t really say it with any confidence for anything, in my opinion. I think that can be got at. I think we need to start getting at it with the sort of stuff I’m talking about. Like, get a better understanding of what drives sociality in lions versus tigers versus leopards. You know, relatively close relatives who overlap. Don’t forget, in India, leopards and tigers overlap with lions. The Asiatic lion is still there. So you can talk about ecosystem structure and prey size and prey type and all this stuff. We can maybe, maybe we can start piecing that together a bit better and then apply that to stuff like the track ways and the isotopes and all the rest of it.
Dave Hone
Bite marks and these mass mortality sites. So I think it can be done, but personally, like, what were pack hunters? No idea. I don’t think, I don’t think any of them were in the sense that I don’t think we’ve got good evidence for any of them.
Bite marks and these mass mortality sites. So I think it can be done, but personally, like, what were pack hunters? No idea. I don’t think, I don’t think any of them were in the sense that I don’t think we’ve got good evidence for any of them.
Lex Fridman
But there probably exists on earth definitive evidence one way or the other.
But there probably exists on earth definitive evidence one way or the other.
Dave Hone
Yeah, probably for some of them. I mean, it’s, I think it’s well within their scope. One of the papers writing about this, ironically arguing against pack hunting in Deinonychus, said that, “Well, it’s probably not the case because you don’t really see pack hunting in birds. And so if you don’t see it in birds, then dinosaurs being their ancestor, well, if birds can’t evolve it, then maybe dinosaurs couldn’t have evolved it.” Which I’m not sure is a great logical argument because of the complexities of social behavior anyway, but then there are a couple of birds which actively hunt in groups. Things like the giant ground hornbills. Ethiopia and South Africa are a really good example of that. So that point is incorrect.
Yeah, probably for some of them. I mean, it’s, I think it’s well within their scope. One of the papers writing about this, ironically arguing against pack hunting in Deinonychus, said that, “Well, it’s probably not the case because you don’t really see pack hunting in birds. And so if you don’t see it in birds, then dinosaurs being their ancestor, well, if birds can’t evolve it, then maybe dinosaurs couldn’t have evolved it.” Which I’m not sure is a great logical argument because of the complexities of social behavior anyway, but then there are a couple of birds which actively hunt in groups. Things like the giant ground hornbills. Ethiopia and South Africa are a really good example of that. So that point is incorrect.
Dave Hone
And then we see, if not true sociality, we see cooperation in crocodilians, and we’re seeing degrees of social behavior in things like iguanas. So the idea that, like, “Well, birds are super advanced, and dinosaurs can’t do it ’cause the stupid reptiles are too stupid, and therefore dinosaurs are more like them,” which isn’t quite what they’re saying, but it’s sort of the unwritten idea, “Well, we have social behavior and cooperation behavior in crocs and in lizards.” So that really gives you the impression that dinosaurs, theoretically at least, are perfectly capable of that.
And then we see, if not true sociality, we see cooperation in crocodilians, and we’re seeing degrees of social behavior in things like iguanas. So the idea that, like, “Well, birds are super advanced, and dinosaurs can’t do it ’cause the stupid reptiles are too stupid, and therefore dinosaurs are more like them,” which isn’t quite what they’re saying, but it’s sort of the unwritten idea, “Well, we have social behavior and cooperation behavior in crocs and in lizards.” So that really gives you the impression that dinosaurs, theoretically at least, are perfectly capable of that.
Evolution and sexual selection
Lex Fridman
So there’s pack hunting, but there’s also sociality, which is such an interesting idea. It’s, how did they live? And this is something you look at that paleontology doesn’t often touch, is like, the lives.
So there’s pack hunting, but there’s also sociality, which is such an interesting idea. It’s, how did they live? And this is something you look at that paleontology doesn’t often touch, is like, the lives.
Dave Hone
Yeah, because, you know, animals are doing complicated things. So, you know, in the case of lions, a large part of this is down to territoriality in that the males ultimately are defending the territory, and that’s effectively protecting the females. But of course, what they’re mostly protecting them from is other males. So there’s a ludicrous bit of self-interest. But that’s effectively how it’s operating as a system. But it could just be predatory type. Cheetahs are my go-to example for this. So cheetahs are the weird ones compared to the other cats because females are solitary, but males are social. So brothers will… When, when, you know, if the female has five or six cubs, the brothers will stay together in a group, and then the girls will go off on their own.
Yeah, because, you know, animals are doing complicated things. So, you know, in the case of lions, a large part of this is down to territoriality in that the males ultimately are defending the territory, and that’s effectively protecting the females. But of course, what they’re mostly protecting them from is other males. So there’s a ludicrous bit of self-interest. But that’s effectively how it’s operating as a system. But it could just be predatory type. Cheetahs are my go-to example for this. So cheetahs are the weird ones compared to the other cats because females are solitary, but males are social. So brothers will… When, when, you know, if the female has five or six cubs, the brothers will stay together in a group, and then the girls will go off on their own.
Dave Hone
And if you’re the only brother or the only survivor, you will usually hook up with a gang of other males. So cheetahs are pack hunters if you’re male, and a solitary hunter if you’re female. So it’s not about territory defense or occupation for them. It’s about prey type.
And if you’re the only brother or the only survivor, you will usually hook up with a gang of other males. So cheetahs are pack hunters if you’re male, and a solitary hunter if you’re female. So it’s not about territory defense or occupation for them. It’s about prey type.
Lex Fridman
Is it possible to know the sex of a T-Rex or any of the other dinosaurs? Like, what can paleontology show us?
Is it possible to know the sex of a T-Rex or any of the other dinosaurs? Like, what can paleontology show us?
Dave Hone
So in theory, yes. In practice, it’s way more complicated. So unless you get very lucky, we have a handful of specimens that still have eggs inside them, instant giveaway. But this is like two or three. What you can look for is both reptiles and birds have a thing called medullary bone, and when you’re laying eggs and you need a lot of calcium very quickly because of that, the eggshell goes on basically like kind of like the last minute during egg development. So you need a lot of calcium very quickly. So during the laying season, these animals grow this really weird kind of bone texture on big things like the femur and the humerus, like really big bones in the body. And that’s…
So in theory, yes. In practice, it’s way more complicated. So unless you get very lucky, we have a handful of specimens that still have eggs inside them, instant giveaway. But this is like two or three. What you can look for is both reptiles and birds have a thing called medullary bone, and when you’re laying eggs and you need a lot of calcium very quickly because of that, the eggshell goes on basically like kind of like the last minute during egg development. So you need a lot of calcium very quickly. So during the laying season, these animals grow this really weird kind of bone texture on big things like the femur and the humerus, like really big bones in the body. And that’s…
Dave Hone
It’s got a weird texture ’cause it’s full of blood vessels, and it’s full of blood vessels so that you can basically apply a lot of blood supply to it quickly, suck up some of the calcium from that bone, take it through the system, put it on the eggs, lay your eggs. We can find that. So if you have a dinosaur bone and it’s the right kind of thing, so you can’t do it on like a finger or a claw or a bit of rib, but nice big bone, you could cut a chunk of that out, grind it down to the point that it’s virtually transparent, fraction of a millimeter thick, put it under a microscope and have a look. And if you see the right bone texture, that’s… There are some exceptions, but that’s very probably medullary bone, and you have yourself a female.
It’s got a weird texture ’cause it’s full of blood vessels, and it’s full of blood vessels so that you can basically apply a lot of blood supply to it quickly, suck up some of the calcium from that bone, take it through the system, put it on the eggs, lay your eggs. We can find that. So if you have a dinosaur bone and it’s the right kind of thing, so you can’t do it on like a finger or a claw or a bit of rib, but nice big bone, you could cut a chunk of that out, grind it down to the point that it’s virtually transparent, fraction of a millimeter thick, put it under a microscope and have a look. And if you see the right bone texture, that’s… There are some exceptions, but that’s very probably medullary bone, and you have yourself a female.
Dave Hone
So the instant assumption is, okay, so you can tell female from male. No, we can tell laying female from everything else. So males won’t have medullary bone. Young females won’t have them. Females outside of the breeding season won’t have it. Females inside the breeding season, but maybe they’ve been really sick this year, don’t have it. Or they laid their eggs early and now they don’t need it anymore, won’t have it. So occasionally, if you cut up a bone, which of course we try not to do that much, you can get the signal of medullary bone and infer that you have a female in the breeding season.
So the instant assumption is, okay, so you can tell female from male. No, we can tell laying female from everything else. So males won’t have medullary bone. Young females won’t have them. Females outside of the breeding season won’t have it. Females inside the breeding season, but maybe they’ve been really sick this year, don’t have it. Or they laid their eggs early and now they don’t need it anymore, won’t have it. So occasionally, if you cut up a bone, which of course we try not to do that much, you can get the signal of medullary bone and infer that you have a female in the breeding season.
Lex Fridman
But so there’s no like large bone structure differences?
But so there’s no like large bone structure differences?
Dave Hone
Well, maybe there is, but we haven’t seen it. You look at things like kudu or blackbuck and all kinds of antelope or even most deer, and the males have horns or antlers and the females don’t. And then you look at something like Triceratops and all the ceratopsians. There’s a big clade of… Oh, must be 40 species by now. And every single one of them has the frill and has some kind of horn somewhere. You don’t have the hornless ones or the frill-less ones in the way that we do with a lot of these.
Well, maybe there is, but we haven’t seen it. You look at things like kudu or blackbuck and all kinds of antelope or even most deer, and the males have horns or antlers and the females don’t. And then you look at something like Triceratops and all the ceratopsians. There’s a big clade of… Oh, must be 40 species by now. And every single one of them has the frill and has some kind of horn somewhere. You don’t have the hornless ones or the frill-less ones in the way that we do with a lot of these.
Lex Fridman
I’m, I’m trying to figure out ho- is there… How many of the species is it obvious that there’s like, like pelvis differences, all that kind of stuff?
I’m, I’m trying to figure out ho- is there… How many of the species is it obvious that there’s like, like pelvis differences, all that kind of stuff?
Dave Hone
So, so pelvis differences works on like humans and apes and maybe a couple of other mammals, but it’s mostly not very good because we are… It’s because we give birth to such a gigantic baby with a gigantic head compared to our sizes that women have different pelvises to men.
So, so pelvis differences works on like humans and apes and maybe a couple of other mammals, but it’s mostly not very good because we are… It’s because we give birth to such a gigantic baby with a gigantic head compared to our sizes that women have different pelvises to men.
Lex Fridman
And then there’s size differences, like the skull is not as reliable as the pelvis.
And then there’s size differences, like the skull is not as reliable as the pelvis.
Dave Hone
It’s, it’s not. And then again, you just need to look at, you know, humans are always slightly dodgy with this because of, you know, our evolutionary and cultural history. But like, you know, there are population differences. You know, you… There are maned female lions in places. There are maneless male lions in places. Reindeer, female reindeer have antlers in winter. So Rudolph was a girl because every illustration of Santa and his reindeer ever, they all have antlers and that’s, that’s a female reindeer, not a male if it’s winter.
It’s, it’s not. And then again, you just need to look at, you know, humans are always slightly dodgy with this because of, you know, our evolutionary and cultural history. But like, you know, there are population differences. You know, you… There are maned female lions in places. There are maneless male lions in places. Reindeer, female reindeer have antlers in winter. So Rudolph was a girl because every illustration of Santa and his reindeer ever, they all have antlers and that’s, that’s a female reindeer, not a male if it’s winter.
Lex Fridman
So basically, we don’t know much about the dating and the sex lives of T-Rexes.
So basically, we don’t know much about the dating and the sex lives of T-Rexes.
Dave Hone
Well, not much, but you can make some inferences. So, for example, all tyrannosaurs have at least some kind of crest on the head. The early ones have like this midline crest, it, it really doesn’t work on a human. They have like a midline crest running along the top of the nose that sticks up. The later ones largely don’t, but they do have this weird armored structure along those fused nasals and then they have little horns over the eyes. Those, as far as we can tell, don’t really have any kind of obvious mechanical function, and loads, like outside of the feathered dinosaurs, the vast majority of carnivorous dinosaurs have some kind of crestal display feature on the head.
Well, not much, but you can make some inferences. So, for example, all tyrannosaurs have at least some kind of crest on the head. The early ones have like this midline crest, it, it really doesn’t work on a human. They have like a midline crest running along the top of the nose that sticks up. The later ones largely don’t, but they do have this weird armored structure along those fused nasals and then they have little horns over the eyes. Those, as far as we can tell, don’t really have any kind of obvious mechanical function, and loads, like outside of the feathered dinosaurs, the vast majority of carnivorous dinosaurs have some kind of crestal display feature on the head.
Lex Fridman
When you say “display feature,” meaning for sex appeal, to attract mates?
When you say “display feature,” meaning for sex appeal, to attract mates?
Dave Hone
Or something like that. So I’ve always favored the term socio-sexual selection to cover both sexual display and sexual dominance and communication, but also social ones, because those two things are hard to tell apart. Female lions find males with darker manes sexier, but male lions find males with darker manes more intimidating. So one of them is sex, but one of them is social.
Or something like that. So I’ve always favored the term socio-sexual selection to cover both sexual display and sexual dominance and communication, but also social ones, because those two things are hard to tell apart. Female lions find males with darker manes sexier, but male lions find males with darker manes more intimidating. So one of them is sex, but one of them is social.
Lex Fridman
Nice.
Nice.
Dave Hone
And then-
And then-
Lex Fridman
They’re… I mean, I guess it goes hand-in-hand, sure. Yeah.
They’re… I mean, I guess it goes hand-in-hand, sure. Yeah.
Dave Hone
It can, but then you get things like the other one I go for is black swans, these beautiful Australian birds. They have these really weird curly feathers on their wings. And males and females both have them, and males prefer females with curlier feathers, and females prefer males with curlier feathers. There’s an obvious sexual link, but then females fight too. Females fight over the best nesting spots, and the females with the curliest feathers tend to win those fights.
It can, but then you get things like the other one I go for is black swans, these beautiful Australian birds. They have these really weird curly feathers on their wings. And males and females both have them, and males prefer females with curlier feathers, and females prefer males with curlier feathers. There’s an obvious sexual link, but then females fight too. Females fight over the best nesting spots, and the females with the curliest feathers tend to win those fights.
Lex Fridman
How does that make sense?
How does that make sense?
Dave Hone
This gets into classic sexual selection theory. It’s what’s called an honest signal. You couldn’t have those curly feathers if you weren’t able to support them.
This gets into classic sexual selection theory. It’s what’s called an honest signal. You couldn’t have those curly feathers if you weren’t able to support them.
Lex Fridman
Oh, yeah.
Oh, yeah.
Dave Hone
…because they’re the primary feathers on the wings. And what it actually does is it makes it harder to fly. So you’re basically going, “Look how tough I am. I’ve grown this big, and I can fly and carry on with my giant curly feathers because I’m really tough and I’m in good shape.” And it’s the same with the lion. The reason you get pale lions in the south is because it’s, or close to the equator, because it’s too hot. So there’s the trade-off, because if you have a really black mane, yeah, all the males know you’re great and all the females know you’re super sexy, but you just die of overheating.
…because they’re the primary feathers on the wings. And what it actually does is it makes it harder to fly. So you’re basically going, “Look how tough I am. I’ve grown this big, and I can fly and carry on with my giant curly feathers because I’m really tough and I’m in good shape.” And it’s the same with the lion. The reason you get pale lions in the south is because it’s, or close to the equator, because it’s too hot. So there’s the trade-off, because if you have a really black mane, yeah, all the males know you’re great and all the females know you’re super sexy, but you just die of overheating.
Dave Hone
The trade-off is if the heat’s going to kill you, you’re probably better off being a bit paler and surviving in order to reproduce than you are being jet black but just dying instantly as soon as it gets hot.
The trade-off is if the heat’s going to kill you, you’re probably better off being a bit paler and surviving in order to reproduce than you are being jet black but just dying instantly as soon as it gets hot.
Lex Fridman
So there’s trade-offs there. Okay.
So there’s trade-offs there. Okay.
Dave Hone
Yeah, and that’s probably what’s happening with the theropods. All the little crests and horns, Ceratosaurus, Dilophosaurus, tyrannosaurs, allosaurs have big crests over the eyes, and all kinds of others. I’ve written about this; I think this is the trade-off. You’re going for the sexiest look… …And the sexiest look is the biggest horns or the biggest spikes and whatever’s on the head, probably also then with the brightest colors and the most display patterns, but also this gives you away to your prey. If you’re trying to hide or you’re trying to sneak up on something, being brightly colored or having stripes or all this extra stuff on your head, you get spotted.
Yeah, and that’s probably what’s happening with the theropods. All the little crests and horns, Ceratosaurus, Dilophosaurus, tyrannosaurs, allosaurs have big crests over the eyes, and all kinds of others. I’ve written about this; I think this is the trade-off. You’re going for the sexiest look… …And the sexiest look is the biggest horns or the biggest spikes and whatever’s on the head, probably also then with the brightest colors and the most display patterns, but also this gives you away to your prey. If you’re trying to hide or you’re trying to sneak up on something, being brightly colored or having stripes or all this extra stuff on your head, you get spotted.
Dave Hone
But then that’s the trade-off, if my horns are this big and this red and yellow, and I can still, whoop, I can still run those guys down and hunt them and kill them and eat them.
But then that’s the trade-off, if my horns are this big and this red and yellow, and I can still, whoop, I can still run those guys down and hunt them and kill them and eat them.
Lex Fridman
Yeah.
Yeah.
Dave Hone
…then look how great I must be. Whereas that little guy, he’s only got weedy little crests, and they’re really dark because he’s so bad at catching stuff he doesn’t have the extra energy to grow big crests. And so, and that’s why, but when you’re a herbivore, you don’t have that pressure, particularly something like Protoceratops, but somebody like Triceratops and these guys, they’re living in big groups. You can’t hide from a predator when you’re a group of 20 animals that are 10 tons each. So who cares? You just grow the biggest signal you can possibly grow, and lo and behold, they have giant frills and giant horns.
…then look how great I must be. Whereas that little guy, he’s only got weedy little crests, and they’re really dark because he’s so bad at catching stuff he doesn’t have the extra energy to grow big crests. And so, and that’s why, but when you’re a herbivore, you don’t have that pressure, particularly something like Protoceratops, but somebody like Triceratops and these guys, they’re living in big groups. You can’t hide from a predator when you’re a group of 20 animals that are 10 tons each. So who cares? You just grow the biggest signal you can possibly grow, and lo and behold, they have giant frills and giant horns.
Lex Fridman
What can you say about beauty in evolution? So something that’s maybe you can educate me, but something that’s not quite an honest signal, that’s just pure beauty, like peacock feathers?
What can you say about beauty in evolution? So something that’s maybe you can educate me, but something that’s not quite an honest signal, that’s just pure beauty, like peacock feathers?
Dave Hone
So there are things which we think operate closer to that. These are the two classic ideas of sexual selection, and both are probably true to certain degrees in various different species. One is the honest signal or the handicap hypothesis, because you’re holding yourself back whilst proving you can still do it. I ran the marathon, you know, carrying a couple of weights, you’re obviously stronger than the guy who ran the marathon without. And so that’s why it’s an honest signal and it’s why it’s a handicap. But the other one is what’s called the “sexy sons hypothesis,” and the idea is a female might just find a male attractive for no other reason than random.
So there are things which we think operate closer to that. These are the two classic ideas of sexual selection, and both are probably true to certain degrees in various different species. One is the honest signal or the handicap hypothesis, because you’re holding yourself back whilst proving you can still do it. I ran the marathon, you know, carrying a couple of weights, you’re obviously stronger than the guy who ran the marathon without. And so that’s why it’s an honest signal and it’s why it’s a handicap. But the other one is what’s called the “sexy sons hypothesis,” and the idea is a female might just find a male attractive for no other reason than random.
Dave Hone
There is some component of her brain or whatever it may be, that just looks cool. And you can actually get this as a human. Like, forget human beauty, you can look at a bottle and go, “That bottle’s kind of nice, and that bottle’s kind of ugly.”
There is some component of her brain or whatever it may be, that just looks cool. And you can actually get this as a human. Like, forget human beauty, you can look at a bottle and go, “That bottle’s kind of nice, and that bottle’s kind of ugly.”
Lex Fridman
Where do you put, like, birds are interesting with this. Where do you put peacock feathers?
Where do you put, like, birds are interesting with this. Where do you put peacock feathers?
Dave Hone
So they’re probably more handicap hypothesis because the colors that go into them and the sheer size and shape…
So they’re probably more handicap hypothesis because the colors that go into them and the sheer size and shape…
Lex Fridman
Oh, I see. Yeah, yeah, yeah.
Oh, I see. Yeah, yeah, yeah.
Dave Hone
…and these things basically can’t fly. They’re really vulnerable to predators.
…and these things basically can’t fly. They’re really vulnerable to predators.
Lex Fridman
Can the handicap hypothesis explain just how beautiful peacock feathers get?
Can the handicap hypothesis explain just how beautiful peacock feathers get?
Dave Hone
So-
So-
Lex Fridman
Like, ’cause they go extreme with it.
Like, ’cause they go extreme with it.
Dave Hone
So, so probably not entirely. There’s almost certainly randomness going on in there as well, and then the eye spots. We know that eye spots are attractive, are probably encoded in some way. But yeah, so going back to the sexy sons, the idea is females prefer something different for whatever reason, and there might actually be some reasons females prefer things that are different. Different usually means separate and outside, and that usually comes with variation inherently.
So, so probably not entirely. There’s almost certainly randomness going on in there as well, and then the eye spots. We know that eye spots are attractive, are probably encoded in some way. But yeah, so going back to the sexy sons, the idea is females prefer something different for whatever reason, and there might actually be some reasons females prefer things that are different. Different usually means separate and outside, and that usually comes with variation inherently.
Lex Fridman
Oh, so variation is evolutionary turn-on?
Oh, so variation is evolutionary turn-on?
Dave Hone
Yeah, basically.
Yeah, basically.
Lex Fridman
Wouldn’t it? Man, you’re rolling the dice, though, aren’t you?
Wouldn’t it? Man, you’re rolling the dice, though, aren’t you?
Dave Hone
Yeah, well, you, prob-
Yeah, well, you, prob-
Lex Fridman
Right.
Right.
Dave Hone
So, so you’ve, you’ve, you’ve got to remember, again, it’s really easy to look at that sort of thing with a human perspective where at maximum reproductive output, I think the record, there’s some obscure record, it’s something like 66 children, which is probably apocryphal for a Russian woman who had loads of triplets and quads. But, like, humans don’t have many offspring, but most animals lay dozens of eggs or hundreds of eggs or thousands of eggs at a time. So actually-
So, so you’ve, you’ve, you’ve got to remember, again, it’s really easy to look at that sort of thing with a human perspective where at maximum reproductive output, I think the record, there’s some obscure record, it’s something like 66 children, which is probably apocryphal for a Russian woman who had loads of triplets and quads. But, like, humans don’t have many offspring, but most animals lay dozens of eggs or hundreds of eggs or thousands of eggs at a time. So actually-
Lex Fridman
So diversity pays off more there.
So diversity pays off more there.
Dave Hone
So diversity can pay off. We, we think that’s probably a major part of the reason that sex evolved in the first place, is it gives you resistance to changing environment and it gives you resistance to parasites and diseases which often reproduce way faster than you do. You know, bacteria can divide in a few hours. We reproduce every 20 years. That’s quite a difference. If we were all asexual clones and you’re vulnerable to some disease, you’re probably gonna get wiped out. Look at the, you know, Irish potato famine or something like that. So different may be appealing simply because it is different. It’s giving you variation. And there’s at least some evidence for that. There’s swordtails.
So diversity can pay off. We, we think that’s probably a major part of the reason that sex evolved in the first place, is it gives you resistance to changing environment and it gives you resistance to parasites and diseases which often reproduce way faster than you do. You know, bacteria can divide in a few hours. We reproduce every 20 years. That’s quite a difference. If we were all asexual clones and you’re vulnerable to some disease, you’re probably gonna get wiped out. Look at the, you know, Irish potato famine or something like that. So different may be appealing simply because it is different. It’s giving you variation. And there’s at least some evidence for that. There’s swordtails.
Dave Hone
So anyone who keeps little fish, if anyone’s a tropical fish keeper, swordtails are really quite common little tropical fish that you can get in all kinds of aquarium shops, and they’re a very boring fish shape, but the lower lobe of their tail has a big spike on it, and that’s the name. And they’re really close relatives of a group called the mollies which basically don’t have that. And in the wild, these, these are Amazonian fish, they don’t usually encounter each other, but even if you go and get not even the domesticated form ’cause these things have been bred for, you know, decades at this point, you can go and get some wild mollies and give them a wild male swordtail and they think he’s so much better than all the male mollies.
So anyone who keeps little fish, if anyone’s a tropical fish keeper, swordtails are really quite common little tropical fish that you can get in all kinds of aquarium shops, and they’re a very boring fish shape, but the lower lobe of their tail has a big spike on it, and that’s the name. And they’re really close relatives of a group called the mollies which basically don’t have that. And in the wild, these, these are Amazonian fish, they don’t usually encounter each other, but even if you go and get not even the domesticated form ’cause these things have been bred for, you know, decades at this point, you can go and get some wild mollies and give them a wild male swordtail and they think he’s so much better than all the male mollies.
Dave Hone
They will go for that one and they will preferentially mate with that one. We don’t know the exact mechanism, but it appears to be, he looks similar enough that I recognize it as a potential mate, but different enough that this is exciting.
They will go for that one and they will preferentially mate with that one. We don’t know the exact mechanism, but it appears to be, he looks similar enough that I recognize it as a potential mate, but different enough that this is exciting.
Dave Hone
And then this is where the sexy sons kick in because the females are now assuming those animals are successful and they can hybridize, or maybe it’s just a male who just happens to be a little bit blue or a little bit red or whatever it may be. Well, the female offspring, the daughters, are probably going to inherit mother’s preference, “I really like red,” and the males are probably gonna have red in them because their dad had more red. So guess what the next generation does? There’s more red and the females like more red, and you don’t have to come back much further and suddenly all the males are bright red. And that’s closer to beauty than I think almost anything else would be with still a naturalistic explanation.
And then this is where the sexy sons kick in because the females are now assuming those animals are successful and they can hybridize, or maybe it’s just a male who just happens to be a little bit blue or a little bit red or whatever it may be. Well, the female offspring, the daughters, are probably going to inherit mother’s preference, “I really like red,” and the males are probably gonna have red in them because their dad had more red. So guess what the next generation does? There’s more red and the females like more red, and you don’t have to come back much further and suddenly all the males are bright red. And that’s closer to beauty than I think almost anything else would be with still a naturalistic explanation.
Lex Fridman
We kind of started talking about beauty from how much social life-
We kind of started talking about beauty from how much social life-
Dave Hone
Yeah, a T-rex might have.
Yeah, a T-rex might have.
Lex Fridman
…a T-rex might have. So just to kind of take that to a place of what we know and what we don’t know, so can we kind of know something about their social life, where they lived, how they lived?
…a T-rex might have. So just to kind of take that to a place of what we know and what we don’t know, so can we kind of know something about their social life, where they lived, how they lived?
Dave Hone
So the very fact that they have these apparently socio-sexually selected signals, the, the little crest and stuff in the head… So there’s a branch of sexual selection called mutual sexual selection and the black swans are an example of this. The classic sexual selection is yeah, your peacocks and your lions and things like this. Males are bigger and more flamboyant and whatever it is and they’re doing all the competing. But yet mutual sexual selection, and this is really common in a whole bunch of things that people are familiar with but don’t know.
So the very fact that they have these apparently socio-sexually selected signals, the, the little crest and stuff in the head… So there’s a branch of sexual selection called mutual sexual selection and the black swans are an example of this. The classic sexual selection is yeah, your peacocks and your lions and things like this. Males are bigger and more flamboyant and whatever it is and they’re doing all the competing. But yet mutual sexual selection, and this is really common in a whole bunch of things that people are familiar with but don’t know.
Dave Hone
Loads of sea birds, starlings, the common starling that we have in Europe and has been introduced into the US, parrots, various other things, where basically males and females invest similarly in rearing the offspring. And so the idea generally both with handicap and sexy son, but particularly with handicap, is the idea is the males are proving their worth. They’re basically saying, “I’m the biggest, strongest, healthiest, I’ve got the best genes, I should be the father of your offspring.” They go around showing off and then mate with as many females as possible while the females then do all the work and make the nest and look after the chicks and, yeah, or rear them or give birth or whatever it may be, yada, yada, yada.
Loads of sea birds, starlings, the common starling that we have in Europe and has been introduced into the US, parrots, various other things, where basically males and females invest similarly in rearing the offspring. And so the idea generally both with handicap and sexy son, but particularly with handicap, is the idea is the males are proving their worth. They’re basically saying, “I’m the biggest, strongest, healthiest, I’ve got the best genes, I should be the father of your offspring.” They go around showing off and then mate with as many females as possible while the females then do all the work and make the nest and look after the chicks and, yeah, or rear them or give birth or whatever it may be, yada, yada, yada.
Dave Hone
And so the idea with mutual sexual selection is well, what if there’s not much food around? Things like puffins or, you know, penguins in the Arctic where, you know, where the male sits with the egg and the female toddles off, gets food and then comes back two months later or whatever it is. On their own they can’t rear the offspring. They have to have a male investment. Well now, suddenly the male’s now putting loads of effort in, so the male’s now in the same position that a female would be in under the normal conditions. You don’t want to be the sexiest, toughest, biggest male and you can only mate once, all right? There’s, there’s various cheats, but we won’t get into that just yet.
And so the idea with mutual sexual selection is well, what if there’s not much food around? Things like puffins or, you know, penguins in the Arctic where, you know, where the male sits with the egg and the female toddles off, gets food and then comes back two months later or whatever it is. On their own they can’t rear the offspring. They have to have a male investment. Well now, suddenly the male’s now putting loads of effort in, so the male’s now in the same position that a female would be in under the normal conditions. You don’t want to be the sexiest, toughest, biggest male and you can only mate once, all right? There’s, there’s various cheats, but we won’t get into that just yet.
Dave Hone
You’re only going to mate once and you’re going to put all your effort into helping rearing offspring rather than chasing down as many girls as possible. Are you going to go for the biggest, fittest female as well or are you going to go for the small, weedy one that doesn’t look very well? You go for the best one. Well, how do you know that? Well ’cause she’s got a crest as well, and so suddenly you now get mutual ornamentation just like the black swans where the males are checking out the curliest females and the females are checking out the curliest males, and you’ll see they mutually pair up. This is what we see with things like starlings. Males like the brightest females, females like the brightest males, they tend to form pairs.
You’re only going to mate once and you’re going to put all your effort into helping rearing offspring rather than chasing down as many girls as possible. Are you going to go for the biggest, fittest female as well or are you going to go for the small, weedy one that doesn’t look very well? You go for the best one. Well, how do you know that? Well ’cause she’s got a crest as well, and so suddenly you now get mutual ornamentation just like the black swans where the males are checking out the curliest females and the females are checking out the curliest males, and you’ll see they mutually pair up. This is what we see with things like starlings. Males like the brightest females, females like the brightest males, they tend to form pairs.
Dave Hone
The darkest and least bright ones are obviously kind of left with each other at the bottom of the pile. They tend to pair up. But it means that when you’ve got signals in both males and females like every triceratops or every tyrannosaurus, it at least hints that they’re going down this route and that they might cooperate for reproduction.
The darkest and least bright ones are obviously kind of left with each other at the bottom of the pile. They tend to pair up. But it means that when you’ve got signals in both males and females like every triceratops or every tyrannosaurus, it at least hints that they’re going down this route and that they might cooperate for reproduction.
Lex Fridman
Wow. Another like weak signal that tells a powerful story.
Wow. Another like weak signal that tells a powerful story.
Dave Hone
Yeah, and the problem is it’s compromised by lots of things, so that goes back to your earlier question about telling males from females apart. The vast majority of dinosaur species, like 90 plus percent, are known from a single specimen, and a specimen is not necessarily very complete at all. It might be a couple of bones, it might be one bone, it might be a tooth in a couple of cases. The actual number where we’ve got a decent number of real whole skeletons that we can actually compare to each other, less than 10. Probably more like five or six.
Yeah, and the problem is it’s compromised by lots of things, so that goes back to your earlier question about telling males from females apart. The vast majority of dinosaur species, like 90 plus percent, are known from a single specimen, and a specimen is not necessarily very complete at all. It might be a couple of bones, it might be one bone, it might be a tooth in a couple of cases. The actual number where we’ve got a decent number of real whole skeletons that we can actually compare to each other, less than 10. Probably more like five or six.
Lex Fridman
Can I ask you a weird question? If you were to, let’s say, all humans died right now— …press a button, poof, gone, how much of human civilization would you be able to reconstruct from just the skeletons that are in the ground? Like you just start collecting skeletons. There’s a lot of them. There are billions of them. Would you be able to start telling a story, like urban centers?
Can I ask you a weird question? If you were to, let’s say, all humans died right now— …press a button, poof, gone, how much of human civilization would you be able to reconstruct from just the skeletons that are in the ground? Like you just start collecting skeletons. There’s a lot of them. There are billions of them. Would you be able to start telling a story, like urban centers?
Dave Hone
Yeah, probably, because—
Yeah, probably, because—
Lex Fridman
You could probably reconstruct a lot, right?
You could probably reconstruct a lot, right?
Dave Hone
And if nothing else, just the, you know, superlative brain cavity will tell you quite a lot, you know.
And if nothing else, just the, you know, superlative brain cavity will tell you quite a lot, you know.
Lex Fridman
Yeah, the intelligence.
Yeah, the intelligence.
Dave Hone
Must have been very, very smart with— …a brain that big.
Must have been very, very smart with— …a brain that big.
Lex Fridman
You can probably reconstruct some of the behavior, a lot of the behavior, social behavior. A lot of this stuff.
You can probably reconstruct some of the behavior, a lot of the behavior, social behavior. A lot of this stuff.
Dave Hone
And you’re going to see stuff like, you know, it’s the famous one of… I think it was a Neanderthal. There was a famous question of like, “At what point do you think society exists?” And maybe one of the answer was basically this skeleton because it was someone with a properly busted leg and then it fully healed. And it’s like if that person was on their own, just dead, someone had to look after them for months to get that level of healing. You only do that to someone you’re really devoted to and probably a group of people because even one person can’t look after one other person. Right, so that’s your society. And yet you think about the pathology of skeletons in the human race. How many of us have broken a bone?
And you’re going to see stuff like, you know, it’s the famous one of… I think it was a Neanderthal. There was a famous question of like, “At what point do you think society exists?” And maybe one of the answer was basically this skeleton because it was someone with a properly busted leg and then it fully healed. And it’s like if that person was on their own, just dead, someone had to look after them for months to get that level of healing. You only do that to someone you’re really devoted to and probably a group of people because even one person can’t look after one other person. Right, so that’s your society. And yet you think about the pathology of skeletons in the human race. How many of us have broken a bone?
Dave Hone
Most adults have probably broken a couple of bones, even if it’s just a finger or a nose or something. But then you think about what medicine has done, and you would be able to see treatments of complete compound fractures of guys who survived horrific car crashes and treatments of cancer, bone cancers, and stuff like that. You would see that. Well, how is that happening? Either they’re magic, or they’ve got some kind of… in which case they’d probably cure it instantly, or there’s some kind of technology in society supporting that change.
Most adults have probably broken a couple of bones, even if it’s just a finger or a nose or something. But then you think about what medicine has done, and you would be able to see treatments of complete compound fractures of guys who survived horrific car crashes and treatments of cancer, bone cancers, and stuff like that. You would see that. Well, how is that happening? Either they’re magic, or they’ve got some kind of… in which case they’d probably cure it instantly, or there’s some kind of technology in society supporting that change.
Lex Fridman
That just hints at the fact that the evidence collection and the reasoning mechanisms that paleontology and archeology use are really powerful.
That just hints at the fact that the evidence collection and the reasoning mechanisms that paleontology and archeology use are really powerful.
Dave Hone
Yeah, it is.
Yeah, it is.
Lex Fridman
And so it could be very effective even just with a small amount of data. I mean, you could—
And so it could be very effective even just with a small amount of data. I mean, you could—
Dave Hone
But it’s the right amount of data. That’s the thing. We can find dozens of skeletons that we can’t do very much with, and then the right one that… you know, things like stomach contents, that’s a super powerful bit of data, or bite marks, but it doesn’t turn up that often. So it’s not like you can get it off every skeleton. And that’s the thing, it’s the pool of data, and I think that’s what people miss. We as paleontologists get caught up on single superlative specimens and then try and treat them as a silver bullet almost. So Microraptor, I mentioned this before, a little flying dinosaur, crow-sized, or gliding dinosaur, crow-sized thing from China.
But it’s the right amount of data. That’s the thing. We can find dozens of skeletons that we can’t do very much with, and then the right one that… you know, things like stomach contents, that’s a super powerful bit of data, or bite marks, but it doesn’t turn up that often. So it’s not like you can get it off every skeleton. And that’s the thing, it’s the pool of data, and I think that’s what people miss. We as paleontologists get caught up on single superlative specimens and then try and treat them as a silver bullet almost. So Microraptor, I mentioned this before, a little flying dinosaur, crow-sized, or gliding dinosaur, crow-sized thing from China.
Spinosaurus
Dave Hone
We’ve got, oh, at least a dozen good specimens of it by now and multiple ones with stomach contents. There’s one I’ve described with a little mammal foot inside it, there’s one with a bird inside it, there’s one with a lizard inside it, and there’s one with a fish inside it. On their own, and this happened for at least two of the papers describing these things, it’s like, “It ate fish. These are fish-eating animals.” No, that one ate one fish once. That one ate one bird once, that one ate one mammal once, and that one ate one lizard once. So what have we actually got here? I suspect we’ve got a group of generalists and we just happen to have found them eating different things at different times.
We’ve got, oh, at least a dozen good specimens of it by now and multiple ones with stomach contents. There’s one I’ve described with a little mammal foot inside it, there’s one with a bird inside it, there’s one with a lizard inside it, and there’s one with a fish inside it. On their own, and this happened for at least two of the papers describing these things, it’s like, “It ate fish. These are fish-eating animals.” No, that one ate one fish once. That one ate one bird once, that one ate one mammal once, and that one ate one lizard once. So what have we actually got here? I suspect we’ve got a group of generalists and we just happen to have found them eating different things at different times.
Dave Hone
But equally, it’s also possible, at least, that, yeah, this is one of these things and it had learned to eat fish when the others hadn’t, and actually this was mostly fish eaters and the others ate whatever they could get. Maybe one caught a bird up a tree in a nest, maybe one found it dead on the ground. You don’t really know what one of these things on its own is fascinating, but potentially misleading.
But equally, it’s also possible, at least, that, yeah, this is one of these things and it had learned to eat fish when the others hadn’t, and actually this was mostly fish eaters and the others ate whatever they could get. Maybe one caught a bird up a tree in a nest, maybe one found it dead on the ground. You don’t really know what one of these things on its own is fascinating, but potentially misleading.
Lex Fridman
Well, the way you’re describing it now, it seems like, yes, it’s potentially misleading, but there’s… in your whole way of being and the way you’ve been talking about this stuff, I can see that it’s not just the direct evidence you’re mentioning. It’s like, it’s a bunch of intuitions you build up. It’s like you’re stitching together a bunch of little things. It’s the Sherlock Holmes thing. Not just the clearly this one piece of evidence. It’s like, “Okay, what do I know about the general other dinosaurs that are on the Earth, what the different animals?” “How animals usually behave about this period, about the environment?” And all of that comes together and then… …Figuring out which is true.
Well, the way you’re describing it now, it seems like, yes, it’s potentially misleading, but there’s… in your whole way of being and the way you’ve been talking about this stuff, I can see that it’s not just the direct evidence you’re mentioning. It’s like, it’s a bunch of intuitions you build up. It’s like you’re stitching together a bunch of little things. It’s the Sherlock Holmes thing. Not just the clearly this one piece of evidence. It’s like, “Okay, what do I know about the general other dinosaurs that are on the Earth, what the different animals?” “How animals usually behave about this period, about the environment?” And all of that comes together and then… …Figuring out which is true.
Dave Hone
And that’s so one thing I’ve definitely written about is, yeah, the independent lines of evidence. Can you get stuff that is as far as possible truly independent from the other data and does it give you the same answer? And then when it does…
And that’s so one thing I’ve definitely written about is, yeah, the independent lines of evidence. Can you get stuff that is as far as possible truly independent from the other data and does it give you the same answer? And then when it does…
Lex Fridman
That’s powerful.
That’s powerful.
Dave Hone
…that’s incredibly powerful. So Spinosaurus or the spinosaurs as a whole is my go-to example for this are the guys with famous big sail back and the weird crocodile-like head, though some of them look rather different to that, and if you look across all the species and specimens that we have, incredibly fragmentary and very badly known, but they’re all basically associated with… When you look at the gestalt, you see a whole bunch of stuff for these things. So they do have a surprisingly crocodile-like head and crocodile-like teeth compared to every other carnivorous dinosaur, and when you do the mechanical analysis, you see they function in a very similar way.
…that’s incredibly powerful. So Spinosaurus or the spinosaurs as a whole is my go-to example for this are the guys with famous big sail back and the weird crocodile-like head, though some of them look rather different to that, and if you look across all the species and specimens that we have, incredibly fragmentary and very badly known, but they’re all basically associated with… When you look at the gestalt, you see a whole bunch of stuff for these things. So they do have a surprisingly crocodile-like head and crocodile-like teeth compared to every other carnivorous dinosaur, and when you do the mechanical analysis, you see they function in a very similar way.
Dave Hone
And indeed, teeth, here’s a spinosaur tooth with very nearly circular cross section, really distinctive, similar to crocodiles, similar to dolphins, similar to fish-eating fish, so points to fish. Crocodile-like head, points to fish. Crocs eat other stuff too, but still. They’re usually found in or near aquatic systems now. Fossils in general tend to turn up in aquatic systems because you’ve got to be buried to become a fossil, so water association is common, but even so that’s true. They turn up in places where lots of other dinosaurs don’t tend to turn up, including carnivores, which suggests they’re eating something else.
And indeed, teeth, here’s a spinosaur tooth with very nearly circular cross section, really distinctive, similar to crocodiles, similar to dolphins, similar to fish-eating fish, so points to fish. Crocodile-like head, points to fish. Crocs eat other stuff too, but still. They’re usually found in or near aquatic systems now. Fossils in general tend to turn up in aquatic systems because you’ve got to be buried to become a fossil, so water association is common, but even so that’s true. They turn up in places where lots of other dinosaurs don’t tend to turn up, including carnivores, which suggests they’re eating something else.
Dave Hone
If you look at the isotopic signature of the teeth, often it correlates with crocodiles, fish, turtles, and stuff that lives in water, and doesn’t correlate well with other land-living dinosaurs that lived in the same time and same place. So you put all of that together, and it’s really hard to argue… Oh, in addition to the tiny detail of Baryonyx, the British one was found with fish scales inside its chest cavity. So you put all of that together, and yeah, I’m not saying it only ate fish. I’m sure it ate big shrimp and turtles. And we know they were preying on terrestrial dinosaurs and pterosaurs because, again, stomach contents and teeth and stuff.
If you look at the isotopic signature of the teeth, often it correlates with crocodiles, fish, turtles, and stuff that lives in water, and doesn’t correlate well with other land-living dinosaurs that lived in the same time and same place. So you put all of that together, and it’s really hard to argue… Oh, in addition to the tiny detail of Baryonyx, the British one was found with fish scales inside its chest cavity. So you put all of that together, and yeah, I’m not saying it only ate fish. I’m sure it ate big shrimp and turtles. And we know they were preying on terrestrial dinosaurs and pterosaurs because, again, stomach contents and teeth and stuff.
Dave Hone
But fundamentally, this is an animal or a group of animals doing something different to the other carnivorous dinosaurs, and it’s probably linked to water, and it’s probably linked to fish as a predominant way of living.
But fundamentally, this is an animal or a group of animals doing something different to the other carnivorous dinosaurs, and it’s probably linked to water, and it’s probably linked to fish as a predominant way of living.
Lex Fridman
We should mention that you’re working on a book o- out in early 2026?
We should mention that you’re working on a book o- out in early 2026?
Dave Hone
So in the UK it will be out in November. In North America, January or February 2026.
So in the UK it will be out in November. In North America, January or February 2026.
Lex Fridman
It’s called Spinosaur Tales: The Biology and Ecology of the Spinosaurus.
It’s called Spinosaur Tales: The Biology and Ecology of the Spinosaurus.
Dave Hone
Written with Mark Witton, who did that picture.
Written with Mark Witton, who did that picture.
Lex Fridman
It’s a beautiful creature.
It’s a beautiful creature.
Dave Hone
Which I think is in there. He, Mark’s done a ton of new artwork. He helped write the book, but he’s also the artist.
Which I think is in there. He, Mark’s done a ton of new artwork. He helped write the book, but he’s also the artist.
Lex Fridman
I mean, can you describe a little bit more about this creature? There’s a bunch of stuff like what you just mentioned. There’s some debate. Is it, is it… To what degree is it aquatic? So what, what…
I mean, can you describe a little bit more about this creature? There’s a bunch of stuff like what you just mentioned. There’s some debate. Is it, is it… To what degree is it aquatic? So what, what…
Dave Hone
Not very, is my take.
Not very, is my take.
Lex Fridman
So, does it live in the water? Does it…
So, does it live in the water? Does it…
Dave Hone
Yeah. So I think it’s basically a big wader. It’s a poor analogy, but it’s a very weird, giant stork.
Yeah. So I think it’s basically a big wader. It’s a poor analogy, but it’s a very weird, giant stork.
Lex Fridman
Oh, got it.
Oh, got it.
Dave Hone
Or heron.
Or heron.
Lex Fridman
Was giant.
Was giant.
Dave Hone
Yeah. So potentially bigger than T-Rex, linearly, not in mass. Again, really quite narrow chest versus that T-Rex barrel. But potentially 15 meters long, so bigger than any T-Rex we’ve found, at least in terms of length.
Yeah. So potentially bigger than T-Rex, linearly, not in mass. Again, really quite narrow chest versus that T-Rex barrel. But potentially 15 meters long, so bigger than any T-Rex we’ve found, at least in terms of length.
Lex Fridman
Can you describe what it looks like? I mean, there are some iconic features to it, right?
Can you describe what it looks like? I mean, there are some iconic features to it, right?
Dave Hone
Yeah. So this really quite long head with a kind of wavy jawline. Animals have… You know, most carnivores have straight jaws. This one has a somewhat wiggly jawline. It really narrows at the front and then opens up again into a little, it’s called a rosette. So you’ve got a little semicircle, and then a dip, and then the jaws go back, and then the teeth line waves up and down. These really conical teeth, which doesn’t sound very exciting, but it makes them different to every other carnivorous dinosaur. No other thing has a conical tooth, which is a classic fish thing, or at least biting hold of something that wriggles. The nostrils are not at the tip of the nose. They’re pushed back, at least somewhat.
Yeah. So this really quite long head with a kind of wavy jawline. Animals have… You know, most carnivores have straight jaws. This one has a somewhat wiggly jawline. It really narrows at the front and then opens up again into a little, it’s called a rosette. So you’ve got a little semicircle, and then a dip, and then the jaws go back, and then the teeth line waves up and down. These really conical teeth, which doesn’t sound very exciting, but it makes them different to every other carnivorous dinosaur. No other thing has a conical tooth, which is a classic fish thing, or at least biting hold of something that wriggles. The nostrils are not at the tip of the nose. They’re pushed back, at least somewhat.
Dave Hone
It has a bunch of crests on the head. It’s got quite a long neck. Spinosaurus and at least a couple of the other closest relatives to it, a thing called Ichthyovenator from… I can’t remember if it’s Thailand or Laos. I think it’s Laos. Has this giant elongated bit to the top of the vertebrae, and so it gives it this giant sail along the back. Spinosaurus, at least, possibly Ichthyovenator, probably not any of the others, then has this weird, thin, newt-like expanse to the top of the tail, giving it a kind of like a giant oar paddle appearance. Mostly they have very large arms with giant claws on the hands. And Spinosaurus, at least, appears to have really quite short legs, but the others don’t. But again…
It has a bunch of crests on the head. It’s got quite a long neck. Spinosaurus and at least a couple of the other closest relatives to it, a thing called Ichthyovenator from… I can’t remember if it’s Thailand or Laos. I think it’s Laos. Has this giant elongated bit to the top of the vertebrae, and so it gives it this giant sail along the back. Spinosaurus, at least, possibly Ichthyovenator, probably not any of the others, then has this weird, thin, newt-like expanse to the top of the tail, giving it a kind of like a giant oar paddle appearance. Mostly they have very large arms with giant claws on the hands. And Spinosaurus, at least, appears to have really quite short legs, but the others don’t. But again…
Dave Hone
So Spinosaurus is totally iconic, but if you look at something like Baryonyx from the UK or Suchomimus from Niger, it’s still got the same head, it’s still got the same neck, it’s still got the same arms, but it doesn’t have this sail, and it doesn’t have this tail, and it probably doesn’t have short legs. So Spinosaurus is a super weird and exaggerated version of what was already a kind of super weird group of theropods. So Spinosaurus is properly strange. And then, as you kind of hinted at, super controversial as well, because various papers have claimed it’s a diver or a really good swimmer, and I think the evidence for that is very weak at best.
So Spinosaurus is totally iconic, but if you look at something like Baryonyx from the UK or Suchomimus from Niger, it’s still got the same head, it’s still got the same neck, it’s still got the same arms, but it doesn’t have this sail, and it doesn’t have this tail, and it probably doesn’t have short legs. So Spinosaurus is a super weird and exaggerated version of what was already a kind of super weird group of theropods. So Spinosaurus is properly strange. And then, as you kind of hinted at, super controversial as well, because various papers have claimed it’s a diver or a really good swimmer, and I think the evidence for that is very weak at best.
Lex Fridman
So your book is going to be… You’re going to start some shit with your book. It’s going to be all controversial.
So your book is going to be… You’re going to start some shit with your book. It’s going to be all controversial.
Dave Hone
I think… I think I already have, to be honest. I’ve written three major papers, and one in particular with my colleague, Tom Holt, where we frankly savaged the idea that it’s a good swimmer. And then…
I think… I think I already have, to be honest. I’ve written three major papers, and one in particular with my colleague, Tom Holt, where we frankly savaged the idea that it’s a good swimmer. And then…
Lex Fridman
Oh.
Oh.
Dave Hone
…other people have since, including actually some of the authors who were on the original paper claiming it did swim well, have now effectively reversed their position and said it didn’t.
…other people have since, including actually some of the authors who were on the original paper claiming it did swim well, have now effectively reversed their position and said it didn’t.
Lex Fridman
So the Jurassic Park 3 fight between the two— …who’s famous. In a real life encounter, who wins?
So the Jurassic Park 3 fight between the two— …who’s famous. In a real life encounter, who wins?
Dave Hone
So probably still T-Rex. I mean, the Jurassic Park Spinosaurus was pretty good for its time because some of the stuff that I’ve just talked about, particularly… The short legs were suggested way back in 1910, 1912, but it was really uncertain. Now it appears to be more likely the case than not. The tail was unknown at this point, so it was just given a very generic tail. But the crocodile-like head is pretty good. The neck’s a bit short. The sail is a bit too… It’s almost just like a semicircle stuck on the back, and it’s a bit more complicated than that. But personally, I’m quite a big fan of the Jurassic Park 3 Spinosaurus. I think for its era, it’s really quite good. It is massive. So there is this…
So probably still T-Rex. I mean, the Jurassic Park Spinosaurus was pretty good for its time because some of the stuff that I’ve just talked about, particularly… The short legs were suggested way back in 1910, 1912, but it was really uncertain. Now it appears to be more likely the case than not. The tail was unknown at this point, so it was just given a very generic tail. But the crocodile-like head is pretty good. The neck’s a bit short. The sail is a bit too… It’s almost just like a semicircle stuck on the back, and it’s a bit more complicated than that. But personally, I’m quite a big fan of the Jurassic Park 3 Spinosaurus. I think for its era, it’s really quite good. It is massive. So there is this…
Dave Hone
They’re from, I’m going to say Morocco, because Spinosaurus is found throughout North Africa, Morocco, Algeria, Egypt. There’s a massive pair of jaws or snout that’s in a collection in Milan that’s absolutely outsized. It’s an absolute giant. And that points to a truly monumentally sized Spinosaurus, which is where all these upper estimates of 15-plus meters come from, is just this one set of jaws. But yeah, it’s about right, but it’s just a bit too muscly and a bit too bulky. But in gross appearance, it’s pretty good.
They’re from, I’m going to say Morocco, because Spinosaurus is found throughout North Africa, Morocco, Algeria, Egypt. There’s a massive pair of jaws or snout that’s in a collection in Milan that’s absolutely outsized. It’s an absolute giant. And that points to a truly monumentally sized Spinosaurus, which is where all these upper estimates of 15-plus meters come from, is just this one set of jaws. But yeah, it’s about right, but it’s just a bit too muscly and a bit too bulky. But in gross appearance, it’s pretty good.
Lex Fridman
Does it have a chance against a T-Rex?
Does it have a chance against a T-Rex?
Dave Hone
No. Because it’s got this unbelievably long, thin jaw, which whilst much stronger than something like Baryonyx, is fundamentally not that strong. The jaws are very long and thin, and then the teeth are… Yeah. They’re big, but they’re not… big, big. You know, it grabs the T-Rex neck and then snaps it. Well, Spinosaurus actually, its neck is really strong going up and down and is very weak rotating or going side to side. So it’s got the weakest possible neck to rotate and snap the T-Rex, and then T-Rex has got the strongest neck of anything. So you’ve got the weakest jaw with the weakest spin versus the strongest neck. So no, I don’t buy it.
No. Because it’s got this unbelievably long, thin jaw, which whilst much stronger than something like Baryonyx, is fundamentally not that strong. The jaws are very long and thin, and then the teeth are… Yeah. They’re big, but they’re not… big, big. You know, it grabs the T-Rex neck and then snaps it. Well, Spinosaurus actually, its neck is really strong going up and down and is very weak rotating or going side to side. So it’s got the weakest possible neck to rotate and snap the T-Rex, and then T-Rex has got the strongest neck of anything. So you’ve got the weakest jaw with the weakest spin versus the strongest neck. So no, I don’t buy it.
What Jurassic Park got right
Lex Fridman
So that brings it back to the topic we touched on a little bit. What are … You’ve mentioned a bunch of the stuff that the Jurassic Park- … series gets wrong. Maybe you could speak to more things, but also, what does it get right?
So that brings it back to the topic we touched on a little bit. What are … You’ve mentioned a bunch of the stuff that the Jurassic Park- … series gets wrong. Maybe you could speak to more things, but also, what does it get right?
Dave Hone
So a lot of very, in some level, generic, but quite important things it gets right. T-Rex is about the right size and shape and is massive, and you don’t actually see it run. You see it power walk. If you watch the Jeep chase again, you’ll see it only ever has one foot on the ground.
So a lot of very, in some level, generic, but quite important things it gets right. T-Rex is about the right size and shape and is massive, and you don’t actually see it run. You see it power walk. If you watch the Jeep chase again, you’ll see it only ever has one foot on the ground.
Dave Hone
The weird thing for me is how much some of them vary. So, like, I’m a big pterosaur guy. I do lots of work on pterosaurs, the flying reptiles. The Pteranodons in Jurassic Park Two: The Lost World, you see them very, very briefly in one of the last shots, and they’re okay, but they’re not great, but it’s clearly a bit of a throwaway shot. The ones in Jurassic Park Three, I think, are mostly excellent. Really, really good. And then the ones in Jurassic World are terrible, like a massive regression. There’s loads and loads of details that are right in JP3 that are completely wrong in Jurassic World, and you’re like, “Why did you take a really good model and make it much, much worse and less accurate?” I don’t understand. And again, it’s fiction. At one level, who cares?
The weird thing for me is how much some of them vary. So, like, I’m a big pterosaur guy. I do lots of work on pterosaurs, the flying reptiles. The Pteranodons in Jurassic Park Two: The Lost World, you see them very, very briefly in one of the last shots, and they’re okay, but they’re not great, but it’s clearly a bit of a throwaway shot. The ones in Jurassic Park Three, I think, are mostly excellent. Really, really good. And then the ones in Jurassic World are terrible, like a massive regression. There’s loads and loads of details that are right in JP3 that are completely wrong in Jurassic World, and you’re like, “Why did you take a really good model and make it much, much worse and less accurate?” I don’t understand. And again, it’s fiction. At one level, who cares?
Dave Hone
But as you said, I don’t think… See, the weird thing for me is, I don’t think it would affect how they’re perceived by the public. Some things I get, like, for example, in Jurassic World, the Pteranodons pick people up with their feet and fly off with them. Pteranodon’s feet don’t work like that. It would never be able to do that, and it would never have the lift. But I get for dramatic purposes, you might want to show that. Okay, fine. This is your big sequence. You need that. But for the rest of the animal, it’s weirdly inaccurate, and I don’t think the public would know, and they might well care if it was much more accurate, and I don’t think it would be any harder to make it accurate than to make it inaccurate.
But as you said, I don’t think… See, the weird thing for me is, I don’t think it would affect how they’re perceived by the public. Some things I get, like, for example, in Jurassic World, the Pteranodons pick people up with their feet and fly off with them. Pteranodon’s feet don’t work like that. It would never be able to do that, and it would never have the lift. But I get for dramatic purposes, you might want to show that. Okay, fine. This is your big sequence. You need that. But for the rest of the animal, it’s weirdly inaccurate, and I don’t think the public would know, and they might well care if it was much more accurate, and I don’t think it would be any harder to make it accurate than to make it inaccurate.
Dave Hone
I’ve spoken to a colleague of mine, who I won’t name, just in case I get him into trouble.
I’ve spoken to a colleague of mine, who I won’t name, just in case I get him into trouble.
Dave Hone
Who’s a big dinosaur nerd, but also a big creature creator and designer, and has done a whole bunch of proper Hollywood A-list movie stuff. And I asked him about this, and I went, “Okay, but is it just easier to take the model that you’ve got and mess around with it than to… if I came in and said, ‘You need to fix that, and you need to fix this, you need to fix this, you need to fix that.'” And he basically went, “No, it’s about the same amount of effort.” It’s not like we don’t have the director or the producer or the lead designer going, “No, I want that arm a bit longer. I want that tail a bit brighter. Can you add a few more bits there? I don’t like those scales.” So he said, “We’re doing that constantly anyway.”
Who’s a big dinosaur nerd, but also a big creature creator and designer, and has done a whole bunch of proper Hollywood A-list movie stuff. And I asked him about this, and I went, “Okay, but is it just easier to take the model that you’ve got and mess around with it than to… if I came in and said, ‘You need to fix that, and you need to fix this, you need to fix this, you need to fix that.'” And he basically went, “No, it’s about the same amount of effort.” It’s not like we don’t have the director or the producer or the lead designer going, “No, I want that arm a bit longer. I want that tail a bit brighter. Can you add a few more bits there? I don’t like those scales.” So he said, “We’re doing that constantly anyway.”
Dave Hone
So doing it to one set of design specs versus another set of design specs is no more hassle. In other words, he said, “It’s no harder to make it accurate than to make it inaccurate.” And it’s like, if that’s truly the case, then just make it right. And then you can claim a level of accuracy and engagement that you can. I mean, it’s interesting. There’s a thing called the Jurassic Foundation. After the first Jurassic Park made an absolute fortune. I think it was Spielberg directly, may have been through Universal, but anyway, they set up the Jurassic Foundation, and it’s a small fund of money for research on dinosaurs and related animals, and academics can apply for it. One of my PhD students got some money from the Jurassic Foundation. Like, that’s great.
So doing it to one set of design specs versus another set of design specs is no more hassle. In other words, he said, “It’s no harder to make it accurate than to make it inaccurate.” And it’s like, if that’s truly the case, then just make it right. And then you can claim a level of accuracy and engagement that you can. I mean, it’s interesting. There’s a thing called the Jurassic Foundation. After the first Jurassic Park made an absolute fortune. I think it was Spielberg directly, may have been through Universal, but anyway, they set up the Jurassic Foundation, and it’s a small fund of money for research on dinosaurs and related animals, and academics can apply for it. One of my PhD students got some money from the Jurassic Foundation. Like, that’s great.
Dave Hone
He didn’t have to do that. He went, “Paleontology’s helped give me this. I’m going to give back a bit.” And after what must be, what, 30 years now, it’s probably funded an awful lot of research, and helped young researchers get a start. So there’s a level of engagement there that I think hasn’t been in subsequent films, which you can kind of see once it goes from being a one-off to being a franchise, and it’s changed hands. I mean, how many different directors has it had now? You know, Spielberg did the first two, and then I don’t know about the next five. It must be two, if not another three more people, and 30 years later, it’s all changing.
He didn’t have to do that. He went, “Paleontology’s helped give me this. I’m going to give back a bit.” And after what must be, what, 30 years now, it’s probably funded an awful lot of research, and helped young researchers get a start. So there’s a level of engagement there that I think hasn’t been in subsequent films, which you can kind of see once it goes from being a one-off to being a franchise, and it’s changed hands. I mean, how many different directors has it had now? You know, Spielberg did the first two, and then I don’t know about the next five. It must be two, if not another three more people, and 30 years later, it’s all changing.
Lex Fridman
Yeah, but that’s the path of creating a legendary film. The depth of accuracy, and it’s not that difficult to work, but it’s also… It does something to the whole artistic creation if you create a culture of where the details really, really matter.
Yeah, but that’s the path of creating a legendary film. The depth of accuracy, and it’s not that difficult to work, but it’s also… It does something to the whole artistic creation if you create a culture of where the details really, really matter.
Dave Hone
Matter. Yeah, and again, there’s some oddities, so like, Gallimimus. I mentioned it earlier, so one of the ornithomimosaurs. The model for Gallimimus in Jurassic World is nearly identical to that from Jurassic Park. One of the differences which you can barely see on film, but I know this is true because I found it in a Jurassic World kid’s book when it came out, is a close-up of the head with an arrow to the teeth. Gallimimus doesn’t have teeth. It’s got a beak. So someone has taken the original model and actively spent time adding teeth to an animal that didn’t have them. I would understand it.
Matter. Yeah, and again, there’s some oddities, so like, Gallimimus. I mentioned it earlier, so one of the ornithomimosaurs. The model for Gallimimus in Jurassic World is nearly identical to that from Jurassic Park. One of the differences which you can barely see on film, but I know this is true because I found it in a Jurassic World kid’s book when it came out, is a close-up of the head with an arrow to the teeth. Gallimimus doesn’t have teeth. It’s got a beak. So someone has taken the original model and actively spent time adding teeth to an animal that didn’t have them. I would understand it.
Dave Hone
I’m not saying I agree with it, but I’d understand if it was a rule of cool, and like, “Yeah, but it would look so much better with all these gnarly big teeth and whatever.” And it’s like, you can’t even see it in the final thing. They’ve got tiny little heads. In the film, all they do is run past the camera briefly. It’s not like they’re a big carnivore and they’re engaged in one of the big battle. Like, why? Why? It’s not like… You can barely even see them.
I’m not saying I agree with it, but I’d understand if it was a rule of cool, and like, “Yeah, but it would look so much better with all these gnarly big teeth and whatever.” And it’s like, you can’t even see it in the final thing. They’ve got tiny little heads. In the film, all they do is run past the camera briefly. It’s not like they’re a big carnivore and they’re engaged in one of the big battle. Like, why? Why? It’s not like… You can barely even see them.
Lex Fridman
Well, yeah. A- again, just to linger on it. There is a lot of value to authenticity in all walks of life and one of them is- Accuracy. When you’re talking about dinosaurs, it’s so valuable and so worthy, and it’s respectable for the long life of a film, to be accurate. I just wish, I hope they do that. There’s certain directors that really dogmatically push that. Alex Garland comes to mind. You know, he, whenever he integrates quantum computing or AI into a film…
Well, yeah. A- again, just to linger on it. There is a lot of value to authenticity in all walks of life and one of them is- Accuracy. When you’re talking about dinosaurs, it’s so valuable and so worthy, and it’s respectable for the long life of a film, to be accurate. I just wish, I hope they do that. There’s certain directors that really dogmatically push that. Alex Garland comes to mind. You know, he, whenever he integrates quantum computing or AI into a film…
Dave Hone
Mm-hmm. Nolan with the black hole in Interstellar. Ended up publishing a paper on the calculation to visualize that.
Mm-hmm. Nolan with the black hole in Interstellar. Ended up publishing a paper on the calculation to visualize that.
Lex Fridman
I mean, that’s legendary. That’s great. That’s really…
I mean, that’s legendary. That’s great. That’s really…
Dave Hone
Exactly.
Exactly.
Lex Fridman
And you think that has nothing to do with the story, the narrative of the film, but it does. It permeates everything. If you get that black hole right, that… …Everybody else steps up their game and really tells a story in this way that reverberates through time, and it really moves people.
And you think that has nothing to do with the story, the narrative of the film, but it does. It permeates everything. If you get that black hole right, that… …Everybody else steps up their game and really tells a story in this way that reverberates through time, and it really moves people.
Dave Hone
Yeah, I mean, as I say, I wish it was better. The only thing I’d flip it around is a joke I’ve made more than once, but just don’t take it as a documentary. No one watches James Bond and goes, “That’s how international espionage works.” You know, he’s got the laser watch and the exploding car, and he’s like, maybe treat it a bit as fiction. I’ve heard from a friend of mine who worked at the Royal Tyrrell Museum, which I’ve mentioned before, in Alberta, which is an absolutely phenomenal place, and she said after the first one, genuinely, it was not common, but more than once, people were annoyed that they didn’t have the real dinosaurs out back, because they’d seen them, and they knew that the real ones were out there.
Yeah, I mean, as I say, I wish it was better. The only thing I’d flip it around is a joke I’ve made more than once, but just don’t take it as a documentary. No one watches James Bond and goes, “That’s how international espionage works.” You know, he’s got the laser watch and the exploding car, and he’s like, maybe treat it a bit as fiction. I’ve heard from a friend of mine who worked at the Royal Tyrrell Museum, which I’ve mentioned before, in Alberta, which is an absolutely phenomenal place, and she said after the first one, genuinely, it was not common, but more than once, people were annoyed that they didn’t have the real dinosaurs out back, because they’d seen them, and they knew that the real ones were out there.
Dave Hone
Which is a testament to Industrial Light & Magic and Stan Winston, but also…
Which is a testament to Industrial Light & Magic and Stan Winston, but also…
Lex Fridman
Wow.
Wow.
Dave Hone
…slightly horrifying that anyone watched Jurassic Park and literally thought that much. Also, why would you go to a museum? You go to the zoo if it’s alive.
…slightly horrifying that anyone watched Jurassic Park and literally thought that much. Also, why would you go to a museum? You go to the zoo if it’s alive.
Lex Fridman
There you will also meet, what is it, King Kong and Godzilla?
There you will also meet, what is it, King Kong and Godzilla?
Dave Hone
Yeah, yeah.
Yeah, yeah.
T-Rex’s intelligence
Lex Fridman
I don’t think we quite touched on this. I really want to ask you about intelligence. What we know about… …The intelligence of, let’s say, T-Rex. We talked about his big head. What do we know about…
I don’t think we quite touched on this. I really want to ask you about intelligence. What we know about… …The intelligence of, let’s say, T-Rex. We talked about his big head. What do we know about…
Dave Hone
Not much. There’s a T-Rex brain, or at least a very rough cast of part of one.
Not much. There’s a T-Rex brain, or at least a very rough cast of part of one.
Lex Fridman
That’s the actual look of…
That’s the actual look of…
Dave Hone
Yeah, this is… so dinosaurs, in fact, most reptiles — I don’t know if you can see it on the velociraptor, not really, unfortunately. Um…
Yeah, this is… so dinosaurs, in fact, most reptiles — I don’t know if you can see it on the velociraptor, not really, unfortunately. Um…
Lex Fridman
It’s elongated.
It’s elongated.
Dave Hone
Yeah, but it’s more that they have… we are weird in that we have a brain that basically fills the inside of our skull. What most animals have is actually a little kind of sub-skull inside the main skull, which is called the endocast, or endocranium, and the brain is in that. And even then, it’s not, like, full of brain because we’ve packed an awful lot of brain into a limited space, and they then have quite a lot of goo and fat and other stuff around it. But it means for dinosaurs, and then deep reptiles and birds in general, in the old days you could basically cut one open, but now we’ll CT scan through them, you can take an internal mold of the endocranium or the brain case, and then whatever filled that would’ve been the brain and its surrounding tissues.
Yeah, but it’s more that they have… we are weird in that we have a brain that basically fills the inside of our skull. What most animals have is actually a little kind of sub-skull inside the main skull, which is called the endocast, or endocranium, and the brain is in that. And even then, it’s not, like, full of brain because we’ve packed an awful lot of brain into a limited space, and they then have quite a lot of goo and fat and other stuff around it. But it means for dinosaurs, and then deep reptiles and birds in general, in the old days you could basically cut one open, but now we’ll CT scan through them, you can take an internal mold of the endocranium or the brain case, and then whatever filled that would’ve been the brain and its surrounding tissues.
Dave Hone
And that’s how you get something like this. In this case, someone literally cracked open an old skull…
And that’s how you get something like this. In this case, someone literally cracked open an old skull…
Dave Hone
…and basically took an internal mold in the same way that you do an external mold for the skulls. And that tells you quite a lot about certain things. So, for example, they’ve got a bulb at the front, which is the olfactory bulb — brains are very stereotyped, again, ours are super weird — so you have the olfactory bulb at the front and behind that you have the optic bulb or the optic lobe. So roughly how big they are will tell you roughly how much of the brain is devoted to, for example, sight and smell. So if it’s a lot, it’s pretty good. If there’s not much, it’s not very good. That goes quite a long way already. One thing we’ve done in the last few years is you can also get into the, it’s not shown here, it wouldn’t be part of this, but the inner ear.
…and basically took an internal mold in the same way that you do an external mold for the skulls. And that tells you quite a lot about certain things. So, for example, they’ve got a bulb at the front, which is the olfactory bulb — brains are very stereotyped, again, ours are super weird — so you have the olfactory bulb at the front and behind that you have the optic bulb or the optic lobe. So roughly how big they are will tell you roughly how much of the brain is devoted to, for example, sight and smell. So if it’s a lot, it’s pretty good. If there’s not much, it’s not very good. That goes quite a long way already. One thing we’ve done in the last few years is you can also get into the, it’s not shown here, it wouldn’t be part of this, but the inner ear.
Dave Hone
We can CT scan into the structure of the bony inner ear, and from that you can actually get an idea of what frequency of sounds the inner ear was structured to be pitched to.
We can CT scan into the structure of the bony inner ear, and from that you can actually get an idea of what frequency of sounds the inner ear was structured to be pitched to.
Lex Fridman
Wow.
Wow.
Dave Hone
Which doesn’t actually tell you very much, but it’s phenomenally cool that you can do it.
Which doesn’t actually tell you very much, but it’s phenomenally cool that you can do it.
Lex Fridman
We should say you also have quite a bit of a background in biology. So you’re trying to reconstruct biology from, go from paleontology to biology.
We should say you also have quite a bit of a background in biology. So you’re trying to reconstruct biology from, go from paleontology to biology.
Dave Hone
Yeah, my go-to one-liner is, “I’m a zoologist but I work on dead stuff.” My degree was zoology. My official job title now is reader of zoology. I teach zoology. I don’t teach paleo. So yeah, living animals was always actually my primary interest, and I kind of fell into paleo, but then I wanted to drag that with me because I’d been trained in behavior and ecology and it’s what I was most interested in, so then applying that knowledge and understanding to these animals.
Yeah, my go-to one-liner is, “I’m a zoologist but I work on dead stuff.” My degree was zoology. My official job title now is reader of zoology. I teach zoology. I don’t teach paleo. So yeah, living animals was always actually my primary interest, and I kind of fell into paleo, but then I wanted to drag that with me because I’d been trained in behavior and ecology and it’s what I was most interested in, so then applying that knowledge and understanding to these animals.
Lex Fridman
So to some degree, it is possible to reach towards the biology?
So to some degree, it is possible to reach towards the biology?
Dave Hone
Absolutely, yeah.
Absolutely, yeah.
Lex Fridman
So with the ear, that’s interesting. The brain.
So with the ear, that’s interesting. The brain.
Dave Hone
Yeah.
Yeah.
Lex Fridman
So we can know something about the brain?
So we can know something about the brain?
Dave Hone
Yeah, but then when you get into intelligence is when it gets really awkward because working out exactly which bits of this are probably linked to, like, the main fundamental processing and what you’d link to actual intelligence is tough. On top of that, we don’t really know what’s been the big challenge of the last couple of years of this question, was T-Rex and other dinosaurs super intelligent of neuron density? How many basically nerve cells can you pack in per bit of volume? Because birds have some weird tricks which means they get a lot more brain per volume.
Yeah, but then when you get into intelligence is when it gets really awkward because working out exactly which bits of this are probably linked to, like, the main fundamental processing and what you’d link to actual intelligence is tough. On top of that, we don’t really know what’s been the big challenge of the last couple of years of this question, was T-Rex and other dinosaurs super intelligent of neuron density? How many basically nerve cells can you pack in per bit of volume? Because birds have some weird tricks which means they get a lot more brain per volume.
Dave Hone
Just how much of the brain case was brain and how much was, like, goop around it, we know varies, so you’re getting kind of fairly big upper and lower band. And then the other big thing we always have to do is factor in size. Big animals need bigger brains to operate them. So whales have really big brains, but whales weigh tens of tons. They’re not smarter than us. So you have the classic thing is a thing called the encephalization quotient, which is at a very simple level, it is the volume of brain scaled against the size of the animal. So we have huge brains compared to how big we are, so we’re massively up the chart. And then you do have a few things with, like, worms.
Just how much of the brain case was brain and how much was, like, goop around it, we know varies, so you’re getting kind of fairly big upper and lower band. And then the other big thing we always have to do is factor in size. Big animals need bigger brains to operate them. So whales have really big brains, but whales weigh tens of tons. They’re not smarter than us. So you have the classic thing is a thing called the encephalization quotient, which is at a very simple level, it is the volume of brain scaled against the size of the animal. So we have huge brains compared to how big we are, so we’re massively up the chart. And then you do have a few things with, like, worms.
Dave Hone
I should probably stick to vertebrates, because there’s some stupid stuff which has a surprisingly small brain for its size. Most things that aren’t primates, and things like crows and parrots, sit very neatly on a couple of different curves. There’s a curve for reptiles, a curve for birds, a curve for mammals, and things like this. And basically that’s it. But also actually our understanding with mass estimates for dinosaurs is good but not great, and so you could easily be out by, you could easily be out by like 20 or 30% on the volume of the brain inside the brain case, and then you could be out by 20 or 30% on your mass estimate.
I should probably stick to vertebrates, because there’s some stupid stuff which has a surprisingly small brain for its size. Most things that aren’t primates, and things like crows and parrots, sit very neatly on a couple of different curves. There’s a curve for reptiles, a curve for birds, a curve for mammals, and things like this. And basically that’s it. But also actually our understanding with mass estimates for dinosaurs is good but not great, and so you could easily be out by, you could easily be out by like 20 or 30% on the volume of the brain inside the brain case, and then you could be out by 20 or 30% on your mass estimate.
Dave Hone
Well now suddenly, it’s very easy to make the brain too big and the animal too light and it’s super smart, or make the brain too small and the animal too heavy and it’s super dumb. So that’s awkward, unfortunately.
Well now suddenly, it’s very easy to make the brain too big and the animal too light and it’s super smart, or make the brain too small and the animal too heavy and it’s super dumb. So that’s awkward, unfortunately.
Lex Fridman
So apparently there’s some controversial paper that suggests that T-Rex has primate-level intelligence.
So apparently there’s some controversial paper that suggests that T-Rex has primate-level intelligence.
Dave Hone
Yeah, and then that was shot down within a few months by a team of paleontologists and a couple of other neurologists who really went to town on it.
Yeah, and then that was shot down within a few months by a team of paleontologists and a couple of other neurologists who really went to town on it.
Lex Fridman
Just counting the number of… trying to estimate the number of neurons.
Just counting the number of… trying to estimate the number of neurons.
Dave Hone
Yeah, it was the neuron density thing, and yeah, I’ve unsurprisingly support the revised one which was done by a whole bunch… Yeah, the Casper paper. I’ve spoken to Casper about it, a couple of the other authors.
Yeah, it was the neuron density thing, and yeah, I’ve unsurprisingly support the revised one which was done by a whole bunch… Yeah, the Casper paper. I’ve spoken to Casper about it, a couple of the other authors.
Lex Fridman
So they scaled down the number of neurons from three billion down to 250 million to 1.7 billion.
So they scaled down the number of neurons from three billion down to 250 million to 1.7 billion.
Dave Hone
Yeah, much, much lower.
Yeah, much, much lower.
Lex Fridman
Which is similar to crocodiles and other primates.
Which is similar to crocodiles and other primates.
Dave Hone
Yeah, which is kind of what you’d expect. I mean a couple of other people at various times have suggested they’re really smart, and again, you know, birds have this thing of, they have this weird thing of neuron folding and they can basically pack in a lot more than you’d expect. You know, that’s why crows are that smart despite having tiny brains, relatively even compared to their overall size. But I’m being obviously overly facetious, but if ultimately part of your scaling is how big is the animal versus how big is its brain, that’s most of a T-Rex brain. It’s a fraction of the size of a chimp brain, and chimps don’t weigh seven tons.
Yeah, which is kind of what you’d expect. I mean a couple of other people at various times have suggested they’re really smart, and again, you know, birds have this thing of, they have this weird thing of neuron folding and they can basically pack in a lot more than you’d expect. You know, that’s why crows are that smart despite having tiny brains, relatively even compared to their overall size. But I’m being obviously overly facetious, but if ultimately part of your scaling is how big is the animal versus how big is its brain, that’s most of a T-Rex brain. It’s a fraction of the size of a chimp brain, and chimps don’t weigh seven tons.
Dave Hone
So you know it’s a kind of Hitchens like, “extraordinary claims require extraordinary evidence,” but like you just look at it and go that’s about the proportion we’d expect for a croc. Now crocs are smarter than people think, but they’re sure as hell not monkeys. You’re going to have to really come up with something much more convincing than, “Oh, well if you just pack ’em in if you scale ’em this way.”
So you know it’s a kind of Hitchens like, “extraordinary claims require extraordinary evidence,” but like you just look at it and go that’s about the proportion we’d expect for a croc. Now crocs are smarter than people think, but they’re sure as hell not monkeys. You’re going to have to really come up with something much more convincing than, “Oh, well if you just pack ’em in if you scale ’em this way.”
Lex Fridman
A bit of a ridiculous question but is it possible to find evidence of tool use?
A bit of a ridiculous question but is it possible to find evidence of tool use?
Dave Hone
I mean, in theory, it depends how quite how you define a tool. So, birds building nests is arguably tool use to a certain degree. I’m aware of… I suspect it’s turned out not to be the case. I was, I was shown a very rough, not very well-prepared fossil 20 years ago now, no, 15 years ago now, where someone said, “We think this might be an early bird nest and therefore potentially even a dinosaur nest.” And nothing’s ever been published, so my guess is once they excavated it and had a good look at it, they went, “Nah, it’s nothing, really.” I mean, I guess the question is, how would you know?
I mean, in theory, it depends how quite how you define a tool. So, birds building nests is arguably tool use to a certain degree. I’m aware of… I suspect it’s turned out not to be the case. I was, I was shown a very rough, not very well-prepared fossil 20 years ago now, no, 15 years ago now, where someone said, “We think this might be an early bird nest and therefore potentially even a dinosaur nest.” And nothing’s ever been published, so my guess is once they excavated it and had a good look at it, they went, “Nah, it’s nothing, really.” I mean, I guess the question is, how would you know?
Lex Fridman
Yeah, it would be difficult unless it’s obvious widespread primate-like—
Yeah, it would be difficult unless it’s obvious widespread primate-like—
Dave Hone
Yeah, but even then, like, you know—
Yeah, but even then, like, you know—
Lex Fridman
—sapient-like almost.
—sapient-like almost.
Dave Hone
Chimps, you know, chimps make loads of tools, but it’s mostly made of wood and they’re mostly just breaking stuff, and then the odds of that preserving are very low. You do get things like chimps and otters, sea otters, you know, they have their favorite anvil and hammer stones to break stuff open, but again, the reason they picked that stone is because it’s really heavy and good at breaking oysters or breaking nuts. It’s not going to leave, or probably not going to leave, stereotypical points on the rock, and even then you could just go, “Well, maybe it, you know, just got bashed up in a river or something.”
Chimps, you know, chimps make loads of tools, but it’s mostly made of wood and they’re mostly just breaking stuff, and then the odds of that preserving are very low. You do get things like chimps and otters, sea otters, you know, they have their favorite anvil and hammer stones to break stuff open, but again, the reason they picked that stone is because it’s really heavy and good at breaking oysters or breaking nuts. It’s not going to leave, or probably not going to leave, stereotypical points on the rock, and even then you could just go, “Well, maybe it, you know, just got bashed up in a river or something.”
Lex Fridman
So in your book, Uncovering Dinosaur Behavior, you kind of conclude that there’s a lot we might not know. What’s a particular lost behavior that we don’t know about that you think might be out there?
So in your book, Uncovering Dinosaur Behavior, you kind of conclude that there’s a lot we might not know. What’s a particular lost behavior that we don’t know about that you think might be out there?
Dave Hone
Something like midden use, so a whole bunch of animals and birds who basically crap in the same spot. They have their spot, and that’s where they go. So, rabbits do this, sloths do this, aardvarks, even things like wildebeest and zebra, uh, not zebra, impala will tend to go back to the same place every day. But the fossil record of coprolites, fossilized feces and fossilized waste from dinosaurs, it exists, but it’s extremely rough because of course, this is the stuff that’s already been digested and broken down.
Something like midden use, so a whole bunch of animals and birds who basically crap in the same spot. They have their spot, and that’s where they go. So, rabbits do this, sloths do this, aardvarks, even things like wildebeest and zebra, uh, not zebra, impala will tend to go back to the same place every day. But the fossil record of coprolites, fossilized feces and fossilized waste from dinosaurs, it exists, but it’s extremely rough because of course, this is the stuff that’s already been digested and broken down.
Dave Hone
It’s already kind of gooey and broken up and doesn’t have a lot going for it. If they do it in water, it’s going to dissipate instantly. If it rains, it’s probably going to fall apart. Things like dung beetles and flies will break it down even if it gets covered by sand or whatever from a sandstorm, it’s probably still going to compress and separate. So, are you ever going to find it? Maybe going back to our trackway stuff, but even if you do, what species left that? We know a big herbivore did this, but was it a Triceratops or was it an Ankylosaur? Those animals are very different things doing very different things, and it would tell you different things about their behavior if we know.
It’s already kind of gooey and broken up and doesn’t have a lot going for it. If they do it in water, it’s going to dissipate instantly. If it rains, it’s probably going to fall apart. Things like dung beetles and flies will break it down even if it gets covered by sand or whatever from a sandstorm, it’s probably still going to compress and separate. So, are you ever going to find it? Maybe going back to our trackway stuff, but even if you do, what species left that? We know a big herbivore did this, but was it a Triceratops or was it an Ankylosaur? Those animals are very different things doing very different things, and it would tell you different things about their behavior if we know.
Cannibalism among T-Rex
Lex Fridman
Yeah, so one piece of behavior I forgot to ask you about— —so T-Rex engaging in cannibalism—
Yeah, so one piece of behavior I forgot to ask you about— —so T-Rex engaging in cannibalism—
Dave Hone
Yeah, almost certainly. Well, certainly, I think we’ve got a T-Rex bone with a T-Rex embedded tooth in it— … with o- with overgrowth.
Yeah, almost certainly. Well, certainly, I think we’ve got a T-Rex bone with a T-Rex embedded tooth in it— … with o- with overgrowth.
Dave Hone
I think it’s… I want to say it’s an Albertosaur rather than T-Rex, but there is a tyrannosaur jaw in Alberta with a T-Rex tooth stuck in it. And you can pull the little tooth out and then there’s a T-Rex foot bone with these distinctive feeding traces on them. And this actually goes back to that early point about T-Rex being weird, being the only big carnivore in its environment, because if this was even Mongolia at that time, but anywhere else, there’s three or four or five big carnivores. And so you find a bone and it’s chewed up by a big carnivore, we don’t know who did it. But when you see a big bone chewed up in a T-Rex ecosystem, well, you know, if it’s anything bigger than this, you know it was T-Rex. And so when it’s a T-Rex bone with T-Rex bite marks—
I think it’s… I want to say it’s an Albertosaur rather than T-Rex, but there is a tyrannosaur jaw in Alberta with a T-Rex tooth stuck in it. And you can pull the little tooth out and then there’s a T-Rex foot bone with these distinctive feeding traces on them. And this actually goes back to that early point about T-Rex being weird, being the only big carnivore in its environment, because if this was even Mongolia at that time, but anywhere else, there’s three or four or five big carnivores. And so you find a bone and it’s chewed up by a big carnivore, we don’t know who did it. But when you see a big bone chewed up in a T-Rex ecosystem, well, you know, if it’s anything bigger than this, you know it was T-Rex. And so when it’s a T-Rex bone with T-Rex bite marks—
Lex Fridman
Yep, it’s pretty obvious.
Yep, it’s pretty obvious.
Dave Hone
QED. Yeah, so it must have been.
QED. Yeah, so it must have been.
Lex Fridman
That’s fascinating, isn’t it? That- that they would attack themselves, their own species.
That’s fascinating, isn’t it? That- that they would attack themselves, their own species.
Dave Hone
Cannibalism turns up in a whole bunch of stuff, but it’s very rare as like a fairly habitual behavior.
Cannibalism turns up in a whole bunch of stuff, but it’s very rare as like a fairly habitual behavior.
Lex Fridman
So there are several reasons you might be engaging in, or rather, teeth marks might tell various stories. So it could be just fighting for dominance, right?
So there are several reasons you might be engaging in, or rather, teeth marks might tell various stories. So it could be just fighting for dominance, right?
Dave Hone
It could, but it’s unlikely, and in this case, again, we see there are loads of facial injuries in tyrannosaurs, in carnivorous dinosaurs generally, but particularly tyrannosaurs. They have really beaten up heads. Like, half or even two-thirds of adults have scarring and facial injuries, but you see healing on it, whereas this foot does not show healing and it’s got multiple different bites. The idea that you’d bite a foot whilst fighting someone and then go back and bite that one foot again? That’s pretty unlikely, not impossible.
It could, but it’s unlikely, and in this case, again, we see there are loads of facial injuries in tyrannosaurs, in carnivorous dinosaurs generally, but particularly tyrannosaurs. They have really beaten up heads. Like, half or even two-thirds of adults have scarring and facial injuries, but you see healing on it, whereas this foot does not show healing and it’s got multiple different bites. The idea that you’d bite a foot whilst fighting someone and then go back and bite that one foot again? That’s pretty unlikely, not impossible.
Lex Fridman
So, looks like it’s eating, not fighting.
So, looks like it’s eating, not fighting.
Dave Hone
Yeah, and they’re more like the feeding scrape traces than they are the big puncture wounds. So again, not impossible but very weird for that to…
Yeah, and they’re more like the feeding scrape traces than they are the big puncture wounds. So again, not impossible but very weird for that to…
Lex Fridman
So fascinating.
So fascinating.
Dave Hone
…occur as a fight. So yeah, they’re fighting, probably quite a lot, but whether or not you actually eat something that you’ve killed or that you stumble across as a body, it definitely happens occasionally, otherwise we wouldn’t have the record of that. But there’s a reason carnivores often don’t eat carnivores, and particularly don’t eat their own species, which is parasitism. Carnivores in general are loaded with parasites because they spend their whole lives eating food which has parasites and stuff in it, and so they tend to accumulate a lot of them. What’s the one thing that’s definitely going to have the most parasites in it that can infect you as, for example, a lion?
…occur as a fight. So yeah, they’re fighting, probably quite a lot, but whether or not you actually eat something that you’ve killed or that you stumble across as a body, it definitely happens occasionally, otherwise we wouldn’t have the record of that. But there’s a reason carnivores often don’t eat carnivores, and particularly don’t eat their own species, which is parasitism. Carnivores in general are loaded with parasites because they spend their whole lives eating food which has parasites and stuff in it, and so they tend to accumulate a lot of them. What’s the one thing that’s definitely going to have the most parasites in it that can infect you as, for example, a lion?
Dave Hone
It’s another lion that eats the exact same stuff that you do. So, while it is food, and particularly if you’ve just won a big fight you might want to eat, in general, cannibalism’s pretty rare, because it’s generally not a good idea if there’s other food available. But yeah, if you’re starving to death or, you know, the other guy ripped your leg half off and you don’t think you’re gonna walk for six weeks—not that you’d think, but you know what I mean—and now there’s a body in front of you, it’s two tons of meat. Well, maybe you should tuck in.
It’s another lion that eats the exact same stuff that you do. So, while it is food, and particularly if you’ve just won a big fight you might want to eat, in general, cannibalism’s pretty rare, because it’s generally not a good idea if there’s other food available. But yeah, if you’re starving to death or, you know, the other guy ripped your leg half off and you don’t think you’re gonna walk for six weeks—not that you’d think, but you know what I mean—and now there’s a body in front of you, it’s two tons of meat. Well, maybe you should tuck in.
Lex Fridman
This is so fascinating, like, once again, figuring out this puzzle. And what does cannibalism tell you? You’re piecing together the story of T-Rex: their life, their hunting life, their social life, from their evolution to their biology to their behavior. That’s so fascinating.
This is so fascinating, like, once again, figuring out this puzzle. And what does cannibalism tell you? You’re piecing together the story of T-Rex: their life, their hunting life, their social life, from their evolution to their biology to their behavior. That’s so fascinating.
Dave Hone
Yeah, we try to. But the thing is, it’s always getting better, which is… So that’s what I try to finish on in my book on behavior is, I felt I’d written a couple of hundred pages of, “We keep screwing this up, we’ve overstated this, I think people have misunderstood this.” You know, like the track ways stuff and like, this is not as confident as we think, you need to look at these alternate explanations. This behavior shows that that behavior probably doesn’t correlate the way you said it does, yada, yada, yada. And it’s like, now I feel like I’ve just written a book trashing my entire field and all my colleagues, or at least many of my colleagues.
Yeah, we try to. But the thing is, it’s always getting better, which is… So that’s what I try to finish on in my book on behavior is, I felt I’d written a couple of hundred pages of, “We keep screwing this up, we’ve overstated this, I think people have misunderstood this.” You know, like the track ways stuff and like, this is not as confident as we think, you need to look at these alternate explanations. This behavior shows that that behavior probably doesn’t correlate the way you said it does, yada, yada, yada. And it’s like, now I feel like I’ve just written a book trashing my entire field and all my colleagues, or at least many of my colleagues.
Dave Hone
But then you flip it on its head and go, “We’ve got techniques that were undreamed of 10 years ago. We’ve got data streams that were undreamed of 10 years ago. And we’ve actually got a much better understanding of living species.” And then on top of that, we’re just constantly finding new animals. You know, we have not just new species, which are often, I think, a lot less important, but just new specimens of ones we know, because again, it’s building up that database. You know, we drifted off talking about sexual selection, but yeah, if you want to know growth, one or two animals doesn’t tell you how an animal, a species grows.
But then you flip it on its head and go, “We’ve got techniques that were undreamed of 10 years ago. We’ve got data streams that were undreamed of 10 years ago. And we’ve actually got a much better understanding of living species.” And then on top of that, we’re just constantly finding new animals. You know, we have not just new species, which are often, I think, a lot less important, but just new specimens of ones we know, because again, it’s building up that database. You know, we drifted off talking about sexual selection, but yeah, if you want to know growth, one or two animals doesn’t tell you how an animal, a species grows.
Dave Hone
50 or 100 does, and then that reveals a hell of a lot more about things like sexual dimorphism and growth rate and how vulnerable juveniles are and population structure and maybe how they’re reproducing. So I’d like to think I knocked down. I think I knocked down a few towers that probably a few people were fond of, but I think we have the raw materials to build a much better, stronger edifice of behavior. But as you say, it’s always going to be based around often very piecemeal evidence and possibilities and probabilities rather than certainties.
50 or 100 does, and then that reveals a hell of a lot more about things like sexual dimorphism and growth rate and how vulnerable juveniles are and population structure and maybe how they’re reproducing. So I’d like to think I knocked down. I think I knocked down a few towers that probably a few people were fond of, but I think we have the raw materials to build a much better, stronger edifice of behavior. But as you say, it’s always going to be based around often very piecemeal evidence and possibilities and probabilities rather than certainties.
Extinction of the dinosaurs
Lex Fridman
Let’s talk about a sad topic, extinction.
Let’s talk about a sad topic, extinction.
Dave Hone
Yep.
Yep.
Lex Fridman
How did the dinosaurs go extinct?
How did the dinosaurs go extinct?
Dave Hone
Mostly probably pretty quickly, but it really is the answer that I think most people are now probably familiar with, which is, it’s an asteroid impact or some kind of extraterrestrial body hit just off the coast of the Yucatan Peninsula in Mexico about 66 million years ago that basically atomized the asteroid, but also importantly, the bit of the ground it hit, or below the sea bed that it hit, was basically the worst kind of rock, and so it put up this enormous ash cloud. And basically, you have a nearly instantaneous nuclear winter. I mean, immediate devastation. Anything immediately next to it is obviously just vaporized. But you know, this is the sort of thing that’s hot enough to set fire to the atmosphere.
Mostly probably pretty quickly, but it really is the answer that I think most people are now probably familiar with, which is, it’s an asteroid impact or some kind of extraterrestrial body hit just off the coast of the Yucatan Peninsula in Mexico about 66 million years ago that basically atomized the asteroid, but also importantly, the bit of the ground it hit, or below the sea bed that it hit, was basically the worst kind of rock, and so it put up this enormous ash cloud. And basically, you have a nearly instantaneous nuclear winter. I mean, immediate devastation. Anything immediately next to it is obviously just vaporized. But you know, this is the sort of thing that’s hot enough to set fire to the atmosphere.
Dave Hone
I think the one I read was, it’s something like a piece of rock about the size of Mount Everest traveling at something like 10 times the speed of sound. So just the momentum between that speed and mass thing is just beyond extraordinary.
I think the one I read was, it’s something like a piece of rock about the size of Mount Everest traveling at something like 10 times the speed of sound. So just the momentum between that speed and mass thing is just beyond extraordinary.
Lex Fridman
But I think what does a lot of damage is the change in the climate, and-
But I think what does a lot of damage is the change in the climate, and-
Dave Hone
Yeah, and so every… There are five recognized mass extinctions in the history of life on Earth, and all of them are ultimately some form of climate change. Whether it’s volcanic eruptions or hyper-oxygenation, or an ice age or whatever, it’s climate changing too quickly for things to adapt to. And that starts, you know, that just cripples entire populations and entire species, and then if you do enough damage to enough things, you start getting ecosystem collapse. You know, this moth has died out. Well, it turns out that moth is the primary pollinator of this tree. Well, that tree produced nuts, and that was the entire winter survival store for this squirrel.
Yeah, and so every… There are five recognized mass extinctions in the history of life on Earth, and all of them are ultimately some form of climate change. Whether it’s volcanic eruptions or hyper-oxygenation, or an ice age or whatever, it’s climate changing too quickly for things to adapt to. And that starts, you know, that just cripples entire populations and entire species, and then if you do enough damage to enough things, you start getting ecosystem collapse. You know, this moth has died out. Well, it turns out that moth is the primary pollinator of this tree. Well, that tree produced nuts, and that was the entire winter survival store for this squirrel.
Dave Hone
Well, that squirrel was the main food of this cat, and now suddenly the moth going has killed four other things and everything that’s attached to that. And so that’s really what did for them.
Well, that squirrel was the main food of this cat, and now suddenly the moth going has killed four other things and everything that’s attached to that. And so that’s really what did for them.
Lex Fridman
And sadly, the big things… Well, everything dies, but the big things have a lot of trouble recovering.
And sadly, the big things… Well, everything dies, but the big things have a lot of trouble recovering.
Dave Hone
Yeah, so I mean, this is, you know, a classic example. So, oh well, you know, what is paleontology good for? Well, actually really it’s extinction, which is very relevant right now in that we have a very good handle on when you have extreme climate stress what tends to suffer more and what tends to suffer less. And as we say, big things fundamentally do. They require more resources, they require more area of land. You need to roam further, which means, you know, if you’re a mouse and you happen to have a little bit of land and that bit doesn’t get hit, you’re fine; whereas if you’re an elephant and you need all of this land and even a chunk of it goes wrong, well that’s probably maybe not enough for you to survive anymore.
Yeah, so I mean, this is, you know, a classic example. So, oh well, you know, what is paleontology good for? Well, actually really it’s extinction, which is very relevant right now in that we have a very good handle on when you have extreme climate stress what tends to suffer more and what tends to suffer less. And as we say, big things fundamentally do. They require more resources, they require more area of land. You need to roam further, which means, you know, if you’re a mouse and you happen to have a little bit of land and that bit doesn’t get hit, you’re fine; whereas if you’re an elephant and you need all of this land and even a chunk of it goes wrong, well that’s probably maybe not enough for you to survive anymore.
Dave Hone
So yeah, big things suffer disproportionately badly from these things, and mostly as well, we think terrestrial things generally do worse than things in water because water’s a great equilibrating medium, you know, it takes ages to heat up, it takes ages to cool down. Yes, if you live in specific coastal conditions or something, maybe you can’t travel that easily, but you know, whales can go from pole to pole quite happily, and plenty of other fish do too. So if it’s too hot or too cold or too nasty here, you can just swim somewhere else, whereas if you’re an animal and you hit a desert or you hit a mountain range or you hit a river, you stop moving and you’re trapped and then you die. So dinosaurs were, yeah, the worst possible combination.
So yeah, big things suffer disproportionately badly from these things, and mostly as well, we think terrestrial things generally do worse than things in water because water’s a great equilibrating medium, you know, it takes ages to heat up, it takes ages to cool down. Yes, if you live in specific coastal conditions or something, maybe you can’t travel that easily, but you know, whales can go from pole to pole quite happily, and plenty of other fish do too. So if it’s too hot or too cold or too nasty here, you can just swim somewhere else, whereas if you’re an animal and you hit a desert or you hit a mountain range or you hit a river, you stop moving and you’re trapped and then you die. So dinosaurs were, yeah, the worst possible combination.
Dave Hone
They were mostly big and they were mostly on land, and yeah, it’s not really surprising they did very badly out of it.
They were mostly big and they were mostly on land, and yeah, it’s not really surprising they did very badly out of it.
Lex Fridman
And then some species did survive. I guess I think you’ve said that it’s very possible that some dinosaurs even survived for a time…
And then some species did survive. I guess I think you’ve said that it’s very possible that some dinosaurs even survived for a time…
Dave Hone
Oh, w-
Oh, w-
Lex Fridman
…that we might be able to discover down the line.
…that we might be able to discover down the line.
Dave Hone
I’d be amazed if they didn’t. I mean, there’s been various reports over the decades of the K-Pg or K-T extinction, the Cretaceous-Paleogene or Cretaceous-Tertiary extinction of dinosaurs surviving and none of them have held up. It’s usually been bio-turbation, so literally things like prairie dogs digging, and of course they’ll dig a tooth up and then move it through the layers, or things like this, or plant roots can move stuff, or just soils can get churned up. But I would be shocked if they didn’t. Not like, oh yeah, the dinosaur survived, and the Loch Ness Monster, and stuff like that, but like, yes, it was a global devastation.
I’d be amazed if they didn’t. I mean, there’s been various reports over the decades of the K-Pg or K-T extinction, the Cretaceous-Paleogene or Cretaceous-Tertiary extinction of dinosaurs surviving and none of them have held up. It’s usually been bio-turbation, so literally things like prairie dogs digging, and of course they’ll dig a tooth up and then move it through the layers, or things like this, or plant roots can move stuff, or just soils can get churned up. But I would be shocked if they didn’t. Not like, oh yeah, the dinosaur survived, and the Loch Ness Monster, and stuff like that, but like, yes, it was a global devastation.
Dave Hone
Yes, it’s what ultimately killed the dinosaurs, but I’d be amazed if there wasn’t some equivalent of Hawaii or New Zealand or some other tucked away island or valley where actually dinosaurs were fine for anything from a few hundred thousand to a couple of million years. But on a global scale it’s a dot on a map and the odds that we’ll ever uncover any rocks, fossiliferous rocks of that age that we then have access to that we then find a dinosaur in that we can then date properly I think is almost non-existent. But it would just be weird if they didn’t survive somewhere for a bit, or even quite a few of them in places.
Yes, it’s what ultimately killed the dinosaurs, but I’d be amazed if there wasn’t some equivalent of Hawaii or New Zealand or some other tucked away island or valley where actually dinosaurs were fine for anything from a few hundred thousand to a couple of million years. But on a global scale it’s a dot on a map and the odds that we’ll ever uncover any rocks, fossiliferous rocks of that age that we then have access to that we then find a dinosaur in that we can then date properly I think is almost non-existent. But it would just be weird if they didn’t survive somewhere for a bit, or even quite a few of them in places.
Lex Fridman
So a small, local population.
So a small, local population.
Dave Hone
We see it all the time, you know, the lemurs in Madagascar, all the stuff in New Zealand. There’s tons of weird archaic stuff hanging around in Hawaii, you know, Galapagos finches and tortoises that you don’t see anywhere else. In Australia with the marsupials, they’re almost, and then the monotremes are almost unknown outside of there. This is a pretty normal bit of biology. For animals that were so dominant globally, we know there were patches that were largely unchanged, otherwise we wouldn’t have had the mammals surviving and the crocodiles surviving and the birds surviving and newts and frogs and everything that did survive. I’m sure a few of those patches had some dinosaurs in them, but it is ultimately what killed them.
We see it all the time, you know, the lemurs in Madagascar, all the stuff in New Zealand. There’s tons of weird archaic stuff hanging around in Hawaii, you know, Galapagos finches and tortoises that you don’t see anywhere else. In Australia with the marsupials, they’re almost, and then the monotremes are almost unknown outside of there. This is a pretty normal bit of biology. For animals that were so dominant globally, we know there were patches that were largely unchanged, otherwise we wouldn’t have had the mammals surviving and the crocodiles surviving and the birds surviving and newts and frogs and everything that did survive. I’m sure a few of those patches had some dinosaurs in them, but it is ultimately what killed them.
Lex Fridman
What do you think is the chance that they would have survived? So you take some local populations and they flourish.
What do you think is the chance that they would have survived? So you take some local populations and they flourish.
Dave Hone
It’s happened. Look at, look at Australia. You know, the marsupials have done pretty well there for a very long time. You can imagine if the next mass extinction, you know, flattens a large chunk of Indonesia, for example, kangaroos could island hop pretty easily, make it to mainland Asia.
It’s happened. Look at, look at Australia. You know, the marsupials have done pretty well there for a very long time. You can imagine if the next mass extinction, you know, flattens a large chunk of Indonesia, for example, kangaroos could island hop pretty easily, make it to mainland Asia.
Lex Fridman
But then, I mean, to then lead… You take the dinosaurs… a small fraction survives and then they eventually repopulate the earth again.
But then, I mean, to then lead… You take the dinosaurs… a small fraction survives and then they eventually repopulate the earth again.
Dave Hone
I mean, that’s extraordinarily unlikely because once your population’s been crashed like that, you do have the problems of things like inbreeding or maybe you’re a great specialist to a certain area or you’re surviving because you’re isolated, you’re in a valley or you’re on an island and then dispersing again becomes really, or breaking out into those areas becomes much, much harder.
I mean, that’s extraordinarily unlikely because once your population’s been crashed like that, you do have the problems of things like inbreeding or maybe you’re a great specialist to a certain area or you’re surviving because you’re isolated, you’re in a valley or you’re on an island and then dispersing again becomes really, or breaking out into those areas becomes much, much harder.
Lex Fridman
So like the great predators like the… Even though the T-rex is such a great predator, that doesn’t, that doesn’t give you…
So like the great predators like the… Even though the T-rex is such a great predator, that doesn’t, that doesn’t give you…
Dave Hone
Yeah, because you still had the extinction event and the environment is no longer what it was that you evolved into.
Yeah, because you still had the extinction event and the environment is no longer what it was that you evolved into.
Lex Fridman
Right.
Right.
Dave Hone
And when once those systems start to recover, those other animals are going to adapt much better to them.
And when once those systems start to recover, those other animals are going to adapt much better to them.
Lex Fridman
How does that make you feel that, that this stupid asteroid from nowhere?
How does that make you feel that, that this stupid asteroid from nowhere?
Dave Hone
Well, I mean, at one level I probably wouldn’t be here if it hadn’t.
Well, I mean, at one level I probably wouldn’t be here if it hadn’t.
Lex Fridman
So, I mean, that’s an interesting question. I mean, do you think… There’s several ways of asking that question, but if dinosaurs didn’t go extinct, do you think humans would still be able to evolve?
So, I mean, that’s an interesting question. I mean, do you think… There’s several ways of asking that question, but if dinosaurs didn’t go extinct, do you think humans would still be able to evolve?
Dave Hone
I mean, my guess is probably not. I don’t think, I don’t think it’s quite the… What, what was it? Oh, Simon Conway Morris had that book. What was it? “Inevitability of Man.” That like even if you rewound it, everything would come back. I’m not… I don’t think it’s that far. I certainly don’t think it’s anything like quite like the butterfly effect of, you know, if one mammal had been trodden on by one T-rex then humans would never have evolved either.
I mean, my guess is probably not. I don’t think, I don’t think it’s quite the… What, what was it? Oh, Simon Conway Morris had that book. What was it? “Inevitability of Man.” That like even if you rewound it, everything would come back. I’m not… I don’t think it’s that far. I certainly don’t think it’s anything like quite like the butterfly effect of, you know, if one mammal had been trodden on by one T-rex then humans would never have evolved either.
Lex Fridman
We should say that the ancestor of the primates or the closest… There’s a lot of debate around this, it’s a kind of tiny creature, Purgatorius, that was our ancestor. Yeah, so this is us. This is what we evolved from.
We should say that the ancestor of the primates or the closest… There’s a lot of debate around this, it’s a kind of tiny creature, Purgatorius, that was our ancestor. Yeah, so this is us. This is what we evolved from.
Dave Hone
Yes. Scandentia. I think is the group.
Yes. Scandentia. I think is the group.
Lex Fridman
Basically a rodent.
Basically a rodent.
Dave Hone
Yeah, I mean there were probably primates around in the Cretaceous. Some of the molecular clock stuff suggests that primates were around alongside the dinosaurs, but we’ve never found any osteological evidence of that. But yeah, there’s been a back and forth about whether dinosaurs were already on their way out or were they a bit limited by the very end of the Cretaceous. I think the more recent analyses have shown that’s probably not the case, because in other words, they were basically doing fine right up to the extinction event. And so yeah, if the asteroid hadn’t hit, there’s no reason to think that they were on some kind of terminal decline. Something else may have hit.
Yeah, I mean there were probably primates around in the Cretaceous. Some of the molecular clock stuff suggests that primates were around alongside the dinosaurs, but we’ve never found any osteological evidence of that. But yeah, there’s been a back and forth about whether dinosaurs were already on their way out or were they a bit limited by the very end of the Cretaceous. I think the more recent analyses have shown that’s probably not the case, because in other words, they were basically doing fine right up to the extinction event. And so yeah, if the asteroid hadn’t hit, there’s no reason to think that they were on some kind of terminal decline. Something else may have hit.
Dave Hone
There may have been, you know, some other environmental disaster or something may have happened, or maybe they’re more vulnerable to stuff than we know of, but there’s no… I don’t think there’s any really good reason to think they wouldn’t have carried on relatively well. I mean, even post-dinosaur extinction, you had a window where the mammals and the birds were pretty competing. There was a lot of big birds getting going and various big carnivorous terrestrial, kind of, hyper-predatory ostrich-like things, like the phorusrhacids. So there’s no guarantee that mammals would have even taken over post the dinosaur extinction, since initially they were in a fair bit of competition.
There may have been, you know, some other environmental disaster or something may have happened, or maybe they’re more vulnerable to stuff than we know of, but there’s no… I don’t think there’s any really good reason to think they wouldn’t have carried on relatively well. I mean, even post-dinosaur extinction, you had a window where the mammals and the birds were pretty competing. There was a lot of big birds getting going and various big carnivorous terrestrial, kind of, hyper-predatory ostrich-like things, like the phorusrhacids. So there’s no guarantee that mammals would have even taken over post the dinosaur extinction, since initially they were in a fair bit of competition.
Lex Fridman
So this is just going to… Based on current scientific understanding, human evolution would be highly improbable if dinosaurs hadn’t gone extinct 66 million years ago because dinosaurs dominated ecological niches.
So this is just going to… Based on current scientific understanding, human evolution would be highly improbable if dinosaurs hadn’t gone extinct 66 million years ago because dinosaurs dominated ecological niches.
Dave Hone
For everything, basically.
For everything, basically.
Lex Fridman
Wide-bodied mammals.
Wide-bodied mammals.
Dave Hone
I mean, that’s the thing. You look through, yeah, the Mesozoic, the late Triassic, dinosaurs are there alongside a whole bunch of other big and unusual and interesting reptiles and some other early pre-mammal-like things that are closer to mammals than the reptiles. But once you’ve gotten into the Jurassic, you’ve now got a solid like 120, 130 million years where almost anywhere on Earth, if you saw an animal bigger than a raccoon, it was probably a dinosaur. That’s how incredibly dominant they… You know, as dominant, if not more dominant than modern mammals.
I mean, that’s the thing. You look through, yeah, the Mesozoic, the late Triassic, dinosaurs are there alongside a whole bunch of other big and unusual and interesting reptiles and some other early pre-mammal-like things that are closer to mammals than the reptiles. But once you’ve gotten into the Jurassic, you’ve now got a solid like 120, 130 million years where almost anywhere on Earth, if you saw an animal bigger than a raccoon, it was probably a dinosaur. That’s how incredibly dominant they… You know, as dominant, if not more dominant than modern mammals.
Lex Fridman
But is it fair to say that they were mostly dumb?
But is it fair to say that they were mostly dumb?
Dave Hone
I don’t think so, because I think that comes down to A) That bit of kind of classic almost Victorian speciesism, and you get these insane hypotheses like dinosaurs as a species or as a lineage became senile so they forgot to breed. I know it’s literally a suggested idea. You know, the mammals ate their eggs and all of this kind of stuff. Dinosaurs only lived alongside mammals for 100 million years. It’d be weird if they all went extinct at the same time because suddenly egg eating evolved. You’ve got problems like this. But also, again, that general speciesism which, you know, even goes back to…
I don’t think so, because I think that comes down to A) That bit of kind of classic almost Victorian speciesism, and you get these insane hypotheses like dinosaurs as a species or as a lineage became senile so they forgot to breed. I know it’s literally a suggested idea. You know, the mammals ate their eggs and all of this kind of stuff. Dinosaurs only lived alongside mammals for 100 million years. It’d be weird if they all went extinct at the same time because suddenly egg eating evolved. You’ve got problems like this. But also, again, that general speciesism which, you know, even goes back to…
Dave Hone
Like Linnaeus and his taxonomic ranks, and even arguably stuff like Aristotle. You’ve got humans are superior in some way, and we’re superior to the other mammals. And of course, mammals are closest to us so they must be quite good. And then they’ve got to be better than lizards, and then lizards have to be better than frogs, and frogs have to be better than fish. So that gets you into the, “Well, reptiles must be stupid.” And they’re not.
Like Linnaeus and his taxonomic ranks, and even arguably stuff like Aristotle. You’ve got humans are superior in some way, and we’re superior to the other mammals. And of course, mammals are closest to us so they must be quite good. And then they’ve got to be better than lizards, and then lizards have to be better than frogs, and frogs have to be better than fish. So that gets you into the, “Well, reptiles must be stupid.” And they’re not.
Lex Fridman
I wonder if a human intelligence level organism could have evolved from the dinosaurs.
I wonder if a human intelligence level organism could have evolved from the dinosaurs.
Dave Hone
I mean, that’s been hypothesized plenty of times. Dale Russell, a Canadian paleontologist, the famous guy who came up with this human-like Troodontid that was done for a TV documentary. I think the one that Christopher Reeve narrated. I think is a remake, but I’ve seen the original that Dale had made for his TV show and it’s still… It’s sitting in the collections of the National Museum of Nature in Ottawa, for Canada. It’s really, really cool. It’s like this five-foot tall dinosauroid. That was it there on the screen.
I mean, that’s been hypothesized plenty of times. Dale Russell, a Canadian paleontologist, the famous guy who came up with this human-like Troodontid that was done for a TV documentary. I think the one that Christopher Reeve narrated. I think is a remake, but I’ve seen the original that Dale had made for his TV show and it’s still… It’s sitting in the collections of the National Museum of Nature in Ottawa, for Canada. It’s really, really cool. It’s like this five-foot tall dinosauroid. That was it there on the screen.
Lex Fridman
“Model of the hypothetical dinosauroid and display at the dinosaur museum in Dorchester.”
“Model of the hypothetical dinosauroid and display at the dinosaur museum in Dorchester.”
Dave Hone
Oh, Dorchester. That’s in England. Yeah, I knew there were a couple of copies of it. Troodon always comes back as the most intelligent dinosaur because it has really quite a big brain for its size. It does have a high encephalization quotient, so it’s always been tagged as a very good candidate for being the smartest dinosaur. And basically, he just hybridized that with a human. But of course, why would these things end up as plantigrade quadrupeds, and why would they go back to five fingers and… Actually, I think he’s only got three, to be fair, but he’s got very human-like feet. Why has it got no tail? Why would those things suddenly disappear? There’s no real reason other than just kind of human exceptionalism.
Oh, Dorchester. That’s in England. Yeah, I knew there were a couple of copies of it. Troodon always comes back as the most intelligent dinosaur because it has really quite a big brain for its size. It does have a high encephalization quotient, so it’s always been tagged as a very good candidate for being the smartest dinosaur. And basically, he just hybridized that with a human. But of course, why would these things end up as plantigrade quadrupeds, and why would they go back to five fingers and… Actually, I think he’s only got three, to be fair, but he’s got very human-like feet. Why has it got no tail? Why would those things suddenly disappear? There’s no real reason other than just kind of human exceptionalism.
Dave Hone
But like, I mean, you could argue some parrots, some crows are phenomenally intelligent and show extremely clever behaviors on a par with apes. So at some level, some dinosaurs were extremely intelligent.
But like, I mean, you could argue some parrots, some crows are phenomenally intelligent and show extremely clever behaviors on a par with apes. So at some level, some dinosaurs were extremely intelligent.
Lex Fridman
I mean, yeah, this is a whole other conversation, but all the tiny details that lead to the explosion that is, in our evolutionary tree, that is Homo sapiens. Like what is it? Opposable thumbs, right? Is it the invention of fire and the meat-eating? Is it… … Is it some other-
I mean, yeah, this is a whole other conversation, but all the tiny details that lead to the explosion that is, in our evolutionary tree, that is Homo sapiens. Like what is it? Opposable thumbs, right? Is it the invention of fire and the meat-eating? Is it… … Is it some other-
Dave Hone
And fight, and sociality, and…
And fight, and sociality, and…
Lex Fridman
So many-
So many-
Dave Hone
…predation pressure, and then the changing, changing environment. I mean, the shrinking of the forest, pushing apes out of the trees into the open environment.
…predation pressure, and then the changing, changing environment. I mean, the shrinking of the forest, pushing apes out of the trees into the open environment.
Lex Fridman
And probably the same kind of story could be told about the dinosaurs or about, about anything really.
And probably the same kind of story could be told about the dinosaurs or about, about anything really.
Dave Hone
Yeah, I mean, you, you-
Yeah, I mean, you, you-
Lex Fridman
There’s no reason-
There’s no reason-
Dave Hone
I mean, if you have 160 million years and a global domination. But I mean, this is the thing. You talked about lost behaviors, but like the lost lineages. I wrote about this in one of my books, and like, you want to find a weird animal, you go to a volcanic island. Like, you go to New Zealand, you go to Hawaii, you go to the Galapagos, and yet those are the places that basically don’t really form fossils. So you think the dinosaurs we know about are strange. What was the stuff knocking around there? We’re never gonna know, sadly. But for everything you think’s weird, you know, you think birds are cool. Think about penguins compared to your average bird.
I mean, if you have 160 million years and a global domination. But I mean, this is the thing. You talked about lost behaviors, but like the lost lineages. I wrote about this in one of my books, and like, you want to find a weird animal, you go to a volcanic island. Like, you go to New Zealand, you go to Hawaii, you go to the Galapagos, and yet those are the places that basically don’t really form fossils. So you think the dinosaurs we know about are strange. What was the stuff knocking around there? We’re never gonna know, sadly. But for everything you think’s weird, you know, you think birds are cool. Think about penguins compared to your average bird.
Dave Hone
They live on an ice shelf for six months of the year and can’t fly, and massively modified skeletons, and, you know, compared to your average bird, penguins are unbelievably weird. So yeah, take an average dinosaur and take it to like penguin level or ostrich level or hummingbird level evolution. There’s going to be weirder stuff out there than we’ve found. Much weirder.
They live on an ice shelf for six months of the year and can’t fly, and massively modified skeletons, and, you know, compared to your average bird, penguins are unbelievably weird. So yeah, take an average dinosaur and take it to like penguin level or ostrich level or hummingbird level evolution. There’s going to be weirder stuff out there than we’ve found. Much weirder.
Lex Fridman
If you travel back in time, you probably, your mind will be probably blown by the weirdness.
If you travel back in time, you probably, your mind will be probably blown by the weirdness.
Dave Hone
Because those things are almost always in small, isolated places that don’t preserve fossils very well, and so the odds of us ever coming across them… I mean, you see it to a degree. So you’ve got the stuff that comes out of what is modern Hateg, which was a series of islands in the Mediterranean at the end of the Cretaceous, and some of the weirdest dinosaurs are from that chain of islands. And that’s not very isolated compared to, again, something like Hawaii or New Zealand. But it’s fitting the exact pattern. You get dinosaurs on islands, they turn weird. We see that. So again, dinosaurs were real animals. Again, sounds really painfully obvious, but they weren’t monsters.
Because those things are almost always in small, isolated places that don’t preserve fossils very well, and so the odds of us ever coming across them… I mean, you see it to a degree. So you’ve got the stuff that comes out of what is modern Hateg, which was a series of islands in the Mediterranean at the end of the Cretaceous, and some of the weirdest dinosaurs are from that chain of islands. And that’s not very isolated compared to, again, something like Hawaii or New Zealand. But it’s fitting the exact pattern. You get dinosaurs on islands, they turn weird. We see that. So again, dinosaurs were real animals. Again, sounds really painfully obvious, but they weren’t monsters.
Dave Hone
They followed the same… Rules might be pushing it, but certainly, like, guidelines. Ecology operates in certain ways. If you’re bigger, you need more food. But you’re more efficient. You just are. That’s pretty much just physics and scaling. So big dinosaurs are going to follow the rules of bigger animals, and small dinosaurs are going to follow the rules of smaller animals. They just will. Quite how they violate it in certain ways, by having unusually long necks or unusual physiology, or eating an unusual diet, or because there was a weird plant that was alive then that isn’t now, or whatever it may be. There’s obviously a huge amount of variation and uncertainty. But fundamentally, we know what makes animals and ecosystems work, and dinosaurs were animals in ecosystems.
They followed the same… Rules might be pushing it, but certainly, like, guidelines. Ecology operates in certain ways. If you’re bigger, you need more food. But you’re more efficient. You just are. That’s pretty much just physics and scaling. So big dinosaurs are going to follow the rules of bigger animals, and small dinosaurs are going to follow the rules of smaller animals. They just will. Quite how they violate it in certain ways, by having unusually long necks or unusual physiology, or eating an unusual diet, or because there was a weird plant that was alive then that isn’t now, or whatever it may be. There’s obviously a huge amount of variation and uncertainty. But fundamentally, we know what makes animals and ecosystems work, and dinosaurs were animals in ecosystems.
Dave Hone
They’re not that strange at some level, and therefore reconstructing their actual biology is challenging, but far from impossible.
They’re not that strange at some level, and therefore reconstructing their actual biology is challenging, but far from impossible.
Dragons
Lex Fridman
Strange question. So as everybody knows, dragons are obviously real.
Strange question. So as everybody knows, dragons are obviously real.
Dave Hone
I’ve been asked that on live TV before. Only not with the sarcastic tone, so-
I’ve been asked that on live TV before. Only not with the sarcastic tone, so-
Lex Fridman
Do you, do you dare disagree- … with this notion?
Do you, do you dare disagree- … with this notion?
Dave Hone
Yes. I, I do. They don’t.
Yes. I, I do. They don’t.
Lex Fridman
Well…
Well…
Dave Hone
And, and again, I d-
And, and again, I d-
Lex Fridman
They’re real to me, so…
They’re real to me, so…
Dave Hone
That’s fine. But again, you know, we kind of touched on it, but I think there’s probably very little of any kind of paleontological law that ended up in things like Chinese culture with the Chinese dragons and all of that stuff. You know, that one comes up repeatedly. The only one I do know of, again, from Alberta is buffalo stones that apparently some of the Native Americans had, which are actually bits of ammonites. So ammonites, they’re curly spiral-shelled cephalopods that are related to octopus and squid. So they have all these little segments to the shells, and the right species… And when they break open, they have, like, two little pairs of legs and then a bulge and then a little bulge, and it looks very roughly like a bison.
That’s fine. But again, you know, we kind of touched on it, but I think there’s probably very little of any kind of paleontological law that ended up in things like Chinese culture with the Chinese dragons and all of that stuff. You know, that one comes up repeatedly. The only one I do know of, again, from Alberta is buffalo stones that apparently some of the Native Americans had, which are actually bits of ammonites. So ammonites, they’re curly spiral-shelled cephalopods that are related to octopus and squid. So they have all these little segments to the shells, and the right species… And when they break open, they have, like, two little pairs of legs and then a bulge and then a little bulge, and it looks very roughly like a bison.
Dave Hone
And apparently these were thought to be somehow miniature bison. They’re very rare because, ironically, although the dinosaur bones are extremely common, it was very swampy and so you didn’t actually have a lot of sea coming in, so you didn’t tend to get things like ammonites and ocean-going animals. And then the shell would have to break in the right way. But apparently for the local tribes, like ǀSáptəṉilh, I don’t remember who it is in that bit of Canada… But yeah, these were quite valued, if you’ve got a buffalo stone. And I’ve seen a couple of them, and yeah, you have to squint a bit, but as a little buffalo, it’s not far off.
And apparently these were thought to be somehow miniature bison. They’re very rare because, ironically, although the dinosaur bones are extremely common, it was very swampy and so you didn’t actually have a lot of sea coming in, so you didn’t tend to get things like ammonites and ocean-going animals. And then the shell would have to break in the right way. But apparently for the local tribes, like ǀSáptəṉilh, I don’t remember who it is in that bit of Canada… But yeah, these were quite valued, if you’ve got a buffalo stone. And I’ve seen a couple of them, and yeah, you have to squint a bit, but as a little buffalo, it’s not far off.
Dave Hone
But yeah, but that whole, like, were they finding mammoth legs and were they finding T-rexes, and was this inspiration for this animal or this mystical animal? I, I don’t think they were, because you just don’t tend to find them like that.
But yeah, but that whole, like, were they finding mammoth legs and were they finding T-rexes, and was this inspiration for this animal or this mystical animal? I, I don’t think they were, because you just don’t tend to find them like that.
Lex Fridman
So where do you think…? You know, because dragons show up in a bunch of different myths.
So where do you think…? You know, because dragons show up in a bunch of different myths.
Dave Hone
Well, right. But that’s the thing, they turn up in British mythology and we’ve barely got any dinosaurs here at all. You, you only e- you only find them when you start digging for coal mines, which we weren’t doing in…
Well, right. But that’s the thing, they turn up in British mythology and we’ve barely got any dinosaurs here at all. You, you only e- you only find them when you start digging for coal mines, which we weren’t doing in…
Lex Fridman
Is it basically a dr- dramatization of like of snakes and lizards and stuff like this?
Is it basically a dr- dramatization of like of snakes and lizards and stuff like this?
Dave Hone
Yeah, and just general exaggeration and welding stuff together. I mean, that’s one thing you could, I guess, potentially argue is that, you know, yeah, we find tyrannosaurs in North America and in East Asia. In fact, there’s a whole bunch of stuff in the Early Cretaceous, which is often very common because it’s all relatively recent in the grand scheme of things in the history of the world. The fauna of East Asia, China, Mongolia, Eastern Russia, is very similar to what you get in Canada or in the USA and down in Mexico. And so you find the same rough stuff. They’re not exactly the same, but you get ceratopsians, you get tyrannosaurs, you get the big-edged archosaurs, you get ankylosaurs, the armored ones, this, that, and the other.
Yeah, and just general exaggeration and welding stuff together. I mean, that’s one thing you could, I guess, potentially argue is that, you know, yeah, we find tyrannosaurs in North America and in East Asia. In fact, there’s a whole bunch of stuff in the Early Cretaceous, which is often very common because it’s all relatively recent in the grand scheme of things in the history of the world. The fauna of East Asia, China, Mongolia, Eastern Russia, is very similar to what you get in Canada or in the USA and down in Mexico. And so you find the same rough stuff. They’re not exactly the same, but you get ceratopsians, you get tyrannosaurs, you get the big-edged archosaurs, you get ankylosaurs, the armored ones, this, that, and the other.
Dave Hone
So if these were influencing all those different cultures… …Why don’t Chinese dragons look like Mexican dragons or equivalent thunderbirds or whatever? Well, because it probably wasn’t influencing them. If they were all seeing the same skeleton, they’d probably all produce the same kind of mythical animals. They all produce… …Different ones.
So if these were influencing all those different cultures… …Why don’t Chinese dragons look like Mexican dragons or equivalent thunderbirds or whatever? Well, because it probably wasn’t influencing them. If they were all seeing the same skeleton, they’d probably all produce the same kind of mythical animals. They all produce… …Different ones.
Lex Fridman
You have to understand, paleontology’s not perfect, so they were just misinterpreting it.
You have to understand, paleontology’s not perfect, so they were just misinterpreting it.
Dave Hone
Misinterpreting, yeah.
Misinterpreting, yeah.
Lex Fridman
I mean, dragons aside, I’m sure, like we said with weirdness, there would be creatures that would be remarkable, right? That you look at it and you might as well be seeing a dragon. It could be… And I mean, there’s creatures alive in the sea today.
I mean, dragons aside, I’m sure, like we said with weirdness, there would be creatures that would be remarkable, right? That you look at it and you might as well be seeing a dragon. It could be… And I mean, there’s creatures alive in the sea today.
Dave Hone
Yeah, I mean, if you dredged up a colossal squid, I think you’d have… You know, or even just dugongs and manatees. I mean, they’re really quite strange.
Yeah, I mean, if you dredged up a colossal squid, I think you’d have… You know, or even just dugongs and manatees. I mean, they’re really quite strange.
Lex Fridman
And if you allow yourself to marvel at the small things on earth, like I was in the Amazon jungle, the insects, they’re just like, “What is…” …happening there? There’s so many things going on. Oh, they’re like hairy and colorful and probably poisonous and they have teeth and what… And they’re just… And they’re long and…
And if you allow yourself to marvel at the small things on earth, like I was in the Amazon jungle, the insects, they’re just like, “What is…” …happening there? There’s so many things going on. Oh, they’re like hairy and colorful and probably poisonous and they have teeth and what… And they’re just… And they’re long and…
Dave Hone
Well, and all the little weirdos. I’ve several times pitched a book to publishers where I want to write a book that basically makes the point that there is almost nothing… I mean, you can always dream up something totally ludicrous. There is basically nothing in science fiction that doesn’t already exist on Earth in some way, shape or form.
Well, and all the little weirdos. I’ve several times pitched a book to publishers where I want to write a book that basically makes the point that there is almost nothing… I mean, you can always dream up something totally ludicrous. There is basically nothing in science fiction that doesn’t already exist on Earth in some way, shape or form.
Lex Fridman
Yeah, that is why I’ll think about alien civilizations and aliens out there, and I’m very certain that there are aliens everywhere throughout the observable universe. It’s very strange we haven’t seen them, but it’s fun to marvel at what they possibly look like, because there’s a huge variety of organisms and species here on Earth, and you just expand that out… …To like more and more Earths, and you can just imagine there’s a lot of weird things.
Yeah, that is why I’ll think about alien civilizations and aliens out there, and I’m very certain that there are aliens everywhere throughout the observable universe. It’s very strange we haven’t seen them, but it’s fun to marvel at what they possibly look like, because there’s a huge variety of organisms and species here on Earth, and you just expand that out… …To like more and more Earths, and you can just imagine there’s a lot of weird things.
Dave Hone
Well, that’s the thing. I think most people, you know, understandably… I’m a biologist, and I particularly pride myself on finding out about particularly weird animals. But yeah, I think people would be stunned about some of the weird stuff that’s out there that they just wouldn’t realize are real. You know, things like velvet worms.
Well, that’s the thing. I think most people, you know, understandably… I’m a biologist, and I particularly pride myself on finding out about particularly weird animals. But yeah, I think people would be stunned about some of the weird stuff that’s out there that they just wouldn’t realize are real. You know, things like velvet worms.
Lex Fridman
Yeah.
Yeah.
Dave Hone
You know, it’s just… blow your mind. You know, sicilians and stuff like this and their reproductive behavior. It’s just jaw-dropping. I mean, I love teaching about them. I do a class on diversity of life and I do, now it’s about eight weeks of vertebrate diversity, and I love just dropping things in and the students are like, “What do you mean that exists? What do you mean? Something like that’s normal for this group?” Yeah. Yeah, they do that.
You know, it’s just… blow your mind. You know, sicilians and stuff like this and their reproductive behavior. It’s just jaw-dropping. I mean, I love teaching about them. I do a class on diversity of life and I do, now it’s about eight weeks of vertebrate diversity, and I love just dropping things in and the students are like, “What do you mean that exists? What do you mean? Something like that’s normal for this group?” Yeah. Yeah, they do that.
Lex Fridman
Well, from that class, but everything you’ve studied with the dinosaurs, what have you learned about the evolution of life on Earth, that mechanism?
Well, from that class, but everything you’ve studied with the dinosaurs, what have you learned about the evolution of life on Earth, that mechanism?
Dave Hone
It’s, it’s really good. It sounds obvious but it’s… I think the bit that still fries my brain is just like the raw numbers, because I think we’re very bad at considering… Like, I regularly talk about, “Oh, this is 70 million years old, but this is 78 and this is 104.” And people are just like, “Oh my God, how on Earth do you deal with those numbers?” And I don’t. They’re just numbers, because I can’t conceive of it really any better than you can. They are astronomical. Yeah, last Thursday was quite a long time ago.
It’s, it’s really good. It sounds obvious but it’s… I think the bit that still fries my brain is just like the raw numbers, because I think we’re very bad at considering… Like, I regularly talk about, “Oh, this is 70 million years old, but this is 78 and this is 104.” And people are just like, “Oh my God, how on Earth do you deal with those numbers?” And I don’t. They’re just numbers, because I can’t conceive of it really any better than you can. They are astronomical. Yeah, last Thursday was quite a long time ago.
Dave Hone
66 million years is mind-boggling. Like I, I, I can’t fathom it. But that’s it. I think the evolution thing is, A, my suspicion is quite a lot of it happens… It’s not quite Stephen Gould’s punctuated equilibrium, but I think stressful events probably prompt a lot more than less stressful events. You know, the, you know, population crashes and all these things that then… Odd things survive and then that’s changing your genetic component and all the rest of it. But you’ve just got to remember that it’s just… it’s almost a numbers game.
66 million years is mind-boggling. Like I, I, I can’t fathom it. But that’s it. I think the evolution thing is, A, my suspicion is quite a lot of it happens… It’s not quite Stephen Gould’s punctuated equilibrium, but I think stressful events probably prompt a lot more than less stressful events. You know, the, you know, population crashes and all these things that then… Odd things survive and then that’s changing your genetic component and all the rest of it. But you’ve just got to remember that it’s just… it’s almost a numbers game.
Dave Hone
You know, it’s that bad analogy of like, “Oh yeah, evolution is just rolling dice and hoping you get all sixes.” And it’s like, no, a friend of mine said, “No, it’s rolling dice but it gets to keep the sixes.” And then suddenly getting a hat full of sixes isn’t that hard, but also you’re in the context of even rare species, you know, ultra-rare, short of stuff that like we’ve nearly killed off but like very rare species have populations in the thousands or hundreds of thousands.
You know, it’s that bad analogy of like, “Oh yeah, evolution is just rolling dice and hoping you get all sixes.” And it’s like, no, a friend of mine said, “No, it’s rolling dice but it gets to keep the sixes.” And then suddenly getting a hat full of sixes isn’t that hard, but also you’re in the context of even rare species, you know, ultra-rare, short of stuff that like we’ve nearly killed off but like very rare species have populations in the thousands or hundreds of thousands.
Dave Hone
And are probably around for hundreds of thousands of years. And very few… you know, other than a few things like whales and apes and elephants, mostly have dozens or thousands of offspring at a time. So a few thousand animals that have a few thousand offspring aligned for a few hundred thousand years… Yeah, it’s billions and billions and billions of them. And that’s the rare stuff. You look at Mola mola, the ocean sunfish, though I think mola has just been split up into, like, five species. It’s one of the weirdest looking animals. It’s- love it. Love it, love it, love it. I mean, what a fish that is. Swims with a giant dorsal and I think it’s a giant anal fin, and then they flap alternatingly.
And are probably around for hundreds of thousands of years. And very few… you know, other than a few things like whales and apes and elephants, mostly have dozens or thousands of offspring at a time. So a few thousand animals that have a few thousand offspring aligned for a few hundred thousand years… Yeah, it’s billions and billions and billions of them. And that’s the rare stuff. You look at Mola mola, the ocean sunfish, though I think mola has just been split up into, like, five species. It’s one of the weirdest looking animals. It’s- love it. Love it, love it, love it. I mean, what a fish that is. Swims with a giant dorsal and I think it’s a giant anal fin, and then they flap alternatingly.
Lex Fridman
Does it have a face? Yeah.
Does it have a face? Yeah.
Dave Hone
Yeah, yeah, yeah. Little one at the front, ate jellyfish, super open-oceanic. And they get really big. You can see that one with the diver. But I think these are the record breeders for animals, and they have something like 100 million eggs at a time.
Yeah, yeah, yeah. Little one at the front, ate jellyfish, super open-oceanic. And they get really big. You can see that one with the diver. But I think these are the record breeders for animals, and they have something like 100 million eggs at a time.
Lex Fridman
Whoa.
Whoa.
Dave Hone
Don’t quote me on that, but it is something in those kinds of numbers. So yeah, that’s- you don’t need a very large population of sunfish to start having an awful lot of numbers. Are you going to Google it and see if you can find it? Number of eggs or something? Yeah. 300 million. Oh, I undercut it.
Don’t quote me on that, but it is something in those kinds of numbers. So yeah, that’s- you don’t need a very large population of sunfish to start having an awful lot of numbers. Are you going to Google it and see if you can find it? Number of eggs or something? Yeah. 300 million. Oh, I undercut it.
Lex Fridman
A- a single fe-
A- a single fe-
Dave Hone
…undercut it.
…undercut it.
Lex Fridman
A single female can release up to 300 million eggs at one time during a spawning event. Boy. These eggs are incredibly small, measuring about 1.3 millimeters in diameter.
A single female can release up to 300 million eggs at one time during a spawning event. Boy. These eggs are incredibly small, measuring about 1.3 millimeters in diameter.
Dave Hone
That’s still a lot of egg size-
That’s still a lot of egg size-
Lex Fridman
That’s still-
That’s still-
Dave Hone
… when- when you think about it.
… when- when you think about it.
Lex Fridman
It’s not that small.
It’s not that small.
Dave Hone
Yeah. Cr- 300 million of- of one mil is still quite a bit.
Yeah. Cr- 300 million of- of one mil is still quite a bit.
Lex Fridman
Fertilization is external.
Fertilization is external.
Dave Hone
Yeah, it’s-
Yeah, it’s-
Lex Fridman
Females release their eggs into the water, where males then fertilize them. Wow. Man, there’s a lot of different ways to have sex, I guess. This is…
Females release their eggs into the water, where males then fertilize them. Wow. Man, there’s a lot of different ways to have sex, I guess. This is…
Dave Hone
Yeah. But that’s the bit of evolution that I think… I understand why people don’t get it. We are mostly talking about millions in population times millions of years times thousands of offspring. Yeah. It’s kind of a numbers game. Well, how could this evolve? Well, the right selective pressure, and when you’ve got 100 billion offspring, probably a few of them have that.
Yeah. But that’s the bit of evolution that I think… I understand why people don’t get it. We are mostly talking about millions in population times millions of years times thousands of offspring. Yeah. It’s kind of a numbers game. Well, how could this evolve? Well, the right selective pressure, and when you’ve got 100 billion offspring, probably a few of them have that.
Lex Fridman
And when you focus in on a single species and trace its history, you can see how effective evolution is, natural selection is, and then you just have to, like, go across species and you’re gonna realize-
And when you focus in on a single species and trace its history, you can see how effective evolution is, natural selection is, and then you just have to, like, go across species and you’re gonna realize-
Dave Hone
Yeah, but it’s also a massive compromise, which is the bit that people always miss. You know, it’s Darwin’s line: “It’s descent with modification.” Yes, over time, you can end up with extraordinarily weird things, but mostly what’s happening is you’re changing something fairly simple. You’re making edits to the existing plan, which is why you don’t have animals with tentacles. They have legs, which have joints, which have fingers, and they all have one bone, then two bones, then a bunch of little blocky bones, and then a few more, and then the little ones that make up the digits for hands and feet, and basically everything has that.
Yeah, but it’s also a massive compromise, which is the bit that people always miss. You know, it’s Darwin’s line: “It’s descent with modification.” Yes, over time, you can end up with extraordinarily weird things, but mostly what’s happening is you’re changing something fairly simple. You’re making edits to the existing plan, which is why you don’t have animals with tentacles. They have legs, which have joints, which have fingers, and they all have one bone, then two bones, then a bunch of little blocky bones, and then a few more, and then the little ones that make up the digits for hands and feet, and basically everything has that.
Dave Hone
…because you’re modifying that pattern. And occasionally, you’ll get something weird, like most of the modern lungfish have basically reduced those down to—well, they had a more simple plan to begin with—but reduce it down to a stump, and then they’ve got something like a flail-y tentacle. But yeah, you know, snakes have gotten rid of them, all of the various legless lizards and things like that, and again, caecilians, and all the rest. But yet, you’re subtly changing certain things in certain ways is mostly what’s going on, and then those build up over time. But also, again, it’s that compromise of there’s things that do and don’t work. There’s things that are interlinked, and so you can’t modify A without modifying B.
…because you’re modifying that pattern. And occasionally, you’ll get something weird, like most of the modern lungfish have basically reduced those down to—well, they had a more simple plan to begin with—but reduce it down to a stump, and then they’ve got something like a flail-y tentacle. But yeah, you know, snakes have gotten rid of them, all of the various legless lizards and things like that, and again, caecilians, and all the rest. But yet, you’re subtly changing certain things in certain ways is mostly what’s going on, and then those build up over time. But also, again, it’s that compromise of there’s things that do and don’t work. There’s things that are interlinked, and so you can’t modify A without modifying B.
Dave Hone
Modifying A will kill you, therefore B never modifies, because the two are genetically linked in some way. Or yeah, like the compromise of the lion’s mane. Making it darker makes you sexier, but more likely to kill you. I think people think evolution is, like, perfecting things in some way. And they’re not. They’re bodge jobs, you know? That’s why we have a blind spot in our eye, but things like squid don’t.
Modifying A will kill you, therefore B never modifies, because the two are genetically linked in some way. Or yeah, like the compromise of the lion’s mane. Making it darker makes you sexier, but more likely to kill you. I think people think evolution is, like, perfecting things in some way. And they’re not. They’re bodge jobs, you know? That’s why we have a blind spot in our eye, but things like squid don’t.
Lex Fridman
But that process nevertheless does have inventions in it. You have Tiktaalik. You have a fish that learns to breathe, that crawls out.
But that process nevertheless does have inventions in it. You have Tiktaalik. You have a fish that learns to breathe, that crawls out.
Dave Hone
Yeah, but it already had a swim bladder that it was probably processing a minimal amount of oxygen through, and the swim bladder evolved for a certainly different function.
Yeah, but it already had a swim bladder that it was probably processing a minimal amount of oxygen through, and the swim bladder evolved for a certainly different function.
Lex Fridman
Yeah, but that’s one of the powerful things- … about uh- …evolution. It switches the function. It develops it for one function, but once you get there, you’re like, “Oh, okay, this could be used for another function,” that leads to something that we, in retrospect, can see as a major invention, which is— …a fish that’s able to crawl on land, and all of a sudden—
Yeah, but that’s one of the powerful things- … about uh- …evolution. It switches the function. It develops it for one function, but once you get there, you’re like, “Oh, okay, this could be used for another function,” that leads to something that we, in retrospect, can see as a major invention, which is— …a fish that’s able to crawl on land, and all of a sudden—
Dave Hone
Yep, absolutely.
Yep, absolutely.
Lex Fridman
…we have cities and… …And rockets. Tiktaalik specifically, there’s something really mind-boggling about a fish that crawls out of the sea, just the image of that.
…we have cities and… …And rockets. Tiktaalik specifically, there’s something really mind-boggling about a fish that crawls out of the sea, just the image of that.
Dave Hone
Yeah, but again, you’ve got stuff that’s not a million miles away from that. You have things like frogfish, which are fully marine, but kind of clamber through seaweed and stuff, and they’ve got pseudo-functional limbs. It’s again, because it’s that… Tiktaalik is not a weirdly derived frogfish, but it’s not like it’s a fish that suddenly came on land or a fish that suddenly evolved legs. There was already that selective pressure that was pushing it into a new opportunity, which gave it an… and then on and on and on, and that’s what keeps going.
Yeah, but again, you’ve got stuff that’s not a million miles away from that. You have things like frogfish, which are fully marine, but kind of clamber through seaweed and stuff, and they’ve got pseudo-functional limbs. It’s again, because it’s that… Tiktaalik is not a weirdly derived frogfish, but it’s not like it’s a fish that suddenly came on land or a fish that suddenly evolved legs. There was already that selective pressure that was pushing it into a new opportunity, which gave it an… and then on and on and on, and that’s what keeps going.
Dave Hone
But it also brings up another thing, going back to dinosaurs and the behavior stuff, which again, I think has been a problem, is the functionality thing, and how there’s always been, I think, this big perception of single traits having single functions, which isn’t how a huge amount of biology works. For some, yeah. Like, eyes are used for seeing. They don’t really do anything else. But I think there’s a lot of… again, it comes down to a lot of the sexual selection stuff, but things like horns on Triceratops. That’s probably quite good for fighting off predators, but it’s also quite good for fighting other Triceratops.
But it also brings up another thing, going back to dinosaurs and the behavior stuff, which again, I think has been a problem, is the functionality thing, and how there’s always been, I think, this big perception of single traits having single functions, which isn’t how a huge amount of biology works. For some, yeah. Like, eyes are used for seeing. They don’t really do anything else. But I think there’s a lot of… again, it comes down to a lot of the sexual selection stuff, but things like horns on Triceratops. That’s probably quite good for fighting off predators, but it’s also quite good for fighting other Triceratops.
Dave Hone
And then things like elephants dig with their tusks as well as fight other elephants, as well as fight lions, as well as stripping the bark off trees. So, you’ve got to be very careful about how you think of functionality in two different ways. One way is, what possible things could that thing do? And what possible things could have been the main selective pressure before? So, you think about elephant tusks. As I say, they do all these different things. But when an elephant’s just got the tiniest…
And then things like elephants dig with their tusks as well as fight other elephants, as well as fight lions, as well as stripping the bark off trees. So, you’ve got to be very careful about how you think of functionality in two different ways. One way is, what possible things could that thing do? And what possible things could have been the main selective pressure before? So, you think about elephant tusks. As I say, they do all these different things. But when an elephant’s just got the tiniest…
Dave Hone
…little nubs, like the first elephant whose teeth are growing the wrong way and have pushed out of its jaw, and now it’s got a couple of little spikes, it can’t really dig a hole with them. It’s certainly not digging for water. They’re probably not great against a predator, because you’d basically have to get on your knees to try and lean over and try and stab it a bit. But you can show off to the girls, and you can immediately find another elephant who’s head-to-head the same height as you, and you’ve got a massive advantage. So evolutionarily, they probably started as some kind of sexually selected feature.
…little nubs, like the first elephant whose teeth are growing the wrong way and have pushed out of its jaw, and now it’s got a couple of little spikes, it can’t really dig a hole with them. It’s certainly not digging for water. They’re probably not great against a predator, because you’d basically have to get on your knees to try and lean over and try and stab it a bit. But you can show off to the girls, and you can immediately find another elephant who’s head-to-head the same height as you, and you’ve got a massive advantage. So evolutionarily, they probably started as some kind of sexually selected feature.
Dave Hone
But now, functionally, they are probably compromised by the fact that having the best fighting tusks, but also having the tusks that are best at digging up water to keep you alive during a drought, is putting selective pressure on that.
But now, functionally, they are probably compromised by the fact that having the best fighting tusks, but also having the tusks that are best at digging up water to keep you alive during a drought, is putting selective pressure on that.
Dave Hone
And those are, are those selections, sexual selection appears in both ends. Those are two different things. Digging for water is critical, but it’s probably not what started it. And I think that’s where we get trapped with things like, say, the paddle tail of Spinosaurus or stuff like, or you know, or T-rex arms. It’s like, well, why are T-rex arms like that? Well, maybe we need to consider what a slightly longer arm is like or what it was being functioned for in its ancestors or how it works in other species or what else it might do, rather than every paper is like, “Did it do this,” or, “Did it do this,” or, “Did it do this?” It’s like, you know, it could be all of them. That’s…
And those are, are those selections, sexual selection appears in both ends. Those are two different things. Digging for water is critical, but it’s probably not what started it. And I think that’s where we get trapped with things like, say, the paddle tail of Spinosaurus or stuff like, or you know, or T-rex arms. It’s like, well, why are T-rex arms like that? Well, maybe we need to consider what a slightly longer arm is like or what it was being functioned for in its ancestors or how it works in other species or what else it might do, rather than every paper is like, “Did it do this,” or, “Did it do this,” or, “Did it do this?” It’s like, you know, it could be all of them. That’s…
Dave Hone
…a very different question to try and answer, but people don’t tend to think of it. And it ends up being very binary. And again, biology is not like that, because it’s a compromise.
…a very different question to try and answer, but people don’t tend to think of it. And it ends up being very binary. And again, biology is not like that, because it’s a compromise.
Lex Fridman
And it may be wiser to then look at the evolutionary origins, how it first sprung up.
And it may be wiser to then look at the evolutionary origins, how it first sprung up.
Dave Hone
Yeah, if you, yeah. You know, what does a miniaturized version of this look like, and what might that function for? Or, or how does it function in ancestral forms? You know, a really good example of that is giraffe necks, which have been argued about, you know, forever and a day it was, “Giraffe necks are to help them feed up high.” And then in the late ’90s, early 2000s, there’s a couple of papers coming out going, “Actually, maybe it’s sexual selection and competition.” And then that drove down into arguments about, “Well, what does a short neck look like? And the okapi is the nearest relative. And what do short legs look like, and how do they work?” And plus a whole bunch of other studies. And ultimately, it came out that we were right the first time.
Yeah, if you, yeah. You know, what does a miniaturized version of this look like, and what might that function for? Or, or how does it function in ancestral forms? You know, a really good example of that is giraffe necks, which have been argued about, you know, forever and a day it was, “Giraffe necks are to help them feed up high.” And then in the late ’90s, early 2000s, there’s a couple of papers coming out going, “Actually, maybe it’s sexual selection and competition.” And then that drove down into arguments about, “Well, what does a short neck look like? And the okapi is the nearest relative. And what do short legs look like, and how do they work?” And plus a whole bunch of other studies. And ultimately, it came out that we were right the first time.
Dave Hone
This is all about feeding. But it’s a really interesting way of thinking about it and looking at it.
This is all about feeding. But it’s a really interesting way of thinking about it and looking at it.
Birds are dinosaurs
Lex Fridman
Gotta ask you the ridiculous question. We do have dinosaurs here on Earth today. They’re birds.
Gotta ask you the ridiculous question. We do have dinosaurs here on Earth today. They’re birds.
Dave Hone
Yup. 10 and a half, 11,000 species of dinosaur.
Yup. 10 and a half, 11,000 species of dinosaur.
Lex Fridman
Are birds dinosaurs?
Are birds dinosaurs?
Dave Hone
Yes.
Yes.
Lex Fridman
Yeah, there’s not…
Yeah, there’s not…
Dave Hone
It’s, it’s-
It’s, it’s-
Lex Fridman
Wild?
Wild?
Dave Hone
It’s just a yes. Yeah, it’s-
It’s just a yes. Yeah, it’s-
Lex Fridman
How many people know this, by the way?
How many people know this, by the way?
Dave Hone
So there’s an interesting one. I did a radio show, oh, it’s probably seven or eight years ago now, with a couple of presenters, you know, drive time afternoon, nothing serious, nothing science or anything like that. And I mentioned something like this. And one presenter was, “Oh my God, what do you mean birds are dinosaurs?” And the other one is, “What do you mean you don’t know birds are dinosaurs?” So it’s hitting that tipping point of common knowledge, I think. Does everyone know? No. But I think an awful lot of people know and are now kind of used to it as an idea.
So there’s an interesting one. I did a radio show, oh, it’s probably seven or eight years ago now, with a couple of presenters, you know, drive time afternoon, nothing serious, nothing science or anything like that. And I mentioned something like this. And one presenter was, “Oh my God, what do you mean birds are dinosaurs?” And the other one is, “What do you mean you don’t know birds are dinosaurs?” So it’s hitting that tipping point of common knowledge, I think. Does everyone know? No. But I think an awful lot of people know and are now kind of used to it as an idea.
Lex Fridman
So what’s the evolutionary connection between birds and dinosaurs?
So what’s the evolutionary connection between birds and dinosaurs?
Dave Hone
I mean, they literally are, in the same way that we are apes and mammals. Birds are dinosaurs. The direct, if you trace back the evolution of all the birds, so hummingbirds and albatross and ostrich and kiwi and parrots and pelicans and penguins and whatever else, and take them down to their ancestral point, and then go back quite a few more million years, the nearest relatives to them is a dinosaur. It is actually something very close to Velociraptor, or at least a small version of Velociraptor. So birds have literally descended from dinosaurs, therefore they are dinosaurs. We have literally descended from other apes, we are apes. It is that form of evolutionary connection.
I mean, they literally are, in the same way that we are apes and mammals. Birds are dinosaurs. The direct, if you trace back the evolution of all the birds, so hummingbirds and albatross and ostrich and kiwi and parrots and pelicans and penguins and whatever else, and take them down to their ancestral point, and then go back quite a few more million years, the nearest relatives to them is a dinosaur. It is actually something very close to Velociraptor, or at least a small version of Velociraptor. So birds have literally descended from dinosaurs, therefore they are dinosaurs. We have literally descended from other apes, we are apes. It is that form of evolutionary connection.
Lex Fridman
Throughout that whole process, did they have feathers, or did feathers come and go?
Throughout that whole process, did they have feathers, or did feathers come and go?
Dave Hone
So feathers are in tyrannosaurs. So feathers go back at least… ironically, because the fossil record is very incomplete, most of the things that are closest to birds we know from the Early and Late Cretaceous, so the last kind of 50 million years of dinosaur evolution, up to the extinction. And actually, birds almost certainly go back another 50 million years. So birds did not appear as a result of the dinosaurs going extinct. Birds lived alongside the dinosaurs for 100 million years. The birds were not new on the scene, and it’s not like, “Oh, the dinosaurs died, and from the ashes rose the birds.” No, they’ve been knocking around forever.
So feathers are in tyrannosaurs. So feathers go back at least… ironically, because the fossil record is very incomplete, most of the things that are closest to birds we know from the Early and Late Cretaceous, so the last kind of 50 million years of dinosaur evolution, up to the extinction. And actually, birds almost certainly go back another 50 million years. So birds did not appear as a result of the dinosaurs going extinct. Birds lived alongside the dinosaurs for 100 million years. The birds were not new on the scene, and it’s not like, “Oh, the dinosaurs died, and from the ashes rose the birds.” No, they’ve been knocking around forever.
Lex Fridman
They just survived ’cause they’re small.
They just survived ’cause they’re small.
Dave Hone
In a very large part, yeah. That’s almost certainly what really helped them. Birds took a kicking in the KT extinction, so did mammals. Loads of bird lineages went extinct, and only a handful got over the line, but they did. But yeah, we have feathers in, as I said, we’ve got Middle Jurassic tyrannosaurs that are 165 million years old, so 100 million years before the extinction, that have feathers. Simple feathers, they’d be like those you get on most baby chicks, so they’re not with the big kind of classic pick up a feather in, you know, in the street or on a field of the big vein up the middle and then the kind of paired flat pieces. This would be much more like a hare. But we have them.
In a very large part, yeah. That’s almost certainly what really helped them. Birds took a kicking in the KT extinction, so did mammals. Loads of bird lineages went extinct, and only a handful got over the line, but they did. But yeah, we have feathers in, as I said, we’ve got Middle Jurassic tyrannosaurs that are 165 million years old, so 100 million years before the extinction, that have feathers. Simple feathers, they’d be like those you get on most baby chicks, so they’re not with the big kind of classic pick up a feather in, you know, in the street or on a field of the big vein up the middle and then the kind of paired flat pieces. This would be much more like a hare. But we have them.
Dave Hone
We’ve got something which is very close to a bird but might not quite be a bird, with modern feathers. In the Middle Jurassic, we’ve got definitive stuff like Archaeopteryx in the Late Jurassic, and then into the Early Cretaceous we have a series of fossil beds in China which are just heaving with them. So yeah, tyrannosaurs have feathers. Velociraptor and the Dromaeosaurs had feathers. Troodontids had feathers. Ornithomimosaurs, we’ve mentioned, they had feathers, and so did a whole bunch of other groups as well. There’s about eight or nine major groups, kind of the size of something like, yeah, literally like carnivores or deers. You know, some massive groups. About eight or nine of them were fully feathered, as far as we can tell.
We’ve got something which is very close to a bird but might not quite be a bird, with modern feathers. In the Middle Jurassic, we’ve got definitive stuff like Archaeopteryx in the Late Jurassic, and then into the Early Cretaceous we have a series of fossil beds in China which are just heaving with them. So yeah, tyrannosaurs have feathers. Velociraptor and the Dromaeosaurs had feathers. Troodontids had feathers. Ornithomimosaurs, we’ve mentioned, they had feathers, and so did a whole bunch of other groups as well. There’s about eight or nine major groups, kind of the size of something like, yeah, literally like carnivores or deers. You know, some massive groups. About eight or nine of them were fully feathered, as far as we can tell.
Dave Hone
So feathers massively predate bird origins, but it was a major part of their evolution.
So feathers massively predate bird origins, but it was a major part of their evolution.
Lex Fridman
Do I understand why feathers evolved with the function, the sexual selection, the signaling?
Do I understand why feathers evolved with the function, the sexual selection, the signaling?
Dave Hone
Yeah, it’s probably a fundamental twofold one, which is feathers insulate you. They keep you warm. And most dinosaurs were, it’s an archaic term, but it’s what most people know, warm-blooded. So they were much more like us and birds. They had a stable high body temperature regardless of the environmental conditions. And so if you’re burning a lot of calories to stay warm, you want to kind of keep that heat, and feathers really help you do that. And then the other thing is, yeah, the obvious thing is sexual selection and communication. Feathers do stuff that scales can’t. You can shed them in winter and change color and come back as another one. That’s quite a handy trick. You can change them between juveniles and adults.
Yeah, it’s probably a fundamental twofold one, which is feathers insulate you. They keep you warm. And most dinosaurs were, it’s an archaic term, but it’s what most people know, warm-blooded. So they were much more like us and birds. They had a stable high body temperature regardless of the environmental conditions. And so if you’re burning a lot of calories to stay warm, you want to kind of keep that heat, and feathers really help you do that. And then the other thing is, yeah, the obvious thing is sexual selection and communication. Feathers do stuff that scales can’t. You can shed them in winter and change color and come back as another one. That’s quite a handy trick. You can change them between juveniles and adults.
Dave Hone
So baby birds have one type of feather, adults have a different one. We know of dinosaurs that do that, where we’ve got adults and juveniles with different feather types preserved in the fossils. Yeah, you can produce all kinds of weird colors and displays. You can erect feathers. You can hold them up and fan them out like a peacock or a pheasant. Whereas scales, you can’t really do that, or you need a huge amount of bone like Protoceratops. So there’s two good reasons that they would probably evolve, and exactly pulling them apart or which is more important. And again-
So baby birds have one type of feather, adults have a different one. We know of dinosaurs that do that, where we’ve got adults and juveniles with different feather types preserved in the fossils. Yeah, you can produce all kinds of weird colors and displays. You can erect feathers. You can hold them up and fan them out like a peacock or a pheasant. Whereas scales, you can’t really do that, or you need a huge amount of bone like Protoceratops. So there’s two good reasons that they would probably evolve, and exactly pulling them apart or which is more important. And again-
Dave Hone
They’re probably bifunctional. As soon as you start making feathers and making them more colorful, well, you’re staying warmer. So that’s an advantage. Or as soon as you start making feathers to make them warmer, it probably won’t be long until someone evolves them to be a bit brighter red. And then we’re back to, “Oh my God, red.” Right? But, but that’s what’s happening. And then they’re probably going to push each other potentially.
They’re probably bifunctional. As soon as you start making feathers and making them more colorful, well, you’re staying warmer. So that’s an advantage. Or as soon as you start making feathers to make them warmer, it probably won’t be long until someone evolves them to be a bit brighter red. And then we’re back to, “Oh my God, red.” Right? But, but that’s what’s happening. And then they’re probably going to push each other potentially.
Lex Fridman
I mean, it is true that the birds went real crazy with the feather and the colors and the prettiness and all that.
I mean, it is true that the birds went real crazy with the feather and the colors and the prettiness and all that.
Dave Hone
Yeah, yeah, yeah. They absolutely do.
Yeah, yeah, yeah. They absolutely do.
Lex Fridman
Maybe there’s something about feathers that allows for that efficient sort of diversification of fashion.
Maybe there’s something about feathers that allows for that efficient sort of diversification of fashion.
Dave Hone
I think, yeah, I think it gives them opportunities that… …Scales and solid structures simply don’t. The…
I think, yeah, I think it gives them opportunities that… …Scales and solid structures simply don’t. The…
Lex Fridman
Yeah, it could be a material for it.
Yeah, it could be a material for it.
Dave Hone
…the sole ability. I mean, I say like, you know, peacocks and pheasants, they are at a massive disadvantage. The males have got these extra plumes on because they’re so big and heavy. Peacocks can barely fly. But the fact is, you can still kind of fold them up into a fairly neat package and kind of hide if you really wanted to. Whereas if you’re something like Triceratops, that billboard on the top of your head is not only enormous, but also bone. It’s massive, it’s heavy, and you’ve got to-
…the sole ability. I mean, I say like, you know, peacocks and pheasants, they are at a massive disadvantage. The males have got these extra plumes on because they’re so big and heavy. Peacocks can barely fly. But the fact is, you can still kind of fold them up into a fairly neat package and kind of hide if you really wanted to. Whereas if you’re something like Triceratops, that billboard on the top of your head is not only enormous, but also bone. It’s massive, it’s heavy, and you’ve got to-
Lex Fridman
No hiding.
No hiding.
Dave Hone
…hide it around the whole year. Whereas peacocks at least can go, “Well, all the girls have settled down on their nests now. I’m just going to get rid of all this extra weight and dump it.”
…hide it around the whole year. Whereas peacocks at least can go, “Well, all the girls have settled down on their nests now. I’m just going to get rid of all this extra weight and dump it.”
Lex Fridman
Just looking at the entire history of Earth, what has studying hundreds of millions of years of evolution, studying this epic age of the dinosaurs, what has that done for your appreciation of what makes Earth beautiful? Do you ever just sit back and like, “Holy shit, this is incredible, this whole thing”?
Just looking at the entire history of Earth, what has studying hundreds of millions of years of evolution, studying this epic age of the dinosaurs, what has that done for your appreciation of what makes Earth beautiful? Do you ever just sit back and like, “Holy shit, this is incredible, this whole thing”?
Dave Hone
Yeah, yeah, I, I do. But I guess maybe not much more so than I would anyway. As in, I already… because again, I don’t really think of myself as a paleontologist in a lot of ways. It’s not that I don’t love my work, but it’s, I’m a biologist and this is what I’m looking at. But I’m fascinated and amazed by lungfish and flying frogs and caterpillars and onychophorans and butterflies and a million and one other hagfish and things that I think are cool and interesting and fascinating, and I could happily read about them or watch them in a zoo or a documentary or whatever it may be, almost every bit as much as I would with dinosaurs.
Yeah, yeah, I, I do. But I guess maybe not much more so than I would anyway. As in, I already… because again, I don’t really think of myself as a paleontologist in a lot of ways. It’s not that I don’t love my work, but it’s, I’m a biologist and this is what I’m looking at. But I’m fascinated and amazed by lungfish and flying frogs and caterpillars and onychophorans and butterflies and a million and one other hagfish and things that I think are cool and interesting and fascinating, and I could happily read about them or watch them in a zoo or a documentary or whatever it may be, almost every bit as much as I would with dinosaurs.
Dave Hone
I probably appreciate the dinosaurs and pterosaurs in a very different way because I have such a greater intimate knowledge of the science, in a way that I try and read the lion literature because I’m really interested in predation dynamics, but I can’t keep up with it whilst doing all the other stuff as well.
I probably appreciate the dinosaurs and pterosaurs in a very different way because I have such a greater intimate knowledge of the science, in a way that I try and read the lion literature because I’m really interested in predation dynamics, but I can’t keep up with it whilst doing all the other stuff as well.
Lex Fridman
Predation dynamics. Awesome.
Predation dynamics. Awesome.
Dave Hone
Well, right, so like the difference of, what prey are they taking? Why? At what percentage? What influences? How are they competing with leopards and…
Well, right, so like the difference of, what prey are they taking? Why? At what percentage? What influences? How are they competing with leopards and…
Lex Fridman
Wait, there’s a literature, body of literature on this? All right.
Wait, there’s a literature, body of literature on this? All right.
Dave Hone
Yeah, people are studying lions and what they hunt, what they eat, and where they do it. There’s a whole bunch of stuff on particularly the African carnivores because there’s so many of them and they’re so big, and their populations aren’t terrible compared to South America or North America or a lot of Asia, for example. But going back to your question, yeah, I can appreciate all of it. It’s all cool. Some of it is definitely more awesome than others. I work on some of the giant pterosaurs, the ones with 10-meter wingspans.
Yeah, people are studying lions and what they hunt, what they eat, and where they do it. There’s a whole bunch of stuff on particularly the African carnivores because there’s so many of them and they’re so big, and their populations aren’t terrible compared to South America or North America or a lot of Asia, for example. But going back to your question, yeah, I can appreciate all of it. It’s all cool. Some of it is definitely more awesome than others. I work on some of the giant pterosaurs, the ones with 10-meter wingspans.
Dave Hone
Yeah, and it’s hard. My partner’s family’s from Uganda, and we were in Uganda last year. I was watching marabou storks circle overhead and you’re like, “Wow, these things are huge and amazing.” And then I’m like, “Their wingspan’s about a fifth of the stuff I work on.” Actually, these are quite piddly in the grand scheme. You know, this thing being like an airliner going overhead. And when you think about it in that context, yeah, I mean, because that’s it with the… I know people tend to be obsessed with size, and you kind of get it. Blue whales are…
Yeah, and it’s hard. My partner’s family’s from Uganda, and we were in Uganda last year. I was watching marabou storks circle overhead and you’re like, “Wow, these things are huge and amazing.” And then I’m like, “Their wingspan’s about a fifth of the stuff I work on.” Actually, these are quite piddly in the grand scheme. You know, this thing being like an airliner going overhead. And when you think about it in that context, yeah, I mean, because that’s it with the… I know people tend to be obsessed with size, and you kind of get it. Blue whales are…
Dave Hone
…fundamentally cooler than smaller humpback whales, even if humpback whales are cool. It’s hard not to be impressed by Patagotitan or Tyrannosaurus or Triceratops or Quetzalcoatlus or any of these ultimate giants. There’s a reason we love great white sharks. There’s a reason we love giant squid. There’s a reason we love lions and grizzly bears and stuff. But the dinosaurs do kind of do it better than anyone else, you know, and the marine reptiles and the flying reptiles, because it’s just so insane.
…fundamentally cooler than smaller humpback whales, even if humpback whales are cool. It’s hard not to be impressed by Patagotitan or Tyrannosaurus or Triceratops or Quetzalcoatlus or any of these ultimate giants. There’s a reason we love great white sharks. There’s a reason we love giant squid. There’s a reason we love lions and grizzly bears and stuff. But the dinosaurs do kind of do it better than anyone else, you know, and the marine reptiles and the flying reptiles, because it’s just so insane.
Lex Fridman
Yeah, both size and diversity.
Yeah, both size and diversity.
Dave Hone
Yeah, and longevity as well. I mean, you look at, you know, elephants have come and gone and, you know, the whales, okay, the whales have reached superlative sizes, but they’re relatively new on the scene. Could easily have gone extinct in the last century. But yeah, you know, there’s truly titanic dinosaurs for at least 100 million years.
Yeah, and longevity as well. I mean, you look at, you know, elephants have come and gone and, you know, the whales, okay, the whales have reached superlative sizes, but they’re relatively new on the scene. Could easily have gone extinct in the last century. But yeah, you know, there’s truly titanic dinosaurs for at least 100 million years.
Lex Fridman
It’s a long time. It’s hard sometimes, and as you said, it’s very hard to load in just how long that is. They really dominated Earth for a very long time.
It’s a long time. It’s hard sometimes, and as you said, it’s very hard to load in just how long that is. They really dominated Earth for a very long time.
Dave Hone
Yeah, and almost absolutely everywhere. There’s a handful of places that we’ve found where it appears that dinosaurs didn’t really get in and something else kind of took over, you know, like Australia with the marsupials versus the other eutherians. But yeah, fundamentally, it was a dinosaur planet after the Triassic, less so at the end of the Triassic when they’re first getting going, but Jurassic and Cretaceous, yeah, it’s 140-ish million years of just absolute dominance.
Yeah, and almost absolutely everywhere. There’s a handful of places that we’ve found where it appears that dinosaurs didn’t really get in and something else kind of took over, you know, like Australia with the marsupials versus the other eutherians. But yeah, fundamentally, it was a dinosaur planet after the Triassic, less so at the end of the Triassic when they’re first getting going, but Jurassic and Cretaceous, yeah, it’s 140-ish million years of just absolute dominance.
Future of paleontology
Lex Fridman
I think it’s hilarious and just perfect that there’s a giant dinosaur head next to you, and you didn’t mention it once during this conversation.
I think it’s hilarious and just perfect that there’s a giant dinosaur head next to you, and you didn’t mention it once during this conversation.
Dave Hone
Yeah, sure, yeah. Because I thought, I thought we’d get it. Well, I mean, giant is an absolute diddy one. So this is Protoceratops andrewsi, and I’ve done loads of work on Protoceratops. It’s from Mongolia. This is a latest sized juvenile, so I’ve got a big head, and the big head’s kind of like this, but I really couldn’t fit it in the bag.
Yeah, sure, yeah. Because I thought, I thought we’d get it. Well, I mean, giant is an absolute diddy one. So this is Protoceratops andrewsi, and I’ve done loads of work on Protoceratops. It’s from Mongolia. This is a latest sized juvenile, so I’ve got a big head, and the big head’s kind of like this, but I really couldn’t fit it in the bag.
Lex Fridman
So this is a to-scale juvenile.
So this is a to-scale juvenile.
Dave Hone
This is a cast. So this is not, this is not original, but someone has molded and copied it. So it’s not even, it’s not carved, it’s a cast and a mold taken. So yeah, this is 100% accurate to the original specimen, or at least extraordinarily accurate to the original specimen.
This is a cast. So this is not, this is not original, but someone has molded and copied it. So it’s not even, it’s not carved, it’s a cast and a mold taken. So yeah, this is 100% accurate to the original specimen, or at least extraordinarily accurate to the original specimen.
Lex Fridman
So it’s a young guy.
So it’s a young guy.
Dave Hone
Yeah. But yeah, I mean, at full size, it’s going to be like pig or sheep size, so big but not massive. But I’ve got it partly because it’s affordable, because I can’t afford to buy the big skeletons and skulls. But I’ve done a huge amount of work on it, and in part it goes back to those earlier conversations about populations. If you really want to understand animals, you need an understanding of what a real population and a growth of what these animals looks like. And Protoceratops is, I would argue, probably the only dinosaur where we can really do that, or at least as close as possible as you could get to any modern animal as an analog. We’ve got well over 100 good skeletons, though not…
Yeah. But yeah, I mean, at full size, it’s going to be like pig or sheep size, so big but not massive. But I’ve got it partly because it’s affordable, because I can’t afford to buy the big skeletons and skulls. But I’ve done a huge amount of work on it, and in part it goes back to those earlier conversations about populations. If you really want to understand animals, you need an understanding of what a real population and a growth of what these animals looks like. And Protoceratops is, I would argue, probably the only dinosaur where we can really do that, or at least as close as possible as you could get to any modern animal as an analog. We’ve got well over 100 good skeletons, though not…
Dave Hone
Probably only about 70 or 80 in really accessible museums, but that’s still a hell of a lot. We have everything from here’s a tiny baby one. This is a really cheap and nasty 3D print I had made, but that’s a hatchling sized one or not much bigger than a hatchling sized one, all the way up to the big adults. We’ve now got embryos as well, which we didn’t have until about 10 years ago. So we’ve got embryonic animals all the way up to big adults. They’re all pretty much from one place in Mongolia. And they are, as far as we can tell, from a relatively narrow window in time, only about 100,000 years, which in the grand scheme of things is very close. So you’ve got one population from one place, from one time with 100 animals from embryos up to big adults.
Probably only about 70 or 80 in really accessible museums, but that’s still a hell of a lot. We have everything from here’s a tiny baby one. This is a really cheap and nasty 3D print I had made, but that’s a hatchling sized one or not much bigger than a hatchling sized one, all the way up to the big adults. We’ve now got embryos as well, which we didn’t have until about 10 years ago. So we’ve got embryonic animals all the way up to big adults. They’re all pretty much from one place in Mongolia. And they are, as far as we can tell, from a relatively narrow window in time, only about 100,000 years, which in the grand scheme of things is very close. So you’ve got one population from one place, from one time with 100 animals from embryos up to big adults.
Lex Fridman
That’s okay.
That’s okay.
Dave Hone
So now if you want to look at, as I do, something like sexual selection and when does growth of the signal kick in and at what size and what evidence for dimorphism, well, suddenly you’ve got a population. You’ve got something you can work with. And that’s why Protoceratops is so important, and I think way more important than even a lot of my fellow paleontologists realize, and I genuinely think we should be pouring a lot more research into them, because they can tell us stuff that pretty much no other dinosaur can.
So now if you want to look at, as I do, something like sexual selection and when does growth of the signal kick in and at what size and what evidence for dimorphism, well, suddenly you’ve got a population. You’ve got something you can work with. And that’s why Protoceratops is so important, and I think way more important than even a lot of my fellow paleontologists realize, and I genuinely think we should be pouring a lot more research into them, because they can tell us stuff that pretty much no other dinosaur can.
Lex Fridman
Because you have the population data, so you can… …You can ask them a lot more questions.
Because you have the population data, so you can… …You can ask them a lot more questions.
Dave Hone
And we can treat it as a population. So going way, way back to a conversation about telling males and females apart, and I said the big problem is population data, or at least the number of specimens that you have when mostly you’ve only got one, two, or three. I did a big study on this a few years ago on gharials, the really long-snouted crocodilians from Nepal, India, and Pakistan with a giant bulge on the end of the nose. And even though the males are all bigger than the females, and the males all have this weird nose growth that’s mostly soft tissue, but they have a weird depression in the jaw, in the end of the snout where the nostrils sit.
And we can treat it as a population. So going way, way back to a conversation about telling males and females apart, and I said the big problem is population data, or at least the number of specimens that you have when mostly you’ve only got one, two, or three. I did a big study on this a few years ago on gharials, the really long-snouted crocodilians from Nepal, India, and Pakistan with a giant bulge on the end of the nose. And even though the males are all bigger than the females, and the males all have this weird nose growth that’s mostly soft tissue, but they have a weird depression in the jaw, in the end of the snout where the nostrils sit.
Dave Hone
We got a sample size of something like about 110 animals, so these are very, very rare animals, so we had to ransack every museum worldwide. I was sending my students sending emails to huge numbers of people, “Have you got one sitting in your collection lost? Can you get it for us? Can you take these photos or these measurements? We can measure it.” We put the dataset together, and then we found that actually, apart from the very biggest males, it’s really hard to tell males and females apart, and this actually really closely matched some modeling data that I’d done with a colleague, Jordan Mallon in Ottawa looking at this for alligators and trying to compare it to dinosaurs.
We got a sample size of something like about 110 animals, so these are very, very rare animals, so we had to ransack every museum worldwide. I was sending my students sending emails to huge numbers of people, “Have you got one sitting in your collection lost? Can you get it for us? Can you take these photos or these measurements? We can measure it.” We put the dataset together, and then we found that actually, apart from the very biggest males, it’s really hard to tell males and females apart, and this actually really closely matched some modeling data that I’d done with a colleague, Jordan Mallon in Ottawa looking at this for alligators and trying to compare it to dinosaurs.
Dave Hone
Because though we talked about mutual sexual selection before, neutral sexual selection in particular, you tend to get things that are extremely similar. Males and females are very hard to tell apart. But there’s also a gradient, you know, all the way up to things like peacocks, all the way down to you can’t tell them apart, like parrots. And for some features, when they take time to get growing, or because dinosaurs grow over a very long window and are sexually mature over a very long window, you run into the problem that a big female will look like a small male.
Because though we talked about mutual sexual selection before, neutral sexual selection in particular, you tend to get things that are extremely similar. Males and females are very hard to tell apart. But there’s also a gradient, you know, all the way up to things like peacocks, all the way down to you can’t tell them apart, like parrots. And for some features, when they take time to get growing, or because dinosaurs grow over a very long window and are sexually mature over a very long window, you run into the problem that a big female will look like a small male.
Dave Hone
And we can’t sex them. And lo and behold, this is what you get with the gharials. The really big males are obvious because they’re so much bigger and they’ve got this big depression in the snout. But medium-sized and big females look like medium-size or smaller males and very small males. And so, yeah, that’s basically what we have with dinosaurs. Even with Protoceratops, where we’ve got a dataset of like a hundred, papers have come out saying there’s very mild sexual dimorphism or there isn’t sexual dimorphism. Sexual dimorphism could be very strong in Protoceratops, but we can’t find it because we can’t tell the males from the females because we haven’t ID’d enough through something like medullary bone.
And we can’t sex them. And lo and behold, this is what you get with the gharials. The really big males are obvious because they’re so much bigger and they’ve got this big depression in the snout. But medium-sized and big females look like medium-size or smaller males and very small males. And so, yeah, that’s basically what we have with dinosaurs. Even with Protoceratops, where we’ve got a dataset of like a hundred, papers have come out saying there’s very mild sexual dimorphism or there isn’t sexual dimorphism. Sexual dimorphism could be very strong in Protoceratops, but we can’t find it because we can’t tell the males from the females because we haven’t ID’d enough through something like medullary bone.
Dave Hone
And so you’re in this horrible situation where, because going back to the T-Rex thing, it’s like, “Well, maybe it’s mutual sexual selection, and therefore they’re cooperating,” and that would be cool. But also, maybe males are much bigger, but we can’t tell because our dataset’s too small.
And so you’re in this horrible situation where, because going back to the T-Rex thing, it’s like, “Well, maybe it’s mutual sexual selection, and therefore they’re cooperating,” and that would be cool. But also, maybe males are much bigger, but we can’t tell because our dataset’s too small.
Lex Fridman
Oh, that’s frustrating.
Oh, that’s frustrating.
Dave Hone
In which case, they’re not under mutual sexual selection, and we’ve got it all wrong. It’s maddening! It’s maddening because it’s so… If these were living animals, you’d just watch them, or you’d just genotype them, or you’d sex them, and you’d just know. And we just don’t. But on the other hand, we do have the mechanism to do it. There are a handful of places where you get a bunch of Protoceratops together, where it’s a mass mortality site. Well, let’s go and drill every bone, because if that’s the breeding season, we might find seven or eight females, and then the others are pretty much by default males if we know it’s the middle of the breeding season because all the others have medullary bone, and now you know where your male/female split is.
In which case, they’re not under mutual sexual selection, and we’ve got it all wrong. It’s maddening! It’s maddening because it’s so… If these were living animals, you’d just watch them, or you’d just genotype them, or you’d sex them, and you’d just know. And we just don’t. But on the other hand, we do have the mechanism to do it. There are a handful of places where you get a bunch of Protoceratops together, where it’s a mass mortality site. Well, let’s go and drill every bone, because if that’s the breeding season, we might find seven or eight females, and then the others are pretty much by default males if we know it’s the middle of the breeding season because all the others have medullary bone, and now you know where your male/female split is.
Dave Hone
Now let’s analyze those two datasets, and then maybe we’ll see a difference, and maybe we won’t.
Now let’s analyze those two datasets, and then maybe we’ll see a difference, and maybe we won’t.
Lex Fridman
Yeah, I love how that frustration is sort of a catalyst for figuring out. You’re searching for a place, a piece of evidence that just shows you clearly.
Yeah, I love how that frustration is sort of a catalyst for figuring out. You’re searching for a place, a piece of evidence that just shows you clearly.
Dave Hone
There are ways in.
There are ways in.
Lex Fridman
Yeah, there’s ways in.
Yeah, there’s ways in.
Dave Hone
This is the thing.
This is the thing.
Lex Fridman
There’s always ways in.
There’s always ways in.
Dave Hone
Yeah, there are, there are ways in, and maybe we’ve got to get lucky because maybe it’s not the breeding season or maybe that was just happened to be a group of all males, and therefore we’re not going to get the signal we’re looking for. But there’s enough of them, and they’re common enough, and yet, still digging in Mongolia. We keep finding new species. We keep finding new cooler stuff. But I’m like, “Can we, can we dig up some more Protoceratops?” Because actually, however cool these new things are, genuinely if you want to know what dinosaurs are and how they worked, another hundred Protoceratops will actually probably tell us a lot more than 50 new species, however cool 50 new species might be.
Yeah, there are, there are ways in, and maybe we’ve got to get lucky because maybe it’s not the breeding season or maybe that was just happened to be a group of all males, and therefore we’re not going to get the signal we’re looking for. But there’s enough of them, and they’re common enough, and yet, still digging in Mongolia. We keep finding new species. We keep finding new cooler stuff. But I’m like, “Can we, can we dig up some more Protoceratops?” Because actually, however cool these new things are, genuinely if you want to know what dinosaurs are and how they worked, another hundred Protoceratops will actually probably tell us a lot more than 50 new species, however cool 50 new species might be.
Lex Fridman
Paleontology is an incredible discipline. It really is Sherlock Holmes territory, so this was an incredible conversation. I’m really grateful for all the work you write, that you put out there, the podcast is incredible. I just, thank you. Thank you for being you and thank you for talking today.
Paleontology is an incredible discipline. It really is Sherlock Holmes territory, so this was an incredible conversation. I’m really grateful for all the work you write, that you put out there, the podcast is incredible. I just, thank you. Thank you for being you and thank you for talking today.
Dave Hone
Thank you. Well, thank you very much for having me. I hope I haven’t worn out my welcome with dinosaur stories.
Thank you. Well, thank you very much for having me. I hope I haven’t worn out my welcome with dinosaur stories.
Lex Fridman
Oh, we could talk for many more hours. Thank you, brother. Thank you, Dave. Thank you.
Oh, we could talk for many more hours. Thank you, brother. Thank you, Dave. Thank you.
Dave Hone
Thank you.
Thank you.
Lex Fridman
Thank you for listening to this conversation with Dave Hone. To support this podcast, please check out our sponsors in the description and consider subscribing to this channel. And now, let me leave with some words from Carl Sagan, “Extinction is the rule. Survival is the exception.” Thank you for listening. I hope to see you next time.
Thank you for listening to this conversation with Dave Hone. To support this podcast, please check out our sponsors in the description and consider subscribing to this channel. And now, let me leave with some words from Carl Sagan, “Extinction is the rule. Survival is the exception.” Thank you for listening. I hope to see you next time.
Scott Horton Links and Notes
The following are supplemental links, notes, and corrections for podcast episode with Scott Horton provided by Scott.
Supplemental Links
Scott provided the following supplemental links for the episode.
- From the Cold War to the War on Terror
- Daniel Ellsberg Secrets Chapter 1 The Tonkin Gulf: August 1964 – The Scott Horton Show
- From the Shadows: The Ultimate Insider’s Story of Five Presidents and How They Won the Cold War (CIA Secrets for History Buffs) by Robert Gates
- America’s ‘Crack’ Plague has Roots in Nicaragua War by Gary Webb August 18, 1996 – The Scott Horton Show
- Shadowy Origins of ‘Crack’ Epidemic by Gary Webb August 19, 1996 – The Scott Horton Show
- War on Drugs has Unequal Impact on Black Americans by Gary Webb August 20, 1996 – The Scott Horton Show
- Iraq War 1
- Bin Laden
- A CASE NOT CLOSED | The New Yorker
- Indyk Nomination a Puzzler for Helms
- The Party and the Deep Blue Sea – The Scott Horton Show
- Osama Bin Laden’s Prodigal Son: Omar bin Laden’s Twisted Journey
- Taliban: Militant Islam, Oil and Fundamentalism in Central Asia by Ahmed Rashid
- Showstoppers – Washington Examiner
- Afghanistan War
- Iraq War 2
- Scott Horton’s X thread: How the neoconservatives lied us into war with Iraq 20 years ago, a thread of the very best articles on it.
- Behind Diplomacy, Military Plan Set in Motion – The Washington Post
- White Man’s Burden – Haaretz Com – Haaretz.com
- Bush Advisor: US Invaded Iraq to Protect Israel | Democracy Now!
- Peter Bergen is Mistaken About Bin Laden’s Strategy – Antiwar.com
- Military Industrial Complex
- Scott’s life story
- Iraq War 2 (continued)
- Sharon Says U.S. Should Also Disarm Iran, Libya and Syria – Haaretz Com – Haaretz.com
- THE STRUGGLE FOR IRAQ: DIPLOMACY; Iraq Said to Have Tried to Reach Last-Minute Deal to Avert War – The New York Times
- Saddam’s desperate offers to stave off war | The Guardian
- Lunch With the Chairman | The New Yorker
- Dick Cheney and the ‘Great Game’ – The Washington Post
- Iran’s ‘Golden Offer’ of 2003 – The Scott Horton Show
- Golden Platter | WikiLeaks – Cable: 06RIYADH7_a
- Syria
- Iraq War 3
- Somalia
- Iran
- Israel-Palestine
- Cold War 2.0
List of Corrections
Scott requested the following corrections to be added on-screen. They were. They are provided here for reference.
YouTube Timestamps:
- 54:10 – Correction: Note from Scott: I meant Baker not Carter.
- 1:23:38 – Correction: Note from Scott: Please add on screen “and bombing and blockading Iraq from them” after I say “They occupy the two holy places”.
- 1:50:48 – Correction: Around the United Nations
- 3:36:08 – Correction: M1 money supply grew ~30% (not two-thirds) from May 2020 to its March 2022 peak. Source: https://mises.org/power-market/how-much-did-they-print
- 4:28:10 – Correction: Note from Scott: I meant “Lebanese Shi’ites along with the Palestinians”
- 4:46:37 – Correction: Note from Scott: Saddam’s romance novel overstated. That was in 2000. “Begone, Demons” was in 2003. Still, it was a novel, not a plan to attack us.
- 5:17:23 – Correction: Western Slavonia
- 5:36:48 – Correction: Tulsi Gabbard was promoted to Lieutenant Colonel.
- 8:33:24 – Correction: Note from Scott: I meant “Ramzy Yousef” not “Ramzi Binalshibh”
- 10:13:23 – Correction: The River Tysa into Romania
Spotify and RSS Timestamps:
- 1:02:24 – Correction: Note from Scott: I meant Baker not Carter.
- 1:31:51 – Correction: Note from Scott: Please add on screen “and bombing and blockading Iraq from them” after I say “They occupy the two holy places”.
- 1:59:02 – Correction: Around the United Nations
- 3:44:21 – Correction: M1 money supply grew ~30% (not two-thirds) from May 2020 to ts March 2022 peak. Source: https://mises.org/power-market/how-much-did-they-print
- 4:36:24 – Correction: Note from Scott: I meant “Lebanese Shi’ites along with the Palestinians”
- 4:54:51 – Correction: Note from Scott: Saddam’s romance novel overstated. That was in 2000. “Begone, Demons” was in 2003. Still, it was a novel, not a plan to attack us.
- 5:25:36 – Correction: Western Slavonia
- 5:45:02 – Correction: Tulsi Gabbard was promoted to Lieutenant Colonel.
- 8:41:38 – Correction: Note from Scott: I meant “Ramzy Yousef” not “Ramzi Binalshibh”
- 10:21:37 – Correction: The River Tysa into Romania
Transcript for Keyu Jin: China’s Economy, Tariffs, Trade, Trump, Communism & Capitalism | Lex Fridman Podcast #477
This is a transcript of Lex Fridman Podcast #477 with Keyu Jin.
The timestamps in the transcript are clickable links that take you directly to that point in
the main video. Please note that the transcript is human generated, and may have errors.
Here are some useful links:
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the main video. Please note that the transcript is human generated, and may have errors.
Here are some useful links:
- Go back to this episode’s main page
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Table of Contents
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And I think, again, I’m sure we’re going to get to this, but there’s a lot of that kind of competition, which really drives the world sometimes crazy of replication. But it’s because it’s not easy. It’s not easy to make money. In the education system, there are not enough jobs for the young people. So how do you get ahead? Let’s say if you’re part of a lower stratum society, how are you going to make sure that your children are going to have a better life than you? You invest in education. So everything is about competition. In a country with 1.3 billion people, that’s somewhat to be expected.
And actually the standardized exams, as imperfect as it is, to select talent is still by and large fair. And that’s how that whole generation of entrepreneurs, bureaucrats, government officials were selected. If you look at the Chinese premiers, the presidents of the past, they all went to great schools, a lot of them were engineers. And same thing for civil servants. It has changed somewhat. The meritocracy I think is eroding in China. I’m worried about that. Because it is fine that you get into a good university based on your own merit, but finding a job now becomes much less meritocratic. People with connections get jobs more easily than others.
Of course, this is not just a unique Chinese phenomenon, it’s actually everywhere. But I guess what I’m saying is that that meritocracy, which was so fundamental to the ancient Chinese education system, by the way, civil servants were selected based on standardized exams in the past. That’s always been throughout Chinese history and that relates to Confucianism. Now, the opportunities, and coming back to the competition point, is that the opportunity is getting slimmer and slimmer. And again, this is not a unique Chinese phenomenon, jobs, where are the jobs going to be? So meritocracy has become more of a problem.
I remember people of that generation told me one time that society was going to focus on the economy. Really? Why would they do that? Wasn’t it politics? Wasn’t it everything about politics and struggle and ideology? So for them that the whole country and the government is going to focus on the economy was just so shocking. Even though we take it for granted now. That shows you that breaking that mold was incredibly difficult. But I think opening up was a really momentous thing that China did. And it wasn’t just joining the WTO, they were doing a decade of work in preparation leading up to that. What’s called Special Economic Zone is really to turn Shenzhen from a fishing village to an export platform, now to a Chinese-style Silicon Valley. And there was the agricultural reforms in the 1980s that meant that farmers could decide what they were going to grow and keep the surplus. Whereas it was a collective system before. You know that very well.
And then of course, the ultimate transformation was when China actually joined the WTO in 2001. And the rest of it is history. We’re still talking about the aftermath. But reforms was the single biggest impetus to Chinese growth. And every time there was a major reform, it was followed by a good decade-long growth. Every time growth went down, there was a new series of major reforms rolled out and then, oops, that led to another wave of good growth. But I’d say that reform pace has slowed in the last 15 years, but are there reforms to be done? Yeah, absolutely. Has China reached even close to its potential? Not at all. But again, it comes back to politics. Now it’s less about economics, it’s more about national security, it’s more about politics. And I think that is probably the single biggest barrier to continued good economic growth.
So I am a mayor of the city of Nanjing in Jiangsu province. I’m going to peak at my neighbor mayor’s city’s GDP growth and I’m going to be very, very competitive. By the way, I forgot about that. Competition is extremely competitive among the local government officials because you are competing with other mayor for a top job. So you need to do better than them. And whether that was an efficient structure or not, I cannot comment. But it certainly just fueled this massive and rapid economic expansion. First it was industrialization. Everybody wanted to do exports. Then they discovered, oh my gosh, we can have so much fiscal revenues coming from land, selling land and real estate. Let’s build real estate and let’s urbanize. And then the money kept coming into these local governments and that they can spend it on nurturing more companies or supporting real estate or supporting investment and they can do a better job.
So then it was geared towards real estate. And that’s how the property cycle became the big thing. Everything was at double speed because of what the local government’s incentives were designed to do. I say now that China’s biggest challenge is consumption, it’s not production. We know that China’s very, very competitive in production and supply. China needs to be a consuming country to be a rich country. Why don’t you put consumption as part of the yardstick for measuring local governments? For a while it was environmental protection. Guess what? Very few of them really want to do it seriously because it goes against the incentives of driving growth. They would suffer on GDP growth if they were very serious about environmental protection. So for a couple of years, nothing happened in China on that front. And then the central government got really concerned and even angry and frustrated, so they decided to put that as a penalizing factor. And then guess what happened? Well, actually environmental protection sped up and in a matter of a short few years, I see blue skies every day in Beijing. That’s how it works.
So implicitly technology was part of the yardstick competition as well. But if you can more accurately have a metric for consumption measures, really focus on making sure that it’s coming from consumption this GDP growth rather than from investment or infrastructure, then I think that it might focus the government’s objective a bit more on thinking about how to make people feel more secure so that they want to save more. For instance, creating more jobs, for instance, more on Social Security spending, on healthcare, on elderly care. Because for the longest period of time, this political economy model was brilliant as scaling up supply, but it was extremely weak at raising personal consumption. Because the incentive does not lie in consumption, it lies in production. So you shift the objectives a little bit and maybe the local government will do more to stimulate consumption.
Because ultimately the state is not the best at allocating resources, picking winners. You want the private actors, whether it’s the venture funds or through market competition, to ultimately decide who gets the most resources. But in the beginning, that big push is not really in any of the canonical models that I’ve studied in economics in the Western school of thought, state push, state mobilization, state initiation. That’s not there. But I think if you look at EVs, solar panels, even just thinking about the idea of reforms in the first place, that initial state push was vitally important.
The other negative, although I think by and large positive aspect, is I don’t think that we need 80 cities to do their own EV brands, but to get started, maybe that’s what it would’ve taken to drive that incentive. And then ultimately, it’s up to the market to decide who are the last five remaining EV companies through market mechanisms. That’s Chinese-style industrial policy. Industrial policy was heavily criticized and again, if I talk to my Harvard professors, they’ll be very, very, very skeptical about the role of the state, especially in such a major way. But if you look at the Chinese experience, the evidence for success is all there. The cities that have pushed the most on supporting that particular sector ultimately did the best in terms of production, but also in terms of innovation, measured by patents. It’s all in the data. But the downside is that a lot of the capital is wasted. And this is what I also discussed in my book is that it is inefficient, although maybe it’s necessary. The amount of waste of investment plowed into these companies that will ultimately just go under, but also the misallocation-
That short, flat, fast attitude, which was so popular, especially before the pandemic, that’s actually somewhat disappearing, so in some sense, this economic downturn is not that bad for China, because it made the Chinese realize that it’s not always going to go up, and it made them really look down deeper into what they really should be focused on, that there will be cycles, there will be up and downs, and so these very short-termist thinking and opportunistic way of driving business will ultimately fail. It’s bad for China that we’re having a sustained economic softness, but I think it’s also a very, very important lesson for the Chinese people to go through.
Risky capital fuels uncertain investments, which allows for countries like the United States to be making these breakthroughs. That’s what China wants, but at the same time, China can’t tolerate these extremely rich people around and the power that is accrued to them. They want to be a leader in technology, but then the financial system is not liberalized. It’s highly regulated, but there’s also intervention. Even if we look back at the French civil law, versus the English common law, the former protects creditors, and the latter is more friendly towards debtors, which gives them more breathing space to innovate, but also to fail and to innovate again. That makes a big difference, so it’s all about a spectrum, right? But you can’t have it both ways.
I was like, “Well, that’s strange, because that’s not how I’m feeling in China, with all this bidding for the Olympics before 2000 and all these buildings going up and down, all this excitement about joining the WTO, all these radical reforms that are taking place, and then all this effervescence that you feel in the air.” It’s not GDP growth as numbers. You actually see it, and they’re describing China as if it was a place shredded with white terror, and so I thought, “Hm. That’s interesting. There’s a big gap, big gap of understanding,” and even today, that many years later, people know China a little bit more, but the sentiment hasn’t profoundly changed.
Now, on how much freedom they have, it’s really ranged from too much freedom. That’s part of the problem, where you have defense companies buying art auction houses, real estate companies, like Evergrande, buying soccer clubs, doing EVs, companies investing in real estate that has nothing to do with their core business. That’s how much latitude were given to private companies, and there were consequences. They were not reined in, and then you go to the other extremes, where they’re scolded, they’re reprimanded, they’re reined in, and they’re kind of folded into submission so that is the whole spectrum. You have the whole range, but I guess what we’re really getting at is it is a country that is moving from a no-rule of law or very little rule of law, very immature markets, to something that is being gradually established: bankruptcy laws, corruption laws, rules and regulations on what’s possible.
One interesting point is that, in China, you ask the companies to innovate first, and then you regulate after, right? So, that has led to things like P2P platforms. It’s led to lots of kind of financial innovations, some of which has actually been very helpful and good, some of which had been disastrous, but the intention to regulate after the fact is to really not slow down or hinder the innovation. This is a very different approach from Europe. You regulate first, and then companies have to work around that. So, this is why the Chinese economy is so complex. You cannot reduce it to simply a statement saying, “The state is unhelpful for the private,” or something like that. There are certain sectors where these SOEs dominate, when it comes to national security in terms of energy, but let’s not focus on these few sectors. By and large, most of the economy, if you actually admit to the fact that China’s highly innovative and highly entrepreneurial, means that it must be the private sector that is driving the show.
But I think, more broadly speaking, if you’re an entrepreneur, part of the capitalist class, keep your head down, make money, and that’s fine, right? Do some philanthropy. There are also many, many other billionaires that are just fine, that are actually very much in favor of the political leadership, and they do their thing. Now, I’m not saying what’s right, what’s wrong. It’s just a very, very different culture and different country. In the US, it’s great to be colorful. You have a very, very colorful president. He would never have been able to make it in China. You have the likes of Elon Musk. It’s great to be different. It’s great to stand out. You do not want to stand out in China.
The moral of the story is that the top leadership understands that it needs these top entrepreneurs, the likes of Jack Ma. They have done so many great things for the country, even for the world, but in China, garnering too much influence and power, even through social media, doesn’t make you look that great. It’s not a good thing for you, personally. There’s a saying in China that you just don’t want to be the tallest tree. The tallest tree gets the most wind. I don’t agree at all with the Western conclusion that this anecdote, this story, has meant that entrepreneurs don’t want to be entrepreneurs anymore, the young kids don’t aspire to be people like Jack Ma. That’s not true at all. The incentives are still there. It’s a different kind of rich, elite class in China.
The Chinese companies focus on solutions, problem-solving. Again, that comes back to the education system, right? You’re giving a problem. I’m going to find the answer. The Chinese students can do it. You want them to write their own question, they can’t do it, right? I’m exaggerating a little bit, but it’s a little like that, right? They see a problem. They’re going to go after it. They’re going to find the best solution. And that’s really, really useful, right? Because we don’t need, or developing countries especially don’t need these frontier technologies that they can’t use. And China currently has this AI Plus program, which is about pushing AI into every single plausible sector with the help of the state. So adoption diffusion is very important. Why China can’t do breakthroughs or can’t do zero to one technologies? I think at the root of it, and there are some deeper, we talked about the proximate reasons, the short, flat, fast, for instance, right? You don’t want to spend too much time on investigating something that you don’t even know if it’s commercially viable.
So basic research is still weaker than in the US universities, but also this kind of intrinsic motivation. It’s very different, right? In China, it’s driven by extrinsic motivation. You are rewarded by compensation, financial compensation, all these kind of extrinsic motivation is what drives you. But intrinsic motivation, pursuit of knowledge for knowledge’s sake, that was deep in the Confucius philosophies. But of course poverty has changed all that. The profound commitment to scholarship, to research, which we know is very much true in the US universities, it’s starting. It’s starting, but it’s not there. So I think these two approaches are actually quite compatible with each other. I don’t know what all this fuss is about, right? China uses technology very well. It can scale up and reduce costs, and then it can spread it around. And the US makes the highest value added by inventing these technologies. But again, diffusion matters.
Now, I’m sure there are many aspects of hyperbole related to DeepSeek, but it just shows you that the gap is much smaller between the China and the US on leading edge technologies than what was expected that these export controls were not effective. They may have even backfired. And it shows you that China has this relentless focus on taking some of the existing technologies and using scale and the advantages to cost and to diffuse. And this is just the beginning. I think it will happen in many other industries as well, including in semiconductors, and that’s a Chinese approach. Now, there’s an interesting dilemma here, which is that this is happening in a time of extreme economic softness, slowdown and missed uncertainty, trade wars, a lack of confidence, slowdown in private investment and consumption, a withdrawal of foreign investment from China, especially the US venture funding.
Imagine what China would’ve been like, let’s say if the economy was doing better. But you could also argue that it’s because people feel threatened that they make more leaves. Now, I wish the world is not… We don’t have to drive each other to the corners to do something great, but that is the reality. And I don’t think that there’s an easy say between who wins because I think the winning idea is part of the old playbook. You’re all kind of part of a network. Different countries, different players have different choke points on each other. I don’t think it’s just about the US and China.
And what’s more, you use your leverage once, and that leverage has a half-life. It becomes a lot less effective the second time around because other countries, other companies are going to try to substitute away. If China uses the rare earth leverage, which I think it is now a little bit, there will be alternatives and substitutes. Got to be very, very careful of what coercion leverage means. Same thing with the US, right? So I think this is all the old thinking of who wins, who dominates. I think we need a new playbook.
The cumulative tariff burdens, when you get to Canada, when you get to Mexico, when you get to any other final destination, these tariffs will affect you. So it’s clearly very, very bad for the world. China’s core principles, and I think that this is not well understood from the rest of the world towards the US, and something that they have kept up is equivalence, reciprocity and realism. China’s not going to lower tariffs unless the US does. You kind of stand up to Trump like a man. That’s the only way to deal with Trump. That’s its view. The deal has to be realistic. The phase one deal of the last time wasn’t realistic, and China thinks, look, the US is going to use this as a leverage, right? That’s not possible. This can’t be seen as political concession. The deal has to be seen as mutual commerce.
So where China can have room to negotiate is opening up things like services. American banks, American financial institutions have a lot of business to do in China. They can buy a limited number of more goods. They can discuss about transparency around rules and regulations on e-commerce, on data. All of that is fine. But don’t confound economic issues with political issues. Hong Kong, Taiwan is not part of the deal, by the way, in case anyone was wondering. Trying to change China’s state hybrid private sector model, don’t go there. Anything that challenges China’s technology, security, that’s not really part of the discussion. I think that people have to be clear about also what China thinks and wants, and also the Chinese to be clear about what Trump wants, although I don’t know anybody, even Trump himself knows exactly what he wants, in order for these very complex negotiations to actually succeed.
US kept at peace and during this peaceful times, things were working very well economically, technologically. They kept the sea lanes open. They did their part to preserve peace to the extent they can, I guess. But China wants peace. Only with peace can they do what they can and actually US, despite saying they’ve been victimized, look, they’ve had a very, very good time. Never have quality of life, standards of living, technology risen as much as the US did under its own liberal order than it has ever before, and the amount of influence and power. Yes, of course, you can blame the US for lots of things that happened, but it actually had a really good time and China as well. So now they’re going to take this apart. They think that they’re going to be somehow better off that American people and Chinese people are going to be better off under more disorderly, fragmented rule of a jungle kind of world. That’s an illusion. That’s what politicians tell their people, but that’s not the truth.
The trade deficits have widened since Trump, right? They haven’t closed the imbalance with China and with the rest of the world because ultimately the US saves less than it invests. And that’s a macrophenomenon. It’s not a trade phenomenon, but I fear that the US, by dropping off of this global trading network and system, it will lose more and more of its power. You have power when you’re deeply engaged and embedded with a country. Once you’ve left it, you actually lose any sort of leverage.
From a purely economic and rational level, you’d say immigration is very important because it keeps the prices down, keeps inflation down, it keeps up the supply, which is very important when you have that much demand. And look, the standards of living have also improved for many people who can afford it. The low-cost workers being able to sustain the service economy. So I understand both sides of the story. I think that in the end, it is a balance. And I do believe even as an economist, that social harmony, and I come back to this word harmony repeatedly, even though as an economist, this thing doesn’t even exist, is becoming ever more important.
And as a nation, some kinds of skilled immigration is actually what makes the US the most technologically advanced country in the world. At the same time, you do have to think about your own citizens, the ones that have had generations and been around, and you have to think about their livelihoods.
And then also politics, especially in the United States, there’s a red team and a blue team. And when the red team is at the top, the blue team just pulls all the way to the other direction, and vice versa. And we just kind of oscillate back and forth in this way, and hopefully make progress over time.
But the US is the technological leadership and it is able to stomach that volatility and clash without breaking apart. And other countries don’t have the capacity of the institutions, the culture to be able to tolerate and still maintain to keep the society together. So I think it is very interesting. But yeah, it’s a puzzle.
And mainland China is a very, very important economic partner to the Taiwanese economy. I think that I don’t have a lot of views around this, but I just say this, I think there’s more political wisdom of the Chinese government side than we assume outside of China. And that strategic ambiguity, but also strategic patience, especially given China’s economic situation currently means that more likely or not, I think that if China does really well economically. And Taiwan is not doing as well economically as we’ve seen that over time, this is still the best strategy from China’s point of view to resolve these differences. I think any military use and action would be actually quite detrimental to China.
The role that TSMC plays is so critical given the choke point they have on the rest of the world in the semiconductors industry, which we know is one of the most important industries sustaining the economy. Not to mention things like AI and technologies. Look, the US has been trying to build another TSMC outside of Taiwan. It’s very, very, very slow. There are a lot of cumulative knowledge, experience, and skills that are involved. It’s not that easy.
The Chinese don’t want to see an eruption of TSMC either, because again, it’s vitally important for everybody. Whilst I don’t think that this is really necessarily a bargaining chip, because if you really see what the Chinese thinks about Taiwan, it goes beyond economics. It goes beyond the logical. It is about realizing a dream, which even I tended to not place enough importance. But when I talk to the young people in China, I realized that it’s still their dream.
Maybe on the good side, it’s actually a golden age for Chinese women because the Chinese girls never had as much education investment apportioned to them as they’ve had after being the only child in the family. And you raised a daughter like a son. And if we look at all the skill gaps and the education gaps and the returns to education, actually girls fared better. Apart from the top, top, top leadership in the Chinese political class, you look at the CEOs and major companies, in the ministry, civil servants, there are a lot of Chinese women.
And actually, recently, if you look at the surveys, the Chinese families would prefer to have a daughter than a son. Because they’ve seen how much bargaining power you as a Chinese woman and as a rare bride, or a scarce supply of brides goes, you have raised your bargaining power and you can command high amounts of dowry. That was an unintended good thing about the one-child policy. And to the opposite, the recent relaxation of the one-child policy, actually women are now encouraged to have as many kids as they possibly can.
The flip side of the one-child policy has not necessarily been good to women in the job market because they think, “Ph, well, you’ve only had one child. Oh, guess what? You can have another child.” So that’s not necessarily good for long-term employability. But on the economic side, I’ve written about this in my academic papers, it’s been one of the very important causes of high saving rate. I always tell people, “You want to stimulate consumption? Well, have more kids.” You know how much one of those costs, right?
And in the end, these one-child policy children don’t want to have a lot of kids, because they don’t want them to see them suffer what they have suffered. So there are all these kind of unexpected consequences, but also changing the social fabric. I’d like to say that it broke the hierarchy of the family where the parents had the dominant role. Now the kids are the boss. They boss everybody around, they boss the grandparents around.
It relates to the puzzle, the housing puzzle. How is it possible that the Chinese youth can afford these really expensive real estate with their meager income? Well, one common thing is that they have six wallets, you and your spouse, together with the parents, and maybe even the grandparents would chip in. So there’s this kind of intergenerational family dynamics that makes our models focused on the individual consumption, just completely inappropriate to describe these dynamics.
But the demographic side is the other challenge, which is they were so strict about the one-tile policy and they kept it in for too long, so that once they decide to loosen it and decided that fertility rates were way too low to sustain the Chinese economy in its future, it was already too late. And now, they’re finding all kinds of creative ways to make people have more kids. This is not something that they can demand and command in ways that they can demand and command emerging strategic sectors.
So all these really interesting social anecdotes where they’re encouraging even single women in a highly conservative society, encouraging single women to raise children, nothing to be afraid about that, lots of support system going there. I mean, they’re radically changing the whole thinking around these kind of issues.
We haven’t even figured out the relationship between labor force, productivity, what are the factors of production that will be most important for future economy? And so we shouldn’t be terrified that there’s a looming aging problem. Because I think the more important question is that skill gap. What kind of skills do we actually need in the economy? What kind of education system should we design in the economy to better suit the country to an ever evolving and transformative technological society?
When we talk about the fundamentals, it’s the skills, it’s the human capital, it’s the physical capital, it’s the macroeconomic stability and political stability. That’s a lot going for a country if you look around the world right now. And this is why the entrepreneurialism is still there, because the fundamentals are there, even though the economy is weak, consumers are not confident and private investment is insufficient. The fundamentals are there.
Is China where it should be far, far, far from it. Because China’s potential, based on the fundamentals, is a much higher level of per capita income than where it is currently. It’s kind of currently in a $10,000 bracket. And this is also a puzzle because you’re a $10,000 per capita income country that can actually do leading-edge technology and can be neck to neck with US companies on these high-tech. That’s the first time in history.
Even the Soviet Union, which was very technologically advanced, did not have the extent of commercializable civilian technology and the technologies that were pervasive throughout the economy. But fundamentally, we have to understand how much of this real estate crisis has impinged on the economy and explains the persistent slowdown.
So coming back to our local mayor economy, where did you think the local mayors got their funds? Through real estate, they sold land. Real estate property developers came in, they can develop the entire local economy because the services will come in, the jobs will come in. And by the way, you are an equity owner of the entire city. So you want these property developers around. Many countries throughout history all have this property transition, right? You need to wean the economy off of property. In a good situation, it takes three to five years. In a bad situation, it can take 10 years.
I don’t know where China belongs currently. But the real estate collapse also meant the local finances, local government finances also shrunk dramatically. Real estate was a really important part of the financial industry, it brought that down. Together, it really had a major impact on the economy. But also from the consumer side, their wealth was primarily tied into real estate. Not the stock market, not other kind of investment opportunities, it was real estate. So they felt poor, they consumed less.
If you think that the Chinese new generation is still all about that, you should really study them a little bit more. They’re all about making their lives more fun and more interesting, right? That’s the cycle, right? In the beginning, Chinese people are hungry. They want to look for jobs, and they find these jobs and manufacturing. Now they want a work-life balance. They are a spearheading fashion. They spend so much more on entertainment, travel, clothing, restaurants. They have come out with these amazing coffee chains that have beaten completely Starbucks within a very short amount of time. This is all the new generation.
Where are the opportunities? It’s in the local areas. It’s all about localism. Not globalism, localism. Being rooted in your local economy, you’ll actually find so many more opportunities. You go to Chongqing. I actually was watching a video about Chongqing. I thought we were in Shanghai. I was so surprised. And you go to Chengdu, it’s fun. People work a little bit less, but it’s really exciting. It’s very fun. People are really nice. Go to Xinjiang, take a look for yourself. There’s ski resorts being open there. You have a very interesting, colorful, dynamic complex country, and it’s not defined by Beijing and Shanghai.
Click link to jump approximately to that part in the transcript:
- 0:00 – Introduction
- 0:47 – Misconceptions about China
- 5:17 – Education in China
- 14:34 – Economic reforms of Deng Xiaoping
- 19:53 – Mayor economy and GDP growth race
- 33:40 – Growing up in China
- 39:18 – First time in the US
- 43:32 – China’s government vs business sector
- 47:06 – Communism and capitalism
- 50:45 – Jack Ma
- 56:58 – China’s view on innovation and copying ideas
- 1:03:35 – DeepSeek moment
- 1:07:29 – CHIPS Act
- 1:09:16 – Tariffs and Trade
- 1:21:41 – Immigration
- 1:26:28 – Taiwan
- 1:32:14 – One-child policy
- 1:40:11 – China’s economy collapse predictions
- 1:44:54 – Advice for visiting China
Introduction
Lex Fridman
The following is a conversation with Keyu Jin, an economist at the London School of Economics, specializing in China’s economy, international macroeconomics, global trade imbalances, and financial policy. She wrote the highly lauded book on China titled The New China Playbook: Beyond Socialism and Capitalism that details China’s economic transformation since 1978 to today. And it dispels a lot of misconceptions about China’s economy that people in the West have. This is the Lex Fridman Podcast. To support it, please check out our sponsors in the description and consider subscribing to this channel. And now, dear friends, here’s Keyu Jin.
The following is a conversation with Keyu Jin, an economist at the London School of Economics, specializing in China’s economy, international macroeconomics, global trade imbalances, and financial policy. She wrote the highly lauded book on China titled The New China Playbook: Beyond Socialism and Capitalism that details China’s economic transformation since 1978 to today. And it dispels a lot of misconceptions about China’s economy that people in the West have. This is the Lex Fridman Podcast. To support it, please check out our sponsors in the description and consider subscribing to this channel. And now, dear friends, here’s Keyu Jin.
Misconceptions about China
Lex Fridman
What is the single biggest misconception the West has about China’s economy today?
What is the single biggest misconception the West has about China’s economy today?
Keyu Jin
The biggest misunderstanding is somehow that a group of people or even just one person runs the entire Chinese economy. It is far from the reality. It is a very complex, large economy, and even if there is an extreme form of political centralization, the economy is totally decentralized. The role that the local mayors, I call this the mayor economy, plays in reforms, but also driving the technological innovation that we’re seeing right now. It is actually not run by just a handful of people. It’s more decentralized than the US’s. And I think more broadly, a big misunderstanding is really the relationship between Chinese people and authority.
The biggest misunderstanding is somehow that a group of people or even just one person runs the entire Chinese economy. It is far from the reality. It is a very complex, large economy, and even if there is an extreme form of political centralization, the economy is totally decentralized. The role that the local mayors, I call this the mayor economy, plays in reforms, but also driving the technological innovation that we’re seeing right now. It is actually not run by just a handful of people. It’s more decentralized than the US’s. And I think more broadly, a big misunderstanding is really the relationship between Chinese people and authority.
Lex Fridman
Can you elaborate on that?
Can you elaborate on that?
Keyu Jin
Well, people think that somehow there’s almost blind submission to authority in China. We have a very nuanced relationship with authority, whether it is between kids and parents or students and their teachers or with your bosses and the Chinese government, it’s kind of the same thing. There’s paternalism, they think that they’re responsible for you. But a certain amount of deference to authority is not blind submission. It’s been written implicitly in our contract for thousands of years that in exchange for some deference, we are given stability, security, and peace and hopefully prosperity.
Well, people think that somehow there’s almost blind submission to authority in China. We have a very nuanced relationship with authority, whether it is between kids and parents or students and their teachers or with your bosses and the Chinese government, it’s kind of the same thing. There’s paternalism, they think that they’re responsible for you. But a certain amount of deference to authority is not blind submission. It’s been written implicitly in our contract for thousands of years that in exchange for some deference, we are given stability, security, and peace and hopefully prosperity.
Lex Fridman
So there is some element that we have in the West of freedom of the individual so that a little bit of the rebel is allowed in balance with the deference to authority.
So there is some element that we have in the West of freedom of the individual so that a little bit of the rebel is allowed in balance with the deference to authority.
Keyu Jin
Yeah, absolutely. Without that, how can you have this radical, dynamic entrepreneurialism you see in China? If you don’t have a sense of self, a sense of the fact that you can find opportunities, you look for opportunities, you drive opportunities, it’s all self-motivated.
Yeah, absolutely. Without that, how can you have this radical, dynamic entrepreneurialism you see in China? If you don’t have a sense of self, a sense of the fact that you can find opportunities, you look for opportunities, you drive opportunities, it’s all self-motivated.
Lex Fridman
Is there still a young kid in China that’s able to dream to be the stereotypical Steve Jobs in the garage, start a business and change the world by doing so?
Is there still a young kid in China that’s able to dream to be the stereotypical Steve Jobs in the garage, start a business and change the world by doing so?
Keyu Jin
There are millions of young kids like that in China. They might not be thinking about changing the world. And this is where the Chinese approach to innovation is very different from the Silicon Valley one, I’d say. But they see opportunity. They see a country with a billion consumers. They see scale, they see speed, they see that with their dreams and the team that you have in China with engineers and the digital transformation, you can do so many things. And this generation of young people think about transforming their local economy. I think we’re going to get into this, but it’s no longer going to just be manufacturing. The young kids are entrepreneurs.
There are millions of young kids like that in China. They might not be thinking about changing the world. And this is where the Chinese approach to innovation is very different from the Silicon Valley one, I’d say. But they see opportunity. They see a country with a billion consumers. They see scale, they see speed, they see that with their dreams and the team that you have in China with engineers and the digital transformation, you can do so many things. And this generation of young people think about transforming their local economy. I think we’re going to get into this, but it’s no longer going to just be manufacturing. The young kids are entrepreneurs.
Lex Fridman
Well, let’s stay on the big picture a bit, there’s a perception that China is a communist country. So to what degree is China a capitalist country and to what degree is it a communist country?
Well, let’s stay on the big picture a bit, there’s a perception that China is a communist country. So to what degree is China a capitalist country and to what degree is it a communist country?
Keyu Jin
I’ve rarely seen a more capitalist society than China, from the pure economic side. I’ve rarely seen companies that are as competitive as Chinese companies. People as ambitious and obsessed with making money as Chinese people. Kind of ruthless actually. And look, consumers shop, firms invest. If you invest well financially, you’ll get great returns. What is not capitalistic about the Chinese economy? At the same time, the social fabric is highly socialist. First of all, the state or enterprises dominate many of the sectors. The state banks control the financial system. We often talk about common prosperity, about equal opportunity, just and fair society. But even daily stories, a walk in the park behind my parents’ apartment, you’re going to find at least 50 organized social groups on a daily level, singing, dancing, exercising, doing whatever these fantastic idiosyncratic hobbies they have, getting together every single day. And free courses for the elderly in retard. That sense of communalism, that sense of belonging, that strive for harmony at the societal level is there.
I’ve rarely seen a more capitalist society than China, from the pure economic side. I’ve rarely seen companies that are as competitive as Chinese companies. People as ambitious and obsessed with making money as Chinese people. Kind of ruthless actually. And look, consumers shop, firms invest. If you invest well financially, you’ll get great returns. What is not capitalistic about the Chinese economy? At the same time, the social fabric is highly socialist. First of all, the state or enterprises dominate many of the sectors. The state banks control the financial system. We often talk about common prosperity, about equal opportunity, just and fair society. But even daily stories, a walk in the park behind my parents’ apartment, you’re going to find at least 50 organized social groups on a daily level, singing, dancing, exercising, doing whatever these fantastic idiosyncratic hobbies they have, getting together every single day. And free courses for the elderly in retard. That sense of communalism, that sense of belonging, that strive for harmony at the societal level is there.
Education in China
Lex Fridman
So just to go back to something you said, there is a value for competition culturally. So on the business side, on the economic side, there is a cultural value of people competing in a meritocratic way?
So just to go back to something you said, there is a value for competition culturally. So on the business side, on the economic side, there is a cultural value of people competing in a meritocratic way?
Keyu Jin
Competition is ferocious in China, especially when it comes to Chinese companies, but also in education. I should be thankful that I’m not born later that I am because I thought China was pretty competitive already going to the schools and studying for the exams. It is a different level today. Competition is not necessarily in the culture, I’d say, it’s driven really by the changing economic and social circumstances of the day. The Chinese companies are all hardworking. They’re all going after the market share. They all kind of want to do the same thing. It’s not quite like in the US where you open a coffee shop while next door I’m going to open a bagel shop. In China, if the coffee shop does well, everybody wants to open the same coffee shop.
Competition is ferocious in China, especially when it comes to Chinese companies, but also in education. I should be thankful that I’m not born later that I am because I thought China was pretty competitive already going to the schools and studying for the exams. It is a different level today. Competition is not necessarily in the culture, I’d say, it’s driven really by the changing economic and social circumstances of the day. The Chinese companies are all hardworking. They’re all going after the market share. They all kind of want to do the same thing. It’s not quite like in the US where you open a coffee shop while next door I’m going to open a bagel shop. In China, if the coffee shop does well, everybody wants to open the same coffee shop.
And I think, again, I’m sure we’re going to get to this, but there’s a lot of that kind of competition, which really drives the world sometimes crazy of replication. But it’s because it’s not easy. It’s not easy to make money. In the education system, there are not enough jobs for the young people. So how do you get ahead? Let’s say if you’re part of a lower stratum society, how are you going to make sure that your children are going to have a better life than you? You invest in education. So everything is about competition. In a country with 1.3 billion people, that’s somewhat to be expected.
Lex Fridman
Let’s go back to the roots of that. So you described the China’s economy model is rooted in its history. So can we talk about Confucianism? Can you explain to what degree those roots run back to Confucianism and in general to other parts of Chinese history?
Let’s go back to the roots of that. So you described the China’s economy model is rooted in its history. So can we talk about Confucianism? Can you explain to what degree those roots run back to Confucianism and in general to other parts of Chinese history?
Keyu Jin
Yeah. Confucianism is more of a moral philosophy than let’s say a religion or a belief system. It prioritizes social harmony above anything else. It’s not about metaphysics, but more about ethics. And at the individual level, the responsibility, the duties are all meant to preserve that social order. So it’s filial piety, it is loyalty, it is how to be a Chinese gentleman. But things like saving, frugality is part of the moral discipline. Education is part of the moral cultivation. So there’s a very strong emphasis that you as a citizen have a responsibility to contribute to society as a whole.
Yeah. Confucianism is more of a moral philosophy than let’s say a religion or a belief system. It prioritizes social harmony above anything else. It’s not about metaphysics, but more about ethics. And at the individual level, the responsibility, the duties are all meant to preserve that social order. So it’s filial piety, it is loyalty, it is how to be a Chinese gentleman. But things like saving, frugality is part of the moral discipline. Education is part of the moral cultivation. So there’s a very strong emphasis that you as a citizen have a responsibility to contribute to society as a whole.
Lex Fridman
On the education side, a part of Confucianism is a value for meritocracy. So how does that permeate the education system in China? You’ve already spoken to it a little bit, the value of competition in that it’s already getting more and more intense. But it would be very interesting to get your understanding of the education system, its history and as it stands today.
On the education side, a part of Confucianism is a value for meritocracy. So how does that permeate the education system in China? You’ve already spoken to it a little bit, the value of competition in that it’s already getting more and more intense. But it would be very interesting to get your understanding of the education system, its history and as it stands today.
Keyu Jin
If China were relatively successful economically, a huge part of the reason is by and large, it’s been meritocratic. That is changing somewhat now, but the only way that you have still that many poor people, especially a couple of decades back, still be in harmony with society, seeing all these rich people make tons of money and you’re still belonging to that lower stratum. The only reason is that you believe that your children have a future through meritocracy. And even though it’s highly imperfect, standardized testing, all this competition, all of the hours and the tutorials to studying for standardized exams. Well, that is a very realistic scenario in China because there’s that many people. When I was growing up in school, we had 60 people per class and there were 10 classes in one grade. Now imagine that many people applying for colleges in the American way, how many essays would have been written and need to be scrutinized? But also that gives room for total corruption, if you know what I mean. Just connection based.
If China were relatively successful economically, a huge part of the reason is by and large, it’s been meritocratic. That is changing somewhat now, but the only way that you have still that many poor people, especially a couple of decades back, still be in harmony with society, seeing all these rich people make tons of money and you’re still belonging to that lower stratum. The only reason is that you believe that your children have a future through meritocracy. And even though it’s highly imperfect, standardized testing, all this competition, all of the hours and the tutorials to studying for standardized exams. Well, that is a very realistic scenario in China because there’s that many people. When I was growing up in school, we had 60 people per class and there were 10 classes in one grade. Now imagine that many people applying for colleges in the American way, how many essays would have been written and need to be scrutinized? But also that gives room for total corruption, if you know what I mean. Just connection based.
And actually the standardized exams, as imperfect as it is, to select talent is still by and large fair. And that’s how that whole generation of entrepreneurs, bureaucrats, government officials were selected. If you look at the Chinese premiers, the presidents of the past, they all went to great schools, a lot of them were engineers. And same thing for civil servants. It has changed somewhat. The meritocracy I think is eroding in China. I’m worried about that. Because it is fine that you get into a good university based on your own merit, but finding a job now becomes much less meritocratic. People with connections get jobs more easily than others.
Of course, this is not just a unique Chinese phenomenon, it’s actually everywhere. But I guess what I’m saying is that that meritocracy, which was so fundamental to the ancient Chinese education system, by the way, civil servants were selected based on standardized exams in the past. That’s always been throughout Chinese history and that relates to Confucianism. Now, the opportunities, and coming back to the competition point, is that the opportunity is getting slimmer and slimmer. And again, this is not a unique Chinese phenomenon, jobs, where are the jobs going to be? So meritocracy has become more of a problem.
Lex Fridman
Do you have any memories of your own experience in terms of competition, the good and the bad of it? Maybe from that, can you pull out the thread of the value of that kind of competition? Basically, I grew up in the Soviet Union, so there’s a kind of brutality to the competition, but I think it ultimately molds really interesting people.
Do you have any memories of your own experience in terms of competition, the good and the bad of it? Maybe from that, can you pull out the thread of the value of that kind of competition? Basically, I grew up in the Soviet Union, so there’s a kind of brutality to the competition, but I think it ultimately molds really interesting people.
Keyu Jin
There is a good and bad part of competition. I remember when I was going into middle school, every single midterm exam, final exam, you are ranked from number one to number 800 in your entire grade and publicly displayed.
There is a good and bad part of competition. I remember when I was going into middle school, every single midterm exam, final exam, you are ranked from number one to number 800 in your entire grade and publicly displayed.
Lex Fridman
Nice.
Nice.
Keyu Jin
Nice, right?
Nice, right?
Lex Fridman
Very nice.
Very nice.
Keyu Jin
Imagine the majority of people and how they feel. But it does drive ambition in part and you don’t take anything for granted and you work hard, you keep the spirit up. But going to the US, I finally realized that Americans are totally competitive, it’s just that they don’t display it. It’s not as apparent. I remember I went to a very competitive high school, but everyone’s so chill, “Oh, I’m not studying.” They’re studying. They are secretly studying. When I was doing my PhD at Harvard, people would say, “Oh, my parents say don’t work so hard.” People say, “Don’t say you worked.” They’re working hard, just you don’t show it. In China, it’s kind of a noble thing to show that you’re working hard and that you’re number one or that you’re top of the class and you want to display it and you want to let everybody know. But in the US, everybody’s secretly doing it.
Imagine the majority of people and how they feel. But it does drive ambition in part and you don’t take anything for granted and you work hard, you keep the spirit up. But going to the US, I finally realized that Americans are totally competitive, it’s just that they don’t display it. It’s not as apparent. I remember I went to a very competitive high school, but everyone’s so chill, “Oh, I’m not studying.” They’re studying. They are secretly studying. When I was doing my PhD at Harvard, people would say, “Oh, my parents say don’t work so hard.” People say, “Don’t say you worked.” They’re working hard, just you don’t show it. In China, it’s kind of a noble thing to show that you’re working hard and that you’re number one or that you’re top of the class and you want to display it and you want to let everybody know. But in the US, everybody’s secretly doing it.
Lex Fridman
Yeah, some of it is the signaling. The culture emphasizes the signaling of is it better for everything to come easily, thereby showing that you’re a genius, it comes naturally? Or is it better to show that you worked extremely hard for the thing? But the ultimate result is there’s still competition. But I don’t know, when you’re visually displaying and explicitly stating that it’s good to be number one and it’s bad to be number 800. I think that permeates throughout the culture to where, first of all, you understand that hard work is the only way to improve, to succeed in life. And second of all, you just create this framework of early on understanding what it means to live a good life. And a part of that is to find the thing you’re damn good at and get even better at it, master it, become hopefully the best person in the world at that thing. I don’t know, that’s an extremely important lesson for society to teach.
Yeah, some of it is the signaling. The culture emphasizes the signaling of is it better for everything to come easily, thereby showing that you’re a genius, it comes naturally? Or is it better to show that you worked extremely hard for the thing? But the ultimate result is there’s still competition. But I don’t know, when you’re visually displaying and explicitly stating that it’s good to be number one and it’s bad to be number 800. I think that permeates throughout the culture to where, first of all, you understand that hard work is the only way to improve, to succeed in life. And second of all, you just create this framework of early on understanding what it means to live a good life. And a part of that is to find the thing you’re damn good at and get even better at it, master it, become hopefully the best person in the world at that thing. I don’t know, that’s an extremely important lesson for society to teach.
Keyu Jin
Yeah. That’s, I would say, the right kind of competition or the efficient kind of competition. I feel that in the Chinese education system, it was not necessarily efficient because it frames you and molds you to be thinking in a certain way what’s been taught to you. You don’t have the bandwidth or the time or freedom to be more creative and to think outside the box. There, it’s just the box. You maximize the box and that’s it. You don’t actually know what’s outside of the box and you never actually go there. That’s the bad part of Chinese competition. And when I got to the US, the high school teachers were asking us to question authority, to question text. I’m like, “Wow, really? You can do that?” So I started asking why.
Yeah. That’s, I would say, the right kind of competition or the efficient kind of competition. I feel that in the Chinese education system, it was not necessarily efficient because it frames you and molds you to be thinking in a certain way what’s been taught to you. You don’t have the bandwidth or the time or freedom to be more creative and to think outside the box. There, it’s just the box. You maximize the box and that’s it. You don’t actually know what’s outside of the box and you never actually go there. That’s the bad part of Chinese competition. And when I got to the US, the high school teachers were asking us to question authority, to question text. I’m like, “Wow, really? You can do that?” So I started asking why.
Economic reforms of Deng Xiaoping
Lex Fridman
All right. So there has been this miracle in the Chinese economy from after Mao, under Deng Xiaoping, where the Chinese economy got transformed and grew incredibly. So can you explain what happened? The different transformations that happened, the different reforms that happened under Deng Xiaoping?
All right. So there has been this miracle in the Chinese economy from after Mao, under Deng Xiaoping, where the Chinese economy got transformed and grew incredibly. So can you explain what happened? The different transformations that happened, the different reforms that happened under Deng Xiaoping?
Keyu Jin
Deng Xiaoping was by far our most pragmatic leader and I think everybody’s grateful to Deng Xiaoping. My father’s generation would not have seen that amount of prosperity and peace and opportunity without Deng Xiaoping. It started in the late 1970s when Deng Xiaoping came out with this open up and reform mandate. And it was very tough. Again, coming back to the big misunderstanding of China, it’s not as if one leader decides that that’s what we’re going to do and then everybody follows order and does that. No. There are tons of political barriers, tons of incentive compatibility problems at the local level. In the end, you need the local provincial governors, the mayors to do the job. And how many prefectures are there in China? A lot. And they have their own interests. We know this around the world, politically it’s the most difficult thing to do. But somehow Deng Xiaoping was able to break tradition, break convention, come out with this completely new way of thinking about society, life and economy. And it was so transformative.
Deng Xiaoping was by far our most pragmatic leader and I think everybody’s grateful to Deng Xiaoping. My father’s generation would not have seen that amount of prosperity and peace and opportunity without Deng Xiaoping. It started in the late 1970s when Deng Xiaoping came out with this open up and reform mandate. And it was very tough. Again, coming back to the big misunderstanding of China, it’s not as if one leader decides that that’s what we’re going to do and then everybody follows order and does that. No. There are tons of political barriers, tons of incentive compatibility problems at the local level. In the end, you need the local provincial governors, the mayors to do the job. And how many prefectures are there in China? A lot. And they have their own interests. We know this around the world, politically it’s the most difficult thing to do. But somehow Deng Xiaoping was able to break tradition, break convention, come out with this completely new way of thinking about society, life and economy. And it was so transformative.
I remember people of that generation told me one time that society was going to focus on the economy. Really? Why would they do that? Wasn’t it politics? Wasn’t it everything about politics and struggle and ideology? So for them that the whole country and the government is going to focus on the economy was just so shocking. Even though we take it for granted now. That shows you that breaking that mold was incredibly difficult. But I think opening up was a really momentous thing that China did. And it wasn’t just joining the WTO, they were doing a decade of work in preparation leading up to that. What’s called Special Economic Zone is really to turn Shenzhen from a fishing village to an export platform, now to a Chinese-style Silicon Valley. And there was the agricultural reforms in the 1980s that meant that farmers could decide what they were going to grow and keep the surplus. Whereas it was a collective system before. You know that very well.
And then of course, the ultimate transformation was when China actually joined the WTO in 2001. And the rest of it is history. We’re still talking about the aftermath. But reforms was the single biggest impetus to Chinese growth. And every time there was a major reform, it was followed by a good decade-long growth. Every time growth went down, there was a new series of major reforms rolled out and then, oops, that led to another wave of good growth. But I’d say that reform pace has slowed in the last 15 years, but are there reforms to be done? Yeah, absolutely. Has China reached even close to its potential? Not at all. But again, it comes back to politics. Now it’s less about economics, it’s more about national security, it’s more about politics. And I think that is probably the single biggest barrier to continued good economic growth.
Lex Fridman
Maybe can you speak to what it takes in such a large system, in many ways such a successful economy, to do reform? So you mentioned pragmatism. Deng Xiaoping famously said that, “It doesn’t matter whether the cat is black or white, as long as it catches mice.” So there’s that pragmatism that I think underlies a lot of great reforms
Maybe can you speak to what it takes in such a large system, in many ways such a successful economy, to do reform? So you mentioned pragmatism. Deng Xiaoping famously said that, “It doesn’t matter whether the cat is black or white, as long as it catches mice.” So there’s that pragmatism that I think underlies a lot of great reforms
Keyu Jin
As a contrast to Soviet Union, the Chinese economy, as I mentioned, was extremely decentralized. In Soviet Union, the ministries were in charge of essential bureaucracy. But a lot of the power were given to these provincial governors, party secretaries, mayors of different sorts, and they were incentivized. That’s the key is that these mayors were incentivized to do a good job. If I were successful on a radical reform, if I were successful, I’d be a national hero and then that reform will be rolled out in every single city in the country over time. And I’ll be promoted to the higher run of the central government. And who knows, I might even become vice premier, premier president one day. That was how the individual was motivated to carry out these really tough reforms. Now China has changed a bit. It’s not about being radical and radically successful. It’s about being safe. So when you shift from basically an entrepreneurial state to a safe state, then the objective function changes and you see it in different economic outcomes.
As a contrast to Soviet Union, the Chinese economy, as I mentioned, was extremely decentralized. In Soviet Union, the ministries were in charge of essential bureaucracy. But a lot of the power were given to these provincial governors, party secretaries, mayors of different sorts, and they were incentivized. That’s the key is that these mayors were incentivized to do a good job. If I were successful on a radical reform, if I were successful, I’d be a national hero and then that reform will be rolled out in every single city in the country over time. And I’ll be promoted to the higher run of the central government. And who knows, I might even become vice premier, premier president one day. That was how the individual was motivated to carry out these really tough reforms. Now China has changed a bit. It’s not about being radical and radically successful. It’s about being safe. So when you shift from basically an entrepreneurial state to a safe state, then the objective function changes and you see it in different economic outcomes.
Mayor economy and GDP growth race
Lex Fridman
So maybe can you speak to that? What are some important things to understand about the structure of the Chinese state?
So maybe can you speak to that? What are some important things to understand about the structure of the Chinese state?
Keyu Jin
Well, the central leadership politically is extremely powerful and it’s very consolidated. But they hold a very crucial key to the local governments, which is that they decide their fate. Am I going to promote them? Am I going to put them in jail? Am I going to fire them? Am I going to reward them? Am I going to punish them? They hold that crucial key. And I think what was very surprising for most of the Western audience is that when I mentioned about the mayor economy, they say, “Why don’t our American mayors in each city do these very radical things and then push for GDP growth and technology innovation?” It’s quite different. I think this is where China’s very unique in the world, is that political centralization, economic decentralization, and the yardstick to measure local mayors’ competence through, in the first stage, it was GDP growth.
Well, the central leadership politically is extremely powerful and it’s very consolidated. But they hold a very crucial key to the local governments, which is that they decide their fate. Am I going to promote them? Am I going to put them in jail? Am I going to fire them? Am I going to reward them? Am I going to punish them? They hold that crucial key. And I think what was very surprising for most of the Western audience is that when I mentioned about the mayor economy, they say, “Why don’t our American mayors in each city do these very radical things and then push for GDP growth and technology innovation?” It’s quite different. I think this is where China’s very unique in the world, is that political centralization, economic decentralization, and the yardstick to measure local mayors’ competence through, in the first stage, it was GDP growth.
So I am a mayor of the city of Nanjing in Jiangsu province. I’m going to peak at my neighbor mayor’s city’s GDP growth and I’m going to be very, very competitive. By the way, I forgot about that. Competition is extremely competitive among the local government officials because you are competing with other mayor for a top job. So you need to do better than them. And whether that was an efficient structure or not, I cannot comment. But it certainly just fueled this massive and rapid economic expansion. First it was industrialization. Everybody wanted to do exports. Then they discovered, oh my gosh, we can have so much fiscal revenues coming from land, selling land and real estate. Let’s build real estate and let’s urbanize. And then the money kept coming into these local governments and that they can spend it on nurturing more companies or supporting real estate or supporting investment and they can do a better job.
So then it was geared towards real estate. And that’s how the property cycle became the big thing. Everything was at double speed because of what the local government’s incentives were designed to do. I say now that China’s biggest challenge is consumption, it’s not production. We know that China’s very, very competitive in production and supply. China needs to be a consuming country to be a rich country. Why don’t you put consumption as part of the yardstick for measuring local governments? For a while it was environmental protection. Guess what? Very few of them really want to do it seriously because it goes against the incentives of driving growth. They would suffer on GDP growth if they were very serious about environmental protection. So for a couple of years, nothing happened in China on that front. And then the central government got really concerned and even angry and frustrated, so they decided to put that as a penalizing factor. And then guess what happened? Well, actually environmental protection sped up and in a matter of a short few years, I see blue skies every day in Beijing. That’s how it works.
Lex Fridman
So GDP is a measure of success in production. What’s the measure or what does it mean to be successful on the consumer side? You said it’s important to improve that. What does it mean to be a successful consumer nation?
So GDP is a measure of success in production. What’s the measure or what does it mean to be successful on the consumer side? You said it’s important to improve that. What does it mean to be a successful consumer nation?
Keyu Jin
The metrics shouldn’t be geared just towards GDP growth alone. It was just singular GDP growth and you can borrow heavily and just spend on infrastructure. That’s not a productive way to drive the economy. That’s what the local governments were doing for a long period of time. In the last few years, innovation, unicorns have been an implicit yardstick for local governments. That’s how we’ve seen these great EV companies. 80 cities doing EVs. I mean, do we really need 80 cities to do their own Evs?Solar panels. Now DeepSeek has become a star. Semiconductor companies. Each local government wants to have their own national champion.
The metrics shouldn’t be geared just towards GDP growth alone. It was just singular GDP growth and you can borrow heavily and just spend on infrastructure. That’s not a productive way to drive the economy. That’s what the local governments were doing for a long period of time. In the last few years, innovation, unicorns have been an implicit yardstick for local governments. That’s how we’ve seen these great EV companies. 80 cities doing EVs. I mean, do we really need 80 cities to do their own Evs?Solar panels. Now DeepSeek has become a star. Semiconductor companies. Each local government wants to have their own national champion.
So implicitly technology was part of the yardstick competition as well. But if you can more accurately have a metric for consumption measures, really focus on making sure that it’s coming from consumption this GDP growth rather than from investment or infrastructure, then I think that it might focus the government’s objective a bit more on thinking about how to make people feel more secure so that they want to save more. For instance, creating more jobs, for instance, more on Social Security spending, on healthcare, on elderly care. Because for the longest period of time, this political economy model was brilliant as scaling up supply, but it was extremely weak at raising personal consumption. Because the incentive does not lie in consumption, it lies in production. So you shift the objectives a little bit and maybe the local government will do more to stimulate consumption.
Lex Fridman
Okay. You mentioned the mayor economy. That seems like an incredibly powerful idea. And you also mentioned that perhaps you’re not sure exactly how perfectly efficient it is and what efficiency there means, how good are you at quickly figuring out the best ideas? That’s what an efficient market does. There’s a component to what you’re saying where you’re a little bit critical of do you really need 80 EV companies? But maybe you do. That seems like an incredible thing to do. So what are the pros and cons of this? Maybe you can speak to it a little bit more.
Okay. You mentioned the mayor economy. That seems like an incredibly powerful idea. And you also mentioned that perhaps you’re not sure exactly how perfectly efficient it is and what efficiency there means, how good are you at quickly figuring out the best ideas? That’s what an efficient market does. There’s a component to what you’re saying where you’re a little bit critical of do you really need 80 EV companies? But maybe you do. That seems like an incredible thing to do. So what are the pros and cons of this? Maybe you can speak to it a little bit more.
Keyu Jin
I think it depends on the timing. If you’re starting something, starting a new emerging strategic sector like EVs or batteries or solar panels, you need the local governments to be involved to mobilize. The big push to coordinate the supply chains. If you wait for the markets to develop over time, it’s going to take a long time. Maybe they don’t even want to do it. Look at the US. The US is very, very behind on some of the new strategic sectors. But once you’ve reached a certain level of market competition, I think the state needs to withdraw or to retreat.
I think it depends on the timing. If you’re starting something, starting a new emerging strategic sector like EVs or batteries or solar panels, you need the local governments to be involved to mobilize. The big push to coordinate the supply chains. If you wait for the markets to develop over time, it’s going to take a long time. Maybe they don’t even want to do it. Look at the US. The US is very, very behind on some of the new strategic sectors. But once you’ve reached a certain level of market competition, I think the state needs to withdraw or to retreat.
Because ultimately the state is not the best at allocating resources, picking winners. You want the private actors, whether it’s the venture funds or through market competition, to ultimately decide who gets the most resources. But in the beginning, that big push is not really in any of the canonical models that I’ve studied in economics in the Western school of thought, state push, state mobilization, state initiation. That’s not there. But I think if you look at EVs, solar panels, even just thinking about the idea of reforms in the first place, that initial state push was vitally important.
The other negative, although I think by and large positive aspect, is I don’t think that we need 80 cities to do their own EV brands, but to get started, maybe that’s what it would’ve taken to drive that incentive. And then ultimately, it’s up to the market to decide who are the last five remaining EV companies through market mechanisms. That’s Chinese-style industrial policy. Industrial policy was heavily criticized and again, if I talk to my Harvard professors, they’ll be very, very, very skeptical about the role of the state, especially in such a major way. But if you look at the Chinese experience, the evidence for success is all there. The cities that have pushed the most on supporting that particular sector ultimately did the best in terms of production, but also in terms of innovation, measured by patents. It’s all in the data. But the downside is that a lot of the capital is wasted. And this is what I also discussed in my book is that it is inefficient, although maybe it’s necessary. The amount of waste of investment plowed into these companies that will ultimately just go under, but also the misallocation-
Keyu Jin
… Ultimately, just go under, but also the misallocation of resources, because it’s led by the state, are some of the downsides, but I guess on balance, it’s been positive, because look at China’s internal combustion engine effort. Nothing, right? Semiconductors. Thanks to Biden, thanks to Trump, it’s improved dramatically, but all these things that they tried to do before, they couldn’t do, but when it’s a new thing, like something that there’s no incumbent, no particular advantage in any country. Actually, China’s really spearheading these sectors.
… Ultimately, just go under, but also the misallocation of resources, because it’s led by the state, are some of the downsides, but I guess on balance, it’s been positive, because look at China’s internal combustion engine effort. Nothing, right? Semiconductors. Thanks to Biden, thanks to Trump, it’s improved dramatically, but all these things that they tried to do before, they couldn’t do, but when it’s a new thing, like something that there’s no incumbent, no particular advantage in any country. Actually, China’s really spearheading these sectors.
Lex Fridman
Can we linger a little bit more on this mayor economy? It just seems like such a powerful thing, where one mayor looks over to the next and looks, even just a trivially simple number like the GDP. Why don’t we do that in the United States or in the West more, just compete on GDP?
Can we linger a little bit more on this mayor economy? It just seems like such a powerful thing, where one mayor looks over to the next and looks, even just a trivially simple number like the GDP. Why don’t we do that in the United States or in the West more, just compete on GDP?
Keyu Jin
Well, you need to be elected and reelected, right? Is that what your electoral base cares about? In China, it’s what the central government, your boss, cares about. If you ask the consumers, they’d rather you spend on social spending, right? The things we talked about that stimulates consumption, on education, on healthcare, things that stimulate demand, it’s te difference of political system.
Well, you need to be elected and reelected, right? Is that what your electoral base cares about? In China, it’s what the central government, your boss, cares about. If you ask the consumers, they’d rather you spend on social spending, right? The things we talked about that stimulates consumption, on education, on healthcare, things that stimulate demand, it’s te difference of political system.
Lex Fridman
Maybe, can you speak to the difference? Another difference is the long-term, multi-generational thinking that permeates Chinese culture, so how does that differ from the western-style capitalism of quarterly-focused thinking?
Maybe, can you speak to the difference? Another difference is the long-term, multi-generational thinking that permeates Chinese culture, so how does that differ from the western-style capitalism of quarterly-focused thinking?
Keyu Jin
The Chinese are both the most patient and the most short-termist economic actors I met. The patience, I don’t need to explain, because I think the political continuity means that they can make plans for two decades ahead, right? Even longer. The investment of Chinese parents in their children is a multi-decade long project, and they save. Chinese people love to save, because they think that they’ll have even more money if they save that money, rather than spend it on a ski vacation. That, I think it’s patently obvious to most people around the world, but I think that most of them would not have known that there’s a very popular motto in China, which is called, “Short, flat, fast.” That’s the impatient part of the Chinese culture, especially with respect to the economy. Short, flat, fast was used to describe a winning volleyball strategy that eventually became adapted to describing the society, as a whole, and economic decision making.
The Chinese are both the most patient and the most short-termist economic actors I met. The patience, I don’t need to explain, because I think the political continuity means that they can make plans for two decades ahead, right? Even longer. The investment of Chinese parents in their children is a multi-decade long project, and they save. Chinese people love to save, because they think that they’ll have even more money if they save that money, rather than spend it on a ski vacation. That, I think it’s patently obvious to most people around the world, but I think that most of them would not have known that there’s a very popular motto in China, which is called, “Short, flat, fast.” That’s the impatient part of the Chinese culture, especially with respect to the economy. Short, flat, fast was used to describe a winning volleyball strategy that eventually became adapted to describing the society, as a whole, and economic decision making.
Lex Fridman
Nice.
Nice.
Keyu Jin
If you’re an investor, you only want to invest in things that you can quickly turn around, make a lot of money, and don’t need to do much work. It also applies to marriages, so a short courtship, a very flat, emotional relationship, and a fast divorce, that is how you see these companies rise within a very short period of time. Of course, investors are only interested in those companies that can turn around and exit in a very short period of time, making many, many multiples. And so, in that sense, people are very, very impatient, right? I sit on some boards of these long-standing companies, and the values are just so different. Even though a lot of these public companies are constrained by the quarterly results and so forth, but the values are about sustaining something, a company, for a long time, thinking about organic growth, thinking about investments for the future, sustainability. Maybe it’s that competition. Maybe it’s the speed that we’re used to in China. People think about short, so this dichotomy is very, very interesting.
If you’re an investor, you only want to invest in things that you can quickly turn around, make a lot of money, and don’t need to do much work. It also applies to marriages, so a short courtship, a very flat, emotional relationship, and a fast divorce, that is how you see these companies rise within a very short period of time. Of course, investors are only interested in those companies that can turn around and exit in a very short period of time, making many, many multiples. And so, in that sense, people are very, very impatient, right? I sit on some boards of these long-standing companies, and the values are just so different. Even though a lot of these public companies are constrained by the quarterly results and so forth, but the values are about sustaining something, a company, for a long time, thinking about organic growth, thinking about investments for the future, sustainability. Maybe it’s that competition. Maybe it’s the speed that we’re used to in China. People think about short, so this dichotomy is very, very interesting.
Lex Fridman
That’s surprising to me.
That’s surprising to me.
Keyu Jin
Yeah. Well, this is-
Yeah. Well, this is-
Lex Fridman
It’s a surprising idea, right? So, that there is a kind of, in the west conception of Chinese culture, Chinese economy, that everything is usually 50, 100, 200 years out. You have this long vision, but you’re basically saying that there’s a deep, in the business sector, impatience about everything.
It’s a surprising idea, right? So, that there is a kind of, in the west conception of Chinese culture, Chinese economy, that everything is usually 50, 100, 200 years out. You have this long vision, but you’re basically saying that there’s a deep, in the business sector, impatience about everything.
Keyu Jin
That’s a transitory phenomenon, I’d say, but if you look at the cheaper stuff, poor quality, that’s a reflection of that, the copying, it’s the same kind of mentality. Just get ahead quickly, but again, that is all shifting. That is all shifting, because China’s now in a different stage of development. If you ask the younger generation, they really care about quality. They care about values, and these companies, these very successful companies, successful in five years, ten years, found themselves in a very difficult position after a longer period of time.
That’s a transitory phenomenon, I’d say, but if you look at the cheaper stuff, poor quality, that’s a reflection of that, the copying, it’s the same kind of mentality. Just get ahead quickly, but again, that is all shifting. That is all shifting, because China’s now in a different stage of development. If you ask the younger generation, they really care about quality. They care about values, and these companies, these very successful companies, successful in five years, ten years, found themselves in a very difficult position after a longer period of time.
That short, flat, fast attitude, which was so popular, especially before the pandemic, that’s actually somewhat disappearing, so in some sense, this economic downturn is not that bad for China, because it made the Chinese realize that it’s not always going to go up, and it made them really look down deeper into what they really should be focused on, that there will be cycles, there will be up and downs, and so these very short-termist thinking and opportunistic way of driving business will ultimately fail. It’s bad for China that we’re having a sustained economic softness, but I think it’s also a very, very important lesson for the Chinese people to go through.
Growing up in China
Lex Fridman
Let’s go, if we can, a bit to the personal. So, you grew up in China. What are some moments from childhood that were maybe defining to your understanding of Chinese culture and Chinese economy?
Let’s go, if we can, a bit to the personal. So, you grew up in China. What are some moments from childhood that were maybe defining to your understanding of Chinese culture and Chinese economy?
Keyu Jin
We look back at those moments when everybody in China was very poor with a bit of nostalgia. I remember no doors were locked. I was in Beijing, and I remember every day in the summer, everybody just went downstairs and chatted with everybody else. It was very social. It was very community-based. The neighbors help each other. We had very, very little, small apartments, very limited access to certain goods. When I was born, even in Beijing, there were these vouchers for how many eggs you can buy, and even Beijing, there were three or four blackouts per week, typically. There was a sense of community. There was a very strong bond between people and within the family, because they were going after a common goal, making your life better, right? Struggling, striving to make your life better, and I remember being on the back of my father’s bike, getting up 6:00 AM every day and going to nursery. That’s the typical day. Not a lot of material goods, but people had a sense of purpose, and that’s radically different. It’s completely different now in China.
We look back at those moments when everybody in China was very poor with a bit of nostalgia. I remember no doors were locked. I was in Beijing, and I remember every day in the summer, everybody just went downstairs and chatted with everybody else. It was very social. It was very community-based. The neighbors help each other. We had very, very little, small apartments, very limited access to certain goods. When I was born, even in Beijing, there were these vouchers for how many eggs you can buy, and even Beijing, there were three or four blackouts per week, typically. There was a sense of community. There was a very strong bond between people and within the family, because they were going after a common goal, making your life better, right? Struggling, striving to make your life better, and I remember being on the back of my father’s bike, getting up 6:00 AM every day and going to nursery. That’s the typical day. Not a lot of material goods, but people had a sense of purpose, and that’s radically different. It’s completely different now in China.
Lex Fridman
Do you think that, if you go to the human condition, do you think that nostalgia has some truth to it, or is it just nostalgia like any other? Is there some aspect of a intense, competitive, vibrant economy that loses some element?
Do you think that, if you go to the human condition, do you think that nostalgia has some truth to it, or is it just nostalgia like any other? Is there some aspect of a intense, competitive, vibrant economy that loses some element?
Keyu Jin
Absolutely.
Absolutely.
Lex Fridman
Of everybody being poor together?
Of everybody being poor together?
Keyu Jin
Well, everybody having a common goal and a sense of community, right? That is what’s missing in these extremely individual-based, capitalist societies, and I think what the Chinese government is striving to do with Chinese, socialistic characteristics is to somehow try to preserve a bit of that socialist character, while still relying on market-based incentives, but if you’re an extremely individual-based society, I think you do lose a lot of that, and I think some of the backlash that we’re seeing from society is a reflection of that, right? People being alone more and more, the death of despair in the US, addiction, that they’re lonely. Competition means that you kind of have to be somewhat badass, and you sometimes put down values and you forsake harmony in order to get ahead. That’s certainly the Chinese society now. That was not the case before.
Well, everybody having a common goal and a sense of community, right? That is what’s missing in these extremely individual-based, capitalist societies, and I think what the Chinese government is striving to do with Chinese, socialistic characteristics is to somehow try to preserve a bit of that socialist character, while still relying on market-based incentives, but if you’re an extremely individual-based society, I think you do lose a lot of that, and I think some of the backlash that we’re seeing from society is a reflection of that, right? People being alone more and more, the death of despair in the US, addiction, that they’re lonely. Competition means that you kind of have to be somewhat badass, and you sometimes put down values and you forsake harmony in order to get ahead. That’s certainly the Chinese society now. That was not the case before.
Lex Fridman
Do you think that’s a natural consequence of capitalism almost always, that you become more individualized, you become lonelier, you feel lesser if you are not winning, and thereby, somehow that breaks down society community more and more?
Do you think that’s a natural consequence of capitalism almost always, that you become more individualized, you become lonelier, you feel lesser if you are not winning, and thereby, somehow that breaks down society community more and more?
Keyu Jin
I think it’s a spectrum, right? And Europe is somewhere in between, I’d say, but Europe also is not as technologically and innovative as the US, but on a social level, there is more social protection for the people. There is a stronger sense of community, I’d argue. It’s not perfect. Ultimately, it is a choice, and this is what I think that China has to decide right? Do you want technological supremacy and radical breakthroughs? Well, yes. If you do, then you have to tolerate that there are going to be some people who are just going to be uncomfortably rich, like in the United States. You can’t say that you detest the financial system for its greed, but then not accept the fact that it is what fuels innovation, right?
I think it’s a spectrum, right? And Europe is somewhere in between, I’d say, but Europe also is not as technologically and innovative as the US, but on a social level, there is more social protection for the people. There is a stronger sense of community, I’d argue. It’s not perfect. Ultimately, it is a choice, and this is what I think that China has to decide right? Do you want technological supremacy and radical breakthroughs? Well, yes. If you do, then you have to tolerate that there are going to be some people who are just going to be uncomfortably rich, like in the United States. You can’t say that you detest the financial system for its greed, but then not accept the fact that it is what fuels innovation, right?
Risky capital fuels uncertain investments, which allows for countries like the United States to be making these breakthroughs. That’s what China wants, but at the same time, China can’t tolerate these extremely rich people around and the power that is accrued to them. They want to be a leader in technology, but then the financial system is not liberalized. It’s highly regulated, but there’s also intervention. Even if we look back at the French civil law, versus the English common law, the former protects creditors, and the latter is more friendly towards debtors, which gives them more breathing space to innovate, but also to fail and to innovate again. That makes a big difference, so it’s all about a spectrum, right? But you can’t have it both ways.
Lex Fridman
We don’t, often enough, have that nationwide conversation about what we want to be as a country. There’s just a group of people yelling, “We don’t want billionaires,” and another group saying, “We don’t want communists or whatever.” It’s a very trivialized kind of chanting, but there is a balance. There is a spectrum, and you get to decide, “Do you like the nice things, the nice toys?”
We don’t, often enough, have that nationwide conversation about what we want to be as a country. There’s just a group of people yelling, “We don’t want billionaires,” and another group saying, “We don’t want communists or whatever.” It’s a very trivialized kind of chanting, but there is a balance. There is a spectrum, and you get to decide, “Do you like the nice things, the nice toys?”
Keyu Jin
And the power that the US has.
And the power that the US has.
First time in the US
Lex Fridman
And the power, the geopolitical power, the military power, cultural power, influence on the rest of the world? Yeah, you get to choose which do you want. So, the first time you went to US, what was that like? You mentioned Harvard. How did that change your understanding of the world?
And the power, the geopolitical power, the military power, cultural power, influence on the rest of the world? Yeah, you get to choose which do you want. So, the first time you went to US, what was that like? You mentioned Harvard. How did that change your understanding of the world?
Keyu Jin
Well, it’s funny that we’re talking about this now, because I was able to go to the US on a scholarship to an American high school, because the US, at that time, was open arms, all open arms towards international students. They kind of wanted to be the country that was going to educate the future leaders of the world and their elitist institutions, like Harvard, was really going to be, they’re the center of the world. So, they welcomed students like me and many, many others to be exchange students to study in the US, and we thought, “Wow. We’ve never seen a more generous country.” I was able to go to an American high school and live with an American family, which was, wow, can I say a big change from China, not only because I was plucked from the Communist Youth League party and then straight to supporting their democratic campaign, because the host family was running for State Attorney general in New York.
Well, it’s funny that we’re talking about this now, because I was able to go to the US on a scholarship to an American high school, because the US, at that time, was open arms, all open arms towards international students. They kind of wanted to be the country that was going to educate the future leaders of the world and their elitist institutions, like Harvard, was really going to be, they’re the center of the world. So, they welcomed students like me and many, many others to be exchange students to study in the US, and we thought, “Wow. We’ve never seen a more generous country.” I was able to go to an American high school and live with an American family, which was, wow, can I say a big change from China, not only because I was plucked from the Communist Youth League party and then straight to supporting their democratic campaign, because the host family was running for State Attorney general in New York.
Lex Fridman
Wow.
Wow.
Keyu Jin
So, I was kind of going to these conventions, handing out flyers, and trying to get votes and, I don’t know, in Chinatown or something, but it was so interesting to see that’s how the system worked. But in the course of doing that, I realized that people had a very simplistic understanding about China. Even when I was 14, I decided that one thing I wanted to do was to dispel some of these deep myths about China, because the China that they knew, and again, it was all the three T’s back in the late 1990s: Taiwan, Tibet, and Tiananmen Square. They thought about China, they thought about these three things.
So, I was kind of going to these conventions, handing out flyers, and trying to get votes and, I don’t know, in Chinatown or something, but it was so interesting to see that’s how the system worked. But in the course of doing that, I realized that people had a very simplistic understanding about China. Even when I was 14, I decided that one thing I wanted to do was to dispel some of these deep myths about China, because the China that they knew, and again, it was all the three T’s back in the late 1990s: Taiwan, Tibet, and Tiananmen Square. They thought about China, they thought about these three things.
I was like, “Well, that’s strange, because that’s not how I’m feeling in China, with all this bidding for the Olympics before 2000 and all these buildings going up and down, all this excitement about joining the WTO, all these radical reforms that are taking place, and then all this effervescence that you feel in the air.” It’s not GDP growth as numbers. You actually see it, and they’re describing China as if it was a place shredded with white terror, and so I thought, “Hm. That’s interesting. There’s a big gap, big gap of understanding,” and even today, that many years later, people know China a little bit more, but the sentiment hasn’t profoundly changed.
Lex Fridman
It’s still the three Ts, I feel like.
It’s still the three Ts, I feel like.
Keyu Jin
Some variation of that.
Some variation of that.
Lex Fridman
So, what about the level of misunderstanding of Chinese people of the West? Is there a similar level of misunderstanding the other direction as well?
So, what about the level of misunderstanding of Chinese people of the West? Is there a similar level of misunderstanding the other direction as well?
Keyu Jin
I don’t think to the same extent, because there’s Hollywood. You can see daily American life, although it might not be totally realistic. There was a huge amount of admiration of US technology innovation, but also the American dream. I think our newspapers, even though there’s bias everywhere, is not focused only on reporting the really bad stuff and portraying a negative side. I think these few years have been a little bit different, but so many students went to the US, right? So many people travel to the US, and this is an interesting thing. I’ve rarely met an American who has been to China and who still goes on about how bad China is. I think that going to China makes all the difference.
I don’t think to the same extent, because there’s Hollywood. You can see daily American life, although it might not be totally realistic. There was a huge amount of admiration of US technology innovation, but also the American dream. I think our newspapers, even though there’s bias everywhere, is not focused only on reporting the really bad stuff and portraying a negative side. I think these few years have been a little bit different, but so many students went to the US, right? So many people travel to the US, and this is an interesting thing. I’ve rarely met an American who has been to China and who still goes on about how bad China is. I think that going to China makes all the difference.
Lex Fridman
I feel that’s one of the big gaps of my life that I need to alleviate, is to travel in a real way for a long time to really experience the people and the cultures, and China’s a big place.
I feel that’s one of the big gaps of my life that I need to alleviate, is to travel in a real way for a long time to really experience the people and the cultures, and China’s a big place.
Keyu Jin
Mm-hmm. Go dig deep, and don’t just go to Beijing and Shanghai.
Mm-hmm. Go dig deep, and don’t just go to Beijing and Shanghai.
China’s government vs business sector
Lex Fridman
Let’s go back to the economics, so can you just dig a little deeper on the relationship in China, between the government and the companies and the private sector? So, how much freedom do companies have?
Let’s go back to the economics, so can you just dig a little deeper on the relationship in China, between the government and the companies and the private sector? So, how much freedom do companies have?
Keyu Jin
Another big misunderstanding, and a fundamental one, is that people somehow think that the state suppresses the private sector. It’s not at all as simple as that. For the most part, if we look at the local government’s incentive system, they want to help the best, private companies, which are the most promising, because it makes them look good. It adds to their GDP. It adds to the jobs, investment. They are so helpful to these private companies. Actually, I know many of these local government officials working tirelessly, day and night, especially in bad times, to coordinate between debtors and creditors, and to smooth out and define relationships with banks. They want to help these private companies, because again, their incentives are aligned. Deepseek is a private company, by the way, so it has done the country proud, and why would the state want to go and suppress these private companies, which ultimately is kind of a beacon, represents a beacon success for China.
Another big misunderstanding, and a fundamental one, is that people somehow think that the state suppresses the private sector. It’s not at all as simple as that. For the most part, if we look at the local government’s incentive system, they want to help the best, private companies, which are the most promising, because it makes them look good. It adds to their GDP. It adds to the jobs, investment. They are so helpful to these private companies. Actually, I know many of these local government officials working tirelessly, day and night, especially in bad times, to coordinate between debtors and creditors, and to smooth out and define relationships with banks. They want to help these private companies, because again, their incentives are aligned. Deepseek is a private company, by the way, so it has done the country proud, and why would the state want to go and suppress these private companies, which ultimately is kind of a beacon, represents a beacon success for China.
Now, on how much freedom they have, it’s really ranged from too much freedom. That’s part of the problem, where you have defense companies buying art auction houses, real estate companies, like Evergrande, buying soccer clubs, doing EVs, companies investing in real estate that has nothing to do with their core business. That’s how much latitude were given to private companies, and there were consequences. They were not reined in, and then you go to the other extremes, where they’re scolded, they’re reprimanded, they’re reined in, and they’re kind of folded into submission so that is the whole spectrum. You have the whole range, but I guess what we’re really getting at is it is a country that is moving from a no-rule of law or very little rule of law, very immature markets, to something that is being gradually established: bankruptcy laws, corruption laws, rules and regulations on what’s possible.
One interesting point is that, in China, you ask the companies to innovate first, and then you regulate after, right? So, that has led to things like P2P platforms. It’s led to lots of kind of financial innovations, some of which has actually been very helpful and good, some of which had been disastrous, but the intention to regulate after the fact is to really not slow down or hinder the innovation. This is a very different approach from Europe. You regulate first, and then companies have to work around that. So, this is why the Chinese economy is so complex. You cannot reduce it to simply a statement saying, “The state is unhelpful for the private,” or something like that. There are certain sectors where these SOEs dominate, when it comes to national security in terms of energy, but let’s not focus on these few sectors. By and large, most of the economy, if you actually admit to the fact that China’s highly innovative and highly entrepreneurial, means that it must be the private sector that is driving the show.
Communism and capitalism
Lex Fridman
Innovate first, regulate after, really interesting. I also, in my mind, am contrasting it with the way the Soviet Union and Russia, since operated. That doesn’t sound at all like this model, and it’s interesting that countries that, at least on the surface, had a similar cultural communist problems, the bureaucracies that form inside the communist state. It just seems that China broke away from that somehow. I don’t understand exactly what happened.
Innovate first, regulate after, really interesting. I also, in my mind, am contrasting it with the way the Soviet Union and Russia, since operated. That doesn’t sound at all like this model, and it’s interesting that countries that, at least on the surface, had a similar cultural communist problems, the bureaucracies that form inside the communist state. It just seems that China broke away from that somehow. I don’t understand exactly what happened.
Keyu Jin
In the West, they group these economies together, as if they’re the same thing. No, it’s not the same at all. There’s so many differences, so much more flexibility. You can have dynamic entrepreneurialism, at the same time have socialist characteristics, and I think this is what China has been able to shape and mold, a unique model that balances between government industry, between state coordination and market mechanisms, and between individualism and communalism. It’s not necessarily black and white. You can have all these things at the same time.
In the West, they group these economies together, as if they’re the same thing. No, it’s not the same at all. There’s so many differences, so much more flexibility. You can have dynamic entrepreneurialism, at the same time have socialist characteristics, and I think this is what China has been able to shape and mold, a unique model that balances between government industry, between state coordination and market mechanisms, and between individualism and communalism. It’s not necessarily black and white. You can have all these things at the same time.
Lex Fridman
So, what are the pros and cons of being an entrepreneur in China versus the west? If you get a choice, you have a dream, you want to build epic things, and you get to choose where to start that business, what are the pros and cons of each path?
So, what are the pros and cons of being an entrepreneur in China versus the west? If you get a choice, you have a dream, you want to build epic things, and you get to choose where to start that business, what are the pros and cons of each path?
Keyu Jin
In China, the speed is just awe-inspiring. You have a good idea, you implement it. You realize your dream very fast, because there’s also the support system, right? The infrastructure there, the digital infrastructure there, the engineers are there, the talent is there, and they’re cheap. The market competition is there to keep you going. The consumers give you a very, very fast feedback. Look at Xiaomi. It was making phones, and now it makes one of the world’s best EVs, 270,000 cars sold in one day a few days ago with a new model.
In China, the speed is just awe-inspiring. You have a good idea, you implement it. You realize your dream very fast, because there’s also the support system, right? The infrastructure there, the digital infrastructure there, the engineers are there, the talent is there, and they’re cheap. The market competition is there to keep you going. The consumers give you a very, very fast feedback. Look at Xiaomi. It was making phones, and now it makes one of the world’s best EVs, 270,000 cars sold in one day a few days ago with a new model.
Lex Fridman
Wow.
Wow.
Keyu Jin
They were phone makers, so there’s an advantage to that, okay? But I would not feel safe, not because of danger of expropriation or nothing like that, but the bankruptcy laws are not there, right? It’s not necessarily always fair competition. Things don’t happen necessarily in an orderly manner. If you have a competitor, you can have a very evil competitor, and evil competitors are there everywhere in China. They would call the police on you, put you in jail, spread false rumors about you. Maybe that happens also in the US, but there’s a different level in China. Also, the mold that you can have to protect yourself, the IP protection, that’s much weaker in China, because the legal system is not very effective. If you have a good idea, you’ll be copied, and there’s a lot of work. You have to dine and wine with the local governments. I mean, that’s not allowed anymore, by the way, but you dine and wine, figuratively speaking. You have to have a very good relationship with them. That’s a different kind of work.
They were phone makers, so there’s an advantage to that, okay? But I would not feel safe, not because of danger of expropriation or nothing like that, but the bankruptcy laws are not there, right? It’s not necessarily always fair competition. Things don’t happen necessarily in an orderly manner. If you have a competitor, you can have a very evil competitor, and evil competitors are there everywhere in China. They would call the police on you, put you in jail, spread false rumors about you. Maybe that happens also in the US, but there’s a different level in China. Also, the mold that you can have to protect yourself, the IP protection, that’s much weaker in China, because the legal system is not very effective. If you have a good idea, you’ll be copied, and there’s a lot of work. You have to dine and wine with the local governments. I mean, that’s not allowed anymore, by the way, but you dine and wine, figuratively speaking. You have to have a very good relationship with them. That’s a different kind of work.
Lex Fridman
The wine and dine and the evil competitors is an interesting challenge. That, in some maybe distant ways, akin to the problems of the Soviet Union, I think, I guess in the United States there’s less of that, and I don’t even know if that’s based on laws, because there’s a lot of lawyers in the US that could do the same kind of evil competitor stuff, technically.
The wine and dine and the evil competitors is an interesting challenge. That, in some maybe distant ways, akin to the problems of the Soviet Union, I think, I guess in the United States there’s less of that, and I don’t even know if that’s based on laws, because there’s a lot of lawyers in the US that could do the same kind of evil competitor stuff, technically.
Keyu Jin
That’s true. The potential negative ramifications are there, but I think personal protection is a big difference. If you make a mistake, if your company’s not run well, you go to jail. I think that the US is much, much more tolerant on entrepreneurship, entrepreneurs on failure.
That’s true. The potential negative ramifications are there, but I think personal protection is a big difference. If you make a mistake, if your company’s not run well, you go to jail. I think that the US is much, much more tolerant on entrepreneurship, entrepreneurs on failure.
Jack Ma
Lex Fridman
Since we’re talking about it, there was a lot of controversy around Jack Ma “disappearing” reappearing a bit later, and there’s been sort of rumors of some tense relationships that he has with the Chinese government. What is important to understand about the whole situation? To what degree is it reflective of the issues entrepreneurs face in China?
Since we’re talking about it, there was a lot of controversy around Jack Ma “disappearing” reappearing a bit later, and there’s been sort of rumors of some tense relationships that he has with the Chinese government. What is important to understand about the whole situation? To what degree is it reflective of the issues entrepreneurs face in China?
Keyu Jin
In the US, capital controls politics, one could argue. In China, it has to be the other way around. Capital must be reigned in by politics. As part of the capitalist class, do not have the ambition to exceed the powers of the political class, is really at the core of it, I’d say, is the biggest difference between US and China. There are important details that I think the West has not fully provided to the public. For instance, and financial, as innovative as it was, was doing banking jobs without being regulated like a bank, right? So that, obviously, poses a host of financial stability questions and rules and regulations and so forth, so the fact that IPO was halted, you could say that there were strong, economic, regulatory grounds for that.
In the US, capital controls politics, one could argue. In China, it has to be the other way around. Capital must be reigned in by politics. As part of the capitalist class, do not have the ambition to exceed the powers of the political class, is really at the core of it, I’d say, is the biggest difference between US and China. There are important details that I think the West has not fully provided to the public. For instance, and financial, as innovative as it was, was doing banking jobs without being regulated like a bank, right? So that, obviously, poses a host of financial stability questions and rules and regulations and so forth, so the fact that IPO was halted, you could say that there were strong, economic, regulatory grounds for that.
But I think, more broadly speaking, if you’re an entrepreneur, part of the capitalist class, keep your head down, make money, and that’s fine, right? Do some philanthropy. There are also many, many other billionaires that are just fine, that are actually very much in favor of the political leadership, and they do their thing. Now, I’m not saying what’s right, what’s wrong. It’s just a very, very different culture and different country. In the US, it’s great to be colorful. You have a very, very colorful president. He would never have been able to make it in China. You have the likes of Elon Musk. It’s great to be different. It’s great to stand out. You do not want to stand out in China.
The moral of the story is that the top leadership understands that it needs these top entrepreneurs, the likes of Jack Ma. They have done so many great things for the country, even for the world, but in China, garnering too much influence and power, even through social media, doesn’t make you look that great. It’s not a good thing for you, personally. There’s a saying in China that you just don’t want to be the tallest tree. The tallest tree gets the most wind. I don’t agree at all with the Western conclusion that this anecdote, this story, has meant that entrepreneurs don’t want to be entrepreneurs anymore, the young kids don’t aspire to be people like Jack Ma. That’s not true at all. The incentives are still there. It’s a different kind of rich, elite class in China.
Lex Fridman
So, on what dimensions do you think that the height of the tree is measured? Is it more about just mouthing off in public? So, can you still be the richest person in China and actually not clash with the state?
So, on what dimensions do you think that the height of the tree is measured? Is it more about just mouthing off in public? So, can you still be the richest person in China and actually not clash with the state?
Keyu Jin
Absolutely. Don’t be too outspoken. Don’t try to get too much attention and too much influence and just, again, it’s a cultural thing, but just keep your head down, be humble, contribute to society, do philanthropy, work, collaborate with the government, and you’re kind of okay.
Absolutely. Don’t be too outspoken. Don’t try to get too much attention and too much influence and just, again, it’s a cultural thing, but just keep your head down, be humble, contribute to society, do philanthropy, work, collaborate with the government, and you’re kind of okay.
Lex Fridman
So, the signal the Jack Ma situation sends to the entrepreneurs in China is not, “Don’t be an entrepreneur.” It’s more like, “Don’t…”
So, the signal the Jack Ma situation sends to the entrepreneurs in China is not, “Don’t be an entrepreneur.” It’s more like, “Don’t…”
Keyu Jin
Be too colorful.
Be too colorful.
Lex Fridman
Don’t be too colorful, and colorful means you can be colorful about the technical details of your technology, but don’t be colorful about Xi Jinping and politics, and just stay out.
Don’t be too colorful, and colorful means you can be colorful about the technical details of your technology, but don’t be colorful about Xi Jinping and politics, and just stay out.
Keyu Jin
Yeah. Stay out of politics, but I just want to say, that said, Jack Ma was really an emblem of extreme success for China, and the Chinese entrepreneurs look up to him. That’s really important. It was a signal that, unfortunately, was misconstrued by the side and by also outside world, but it’s laid a different path for what these entrepreneurs should be doing.
Yeah. Stay out of politics, but I just want to say, that said, Jack Ma was really an emblem of extreme success for China, and the Chinese entrepreneurs look up to him. That’s really important. It was a signal that, unfortunately, was misconstrued by the side and by also outside world, but it’s laid a different path for what these entrepreneurs should be doing.
Lex Fridman
What do you think happened to him? So, he’s now, I think, living in Japan.
What do you think happened to him? So, he’s now, I think, living in Japan.
Keyu Jin
That’s by choice.
That’s by choice.
Lex Fridman
By choice.
By choice.
Keyu Jin
No. He’s an extremely fascinating character, and if he were in the US, he’d thrive. Funny, witty, smart, wise, creative, loves a good life, and I think it’s by choice that he’s roaming around the world, given that he has more free time.
No. He’s an extremely fascinating character, and if he were in the US, he’d thrive. Funny, witty, smart, wise, creative, loves a good life, and I think it’s by choice that he’s roaming around the world, given that he has more free time.
Lex Fridman
You think he loves China?
You think he loves China?
Keyu Jin
All of them do. All of them do, because-
All of them do. All of them do, because-
Keyu Jin
All of them do. All of them do because their lives, their destinies were totally changed because of China, because of the government, because of Deng Xiaoping, because of everything.
All of them do. All of them do because their lives, their destinies were totally changed because of China, because of the government, because of Deng Xiaoping, because of everything.
Lex Fridman
So I know a lot of people from the former Soviet Union, and there’s a deep resentment of broken promises, broken dreams. So that is not something you see.
So I know a lot of people from the former Soviet Union, and there’s a deep resentment of broken promises, broken dreams. So that is not something you see.
Keyu Jin
That’s not how I would describe that generation and their feelings towards China. Of course, you always get exceptions, the ones who have moved to the US and who wants a democracy, but by and large, people are deeply grateful to China, the Chinese government, the Communist party, if you want to label it as that, because they’ve seen their lives be totally transformed. I mean, Jack Ma went from being a school teacher to becoming one of the most powerful people in the world. I mean, if you didn’t have China, how could that have happened? Right?
That’s not how I would describe that generation and their feelings towards China. Of course, you always get exceptions, the ones who have moved to the US and who wants a democracy, but by and large, people are deeply grateful to China, the Chinese government, the Communist party, if you want to label it as that, because they’ve seen their lives be totally transformed. I mean, Jack Ma went from being a school teacher to becoming one of the most powerful people in the world. I mean, if you didn’t have China, how could that have happened? Right?
China’s view on innovation and copying ideas
Lex Fridman
Can you speak to the thing you mentioned a few times, which is the difference in American versus Chinese or maybe Western versus Chinese approach to entrepreneurship, zero to one versus one to N? Maybe can you explain that and what will it take for China to become a consistent zero to one innovator for the individual entrepreneurs to create totally new things versus doing the things you mentioned about speed and scale?
Can you speak to the thing you mentioned a few times, which is the difference in American versus Chinese or maybe Western versus Chinese approach to entrepreneurship, zero to one versus one to N? Maybe can you explain that and what will it take for China to become a consistent zero to one innovator for the individual entrepreneurs to create totally new things versus doing the things you mentioned about speed and scale?
Keyu Jin
The US will lead for some time on breakthroughs on disruptive technologies, the zero to one technologies that ultimately change the world. But innovation is a process. It goes from invention to production and commercialization and diffusion, diffusing technology throughout all parts of the economy. And on those two stages, I think that China has a unique advantage, even if it still can’t do the zero to one breakthroughs, because in the end, how much this technology is adopted by the countries and by the various parts of the economy is fundamentally crucial to how much productivity will be unleashed. And China’s innovation currently, the DeepSeek is really one example, and I think it’s really the beginning of the scale-based leading edge technology, cost-cutting driven kind of innovation model, could be just as powerful, maybe even more effective and powerful than the breakthroughs. And it’s a very different approach to innovation.
The US will lead for some time on breakthroughs on disruptive technologies, the zero to one technologies that ultimately change the world. But innovation is a process. It goes from invention to production and commercialization and diffusion, diffusing technology throughout all parts of the economy. And on those two stages, I think that China has a unique advantage, even if it still can’t do the zero to one breakthroughs, because in the end, how much this technology is adopted by the countries and by the various parts of the economy is fundamentally crucial to how much productivity will be unleashed. And China’s innovation currently, the DeepSeek is really one example, and I think it’s really the beginning of the scale-based leading edge technology, cost-cutting driven kind of innovation model, could be just as powerful, maybe even more effective and powerful than the breakthroughs. And it’s a very different approach to innovation.
The Chinese companies focus on solutions, problem-solving. Again, that comes back to the education system, right? You’re giving a problem. I’m going to find the answer. The Chinese students can do it. You want them to write their own question, they can’t do it, right? I’m exaggerating a little bit, but it’s a little like that, right? They see a problem. They’re going to go after it. They’re going to find the best solution. And that’s really, really useful, right? Because we don’t need, or developing countries especially don’t need these frontier technologies that they can’t use. And China currently has this AI Plus program, which is about pushing AI into every single plausible sector with the help of the state. So adoption diffusion is very important. Why China can’t do breakthroughs or can’t do zero to one technologies? I think at the root of it, and there are some deeper, we talked about the proximate reasons, the short, flat, fast, for instance, right? You don’t want to spend too much time on investigating something that you don’t even know if it’s commercially viable.
So basic research is still weaker than in the US universities, but also this kind of intrinsic motivation. It’s very different, right? In China, it’s driven by extrinsic motivation. You are rewarded by compensation, financial compensation, all these kind of extrinsic motivation is what drives you. But intrinsic motivation, pursuit of knowledge for knowledge’s sake, that was deep in the Confucius philosophies. But of course poverty has changed all that. The profound commitment to scholarship, to research, which we know is very much true in the US universities, it’s starting. It’s starting, but it’s not there. So I think these two approaches are actually quite compatible with each other. I don’t know what all this fuss is about, right? China uses technology very well. It can scale up and reduce costs, and then it can spread it around. And the US makes the highest value added by inventing these technologies. But again, diffusion matters.
Lex Fridman
Well, yeah. The things you mentioned, the scale, the manufacturing, the diffusion, from a economics perspective, you wonder which is the more important skill to have. And it seems like the cost-cutting, the efficient, large scale, fast manufacture, the diffusion is much more important for the success and the growth of the economy.
Well, yeah. The things you mentioned, the scale, the manufacturing, the diffusion, from a economics perspective, you wonder which is the more important skill to have. And it seems like the cost-cutting, the efficient, large scale, fast manufacture, the diffusion is much more important for the success and the growth of the economy.
Keyu Jin
I think where it ultimately leads to an impact on the economy, that’s more important. It’s this persistent question we have. Why don’t we see the productivity in the numbers, right? You’re in AI. AI, we had long periods of investment. You hadn’t seen it in the numbers until maybe even recently, and it’s still very slow. But China’s pushing that in the sectors, robotics, AI, cloud, industrial, Internet of Things, and even companies like Huawei, I think it’s gotten a little bit of too bad of a rep in the US, but American engineers working for Huawei said that they’re so happy working for Huawei. The intent focus on innovation, but also on solution driven innovations in Africa, in rural areas really changes people’s lives. It doesn’t change the world, but it changes individual’s lives.
I think where it ultimately leads to an impact on the economy, that’s more important. It’s this persistent question we have. Why don’t we see the productivity in the numbers, right? You’re in AI. AI, we had long periods of investment. You hadn’t seen it in the numbers until maybe even recently, and it’s still very slow. But China’s pushing that in the sectors, robotics, AI, cloud, industrial, Internet of Things, and even companies like Huawei, I think it’s gotten a little bit of too bad of a rep in the US, but American engineers working for Huawei said that they’re so happy working for Huawei. The intent focus on innovation, but also on solution driven innovations in Africa, in rural areas really changes people’s lives. It doesn’t change the world, but it changes individual’s lives.
Lex Fridman
What’s the feeling that Chinese entrepreneurs have about copying technology? Because I think one of the cultural things in the US, it’s just really not respected if you copy, so that’s seen as a big problem. And is there some degree to where in China it’s not?
What’s the feeling that Chinese entrepreneurs have about copying technology? Because I think one of the cultural things in the US, it’s just really not respected if you copy, so that’s seen as a big problem. And is there some degree to where in China it’s not?
Keyu Jin
No, unfortunately this is a big cultural difference. Our sense of property rights is actually quite different from the US. I think that will change over time. But absolutely, you’re right. They have no qualms about copying as long as it leads to success, right? That’s the difference in values. As we mentioned in the beginning, you asked why the level of competition is so fierce. Well, they all do the same thing. Once they’ve seen one successful thing, everybody does the same thing. You’d have no respect for doing that in the us. But in China, it’s all fine. But I think that over time it will change. Just give it a little bit of time.
No, unfortunately this is a big cultural difference. Our sense of property rights is actually quite different from the US. I think that will change over time. But absolutely, you’re right. They have no qualms about copying as long as it leads to success, right? That’s the difference in values. As we mentioned in the beginning, you asked why the level of competition is so fierce. Well, they all do the same thing. Once they’ve seen one successful thing, everybody does the same thing. You’d have no respect for doing that in the us. But in China, it’s all fine. But I think that over time it will change. Just give it a little bit of time.
Lex Fridman
So fundamentally, it’s a bad thing.
So fundamentally, it’s a bad thing.
Keyu Jin
In the end, if China’s all about innovation technology, you cannot not have very strict IP protection.
In the end, if China’s all about innovation technology, you cannot not have very strict IP protection.
Lex Fridman
Sure.
Sure.
Keyu Jin
And ultimately, again, we’re still in the short, flat, fast stage. When we graduate from that stage, you’re going to have very different views about these things and you’re going to try to diversify and do different things. But again, it’s a stage. Chinese people were hungry. They’re still a little bit hungry. They’re not going to be as hungry in the future.
And ultimately, again, we’re still in the short, flat, fast stage. When we graduate from that stage, you’re going to have very different views about these things and you’re going to try to diversify and do different things. But again, it’s a stage. Chinese people were hungry. They’re still a little bit hungry. They’re not going to be as hungry in the future.
DeepSeek moment
Lex Fridman
So can you describe the DeepSeek moment and DeepSeek as it represents what China’s thinking about in the space of AI? And does China have a chance at outrunning US in the AI race?
So can you describe the DeepSeek moment and DeepSeek as it represents what China’s thinking about in the space of AI? And does China have a chance at outrunning US in the AI race?
Keyu Jin
DeepSeek was a surprise to the world, but I don’t think it was that much of a surprise to the same degree to the Chinese. And remember that DeepSeek happened in times of crisis, urgency, not in times of comfort. A lot of these technological breakthroughs and leapfrogging happens in times of crisis. This is called crisis innovation. And you got to thank the US for that. When the Chinese were comfortably importing chips from the US, the whole industry stalled for 20 years. I mean, why would you plow in billions, tens and billions and even more when you can just import the best? You don’t want to do your own innovation. It’s because of these export controls, these sanctions on these companies, that Chinese companies in the Chinese state felt an existential crisis a few years ago by being cut off from these critical components. And guess what happened? In a short amount of time, a degree of domestic capacity ramping up and catch up has been nothing short of remarkable. Again, thanks to US truculence on technology.
DeepSeek was a surprise to the world, but I don’t think it was that much of a surprise to the same degree to the Chinese. And remember that DeepSeek happened in times of crisis, urgency, not in times of comfort. A lot of these technological breakthroughs and leapfrogging happens in times of crisis. This is called crisis innovation. And you got to thank the US for that. When the Chinese were comfortably importing chips from the US, the whole industry stalled for 20 years. I mean, why would you plow in billions, tens and billions and even more when you can just import the best? You don’t want to do your own innovation. It’s because of these export controls, these sanctions on these companies, that Chinese companies in the Chinese state felt an existential crisis a few years ago by being cut off from these critical components. And guess what happened? In a short amount of time, a degree of domestic capacity ramping up and catch up has been nothing short of remarkable. Again, thanks to US truculence on technology.
Now, I’m sure there are many aspects of hyperbole related to DeepSeek, but it just shows you that the gap is much smaller between the China and the US on leading edge technologies than what was expected that these export controls were not effective. They may have even backfired. And it shows you that China has this relentless focus on taking some of the existing technologies and using scale and the advantages to cost and to diffuse. And this is just the beginning. I think it will happen in many other industries as well, including in semiconductors, and that’s a Chinese approach. Now, there’s an interesting dilemma here, which is that this is happening in a time of extreme economic softness, slowdown and missed uncertainty, trade wars, a lack of confidence, slowdown in private investment and consumption, a withdrawal of foreign investment from China, especially the US venture funding.
Imagine what China would’ve been like, let’s say if the economy was doing better. But you could also argue that it’s because people feel threatened that they make more leaves. Now, I wish the world is not… We don’t have to drive each other to the corners to do something great, but that is the reality. And I don’t think that there’s an easy say between who wins because I think the winning idea is part of the old playbook. You’re all kind of part of a network. Different countries, different players have different choke points on each other. I don’t think it’s just about the US and China.
And what’s more, you use your leverage once, and that leverage has a half-life. It becomes a lot less effective the second time around because other countries, other companies are going to try to substitute away. If China uses the rare earth leverage, which I think it is now a little bit, there will be alternatives and substitutes. Got to be very, very careful of what coercion leverage means. Same thing with the US, right? So I think this is all the old thinking of who wins, who dominates. I think we need a new playbook.
CHIPS Act
Lex Fridman
So to you, maybe when you refer to Biden and Trump, if you go back to Biden, it would be the CHIPS Act. So the export controls created unintended, unexpected effect where it had the reverse geopolitical effect.
So to you, maybe when you refer to Biden and Trump, if you go back to Biden, it would be the CHIPS Act. So the export controls created unintended, unexpected effect where it had the reverse geopolitical effect.
Keyu Jin
I hope it was unintentional. Otherwise, you’d be questioning the level of intelligence of the US administration. But I think that the things they laid out did the opposite of what was intended. It sped up domestic capacity. It motivated the whole country to do this whole of a nation program to go after technologies, kind of like the way they go after Olympics, Olympic gold medals. They wanted to maximize Olympic gold medals, and they put the whole nation at work and all the resources, and that’s what China did. Huawei, another example, they were sanctioned. Guess what? They have come back to life stronger than ever before. And this is not unique to this episode. If we look throughout history, these blockades don’t work. The continental system actually indirectly led to Industrial Revolution in the UK. When the Spanish blockade, the Portuguese, they came up with a very ferocious, forceful naval power. And you’re talking about China here. They just don’t lie down and lie flat and say, “Oh, we give up.” Right? They’re more motivated than ever before.
I hope it was unintentional. Otherwise, you’d be questioning the level of intelligence of the US administration. But I think that the things they laid out did the opposite of what was intended. It sped up domestic capacity. It motivated the whole country to do this whole of a nation program to go after technologies, kind of like the way they go after Olympics, Olympic gold medals. They wanted to maximize Olympic gold medals, and they put the whole nation at work and all the resources, and that’s what China did. Huawei, another example, they were sanctioned. Guess what? They have come back to life stronger than ever before. And this is not unique to this episode. If we look throughout history, these blockades don’t work. The continental system actually indirectly led to Industrial Revolution in the UK. When the Spanish blockade, the Portuguese, they came up with a very ferocious, forceful naval power. And you’re talking about China here. They just don’t lie down and lie flat and say, “Oh, we give up.” Right? They’re more motivated than ever before.
Lex Fridman
So the lesson is don’t force people or nations into a corner.
So the lesson is don’t force people or nations into a corner.
Keyu Jin
Yeah. You make them have a very comfortable situation and they tend to become complacent and they stagnate.
Yeah. You make them have a very comfortable situation and they tend to become complacent and they stagnate.
Tariffs and Trade
Lex Fridman
All right. So can you talk through the whole saga of the Trump’s tariffs that’s still going on, especially tariffs on China? From your perspective as an economist, to what degree was it justified? To what degree was it effective? To what degree is it bad policy for US, for the west, for the world, also for China?
All right. So can you talk through the whole saga of the Trump’s tariffs that’s still going on, especially tariffs on China? From your perspective as an economist, to what degree was it justified? To what degree was it effective? To what degree is it bad policy for US, for the west, for the world, also for China?
Keyu Jin
China has been preparing for this for the last five years, and for the return of Trump and for Trump’s maniac trade policies. You’d think that Trump also had five years to prepare for this battle with China. It didn’t show. You can say that the Chinese, at least this time around, have played their hand pretty well when dealing with Trump’s tariff threats and the trade war with a level of calibrated assertiveness. They have really thought through everything very elaborately. And look, this is not good for either country. Let’s just be clear. It’s bad for US and China and it’s bad for the world. And every country has a stake in the US-China trade war because whether you trade directly or indirectly with China, you’re going to be affected. They are one of the largest intermediate exporters in the world. And Chinese manufacturing goods anchor global manufacturing prices.
China has been preparing for this for the last five years, and for the return of Trump and for Trump’s maniac trade policies. You’d think that Trump also had five years to prepare for this battle with China. It didn’t show. You can say that the Chinese, at least this time around, have played their hand pretty well when dealing with Trump’s tariff threats and the trade war with a level of calibrated assertiveness. They have really thought through everything very elaborately. And look, this is not good for either country. Let’s just be clear. It’s bad for US and China and it’s bad for the world. And every country has a stake in the US-China trade war because whether you trade directly or indirectly with China, you’re going to be affected. They are one of the largest intermediate exporters in the world. And Chinese manufacturing goods anchor global manufacturing prices.
The cumulative tariff burdens, when you get to Canada, when you get to Mexico, when you get to any other final destination, these tariffs will affect you. So it’s clearly very, very bad for the world. China’s core principles, and I think that this is not well understood from the rest of the world towards the US, and something that they have kept up is equivalence, reciprocity and realism. China’s not going to lower tariffs unless the US does. You kind of stand up to Trump like a man. That’s the only way to deal with Trump. That’s its view. The deal has to be realistic. The phase one deal of the last time wasn’t realistic, and China thinks, look, the US is going to use this as a leverage, right? That’s not possible. This can’t be seen as political concession. The deal has to be seen as mutual commerce.
So where China can have room to negotiate is opening up things like services. American banks, American financial institutions have a lot of business to do in China. They can buy a limited number of more goods. They can discuss about transparency around rules and regulations on e-commerce, on data. All of that is fine. But don’t confound economic issues with political issues. Hong Kong, Taiwan is not part of the deal, by the way, in case anyone was wondering. Trying to change China’s state hybrid private sector model, don’t go there. Anything that challenges China’s technology, security, that’s not really part of the discussion. I think that people have to be clear about also what China thinks and wants, and also the Chinese to be clear about what Trump wants, although I don’t know anybody, even Trump himself knows exactly what he wants, in order for these very complex negotiations to actually succeed.
Lex Fridman
Okay, so China has a few red lines, so don’t mention Hong Kong or Taiwan.
Okay, so China has a few red lines, so don’t mention Hong Kong or Taiwan.
Keyu Jin
Don’t mix the political issues with the trade deal.
Don’t mix the political issues with the trade deal.
Lex Fridman
Right. And then is there some degree maybe you can speak to culturally where stylistically there’s red lines, meaning don’t bully China language-wise, or does that not matter? Because there’s a kind of way of speaking in the United States that I feel like in diplomacy in general, neither side wants to be humiliated and in great deals, even when one side on paper wins, you want to make the other side, especially the side that gets the shorter end of the stick, feel like they’ve won and show the rest of the world that they’re the winner.
Right. And then is there some degree maybe you can speak to culturally where stylistically there’s red lines, meaning don’t bully China language-wise, or does that not matter? Because there’s a kind of way of speaking in the United States that I feel like in diplomacy in general, neither side wants to be humiliated and in great deals, even when one side on paper wins, you want to make the other side, especially the side that gets the shorter end of the stick, feel like they’ve won and show the rest of the world that they’re the winner.
Keyu Jin
Well, that’s diplomacy.
Well, that’s diplomacy.
Lex Fridman
That’s diplomacy.
That’s diplomacy.
Keyu Jin
We have an absence of diplomacy. But you’re absolutely right, there needs to be respect. The Chinese at least really care about respect. And I wish there was just a bit more cultural fluency, and I think a lot of things would be so much easier between the two countries, just understanding that because you can actually push China to do a lot of things, all within reason that would work in favor of the US, but understand that respect is vitally important. Face-saving is very, very, very important.
We have an absence of diplomacy. But you’re absolutely right, there needs to be respect. The Chinese at least really care about respect. And I wish there was just a bit more cultural fluency, and I think a lot of things would be so much easier between the two countries, just understanding that because you can actually push China to do a lot of things, all within reason that would work in favor of the US, but understand that respect is vitally important. Face-saving is very, very, very important.
Lex Fridman
To what degree, what Xi Jinping says and what they’re putting out there in the world represents the truth? So he has a whole way of being of like, “Let’s de-escalate. Let’s all make good deals together. Almost like, let’s be friends.” Modi a little bit has a similar way of being like, “Let’s just…” And the implied thing is, forgive the French, but if you fuck with us, we won’t be nice, but let’s just all be nice together. Is he speaking the truth?
To what degree, what Xi Jinping says and what they’re putting out there in the world represents the truth? So he has a whole way of being of like, “Let’s de-escalate. Let’s all make good deals together. Almost like, let’s be friends.” Modi a little bit has a similar way of being like, “Let’s just…” And the implied thing is, forgive the French, but if you fuck with us, we won’t be nice, but let’s just all be nice together. Is he speaking the truth?
Keyu Jin
Xi Jinping is not Putin, right?
Xi Jinping is not Putin, right?
Lex Fridman
Sure.
Sure.
Keyu Jin
And there is a genuine desire on China’s part to de-escalate. Again, coming back to the level of pragmatism. Under economic strain in China, you don’t really want to be picking fights. They don’t agree at all with Trump’s economic views and world vision, let’s just put it simply. So understanding that a lot of this is also driven by American internal politics, which they are aware of, helps a bit, but there’s a genuine desire to take the temperature down with the US even if the weather doesn’t fundamentally change.
And there is a genuine desire on China’s part to de-escalate. Again, coming back to the level of pragmatism. Under economic strain in China, you don’t really want to be picking fights. They don’t agree at all with Trump’s economic views and world vision, let’s just put it simply. So understanding that a lot of this is also driven by American internal politics, which they are aware of, helps a bit, but there’s a genuine desire to take the temperature down with the US even if the weather doesn’t fundamentally change.
Lex Fridman
What does a good diplomacy look like here for both sides? On just strictly on the economics, on the trade, the tariffs, what’s the best possible outcome for the world?
What does a good diplomacy look like here for both sides? On just strictly on the economics, on the trade, the tariffs, what’s the best possible outcome for the world?
Keyu Jin
I think that Trump can show to the American consumers that he has gotten some sort of a deal, right? That the Chinese have bought more American goods or promised to buy American goods, and then the American companies can come into China. And then a lot of the previously restricted investment opportunities are now not restricted and the American banks can make money in China. He can say that. And I think that could be part of a really realistic deal that somehow American companies will be better protected through IP protection. And again, that’s in China’s interest as well. So I don’t see a fundamental conflict here. And at the same time, they lower the tariffs not to the rates where they were before but lower and you don’t prohibit trade. And then for China, that would also be a success. So you can actually have success for both places, but being realistic is part of the game.
I think that Trump can show to the American consumers that he has gotten some sort of a deal, right? That the Chinese have bought more American goods or promised to buy American goods, and then the American companies can come into China. And then a lot of the previously restricted investment opportunities are now not restricted and the American banks can make money in China. He can say that. And I think that could be part of a really realistic deal that somehow American companies will be better protected through IP protection. And again, that’s in China’s interest as well. So I don’t see a fundamental conflict here. And at the same time, they lower the tariffs not to the rates where they were before but lower and you don’t prohibit trade. And then for China, that would also be a success. So you can actually have success for both places, but being realistic is part of the game.
Lex Fridman
Question to you as an economist, is tariffs a useful, effective tool for global trade?
Question to you as an economist, is tariffs a useful, effective tool for global trade?
Keyu Jin
No. I think that there is a real problem in global trading system and globalization in general that is not going to be resolved by tariffs. We do need to think about more harmony between countries where let’s say not one country dominates. And here I’d push back on China and say, “Yes, you have amazing companies and competitive companies, but you just can’t dominate everything. That would not be good for global harmony. You need to give other countries an opportunity. You need to develop your own internal economy, rely on your consumers as part of the deal.” Tariffs, this kind of highly protectionist method is very distortionary and it’s going to be bad for the US. I’d actually argue that both China and the US have totally taken advantage and also enjoyed the global economic realm under the US liberal order. I think that China quite likes it actually.
No. I think that there is a real problem in global trading system and globalization in general that is not going to be resolved by tariffs. We do need to think about more harmony between countries where let’s say not one country dominates. And here I’d push back on China and say, “Yes, you have amazing companies and competitive companies, but you just can’t dominate everything. That would not be good for global harmony. You need to give other countries an opportunity. You need to develop your own internal economy, rely on your consumers as part of the deal.” Tariffs, this kind of highly protectionist method is very distortionary and it’s going to be bad for the US. I’d actually argue that both China and the US have totally taken advantage and also enjoyed the global economic realm under the US liberal order. I think that China quite likes it actually.
US kept at peace and during this peaceful times, things were working very well economically, technologically. They kept the sea lanes open. They did their part to preserve peace to the extent they can, I guess. But China wants peace. Only with peace can they do what they can and actually US, despite saying they’ve been victimized, look, they’ve had a very, very good time. Never have quality of life, standards of living, technology risen as much as the US did under its own liberal order than it has ever before, and the amount of influence and power. Yes, of course, you can blame the US for lots of things that happened, but it actually had a really good time and China as well. So now they’re going to take this apart. They think that they’re going to be somehow better off that American people and Chinese people are going to be better off under more disorderly, fragmented rule of a jungle kind of world. That’s an illusion. That’s what politicians tell their people, but that’s not the truth.
Lex Fridman
So what are, if not tariffs, ways to incentivize countries like the United States to build internally? So to build semiconductor chips internally, for example?
So what are, if not tariffs, ways to incentivize countries like the United States to build internally? So to build semiconductor chips internally, for example?
Keyu Jin
Well, exactly. Tariffs is a way to punish foreigners. But what you really want to do is to strengthen your own domestic competitiveness. And I want to draw an analogy to the US-Japan competition. In the 1980s, Japan actually took over in many parts of the semiconductors industry even though the microchip was invented in the US. But guess what happened? Well, it actually drove more competition and more mobilization in the US actually creating this innovation system, changed a few really critical laws that helped with US innovation and the consumers benefited. The US took over again as the leader of the semiconductors industry. There’s no better way than to strengthen yourself to be competitive because ultimately, tariffs have not done anything to help the US.
Well, exactly. Tariffs is a way to punish foreigners. But what you really want to do is to strengthen your own domestic competitiveness. And I want to draw an analogy to the US-Japan competition. In the 1980s, Japan actually took over in many parts of the semiconductors industry even though the microchip was invented in the US. But guess what happened? Well, it actually drove more competition and more mobilization in the US actually creating this innovation system, changed a few really critical laws that helped with US innovation and the consumers benefited. The US took over again as the leader of the semiconductors industry. There’s no better way than to strengthen yourself to be competitive because ultimately, tariffs have not done anything to help the US.
The trade deficits have widened since Trump, right? They haven’t closed the imbalance with China and with the rest of the world because ultimately the US saves less than it invests. And that’s a macrophenomenon. It’s not a trade phenomenon, but I fear that the US, by dropping off of this global trading network and system, it will lose more and more of its power. You have power when you’re deeply engaged and embedded with a country. Once you’ve left it, you actually lose any sort of leverage.
Lex Fridman
So there’s got to be ways to incentivize industrial policy, building more stuff internally without tariffs, right? You just invest from a federal perspective, you invest in companies, maybe like more than carrot towards the domestic versus stick versus the foreigner.
So there’s got to be ways to incentivize industrial policy, building more stuff internally without tariffs, right? You just invest from a federal perspective, you invest in companies, maybe like more than carrot towards the domestic versus stick versus the foreigner.
Keyu Jin
All kinds of subsidies that are justified for the green transition for innovation, R&D, support for the university system, the US is the world leader in terms of attracting talent, it has everything going for it. But it was a little bit complacent. And by dropping off of that global network, it’s going to do itself more disservice.
All kinds of subsidies that are justified for the green transition for innovation, R&D, support for the university system, the US is the world leader in terms of attracting talent, it has everything going for it. But it was a little bit complacent. And by dropping off of that global network, it’s going to do itself more disservice.
Lex Fridman
Yeah. Tariffs don’t quite make sense to me, but maybe I’m dumb. It just doesn’t make-
Yeah. Tariffs don’t quite make sense to me, but maybe I’m dumb. It just doesn’t make-
Keyu Jin
It doesn’t make sense to economists either. And economists are not all dumb.
It doesn’t make sense to economists either. And economists are not all dumb.
Immigration
Lex Fridman
All right. You did mention immigration a little bit. I think that’s a component of it also. You said your own experience was that US was much more open to immigration in the past. What do you think about this on the human side, the protectionism, the closing of the borders that the US is doing? What are the pros and cons of that from an economics perspective?
All right. You did mention immigration a little bit. I think that’s a component of it also. You said your own experience was that US was much more open to immigration in the past. What do you think about this on the human side, the protectionism, the closing of the borders that the US is doing? What are the pros and cons of that from an economics perspective?
Keyu Jin
On US immigration, I understand both sides of the story to be very honest. And I also understand a bit of the protectionist streak, not only coming from the US but also from Europe and various parts of the world, which is going to be a trend. I understand that before you care about people in the rural villages in Indonesia, you really care about the Northern Brits in this country and they have not fared well. I understand that your jobs may be under threat because of this uncontrolled influx of illegal immigrants.
On US immigration, I understand both sides of the story to be very honest. And I also understand a bit of the protectionist streak, not only coming from the US but also from Europe and various parts of the world, which is going to be a trend. I understand that before you care about people in the rural villages in Indonesia, you really care about the Northern Brits in this country and they have not fared well. I understand that your jobs may be under threat because of this uncontrolled influx of illegal immigrants.
From a purely economic and rational level, you’d say immigration is very important because it keeps the prices down, keeps inflation down, it keeps up the supply, which is very important when you have that much demand. And look, the standards of living have also improved for many people who can afford it. The low-cost workers being able to sustain the service economy. So I understand both sides of the story. I think that in the end, it is a balance. And I do believe even as an economist, that social harmony, and I come back to this word harmony repeatedly, even though as an economist, this thing doesn’t even exist, is becoming ever more important.
And as a nation, some kinds of skilled immigration is actually what makes the US the most technologically advanced country in the world. At the same time, you do have to think about your own citizens, the ones that have had generations and been around, and you have to think about their livelihoods.
Lex Fridman
Yeah. The puzzle of social harmony is a fascinating one. You spoke to the long history of China, how they-
Yeah. The puzzle of social harmony is a fascinating one. You spoke to the long history of China, how they-
Keyu Jin
That was Confucius.
That was Confucius.
Lex Fridman
Yeah. That’s Confucius. And then there is a kind of social harmony, a very different set of-
Yeah. That’s Confucius. And then there is a kind of social harmony, a very different set of-
Lex Fridman
… and then there is a kind of social harmony, a very different set of ideologies in the United States and in the West broadly. And it’s all a puzzle. And you do want to have some cohesion. But in the United States, one of its beautiful aspects is the diversity of humans. And so the continued influx of diversity feeds the machine that makes America great also. But too much breaks the fabric of that society. So it such an interesting puzzle. And some of it is like we humans can’t balance. So you go one extreme, the other. And you just oscillate back and forth.
… and then there is a kind of social harmony, a very different set of ideologies in the United States and in the West broadly. And it’s all a puzzle. And you do want to have some cohesion. But in the United States, one of its beautiful aspects is the diversity of humans. And so the continued influx of diversity feeds the machine that makes America great also. But too much breaks the fabric of that society. So it such an interesting puzzle. And some of it is like we humans can’t balance. So you go one extreme, the other. And you just oscillate back and forth.
And then also politics, especially in the United States, there’s a red team and a blue team. And when the red team is at the top, the blue team just pulls all the way to the other direction, and vice versa. And we just kind of oscillate back and forth in this way, and hopefully make progress over time.
Keyu Jin
But I want to come back to the point of choice. What makes America so great is that it tolerates instability. It tolerates clashes, it tolerates volatility. Think about the financial crisis, right? The financial volatility of… Again, the US dollar is where it is because of this deep liquid financial system in the US that no other country has managed to build. There are clashes everywhere in society, but it is a very diverse country with all the benefits to that. It is a highly, highly unequal country, economically speaking. The CEO pays, the businessmen being able to be in top political positions. You balk at that level of cronyism, if you will.
But I want to come back to the point of choice. What makes America so great is that it tolerates instability. It tolerates clashes, it tolerates volatility. Think about the financial crisis, right? The financial volatility of… Again, the US dollar is where it is because of this deep liquid financial system in the US that no other country has managed to build. There are clashes everywhere in society, but it is a very diverse country with all the benefits to that. It is a highly, highly unequal country, economically speaking. The CEO pays, the businessmen being able to be in top political positions. You balk at that level of cronyism, if you will.
But the US is the technological leadership and it is able to stomach that volatility and clash without breaking apart. And other countries don’t have the capacity of the institutions, the culture to be able to tolerate and still maintain to keep the society together. So I think it is very interesting. But yeah, it’s a puzzle.
Taiwan
Lex Fridman
So we talked about the economic side of tariffs, and you mentioned the other red line and the three T’s. Can we talk about Taiwan? So how important is Taiwan to the Chinese economy and the global economy?
So we talked about the economic side of tariffs, and you mentioned the other red line and the three T’s. Can we talk about Taiwan? So how important is Taiwan to the Chinese economy and the global economy?
Keyu Jin
Taiwan has among other things, TSMC, which is vitally important for the global economy. It’s also very important for the Chinese leadership and the Chinese people. You don’t want to ask what I think, ask the Chinese young generation. They would one day like to see unification. It’s part of the patriotic, the dream, if you will. And it’s a chip between the US and China. So everybody is watching Taiwan. But I’d say that this attention is not necessarily good for Taiwan, because all this uncertainty on the political risk has meant that investment there has dramatically been curtailed.
Taiwan has among other things, TSMC, which is vitally important for the global economy. It’s also very important for the Chinese leadership and the Chinese people. You don’t want to ask what I think, ask the Chinese young generation. They would one day like to see unification. It’s part of the patriotic, the dream, if you will. And it’s a chip between the US and China. So everybody is watching Taiwan. But I’d say that this attention is not necessarily good for Taiwan, because all this uncertainty on the political risk has meant that investment there has dramatically been curtailed.
And mainland China is a very, very important economic partner to the Taiwanese economy. I think that I don’t have a lot of views around this, but I just say this, I think there’s more political wisdom of the Chinese government side than we assume outside of China. And that strategic ambiguity, but also strategic patience, especially given China’s economic situation currently means that more likely or not, I think that if China does really well economically. And Taiwan is not doing as well economically as we’ve seen that over time, this is still the best strategy from China’s point of view to resolve these differences. I think any military use and action would be actually quite detrimental to China.
Lex Fridman
So what’s a way to avoid military conflict here? It seems like a red line unification is the red line for the United States and it just feels like a very tense situation. So is there a path forward here that avoids any military conflict where everybody’s happy from an economics perspective, from a semiconductor manufacturer perspective also?
So what’s a way to avoid military conflict here? It seems like a red line unification is the red line for the United States and it just feels like a very tense situation. So is there a path forward here that avoids any military conflict where everybody’s happy from an economics perspective, from a semiconductor manufacturer perspective also?
Keyu Jin
Well, first of all, you have to keep the communication channel open, right? There was a risk of that being shut off during the Biden administration. That’s highly, highly dangerous.
Well, first of all, you have to keep the communication channel open, right? There was a risk of that being shut off during the Biden administration. That’s highly, highly dangerous.
Lex Fridman
Meaning US-China communication.
Meaning US-China communication.
Keyu Jin
Yeah. There’s also something that I think people miss, which is that the soldiers in mainland China, that’s part of the one-child policy generation, right? There’s only one son. Families have only one son. And I think to assume that the Chinese people desire and would be able to forsake that generation for unification purposes, or be able to tolerate lost lives for this, I think is also a bit of an exaggeration in stress. And I think Chinese people also really… They really care about peace and stability. Chaos is just not part of what they think is good for them.
Yeah. There’s also something that I think people miss, which is that the soldiers in mainland China, that’s part of the one-child policy generation, right? There’s only one son. Families have only one son. And I think to assume that the Chinese people desire and would be able to forsake that generation for unification purposes, or be able to tolerate lost lives for this, I think is also a bit of an exaggeration in stress. And I think Chinese people also really… They really care about peace and stability. Chaos is just not part of what they think is good for them.
The role that TSMC plays is so critical given the choke point they have on the rest of the world in the semiconductors industry, which we know is one of the most important industries sustaining the economy. Not to mention things like AI and technologies. Look, the US has been trying to build another TSMC outside of Taiwan. It’s very, very, very slow. There are a lot of cumulative knowledge, experience, and skills that are involved. It’s not that easy.
The Chinese don’t want to see an eruption of TSMC either, because again, it’s vitally important for everybody. Whilst I don’t think that this is really necessarily a bargaining chip, because if you really see what the Chinese thinks about Taiwan, it goes beyond economics. It goes beyond the logical. It is about realizing a dream, which even I tended to not place enough importance. But when I talk to the young people in China, I realized that it’s still their dream.
Lex Fridman
It’s just unfortunate that this dream is mixed up in the fact that Taiwan with TSMC has been incredibly good at manufacturing. It’s just an interesting puzzle of why it’s so difficult, a low cost at scale to manufacture chips. And it’s just incredible that they were able to do it. And it’s an interesting puzzle for how China can do it domestically and how US can do it domestically. And it seems like there’s increasing urgency on that. And I think if we look out in the next a hundred years, the urgency is good because it’s probably good for each individual country to be manufacturing majority of their chips. It’s less likely to lead to conflict.
It’s just unfortunate that this dream is mixed up in the fact that Taiwan with TSMC has been incredibly good at manufacturing. It’s just an interesting puzzle of why it’s so difficult, a low cost at scale to manufacture chips. And it’s just incredible that they were able to do it. And it’s an interesting puzzle for how China can do it domestically and how US can do it domestically. And it seems like there’s increasing urgency on that. And I think if we look out in the next a hundred years, the urgency is good because it’s probably good for each individual country to be manufacturing majority of their chips. It’s less likely to lead to conflict.
Keyu Jin
Well, this is the trend that you need to manufacturing things that are important for national security. It’s not efficient, but it’s so-called strategically safer.
Well, this is the trend that you need to manufacturing things that are important for national security. It’s not efficient, but it’s so-called strategically safer.
One-child policy
Lex Fridman
You mentioned one-child policy, so can we speak a little bit more to that? What broadly, what impact has it had on the Chinese society? On culture, you already mentioned some of it, some of the impact on the economics, on the culture, on the demographics of China.
You mentioned one-child policy, so can we speak a little bit more to that? What broadly, what impact has it had on the Chinese society? On culture, you already mentioned some of it, some of the impact on the economics, on the culture, on the demographics of China.
Keyu Jin
It’s probably one of the most radical policies that China has enacted in its history. And the enforcement was very strict. In my class, nobody had a sibling except my friend who was a Uyghur. 98% of urban households had only one. The other 2% are twins, which you’re allowed to keep. Thank goodness. If you had the good fortune of giving birth to twins, it had lots of unintended consequences on the economy and society as well.
It’s probably one of the most radical policies that China has enacted in its history. And the enforcement was very strict. In my class, nobody had a sibling except my friend who was a Uyghur. 98% of urban households had only one. The other 2% are twins, which you’re allowed to keep. Thank goodness. If you had the good fortune of giving birth to twins, it had lots of unintended consequences on the economy and society as well.
Maybe on the good side, it’s actually a golden age for Chinese women because the Chinese girls never had as much education investment apportioned to them as they’ve had after being the only child in the family. And you raised a daughter like a son. And if we look at all the skill gaps and the education gaps and the returns to education, actually girls fared better. Apart from the top, top, top leadership in the Chinese political class, you look at the CEOs and major companies, in the ministry, civil servants, there are a lot of Chinese women.
And actually, recently, if you look at the surveys, the Chinese families would prefer to have a daughter than a son. Because they’ve seen how much bargaining power you as a Chinese woman and as a rare bride, or a scarce supply of brides goes, you have raised your bargaining power and you can command high amounts of dowry. That was an unintended good thing about the one-child policy. And to the opposite, the recent relaxation of the one-child policy, actually women are now encouraged to have as many kids as they possibly can.
The flip side of the one-child policy has not necessarily been good to women in the job market because they think, “Ph, well, you’ve only had one child. Oh, guess what? You can have another child.” So that’s not necessarily good for long-term employability. But on the economic side, I’ve written about this in my academic papers, it’s been one of the very important causes of high saving rate. I always tell people, “You want to stimulate consumption? Well, have more kids.” You know how much one of those costs, right?
Lex Fridman
Yeah.
Yeah.
Keyu Jin
Especially in China, the tutorial ships, the education. You have to buy a house. You have to buy a house for them so that they can get married eventually.
Especially in China, the tutorial ships, the education. You have to buy a house. You have to buy a house for them so that they can get married eventually.
Lex Fridman
Yep.
Yep.
Keyu Jin
So it’s very, very expensive to have a child. If I have more children, you spend more. But maybe people don’t want to have more children because the cost of having a child is so high. And this is driven by the competition. And why is there so much competition? Because there’s a one-child policy generation, right? You want your child to be the dragon or the phoenix, and you put everything into that one child. That makes the child more anxious, makes the whole environment more competitive.
So it’s very, very expensive to have a child. If I have more children, you spend more. But maybe people don’t want to have more children because the cost of having a child is so high. And this is driven by the competition. And why is there so much competition? Because there’s a one-child policy generation, right? You want your child to be the dragon or the phoenix, and you put everything into that one child. That makes the child more anxious, makes the whole environment more competitive.
And in the end, these one-child policy children don’t want to have a lot of kids, because they don’t want them to see them suffer what they have suffered. So there are all these kind of unexpected consequences, but also changing the social fabric. I’d like to say that it broke the hierarchy of the family where the parents had the dominant role. Now the kids are the boss. They boss everybody around, they boss the grandparents around.
It relates to the puzzle, the housing puzzle. How is it possible that the Chinese youth can afford these really expensive real estate with their meager income? Well, one common thing is that they have six wallets, you and your spouse, together with the parents, and maybe even the grandparents would chip in. So there’s this kind of intergenerational family dynamics that makes our models focused on the individual consumption, just completely inappropriate to describe these dynamics.
But the demographic side is the other challenge, which is they were so strict about the one-tile policy and they kept it in for too long, so that once they decide to loosen it and decided that fertility rates were way too low to sustain the Chinese economy in its future, it was already too late. And now, they’re finding all kinds of creative ways to make people have more kids. This is not something that they can demand and command in ways that they can demand and command emerging strategic sectors.
So all these really interesting social anecdotes where they’re encouraging even single women in a highly conservative society, encouraging single women to raise children, nothing to be afraid about that, lots of support system going there. I mean, they’re radically changing the whole thinking around these kind of issues.
Lex Fridman
Well, it seems like even the West, a lot of the developed countries have a demographics problem. It seems like a lot of countries are not having enough babies.
Well, it seems like even the West, a lot of the developed countries have a demographics problem. It seems like a lot of countries are not having enough babies.
Keyu Jin
South Korea.
South Korea.
Lex Fridman
South Korea.
South Korea.
Keyu Jin
Very, very, very low fertility rate. It’s just that for China’s stage of development, it should be having more babies than it is currently having. So the one-tile policy accelerated that demographic transition. It really squeezed in many, many decades into two. But my view about the demographic aspects for the economy is not as pessimistic as most people because, meanwhile we’re talking about aging, there are also high rates of unemployment, right? When we’re talking about is there enough people to do the jobs? We have things like AI and not enough jobs, and these kind of questions that are first order.
Very, very, very low fertility rate. It’s just that for China’s stage of development, it should be having more babies than it is currently having. So the one-tile policy accelerated that demographic transition. It really squeezed in many, many decades into two. But my view about the demographic aspects for the economy is not as pessimistic as most people because, meanwhile we’re talking about aging, there are also high rates of unemployment, right? When we’re talking about is there enough people to do the jobs? We have things like AI and not enough jobs, and these kind of questions that are first order.
We haven’t even figured out the relationship between labor force, productivity, what are the factors of production that will be most important for future economy? And so we shouldn’t be terrified that there’s a looming aging problem. Because I think the more important question is that skill gap. What kind of skills do we actually need in the economy? What kind of education system should we design in the economy to better suit the country to an ever evolving and transformative technological society?
Lex Fridman
Because if that’s successful, then we’d be able to respond to whatever puzzle the demographic situation creates.
Because if that’s successful, then we’d be able to respond to whatever puzzle the demographic situation creates.
Keyu Jin
Yeah. If you look at the most recent evidence on this issue, they found that post-1990, aging economies became richer. Not the other way around, which was true for the pre-1990 sample. And the reason is that these aging societies much more rapidly adopted new technologies, automation that actually helped the entire economy. So should we be panicking about this now when we’re actually also panicking about the fact there’re not enough jobs around? There are other issues that are more relevant for the Chinese economy today.
Yeah. If you look at the most recent evidence on this issue, they found that post-1990, aging economies became richer. Not the other way around, which was true for the pre-1990 sample. And the reason is that these aging societies much more rapidly adopted new technologies, automation that actually helped the entire economy. So should we be panicking about this now when we’re actually also panicking about the fact there’re not enough jobs around? There are other issues that are more relevant for the Chinese economy today.
China’s economy collapse predictions
Lex Fridman
There are constant predictions of China’s economy collapsing. You have pushed against that narrative. But you’ve also spoken to some of the challenges it’s going through. What’s the GDP going to look like? Is the Chinese economy going to collapse? Is it going to flourish? What do you think?
There are constant predictions of China’s economy collapsing. You have pushed against that narrative. But you’ve also spoken to some of the challenges it’s going through. What’s the GDP going to look like? Is the Chinese economy going to collapse? Is it going to flourish? What do you think?
Keyu Jin
Collapse is such a strong word, and the West has been using this word repeatedly. If I remember correctly, maybe four to five times, maybe even six times since 1980s during the period of China’s fastest growth. I tend to not think that Chinese economy will collapse. But will a slowdown continue? Will it be able to lift up again? Will it be able to come out of this cycle soon? I think that’s more relevant. And the Chinese economy has a lot of potential because the fundamentals are still there.
Collapse is such a strong word, and the West has been using this word repeatedly. If I remember correctly, maybe four to five times, maybe even six times since 1980s during the period of China’s fastest growth. I tend to not think that Chinese economy will collapse. But will a slowdown continue? Will it be able to lift up again? Will it be able to come out of this cycle soon? I think that’s more relevant. And the Chinese economy has a lot of potential because the fundamentals are still there.
When we talk about the fundamentals, it’s the skills, it’s the human capital, it’s the physical capital, it’s the macroeconomic stability and political stability. That’s a lot going for a country if you look around the world right now. And this is why the entrepreneurialism is still there, because the fundamentals are there, even though the economy is weak, consumers are not confident and private investment is insufficient. The fundamentals are there.
Is China where it should be far, far, far from it. Because China’s potential, based on the fundamentals, is a much higher level of per capita income than where it is currently. It’s kind of currently in a $10,000 bracket. And this is also a puzzle because you’re a $10,000 per capita income country that can actually do leading-edge technology and can be neck to neck with US companies on these high-tech. That’s the first time in history.
Even the Soviet Union, which was very technologically advanced, did not have the extent of commercializable civilian technology and the technologies that were pervasive throughout the economy. But fundamentally, we have to understand how much of this real estate crisis has impinged on the economy and explains the persistent slowdown.
Lex Fridman
Can you explain the real estate crisis?
Can you explain the real estate crisis?
Keyu Jin
A few years ago, there was a crackdown on the real estate sector. And again, it comes back to a lot of the social issues we were discussing. Why aren’t people having kids? Well, maybe it’s because housing is too expensive. Maybe it’s because education system is too competitive. The speculative bubbles in the real estate is making housing unaffordable, and that’s not part of the Chinese social characteristics. And so when they decided that the property investors were going to be reined in that housing was to be lived in, not speculated. It really brought down the whole sector in terms of investment, in terms of the financing of the sector. But ultimately, it made such a massive impact or such a massive dent on the economy, because it really embodied the two fundamental pillars of the economy. One is the fiscal system and one is the financial system.
A few years ago, there was a crackdown on the real estate sector. And again, it comes back to a lot of the social issues we were discussing. Why aren’t people having kids? Well, maybe it’s because housing is too expensive. Maybe it’s because education system is too competitive. The speculative bubbles in the real estate is making housing unaffordable, and that’s not part of the Chinese social characteristics. And so when they decided that the property investors were going to be reined in that housing was to be lived in, not speculated. It really brought down the whole sector in terms of investment, in terms of the financing of the sector. But ultimately, it made such a massive impact or such a massive dent on the economy, because it really embodied the two fundamental pillars of the economy. One is the fiscal system and one is the financial system.
So coming back to our local mayor economy, where did you think the local mayors got their funds? Through real estate, they sold land. Real estate property developers came in, they can develop the entire local economy because the services will come in, the jobs will come in. And by the way, you are an equity owner of the entire city. So you want these property developers around. Many countries throughout history all have this property transition, right? You need to wean the economy off of property. In a good situation, it takes three to five years. In a bad situation, it can take 10 years.
I don’t know where China belongs currently. But the real estate collapse also meant the local finances, local government finances also shrunk dramatically. Real estate was a really important part of the financial industry, it brought that down. Together, it really had a major impact on the economy. But also from the consumer side, their wealth was primarily tied into real estate. Not the stock market, not other kind of investment opportunities, it was real estate. So they felt poor, they consumed less.
Advice for visiting China
Lex Fridman
So in the spirit of understanding China better, maybe to get a bit of your advice, if I were to visit China, what’s the right way to visit to experience it, to see the people, to talk to the people maybe outside of the big cities? Is there any advice you can give to somebody going to China?
So in the spirit of understanding China better, maybe to get a bit of your advice, if I were to visit China, what’s the right way to visit to experience it, to see the people, to talk to the people maybe outside of the big cities? Is there any advice you can give to somebody going to China?
Keyu Jin
Checkout Speed, his travels into China. I think they represent a more dynamic reality than just visiting Beijing and Shanghai and Shenzhen, the big cities. I actually think a lot of the opportunities, especially economic opportunities, are in the second, third tier cities now in China. And there’s a return of talent. These companies, Pop Mart, they’re coming from these second-tier cities that care about the local economy, about fun, entertainment. That’s what the new generation is about, they don’t want to be lining up some factory doing manufacturing jobs.
Checkout Speed, his travels into China. I think they represent a more dynamic reality than just visiting Beijing and Shanghai and Shenzhen, the big cities. I actually think a lot of the opportunities, especially economic opportunities, are in the second, third tier cities now in China. And there’s a return of talent. These companies, Pop Mart, they’re coming from these second-tier cities that care about the local economy, about fun, entertainment. That’s what the new generation is about, they don’t want to be lining up some factory doing manufacturing jobs.
If you think that the Chinese new generation is still all about that, you should really study them a little bit more. They’re all about making their lives more fun and more interesting, right? That’s the cycle, right? In the beginning, Chinese people are hungry. They want to look for jobs, and they find these jobs and manufacturing. Now they want a work-life balance. They are a spearheading fashion. They spend so much more on entertainment, travel, clothing, restaurants. They have come out with these amazing coffee chains that have beaten completely Starbucks within a very short amount of time. This is all the new generation.
Where are the opportunities? It’s in the local areas. It’s all about localism. Not globalism, localism. Being rooted in your local economy, you’ll actually find so many more opportunities. You go to Chongqing. I actually was watching a video about Chongqing. I thought we were in Shanghai. I was so surprised. And you go to Chengdu, it’s fun. People work a little bit less, but it’s really exciting. It’s very fun. People are really nice. Go to Xinjiang, take a look for yourself. There’s ski resorts being open there. You have a very interesting, colorful, dynamic complex country, and it’s not defined by Beijing and Shanghai.
Lex Fridman
So the small cities are flourishing and are developing a personality of their own.
So the small cities are flourishing and are developing a personality of their own.
Keyu Jin
They are flourishing more than the first major-tier cities.
They are flourishing more than the first major-tier cities.
Lex Fridman
Interesting. What’s the most beautiful thing to you about China and its people that you wish more knew?
Interesting. What’s the most beautiful thing to you about China and its people that you wish more knew?
Keyu Jin
Behind all this competition and the ambition, you have a very genuine group of people. They are funny, they are community-based, they are authentic. Actually, it’s not contradictory, right? You have a society which is heavily controlled, but they find ways to be truly, truly authentic. And ultimately, they’re just a very social group, right? Again, I keep on coming to this being lonely aspect of the western society and increasingly living alone. That is not China. It’s still a very, very warm country, and they’re warm to foreigners, and they are friendly.
Behind all this competition and the ambition, you have a very genuine group of people. They are funny, they are community-based, they are authentic. Actually, it’s not contradictory, right? You have a society which is heavily controlled, but they find ways to be truly, truly authentic. And ultimately, they’re just a very social group, right? Again, I keep on coming to this being lonely aspect of the western society and increasingly living alone. That is not China. It’s still a very, very warm country, and they’re warm to foreigners, and they are friendly.
Lex Fridman
Well, very grateful for you being a voice of balance, a voice of reason in this world, and for the book you’ve written on China that a lot of people deeply respect, and for talking today. Keyu, thank you so much. This was an honor.
Well, very grateful for you being a voice of balance, a voice of reason in this world, and for the book you’ve written on China that a lot of people deeply respect, and for talking today. Keyu, thank you so much. This was an honor.
Keyu Jin
Great to be with you. It’s a pleasure.
Great to be with you. It’s a pleasure.
Lex Fridman
Thanks for listening to this conversation with Keyu Jin. To support this podcast, please check out our sponsors in the description and consider subscribing to the channel. And now, let me leave you with some words from Confucius, “It does not matter how slowly you go, as long as you do not stop.” Thank you for listening and hope to see you next time.
Thanks for listening to this conversation with Keyu Jin. To support this podcast, please check out our sponsors in the description and consider subscribing to the channel. And now, let me leave you with some words from Confucius, “It does not matter how slowly you go, as long as you do not stop.” Thank you for listening and hope to see you next time.
Transcript for Jack Weatherford: Genghis Khan and the Mongol Empire | Lex Fridman Podcast #476
This is a transcript of Lex Fridman Podcast #476 with Jack Weatherford.
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So what happened was a man named Yesügei… Yesügei, the future father of Genghis Khan. Yesügei was up on a hill. He was hunting with his falcon. The words of the Secret History of the Mongols were very clear, and he looked down and he saw her and he could barely glimpse her, but he knew she was young and she was a new bride. And he rode back to camp. He got his two brothers and they came racing down and they came… And first the husband of the woman looked around and he decided to flee, not because he was a coward, but he figured he would probably pull the men after him. They would chase him. And they did. They chased him. He went far away. He circled around. He came back. He arrived back at the cart where his wife was. Her name was Hö’elün. And Hö’elün had time to think while he was riding around being chased by the Mongols.
And she decided that it’s more important for him to live. And she told him when he came back, “You must flee. If you stay here, they will kill you and they will take me. But if you flee, they will take me, but you will have the chance to find another wife. There are many women in the world. You find one and you call her Hö’elün after my name, and you remember me when you’re with her.” It’s a very dramatic moment. And he rode away and he looked back and forth, and it said that the pigtails or the braids that were hanging down were whipping back and forth from his chest to his back. He was divided, obviously, whether he should go or stay. But the three men were approaching again and they were headed straight for the cart this time. And they came in and they took Hö’elün.
She didn’t say a word until her husband was over the ridge. And when he was over the ridge and she could no longer see him, she began to scream and wail. And one of the brothers said to her, “It doesn’t matter if you shake the waters out of the river and if you shake the mountains with your screaming, you will never see this man again.” And he was right. That was the moment that Genghis Khan’s mother and father met. That’s the beginning of his story in this kidnapping. And it’s going to reverberate every detail of it. We’ll come back again and again, not only throughout the story of the life of Genghis Khan, but it’s going to continue on with the feuds and the issues caused by it all the way into the future. And to some extent in certain parts of the world, you could say it still exists.
And during this campaign against the Tatars, he killed two Tatars. One of them was named Temujin-üge, which is sort of person of iron is what it means from the Turkic. But today a part of also Mongolian language. So he came back, he had a baby, and he decided to name him Temüjin, the person of iron or iron-man, we might call him.
And it’s very odd to me that I never have any inkling of a spark of relationship much between the father and the son because then when Temüjin is eight years old, his father decides to take him off to find a wife, which finding a wife in the Mongolian terms means you give the child to that family or you give the boy to that family and he will live with them and they will raise him up and they will train him the way they want before he can marry their daughter. And so he’s taking him off at age eight, but he didn’t take the other son from the other wife, Behter. He was keeping him. There was something about Temüjin having been lost once and found by the Taichiud and reunited with the family.
And now his father takes him off at age eight and he was going to take him to Hö’elün’s family, but he never made it. He stopped with another family. It’s like the first family he came across. And in the words of the Secret History, it sort of like instant love that there was fire in his eyes and fire in her eyes. And he saw this girl Börte, who was about nine years old, a little older, and he wanted to stay there with that family according to the story. And so the father left him there with that family. But on the way home, the father, he saw a drinking party and he decided to join them. They were Tatars. He hid his identity. On the steppe, everybody kind of figures out who everybody is. They figured out who he was. And supposedly they poisoned him. He got on his horse and was able to ride back home. But within a few days he died.
So now Temüjin is off living with another family, and somebody comes from his family, a family, not a relative, but a close person named Münglig comes to get him, take him back, and they make it through the winter. They make it through the winter. Mother Hö’elün, by now she has four sons and one daughter. I think the daughter had already been born or the daughter was going to be born not too long after that, but they make it through the winter. The spring comes and of course the clan is going to move to a new camp. They go to spring camp from winter camp. And they have a ceremony for the ancestors. And they started the ceremony, but they did not tell Hö’elün. And so she came and she was angry that she had been left out. And the old women said, “You’re the one for whom we do not have to call. We will feed you if you come, but we do not have to take care of you.”
Letting her know that as a captive woman, she was not a real wife in their view. And that was really the signal that when they moved camp, they were not taking her with them. And they packed up and they took her animals. They took the animals. But at that moment, she still had one horse for a moment, and she jumped on the horse and she took the banner of her husband and she raced around the people. And the banner after death contains the soul of the person, [foreign language 00:11:29] it’s called. And so she raced around and they were a little bit nervous. And so they camped for one night and they waited until it was dark, then they took off. And this time one of the friends of the family came running out to try to stop them and they killed him.
And Temüjin cried. He was a little boy, eight years old. There was nothing he could do. He’s just a little boy. And now that family is left there on the steppe, four children, possibly five already. Sochigel, the other woman with two children. They’re all left there to die on the steppe. When the winter comes, they will surely all die.
This is going to go on for generations. Very important for the Mongols. If it moves, it’s a weapon. He did that. He raced off in the night and he jumped into the river to hide. He still got a cangue on him. He’s still trapped under there. The people are looking for him. They come out and they’re up and down the river and he’s hiding underneath the water for the most part, trying to breathe as best he can, but it’s dark and it protects him a little bit. They give up and they say, “Okay, we’ll come back tomorrow. He can’t possibly escape.” But the next day, he knew one family that he thought he could go to, and he was right. He went to that family and a great risk to themselves. They in fact were a captive family of the Taichiud and at great risk to themselves, they managed to saw off the cangue and then burn it in their fire, and they gave him food to escape, and then he had to go find his family again. So this is the kind of life that this boy Temüjin had.
Mongols produced nothing. They could produce felt to make their tents, but they were not craftsmen. And so they had to get these items from somewhere, and it was through raiding. Even in the genealogy of Temüjin, you see going back generation after generation of women having been kidnapped, children born who are not necessarily the father’s child, and it’s unclear who the father was, and all of these issues go back for a long time. Later, Genghis Khan will realize once he becomes Chinggis Khan, he will realize that the true source of most of the feuding on the steppe is over women. And later he will outlaw the kidnapping of women and the sale of women, in part not only because of what had happened to his mother, but what happened to him next in his life.
It’s all the excitement that you can imagine with the fire in the eyes and the excitement. And then it only lasts a few months. So there they are… And there’s a lady visiting them. We don’t know exactly who she is, but just they called her grandmother, [foreign language 00:19:50]. Granny [foreign language 00:19:51] is there. Granny [foreign language 00:19:52] is sleeping, of course, on the floor of the ger, the tent. And early in the morning, she feels the vibrations in the earth, and she knows that horsemen are coming. She rouses the family. And mother Hö’elün is in charge. Mother Hö’elün is still in charge even though Temüjin is now married. She puts all of her children on a horse. She takes the baby girl Temülün in her own lap. She has one extra horse, but she won’t take Börte because she knows…
She doesn’t know who the men are. She has no idea. But they’re coming. They’re coming in the dark. They’re coming for a woman. They know there’s a girl there. This family of outcasts has acquired a wife, and they know that they’re coming for that. And so she leaves Sochigel, the other wife, she leaves this old lady, granny [foreign language 00:20:51], who actually has her own cart, and she leaves Börte. They pile into granny’s cart, and it’s only an ox to pull it so they don’t get too far before the attackers get there. But mother Hö’elün is right. She’s able to get her children off to the mountain, into [foreign language 00:21:09], to the mountain side away from them because the men are so focused on this cart and finding out how many women are in there and who they are and all. So mother Hö’elün saved her family, but at a cost.
Suddenly Temüjin realizes he has obeyed his mother, but he’s lost the most important thing in his life. And I do think this is the defining moment of his life. The story began back when his mother was kidnapped, but now the kidnapping of his wife and [inaudible 00:21:46] what will he do? What should he do? What can he do? Is he going to just resign himself to it? Is he going to go out and look for another wife? And he decides that life is not worth living without Börte. He has found something good in this life. And if he has to die trying to get her back, he will die trying to get her back.
So he grew up with a bunch of old women, which later he said he thought was an influence on his life. But the two boys meet. So they come from different backgrounds. And Jamukha is not as deprived by any means as the life of Temüjin, but he has a certain emotional deprivation I think, having not had mother, father, siblings, and he lives with these old people. The two boys meet, they become good friends playing on the ice. And so they’re playing on the ice. And then very early on, I think when they’re about 10 or 11 years old, they decide to make a pact. It’s called becoming anda. Anda is more than a friend. A friend is like [foreign language 00:25:49] in the language. And there are several different types of friendship, but anda is a friendship that’s beyond a friendship. It’s something for life. And they swore that they would be there forever to protect each other, to help each other in every moment.
And they exchanged knucklebones. So each one of them had the knuckle bone of a roebuck, a deer, a knuckle bones are used in these games that they play, but it’s also used to forecast the future. You can roll them around and all. And it’s very strange, on the ice, I will say in the wintertime in Mongolia, it can be up to 50 degrees below zero. And it doesn’t really matter at that point, whether it’s even Celsius or Fahrenheit or what it is. But you slide something across the ice and it’s just absolutely smooth like silk, and it goes on for a long way. And if you put your ear down to the ice, you hear this celestial sound that is unlike any sound on the earth. It’s just like the angels are singing under the ice. So once they’ve sworn this relationship of anda, then a couple years later they swear it again, but this time they’re slightly older boys and they have bows and arrows, and so they exchange arrows with each other.
In fact, the text is very specific that Jamukha took the horn, cut it off of a 2-year-old calf, and he whittled it down. And then he drilled a hole into it in order to make a whistling arrow, which is used for several purposes among the Mongols. It’s used for signals for one thing, from one person to another. But also when you’re hunting, if you want to move the animal in a certain direction, you send a whistling arrow in the opposite direction to make the animal move. So it had a lot of uses. So the boys had exchanged roebuck knuckles, this time they exchanged… And so they had been close friends. And Wang Khan said, “Okay, Jamukha should raise some troops and go with you.” And he did.
So the three set out. Some troops from Wang Khan. He himself did not go. He was too old, but he sent some troops and then Jamukha and his troops, and then basically just Temüjin and his family, he just had his brothers. That’s all. They set off to find the Merkit people up the Selenga River, which flows into Siberia and on into Lake Baikal. They had to go through some extremely rough territory. And you see in this episode though, Jamukha is already a little bit fierce without necessarily thinking it through carefully. He gives this long speech about all the things they’re going to do to the Merkit people. “We’re going to jump to the [inaudible 00:28:40], the smoke hole in the top of the ger. We’re going to jump in there and we’re going to kill them all. We’re going to kill the men and the women and the children. We will destroy these people forever.”
He has an extremely militant rhetoric at least. And he’s also rather critical of the other people. Wang Khan’s people came late and he gave them this long lecture about, “We are Mongols, and if we give our word, our word is our promise, forever. And rain or sleet or snow, it doesn’t matter. We be there on time.” So he’s dressing down his superiors. He is very aggressive, but he’s very helpful. So these troops, they move in on the Merkit camp. They also come in at night. And so there’s a small amount of warning because some men are out hunting sables, the Merkit men, and they race back to the camp and they tell the people, and the people are getting ready to get out as fast as possible. So Börte has no idea who’s coming. She doesn’t want to be kidnapped again, it’s just somebody.
So she and the grandmother [foreign language 00:29:52], and Sochigel, they’re loaded into a cart to go away. So Temüjin comes in. And there’s a full moon that night, so they could see what they’re doing, and he’s really searching for her. He’s not paying too much attention to the battle. And he’s calling for her, and she hears his voice. She knows who it is. She jumps off the cart and she runs to him and they reunited and he grabs her, embraces her, and then he said, “This is the goal. This is why we are here. We don’t need anything else.” He was very clear about that.
So it would’ve been common that Behter eventually, when he passed through puberty, would then perhaps marry mother Hö’elün. Now, I don’t know that that happened, but I think either it did or Temüjin was trying to prevent it, because it was bad enough that he was the older brother, but he comes the older brother and the stepfather. I think Temüjin just couldn’t handle that. And he was already, Behter was ordering around. So he would take things like a fish or bird that Temüjin had caught, and that’s perfectly acceptable in the Mongol hierarchy.
But the one who is outraged is mother Hö’elün, his mother. She screams and hollers at him in the longest kind of tirade you can imagine. About, “You’ll never have anybody in your life except your own shadow, and you are worse than”… Everything that she could name that could be worse than. She was outraged and went on, and on, and on about it.
So, she was obviously extremely distressed about it. Whereas Sochigel, the mother of the boy, she may have been distressed, I don’t know, but nothing has shown up in the record. So, he does have this episode of having killed off his brother. But I don’t think it was a deeply meaningful, I think it was important, but I don’t think it was a mostly deeply meaningful for Temüjin. The brother was gone, the problem was solved, mother is extremely ticked off at him but…
So, I can’t explain why, but it was certainly a strong love story after the fact, if not before. I mean those two were loyal to each other throughout their lives. Or she was, I would say, the most important person to him after that.
It’s one of those things that to this day almost, it’s an issue and what happens. But as he says much later in life, when his own sons rebel against him, and they call that first child a Merkit bastard, he defends his wife viciously to his own sons. He says, “You were not there. You do not know who loved who and who did not. You did not see the sky turning around. You did not see the stars falling. You did not see the earth turn over. You don’t know what was happening. And if I say he is my son, he is my son. Who are you to say otherwise, you were not there. You come from the same warm womb, and if your mother could hear your words, her warm womb would turn to cold stone.”
So, he defended her forever. But he’s off now… We go back to the beginning. She’s pregnant, they are in the Olkhonud Valley, and he Jamukha decide to renew their vows of being anda to each other. So, this time it’s more serious and it’s a ceremony in front of the whole… We can’t say tribe, it’s not big enough yet for a tribe, but a whole clan that’s there.
And then Jamukha takes off a gold belt, which actually he had stolen from the Merkit at some point. And where on earth they got a gold belt? I don’t know where. He took off a gold belt and he put it on Temüjin. And then Temüjin gave him a mare who had never had a foal that had never given birth. And it was an unusual mare who had a little growth on the front of her head, which they called a horn.
So, it was an unusual gift and don’t… It has meaning, but I don’t know all the meanings behind it. It’s sort of odd to me. But the golden belt I didn’t think about it in different ways. But the belt for the Mongol man is really the sign of manhood. And in fact, just a belt, büse, a woman was often then and even now called a person without a belt because that’s how they were at that time.
Today, women wear belts, of course. But they still use the word busgui, busgui with no belt. So, it’s a very important symbol of manhood. So, he gave that to Temüjin and they celebrated. And then the word told a secret history. They slept apart under the same blanket, apart from the other group, and they were happy together. And then when the baby was born to Temüjin named the baby Jochi, which means visitor.
And some people say, “Well, it’s because the child was really the Merkit child.” Other people say, “No, it’s because he was a visitor on the territory of Jamukha at that time.” And other people can say, well, Jamukha’s ancestor who had been born from the kidnapped woman who was pregnant, that they had named that Jarigadi which meant foreigner. So, it’s kind of like a parallel, the visitor, the foreigner. And so Jamukha’s clan took the name from him. They were called Jadaran, Jadaran. So, there are all these things that sometimes we can’t quite understand because we don’t have the total mentality of that time, and we were not there.
I think that in a certain way the most important other character in his life, adult life, would be the anda relationship. Which gets up being severely tested in the future years. But they run away through the night. They go all night long to escape from him. But he obviously loved Börte the most and took the baby of course with them as well.
So, for a while they’re not fighting each other. But eventually some things happened that separate Temüjin. Temüjin was making all of these great victories for Wang Khan. And he even got the title Wang, which means… from Chinese, meaning a prince or king. Wang Khan received that from the Jin Dynasty because of all of these conquests against the Tatar people.
So, Temüjin was rising up, and then he wanted his son to marry the daughter of Wang Khan, and Wang Khan said, “No.” His own son Senggum told the father, “No, no, no, no, we don’t marry those low people. They’re Mongols. They’re not like us. We are Kerait people. We’re not going to marry them.”
And so then now war, you could say, breaks out. Or feud really, it’s more of a feud. And Temüjin has to flee far away into the east to a place called Baljuna. And he goes to Baljuna, and at this time then Jamukha is going to fight on behalf of his Lord, Wang Khan. The two of them do not meet in combat, but now their forces are fighting each other.
And in fact, then Temüjin eventually defeats Wang Khan. So, he takes over Central Mongolia, he’s starting to really rise up now. And he has the title from his own people of Chinggis Khan. They give him that at Black Heart Mountain by the Blue Lake. It’s a very beautiful special place.
But he takes that title. That’s not a title that anyone had ever held that we know of. Chinggis Khan, it was a new title that he just thought up, or somebody thought up, or somebody thought it had auspicious meaning behind it. It’s very close to the word tengiz, which means the sea. It could have had something to do with that.
Mongolians really like, we might say puns of… they like words with meanings. And that’s very important to them. The more meanings a word has, the more power that word has, so if it has different meaning and different languages. So, in the Mongolian, it sounds like strong Chin, Chinggis. But in the Turkic, and there are many Turkic people, including the Merkit themselves are mostly Turkic people. It sounds like the sea, tengiz, tengiz.
And so many names are like that. And so I think Chinggis it doesn’t have one meaning. I think it means powerful, it means the sea, I think it means many different things. So, he had become a Khan, and he was ruling over him. And so Jamukha now switched loyalties to the next kingdom over called the Naiman people who are farther west.
And he becomes the protege, you could say, of the Naiman people. But when Chinggis Khan attacks the Naiman, Jamukha deserts the Naiman. He tells them, “These people have snouts of steel and they eat humans alive.” And he was telling him all these horrible things about the Mongols.
And Tayang Khan, the leader of the Naimans he was rightfully scared about them. And he was left there, and he, in fact, was very quickly also defeated. So, Jamukha has not fought against Temüjin in this campaign. And he’s off with some of his people, Jadaran clan people.
He’s off with them and they see the turning of the tide. But he now wants to become the Great Khan of the Steppe. He has very few followers, but he takes the title Gurkhan, which is a very old ancient important title. But because Wang Khan is gone, Toghrul Khan gone, he could take this title and pretend to be the great Khan of the Steppe, and all.
But his own people turn against him and they capture him, and they think they will take him to Chinggis Khan. It’s now Chinggis Khan. They’ll take him and they’ll be rewarded perhaps for turning him in. And Chinggis Khan does reward them immediately. He kills them all because they have betrayed their leader who is his anda. It’s a very strange encounter. And so supposedly Chinggis Khan says to him, “Come back to me, save me, be beside me, protect me, be my shadow, be my safety guard in life.” And supposedly Jamukha says, “But I did betray you when my people fought against you, and you will always know that, and you will never completely trust me. I’ll be like a louse underneath the collar of your tunic. I’ll be like a thorn in the lapel of your dell.”
He said, “Kill me without shedding my blood, let me die. And if you do, take my remains up to a high place and bury me, and I will be the guard, I’ll be the protector for you and your people forever.” So, they obviously, Tamujan did not participate in the killing, but he ordered the killing. And he was either… It’s not specified how he was killed without shedding the blood, but the Mongols had several ways.
Because the most honorable way to die was without shedding blood. The blood contains part of the soul, and if you lose it, you’re losing your soul before you die. So, they usually wrap them up in felt carpets and then beat them to death or trample them to death with horses, something like that. There are a couple other methods, but I think that’s probably the method by which Jamukha was killed.
And so he was killed, and then Temüjin or Chinggis Khan had his remains taken up and buried in a high place. This is over near Tuva, which is today part of Russia. But until the 20th century it was a part of Mongolia. The Tuvan people very, very close culturally to the Mongols.
Although she was not submissive but she was always on his side. And Jamakha, he was just a little too hot-headed for me. I mean, in my evaluation of him. That these things like, “Oh, we’re going to drop down on the Merkit and we’re going to come through the smoke hole, kill everybody,” and all. And he had a flair for the dramatic, even in a way of giving the gold belt to Temüjin.
But Jamakha also explained himself at the end of life, and he said, “We both lost our father, but I also lost my mother. And you had a strong mother to raise you, I did not.” And he said, “You had Börte, you have a very strong wife to help you. And my wife, just used a word like prattler, like she just sort of complains and prattles along, and we did not have a relationship.”
So, I think something about that rings true, that there were some elements of that that were true. But Jamakha certainly didn’t have the intelligence and the real genius for dealing with people, dealing with soldiers, especially in warfare that Temüjin had.
But he always dressed simply. He always lived in the tent and he said, “I eat what my soldiers eat. I dressed the way my soldiers dressed. I lived the way my soldiers live. We are the same.” So, he had no interest in the wealth. And Jamakha, he had sided before with Wang Khan, which was very advantageous because they had more trade goods and wealthier people, and all. But he just didn’t have the temperament, I think, that was going to be helpful for Chinggis Khan’s continued rise.
And so to this day, it’s often called the Uyghur alphabet, the Uyghur alphabet. So, he had ordered that, and he’d ordered his children to learn to read and write. And some did, I think most did not, but some did. But one of the things he did with every campaign, even the one with the Merkit when he rescued Börte was he always adopted one orphan.
And that child became a full member of the Mongol nation and his household. His mother Hö’elün would raise the child. So, she eventually had a whole household full of boys of different tribes, but they all became very high-ranking members of the government. And one was the Tatar boy who turned out not to be so great as a soldier, but he could read and write, he was the best. And later eventually, he became the supreme judge appointed by Chinggis Khan, of course. And so when Chinggis Khan died, he recognized it was important not just to write down the law, that’s all Chinggis Khan allowed to be written in blue books, only the law. Nothing about him or campaigns or military, anything,
But Shigi Qutuqu, was his name. Shigi Qutuqu realized that this was going to be lost, that this is a great historic thing that has happened. So, he compiled the work. A part of it he… I don’t know other people contributed, helped him, just a little bit unclear. The Mongols, they don’t specify that. So, they always tell you exactly where something happens so we know exactly where it happened. In Mongolia, you can still go to that spot where he wrote it. That’s very important to the Mongols.
And we also know it as the year of the Mao, so it was 1228, Chinggis Khan had died at 1227. So, he wrote down, it begins with what we would say are the myths, although I’m not sure they’re myths, but the origins of the myths. It begins with the marriage of a Gray-Blue Wolf with a Tawny Deer.
Then some people say, “Well, that’s some kind of myth. It’s totemic.” And Mongols mostly, they look at me, I asked them about this. They said, “What? He was named Blue-Gray Wolf, she was named Tawny Deer. They married.” They are very practical about it, and they think they’re real people. Maybe they were or not, I don’t know.
So, this earlier history is just the Genealogy as it should be, who knows? But it’s also in there because like Bodonchar, they call it Bodonchar the Fool, the ancestor of Temüjin. He’s cast out because he’s just so dumb. The rest of the family doesn’t want him. And his father is undetermined who he was. He kidnapped the Ö’elün Üjin woman. She has the child who becomes the ancestor, Temüjin.
So, it’s a confusing mess. But I tend to think it’s probably accurate. It has a lot of good information. And by the time you get to the life of Temüjin, the reason we know these intimate things is because that person Shigi Qutuqu, he was there. Sleeping in the same gear with the people. So we even see in there, he will record instances where Börte sits up in bed and tells her husband, “Okay, you got to do this. You got to do that. You can’t do this anymore. We can’t think of”… It’s all recorded, right?
So, it’s a very intimate document. And this is one reason that it was secret, it was only for the family. They were trying to uphold Chinggis Khan’s prohibition against putting out information about the family. So, it was a secret for a very long time. So, much so that scholars began to think it didn’t exist.
And then in the 19th century, a Russian academic who was working in China at the time, in Beijing. He discovered a manuscript which was very, very odd that people didn’t think was anything because it’s all Chinese characters, but it makes no sense in Chinese. But he recognized, but if you read it, pronounce it, it makes sense to a Mongolian. And so it was in this code that had been used to record the information in Chinese.
So, that was very helpful to me because some of the Persians I trust very much, and I liked their work very much. And so it was helpful that it already existed. And some of it existed in other Mongolian sources that were written later. Some of it was just incorporated.
So, it seemed to be fairly genuine, but it wasn’t a hundred percent pure. It had… Little things had happened to it along the way. Some things have been stepped here and there, and a few words changed. Sometimes for Temüjin, they call him Chinggis Khan. Well, he wasn’t the Khan then. And sometimes they call him Khan, which is like chief, and other times Khan, which is Emperor. Well, in Mongolian, it’s a big difference.
So, there are little things like this that move around that you’re not sure why. But it’s a document that I have great faith in. It was not published in English until 1982, but Francis Woodman Cleaves at Harvard University translated it in the 50s. It was ready for publication, and he was having trouble with the publisher. And so it didn’t appear for nearly 30 years.
And it was supposed to be two volumes. The first volume is the translation, the second volume was going to be the notes, and the second volume was lost. To this day, it hasn’t been found. I would love to see that. But anyway, now it’s in all languages, just about in the world.
Everything else I would check to correlate and fill in blanks and give more information. But I went to Mongolia to travel around to those places because they are so exact in there, and to feel it. And it’s so important, I think, because your history does not live in books. History does not live in archives or even libraries, as much as I need them for my work.
But history lives in the people. History lives in the memory of the people and the culture. And for example, the episode with the kidnapping of Börte. So, I went to that place and I didn’t know when it happened, what season it happened. It was very important for figuring out the bursts that came afterwards and other events that were being correlated.
Very important to me. And so I’m just talking to the people who live in that valley, the nomads there. They said, “Oh, it’s clear, it was the winter.” I said, “Oh, where did you read that?” He said, “No, granny Kuoqchin was on the ground, and she could feel the vibrations.” She said, “Look, this is summertime now. You’re not going to feel any vibrations the ground here is so soft.” Suddenly a whole important piece that I’ve been searching for just came together from some nomad sitting there next to his horse.
And he was absolutely right. It could only happen in the winter. And that also correlates with the time that reading was done. So, it correlates with other historic factors. But then that gave me the time basis for figuring out a lot of other things. History lives in the people.
But in Mongolia, I would go to these places and I would know… If Chinggis Khan came back today, he would know exactly where he is. There’s no road, there’s no sign, there’s no building, there’s no power line going to… nothing. And just to smell the air, to feel it, to see the animals, and to see what kind of animals live here, what kind of plants are growing here, you begin to get a-
The Soviet era had just ended, socialism was just ending, democracy was starting and Genghis Khan had been forbidden to them for almost the entire century and every known descendant of Genghis Khan was killed in Mongolia following the secret history, that became the key to writing what I wrote. Take the history, which is difficult to understand, you have to go over and I often never understand different parts or I change my mind and think it was yes now it’s no but the secret history is a valuable document. And to me, also, it’s the opening document of Mongolian written language and I think it’s very important how do people begin their written language and they begin it with the words [foreign language 01:09:45], from highest heaven came the destiny of the blue wolf who is married to the tawny deer and their descendants who came from the Great Sea to live at the base of Mount Burkhan-Khaldun.
The waters are mostly pure. Now, unfortunately, there has been pollution in this century from mining in several areas but, even when I was there or even today when we go to some place like the Selenga River where we talk about the market lived, so it’s a place of pure waters and that’s how Mongolians define their world is by the water. Genghis Khan does not give lands to his sons to rule, he gives waters and people to rule. They do not refer to the earth as land, they refer to the earth as dalai, ocean, the sea. And so, water is very important and, to learn the rules about water, you don’t camp by water. If you can’t by water, your animals and you are going to be polluting it, messing it up so they’re back, maybe in our modern terms, about a kilometer back. You take the animals to the river to drink and then you take them away. You do not bathe in that river, you take the water away from the river and you bathe away from the river so you do not pollute the river.
The rules are very strict and very clear and they’re from the time of Genghis Khan about how to deal with … But also, it’s dangerous to live close to the river because there are flash floods in the summertime, you could suddenly have it and it could wipe away if your camp is right there by the water. So, the people, they live with nature in a way that I don’t see anywhere else in the world. And even today with the changes with the cell phone and with solar panels and they could get TV out in the middle of the steppe, still they’re living a similar life. The young people, of course, want to drive a motorbike but they’re still herding cows and yaks and camels. If it’s on a motorbike, okay, they’re still doing it the Mongol way.
So, the language itself, I have never ever mastered all the words just for the colors of horses, much less for all the other things about it. I can remember, Mongolians, being out there in the countryside, they say, “Oh, I want to learn English.” I say, “Okay. Yeah, that’s nice, you teach me some words in Mongolian, I teach you some words.” “Okay.” They say, “What color is that horse?” I say, “Brown,” they would say, “Brown.” I’d say, “Yes, okay. What color is that horse?” “Brown.” Then they said, “But you said this color was brown, what color is this?”
I said, “Well” … It’s just amazing. They have words based on how smooth the coloring is and the variation in the texture and all the different … Today in English, sometimes you can put them together, we say yellow brown or brown brown or black. But the words for horses, of course, by sex and then they have three because they have geldings and so they’re very important too and by age and by whether or not they’ve reproduced in the case of the females, all these things are important parts of the horse and the horse. And the horse …
A few years ago, a presidential candidate ran under the slogan raised in the dust of many fast horses. It just resonates with the Mongolian spirit and the dust itself is important. The Mongolians, they will wipe the sweat and the dust off the horse and wipe it onto their own forehead which is the most sacred part of the body where the soul resides. This is how intimate a relationship is with the horses and they’re hard on them in some ways, they train them very well, they ride them very hard but the horses are also trained for that. They use a very small crop, it’s a little bit like a stick with a slight whip at the end, that they hit the rump of the horse, never anything else. They’re horrified at Western people who use metal spurs and metal to harm the horse in the stomach. And to harm the head of a horse, they say it’s a capital crime. I don’t know anyone who’s ever executed for it but you never ever harm a horse’s head.
So, the horses are important in every way, even religiously important with the making of the fermented horse’s milk that the mother goes out every morning and she throws some to each of the four directions to start the day and they use it for every kind of thing. But some things puzzled me that, in my watching, I remember one day being with a very nice family, it happened to be on a gelding day when they were out there gelding the would-be stallions who don’t get to be stallions. But this family, they had a bunch of boys and only one or two girls, there were four or five boys and one boy was maybe 11 years old, he fell from the horse. You could see it not so far away, he fell from the horse and he didn’t get up. No one moved. In fact, they all turned attention away and I thought, what am I supposed to say? “This boy fell down, somebody go get him.” No.
And then the boy was trying to hobble back, he still had the reins to his horse, but he couldn’t remount and he was trying to hobble back so his little brother went out to help him come in and they came into the ger and they sat down, the mother just turned her back. And I’m thinking, how on earth can you do this? This is a child, this is your child. But two weeks later, by chance, another boy who is practicing for Naadam, the annual races this boy had been doing, he was often in an area right close to the mountain area and the horse bolted, took off through the woods, he was knocked off by a tree and then the horse went deeper into the woods, the boy followed him, the boy became lost. The boy was 12 years old, he was lost for two weeks and he lived. I would’ve died in 48 hours, he lived.
He said, well, he slept in the daytime when it was warm, he walked at night when it was cold, even though this was the summertime, the nights can be quite cold especially on a mountain, and he sang loudly all night long to keep the wolves away. And he knew what to eat and then he walked until he found water moving and then he would follow that water down to the … He lived and I realized, the boy falls from the horse, his mother’s not going to be there, she knows that. And it’s probably hard for her too to see her boys suffer but she knows.
They’ve also, I read, used crossbows later, they’ve adapted the technology and there’s a particular kind of a thumb draw that you use for shooting with the composite bow that works for a horse. The thing is bouncing up and down, so you have to not drop the arrow. It’s just incredible to be able to shoot while the horse is going 60 kilometers an hour. Anyway. Can you speak to this exceptional excellence that Genghis Khan and the Mongols had for riding horses and engaging in war off of the horse?
But by staying on it, they learn the horse, they become one and, not just one horse with one rider, but one rider with several horses. Usually, five is the number that you should have for you when you go off to battle and this ability to shoot. You have to defend your animals, there are wolves around, foxes, other things, in some areas, there were even tigers and other animals that would come in and you had to be able to shoot to defend it against other people who might be raiding you. So, they became excellent archers that had composite bows that were very powerful, much more powerful than those of most sedentary people. Now, I say all that because it’s very important but those are all nomadic traits of the great steppe anyway. In an earlier version, you had the huns who came out of Mongolia and hun is just the Mongolian word for human. Hun, to this day, that’s what they say for a human being. So, they came out of Mongolia and all the early Turkic groups came out of Mongolia and they had similar skills.
So, you have this perfect weapon but also you have to have perfect strategy and how to coordinate it and organize it and use it and this is where the genius that I cannot explain at all but the genius of Genghis Khan came in. Other people, I think, had been very good in earlier times, a number of Turkic leaders or even Attila the Hun who, of course, was actually born in the West but they were charismatic leaders and very dramatic leaders and it wasn’t that they were so excellent in their strategy, they were very good in warfare and that’s what carried them through.
Genghis Khan’s army was extremely good in warfare but small. He never got probably above 100,000, at the most 110,000. That is small. When you’re going against China that has millions just in the army, not to count in the country, and you’re going against Russia and you’re going against the Middle East and Persia and Afghanistan and these areas, your whole army has to be as finely tuned as each rider, each bow and each horse. That’s the weapon but the army becomes the super weapon of Genghis Han, how he organized it, on how he used it and the strategies that he put together.
So, if you submit to the orders of the man in charge, you know that he’s risking his own life for you also and you know that your brother on the left and on the right is risking his life for you. The army, they were organized with five horses each man, they had their bow and they had a lot of arrows, as many as they could have, but they also retrieved arrows at the end of their battle and they also would retrieve the enemy arrows. This was a great advantage, by the way, when they hit Russia because the Russians could not use Mongolian arrows, they could knock them in their bow but the Mongols could use Russian arrows.
So, all these little things but it’s not even just the arrow, also they had to carry needle and thread. Every soldier had to be able to sew and sometimes that could be a torn garment, it could be a piece of skin or a wound that somebody has. It was a very odd thing when you think about the army of Genghis Khan and they’re carrying everything themselves, they don’t have any pack train behind them and that one of the things they have to carry is needle and thread in order to sew up things.
So, all these little things at the lowest level were important as well at the highest level of his loyalty of his men to him and it went all the way down. Loyalty was extremely important and he organized the army into left wing, right wing or east and west. Mongols, the word for left is east, the word for right is west so those two wings and then in the middle was the [foreign language 01:32:30], the center, this moving center that was his bodyguard and his unit in the middle.
Then usually they would have a vanguard and a rearguard and sometimes the vanguard would go out as much as two years in advance to clear the land, run the people away, scare them, make them go away so that the grass is left there for the army when it moves through. And they never marched the way other armies do it in a line of one following the other, they would always go in long lines spread out in wings so that each horse is on its own path, you can say, but all parallel together. So, they had very precise ways of doing things and this, I think, was the secret with him and he used the best people but he was willing to train them as much as possible, he never punished them for what happened. So, Shigi Qutuqu, for example, the supreme judge, he was command one time of a group in a battle in Afghanistan and he lost the battle which is very, very unusual for Mongols.
So, Genghis Khan went out with him, said, “Okay, let’s go to the battlefield together and look it over and you explain to me what you did and then we will talk about it.” So, he was very thoughtful in the way that he was training the people around him and they knew they weren’t going to be punished, it’s not like these countries where the general comes back and gets executed because he lost. No, Genghis Khan knows every general is going to try 100% and, if they retreat fine, they’re saving Mongol lives, they know what to do, he respects that. So, all these things like that fit together but I think a part of it that was important for him … So, he had this base from steppe warfare already, the horse, the archery and how that all fit together but he was very quick to embrace any kind of other technology that he saw.
I think that sedentary armies, sedentary civilizations, they get stuck in ways, this is how we do it. And we’re going to make it a little faster, we’re going to make it a little bigger, a little stronger but this is how we think. Genghis Khan had no set way to think and, when he encountered the first walled cities around 1209 after founding his nation in 1206, he went out on these raids and I really think there were raids not wars at first. So, he went into Tangut territory of what’s now northwestern China in the upper reaches of the Yellow River. So, he went there and, of course, the cities have walls around him, this is a man who’s never encountered a wall in his life. Well, he did but they were made out of felt, the walls around his tent or felt walls.
Well, they did it and they didn’t know exactly what they were doing and the embankments weren’t high enough and too much water came in from the Yellow River and actually flooded out the Mongol camp. But okay, it happened, we learned that lesson so we’re going to improve it and that became a strategy that actually worked for the Mongols for the next 50 years, all the way to Baghdad. They were able to use it when they conquered Baghdad in 1258.
So, this ability to see things and to try them and, if they fail, to try them in a different way but a better way … We all think we learn from our mistakes. We all, yeah, yeah, I learned from that, I … And what do we do? We repeat the mistake. I think it’s just a part of human nature. Well, it didn’t work the first eight times but I’m going to do it one more time, I think it’s going to work. I know I’m going to win the lottery this time because I got the right … That’s how we think. But he had that real ability to, first of all, to be humble before these other things he didn’t know about, technology, and to understand that he didn’t understand but he could understand it in his own way and he did. Over and over, the Mongols were excellent at putting together new things and new ways and using them against their enemies.
However, that also becomes a tactic and that they would send in a small group of soldiers to attack and the Mongols were able to fire, of course, going forward on the horse, they were able to then act like they were defeated and turn but they could still fire backwards which is the Parthian shot which is unusual in the world. Not totally unique but unusual to fire backwards. But the Mongols also could lean down and fire under the neck of the horse so they’re protected, they had many different ways.
So, they’re firing coming, they’re firing going but, usually, the soldiers who are against them would break ranks to chase them. They want to go, they want to get the weapons, they want to kill the Mongols and, if they didn’t immediately break ranks, the Mongols would often start throwing things out like loot from someplace and valuables around and soldiers usually couldn’t resist it.
So, they’d come chasing out after the Mongols, pale male going in every different direction and then they would get to a certain point and, from behind the two hills, the Mongol army would come and slaughter them. Over and over, this tactic worked, it’s like the one with the water. I’m thinking, the people, how can they not know this is what the Mongols are doing, how can they not know that.
The most famous example is probably in Bukhara. This is a beautiful, wonderful old city, a great place in the world to this day. And they came across the desert. Well, nobody had ever attacked across the desert, so people see dust coming. They think, well, caravan. They don’t even know what’s going on. But it was the direction that was a surprise element in that particular case. So he was able to think in ways that the other people were not thinking yet, and to be able to surprise them.
This is propaganda. It’s terrorism of a mental sort to weaken the enemy. And so when you hear, or even if you know they’re coming, you see the dust, you hear the roar that comes with all those horses and the trembling of the earth, it must’ve been truly terrifying.
And one episode in the north of Persia, modern Iran, his son-in-law, Toquchar, he violated that and was stealing and looting from the people who had surrendered. Genghis Khan called him in and he stripped him of his rank, and he said, “The next city, you go first as a common soldier.” And of course, he was killed in the next battle. I don’t know the name of the daughter, unfortunately. I’ve tried to figure that out. But anyway, it was a close relative to him, and he was killed in the next by violating this law. So that was the law.
If the city fought and the Mongols won, they did not kill everyone. What they did was they killed all the leaders. They felt like the elite had not served them well. And they usually kill the army, because they couldn’t incorporate the army into their own, the army had failed. But the one thing that they valued were all the artisans, everybody who had a skill. And that skill could be making a pot. It could be hammering out a metal plate. It can be weaving carpets, it can be translating or just reading and writing. Every person with a skill was spared.
So the killing of the people who were defeated wasn’t so severe. What was truly severe was if you surrendered, and many of them did, and then they knew they would not be harmed. So they’re not harmed. The Mongols go on. The Mongols are hundreds of miles away and all of a sudden, forget about the Mongols. Chinggis Khan sent word they were supposed to send so many cows or sheep to help. Forget about the Mongols. They’re far away. It’s a… No. He stopped, he returned, he conquered the city, and he killed everyone. That’s the way it worked.
But in Afghanistan, he was sent off to conquer the valley of Bamiyan where the great Buddhas are actually. He was sent to Bamiyan, and as it says in the Persian history, the thumb of fate fired the arrow that shot him down. He was killed. And for Chinggis Khan, he had never lost a family member. Not one. None of his sons, none of his grandsons in battle, he had not lost them, and now to lose the most valuable grandson you have, the one that’s your pride and joy in so many ways.
So he called the father, his own son, to him and did not tell him, did not announce it to the public. And the son came and the son didn’t know why he was being summoned. And Chinggis Khan said, “You have to tell me that you will not cry or moan when I tell you this, but your son is no more.” And the father was… No one was allowed to moan. No one was allowed to cry, no one was allowed to do anything. You just, he said, “Make them cry.” He came down on the people of Afghanistan so harshly. And it went on for weeks and weeks, the killing in Afghanistan. And then it just wore itself out. He recognized that he had allowed his emotions to overcome practicality and the slaughtering of these people should stop. And so he did.
But that’s the only time I know of that he really kind of lost control of his own emotions. It’s something we can all understand, but his response was truly extreme of we will not cry, we will not mourn. They will cry. They will mourn.
I don’t think we should judge him any differently than other conquerors in history and other countries today that fight wars, including our own country. Whatever we are willing to permit our country to do, we should be able to understand why Chinggis Khan or the Mongols did it. You look today in the world, people are killing children, women, civilians, every day. Every day. And it’s always in the name of something, in the name of peace or in the name of God or in the name of our nation. There are always reasons for the killing. And the United States has certainly involved with that. Supplying the weapons for bombing people, invading Afghanistan, invading, fighting in Iraq, fighting in Syria. The United States is very involved in that. And it’s always, oh, but we’re defending democracy. Yeah, we brought a hell of a lot of democracy to Afghanistan. We killed a lot of people.
You can even look back to World War II, our great moment of democracy and bringing freedom and democracy to Germany. We dropped atomic bombs on Hiroshima and Nagasaki. Those were not military targets. We were not doing anything strategic against the country other than terrorizing the country by killing women and children. That’s America. That’s us. My father fought in that war. In fact, he fought in all. He fought in Vietnam. He fought in that war, and he fought in Korea. And he was a good American. I mean, there was nothing wrong with it.
And I don’t even condemn America, but I’m saying, how can we condemn one set of people for doing it and then excuse it in ourselves? But we tend to do that. We, especially barbarian people, people from steppe for example, we tend to demonize them. Or any enemy we have, we tend to demonize them.
Maybe this is a good place to also talk about somebody I respect a lot, Dan Carlin of a Hardcore History podcast. He did an amazing series on Genghis Khan and the Mongols called Wrath of the Khans. I recommend people go listen to it. He had a lot of interesting ideas there. One of them, he presented the idea of historical arsonists. So referring to figures who cause immense destruction, but also paved the way for new developments and progress, basically making this complicated case that destruction often in history paves the way for progress. What do you think about this idea?
I certainly think that these episodes create great changes. You can see great changes that happened because of the Mongol Empire. Now, whether or not that’s a good reason for the Mongol Empire having happened, it seems like a bit of a stretch for me. The Mongols helped to unify many countries. You can think Korea had been three, basically kingdoms, push them together. Everything that you see in China today was a part of the Mongol Empire. They put together North China, South China, Tibet, Manchuria. It was a little bit larger under the Mongols. Even Russia with so many little kingdoms and Duchies and Dukedoms, and the center had been in the Ukraine and Kiev, and they shifted the focus out of Ukraine and more towards into what we call Russia now. And they began the process of the unification and had a great impact on the country.
So in a way, it’s a new creation. Yes, it does arrive out of the destruction, but also I think we need to look where does the destruction come from? And it often comes because the powers around them have been so debilitated and so corrupted, and so decayed of their own lack of moral fiber, that it was easy to conquer them.
Kublai Khan finally conquered all of China. He was conquering a decayed dynasty. When the Mongols conquered Baghdad and overthrew the Caliph, they were conquering a very decayed institution. No one likes war, and I certainly don’t like war, but I’m not 100% against it. I think that there are times that people are going to do it for their own protection, if nothing else, or of their family, and it’s justified in that sense to themselves. It may not be justified in a world sense. I just make the case for being tolerant of what the Mongols did if we can tolerate what the Americans did. And I am American through and through, there’s no question about that, but we overlook all of our things that we did.
That’s interesting, for example, in Afghanistan. We were there for some 20 years. We had made the Taliban stronger before when they were fighting against the Russians, and then we kicked them out, and then they kicked us out. But some of the Taliban leaders are from the Jadran clan, the descended from Jamukha family, from his clan. This is what I mean when I say that The ramifications from that time are still with us, and we don’t even see it.
And when Saddam Hussein went on television for the last time in Iraq to plead with his people, he said, “The Mongols,” meaning America, “The Mongols have returned. The Mongols have returned.” And he said, “The Americans are just the new…” I can see it. I don’t accept it, but I can see how people think. If we can be honest with ourselves and strip away our own lies about ourselves, then perhaps we will be more ethical in our dealings with other people.
We were talking about Dan Carlin, he was critical of your work a little bit, showing it respect, but also a little bit critical, as being a bit too… Emphasizing and focusing a lot on the positive impacts correctly and accurately, but not giving enough air time or describing the brutality of the killing, the hell that is war. Can you understand his criticism?
If you have a nation of 1 million people and you are ruling over hundreds of millions of people, hundreds of millions of people, China, Russia, the Middle East, you do not do that through warfare. You conquer them initially through warfare, but you do not rule them through warfare. You’ve got to be offering something that they want, something that they like. And all the things you’ve mentioned from the trading system, the postal system, the religious freedom, the rights of women, the rights of minorities, these were things that people responded to. So the world benefited tremendously from the life of Chinggis Khan. But all we want to talk about, and I don’t deny it, is the conquest part. Okay, that’s 20 years. It went on for another 150 years. There’s more to the story than just conquest.
But I’m trying to show them in a different light. That they conquered. Yes, they were conquerors, but they also created great things in the history of the world. And that the Mongol Empire was really the first modern empire in the way that I’m putting together that story. And Chinggis Khan was the genius behind that, who created this idea that there could be one world in which there would be one set of supreme law, but all people could follow their own law.
You could have any religion you wanted, but ultimately you had to obey the great ethics of the sky. And there were things like that about his vision that I think very few people in history had, a vision. And I look around the world today, and in my lifetime, since the time of Roosevelt’s death, I look around, I don’t see much vision. I see lots of slogans, lots of talk, policy papers. Oh my God, we can produce it. Where’s the vision? It’s always, we’re going to have peace and we’re going to have a better life and vote for me or vote for my party and we’re really for the people. What the heck are they talking about? There is no vision there. So what is this country? What should this country be? What is this world? How should we… No. No vision.
Well, his subjects were Muslim, and he outlawed the Muslim religion, and he made all kinds of things happen. So the Uyghurs sent a delegation to Genghis Khan. At this time they knew that the emperors of China were too weak to protect them, so they sent delegation to Genghis Khan and asked him to come and save them from him. And he did. He sent down a detachment. He didn’t actually go himself. He said a detachment down there, they drove Kuchlug from power. Kuchlug fled down towards Pakistan, in that direction, they caught up with him. They killed him. That’s what the Mongols did.
And then Genghis Khan made the first law that he ever made for people outside of Mongolia. Up to this point, it’s been tribal law. And he saw, as we had mentioned before, the tribes were mostly fighting over women. So you outlaw the kidnapping of women, you outlaw the sale of women, and you cut down on a lot of the feuding. But he saw that “civilized” people fought a lot over religion. They weren’t fighting over women, they were fighting over religion. And so he made the law.
Now, this was very interesting, we talk about religious freedom. Religious freedom comes in many forms. One form is to allow institutions to do what they want. So we’re going to allow the Mormons and the Catholics and the Jews and the Muslims each to do what they want in the organized churches that they have. His law was not that. It presumed that. It allowed that, but he said, every person has the right to choose their religion. No one can stop them. No one can force them. The idea that it was individual choice, no one in history had ever thought of that, that it belonged to the person.
It was the same with religion. He gave this right to everybody because it was going to be their own personal right to keep them from being hurt. And then that gave him tremendous support from minorities of many types. And so they flocked to him. Minorities after that, this was a minority effort of the Muslim Uyghurs to come to him, many people flocked to him for the same reason. For that kind of religious freedom.
See, that was another thing. He dropped all taxes on religious institutions, all types. But since the Confucianists were not necessarily classified. But then of course eventually that was abused so much because the religions were then getting everybody did not own a property. You can still use it. You can still farm your land, but it’s ours. And now you don’t have to pay taxes on it. You just give us some money. Got abused. But it started off as a good idea.
So he was exploring, but no, he never changed at all. He was an animist, we would say. That’s about the only term we know to use. Early in life he worshiped that mountain where he took refuge several times. Burkhan Khaldun, Burkhan Khaldun was the great refuge of his life. He would go to the top, he would pray. He would take off his hat. He would take off his belt. He would stand there before the sky and pray. Also later on, actually, this became rather dramatic. He would sometimes go away to pray, should we invade these people? So all of the subjects are waiting to hear what’s God going to tell Chinggis Khan when he goes up the mountain? There are episodes like that, but he was very sincere.
But I think what happened, the Mongols have so many spirits in the water, the mountains, everything around them and you have to know them personally and pray to them and know what they like and don’t like. And should you sing to them or should you offer some milk products or what do you do? You have to know them. Well, you get away from Mongolia, and this was a problem in China, they didn’t know the spirits. This caused great consternation for the Mongols. You’ve got a land here and the spirits don’t like us. They’re hostile lands. We don’t even know who they are. We don’t know these spirits in China. It took a long time. And so gradually, Chinggis Khan, he moved from just the spirit of the mountain that he worshiped, which remained his main focus of worship his whole life, he removed that to the sky. That was the one universal spirit. It was everywhere in the world. The sky was the same for every people.
And so for the Mongolians in their language, the word for sky and the word for heaven and the word for God and the word for weather are all the same, Tenger. Or Mönkh Khökh Tenger in the case of the eternal sky when they’re talking about it in a religious terms, the eternal blue sky. So he became more universalistic in this animist vision of the world. So then the sky could embrace all religions, all religions, and all people were trying to attain the same form of enlightenment. Well…
So he was using the women, but in a very practical way, but it wasn’t necessarily in our ideological way. I think it’s the same with the environment. I’m not trying to say he was environmentalist in our modern way, but he passed very strict laws about the use of water, and also about not using water, that you couldn’t move water into an area to irrigate it. That was violating the earth and violating the water.
So they think, a lot of the historians, they think the Mongols are so stupid, they let the irrigation system be destroyed. No, it takes more work to destroy an irrigation system than it does to create it. They destroyed those systems out of a policy, and that was, “This is going to return to pasture land.”
This lasted, Kublai Khan was the one who changed that, actually, and then started allowing for more irrigation and the movement of water and things. But Chinggis Khan, we can’t use these modern terms of a human rights crusader, or that I’m trying to say he’s a Democrat, the modern sense, or environmentalist, or a feminist. But all of this was a part of it. Another part was the protection of envoys. He said, “Every envoy, every ambassador, every messenger is protected from arrest, from torture, and from killing. And if you kill one of ours, we will wipe you out.”
And in 1240, that was the destruction of Kiev. This is after Chinggis Khan already know there’s Ogedei Khan, his son, the happy, happy drunk. Ogedei Khan’s army had come there under Subutai, the greatest general of the history of the world, I would say, Subutai, person who’s not … It wasn’t Chinggis Khan for the military part. He was the greatest strategist for organizing everything together. But the military part was Subutai. So Subutai had been there, and they sent in an ambassador who happened to be a woman. Now, some of the western sources say a daughter of Chinggis Khan. I have no evidence of that, and I don’t quite believe it, but maybe she was kin to him or something. Some say she was a daughter of Chinggis Khan. Others say she was a witch. The people of Kiev decided she was a witch and killed her. Okay. That’s it. That’s it. Kiev was destroyed for killing a Mongol envoy.
Well, they raised the status of merchants very high. This was particularly a problem in the Chinese world. It wasn’t so much in the Christian or the Muslim world, but certainly in the Chinese world, where merchants were considered extremely low. And all of a sudden he raises them up above scholars. They’re going to have certain rights. For example, they get to be taxed one time. Whatever the national tax is, that’s it. They’re not taxed every time they stop in some new town.
And he created a set of what we would call rest houses, or recuperation centers, where they could get fresh horses, they could get food, they could deposit their money and get paper receipts that could be used anywhere in the empire. They were guaranteed protection. If they had to pass to an area where it might be dangerous, then a small group, a squad of men and horses would go with them. So trade was extremely important. And then the Mongols also, they supported trade in a very odd way, and that is the merchants would come in, and they would ask for an outrageous price for some goods, much more than they should get, waiting for the Mongols to bargain them down. The Mongols would say, “I’ll give you much more than that.”
And his son, Ogedei Khan, was the one to ask, “Why do you do that? You’ve got to stop doing that.” This was a Muslim financial advisor. He’d called in. He told him, “Well, you’ve got to stop paying more than people ask.” And Ogedei said, “Where’s the money going to go? It’s still in my empire. It’s going to come back eventually.” And so they had a much different attitude, with great respect. And I think a symbol of that is in the time of Kublai Khan, when we see that his uncle and father went to China and came back from China, and then on the second trip, Marco Polo went with him to China and back. They were safe the whole way. Their goods were safe. They came back with tremendous amount of wealth. They were never harassed. And the mere fact that they could cross, it took two years, but the mere fact that they could cross the whole continent safely and come back, it was unprecedented. We really don’t have any well-documented case of anybody, say, from China visiting Europe or Europe visiting China before the Mongols. But since Chinggis Khan, there’s never been a year without contact between east and west. It was permanent. Once he created it, it was permanent.
In fact, the Mongols have a simple system. They reduce all animals to the number of horses. You can ask somebody how many animals you can have, and they can say, “Well, 100 horses.” And it doesn’t mean they have 100 horses. It’s going to be like five cows count as four horses, five sheep or five goats count as one horse, four camels count as five horses. So they reduce it all down like that. The Mongols take a census of everything.
And that’s one of the first things Chinggis Khan did. And that was one of the demands he made of every place he went, is a complete census of your people. And every house had to post outside, how many people, how many animals, what did they do, the occupations, all this information.
So they needed good mathematics for this. The Muslims provided it. So they took the Muslims to China, these Middle Eastern scholars and all. Unfortunately, they were rather ruthless sometimes when it came to implementing the tax policies, but they became the financial advisors to him. Other groups of people had other roles like that, and he was moving them around constantly. And so you had a combination. As I said, he himself had that genius for combining new bits of technology, but it created a new kind of cultural spirit, in which other people were also combining technology at other levels, and being encouraged. It was no longer heresy or the devil’s work to bring in this thing.
So we had the spread of printing, for example. We had the partial spread of something such as print money, for example. But we had almanacs being created now through printing, that combined different calendars and different information that was coming along. But one simple but lethal form of technology was that, for example, Chinese had gunpowder. Mostly it was used for fireworks, religious things, and then sometimes in warfare was used for kind of primitive hand grenade, or primitive bomb that could be thrown with a trebuchet.
This was in the time of Kublai Khan more, the grandson. So they had that. The Middle Eastern, the Muslims, and the Byzantines, especially, they had naphtha, what we call Greek fire, flamethrowers that could set things on fire. The Europeans did not excel very much in technology. They were behind in almost everything, but they could cast bells for churches.
Okay, let’s take that bell and we’re going to turn it on its side, and we’re going to use the principles of the flamethrower, and we’re going to use the gunpowder from China, and you’ve got a cannon. So the Mongols, even early on, by the time they got to the siege of Baghdad, but not, I think, in the lifetime of Chinggis Khan, but soon thereafter, in his sons and grandsons, they were using some very primitive forms of cannon. And even something like firing rods. We can’t even call it anything like a rifle, but it could fire a very small ballistic device and all. So this combination of metallurgy, gunpowder, flamethrowers, you put it all together and you come up with something incredibly different.
So to conquer South China, Kublai Khan had to come up with new things. One thing, the South Chinese had built a great wall. It was called the Great Wall of the Sea. This is before the wall that we know as the Great Wall, which is really the Ming Wall, of the Ming Dynasty, was built, but the Great Wall of the Sea. And they used it as a defensive navy. They had the largest navy in the world. It was defensive, and it was both literally defensive, and it came time for warfare, they would chain the ships together across the mouth of a harbor to protect the city. And so it became a wall.
But Kublai Khan was born that year in 1215, about three months after the capture of Beijing. And he was nobody. He was the second son of the fourth son of Chinggis Khan. Well, he’s got lots of cousins out there who’ve been riding around. They’re conquering Russia, and they’ve already burned down Kiev, and they’ve conquered different places in the world.
They’re real Mongols. That’s their whole life. And he’s born, and he doesn’t meet Chinggis Khan until he’s about seven years old, because Chinggis Khan was away on a conquest in Central Asia. And Chinggis Khan came back and he met him and he said, “Oh, he doesn’t look like a Mongol. He looks like his mother’s people.” His mother was Sorghaghtani, who was actually a part of the royal family of the Merkit people, whom he had conquered sometime earlier.
And he said, ” He looks like his mother’s people,” who is a little bit more tawny. Mongols tend to be very white with very bright red cheeks, and have a certain very round face, and so on. And so he looked different. And for whatever reason, his mother, I think she recognized the difference, and treated him differently. Her oldest son was called Mongke, later Mongke Khan, Mongke, and she wanted him to become, even though her husband was a drunk, who died out on campaign drunk, and she took over northern China and she began to put it together.
And she wanted her son to become the Great Khan, the emperor of the Mongol Empire. And this wasn’t in line. This wasn’t going to happen. Because he’s the fourth son out of three, others are way in line, way ahead of her.
But she calls the revolution. She made it happen. She put her son in, Mongke Khan in 1251. He became Great Khan. He only lived till 1259. He died of something. It could have been cholera, or there are different stories, and I don’t know the truth of it, but he died on campaign in China trying to conquer Southern China.
Well, up to this point, Kublai Khan had not been distinguishing himself. His mother was, she was a Christian woman, but she had a Buddhist nurse for him. And she had Chinese scholars come in to tutor him. She had a very good education for him. And I think that she planned that he was going to be a great administrator under his older brother, and he was going to administer the lands in China.
And so he was learning all this stuff for it. But the older brother, he insisted on sending him out on campaign. Oh, but he was overweight, he was fat, he had gout. He needed to go rest. There was always some excuse. And the brother was assigning people, Uriyangkhadai, who was the son of Subutai, the great general, he assigned him to teach him warfare. He wasn’t great on the battlefield. He really was not. But he was very smart. And at first a little bit lazy, he liked talking about the religion, sitting around, go hunting, as long as he had many with him to do the shooting, and then to prepare the food and all. And his territory in Northern China was just being run into the dirt by these administrators the Mongols had brought in. They were just overtaxing the people, cheating the people, doing everything wrong. And his mother basically just pulled his chain and she said, “Go to your land. This is your land. You have to administer this land. You go there, you live there, you take charge.” And everybody was terrified of the mother. So he ran off to China and he started administering his land, and he started learning how to do it.
Well, when his brother died in 1259, he was down on the Yangtze River, on a campaign that he was sent by his brother. He was having no success at all. But he thought, “Okay, the brother’s dead. I should finish the campaign.” Meanwhile, his youngest brother, Ariq Boke, Ariq Boke was another hothead Mongol like their father, Tolui. He was rather hotheaded. And he was back in Mongolia. And his tolerance for religions, he had to oversee the debate one time between the Daoists and the Buddhists, because the Mongols thought the Daoists were overtaxing everybody, the Buddhists.
So he had to oversee it. He got mad, and he picked up a statue of the Buddha and beat the Daoist representative to death. So he just wasn’t good for moderating debates. So he was going to be the new Great Khan. So he was declared the Great Khan in Mongolia. But this was a turning life for Kublai Khan, who had never achieved much of anything other than talking to people.
So his wife, Chabi sent him some coded messages, basically telling him, “Forget about Southern China. It’s going to always be there. You can conquer that some other time. Right now, your brother is taking over the empire. You should be the new Emperor. You are the next son after Mongke Khan.” And somehow she invigorated him, and he came back. And even though he didn’t have all the military strategy, he had Northern China, the resources were immense.
He could cut off Mongolia. Mongolia was very dependent on Northern China for food. All the Mongols supported Ariq Boke, all the ones in Central Asia, all of whom were supporting Ariq Boke. So he went to get food from them, and then they didn’t want to give up their food. “Yeah, we want to support you for Great Khan, but we’re not giving up our food.” So he was basically starved into submission in 1262. And then he was taken prisoner into China, and then he mysteriously passed away in 1264, while a legal case was being brought against him for trial, but he never made it to trial. He was gone.
So Kublai Khan had not really distinguished himself very much, but he didn’t have the genius of his grandfather. I won’t say that. But he was smart and clever. He understood more about China than most Mongols did, and he understood more about Mongols than most Chinese did.
So the great thing left, that Chinggis Khan said on his deathbed, “Finish conquering China.” That was the great objective. So Kublai was going to fulfill this, and they didn’t know how. The Great Wall of Ships was protecting the Southern Song. This huge Yangtze River was so wide, the ocean on the side, all of these things were protecting them.
So he had one of his very smart generals named Aju, who was a real Mongol, but he was also able to think in innovative way. He was the grandson of Subutai, and he went with his father Uriyangkhadai on the conquest of the Red River of Northern Vietnam against the Dai Viet people. They went down the river. They were trying to surround this Chinese territory. So they were going to hit them from the north, from the west, and from the south. So they went down the Red River to conquer the Dai Viet. The Dai Viet moved the army up on the other side by boat. And then they had a whole core of elephants.
So they have the Mongols on one side of the river, the Dai Viet forces on the other side. Uriyangkhadai was a smart man, not a genius, but smart. And he already knew from campaigns in Burma that the only way to route the elephants was with flaming arrows to their feet. That was it. But he recognized that they came up on boats. Mongols didn’t like boats. They crossed the river on a goatskin. They wanted to do something organic. A boat was like a cart. A cart belonged to a woman. It was a floating cart. I am not going over on a floating cart. I’m going to ride a goatskin across the river. So he’s assigned one detachment, “You have to burn the boats so the Dai Viet cannot escape when we route the elephants.”
Well, the battle, I mean, got started. The elephants are running wild. All kinds of chaos is going on. The group that’s sent to burn the boats, they’re Mongols. They want to go to war. Why burn a bunch of women’s carts? It’s just not floating … So they go and join the battle. They leave the boats. Well, the Mongols won the battle, but the Dai Viet forces got on the boats and sailed back to what’s now Hanoi. And then they evacuated the city, took all the food, everything out of the city, and they disappeared into the Delta. The Mongols arrived. They conquered, quote-unquote, Hanoi, the capital city. And they had nothing. They had nothing. They won every battle, they lost the war. They retreated. Aju was the son of Uriyangkhadai, and he saw all this happen, and he recognized the importance of water and boats. And so he knew, and he spent his time studying the Yangtze River and every little river around it, and the cities.
And the crucial thing he saw was the cities are heavily, heavily fortified on the land side, because invasion comes from the land, and they expect this little line of boats to protect them on the water. And so their city walls are weak. The defenses are weak on that side. That’s where we have to attack. So how?
They sent off to the Ilkhanate, to Persia, where Chinggis Khan, his uncle was now dead, and his cousins were ruling there, or his nephews, we would say, or cousins, nephews. So they sent over engineers to build special kind of trebuchet, a catapult. And they had to play around with it to adapt it for a boat, because they were usually made for stable ground, but they adapted it for the boat and for throwing heavy things. And also for some incendiary bombs, they developed it. They attacked the first city, it fell. They attacked the … it fell. They had something that was working. They worked their way down the Yangtze River, destroying city after city with this navy. And then the army would move in after the navy had broken down.
And at this point, we have a child in command. But Kublai makes a very strange move. He says, “Okay, let’s invade Japan now. They’re thinking, “What? Wait, wait, wait. We’re fighting against the Song Dynasty.” And most people ascribe it to all kinds of things. But actually I think there was a great logic to it. One was, he had abolished his grandfather’s policy of defeat and destroy until they are no more. That was the phrase that was used for their enemies. And he had replaced it with a kind of mercy policy. Try to incorporate them into your army of possible, but be merciful. He did not want to destroy. And he was not. He had a lot of defectors coming in. And because the Mongols prized people with skills, a lot of very clever people, with ship building, and engineers, and these people were flocking to the Mongols. Whereas the scholars were all hanging out in Guangzhou, doing calligraphy, and poetry, and having contests over who could sing or paint or … I don’t know what scholars do, but they were being scholars.
But I think there were other reasons. If they could trade, they could also perhaps flee to Japan. And they didn’t want that to happen. And then there’s this idea of kill the chicken to scare the monkey. It’s like, okay, we’ll go do this. And then maybe they’ll just surrender down there if they see us conquer Japan.
Well, it was a total failure. You’ve got a bunch of ships that are mainly great on the river and right along the coast, and you’re crossing some treacherous water there. And the Mongols basically just did not know what they were doing. Okay, you can arrive with the trebuchet and you can throw grenades at the beach. It’s not really going to do a lot of damage. It might scare a few horses, but you’re not destroying cities. And the Japanese cities were more in, they weren’t on the beach waiting for Mongols to come invade. So he failed in that invasion.
The samurai, almost at that point, you ride out in front of your enemy and you recite the story of your genealogy. What? Mongols, they have no use for that. They’re there to fight. They’re there to win. But on the other hand, this was unknown territory to them, and the weather did turn against them. But I don’t want to give too much credit to the weather. I really think that the Japanese defeated them. The Mongols weren’t well-prepared. Their ships were not very good. They were defeated in the first invasion.
Also, it gave him, navy some experience with the ocean, and now they were ready to move out into the ocean around Southern China. So they were closing in then. Aju was in command. But actually the head command was a man named Bayan, who was a Mongol who had been raised more in Central Asia. He was perhaps close to the Fergana Valley, in that area. We’re not exactly sure where he was born, but he grew up over there. And then he eventually was living in what’s now Iran.
But he came and he took over command of the army. He was very cosmopolitan, sophisticated, intelligent. Aju should have been in command. But Bayan recognized that, and he and Aju worked together very well. Aju knew how to fight the war. Bayan was able to negotiate things back with the capital city and handle things. So Bayan is in command.
And so the generals are deserting the South Song right and left. The artisans are all coming up to join the Mongols, get paid. The generals are loading up the boats with all the jewels, and they grab a couple of brothers to the little five-year- old emperor, and they put them on a boat, and they’re fleeing. They even deserted their own families. The generals were corrupt cowards who fled. The person left in charge was the Dowager Empress, an old lady. She had no children. Cixi was her name, the Dowager Empress Cixi. They said she was missing an eye. She was ugly. They called her Ugly Cixi. That’s what they called her at that time. She was in charge, and she offered the Mongols everything. “I’ll give you everything-“
So they’ve taken the capitol and she comes out, she surrenders, she bows on the ground towards Beijing, and then she takes the child emperor and they slowly make their way. She was a little bit sick. It took her a longer time to Beijing, and they surrender again in a public ceremony, bowing to the Kublai Khan. He gives each of them a palace. He gives them a new title. He’s trying to show the world this is the new face of Mongols. We don’t kill off the old people anymore who are ruling. We’re gonna give them a palace, treat them nicely and all. But the navy that had fled did not defend the city. Those cowardly generals, they made the new little boy, seven-year-old brother, half-brother to Emperor Gong, was his name. They made him the emperor.
Well, they’re just floating around on the ocean, losing all support from city after city. The Muslims, who were controlling the trade and controlling many of the ships of that area, they were Chinese Muslims, but they were still Muslims. They switched sides to the Mongols because of the religious freedom thing, and because they were merchants and their status would be raised. The Muslims were switching over. The fleet was kind of a fleet lost without a country out there. They had some loyal supporters, some places. They drop the emperor into ocean.
The little boy is there, seven-year-old emperor, Bing was his name, with his pet parrot. That’s the only thing he had left in life, was his pet parrot. And then the Mongols, they offered every opportunity, but the prime minister, so-called, coward that he is, although he’s treated as a hero today in China and throughout their history, the coward that he was, he said, “We will not disgrace the country by letting them capture the emperor.”
So first he threw his own wife and children into the water to drown. And then he took the emperor and held him, he was seven years and one month, he had just turned seven years old, and jumped into the water with his child. A child murderer. He’s a child murderer, to do that. Somehow in the whole ruckus, the cage came undone with the parrot and the parrot fell in the water too. So the seven-year-old boy and the parrot died in the water. That was the end of one of the greatest dynasties in the history of the world. The Song Dynasty, they were intellectually great. They were artistically great. They were technologically great. They were just one of the greatest moments of world history. And it ends with this coward killing a child and his pet parrot in order to save the honor that was betrayed by this woman. The men lost the war. The men lost the war. Who’s to blame? An old one-eyed, ugly lady Empress Xie?
And also, just before that, there’d been a bad sign because Kublai Khan had tried to invade Japan a second time, and he had failed a second time. And the second time, I think again, he had a practical purpose, and that was he had this whole huge Song army that now he’s the new enlightened Mongol who doesn’t slaughter. What is he gonna do? They’re not reliable. They’re not safe. So he sends a bunch of them up into the Amur River of what’s now the Russian Far East, or we call Siberia in English, but the Russian Far East, the Amur River. He sent expeditions up into Tibet, exploring options up there, but there wasn’t enough room, or enough agricultural area for a huge military colony.
But most of his ships were loaded with former prisoners of the war from the Song Dynasty. And they were not armed. They had hoes and implements for farming. He wanted to create, obviously, a military agricultural farm in Japan to help feed Northern China, ’cause it was very important. Just as they were doing with the Amur River, but it was more complicated. So, again, they lost. They didn’t have it. And part of the reason is the expedition was massive, and they organized it in the Mongol principles of left wing, right wing. This didn’t work at sea ’cause the left wing is from Korea. There’s Korean ships built up there. The right wing is from Southern China, mostly, with ships built down there. They’re not the same. They have a head, but there’s no center point. Genghis Khan always had the gol, they called it, G-O-L, the gol, the center, or Q-O-L, qol [inaudible 03:01:14]. But he had the center in command. No, he sent the two without a clear… And they were arguing with each other, not cooperating, not helping each other, sabotaging each other.
They get there, and once again, they have the same problems. Even though they’ve come with lots of grenades this time, again, the grenades are exploding. They’re scaring the horses. It’s impressive. And a lot of silk screens are made later showing these impressive battles and all. But they lost. And again, a typhoon happened to be the final destruction of the navy. But I think Japan had defeated the Mongols. I would say. Japanese deserve credit for that victory. And then the sinking of the ships was more caused by the typhoon. But already the Japanese had developed good strategies while the Mongols had been away. They knew how the Mongols fought, and they knew that at night they could fire flaming arrows at the ships, set them on fire, and they were doing great damage. So again, Kublai Khan lost the invasion of Japan, but the soldiers were gone. They drowned. He didn’t kill them off, was his deliberate plan, but the problem was solved.
It’s one of those ironies of history that is hard to quite understand. So this had happened, but then Kublai Khan was coming to near the end of life, and Marco Polo and those wanted to get out, they’re ready to go. And Kublai Khan allowed them to sail on this expedition with Kokochin, was her name, the Princess Kokochin, to go to Hormuz. And so they went, and that began a whole system of trade, back and forth, back and forth. Kublai Khan died soon after that. His grandson, who’s not so well respected in history, because he’s often called a drunk, but his name was Temur, Temur Oljeitu. But he was a drunk when he was young, but his grandfather had him caned a couple times in public, and he cured him of drinking. And actually he was not a drunk later on.
And first he reassembled the Mongol Empire. He did. The Golden Horde declared loyalty to him, recognized him as Great Khan, as emperor of the whole empire, the Chagataid of Central Asia, they declared loyalty to him. The Il-Khanate was already loyal to him. They all declared loyalty. He had reassembled the empire and he had the greatest navy in the world, and he sent out envoys to every place they had attacked or traded with to say, “That era is over. We’re no longer attacking anybody. We’re changing from conquest to commerce. We want to trade with you. Come to China, bring your goods. We’re gonna trade with you.” He instituted, it was short, unfortunately didn’t last forever. I wish it could have. But it was a great era of the exchange of all kinds of things going back and forth, actually all the way to Africa, ’cause from Hormuz they had connection to Somaliland. And some people say Kenya already at that time, I’m not sure, but very wide. Very wide.
However, I believe the best work written about Marco Polo, aside from his own book, which was actually written by Rustichello, dictated in prison in Genoa. In the 20th century, Eugene O’Neill wrote a play that became a comedy on Broadway called Marco Millions. That was both a play on what he was called, Il Milione, the million, ’cause he had talked about cities of millions of people, and about money in the millions and things that people in Europe just couldn’t believe could happen.
He then published his whole play as a book to show people what he really meant. And it was an ironic look at capitalism, ’cause this is 20th century already, versus the idea of like a philosopher king, which he saw in Kublai Khan. And so Marco Polo becomes a symbol of capitalism, not at its worst, but at its most basic. And that is like the princess in this story. This is not in real life, but this is in the play written by Eugene O’Neill, but I think it captures a lot. The Princess Kukachin says, “Marco is an excellent judge of quantity,” and there are things like that.
And then in the play, Bayan, the great general, he talks with Kublai Khan and he said, “Look, these people are dangerous from the West. We should go conquer them now while we can.” Kublai Khan tells Bayan, again in the play, this is fiction, but he tells Bayan, “They are not worth conquering, and if we conquer them, we will become like them.” And he said, “Marco Polo has been in our land. He has seen everything. He has learned nothing. He has seen everything. He understands nothing.”
For me, this was such an important moment in the history of the world, symbolically. With Marco Polo and Kublai Khan, the coming together of two worlds, it could have gone a different way, it could have gone a different way. It’s not that I’m anticapitalist, I’m procapitalist, but the way so many things worked out, it was a misstep in history. Maybe we took the wrong step at that moment, and we could have learned more from cooperation.
Just as I’m respectful towards Genghis Khan and the Mongol Empire, I respect China very much. I’m an American. I love the ideals of my country. I love so many aspects of our culture, and there are many aspects I don’t, of course, because it’s impossible to love everything, even about the members of your own family, you know?
But it is true that even Yam. Yam is the word that was used for this postal system. And that’s the ministries today in Russia. There are many, many other things in Russia. Even Malchin. Malchin is a herder, mal is an animal, and chin is a person who takes care of animals. It’s all kinds of influences in Russia that some people want to deny. But there’s always a great powerful strand of research and scholarship in Russia that supports this understanding of the Mongols. And I depend on them tremendously.
It’s not just Gumilev is one of the famous ones, but he was a little bit too romantic with his ideas and all. But I depend upon a lot of the research done by Russian scholars and by early German scholars in the 19th century under sponsorship of the Tsar. So I depend on that work. So you had a great influence there, but it was weakening. So bit by bit, 1368, the Mongols had become so weak within China that they were overthrown, but they weren’t absorbed into China. The Mongols had been there since 1215 to 1368. They packed up, went back to Mongolia. It was just another seasonal migration.
Everything in history, everything that’s good comes with something underneath it that’s bad. And everything that’s bad seems to have something underneath that sometimes works out good, in a way. But this great system that united, it’s called the Yam or Ortogh, that had united everything, people could move back and forth quickly that it could also take the plague out of Southern China into all parts of the world. And I do think that’s what happened. And the plague destroyed the Mongol system.
And if all of these people are ruled by Mongols because they’re benefiting so much from this system, and now the system collapses, you don’t need the empire anymore. So it just fell apart. After 1368, the empire just fell apart, and most of them stayed in Persia and Iran and Afghanistan. The Hazara people are still descended from the army there. And then in Russia, some of them stayed. But then finally in the time of Catherine the Great, a lot of them were returned. They had been there for hundreds of years, and then they returned to Mongolia in the 1700s. And so, many Mongols came home. They were still Mongols. Despite hundreds of years of exposure to other cultures, they came back to their tent and squatting around the fire and drinking fermented milk and eating dried curds.
So they go in, they get trapped in their little tiny green zone. They never conquer Iraq. The strongest army in the world. This is something that worked in Europe, World War II. Yes, we bombed the cities and we took the city ’cause that was the center of production for the modern era. But the countryside is the place that produces the food. The Mongols were very aware of that, and supplies the water. You cut off the water from the city, you cut off the food for the city. What’s the city going to do? They’re going to surrender. The Americans were applying something that worked in Western Europe to conquer Germany. It did not work to conquer Iraq or Vietnam, or even Northern Korea or Cambodia or Laos or Syria or god know. It worked only in Grenada. I think, in my lifetime, that’s the only successful war we had. Lasted a couple of hours. We went in, conquered the little tiny island. Otherwise, we’ve been chased out of every country. We’ve lost it, tail between our legs.
We dropped more bombs on Cambodia than we dropped on Germany. It’s hard to believe. Hard to believe. We dropped more bombs on Cambodia than on Germany. We did nothing. Because Germany, you destroy the cities, the people surrender. Dresden’s gone, Frankfurt, [inaudible 03:23:07], Berlin. In Cambodia, you can bomb the countryside forever. You can kill the people, and they did. You can use chemical warfare, and they did. And you could still go into the eastern part of Cambodia and you could go to large areas where you don’t hear birds singing because of their chemical warfare of American bombs. So we still do it, but we don’t want to admit it, and we don’t want to go in to win. In World War II, the Americans did have unconditional surrender. Well, I mean, you can support the war, not support the war. We did it right. We did it wrong. These are all issues that people can argue. But we had a clear policy. We go into Afghanistan, we’re fighting terror. We’re gonna bring democracy, we’re gonna free the women. What? I mean, it’s absolute sheer insanity, the things that we did.
They go home, they have the disease, they linger. They take the whole family down with them in an emotional trauma of becoming slowly paralyzed and dying. We did that to our own people. So yeah, warfare. I don’t think we’re any more humane with it any better today than in the past. It’s just we can hide parts of it more easily and deny it more easily. If you’re killed by a Mongol, it’s very clear you’re killed by a Mongol. You’re killed by friendly fire in American war, it’s a different matter.
He was the late great law giver of the Mongol nation. And so he seated there in front of the Mongolian parliament. There’s another statue that’s better known, but it was a private enterprise that created him on horseback, but not with a weapon. But he’s on horseback out in the countryside. But the official one from the government is Chinggis Khan seated like Abraham Lincoln, and they issued stamps to show that he is the great law giver.
He fell from his horse and he injured his leg very badly, and he seemed to decline from that point, and it took some number of months before August of 1227. He was very much near the end of life. You can read online the exact date, and it’s all very specific. But the truth is we don’t know exactly which day he died in that time because one of his wives was running the camp and they were keeping it secret until the defeat of the Tangut was completed. And the Tangut offered all kinds of things for the Mongols to go away again the second time. And Chinggis Khan told his family, “No, accept nothing. And then when they surrender, you kill the royal family, kill them all.” So that the idea, they were Buddhist people, the Tanguts were Buddhists, and the idea was usually you can be reborn into your own family. But he said, “No, you kill off the whole family, so they can’t be reborn.” So he died there.
And the next one was Tolui, the father of Kublai Khan. But he was still alive at this point. So all four of them came. So Chinggis Khan explained to them he wanted to talk about the succession and to get some consensus from them about the succession. And so he said… The Mongols always call on people to speak by order of age. They also serve tea or food, anything by order of age. It’s always done that way from then until now. So he called first on Jochi. And he said, “What do you say, Jochi?” Chinggis Khan favored Jochi. This is the one who was questionable paternity, but he always favored him. The youngest Tolui was too hotheaded. Ogedei was a heavy drinker. Chagatai was very rigid about the law of the Mongols and all, but he seemed to favor Jochi as a good warrior but reasonable person.
But he called on Jochi, “My son, speak.” Chagatai, the second one who believed in Mongol law supposedly, he jumped up and he said… This is when he accused his father of all kinds. He said, “How can you call on this Mongol, this Merkit bastard? If you call on him first, that means you want him to be the Great Khan. He should not be the Great Khan of the Mongol Empire. This is Mongol Empire now.” On and on. You can imagine kind of scene. Well, Chinggis Khan is the greatest ruler in the world. He’s sitting there being lectured by his second son, and this is when he gave that impassioned speech to his… Actually, the way the secret history, it makes it look like it was his assistant speaker who said it because very often the great power doesn’t say the words directly. They let somebody else say them for them. They have a spokesperson. But anyway, I think it was his words, and I think he said them on that day.
That’s what I think on this business of, “You do not know. You were not there. The stars were moving in the sky, the head was turning around, the Earth was turning over. You do not know who loved who. You do not know who your mother loved. You do not know what your mother did. And if I say he is my son, who are you to say he is not my son?”
So Chinggis Khan knew. So he said to the boys… The boys. These are middle-aged men. They’re not boys. He said to the men, “What do you want to do? What do you want to do?” And he said, “I don’t favor Chagatai because of his attitude and the situation and Tolui is still hot-headed.” He actually end up being drunk and dying early. But the other guys, they said, “Well, Ogedei.” They chose him because he was the most generous and the bon vivant. He was for every party and drinking every time. And yeah, one time, Shigi Qutuqu the great judge who wrote The Secret History, Shigi Qutuqu was sleeping on a cart one time for whatever reason. I don’t know what. I think he also had passed out drunk perhaps, but Ogedei came out drunk and grabbed him up and pulled him back into the party. Ogedei was a party guy.
And so he was chosen as the next Great Khan of the Mongol Empire. But fortunately, there was sort of a plan B, and that Chinggis Khan had set up very powerful women, his daughters, but also he had chosen wives for each of his sons, very, very capable wives. And for Ogedei, he had a wife who wasn’t even his first wife. The first wife would usually be somebody closer by certain clan or something. But he had a very intelligent woman named Toregene. And then she was more or less ruling in his last few years. And then after he died, she ruled Empire in her own name. She was the ruler of the greatest empire in world ever ruled by a woman.
And a lot of them were Muslims. And he killed awful lot. And then he was going to march against the Golden Horde because they weren’t supporting him. So he set off and he died. He was only in office for 18 months, and he was gone. And then his wife took over, Oghul Qaimish. Unfortunately, she was not capable as her mother-in-law, Toregene. Oghul Qaimish was a bit greedy, and she didn’t start any new wars, but she just kind of messed up things. And she didn’t rule for too long. And this is why Kublai Khan’s mother, Sorghaghtani, was able to have a revolution. She united with the Golden Horde. She was on one end on China. She had Northern China. The Golden Horde had Russia. The two of them united against the center. And they overthrew Oghul Quaimish. And she put her son, Mongke, in who was succeeded by Kublai Khan.
But to me, and we actually spoke about this, you can’t get those kinds of numbers with rape. If you want for the empire to propagate the gene, if you were a person that wanted to propagate the genes, you would make sure that all the lands you conquer are stable, flourishing, and happy. And so actually, this is much better explained in the paper. It indicates this. It’s better explained by it was of high value, like social status value to be associated with the lineage of Genghis Khan. And so that means that for many generations, people loved the Great Khan.
That’s not a lot of descendants. We know mostly who they are for many generations. His brother, Qasar, had many more children than he did. Many more. And they caused a lot of problems later on for the Empire too by rivaling the power. So it could be that one of these other people, Bodonchar Deful, could have been the origin of this. It could have been back well before Chinggis Khan. And in Mongolia today, we have nobody who claims descent from Chinggis Khan.
And not everyone, like Guyuk died when he was on campaign towards Russia. He was died out there. I mean he was buried out there. I think his father, Ogedei, was also buried out there. That was more their homeland, but many of them were buried with him. And it’s known and not known at the same time. Officially you should not know it. You cannot know it. It should never be disturbed. He should never be disturbed. We’re not going to have a tour group coming in.
He found so much inspiration in the life of Genghis Khan and the books of Genghis Khan that you can still read. He bought so many copies and gave to the Library of Congress, to the Library of Virginia, the University of Virginia, and to his granddaughter. These ideas live on, and we still have not fulfilled them. We do not have religious freedom. We do not have the protections for women. We do not have the protections for envoys and ambassadors. The ideas live on, and the rulers do not live as the common people to eat the same food, wear the same clothes, sleep in the same, but not a bed in his case, but sleep in the same situation and simple home. No.
All of us say it’s important, but we don’t do it for the most part. We don’t learn from our failures as much as we think. The other idea of promoting people on ability, I think that’s certainly an idea that is very valuable, not in the simple way of meritocracy that we’ve done it with. Oh, if you pass the exam with this score, you get this or that. But really evaluating people and their ability, I think it’s a very good thing. Not the only thing, but I think it’s very important. And even though he failed in the end in his own life, and he turned power over to his sons and his family, it’s a principle that he lived by most of his life, and we can learn from that principle. The other thing I think is just his global feel for the world. His global understanding. Here was a man who had had no education in any formal sense.
And he had this sense that the world should be united. We should have things that unite all people. Everybody should have their own law, but there should be a higher law of heaven that governs people. And this later was translated, everybody should have their own language, but they all write the same alphabet by Kublai Khan. It didn’t work. Or his idea, he tried to impose the use of paper currency in Iran, the Persian Ilkhanate Chinese paper money. It didn’t work. The people there weren’t used to it but all this international spirit of their Empire, I think that we need today. We talk about, oh, globalization, we’re all connected, it’s just incredible. And we’re more provincial than ever. We are just so provincial, and sometimes we use all this technology to help preserve our provincialism. And we can’t think in global terms. We can’t think about the world. It’s just amazing to me how narrow-minded we are.
In 214, he’s just awarded a girl he calls his daughter, so she’s probably a clan daughter, but she lives with his mother at this point. His youngest son, Tolui, is only four years old. A tatar comes and Mother Hoelun gives him food because you food everybody. He realized this is the mother of Chinggis Khan, and that’s the child of Chinggis Khan. He grabs him up and kidnaps him and runs out, and he’s holding the child in one hand, and he’s pulling out a knife with another hand. Altani raced out and she grabbed his arm and held it down. And two men, Jebe and Jelme, they were back behind the ger, slaughtering an ox with an ax because you have to do it in the shade behind the ger. You don’t do it in the light. And so they were back there doing that. So they raced out with ax and they kill the man.
And so then Chinggis Khan is rewarding everybody for all their great deeds. And Jelme and Jebe, they wanted to be rewarded for saving the life of Tolui. He said, “No, you killed a tatar. Altani saved his life because she held the hand that had the knife until you got there to kill him. She saved it, and now we reward her.” So he’s finished that story in 214. We get to 215. He says, “Now, let us reward our daughters.” It’s actually only a phrase. I said it as a complete sentence, but it’s not quite complete. The rest is gone, cut out. It’s missing. And I was just so…
But what happened was the area for Alakhai Bekhi, for example, was then taken over by Kublai Khan and then all the Turkey areas, one by one, were taken over by their nephews as they died out, not in their own lifetime, they didn’t kill the women off. But as they died out, the men took it over. And so, then they just wanted to erase it. It’s like, “No. Northern China, even though it was ruled by Sorghaghtani, it always was Mongol.” She was ruling because her husband was Mongol and her sons were Mongol. Therefore, they had the right to rule it. So, they cut out the women for those reasons.
I think anytime it threatened the power of a particular man, then there are other little things that are added in there. Sometimes you can find a phrase and …
But other things that I learned from the Mongol people in general, not just about their history and all, but how it’s possible to live for thousands of years in a place that for many people it’s not the most beautiful in the world. It’s austere. You have a band of mountains and with some trees, and then big band of steppe and then a big band of sand, gravel, desert, the Gobi. And for many people, it’s not appealing. It’s just open. There’s too much space. It’s like we need to build something over here. Boy, you could have a condo right there. We could have a building and we could sell them off.
They haven’t given into that. They really value their country. They protect their country. Even now, only 1% is privately owned. They keep it down. And Mongolian records, farm and city count is one category. Just it’s settled people. It doesn’t matter. You settle on a farm, you settle in a city, settled people, one category. And they lived there in this land that Genghis Khan would return to and love. If he returned to the capital city, he would not know where he was. He would have no idea. And all the people would just say, “Oh, big Mongolian.” “I’m Mongolian. Yeah. I’m Mongol. I have the hat. I have the belt buckle. I have all the deel that’s all embroidered. Yeah. I’m Mongol.”
And Genghis Khan would say, “Where’s your horse?” “Oh, keep it in the countryside.” But he wouldn’t recognize the city. But it’s still his country, his people, they worship him in a literal sense, not the way we would worship God asking for favors, but in the sense of worshiping him with praise. They have so many songs to praise him. And about half of the hip-hop in the country is in praise of Genghis Khan. It’s something we can’t understand, because when we pray, we’re usually saying, “Oh, thank you God for this and that and the other, and you’re so wonderful and I love you, so would you please give me and would you please do this, and would you please stop this pain in my knee?” We’re asking for things all over the place. But Genghis Khan, no, no, no one ever asks for anything. They just honor him. They just praise him and honor him.
So, that’s a beautiful trip. If you want to see the more Turkic area where they hunt with eagles, the far west is where the Kazakh people live. And the mountains are absolutely incredibly beautiful. Most mountains in Mongolia are gentle, beautiful but gentle. The farther west you go, the more dramatic they become, the more pointed and peaked and snow covered. Then if you go to the Eastern Mongolia, it tends to be very flat. There are massive, massive flocks of cranes that come in every year, millions and millions of cranes. There are also tundra swans that come in and golden ducks and all kinds of beautiful birds out there. And so, each area has something special.
If you want, particularly the history of Genghis Khan, the Mongolians love him, they worship him, but they don’t do too much to capitalize on his home area, the Khentii. You can go to the Khentii. There are areas you cannot go to. Large, large areas, it’s forbidden. But you can go. But they don’t capitalize like, “This is the place.” No. They go there themselves out of respect. But the only one place, they built this statue of him, which is the largest equestrian statue in the world, but it’s the place where they say he found his whip, which is when he was coming back from being at the camp of asking Orgal Khan or Toghrul Khan or Wang Khan to support him. And he’s coming back to his family and on the way, he supposedly found a whip there, which is just a small stick with a couple of strands of rawhide at the end of it that’s used.
But for the Mongolians, it’s a symbolic thing. Because obviously, it’s used for a horse. But for the Mongols, your destiny, yourself is your Khiimori, your wind horse that lives inside of you, your wind horse that guides you and gives you opportunities. But it’s up to you to ride that wind horse. It’s up to you to use the wind horse, not to just go wild with the wind horse. And so, I think it’s at that crucial moment. He’s on his way back home to go with Jamukha and the other soldiers to the market to rescue Börte. And so, symbolically, he found a whip there. But I think it means that he found the way to control his destiny, his fate. It’s very important, very important.
But then almost every day I meet somebody, just one person who gives you some hope. You just see somebody doing something nice or they do something nice for you. And I do find in Asia, that happens a lot, that people just do nice things for old people every day. And so, then my dissatisfaction with all the big things in the world and the way my grandchildren talk and the way young people are, and then I see something like that. And often, it’s something with the young people, something that the young people do.
And in Asia, they’re always bringing me things. They bring me dried curds. They bring me strawberries that they picked in the forest in the summer, or they bring the pine nuts that they found, or they bring me the milk in various forms or yogurt. Oh, yeah. Everybody thinks “You got to eat the yogurt. This is from my grandmother and all the other yogurt in the world is not good but my grandmother. She knows how to make the best yogurt ever and all.” And so, over and over and over, I’d find despite my all intentions to be in a bad mood, somebody spoils you with these little nice acts that are really very touching, very touching.
We could go to the opera and you had to go up this magnificent set of Soviet stairs to get to the opera. We would go and I had no worries. I knew two guys would come from one side, two guys from the other side. They would carry up and they do not say, “Excuse me. May I help you.” They do not wait for you to say thank you, nothing. They just do it and they walk away. They have such respect. Singers would come there all the time to sing, to warm up the house for my wife. And even dancers would come sometimes to dance or play the horse head fiddle, morin khuur, to play that, to warm up the house for her, to see how they treated a totally disabled person.
And if I was feeding my wife and anyone, anybody saw it, they would come and immediately take over and start feeding her in their place. Children would come up to her. In America, they’re often afraid that she’s somebody in a wheelchair. They just look, they don’t know what to do. But over there, the children would always come to her, always. They were very kind. You just learn something about the people. And living there in a country where out in the countryside, you come to a gare, you never ask for permission to go in. You certainly don’t knock on the door frame. That’s no. That’s hugely offensive.
And you ask, it’s like insulting the people like, “What? You’re not a hospital people. I have to ask you for something.” No. You walk in and you sit down and they fix food for you. It’s an incredible thing. And these are the things that give me hope. It’s no institution in the world, not the big things, and not the pop culture and not all the platitudes. Oh, my God. Save us from the platitudes of modern life.
I mean, my life is so small and narrow. But my wife, she’s the one who gave me a life. The truth is a very odd, people don’t believe sometimes, I failed English in college. I barely got in college. Nobody in my family. I’d grown up with my grandparents, mostly the countryside, and they had third grade education. My father had seventh grade. I went to live with him after the grandparents died and my mother. There was no big education there in the family. But I somehow got to college. My father told me to go. He didn’t want me to go to the war in Vietnam, so he volunteered to go because there was the rule that they couldn’t send two people from one family against their will. That was mainly designed to protect brothers, but he could go as the father and then I could go to college.
So, I got to college and I can’t say, “Oh, I was drinking and having a party and not serious.” No. I was trying like hell to pass that course. I failed English. I failed it. And this was just a huge shame to me. In fact, after one year I was put on probation to be kicked out of the school. My grades were so low, overall. And then, so it took me a long time to confess this to my wife after we met. I met her. I’d briefly had known her in high school, but just not well or anything. But anyway, we met later and I told her, and she just looked at me. She said, “What does a professor know? It’s just a professor. You can write anything you want.”
And she had the power to make me believe everything. She said, I don’t care what she said, I would believe it. I would say, “Yeah. That’s right. That’s just a professor. Yeah.” And she inspired me. But she supported me all the way through graduate school. She was taking some courses of her own and she was doing graduate work. But she inspired me. But she told me … I said, “I want to write for more people than just for other scholars. I’ve done this dissertation, a PhD, and it’s just dry as the Gobi Desert, and I didn’t know what to do.”
And she said, “Just tell the story to me, but I can’t see you while you tell it. You’re on the radio and I’m listening in my car driving somewhere. Just tell the story to me.” And to this day, almost every word I write as always just tell the story to her the way that she would like it. And I always read the books to her even she couldn’t comprehend too much, but she just loved hearing the book, because it was mine.
And in the last years of her life, I gave up the teaching and we went back to our original home in South Carolina and I said, “Okay. We’re just going to live here and watch the ocean and do things like that and just be worthless teenagers.” And my wife used to have episodes of clarity. I have no idea what would cost. It might be two hours. It might be seven or eight hours. And we would talk a lot. And so, one time she said to me, she said, “This disease is going to take my life, but it’s taking your life.” She said, “You gave up teaching and you gave up writing.” And she said, “How do you expect me to die in peace if I know that you gave up everything to this disease?”
She said, “You should write.” And so, every single day we sat together by the water, I mean by the window. I moved it into the dining room overlooking the water. We sat there at the desk and she sat in her wheelchair next to me. And sometimes we would play a little soft music in the background a little bit. And for the most part, she couldn’t talk. But she liked to just sit there beside me working. And she knew that she was inspiration. She knew. She was the battery that kept me going. How on earth I ever had a wife like that? I don’t know.
And we went back to the first night that we had in Moscow. We came in December in the winter, and the snow was so beautiful and white and the yellow lights shining on it. And then the most beautiful night we went to the Bolshoi and she had this elegant blue wool coat from her grandmother from the 1920s with a huge, so ironic, it was a blue wolf, but it’s gray blue, like the Mongol has a gray blue collar, this huge collar. She just looked like a movie star from the ’20s or something.
And we went to see Maya Plisetskaya, and it was one of the most beautiful nights. But her last night, I told her that story again, of all the details, I’d gone through it many times with her coat from her grandmother whom she loved very much, and the snow and the yellow lights, and we arrived at night because of course the flight was late. And then the next night going to the Bolshoi and all those beautiful things from Russia, that was it. She was an inspiration. I have many, many nights or many days of great memories.
And now, allow me to make a few comments on the ever-evolving moral landscape of human civilization throughout our 10,000-year history. I was listening to Dan Carlin’s excellent eye-opening five-and-a-half-hour episode of Hardcore History titled Human Resources. It covered the topic of slavery, the Atlantic slave trade to be exact. One of the lessons I took from this episode is that the long arc of history is full of atrocities, as we modern-day humans understand them with the wisdom of time and moral progress.
But during each period of history, as Dan documents, it was difficult for the majority of people to see just where the line between good and evil is. We humans, after all, forever like to weave a story in which we are the good guys. Listening to Dan discuss, and later myself, reading first-hand accounts of slaves, of torture, of rape, of separation of families is incomprehensibly heartbreaking.
By the way in this topic, first-hand accounts of slavery could be read in Slave Narratives: A Folk History of Slavery in the United States from interviews with former slaves. I can recommend the book that I’ve been reading, which is Voices from Slavery: 100 Authentic Slave Narratives. It all seems deeply and obviously wrong by today’s standards. But slavery was seen as normal through most of human history. Thomas Jefferson, the man who wrote, “All men are created equal,” which I think is one of the most powerful lines in all of human history. He himself was a slave owner, making him a fascinating case study of contradictions.
In fact, there’s evidence that Thomas Jefferson drew from Genghis Khan’s ideas about the importance of religious freedom, pulling as he did foundational ideas of human freedom from the jaws of deep history. And Dan, in his episode, documents these contradictions and complexities quite well. The full range of human psychology involved, including how violations of basic human rights breed generational hatred. This I think is an important lesson to understand.
The consequences of our moral failings can reverberate through decades, even centuries, and that is perhaps one of the values of studying history. It is laden with atrocities, but it also contains people who, while flawed, dare to rise in some way above the moral decrepitude of the day to try to build a foundation of a slightly better future world. As MLK Jr. put it, “The arc of moral universe is long, but it bends towards justice.”
And now, please allow me to say a few words about Gaza, Israel and Palestine. I’m not sure I’m eloquent enough or know quite the right words to express what I’m feeling. But let me try. I think what is happening in Gaza is an atrocity, and I think that the Israeli government is directly responsible for it. And to the degree the US government is assisting the Israeli government in this, which I believe it currently is. It needs to stop immediately. For me as an American makes me sick to know that my government has any role in this atrocity. This needs to stop.
Yes. There’s geopolitical and military complexity, nuance, and historical context that I’m told by some so-called experts that one must understand. And perhaps they are smarter than me. But like mentioned before, unlike the more complexity of deep history that I’ve often spoken about from the Roman Empire to the Atlantic slave trade, this is the 21st century. This is today. In this, the 21st century, I see things quite simply and clearly.
To me, the death of a child is a tragedy. It doesn’t matter what their skin color is, what their religion is, or what plot of land they call home. In my view, they are all equal, and the death of each child is a tragedy. Hamas did a definitively evil act on October 7th, brutally murdering over 1,000 civilians. But now, the acts of war conducted by the Israeli government have led to the death of over 60,000 people in Gaza, likely over 80,000 people, of which at least 17,000 are children, 17,000. I’m not smart enough to know the path to peace and flourishing of all the peoples in the region. But I do know that what has been happening in Gaza cannot be the way.
Suffering at this kind of scale breeds generational hate that leads to more evil in the world, not less, to more destruction, to more suffering. This has to stop. Two years ago, I spoke with many Palestinians in the West Bank on camera and off. There’s a video of it up if you want to hear their voices for yourselves. It was a deeply moving experience for me, and I’m grateful for it. In the future, I hope to find a way to talk to people in Gaza. I still think it’s valuable to talk to leaders, historians, soldiers, activists from all perspectives.
But the most powerful and moving conversations for me on mic and off have always been with everyday people. This always felt like where the truth is, the deeper truth of life, of pain, fear, of hope, and I still have hope. I believe we humans are good at the core, and I know we’ll find our way. Thank you for listening. I love you all.
Click link to jump approximately to that part in the transcript:
- 0:56 – Origin story of Genghis Khan
- 42:42 – Early battles & conquests
- 55:23 – Power
- 57:45 – Secret History
- 1:11:10 – Mongolian steppe
- 1:14:27 – Mounted archery and horse-riding
- 1:22:48 – Genghis Khan’s army
- 1:39:00 – Military tactics and strategy
- 1:51:24 – Wars of conquest
- 1:55:48 – Dan Carlin
- 2:05:49 – Religious freedom
- 2:21:36 – Trade and the Silk Road
- 2:30:21 – Weapons innovation
- 2:31:52 – Kublai Khan and conquering China
- 3:13:43 – Fall of the Mongol Empire
- 3:40:38 – Genetic legacy
- 3:50:32 – Lessons from Genghis Khan
- 4:00:48 – Human nature
- 4:03:58 – Visiting Mongolia
- 4:23:27 – Lex: Dan Carlin
- 4:26:17 – Lex: Gaza
Lex Fridman
The following is a conversation with Jack Weatherford, anthropologist and historian specializing in Genghis Khan and the Mongol Empire. He has written a legendary book on his topic titled Genghis Khan and the Making of the Modern World, and he has written many other books, including Emperor of the Seas: Kublai Khan and the Making of China, Genghis Khan and the Quest for God, The Secret History of the Mongol Queens and other excellent books. I’ve gotten to know Jack more after this conversation and I cannot speak highly enough about him. He’s a truly brilliant, thoughtful, and kind soul. This was a huge honor and pleasure for me. This is the Lex Fridman podcast. To support it, please check out our sponsors in the description and consider subscribing to this channel. And now, dear friends, here’s Jack Weatherford.
The following is a conversation with Jack Weatherford, anthropologist and historian specializing in Genghis Khan and the Mongol Empire. He has written a legendary book on his topic titled Genghis Khan and the Making of the Modern World, and he has written many other books, including Emperor of the Seas: Kublai Khan and the Making of China, Genghis Khan and the Quest for God, The Secret History of the Mongol Queens and other excellent books. I’ve gotten to know Jack more after this conversation and I cannot speak highly enough about him. He’s a truly brilliant, thoughtful, and kind soul. This was a huge honor and pleasure for me. This is the Lex Fridman podcast. To support it, please check out our sponsors in the description and consider subscribing to this channel. And now, dear friends, here’s Jack Weatherford.
Origin story of Genghis Khan
Lex Fridman
Genghis Khan, born in approximately 1162, became the conqueror of the largest contiguous empire in history. But before that, he was a boy named Temüjin, who at nine years old, lost everything. His father, his tribe, living in poverty, abandoned to the harshness of the Mongolian steppe. From a boy with nothing to the conqueror of the world. So tell me about this boy, his childhood and the Mongolian steppe from which he came from.
Genghis Khan, born in approximately 1162, became the conqueror of the largest contiguous empire in history. But before that, he was a boy named Temüjin, who at nine years old, lost everything. His father, his tribe, living in poverty, abandoned to the harshness of the Mongolian steppe. From a boy with nothing to the conqueror of the world. So tell me about this boy, his childhood and the Mongolian steppe from which he came from.
Jack Weatherford
The story of Genghis Khan, like the story I think of all of us, it doesn’t begin at birth, it begins… That’s the beginning of life. The story begins long before birth, and sometimes it can be many generations before and sometimes only shortly before. But I think with Genghis Khan, a crucial thing is to understand how his parents met and then how he was conceived. And that is that one day a cart was coming across the Mongol territory and only women drove carts. Men rode horses, women also rode horses, but women owned the houses which were called gers, the tents. They owned all the household equipment, and so they had to have carts for moving back and forth. And the fact that a cart was moving meant that some woman was moving from one place to another. And in fact, her husband was with her. She was a new bride and her husband was on a horse close to her.
The story of Genghis Khan, like the story I think of all of us, it doesn’t begin at birth, it begins… That’s the beginning of life. The story begins long before birth, and sometimes it can be many generations before and sometimes only shortly before. But I think with Genghis Khan, a crucial thing is to understand how his parents met and then how he was conceived. And that is that one day a cart was coming across the Mongol territory and only women drove carts. Men rode horses, women also rode horses, but women owned the houses which were called gers, the tents. They owned all the household equipment, and so they had to have carts for moving back and forth. And the fact that a cart was moving meant that some woman was moving from one place to another. And in fact, her husband was with her. She was a new bride and her husband was on a horse close to her.
So what happened was a man named Yesügei… Yesügei, the future father of Genghis Khan. Yesügei was up on a hill. He was hunting with his falcon. The words of the Secret History of the Mongols were very clear, and he looked down and he saw her and he could barely glimpse her, but he knew she was young and she was a new bride. And he rode back to camp. He got his two brothers and they came racing down and they came… And first the husband of the woman looked around and he decided to flee, not because he was a coward, but he figured he would probably pull the men after him. They would chase him. And they did. They chased him. He went far away. He circled around. He came back. He arrived back at the cart where his wife was. Her name was Hö’elün. And Hö’elün had time to think while he was riding around being chased by the Mongols.
And she decided that it’s more important for him to live. And she told him when he came back, “You must flee. If you stay here, they will kill you and they will take me. But if you flee, they will take me, but you will have the chance to find another wife. There are many women in the world. You find one and you call her Hö’elün after my name, and you remember me when you’re with her.” It’s a very dramatic moment. And he rode away and he looked back and forth, and it said that the pigtails or the braids that were hanging down were whipping back and forth from his chest to his back. He was divided, obviously, whether he should go or stay. But the three men were approaching again and they were headed straight for the cart this time. And they came in and they took Hö’elün.
She didn’t say a word until her husband was over the ridge. And when he was over the ridge and she could no longer see him, she began to scream and wail. And one of the brothers said to her, “It doesn’t matter if you shake the waters out of the river and if you shake the mountains with your screaming, you will never see this man again.” And he was right. That was the moment that Genghis Khan’s mother and father met. That’s the beginning of his story in this kidnapping. And it’s going to reverberate every detail of it. We’ll come back again and again, not only throughout the story of the life of Genghis Khan, but it’s going to continue on with the feuds and the issues caused by it all the way into the future. And to some extent in certain parts of the world, you could say it still exists.
Lex Fridman
So the meeting is fundamentally sort of a mixture of heartbreak and dark criminal type of kidnapping?
So the meeting is fundamentally sort of a mixture of heartbreak and dark criminal type of kidnapping?
Jack Weatherford
Yes.
Yes.
Lex Fridman
And from that is conceived this conqueror of the biggest contiguous empire in history.
And from that is conceived this conqueror of the biggest contiguous empire in history.
Jack Weatherford
What I was really interested in was how did this happen? Who was this person? As Wordsworth wrote in his poem, “The child is father of the man, and it’s the childhood that created him.” And it’s that episode that was before he was born, but all the things that happened throughout his childhood made him into the man that he became. And so he was now, suddenly this unusual situation was created where a child is going to be born to a kidnapped woman who’s being held by strange people, the Mongols. They were not her people. And he already had another wife, her husband, he had a wife named Sochigel. He had at that time already one son, later he had another son with her. It was a very odd situation. And in fact, the father, Yesügei wasn’t even there when Temüjin was born. He was off fighting the Tatars.
What I was really interested in was how did this happen? Who was this person? As Wordsworth wrote in his poem, “The child is father of the man, and it’s the childhood that created him.” And it’s that episode that was before he was born, but all the things that happened throughout his childhood made him into the man that he became. And so he was now, suddenly this unusual situation was created where a child is going to be born to a kidnapped woman who’s being held by strange people, the Mongols. They were not her people. And he already had another wife, her husband, he had a wife named Sochigel. He had at that time already one son, later he had another son with her. It was a very odd situation. And in fact, the father, Yesügei wasn’t even there when Temüjin was born. He was off fighting the Tatars.
And during this campaign against the Tatars, he killed two Tatars. One of them was named Temujin-üge, which is sort of person of iron is what it means from the Turkic. But today a part of also Mongolian language. So he came back, he had a baby, and he decided to name him Temüjin, the person of iron or iron-man, we might call him.
Lex Fridman
After the man he killed.
After the man he killed.
Jack Weatherford
After the man he killed. So he has a kidnapped mother, she’s a second wife now, not a legal wife, but just a second kidnapped wife. And he’s named for someone his father just killed. It was not an auspicious beginning. And in fact, just episode after episode in his childhood was inauspicious. The father and mother moved camp one time when he was quite young and somehow they overlooked him and forgot him. He was left behind. So here’s this young child, we don’t know what age, but it could have been around four or five, I think. He was left behind. And as it turned out, some other people, the Taichiud found him and then they kept him for a while, and eventually he was reunited with his father and mother.
After the man he killed. So he has a kidnapped mother, she’s a second wife now, not a legal wife, but just a second kidnapped wife. And he’s named for someone his father just killed. It was not an auspicious beginning. And in fact, just episode after episode in his childhood was inauspicious. The father and mother moved camp one time when he was quite young and somehow they overlooked him and forgot him. He was left behind. So here’s this young child, we don’t know what age, but it could have been around four or five, I think. He was left behind. And as it turned out, some other people, the Taichiud found him and then they kept him for a while, and eventually he was reunited with his father and mother.
And it’s very odd to me that I never have any inkling of a spark of relationship much between the father and the son because then when Temüjin is eight years old, his father decides to take him off to find a wife, which finding a wife in the Mongolian terms means you give the child to that family or you give the boy to that family and he will live with them and they will raise him up and they will train him the way they want before he can marry their daughter. And so he’s taking him off at age eight, but he didn’t take the other son from the other wife, Behter. He was keeping him. There was something about Temüjin having been lost once and found by the Taichiud and reunited with the family.
And now his father takes him off at age eight and he was going to take him to Hö’elün’s family, but he never made it. He stopped with another family. It’s like the first family he came across. And in the words of the Secret History, it sort of like instant love that there was fire in his eyes and fire in her eyes. And he saw this girl Börte, who was about nine years old, a little older, and he wanted to stay there with that family according to the story. And so the father left him there with that family. But on the way home, the father, he saw a drinking party and he decided to join them. They were Tatars. He hid his identity. On the steppe, everybody kind of figures out who everybody is. They figured out who he was. And supposedly they poisoned him. He got on his horse and was able to ride back home. But within a few days he died.
So now Temüjin is off living with another family, and somebody comes from his family, a family, not a relative, but a close person named Münglig comes to get him, take him back, and they make it through the winter. They make it through the winter. Mother Hö’elün, by now she has four sons and one daughter. I think the daughter had already been born or the daughter was going to be born not too long after that, but they make it through the winter. The spring comes and of course the clan is going to move to a new camp. They go to spring camp from winter camp. And they have a ceremony for the ancestors. And they started the ceremony, but they did not tell Hö’elün. And so she came and she was angry that she had been left out. And the old women said, “You’re the one for whom we do not have to call. We will feed you if you come, but we do not have to take care of you.”
Letting her know that as a captive woman, she was not a real wife in their view. And that was really the signal that when they moved camp, they were not taking her with them. And they packed up and they took her animals. They took the animals. But at that moment, she still had one horse for a moment, and she jumped on the horse and she took the banner of her husband and she raced around the people. And the banner after death contains the soul of the person, [foreign language 00:11:29] it’s called. And so she raced around and they were a little bit nervous. And so they camped for one night and they waited until it was dark, then they took off. And this time one of the friends of the family came running out to try to stop them and they killed him.
And Temüjin cried. He was a little boy, eight years old. There was nothing he could do. He’s just a little boy. And now that family is left there on the steppe, four children, possibly five already. Sochigel, the other woman with two children. They’re all left there to die on the steppe. When the winter comes, they will surely all die.
Lex Fridman
How do they make it through the winter?
How do they make it through the winter?
Jack Weatherford
Mother Hö’elün, in the words of the Secret History, she pulled her hat down over her head. She took her black stick and she ran up and down the banks of the river digging out roots to feed the gullet of her brood. She fed them through the winter. She found foods digging up whatever she could, finding whatever she could, everything she could. And even at this young age, Temüjin was already beginning to go out to collect things. He could get fish, he could do a few tasks to help feed the family. It was an extremely awful struggle at this point, but she saved every one of the children.
Mother Hö’elün, in the words of the Secret History, she pulled her hat down over her head. She took her black stick and she ran up and down the banks of the river digging out roots to feed the gullet of her brood. She fed them through the winter. She found foods digging up whatever she could, finding whatever she could, everything she could. And even at this young age, Temüjin was already beginning to go out to collect things. He could get fish, he could do a few tasks to help feed the family. It was an extremely awful struggle at this point, but she saved every one of the children.
Lex Fridman
So Temüjin’s early years were marked by loneliness, abandonment and struggle?
So Temüjin’s early years were marked by loneliness, abandonment and struggle?
Jack Weatherford
Yes. Even after this, he was kidnapped at one point by Taichiud people. He was kidnapped and we would say, I think the correct word, enslaved. They put him into a cangue, a yoke like a ox would wear. And so his two arms are in it and his head is in it, and he’s trapped in this thing. And every night he would be taken to a different ger to be guarded by that family. And one night there was a little celebration. So most of the people are drinking and he’s left with a boy who’s not very smart. Temüjin managed to take the cangue, the wooden yoke that he’s trapped in and use it as a weapon by turning it around very quickly and hitting the boy in the head, knocking him out. That was one of the first lessons for the Mongols, that anything that moves is a weapon.
Yes. Even after this, he was kidnapped at one point by Taichiud people. He was kidnapped and we would say, I think the correct word, enslaved. They put him into a cangue, a yoke like a ox would wear. And so his two arms are in it and his head is in it, and he’s trapped in this thing. And every night he would be taken to a different ger to be guarded by that family. And one night there was a little celebration. So most of the people are drinking and he’s left with a boy who’s not very smart. Temüjin managed to take the cangue, the wooden yoke that he’s trapped in and use it as a weapon by turning it around very quickly and hitting the boy in the head, knocking him out. That was one of the first lessons for the Mongols, that anything that moves is a weapon.
This is going to go on for generations. Very important for the Mongols. If it moves, it’s a weapon. He did that. He raced off in the night and he jumped into the river to hide. He still got a cangue on him. He’s still trapped under there. The people are looking for him. They come out and they’re up and down the river and he’s hiding underneath the water for the most part, trying to breathe as best he can, but it’s dark and it protects him a little bit. They give up and they say, “Okay, we’ll come back tomorrow. He can’t possibly escape.” But the next day, he knew one family that he thought he could go to, and he was right. He went to that family and a great risk to themselves. They in fact were a captive family of the Taichiud and at great risk to themselves, they managed to saw off the cangue and then burn it in their fire, and they gave him food to escape, and then he had to go find his family again. So this is the kind of life that this boy Temüjin had.
Lex Fridman
So he, just to be clear, the neck is trapped and the hands are trapped?
So he, just to be clear, the neck is trapped and the hands are trapped?
Jack Weatherford
We think that’s how it is. We just have the word. They don’t say the head and the hands. We know that his body is trapped in it, but from all evidence we have, it’s the hands and the head.
We think that’s how it is. We just have the word. They don’t say the head and the hands. We know that his body is trapped in it, but from all evidence we have, it’s the hands and the head.
Lex Fridman
And he is running around deeply alone with this thing?
And he is running around deeply alone with this thing?
Jack Weatherford
Yes. And then he has to go out and find wherever his family is.
Yes. And then he has to go out and find wherever his family is.
Lex Fridman
So this in part was the foundation of his breaking with Mongol tradition, that kinship is the most important thing above all else. Because here’s his life story where he’s abandoned over and over and over.
So this in part was the foundation of his breaking with Mongol tradition, that kinship is the most important thing above all else. Because here’s his life story where he’s abandoned over and over and over.
Jack Weatherford
Yes, by his father’s own brothers. See, the men who kidnapped her, they had an obligation under the Mongol law and custom to marry her when her husband died. They did not. They should take care of her and her children because her children or the children of their brother, they count as the sons of the clan, or they should. But no, they had all deserted him, all betrayed him. He learned very early on that you cannot trust family.
Yes, by his father’s own brothers. See, the men who kidnapped her, they had an obligation under the Mongol law and custom to marry her when her husband died. They did not. They should take care of her and her children because her children or the children of their brother, they count as the sons of the clan, or they should. But no, they had all deserted him, all betrayed him. He learned very early on that you cannot trust family.
Lex Fridman
You mentioned that Genghis Khan’s childhood, Temüjin was marked by extreme tribal violence. Can you describe sort of the state of affairs in the steppe? How much violence is there? How much kidnapping is there?
You mentioned that Genghis Khan’s childhood, Temüjin was marked by extreme tribal violence. Can you describe sort of the state of affairs in the steppe? How much violence is there? How much kidnapping is there?
Jack Weatherford
The story of Temüjin is not a unique story for that time. Now, as an isolated family of outcasts, of course he’s not participating in the various feuds and the raids of the people around them, but they are constantly raiding in the winter and for women and for horses and for any kind of valuables that they can find. It’s almost like their way of getting trade goods from China. That one group raids the other in order to find out whatever they have for textiles or for metal.
The story of Temüjin is not a unique story for that time. Now, as an isolated family of outcasts, of course he’s not participating in the various feuds and the raids of the people around them, but they are constantly raiding in the winter and for women and for horses and for any kind of valuables that they can find. It’s almost like their way of getting trade goods from China. That one group raids the other in order to find out whatever they have for textiles or for metal.
Mongols produced nothing. They could produce felt to make their tents, but they were not craftsmen. And so they had to get these items from somewhere, and it was through raiding. Even in the genealogy of Temüjin, you see going back generation after generation of women having been kidnapped, children born who are not necessarily the father’s child, and it’s unclear who the father was, and all of these issues go back for a long time. Later, Genghis Khan will realize once he becomes Chinggis Khan, he will realize that the true source of most of the feuding on the steppe is over women. And later he will outlaw the kidnapping of women and the sale of women, in part not only because of what had happened to his mother, but what happened to him next in his life.
Lex Fridman
And this is one of the things you talk about, this in some ways, the love story with his wife was her kidnapping, was the defining… If you could point to one place where Genghis Khan the conqueror was created, it’s that point, his wife being kidnapped. Can you describe, first of all, his love for this woman and what that means and what the kidnapping of her meant?
And this is one of the things you talk about, this in some ways, the love story with his wife was her kidnapping, was the defining… If you could point to one place where Genghis Khan the conqueror was created, it’s that point, his wife being kidnapped. Can you describe, first of all, his love for this woman and what that means and what the kidnapping of her meant?
Jack Weatherford
At age 16, Börte, the girl he had met when he was eight years old as she was nine, she’s now 17, and she and her mother come. It’s hard to even imagine what it was like for this 16-year-old boy who has suffered these indignities of life in every way that you can imagine. And suddenly, here is the love of his life, who’s going to be living with him, making him happy. He has somebody who loves him. It’s not just his mother running around getting food and trying to feed the five children and plus the other wife and her two children. No, he has somebody who loves him.
At age 16, Börte, the girl he had met when he was eight years old as she was nine, she’s now 17, and she and her mother come. It’s hard to even imagine what it was like for this 16-year-old boy who has suffered these indignities of life in every way that you can imagine. And suddenly, here is the love of his life, who’s going to be living with him, making him happy. He has somebody who loves him. It’s not just his mother running around getting food and trying to feed the five children and plus the other wife and her two children. No, he has somebody who loves him.
It’s all the excitement that you can imagine with the fire in the eyes and the excitement. And then it only lasts a few months. So there they are… And there’s a lady visiting them. We don’t know exactly who she is, but just they called her grandmother, [foreign language 00:19:50]. Granny [foreign language 00:19:51] is there. Granny [foreign language 00:19:52] is sleeping, of course, on the floor of the ger, the tent. And early in the morning, she feels the vibrations in the earth, and she knows that horsemen are coming. She rouses the family. And mother Hö’elün is in charge. Mother Hö’elün is still in charge even though Temüjin is now married. She puts all of her children on a horse. She takes the baby girl Temülün in her own lap. She has one extra horse, but she won’t take Börte because she knows…
She doesn’t know who the men are. She has no idea. But they’re coming. They’re coming in the dark. They’re coming for a woman. They know there’s a girl there. This family of outcasts has acquired a wife, and they know that they’re coming for that. And so she leaves Sochigel, the other wife, she leaves this old lady, granny [foreign language 00:20:51], who actually has her own cart, and she leaves Börte. They pile into granny’s cart, and it’s only an ox to pull it so they don’t get too far before the attackers get there. But mother Hö’elün is right. She’s able to get her children off to the mountain, into [foreign language 00:21:09], to the mountain side away from them because the men are so focused on this cart and finding out how many women are in there and who they are and all. So mother Hö’elün saved her family, but at a cost.
Suddenly Temüjin realizes he has obeyed his mother, but he’s lost the most important thing in his life. And I do think this is the defining moment of his life. The story began back when his mother was kidnapped, but now the kidnapping of his wife and [inaudible 00:21:46] what will he do? What should he do? What can he do? Is he going to just resign himself to it? Is he going to go out and look for another wife? And he decides that life is not worth living without Börte. He has found something good in this life. And if he has to die trying to get her back, he will die trying to get her back.
Lex Fridman
And this is the early steps of the military genius born, because in order to get her back requires an actual organization of troops.
And this is the early steps of the military genius born, because in order to get her back requires an actual organization of troops.
Jack Weatherford
He needs allies.
He needs allies.
Lex Fridman
Allies.
Allies.
Jack Weatherford
He goes to a man who ruled the Khiyad people in Central Mongolia, the Tuul River, about where the capital Ulaanbaatar is today. He goes there because that Wang Khan is his name or Toghrul khan. He goes there because Wang khan had been the Lord over his father at one point, and his father had gone on raids for him. And so he went there and actually he took a gift, that’s because Börte’s mother had brought a sable coat as a gift for mother Hö’elün at that time of the marriage. So he took the coat and he took it and he gave it as a gift to Wang Khan and asked for his help. And Wang Khan said, “Yes.” He said, “I’ll send some troops, but we need more. And you need to ask Jamukha. You need to ask him to come also.” He said, “I will send a message to him to get troops.”
He goes to a man who ruled the Khiyad people in Central Mongolia, the Tuul River, about where the capital Ulaanbaatar is today. He goes there because that Wang Khan is his name or Toghrul khan. He goes there because Wang khan had been the Lord over his father at one point, and his father had gone on raids for him. And so he went there and actually he took a gift, that’s because Börte’s mother had brought a sable coat as a gift for mother Hö’elün at that time of the marriage. So he took the coat and he took it and he gave it as a gift to Wang Khan and asked for his help. And Wang Khan said, “Yes.” He said, “I’ll send some troops, but we need more. And you need to ask Jamukha. You need to ask him to come also.” He said, “I will send a message to him to get troops.”
Lex Fridman
You have to tell the story of Jamukha. Because the story of Genghis Khan is one of people abandoning him, being disloyal. And here is a person who’s not of his kin, but becomes his, in a way, brother, in a way, loyal. And as you’ve described, he’s both the best thing to have happened to Genghis Khan and one of the biggest challenges in the later years to Genghis Khan. So who was Jamukha?
You have to tell the story of Jamukha. Because the story of Genghis Khan is one of people abandoning him, being disloyal. And here is a person who’s not of his kin, but becomes his, in a way, brother, in a way, loyal. And as you’ve described, he’s both the best thing to have happened to Genghis Khan and one of the biggest challenges in the later years to Genghis Khan. So who was Jamukha?
Jack Weatherford
Jamukha was a boy about the same age as Temüjin. And his family had winter camp close to where mother Hö’elün was living with her children. And so the two boys met during the winter time. In fact, they both claimed descent from the same woman about four generations earlier, or five. It’s a little unclear. She was a Uriankhai woman who herself was kidnapped, and actually Jamukha was the descendant of her from the fact that she was pregnant at the moment of kidnapping. And then Temüjin is descended from her through the new kidnapper, [foreign language 00:24:38], his ancestor. So they’re both through, as the Mongols would say, from the same womb. They come from the same historic origin. However, their lives were similar and they both lost their fathers very early. But Jamukha also lost a mother. So he grew up in the household of his grandfather. He had no siblings, unlike Temüjin with a whole house full of siblings. He grew up with his grandfather and his grandfather had several wives.
Jamukha was a boy about the same age as Temüjin. And his family had winter camp close to where mother Hö’elün was living with her children. And so the two boys met during the winter time. In fact, they both claimed descent from the same woman about four generations earlier, or five. It’s a little unclear. She was a Uriankhai woman who herself was kidnapped, and actually Jamukha was the descendant of her from the fact that she was pregnant at the moment of kidnapping. And then Temüjin is descended from her through the new kidnapper, [foreign language 00:24:38], his ancestor. So they’re both through, as the Mongols would say, from the same womb. They come from the same historic origin. However, their lives were similar and they both lost their fathers very early. But Jamukha also lost a mother. So he grew up in the household of his grandfather. He had no siblings, unlike Temüjin with a whole house full of siblings. He grew up with his grandfather and his grandfather had several wives.
So he grew up with a bunch of old women, which later he said he thought was an influence on his life. But the two boys meet. So they come from different backgrounds. And Jamukha is not as deprived by any means as the life of Temüjin, but he has a certain emotional deprivation I think, having not had mother, father, siblings, and he lives with these old people. The two boys meet, they become good friends playing on the ice. And so they’re playing on the ice. And then very early on, I think when they’re about 10 or 11 years old, they decide to make a pact. It’s called becoming anda. Anda is more than a friend. A friend is like [foreign language 00:25:49] in the language. And there are several different types of friendship, but anda is a friendship that’s beyond a friendship. It’s something for life. And they swore that they would be there forever to protect each other, to help each other in every moment.
And they exchanged knucklebones. So each one of them had the knuckle bone of a roebuck, a deer, a knuckle bones are used in these games that they play, but it’s also used to forecast the future. You can roll them around and all. And it’s very strange, on the ice, I will say in the wintertime in Mongolia, it can be up to 50 degrees below zero. And it doesn’t really matter at that point, whether it’s even Celsius or Fahrenheit or what it is. But you slide something across the ice and it’s just absolutely smooth like silk, and it goes on for a long way. And if you put your ear down to the ice, you hear this celestial sound that is unlike any sound on the earth. It’s just like the angels are singing under the ice. So once they’ve sworn this relationship of anda, then a couple years later they swear it again, but this time they’re slightly older boys and they have bows and arrows, and so they exchange arrows with each other.
In fact, the text is very specific that Jamukha took the horn, cut it off of a 2-year-old calf, and he whittled it down. And then he drilled a hole into it in order to make a whistling arrow, which is used for several purposes among the Mongols. It’s used for signals for one thing, from one person to another. But also when you’re hunting, if you want to move the animal in a certain direction, you send a whistling arrow in the opposite direction to make the animal move. So it had a lot of uses. So the boys had exchanged roebuck knuckles, this time they exchanged… And so they had been close friends. And Wang Khan said, “Okay, Jamukha should raise some troops and go with you.” And he did.
So the three set out. Some troops from Wang Khan. He himself did not go. He was too old, but he sent some troops and then Jamukha and his troops, and then basically just Temüjin and his family, he just had his brothers. That’s all. They set off to find the Merkit people up the Selenga River, which flows into Siberia and on into Lake Baikal. They had to go through some extremely rough territory. And you see in this episode though, Jamukha is already a little bit fierce without necessarily thinking it through carefully. He gives this long speech about all the things they’re going to do to the Merkit people. “We’re going to jump to the [inaudible 00:28:40], the smoke hole in the top of the ger. We’re going to jump in there and we’re going to kill them all. We’re going to kill the men and the women and the children. We will destroy these people forever.”
He has an extremely militant rhetoric at least. And he’s also rather critical of the other people. Wang Khan’s people came late and he gave them this long lecture about, “We are Mongols, and if we give our word, our word is our promise, forever. And rain or sleet or snow, it doesn’t matter. We be there on time.” So he’s dressing down his superiors. He is very aggressive, but he’s very helpful. So these troops, they move in on the Merkit camp. They also come in at night. And so there’s a small amount of warning because some men are out hunting sables, the Merkit men, and they race back to the camp and they tell the people, and the people are getting ready to get out as fast as possible. So Börte has no idea who’s coming. She doesn’t want to be kidnapped again, it’s just somebody.
So she and the grandmother [foreign language 00:29:52], and Sochigel, they’re loaded into a cart to go away. So Temüjin comes in. And there’s a full moon that night, so they could see what they’re doing, and he’s really searching for her. He’s not paying too much attention to the battle. And he’s calling for her, and she hears his voice. She knows who it is. She jumps off the cart and she runs to him and they reunited and he grabs her, embraces her, and then he said, “This is the goal. This is why we are here. We don’t need anything else.” He was very clear about that.
Lex Fridman
And that was his first full on military engagement?
And that was his first full on military engagement?
Jack Weatherford
Yes, aside from the things… Yes, his first full on military engagement. Now, along the way, in addition to escaping all these horrors, he had killed his older half brother, Behter.
Yes, aside from the things… Yes, his first full on military engagement. Now, along the way, in addition to escaping all these horrors, he had killed his older half brother, Behter.
Lex Fridman
And that too was a deeply formative experience. So what was that about? Can you explain in Mongol society, the role of the older brother and the power struggle there, and not to moralize, but there’s also the ethical foundation behind the murder?
And that too was a deeply formative experience. So what was that about? Can you explain in Mongol society, the role of the older brother and the power struggle there, and not to moralize, but there’s also the ethical foundation behind the murder?
Jack Weatherford
The killing of Behter, that’s one of the things that’s totally unknown outside of the Secret History of the Mongols, none of the Persian Chronicles, none of the Chinese Chronicles, none of them knew about this until the Secret History was deciphered and translated. But Behter was the older child of Sochigel. The older brother has complete authority over the younger siblings in Mongolian society, they have to refer to him with a special pronoun all the time, ta. And he refers to them as chi. It’s like a formality. And his word goes. He’s the father in the absence of the father. But also it’s quite common that if a man dies and he has no brothers, or his brothers do not marry his widow, then if he has a son by another wife, she will become his wife.
The killing of Behter, that’s one of the things that’s totally unknown outside of the Secret History of the Mongols, none of the Persian Chronicles, none of the Chinese Chronicles, none of them knew about this until the Secret History was deciphered and translated. But Behter was the older child of Sochigel. The older brother has complete authority over the younger siblings in Mongolian society, they have to refer to him with a special pronoun all the time, ta. And he refers to them as chi. It’s like a formality. And his word goes. He’s the father in the absence of the father. But also it’s quite common that if a man dies and he has no brothers, or his brothers do not marry his widow, then if he has a son by another wife, she will become his wife.
So it would’ve been common that Behter eventually, when he passed through puberty, would then perhaps marry mother Hö’elün. Now, I don’t know that that happened, but I think either it did or Temüjin was trying to prevent it, because it was bad enough that he was the older brother, but he comes the older brother and the stepfather. I think Temüjin just couldn’t handle that. And he was already, Behter was ordering around. So he would take things like a fish or bird that Temüjin had caught, and that’s perfectly acceptable in the Mongol hierarchy.
Lex Fridman
So Temüjin would catch a fish and Behter would take the fish?
So Temüjin would catch a fish and Behter would take the fish?
Jack Weatherford
Yes, it’s only recorded once, but perhaps it happened several times.
Yes, it’s only recorded once, but perhaps it happened several times.
Lex Fridman
So that’s an okay thing to do for an older brother, just take stuff?
So that’s an okay thing to do for an older brother, just take stuff?
Jack Weatherford
Yes, he can do anything he wants just about with his younger siblings. But Temüjin is not going to stand for it. Mostly in the record, they kind of put the blame on this fish, which I’m not so sure that’s really the blame. And the boys had actually taken the sewing needles from their mother. They were using them for fishing… I think it was more complicated than that. But for whatever reason, he and his next brother Qasar decided to kill him, and they did.
Yes, he can do anything he wants just about with his younger siblings. But Temüjin is not going to stand for it. Mostly in the record, they kind of put the blame on this fish, which I’m not so sure that’s really the blame. And the boys had actually taken the sewing needles from their mother. They were using them for fishing… I think it was more complicated than that. But for whatever reason, he and his next brother Qasar decided to kill him, and they did.
Lex Fridman
Why to you, is it more complicated than that? It feels to me like stealing of a fish is like the final straw. Here he’s being abused over and over and over, and the fish is a symbol of that. And so here he takes matters into his own hands.
Why to you, is it more complicated than that? It feels to me like stealing of a fish is like the final straw. Here he’s being abused over and over and over, and the fish is a symbol of that. And so here he takes matters into his own hands.
Jack Weatherford
I think it is the symbol of that, and it can be the thing that pushes him over the edge, but it’s all these other tensions of what’s going on…
I think it is the symbol of that, and it can be the thing that pushes him over the edge, but it’s all these other tensions of what’s going on…
Jack Weatherford
… over the edge, but it’s all these other tensions of what’s going on with the family. Because they shoot him with arrows, they kill him, but what happens afterwards is also interesting for the dynamics of what was going on before. Because we hear nothing from Sochigel. She and her younger son Belgutei, they stay with the family. They don’t go away.
… over the edge, but it’s all these other tensions of what’s going on with the family. Because they shoot him with arrows, they kill him, but what happens afterwards is also interesting for the dynamics of what was going on before. Because we hear nothing from Sochigel. She and her younger son Belgutei, they stay with the family. They don’t go away.
But the one who is outraged is mother Hö’elün, his mother. She screams and hollers at him in the longest kind of tirade you can imagine. About, “You’ll never have anybody in your life except your own shadow, and you are worse than”… Everything that she could name that could be worse than. She was outraged and went on, and on, and on about it.
So, she was obviously extremely distressed about it. Whereas Sochigel, the mother of the boy, she may have been distressed, I don’t know, but nothing has shown up in the record. So, he does have this episode of having killed off his brother. But I don’t think it was a deeply meaningful, I think it was important, but I don’t think it was a mostly deeply meaningful for Temüjin. The brother was gone, the problem was solved, mother is extremely ticked off at him but…
Lex Fridman
But it does show… In fact, it’s interesting if it’s not a big deal for him. It does show that he’s willing to resort to murder to take care of a bad situation.
But it does show… In fact, it’s interesting if it’s not a big deal for him. It does show that he’s willing to resort to murder to take care of a bad situation.
Jack Weatherford
Yes, he is capable of doing anything that needs to be done to resolve what he sees as a problem. Bekhter was a problem, he resolved it at a very young age. So, he’d had that experience behind him. But now Bekhter’s younger brother Belgutei is on the raid with him and with Jamukha when they go to capture Börte back. So, he has both loyalty, and Belgutei stays loyal to him his entire life, his entire life. It was very interesting.
Yes, he is capable of doing anything that needs to be done to resolve what he sees as a problem. Bekhter was a problem, he resolved it at a very young age. So, he’d had that experience behind him. But now Bekhter’s younger brother Belgutei is on the raid with him and with Jamukha when they go to capture Börte back. So, he has both loyalty, and Belgutei stays loyal to him his entire life, his entire life. It was very interesting.
Lex Fridman
So, actually if we return to Börte, is it normal to have such a love story across many years when you’re separated, and sort of having that kind of loyalty? Because it was two-way loyalty from Börte to Temüjin and Temüjin to Börte, and this is like before he was Chinggis Khan.
So, actually if we return to Börte, is it normal to have such a love story across many years when you’re separated, and sort of having that kind of loyalty? Because it was two-way loyalty from Börte to Temüjin and Temüjin to Börte, and this is like before he was Chinggis Khan.
Jack Weatherford
I think as children, he was too preoccupied with staying alive and trying to find fish and roots to eat and things like that, to really be pining for her all the time. But for whatever reason, she came. And it could be that her family liked him in some way, or that she remembered him, or that she had no other suitors because at 17 she should have been married actually.
I think as children, he was too preoccupied with staying alive and trying to find fish and roots to eat and things like that, to really be pining for her all the time. But for whatever reason, she came. And it could be that her family liked him in some way, or that she remembered him, or that she had no other suitors because at 17 she should have been married actually.
So, I can’t explain why, but it was certainly a strong love story after the fact, if not before. I mean those two were loyal to each other throughout their lives. Or she was, I would say, the most important person to him after that.
Lex Fridman
He went to literal war to get her back.
He went to literal war to get her back.
Jack Weatherford
He risked everything, he was willing to die. He was willing to kill, he was willing to die in order to get her back. And he got her back, and now he’s reestablished his relationship with Jamukha. And so they decide to stay together and they all go off to the Olkhonud Valley. And she is pregnant, this becomes a huge issue forever.
He risked everything, he was willing to die. He was willing to kill, he was willing to die in order to get her back. And he got her back, and now he’s reestablished his relationship with Jamukha. And so they decide to stay together and they all go off to the Olkhonud Valley. And she is pregnant, this becomes a huge issue forever.
It’s one of those things that to this day almost, it’s an issue and what happens. But as he says much later in life, when his own sons rebel against him, and they call that first child a Merkit bastard, he defends his wife viciously to his own sons. He says, “You were not there. You do not know who loved who and who did not. You did not see the sky turning around. You did not see the stars falling. You did not see the earth turn over. You don’t know what was happening. And if I say he is my son, he is my son. Who are you to say otherwise, you were not there. You come from the same warm womb, and if your mother could hear your words, her warm womb would turn to cold stone.”
So, he defended her forever. But he’s off now… We go back to the beginning. She’s pregnant, they are in the Olkhonud Valley, and he Jamukha decide to renew their vows of being anda to each other. So, this time it’s more serious and it’s a ceremony in front of the whole… We can’t say tribe, it’s not big enough yet for a tribe, but a whole clan that’s there.
And then Jamukha takes off a gold belt, which actually he had stolen from the Merkit at some point. And where on earth they got a gold belt? I don’t know where. He took off a gold belt and he put it on Temüjin. And then Temüjin gave him a mare who had never had a foal that had never given birth. And it was an unusual mare who had a little growth on the front of her head, which they called a horn.
So, it was an unusual gift and don’t… It has meaning, but I don’t know all the meanings behind it. It’s sort of odd to me. But the golden belt I didn’t think about it in different ways. But the belt for the Mongol man is really the sign of manhood. And in fact, just a belt, büse, a woman was often then and even now called a person without a belt because that’s how they were at that time.
Today, women wear belts, of course. But they still use the word busgui, busgui with no belt. So, it’s a very important symbol of manhood. So, he gave that to Temüjin and they celebrated. And then the word told a secret history. They slept apart under the same blanket, apart from the other group, and they were happy together. And then when the baby was born to Temüjin named the baby Jochi, which means visitor.
And some people say, “Well, it’s because the child was really the Merkit child.” Other people say, “No, it’s because he was a visitor on the territory of Jamukha at that time.” And other people can say, well, Jamukha’s ancestor who had been born from the kidnapped woman who was pregnant, that they had named that Jarigadi which meant foreigner. So, it’s kind of like a parallel, the visitor, the foreigner. And so Jamukha’s clan took the name from him. They were called Jadaran, Jadaran. So, there are all these things that sometimes we can’t quite understand because we don’t have the total mentality of that time, and we were not there.
Lex Fridman
But we should say that… I mean, it’s a pretty powerful part of this love story is that the child is likely not his. And he accepted that child as his own. And defended it as it becomes much more important later as his first child.
But we should say that… I mean, it’s a pretty powerful part of this love story is that the child is likely not his. And he accepted that child as his own. And defended it as it becomes much more important later as his first child.
Jack Weatherford
Yes, he defends this child through his entire life. But not long after the birth, he and Jamukha break apart. Or really it’s Temüjin breaks apart at the urging of Börte. She said, “He lords it over you too much. He orders you around too much. You need to be free. We need to break away.” And she urged him, and he loved his wife more than anything.
Yes, he defends this child through his entire life. But not long after the birth, he and Jamukha break apart. Or really it’s Temüjin breaks apart at the urging of Börte. She said, “He lords it over you too much. He orders you around too much. You need to be free. We need to break away.” And she urged him, and he loved his wife more than anything.
I think that in a certain way the most important other character in his life, adult life, would be the anda relationship. Which gets up being severely tested in the future years. But they run away through the night. They go all night long to escape from him. But he obviously loved Börte the most and took the baby of course with them as well.
Early battles & conquests
Lex Fridman
So, here’s this breaking point of the anda. How did that relationship evolve?
So, here’s this breaking point of the anda. How did that relationship evolve?
Jack Weatherford
The two of them never claimed to break it. They had just separated. Now, we have Wang Khan, the most powerful ruler on the Steppe who’s ruling out of Central Mongolia of the Kerait people. And so Jamakha remains loyal to him, but at first, so does Temüjin. They are both loyal to him, but they’re fighting in different kinds of campaigns, and all.
The two of them never claimed to break it. They had just separated. Now, we have Wang Khan, the most powerful ruler on the Steppe who’s ruling out of Central Mongolia of the Kerait people. And so Jamakha remains loyal to him, but at first, so does Temüjin. They are both loyal to him, but they’re fighting in different kinds of campaigns, and all.
So, for a while they’re not fighting each other. But eventually some things happened that separate Temüjin. Temüjin was making all of these great victories for Wang Khan. And he even got the title Wang, which means… from Chinese, meaning a prince or king. Wang Khan received that from the Jin Dynasty because of all of these conquests against the Tatar people.
So, Temüjin was rising up, and then he wanted his son to marry the daughter of Wang Khan, and Wang Khan said, “No.” His own son Senggum told the father, “No, no, no, no, we don’t marry those low people. They’re Mongols. They’re not like us. We are Kerait people. We’re not going to marry them.”
And so then now war, you could say, breaks out. Or feud really, it’s more of a feud. And Temüjin has to flee far away into the east to a place called Baljuna. And he goes to Baljuna, and at this time then Jamukha is going to fight on behalf of his Lord, Wang Khan. The two of them do not meet in combat, but now their forces are fighting each other.
Lex Fridman
And they didn’t see that. I mean, there’s an obvious tension there. There’s an obvious, if slight, breaking of loyalty, right?
And they didn’t see that. I mean, there’s an obvious tension there. There’s an obvious, if slight, breaking of loyalty, right?
Jack Weatherford
Yes. It’s hard to know what’s going through their minds at that point. We only have it later on when their relationship is being resolved in unfortunate ways. They claim that neither one of them ever truly broke it, because they never harmed each other directly.
Yes. It’s hard to know what’s going through their minds at that point. We only have it later on when their relationship is being resolved in unfortunate ways. They claim that neither one of them ever truly broke it, because they never harmed each other directly.
And in fact, then Temüjin eventually defeats Wang Khan. So, he takes over Central Mongolia, he’s starting to really rise up now. And he has the title from his own people of Chinggis Khan. They give him that at Black Heart Mountain by the Blue Lake. It’s a very beautiful special place.
But he takes that title. That’s not a title that anyone had ever held that we know of. Chinggis Khan, it was a new title that he just thought up, or somebody thought up, or somebody thought it had auspicious meaning behind it. It’s very close to the word tengiz, which means the sea. It could have had something to do with that.
Mongolians really like, we might say puns of… they like words with meanings. And that’s very important to them. The more meanings a word has, the more power that word has, so if it has different meaning and different languages. So, in the Mongolian, it sounds like strong Chin, Chinggis. But in the Turkic, and there are many Turkic people, including the Merkit themselves are mostly Turkic people. It sounds like the sea, tengiz, tengiz.
Lex Fridman
So, it’s exciting to them when there’s this double meaning and the double meaning plays with each other, and that excites them.
So, it’s exciting to them when there’s this double meaning and the double meaning plays with each other, and that excites them.
Jack Weatherford
Especially, with names. I’m like today in Mongolia… Well, I’ve been there so long, I think the fad has passed now. But about 20 years ago, it was popular to name children Misheel, girls. Because it’s a French name, an American name, and it means smile in Mongolian. So, it’s the power of three great languages and three great civilizations.
Especially, with names. I’m like today in Mongolia… Well, I’ve been there so long, I think the fad has passed now. But about 20 years ago, it was popular to name children Misheel, girls. Because it’s a French name, an American name, and it means smile in Mongolian. So, it’s the power of three great languages and three great civilizations.
And so many names are like that. And so I think Chinggis it doesn’t have one meaning. I think it means powerful, it means the sea, I think it means many different things. So, he had become a Khan, and he was ruling over him. And so Jamukha now switched loyalties to the next kingdom over called the Naiman people who are farther west.
And he becomes the protege, you could say, of the Naiman people. But when Chinggis Khan attacks the Naiman, Jamukha deserts the Naiman. He tells them, “These people have snouts of steel and they eat humans alive.” And he was telling him all these horrible things about the Mongols.
And Tayang Khan, the leader of the Naimans he was rightfully scared about them. And he was left there, and he, in fact, was very quickly also defeated. So, Jamukha has not fought against Temüjin in this campaign. And he’s off with some of his people, Jadaran clan people.
He’s off with them and they see the turning of the tide. But he now wants to become the Great Khan of the Steppe. He has very few followers, but he takes the title Gurkhan, which is a very old ancient important title. But because Wang Khan is gone, Toghrul Khan gone, he could take this title and pretend to be the great Khan of the Steppe, and all.
But his own people turn against him and they capture him, and they think they will take him to Chinggis Khan. It’s now Chinggis Khan. They’ll take him and they’ll be rewarded perhaps for turning him in. And Chinggis Khan does reward them immediately. He kills them all because they have betrayed their leader who is his anda. It’s a very strange encounter. And so supposedly Chinggis Khan says to him, “Come back to me, save me, be beside me, protect me, be my shadow, be my safety guard in life.” And supposedly Jamukha says, “But I did betray you when my people fought against you, and you will always know that, and you will never completely trust me. I’ll be like a louse underneath the collar of your tunic. I’ll be like a thorn in the lapel of your dell.”
He said, “Kill me without shedding my blood, let me die. And if you do, take my remains up to a high place and bury me, and I will be the guard, I’ll be the protector for you and your people forever.” So, they obviously, Tamujan did not participate in the killing, but he ordered the killing. And he was either… It’s not specified how he was killed without shedding the blood, but the Mongols had several ways.
Because the most honorable way to die was without shedding blood. The blood contains part of the soul, and if you lose it, you’re losing your soul before you die. So, they usually wrap them up in felt carpets and then beat them to death or trample them to death with horses, something like that. There are a couple other methods, but I think that’s probably the method by which Jamukha was killed.
And so he was killed, and then Temüjin or Chinggis Khan had his remains taken up and buried in a high place. This is over near Tuva, which is today part of Russia. But until the 20th century it was a part of Mongolia. The Tuvan people very, very close culturally to the Mongols.
Lex Fridman
It seems that both of them under the anda relationship had a deep value for loyalty. And so it’s not worth living after you’ve been disloyal, which is the Jamukha perspective, right?
It seems that both of them under the anda relationship had a deep value for loyalty. And so it’s not worth living after you’ve been disloyal, which is the Jamukha perspective, right?
Jack Weatherford
He had become very practical at this point, and he understood that you needed complete total loyalty and trust with everybody around you. And I think for this reason, he was willing either say, to accept the plea of Jamukha, and when Chinggis Khan was asking him to come back, and to be his shadow, and to be his safety guard. Again, maybe that was just a formality that he knew would be rejected. Or maybe when Jamakha offered to be killed without shedding blood, that was a formality that he thought would not be followed through.
He had become very practical at this point, and he understood that you needed complete total loyalty and trust with everybody around you. And I think for this reason, he was willing either say, to accept the plea of Jamukha, and when Chinggis Khan was asking him to come back, and to be his shadow, and to be his safety guard. Again, maybe that was just a formality that he knew would be rejected. Or maybe when Jamakha offered to be killed without shedding blood, that was a formality that he thought would not be followed through.
Lex Fridman
Nevertheless, to me, just reading your work and understanding this history, this relationship seems like a really, really important relationship that defines the nature of loyalty for Chinggis.
Nevertheless, to me, just reading your work and understanding this history, this relationship seems like a really, really important relationship that defines the nature of loyalty for Chinggis.
Jack Weatherford
I would say in both negative and positive ways, it was the most important relationship of his adulthood aside from Börte. But that relationship really did not seem to have many negative aspects. They sometimes disagreed on things, but small things. So, she was by him and she was positive in every regard so far as we know forever.
I would say in both negative and positive ways, it was the most important relationship of his adulthood aside from Börte. But that relationship really did not seem to have many negative aspects. They sometimes disagreed on things, but small things. So, she was by him and she was positive in every regard so far as we know forever.
Although she was not submissive but she was always on his side. And Jamakha, he was just a little too hot-headed for me. I mean, in my evaluation of him. That these things like, “Oh, we’re going to drop down on the Merkit and we’re going to come through the smoke hole, kill everybody,” and all. And he had a flair for the dramatic, even in a way of giving the gold belt to Temüjin.
But Jamakha also explained himself at the end of life, and he said, “We both lost our father, but I also lost my mother. And you had a strong mother to raise you, I did not.” And he said, “You had Börte, you have a very strong wife to help you. And my wife, just used a word like prattler, like she just sort of complains and prattles along, and we did not have a relationship.”
So, I think something about that rings true, that there were some elements of that that were true. But Jamakha certainly didn’t have the intelligence and the real genius for dealing with people, dealing with soldiers, especially in warfare that Temüjin had.
Lex Fridman
Yeah, in that relationship, there’s a contrast because Chinggis Khan did not accumulate riches or accumulate power in a way that was for the sake of the riches or for the sake of the power. He was always very practical in what is the way to maximize the success of this operation.
Yeah, in that relationship, there’s a contrast because Chinggis Khan did not accumulate riches or accumulate power in a way that was for the sake of the riches or for the sake of the power. He was always very practical in what is the way to maximize the success of this operation.
Jack Weatherford
Yes, yes. I often wonder, what happened to the gold belt? It disappeared from the story. And a gold belt doesn’t just disappear. What happened to that? It’s so interesting because Temüjin was never interested in material goods. And when as Chinggis Khan, as the ruler, in some ways you could say, became the richest man in the world, because he controlled the most wealth flowing through him.
Yes, yes. I often wonder, what happened to the gold belt? It disappeared from the story. And a gold belt doesn’t just disappear. What happened to that? It’s so interesting because Temüjin was never interested in material goods. And when as Chinggis Khan, as the ruler, in some ways you could say, became the richest man in the world, because he controlled the most wealth flowing through him.
But he always dressed simply. He always lived in the tent and he said, “I eat what my soldiers eat. I dressed the way my soldiers dressed. I lived the way my soldiers live. We are the same.” So, he had no interest in the wealth. And Jamakha, he had sided before with Wang Khan, which was very advantageous because they had more trade goods and wealthier people, and all. But he just didn’t have the temperament, I think, that was going to be helpful for Chinggis Khan’s continued rise.
Power
Lex Fridman
That is one of the powerful things about the Chinggis Khan stories. He came from nothing.
That is one of the powerful things about the Chinggis Khan stories. He came from nothing.
Jack Weatherford
From absolute nothing.
From absolute nothing.
Lex Fridman
And he didn’t, from what I see and understand, become sort of corrupted by the riches or changed. He fundamentally remained the same person who does not have value for material things.
And he didn’t, from what I see and understand, become sort of corrupted by the riches or changed. He fundamentally remained the same person who does not have value for material things.
Jack Weatherford
He changed and matured in various ways over life as we all do, or we hope we do. But he never became avaricious in any way. He was never greedy. He was never acquisitive. He kept a simple life. And part of the simple life for him meant that no one was allowed to write about him. No one was allowed to make his likeness. They couldn’t paint a picture of him. They couldn’t make a statue of him. No building could be built dedicated to him. No palace, no tomb, no temple of any sort. Not even, at the point of death, the simplest gravestone. Nothing, nothing.
He changed and matured in various ways over life as we all do, or we hope we do. But he never became avaricious in any way. He was never greedy. He was never acquisitive. He kept a simple life. And part of the simple life for him meant that no one was allowed to write about him. No one was allowed to make his likeness. They couldn’t paint a picture of him. They couldn’t make a statue of him. No building could be built dedicated to him. No palace, no tomb, no temple of any sort. Not even, at the point of death, the simplest gravestone. Nothing, nothing.
Lex Fridman
It’s fascinating that a kid, like a boy that doesn’t know the world would have the intelligence to understand how corrupting that is. The moment somebody builds a statue of you, it’s like a slippery slope. Doors becoming… Not seeing the world clearly. Not seeing surrounding yourself with sycophants that don’t tell you the information. Not being able to select the right people to lead the armies or to lead the territories that you conquer. So, it’s interesting that he had that foresight of don’t record, don’t worship. That’s because that’s a dangerous road to go down for a leader.
It’s fascinating that a kid, like a boy that doesn’t know the world would have the intelligence to understand how corrupting that is. The moment somebody builds a statue of you, it’s like a slippery slope. Doors becoming… Not seeing the world clearly. Not seeing surrounding yourself with sycophants that don’t tell you the information. Not being able to select the right people to lead the armies or to lead the territories that you conquer. So, it’s interesting that he had that foresight of don’t record, don’t worship. That’s because that’s a dangerous road to go down for a leader.
Jack Weatherford
And it’s very hard to explain how he stuck to that, how he got it. You’re so easily corrupted by power, and yet he maintained this very fierce attitude towards his relationship with the people around him, his guard mostly, or his private part of the army that went with him, the central part of the army. That was his relationship, his family. He had four wives. This was what was important to him. And in fact, no portrait was painted until 1278. Well, by then he’d already been dead for 51 years. And then no statue until the 21st century.
And it’s very hard to explain how he stuck to that, how he got it. You’re so easily corrupted by power, and yet he maintained this very fierce attitude towards his relationship with the people around him, his guard mostly, or his private part of the army that went with him, the central part of the army. That was his relationship, his family. He had four wives. This was what was important to him. And in fact, no portrait was painted until 1278. Well, by then he’d already been dead for 51 years. And then no statue until the 21st century.
Secret History
Lex Fridman
Just incredible. But let’s go to the document that you referenced several times, the Secret History.
Just incredible. But let’s go to the document that you referenced several times, the Secret History.
Jack Weatherford
The Secret History is a very unusual document, and I happen to love it very much. But I said, Chinggis Khan allowed nothing to be written about him in his lifetime. The people couldn’t take notes. Even the army was not… He, Chinggis Khan ordered the invention of the alphabet for the Mongol people. And it was adapted from the Uyghur people.
The Secret History is a very unusual document, and I happen to love it very much. But I said, Chinggis Khan allowed nothing to be written about him in his lifetime. The people couldn’t take notes. Even the army was not… He, Chinggis Khan ordered the invention of the alphabet for the Mongol people. And it was adapted from the Uyghur people.
And so to this day, it’s often called the Uyghur alphabet, the Uyghur alphabet. So, he had ordered that, and he’d ordered his children to learn to read and write. And some did, I think most did not, but some did. But one of the things he did with every campaign, even the one with the Merkit when he rescued Börte was he always adopted one orphan.
And that child became a full member of the Mongol nation and his household. His mother Hö’elün would raise the child. So, she eventually had a whole household full of boys of different tribes, but they all became very high-ranking members of the government. And one was the Tatar boy who turned out not to be so great as a soldier, but he could read and write, he was the best. And later eventually, he became the supreme judge appointed by Chinggis Khan, of course. And so when Chinggis Khan died, he recognized it was important not just to write down the law, that’s all Chinggis Khan allowed to be written in blue books, only the law. Nothing about him or campaigns or military, anything,
But Shigi Qutuqu, was his name. Shigi Qutuqu realized that this was going to be lost, that this is a great historic thing that has happened. So, he compiled the work. A part of it he… I don’t know other people contributed, helped him, just a little bit unclear. The Mongols, they don’t specify that. So, they always tell you exactly where something happens so we know exactly where it happened. In Mongolia, you can still go to that spot where he wrote it. That’s very important to the Mongols.
And we also know it as the year of the Mao, so it was 1228, Chinggis Khan had died at 1227. So, he wrote down, it begins with what we would say are the myths, although I’m not sure they’re myths, but the origins of the myths. It begins with the marriage of a Gray-Blue Wolf with a Tawny Deer.
Then some people say, “Well, that’s some kind of myth. It’s totemic.” And Mongols mostly, they look at me, I asked them about this. They said, “What? He was named Blue-Gray Wolf, she was named Tawny Deer. They married.” They are very practical about it, and they think they’re real people. Maybe they were or not, I don’t know.
So, this earlier history is just the Genealogy as it should be, who knows? But it’s also in there because like Bodonchar, they call it Bodonchar the Fool, the ancestor of Temüjin. He’s cast out because he’s just so dumb. The rest of the family doesn’t want him. And his father is undetermined who he was. He kidnapped the Ö’elün Üjin woman. She has the child who becomes the ancestor, Temüjin.
So, it’s a confusing mess. But I tend to think it’s probably accurate. It has a lot of good information. And by the time you get to the life of Temüjin, the reason we know these intimate things is because that person Shigi Qutuqu, he was there. Sleeping in the same gear with the people. So we even see in there, he will record instances where Börte sits up in bed and tells her husband, “Okay, you got to do this. You got to do that. You can’t do this anymore. We can’t think of”… It’s all recorded, right?
So, it’s a very intimate document. And this is one reason that it was secret, it was only for the family. They were trying to uphold Chinggis Khan’s prohibition against putting out information about the family. So, it was a secret for a very long time. So, much so that scholars began to think it didn’t exist.
And then in the 19th century, a Russian academic who was working in China at the time, in Beijing. He discovered a manuscript which was very, very odd that people didn’t think was anything because it’s all Chinese characters, but it makes no sense in Chinese. But he recognized, but if you read it, pronounce it, it makes sense to a Mongolian. And so it was in this code that had been used to record the information in Chinese.
Lex Fridman
So, they were recording the sounds.
So, they were recording the sounds.
Jack Weatherford
The sounds, correct. They used Chinese characters to record sounds. Which is always problematic in some little areas here, not exactly sure what the name is or something like… But it was a very unusual document. And then once they found it, they realized that some of the Persian documents had incorporated part of that already.
The sounds, correct. They used Chinese characters to record sounds. Which is always problematic in some little areas here, not exactly sure what the name is or something like… But it was a very unusual document. And then once they found it, they realized that some of the Persian documents had incorporated part of that already.
So, that was very helpful to me because some of the Persians I trust very much, and I liked their work very much. And so it was helpful that it already existed. And some of it existed in other Mongolian sources that were written later. Some of it was just incorporated.
So, it seemed to be fairly genuine, but it wasn’t a hundred percent pure. It had… Little things had happened to it along the way. Some things have been stepped here and there, and a few words changed. Sometimes for Temüjin, they call him Chinggis Khan. Well, he wasn’t the Khan then. And sometimes they call him Khan, which is like chief, and other times Khan, which is Emperor. Well, in Mongolian, it’s a big difference.
So, there are little things like this that move around that you’re not sure why. But it’s a document that I have great faith in. It was not published in English until 1982, but Francis Woodman Cleaves at Harvard University translated it in the 50s. It was ready for publication, and he was having trouble with the publisher. And so it didn’t appear for nearly 30 years.
And it was supposed to be two volumes. The first volume is the translation, the second volume was going to be the notes, and the second volume was lost. To this day, it hasn’t been found. I would love to see that. But anyway, now it’s in all languages, just about in the world.
Lex Fridman
Can you clarify? So there’s two volumes, the 19th century Chinese manuscript covers the first volume.
Can you clarify? So there’s two volumes, the 19th century Chinese manuscript covers the first volume.
Jack Weatherford
Yes, that was translated and then published by Harvard University. But the notes were just the notes from the scholar, Francis Woodman Cleaves. Those were his notes, not Mongolian notes.
Yes, that was translated and then published by Harvard University. But the notes were just the notes from the scholar, Francis Woodman Cleaves. Those were his notes, not Mongolian notes.
Lex Fridman
I got it.
I got it.
Jack Weatherford
There are Chinese notes that went with it because the Chinese had trouble understanding a lot of things in it. And they also, they disapproved of some things, so they would try to put their own notes in the margins to kind of correct the story and explain in a way why the Mongols women would be often marrying their stepson. It just did not match with Confucian ethics. So, there’s several things like that that they try to skip around. But so it’s interesting just to read the Ming Dynasty notes that are attached to it. But the document itself, Mongolian Nuuts Tovchoo, it’s just so important. And for me it was the guiding document. I didn’t want to be guided by anything else, first.
There are Chinese notes that went with it because the Chinese had trouble understanding a lot of things in it. And they also, they disapproved of some things, so they would try to put their own notes in the margins to kind of correct the story and explain in a way why the Mongols women would be often marrying their stepson. It just did not match with Confucian ethics. So, there’s several things like that that they try to skip around. But so it’s interesting just to read the Ming Dynasty notes that are attached to it. But the document itself, Mongolian Nuuts Tovchoo, it’s just so important. And for me it was the guiding document. I didn’t want to be guided by anything else, first.
Everything else I would check to correlate and fill in blanks and give more information. But I went to Mongolia to travel around to those places because they are so exact in there, and to feel it. And it’s so important, I think, because your history does not live in books. History does not live in archives or even libraries, as much as I need them for my work.
But history lives in the people. History lives in the memory of the people and the culture. And for example, the episode with the kidnapping of Börte. So, I went to that place and I didn’t know when it happened, what season it happened. It was very important for figuring out the bursts that came afterwards and other events that were being correlated.
Very important to me. And so I’m just talking to the people who live in that valley, the nomads there. They said, “Oh, it’s clear, it was the winter.” I said, “Oh, where did you read that?” He said, “No, granny Kuoqchin was on the ground, and she could feel the vibrations.” She said, “Look, this is summertime now. You’re not going to feel any vibrations the ground here is so soft.” Suddenly a whole important piece that I’ve been searching for just came together from some nomad sitting there next to his horse.
And he was absolutely right. It could only happen in the winter. And that also correlates with the time that reading was done. So, it correlates with other historic factors. But then that gave me the time basis for figuring out a lot of other things. History lives in the people.
Lex Fridman
Just to link on that point, you visited different places that were important to the story of Chinggis Khan. What did it feel like? What are some memorable things about just the experience of standing there?
Just to link on that point, you visited different places that were important to the story of Chinggis Khan. What did it feel like? What are some memorable things about just the experience of standing there?
Jack Weatherford
Yes. I really set out mostly to visit the cities he had conquered across Central Asia and all. And there was so little to learn. I mean, everything was kind of known of whatever the Chroniclers had recorded, the archeologists had found whatever they had found. And I get there, and he hadn’t spent much time there, he didn’t identify with it, I wasn’t feeling anything.
Yes. I really set out mostly to visit the cities he had conquered across Central Asia and all. And there was so little to learn. I mean, everything was kind of known of whatever the Chroniclers had recorded, the archeologists had found whatever they had found. And I get there, and he hadn’t spent much time there, he didn’t identify with it, I wasn’t feeling anything.
But in Mongolia, I would go to these places and I would know… If Chinggis Khan came back today, he would know exactly where he is. There’s no road, there’s no sign, there’s no building, there’s no power line going to… nothing. And just to smell the air, to feel it, to see the animals, and to see what kind of animals live here, what kind of plants are growing here, you begin to get a-
Jack Weatherford
… here. What kind of plants are growing here? You begin to get a feeling for how he was thinking and then you begin to see, ah, I know which direction they came from, the only direction they could come from was that way. You begin to see it and his life starts to unfold in a very dramatic way that I have the text or the text is it has no scenery, no props, nothing like that. The Mongols all understand their way of life, they don’t need to explain anything. They know which way the ger faces with the sun, they know all these things but, for me, that’s how I learned it, it was from being with the people, it was the most important thing and this was starting in the 1990s and the people, at this time, they were amazed that I would come.
… here. What kind of plants are growing here? You begin to get a feeling for how he was thinking and then you begin to see, ah, I know which direction they came from, the only direction they could come from was that way. You begin to see it and his life starts to unfold in a very dramatic way that I have the text or the text is it has no scenery, no props, nothing like that. The Mongols all understand their way of life, they don’t need to explain anything. They know which way the ger faces with the sun, they know all these things but, for me, that’s how I learned it, it was from being with the people, it was the most important thing and this was starting in the 1990s and the people, at this time, they were amazed that I would come.
The Soviet era had just ended, socialism was just ending, democracy was starting and Genghis Khan had been forbidden to them for almost the entire century and every known descendant of Genghis Khan was killed in Mongolia following the secret history, that became the key to writing what I wrote. Take the history, which is difficult to understand, you have to go over and I often never understand different parts or I change my mind and think it was yes now it’s no but the secret history is a valuable document. And to me, also, it’s the opening document of Mongolian written language and I think it’s very important how do people begin their written language and they begin it with the words [foreign language 01:09:45], from highest heaven came the destiny of the blue wolf who is married to the tawny deer and their descendants who came from the Great Sea to live at the base of Mount Burkhan-Khaldun.
Lex Fridman
And then integrating the spiritual elements of nature, the mountains and the Great Sea and this deep connection to nature that they have.
And then integrating the spiritual elements of nature, the mountains and the Great Sea and this deep connection to nature that they have.
Jack Weatherford
Mongolia is a world that, for the most part, is the same as when Genghis Khan was there, we cannot say that far to any other place in the world. Certainly not for America but, just a few hundred years ago, it was entirely different, people, languages, everything. But you can’t say it for London or Moscow or Istanbul, Constantinople, all of these things have changed so much but Mongolia is still Mongolia. It’s one of the largest countries in the world and space with the fewest number of people about, today, 3.3 million and they’re spread out and they live in their environment in such an intimate way. This was important for learning about Genghis Khan, how he thought, how he hunted, how he strategized for war, you learn that from the people today because they’re still there, they’re still living.
Mongolia is a world that, for the most part, is the same as when Genghis Khan was there, we cannot say that far to any other place in the world. Certainly not for America but, just a few hundred years ago, it was entirely different, people, languages, everything. But you can’t say it for London or Moscow or Istanbul, Constantinople, all of these things have changed so much but Mongolia is still Mongolia. It’s one of the largest countries in the world and space with the fewest number of people about, today, 3.3 million and they’re spread out and they live in their environment in such an intimate way. This was important for learning about Genghis Khan, how he thought, how he hunted, how he strategized for war, you learn that from the people today because they’re still there, they’re still living.
Mongolian steppe
Lex Fridman
What’s the open Mongolian steppe like? As we return to the feeling of Temujin and Genghis Khan, what’s it like looking at this place that has not changed since this time?
What’s the open Mongolian steppe like? As we return to the feeling of Temujin and Genghis Khan, what’s it like looking at this place that has not changed since this time?
Jack Weatherford
The first thing I think about this steppe is that you can see forever in every direction. There’s no building, nothing to stop your line of view and it’s like being in the ocean in many ways. So, you have this extremely open space and the wind is usually blowing through it but it’s extremely fresh, it’s coming out of Siberia, it’s coming out of the Arctic, it sweeps down across Mongolia, cold as a dickens sometimes but it’s always fresh, always fresh. So, you have the wind coming in, you have the smell of the wind but also then there’s grass, the smell of grass becomes very important. Now, because of the particular location, from one year to another, one area may have grass one year and then drought the next year, another area has grass so you don’t always know. If it’s not grass, it’s dust. You have dust flowing in, the dust doesn’t smell so good, it doesn’t feel so good but that’s just one more part of the country.
The first thing I think about this steppe is that you can see forever in every direction. There’s no building, nothing to stop your line of view and it’s like being in the ocean in many ways. So, you have this extremely open space and the wind is usually blowing through it but it’s extremely fresh, it’s coming out of Siberia, it’s coming out of the Arctic, it sweeps down across Mongolia, cold as a dickens sometimes but it’s always fresh, always fresh. So, you have the wind coming in, you have the smell of the wind but also then there’s grass, the smell of grass becomes very important. Now, because of the particular location, from one year to another, one area may have grass one year and then drought the next year, another area has grass so you don’t always know. If it’s not grass, it’s dust. You have dust flowing in, the dust doesn’t smell so good, it doesn’t feel so good but that’s just one more part of the country.
The waters are mostly pure. Now, unfortunately, there has been pollution in this century from mining in several areas but, even when I was there or even today when we go to some place like the Selenga River where we talk about the market lived, so it’s a place of pure waters and that’s how Mongolians define their world is by the water. Genghis Khan does not give lands to his sons to rule, he gives waters and people to rule. They do not refer to the earth as land, they refer to the earth as dalai, ocean, the sea. And so, water is very important and, to learn the rules about water, you don’t camp by water. If you can’t by water, your animals and you are going to be polluting it, messing it up so they’re back, maybe in our modern terms, about a kilometer back. You take the animals to the river to drink and then you take them away. You do not bathe in that river, you take the water away from the river and you bathe away from the river so you do not pollute the river.
The rules are very strict and very clear and they’re from the time of Genghis Khan about how to deal with … But also, it’s dangerous to live close to the river because there are flash floods in the summertime, you could suddenly have it and it could wipe away if your camp is right there by the water. So, the people, they live with nature in a way that I don’t see anywhere else in the world. And even today with the changes with the cell phone and with solar panels and they could get TV out in the middle of the steppe, still they’re living a similar life. The young people, of course, want to drive a motorbike but they’re still herding cows and yaks and camels. If it’s on a motorbike, okay, they’re still doing it the Mongol way.
Mounted archery and horse-riding
Lex Fridman
But then, if we go to the time of Temujin, of Genghis Khan, another component is the horses. Can we talk about their relationship with the horse? Thinking about this open steppe, from a young age, all Mongols are trained to master riding horses. As you write, while standing on the horse, so they learn how to ride while standing on the horse from a young age. While standing on the horse, they often jostled with one another to see who could knock the other off. When their legs grew long enough to reach the stirrups, they were also taught to shoot arrows and to lasso on horseback making targets out of leather pouches that they would dangle from poles so they would blow in the wind. The youngsters practice hitting the targets from horseback at varying distances and speeds, the skills of such play proved invaluable to horsemanship later in life. Can you speak to the relationship of Genghis Khan and the Mongols to horses?
But then, if we go to the time of Temujin, of Genghis Khan, another component is the horses. Can we talk about their relationship with the horse? Thinking about this open steppe, from a young age, all Mongols are trained to master riding horses. As you write, while standing on the horse, so they learn how to ride while standing on the horse from a young age. While standing on the horse, they often jostled with one another to see who could knock the other off. When their legs grew long enough to reach the stirrups, they were also taught to shoot arrows and to lasso on horseback making targets out of leather pouches that they would dangle from poles so they would blow in the wind. The youngsters practice hitting the targets from horseback at varying distances and speeds, the skills of such play proved invaluable to horsemanship later in life. Can you speak to the relationship of Genghis Khan and the Mongols to horses?
Jack Weatherford
The Mongol and the horse are inseparable. I wrote one line in the book that the editor removed because that was insulting. I said, the Mongol and the horse, they live together, they know each other with every twitch of the muscle and they smell the same. Well, I was saying it just not to be insulting about anything but they have that deep intimacy and the horses do know their owner from the smell. This is very important. It’s also important for Genghis Khan because they made the flags, what they call [foreign language 01:16:05], out of the horse hair from their own horses. And so, in battle, they used it for a very practical purpose and that is the horses would return to their source because they knew the smell of their flag, it was other members of their own herd.
The Mongol and the horse are inseparable. I wrote one line in the book that the editor removed because that was insulting. I said, the Mongol and the horse, they live together, they know each other with every twitch of the muscle and they smell the same. Well, I was saying it just not to be insulting about anything but they have that deep intimacy and the horses do know their owner from the smell. This is very important. It’s also important for Genghis Khan because they made the flags, what they call [foreign language 01:16:05], out of the horse hair from their own horses. And so, in battle, they used it for a very practical purpose and that is the horses would return to their source because they knew the smell of their flag, it was other members of their own herd.
So, the language itself, I have never ever mastered all the words just for the colors of horses, much less for all the other things about it. I can remember, Mongolians, being out there in the countryside, they say, “Oh, I want to learn English.” I say, “Okay. Yeah, that’s nice, you teach me some words in Mongolian, I teach you some words.” “Okay.” They say, “What color is that horse?” I say, “Brown,” they would say, “Brown.” I’d say, “Yes, okay. What color is that horse?” “Brown.” Then they said, “But you said this color was brown, what color is this?”
I said, “Well” … It’s just amazing. They have words based on how smooth the coloring is and the variation in the texture and all the different … Today in English, sometimes you can put them together, we say yellow brown or brown brown or black. But the words for horses, of course, by sex and then they have three because they have geldings and so they’re very important too and by age and by whether or not they’ve reproduced in the case of the females, all these things are important parts of the horse and the horse. And the horse …
A few years ago, a presidential candidate ran under the slogan raised in the dust of many fast horses. It just resonates with the Mongolian spirit and the dust itself is important. The Mongolians, they will wipe the sweat and the dust off the horse and wipe it onto their own forehead which is the most sacred part of the body where the soul resides. This is how intimate a relationship is with the horses and they’re hard on them in some ways, they train them very well, they ride them very hard but the horses are also trained for that. They use a very small crop, it’s a little bit like a stick with a slight whip at the end, that they hit the rump of the horse, never anything else. They’re horrified at Western people who use metal spurs and metal to harm the horse in the stomach. And to harm the head of a horse, they say it’s a capital crime. I don’t know anyone who’s ever executed for it but you never ever harm a horse’s head.
So, the horses are important in every way, even religiously important with the making of the fermented horse’s milk that the mother goes out every morning and she throws some to each of the four directions to start the day and they use it for every kind of thing. But some things puzzled me that, in my watching, I remember one day being with a very nice family, it happened to be on a gelding day when they were out there gelding the would-be stallions who don’t get to be stallions. But this family, they had a bunch of boys and only one or two girls, there were four or five boys and one boy was maybe 11 years old, he fell from the horse. You could see it not so far away, he fell from the horse and he didn’t get up. No one moved. In fact, they all turned attention away and I thought, what am I supposed to say? “This boy fell down, somebody go get him.” No.
And then the boy was trying to hobble back, he still had the reins to his horse, but he couldn’t remount and he was trying to hobble back so his little brother went out to help him come in and they came into the ger and they sat down, the mother just turned her back. And I’m thinking, how on earth can you do this? This is a child, this is your child. But two weeks later, by chance, another boy who is practicing for Naadam, the annual races this boy had been doing, he was often in an area right close to the mountain area and the horse bolted, took off through the woods, he was knocked off by a tree and then the horse went deeper into the woods, the boy followed him, the boy became lost. The boy was 12 years old, he was lost for two weeks and he lived. I would’ve died in 48 hours, he lived.
He said, well, he slept in the daytime when it was warm, he walked at night when it was cold, even though this was the summertime, the nights can be quite cold especially on a mountain, and he sang loudly all night long to keep the wolves away. And he knew what to eat and then he walked until he found water moving and then he would follow that water down to the … He lived and I realized, the boy falls from the horse, his mother’s not going to be there, she knows that. And it’s probably hard for her too to see her boys suffer but she knows.
Lex Fridman
Just a small tangent. There’s a wrestler named Cary Kolat and he tells the story about mental toughness, that the first time he saw truly mentally tough people was when he visited Mongolia for a wrestling tournament. And he remembered that they were taking showers in ice-cold water and, all the other wrestlers, they would take the shower and then, when the water hits them, you could see a little grimace. With the Mongols, it was emotionless. So, ice-cold water or any other kind of hardship, you build a hardness to that.
Just a small tangent. There’s a wrestler named Cary Kolat and he tells the story about mental toughness, that the first time he saw truly mentally tough people was when he visited Mongolia for a wrestling tournament. And he remembered that they were taking showers in ice-cold water and, all the other wrestlers, they would take the shower and then, when the water hits them, you could see a little grimace. With the Mongols, it was emotionless. So, ice-cold water or any other kind of hardship, you build a hardness to that.
Jack Weatherford
Yes, yes.
Yes, yes.
Lex Fridman
And I suppose that falling from the horse is just an example of that.
And I suppose that falling from the horse is just an example of that.
Jack Weatherford
Yes, yes.
Yes, yes.
Lex Fridman
There’s a mental hardness and a mental toughness.
There’s a mental hardness and a mental toughness.
Jack Weatherford
You have to be able to take care of yourself. And with the weather, for example, often in that time, and still today, some people, if they can have the privacy to do it, the men will strip naked in the first heavy snow and roll around in the snow in order to prepare for the coming winter. And the valley where I lived, a lot of wrestlers come there to train in the summertime for the competition and the water is very cold coming down from the mountain and, every day when there’s a break, they go down, they take … Again, they do not get in the water, never but they take the water and they pour the cold water over themselves and, yes, it’s refreshing to them, refreshing.
You have to be able to take care of yourself. And with the weather, for example, often in that time, and still today, some people, if they can have the privacy to do it, the men will strip naked in the first heavy snow and roll around in the snow in order to prepare for the coming winter. And the valley where I lived, a lot of wrestlers come there to train in the summertime for the competition and the water is very cold coming down from the mountain and, every day when there’s a break, they go down, they take … Again, they do not get in the water, never but they take the water and they pour the cold water over themselves and, yes, it’s refreshing to them, refreshing.
Genghis Khan’s army
Lex Fridman
Well, then, getting back to the horses, the value they had for the horses and the horse riding skill they developed throughout their life created one of the most unstoppable military forces in history. So, if we just talk about the mounted archery that they’ve employed in war. The Mongols were able to do targeted shooting accurately at 200 meters or more while riding fast, up to speeds of 60 kilometers an hour, I read. So, there’s a lot to say. You have to time, and just watching some of the videos, it’s just incredible how stable you could be on top of a horse and I guess you’re supposed to be shooting at a moment of the gallop when all four of the feet of the horse are off the ground. And so, you have to time all of that, you have to position your body to maintain balance and then there’s the skill of the actual holding and shooting the bow accurately and there’s, obviously, the technology of the bow, the composite bow, the recurve bow.
Well, then, getting back to the horses, the value they had for the horses and the horse riding skill they developed throughout their life created one of the most unstoppable military forces in history. So, if we just talk about the mounted archery that they’ve employed in war. The Mongols were able to do targeted shooting accurately at 200 meters or more while riding fast, up to speeds of 60 kilometers an hour, I read. So, there’s a lot to say. You have to time, and just watching some of the videos, it’s just incredible how stable you could be on top of a horse and I guess you’re supposed to be shooting at a moment of the gallop when all four of the feet of the horse are off the ground. And so, you have to time all of that, you have to position your body to maintain balance and then there’s the skill of the actual holding and shooting the bow accurately and there’s, obviously, the technology of the bow, the composite bow, the recurve bow.
They’ve also, I read, used crossbows later, they’ve adapted the technology and there’s a particular kind of a thumb draw that you use for shooting with the composite bow that works for a horse. The thing is bouncing up and down, so you have to not drop the arrow. It’s just incredible to be able to shoot while the horse is going 60 kilometers an hour. Anyway. Can you speak to this exceptional excellence that Genghis Khan and the Mongols had for riding horses and engaging in war off of the horse?
Jack Weatherford
The Mongol, the horse and the bow were a perfect combination and it was the most lethal weapon known to the world before the modern era. It was incredible the synchronization and the timing of the movements and also the years of skill. The fact that, from absolute birth, the Mongols would be on a horse and, by three years old, they would probably be riding alone on the horse. Now, when I first went to Mongolia in the 1990s, at that time, all jockeys on horses for races had to be under six years old. That was the age limit, the cut-off was six years old at that time and so you had some as three years old racing out there. It’s absolutely incredible. And of course, at that age, they can’t even have a saddle because it can’t even be used so all they’re doing is staying on the horse, the horse has been trained to do what it has to do and they just stay on it.
The Mongol, the horse and the bow were a perfect combination and it was the most lethal weapon known to the world before the modern era. It was incredible the synchronization and the timing of the movements and also the years of skill. The fact that, from absolute birth, the Mongols would be on a horse and, by three years old, they would probably be riding alone on the horse. Now, when I first went to Mongolia in the 1990s, at that time, all jockeys on horses for races had to be under six years old. That was the age limit, the cut-off was six years old at that time and so you had some as three years old racing out there. It’s absolutely incredible. And of course, at that age, they can’t even have a saddle because it can’t even be used so all they’re doing is staying on the horse, the horse has been trained to do what it has to do and they just stay on it.
But by staying on it, they learn the horse, they become one and, not just one horse with one rider, but one rider with several horses. Usually, five is the number that you should have for you when you go off to battle and this ability to shoot. You have to defend your animals, there are wolves around, foxes, other things, in some areas, there were even tigers and other animals that would come in and you had to be able to shoot to defend it against other people who might be raiding you. So, they became excellent archers that had composite bows that were very powerful, much more powerful than those of most sedentary people. Now, I say all that because it’s very important but those are all nomadic traits of the great steppe anyway. In an earlier version, you had the huns who came out of Mongolia and hun is just the Mongolian word for human. Hun, to this day, that’s what they say for a human being. So, they came out of Mongolia and all the early Turkic groups came out of Mongolia and they had similar skills.
So, you have this perfect weapon but also you have to have perfect strategy and how to coordinate it and organize it and use it and this is where the genius that I cannot explain at all but the genius of Genghis Khan came in. Other people, I think, had been very good in earlier times, a number of Turkic leaders or even Attila the Hun who, of course, was actually born in the West but they were charismatic leaders and very dramatic leaders and it wasn’t that they were so excellent in their strategy, they were very good in warfare and that’s what carried them through.
Genghis Khan’s army was extremely good in warfare but small. He never got probably above 100,000, at the most 110,000. That is small. When you’re going against China that has millions just in the army, not to count in the country, and you’re going against Russia and you’re going against the Middle East and Persia and Afghanistan and these areas, your whole army has to be as finely tuned as each rider, each bow and each horse. That’s the weapon but the army becomes the super weapon of Genghis Han, how he organized it, on how he used it and the strategies that he put together.
Lex Fridman
Yeah. When you have a small army … Just think about that. A small army that conquered the world.
Yeah. When you have a small army … Just think about that. A small army that conquered the world.
Jack Weatherford
It would fit in a stadium today in America.
It would fit in a stadium today in America.
Lex Fridman
So, there’s extreme efficient coordination of units, mostly cavalry, right?
So, there’s extreme efficient coordination of units, mostly cavalry, right?
Jack Weatherford
All cavalry.
All cavalry.
Lex Fridman
It was all cavalry?
It was all cavalry?
Jack Weatherford
He had no infantry and he had no baggage train, he had no backup commissary, early on, no engineer corps, later one was added, much later. But no, all cavalry.
He had no infantry and he had no baggage train, he had no backup commissary, early on, no engineer corps, later one was added, much later. But no, all cavalry.
Lex Fridman
And so, there’s light cavalry and heavy cavalry and breaking down units using the decimal system, 10, 100, 1,000 so there’s a hierarchy where you delegate authority but, to the degree there’s commands, they must be followed strictly.
And so, there’s light cavalry and heavy cavalry and breaking down units using the decimal system, 10, 100, 1,000 so there’s a hierarchy where you delegate authority but, to the degree there’s commands, they must be followed strictly.
Jack Weatherford
Yes.
Yes.
Lex Fridman
So, for extremely efficient, accurate, precise deployment of these troops in the battlefield and the dynamic movement of the troops, including all the interesting tactics that were utilized, you have to have really good communication and coordination and, for that, orders must be followed.
So, for extremely efficient, accurate, precise deployment of these troops in the battlefield and the dynamic movement of the troops, including all the interesting tactics that were utilized, you have to have really good communication and coordination and, for that, orders must be followed.
Jack Weatherford
Yes.
Yes.
Lex Fridman
Is there something to speak to that? How do you tune this kind of system to where everybody is working together so well?
Is there something to speak to that? How do you tune this kind of system to where everybody is working together so well?
Jack Weatherford
I think the first point is the extreme loyalty of the people whom Genghis Khan chose. His kinsmen, as we said, had deserted him, his anda was a questionable relationship but all the others that he found were just common people, herders or hunters, very common, and they were loyal to him and never, ever revolted against him, never betrayed him. So, he had extreme loyalty. And then, as you mentioned, he organized as decimal system so the smallest unit of the army was the [foreign language 01:30:04], the squad of 10 men. They were put together and then, the head of that squad, he had total control over it but the men knew that they were going to protect each other and they had to come back with every member or every body, you don’t leave anybody behind. So, this was extremely important.
I think the first point is the extreme loyalty of the people whom Genghis Khan chose. His kinsmen, as we said, had deserted him, his anda was a questionable relationship but all the others that he found were just common people, herders or hunters, very common, and they were loyal to him and never, ever revolted against him, never betrayed him. So, he had extreme loyalty. And then, as you mentioned, he organized as decimal system so the smallest unit of the army was the [foreign language 01:30:04], the squad of 10 men. They were put together and then, the head of that squad, he had total control over it but the men knew that they were going to protect each other and they had to come back with every member or every body, you don’t leave anybody behind. So, this was extremely important.
So, if you submit to the orders of the man in charge, you know that he’s risking his own life for you also and you know that your brother on the left and on the right is risking his life for you. The army, they were organized with five horses each man, they had their bow and they had a lot of arrows, as many as they could have, but they also retrieved arrows at the end of their battle and they also would retrieve the enemy arrows. This was a great advantage, by the way, when they hit Russia because the Russians could not use Mongolian arrows, they could knock them in their bow but the Mongols could use Russian arrows.
So, all these little things but it’s not even just the arrow, also they had to carry needle and thread. Every soldier had to be able to sew and sometimes that could be a torn garment, it could be a piece of skin or a wound that somebody has. It was a very odd thing when you think about the army of Genghis Khan and they’re carrying everything themselves, they don’t have any pack train behind them and that one of the things they have to carry is needle and thread in order to sew up things.
Lex Fridman
So, complete self-reliance in that regard.
So, complete self-reliance in that regard.
Jack Weatherford
Yes. They also carried dried dairy products, aaruul it’s called, dry curd and they can keep it for a couple of years even. But you dry it and then, when you need it, you can put it in a flask of water, you ride all day, it joggles up and down, boom, boom, boom and turns into thick protein. It’s said that the Mongols could easily go three to five days without ever building a fire, they had enough food. They would …
Yes. They also carried dried dairy products, aaruul it’s called, dry curd and they can keep it for a couple of years even. But you dry it and then, when you need it, you can put it in a flask of water, you ride all day, it joggles up and down, boom, boom, boom and turns into thick protein. It’s said that the Mongols could easily go three to five days without ever building a fire, they had enough food. They would …
So, all these little things at the lowest level were important as well at the highest level of his loyalty of his men to him and it went all the way down. Loyalty was extremely important and he organized the army into left wing, right wing or east and west. Mongols, the word for left is east, the word for right is west so those two wings and then in the middle was the [foreign language 01:32:30], the center, this moving center that was his bodyguard and his unit in the middle.
Then usually they would have a vanguard and a rearguard and sometimes the vanguard would go out as much as two years in advance to clear the land, run the people away, scare them, make them go away so that the grass is left there for the army when it moves through. And they never marched the way other armies do it in a line of one following the other, they would always go in long lines spread out in wings so that each horse is on its own path, you can say, but all parallel together. So, they had very precise ways of doing things and this, I think, was the secret with him and he used the best people but he was willing to train them as much as possible, he never punished them for what happened. So, Shigi Qutuqu, for example, the supreme judge, he was command one time of a group in a battle in Afghanistan and he lost the battle which is very, very unusual for Mongols.
So, Genghis Khan went out with him, said, “Okay, let’s go to the battlefield together and look it over and you explain to me what you did and then we will talk about it.” So, he was very thoughtful in the way that he was training the people around him and they knew they weren’t going to be punished, it’s not like these countries where the general comes back and gets executed because he lost. No, Genghis Khan knows every general is going to try 100% and, if they retreat fine, they’re saving Mongol lives, they know what to do, he respects that. So, all these things like that fit together but I think a part of it that was important for him … So, he had this base from steppe warfare already, the horse, the archery and how that all fit together but he was very quick to embrace any kind of other technology that he saw.
I think that sedentary armies, sedentary civilizations, they get stuck in ways, this is how we do it. And we’re going to make it a little faster, we’re going to make it a little bigger, a little stronger but this is how we think. Genghis Khan had no set way to think and, when he encountered the first walled cities around 1209 after founding his nation in 1206, he went out on these raids and I really think there were raids not wars at first. So, he went into Tangut territory of what’s now northwestern China in the upper reaches of the Yellow River. So, he went there and, of course, the cities have walls around him, this is a man who’s never encountered a wall in his life. Well, he did but they were made out of felt, the walls around his tent or felt walls.
Lex Fridman
Yeah. Just imagine what it’s like for the first time in your life seeing a wall.
Yeah. Just imagine what it’s like for the first time in your life seeing a wall.
Jack Weatherford
Yes.
Yes.
Lex Fridman
When you come from the Mongolian steppe where there’s very few even natural wall-like things.
When you come from the Mongolian steppe where there’s very few even natural wall-like things.
Jack Weatherford
Right. Well, they have wall cliffs in some places, they’re familiar with that and they can climb them but they don’t have people at the top shooting down the mountain but on the … So, he looked but he looked at everything around him and he saw, okay, they have this river and they have all these channels and they’re always moving water around and, like we said, for a Mongol, anything that moves is a potential weapon, anything that doesn’t move is a target. You’ve got moving water, you’ve got a standing non-moving wall so he said, okay, the men are going to dig a channel and they’re going to bring down the wall of the Tangut city.
Right. Well, they have wall cliffs in some places, they’re familiar with that and they can climb them but they don’t have people at the top shooting down the mountain but on the … So, he looked but he looked at everything around him and he saw, okay, they have this river and they have all these channels and they’re always moving water around and, like we said, for a Mongol, anything that moves is a potential weapon, anything that doesn’t move is a target. You’ve got moving water, you’ve got a standing non-moving wall so he said, okay, the men are going to dig a channel and they’re going to bring down the wall of the Tangut city.
Well, they did it and they didn’t know exactly what they were doing and the embankments weren’t high enough and too much water came in from the Yellow River and actually flooded out the Mongol camp. But okay, it happened, we learned that lesson so we’re going to improve it and that became a strategy that actually worked for the Mongols for the next 50 years, all the way to Baghdad. They were able to use it when they conquered Baghdad in 1258.
So, this ability to see things and to try them and, if they fail, to try them in a different way but a better way … We all think we learn from our mistakes. We all, yeah, yeah, I learned from that, I … And what do we do? We repeat the mistake. I think it’s just a part of human nature. Well, it didn’t work the first eight times but I’m going to do it one more time, I think it’s going to work. I know I’m going to win the lottery this time because I got the right … That’s how we think. But he had that real ability to, first of all, to be humble before these other things he didn’t know about, technology, and to understand that he didn’t understand but he could understand it in his own way and he did. Over and over, the Mongols were excellent at putting together new things and new ways and using them against their enemies.
Lex Fridman
So, rapid, extreme, continued innovation. So, you couple that with a, you have to say, a revolutionary idea that promotion should be based on merit. That idea combined with the innovative approach to military it just feeds on itself because the people who are learning from their mistakes and constantly improving are the ones that get promoted in the positions of power and then they inspire everybody else to do the same. And so, if every action is judged based on the excellence of that action, then over time, repeated iteration in war creates a more and more powerful army.
So, rapid, extreme, continued innovation. So, you couple that with a, you have to say, a revolutionary idea that promotion should be based on merit. That idea combined with the innovative approach to military it just feeds on itself because the people who are learning from their mistakes and constantly improving are the ones that get promoted in the positions of power and then they inspire everybody else to do the same. And so, if every action is judged based on the excellence of that action, then over time, repeated iteration in war creates a more and more powerful army.
Jack Weatherford
Yes, yes. And they were able to do that for three generations to create an army that was ever expanding, ever changing its tactics and its technology and they got worse at it over time but Genghis Khan was the one who innovated it. He was the best with it and he used to throughout his lifetime and he was getting better over his lifetime with using foreign information, foreign technology, foreign ideas. He just had a genius for that.
Yes, yes. And they were able to do that for three generations to create an army that was ever expanding, ever changing its tactics and its technology and they got worse at it over time but Genghis Khan was the one who innovated it. He was the best with it and he used to throughout his lifetime and he was getting better over his lifetime with using foreign information, foreign technology, foreign ideas. He just had a genius for that.
Military tactics and strategy
Lex Fridman
If we can go back to the horses, you mentioned every soldier had five horses. The reason for that is the horses get tired.
If we can go back to the horses, you mentioned every soldier had five horses. The reason for that is the horses get tired.
Jack Weatherford
Yes.
Yes.
Lex Fridman
And so, you can cover a lot of ground in a single day.
And so, you can cover a lot of ground in a single day.
Jack Weatherford
Yes. Usually, the way the rotation of the horses were, the horse would usually ride for one day and then rest for the next four to five days and then another horse would be riding the next day. One way to measure it is that, later, at the time of the death of Ogedei Khan, the word went from Mongolia to Hungary in six weeks.
Yes. Usually, the way the rotation of the horses were, the horse would usually ride for one day and then rest for the next four to five days and then another horse would be riding the next day. One way to measure it is that, later, at the time of the death of Ogedei Khan, the word went from Mongolia to Hungary in six weeks.
Lex Fridman
Mongolia to Hungary in six weeks.
Mongolia to Hungary in six weeks.
Jack Weatherford
Mm-hmm.
Mm-hmm.
Lex Fridman
So, let’s just imagine this army that’s able to move at such high speeds, does not need to follow roads because it’s used to riding in the open steppe.
So, let’s just imagine this army that’s able to move at such high speeds, does not need to follow roads because it’s used to riding in the open steppe.
Jack Weatherford
Yeah, yeah.
Yeah, yeah.
Lex Fridman
So, you can do all kinds of dynamic movements in encircling a place.
So, you can do all kinds of dynamic movements in encircling a place.
Jack Weatherford
Yes, yes.
Yes, yes.
Lex Fridman
And then, also, one of the other famous things is the feigned retreat that was used continuously. Can you explain how that worked?
And then, also, one of the other famous things is the feigned retreat that was used continuously. Can you explain how that worked?
Jack Weatherford
The Mongols did not fight for honor the way we often think of brave soldiers, Achilles and the Iliad and things like that, they fought for victory. That was the one thing. So, to retreat, to save lives and all, there’s no shame in that. So, the Mongols would often retreat and Genghis Khan, basically, he himself never fought a battle that he thought he could lose and he won every battle he fought. That wasn’t true for every general under him, as we said for Shigi Qutuqu for example, but he won every battle because there was no shame in retreating and in not fighting, not engaging the enemy.
The Mongols did not fight for honor the way we often think of brave soldiers, Achilles and the Iliad and things like that, they fought for victory. That was the one thing. So, to retreat, to save lives and all, there’s no shame in that. So, the Mongols would often retreat and Genghis Khan, basically, he himself never fought a battle that he thought he could lose and he won every battle he fought. That wasn’t true for every general under him, as we said for Shigi Qutuqu for example, but he won every battle because there was no shame in retreating and in not fighting, not engaging the enemy.
However, that also becomes a tactic and that they would send in a small group of soldiers to attack and the Mongols were able to fire, of course, going forward on the horse, they were able to then act like they were defeated and turn but they could still fire backwards which is the Parthian shot which is unusual in the world. Not totally unique but unusual to fire backwards. But the Mongols also could lean down and fire under the neck of the horse so they’re protected, they had many different ways.
So, they’re firing coming, they’re firing going but, usually, the soldiers who are against them would break ranks to chase them. They want to go, they want to get the weapons, they want to kill the Mongols and, if they didn’t immediately break ranks, the Mongols would often start throwing things out like loot from someplace and valuables around and soldiers usually couldn’t resist it.
So, they’d come chasing out after the Mongols, pale male going in every different direction and then they would get to a certain point and, from behind the two hills, the Mongol army would come and slaughter them. Over and over, this tactic worked, it’s like the one with the water. I’m thinking, the people, how can they not know this is what the Mongols are doing, how can they not know that.
Jack Weatherford
How can they not know this is what the Mongols are doing? How can they not know that?
How can they not know this is what the Mongols are doing? How can they not know that?
Lex Fridman
Human nature. There is something that when the forces are retreating-
Human nature. There is something that when the forces are retreating-
Jack Weatherford
You want to follow them. You want to run after them.
You want to follow them. You want to run after them.
Lex Fridman
You want to follow them. You can’t help it. I don’t know what that is. That’s maybe the animalistic, but take that with the ability at high speeds for the Mongols to encircle and attack the flanks. Which there has been many great military historians who have written about the great military forces throughout history, and one of the things you write about and in general is the Mongols don’t get written about almost at all, and don’t get credit for the military tactics and the military genius exhibited through the different strategies. This kind of idea of the feigned retreat and then attacking the flanks that’s been, if not invented and perfected by Genghis.
You want to follow them. You can’t help it. I don’t know what that is. That’s maybe the animalistic, but take that with the ability at high speeds for the Mongols to encircle and attack the flanks. Which there has been many great military historians who have written about the great military forces throughout history, and one of the things you write about and in general is the Mongols don’t get written about almost at all, and don’t get credit for the military tactics and the military genius exhibited through the different strategies. This kind of idea of the feigned retreat and then attacking the flanks that’s been, if not invented and perfected by Genghis.
Jack Weatherford
He really was a military genius. But there were other things too. They didn’t like roads. They just didn’t like roads. So they would often be coming from some direction that nobody ever came from, and the people would be unprepared for that.
He really was a military genius. But there were other things too. They didn’t like roads. They just didn’t like roads. So they would often be coming from some direction that nobody ever came from, and the people would be unprepared for that.
The most famous example is probably in Bukhara. This is a beautiful, wonderful old city, a great place in the world to this day. And they came across the desert. Well, nobody had ever attacked across the desert, so people see dust coming. They think, well, caravan. They don’t even know what’s going on. But it was the direction that was a surprise element in that particular case. So he was able to think in ways that the other people were not thinking yet, and to be able to surprise them.
Lex Fridman
What do you think it again, felt like to have this Mongol armada, the horses? The ground must shake when you have that many horses. What do you think it feels like to be in a town when Genghis Khan’s approaching?
What do you think it again, felt like to have this Mongol armada, the horses? The ground must shake when you have that many horses. What do you think it feels like to be in a town when Genghis Khan’s approaching?
Jack Weatherford
I think the terror was one of the greatest weapons that he had. He cultivated this reputation of ferocity. Not only did he win battles, but he… he didn’t allow people to write about him, as we said, but he encouraged refugees. And when he conquered a city, he always made sure there are plenty of refugees to go to the next city because it’s going to weaken them. It’s going to weaken their food supply, and they’re going to terrorize the people with tales of the millions of people that the Mongols killed with their steel chisel teeth and eating children and all kinds of horrible tales. Genghis Khan encouraged it.
I think the terror was one of the greatest weapons that he had. He cultivated this reputation of ferocity. Not only did he win battles, but he… he didn’t allow people to write about him, as we said, but he encouraged refugees. And when he conquered a city, he always made sure there are plenty of refugees to go to the next city because it’s going to weaken them. It’s going to weaken their food supply, and they’re going to terrorize the people with tales of the millions of people that the Mongols killed with their steel chisel teeth and eating children and all kinds of horrible tales. Genghis Khan encouraged it.
This is propaganda. It’s terrorism of a mental sort to weaken the enemy. And so when you hear, or even if you know they’re coming, you see the dust, you hear the roar that comes with all those horses and the trembling of the earth, it must’ve been truly terrifying.
Lex Fridman
So psychological warfare was a part of the whole process, but as I understand, there was always an offer for the towns and the territories being attacked for them to surrender peacefully without the loss of life.
So psychological warfare was a part of the whole process, but as I understand, there was always an offer for the towns and the territories being attacked for them to surrender peacefully without the loss of life.
Jack Weatherford
Yes.
Yes.
Lex Fridman
And the alternative would be the near complete loss of life. Can you speak to that?
And the alternative would be the near complete loss of life. Can you speak to that?
Jack Weatherford
Genghis Khan had a precise system. Exactly. He sent in envoys first to explain to the people a little bit about the Mongols. Already much was known, but to explain to them that if they surrendered, all the lives would be spared and they could continue in their professions. It’s just that now the rulers would be the Mongols. They would have to pay the taxes, and usually it would be the same taxes they’d paid before, but now they would go to the Mongols. That was the general system. And because you only have 100,000 soldiers, you can’t leave a detachment there. So you’re going to leave the local people in charge to run their country or their city and their area, the way they have done in the past. He was absolutely faithful to that.
Genghis Khan had a precise system. Exactly. He sent in envoys first to explain to the people a little bit about the Mongols. Already much was known, but to explain to them that if they surrendered, all the lives would be spared and they could continue in their professions. It’s just that now the rulers would be the Mongols. They would have to pay the taxes, and usually it would be the same taxes they’d paid before, but now they would go to the Mongols. That was the general system. And because you only have 100,000 soldiers, you can’t leave a detachment there. So you’re going to leave the local people in charge to run their country or their city and their area, the way they have done in the past. He was absolutely faithful to that.
And one episode in the north of Persia, modern Iran, his son-in-law, Toquchar, he violated that and was stealing and looting from the people who had surrendered. Genghis Khan called him in and he stripped him of his rank, and he said, “The next city, you go first as a common soldier.” And of course, he was killed in the next battle. I don’t know the name of the daughter, unfortunately. I’ve tried to figure that out. But anyway, it was a close relative to him, and he was killed in the next by violating this law. So that was the law.
If the city fought and the Mongols won, they did not kill everyone. What they did was they killed all the leaders. They felt like the elite had not served them well. And they usually kill the army, because they couldn’t incorporate the army into their own, the army had failed. But the one thing that they valued were all the artisans, everybody who had a skill. And that skill could be making a pot. It could be hammering out a metal plate. It can be weaving carpets, it can be translating or just reading and writing. Every person with a skill was spared.
So the killing of the people who were defeated wasn’t so severe. What was truly severe was if you surrendered, and many of them did, and then they knew they would not be harmed. So they’re not harmed. The Mongols go on. The Mongols are hundreds of miles away and all of a sudden, forget about the Mongols. Chinggis Khan sent word they were supposed to send so many cows or sheep to help. Forget about the Mongols. They’re far away. It’s a… No. He stopped, he returned, he conquered the city, and he killed everyone. That’s the way it worked.
Lex Fridman
So the most drastic slaughter happens when there’s an agreement and then betrayal.
So the most drastic slaughter happens when there’s an agreement and then betrayal.
Jack Weatherford
Yes. And as it turned out, I would say it was more the Middle East of what we call around Iran and Afghanistan, where these were the worst cases. I would say only in Afghanistan did sometimes the emotion of the slaughter take over in an unfortunate way. He had a grandson whom he loved very much, and that grandson traveled with him, and he had the happy childhood that had not had. And I think Chinggis Khan just loved that about him.
Yes. And as it turned out, I would say it was more the Middle East of what we call around Iran and Afghanistan, where these were the worst cases. I would say only in Afghanistan did sometimes the emotion of the slaughter take over in an unfortunate way. He had a grandson whom he loved very much, and that grandson traveled with him, and he had the happy childhood that had not had. And I think Chinggis Khan just loved that about him.
But in Afghanistan, he was sent off to conquer the valley of Bamiyan where the great Buddhas are actually. He was sent to Bamiyan, and as it says in the Persian history, the thumb of fate fired the arrow that shot him down. He was killed. And for Chinggis Khan, he had never lost a family member. Not one. None of his sons, none of his grandsons in battle, he had not lost them, and now to lose the most valuable grandson you have, the one that’s your pride and joy in so many ways.
So he called the father, his own son, to him and did not tell him, did not announce it to the public. And the son came and the son didn’t know why he was being summoned. And Chinggis Khan said, “You have to tell me that you will not cry or moan when I tell you this, but your son is no more.” And the father was… No one was allowed to moan. No one was allowed to cry, no one was allowed to do anything. You just, he said, “Make them cry.” He came down on the people of Afghanistan so harshly. And it went on for weeks and weeks, the killing in Afghanistan. And then it just wore itself out. He recognized that he had allowed his emotions to overcome practicality and the slaughtering of these people should stop. And so he did.
But that’s the only time I know of that he really kind of lost control of his own emotions. It’s something we can all understand, but his response was truly extreme of we will not cry, we will not mourn. They will cry. They will mourn.
Lex Fridman
So that goes against the cold, rational way he approached war, which is peace is offered, and then betrayal is punished.
So that goes against the cold, rational way he approached war, which is peace is offered, and then betrayal is punished.
Jack Weatherford
I should add, he did not slaughter the people in the peaceful towns. What happened was the killing of what people thought was the heir, and he well may have been, of Chinggis Khan, the killing of him revitalized a lot of people’s hopes and a lot of cities revolted. The ones who did not revolt were not killed. But the cities who revolted, he killed them all. There was a mass slaughter.
I should add, he did not slaughter the people in the peaceful towns. What happened was the killing of what people thought was the heir, and he well may have been, of Chinggis Khan, the killing of him revitalized a lot of people’s hopes and a lot of cities revolted. The ones who did not revolt were not killed. But the cities who revolted, he killed them all. There was a mass slaughter.
Wars of conquest
Lex Fridman
There are estimates that Ghengis Khan and his Mongol Empire were responsible for an estimated 40 million deaths, approximately 10% of the world’s population. To put this number in the perspective of the modern day, that would be equivalent to killing about 800 million people in today’s population. How should we think about the brutality of numbers like these?
There are estimates that Ghengis Khan and his Mongol Empire were responsible for an estimated 40 million deaths, approximately 10% of the world’s population. To put this number in the perspective of the modern day, that would be equivalent to killing about 800 million people in today’s population. How should we think about the brutality of numbers like these?
Jack Weatherford
The number itself is difficult to deal with. Millions of people were killed. For every family that lost someone, it’s a total loss. It doesn’t matter what the number is, it’s a tremendous loss. And there was tremendous loss of life, as in every war.
The number itself is difficult to deal with. Millions of people were killed. For every family that lost someone, it’s a total loss. It doesn’t matter what the number is, it’s a tremendous loss. And there was tremendous loss of life, as in every war.
I don’t think we should judge him any differently than other conquerors in history and other countries today that fight wars, including our own country. Whatever we are willing to permit our country to do, we should be able to understand why Chinggis Khan or the Mongols did it. You look today in the world, people are killing children, women, civilians, every day. Every day. And it’s always in the name of something, in the name of peace or in the name of God or in the name of our nation. There are always reasons for the killing. And the United States has certainly involved with that. Supplying the weapons for bombing people, invading Afghanistan, invading, fighting in Iraq, fighting in Syria. The United States is very involved in that. And it’s always, oh, but we’re defending democracy. Yeah, we brought a hell of a lot of democracy to Afghanistan. We killed a lot of people.
You can even look back to World War II, our great moment of democracy and bringing freedom and democracy to Germany. We dropped atomic bombs on Hiroshima and Nagasaki. Those were not military targets. We were not doing anything strategic against the country other than terrorizing the country by killing women and children. That’s America. That’s us. My father fought in that war. In fact, he fought in all. He fought in Vietnam. He fought in that war, and he fought in Korea. And he was a good American. I mean, there was nothing wrong with it.
And I don’t even condemn America, but I’m saying, how can we condemn one set of people for doing it and then excuse it in ourselves? But we tend to do that. We, especially barbarian people, people from steppe for example, we tend to demonize them. Or any enemy we have, we tend to demonize them.
Lex Fridman
You said a lot of interesting things there. One is just the very nature of war. That war is hell. That sometimes things like dropping the atomic bomb, which is an act of essentially terror, in the same style as Genghis Khan, in an attempt to prevent further war.
You said a lot of interesting things there. One is just the very nature of war. That war is hell. That sometimes things like dropping the atomic bomb, which is an act of essentially terror, in the same style as Genghis Khan, in an attempt to prevent further war.
Jack Weatherford
It’s a justification. People are always fighting for peace, always fighting for peace. World war I was to make the world safe for democracy and peace. And then World War II. But what happened? We went to war in Korea, we went to war in Vietnam. We bombed Cambodia, we bombed Laos, we bombed Afghanistan, we bombed Syria, we bombed Iraq. We’re always fighting for… And I’m not a pacifist. I am not, I grew up surrounded with soldiers and I’m not a pacifist, but I try to be a realist that all nations kill, it happens everywhere.
It’s a justification. People are always fighting for peace, always fighting for peace. World war I was to make the world safe for democracy and peace. And then World War II. But what happened? We went to war in Korea, we went to war in Vietnam. We bombed Cambodia, we bombed Laos, we bombed Afghanistan, we bombed Syria, we bombed Iraq. We’re always fighting for… And I’m not a pacifist. I am not, I grew up surrounded with soldiers and I’m not a pacifist, but I try to be a realist that all nations kill, it happens everywhere.
Lex Fridman
So can we universally also then, in the way you’re passionately criticizing wars of the 20th century, can we also criticize Genghis Khan and Alexander the Great and the wars fought by Caesar and others in the Roman Empire? That they’re essentially wars of conquest and in some human way were not necessary or were not defensive. They’re just part of this human drive to expand, to explore, and to accumulate power.
So can we universally also then, in the way you’re passionately criticizing wars of the 20th century, can we also criticize Genghis Khan and Alexander the Great and the wars fought by Caesar and others in the Roman Empire? That they’re essentially wars of conquest and in some human way were not necessary or were not defensive. They’re just part of this human drive to expand, to explore, and to accumulate power.
Dan Carlin
Maybe this is a good place to also talk about somebody I respect a lot, Dan Carlin of a Hardcore History podcast. He did an amazing series on Genghis Khan and the Mongols called Wrath of the Khans. I recommend people go listen to it. He had a lot of interesting ideas there. One of them, he presented the idea of historical arsonists. So referring to figures who cause immense destruction, but also paved the way for new developments and progress, basically making this complicated case that destruction often in history paves the way for progress. What do you think about this idea?
Jack Weatherford
Creative destruction, it certainly works in some aspects of life, even with ourselves. For example, if we can creatively destroy some of our habits and build new ones, it sometimes works or we can destroy relationships that we’re in order to create new ones, it can work. When you start applying it to world history, it does become a little bit more difficult.
Creative destruction, it certainly works in some aspects of life, even with ourselves. For example, if we can creatively destroy some of our habits and build new ones, it sometimes works or we can destroy relationships that we’re in order to create new ones, it can work. When you start applying it to world history, it does become a little bit more difficult.
I certainly think that these episodes create great changes. You can see great changes that happened because of the Mongol Empire. Now, whether or not that’s a good reason for the Mongol Empire having happened, it seems like a bit of a stretch for me. The Mongols helped to unify many countries. You can think Korea had been three, basically kingdoms, push them together. Everything that you see in China today was a part of the Mongol Empire. They put together North China, South China, Tibet, Manchuria. It was a little bit larger under the Mongols. Even Russia with so many little kingdoms and Duchies and Dukedoms, and the center had been in the Ukraine and Kiev, and they shifted the focus out of Ukraine and more towards into what we call Russia now. And they began the process of the unification and had a great impact on the country.
So in a way, it’s a new creation. Yes, it does arrive out of the destruction, but also I think we need to look where does the destruction come from? And it often comes because the powers around them have been so debilitated and so corrupted, and so decayed of their own lack of moral fiber, that it was easy to conquer them.
Kublai Khan finally conquered all of China. He was conquering a decayed dynasty. When the Mongols conquered Baghdad and overthrew the Caliph, they were conquering a very decayed institution. No one likes war, and I certainly don’t like war, but I’m not 100% against it. I think that there are times that people are going to do it for their own protection, if nothing else, or of their family, and it’s justified in that sense to themselves. It may not be justified in a world sense. I just make the case for being tolerant of what the Mongols did if we can tolerate what the Americans did. And I am American through and through, there’s no question about that, but we overlook all of our things that we did.
That’s interesting, for example, in Afghanistan. We were there for some 20 years. We had made the Taliban stronger before when they were fighting against the Russians, and then we kicked them out, and then they kicked us out. But some of the Taliban leaders are from the Jadran clan, the descended from Jamukha family, from his clan. This is what I mean when I say that The ramifications from that time are still with us, and we don’t even see it.
And when Saddam Hussein went on television for the last time in Iraq to plead with his people, he said, “The Mongols,” meaning America, “The Mongols have returned. The Mongols have returned.” And he said, “The Americans are just the new…” I can see it. I don’t accept it, but I can see how people think. If we can be honest with ourselves and strip away our own lies about ourselves, then perhaps we will be more ethical in our dealings with other people.
Lex Fridman
And there’s effects that you could talk about. I mean, the unification of China, Mongols or otherwise, is a very important step in the history of China that permeates to today. And then there’s a lot of stuff that we’ll talk about, the ideas of religious freedom, the postal network, the trade routes, all of this. There’s a lot of progressive consequences of the Mongol conquest and the Mongol Empire. We’ll talk about that. But let’s linger on the heavier topic for a little bit longer.
And there’s effects that you could talk about. I mean, the unification of China, Mongols or otherwise, is a very important step in the history of China that permeates to today. And then there’s a lot of stuff that we’ll talk about, the ideas of religious freedom, the postal network, the trade routes, all of this. There’s a lot of progressive consequences of the Mongol conquest and the Mongol Empire. We’ll talk about that. But let’s linger on the heavier topic for a little bit longer.
We were talking about Dan Carlin, he was critical of your work a little bit, showing it respect, but also a little bit critical, as being a bit too… Emphasizing and focusing a lot on the positive impacts correctly and accurately, but not giving enough air time or describing the brutality of the killing, the hell that is war. Can you understand his criticism?
Jack Weatherford
Guilty. I’m guilty.
Guilty. I’m guilty.
Lex Fridman
[inaudible 02:01:15]
[inaudible 02:01:15]
Jack Weatherford
Carlin’s a very smart man. I respect him very much. I like him tremendously. And he’s right. But that is not what I want to stress. It’s not that I want to deny the killing. It’s not that I want to deny the warfare, but that’s pretty much the same everywhere in the world, and how much do we need to say about how the wall was broken down, how this unit was defeated, and all. No, it’s what comes afterwards. Just as the story of our life begins far earlier than we are born, the story of our life goes on for a long time afterwards.
Carlin’s a very smart man. I respect him very much. I like him tremendously. And he’s right. But that is not what I want to stress. It’s not that I want to deny the killing. It’s not that I want to deny the warfare, but that’s pretty much the same everywhere in the world, and how much do we need to say about how the wall was broken down, how this unit was defeated, and all. No, it’s what comes afterwards. Just as the story of our life begins far earlier than we are born, the story of our life goes on for a long time afterwards.
If you have a nation of 1 million people and you are ruling over hundreds of millions of people, hundreds of millions of people, China, Russia, the Middle East, you do not do that through warfare. You conquer them initially through warfare, but you do not rule them through warfare. You’ve got to be offering something that they want, something that they like. And all the things you’ve mentioned from the trading system, the postal system, the religious freedom, the rights of women, the rights of minorities, these were things that people responded to. So the world benefited tremendously from the life of Chinggis Khan. But all we want to talk about, and I don’t deny it, is the conquest part. Okay, that’s 20 years. It went on for another 150 years. There’s more to the story than just conquest.
Lex Fridman
There is a point that you correctly identify, and you’ve also written about Native Americans and so on, that history does seem to be written by the non-barbarians. But in reality, history is not divided in this way. And the barbarians are not these crude, brutal, plain, simple people. That there is a sophisticated, deep culture within them as well. All the different kinds of peoples that came from the steppe.
There is a point that you correctly identify, and you’ve also written about Native Americans and so on, that history does seem to be written by the non-barbarians. But in reality, history is not divided in this way. And the barbarians are not these crude, brutal, plain, simple people. That there is a sophisticated, deep culture within them as well. All the different kinds of peoples that came from the steppe.
Jack Weatherford
Yes. I guess if there’s one thing that I try to do in my career of writing, it is to get us to recognize the importance of tribal people in the history of the world. We tend to have two categories for them. They’re barbarians who kill people and eat one another, or they’re victims and we should feel sorry from them and nostalgic about everything about them, and maybe wear some of their beads or some of their clothing to show how much we sympathize with their suffering. That’s the two roles for tribal people.
Yes. I guess if there’s one thing that I try to do in my career of writing, it is to get us to recognize the importance of tribal people in the history of the world. We tend to have two categories for them. They’re barbarians who kill people and eat one another, or they’re victims and we should feel sorry from them and nostalgic about everything about them, and maybe wear some of their beads or some of their clothing to show how much we sympathize with their suffering. That’s the two roles for tribal people.
But I’m trying to show them in a different light. That they conquered. Yes, they were conquerors, but they also created great things in the history of the world. And that the Mongol Empire was really the first modern empire in the way that I’m putting together that story. And Chinggis Khan was the genius behind that, who created this idea that there could be one world in which there would be one set of supreme law, but all people could follow their own law.
You could have any religion you wanted, but ultimately you had to obey the great ethics of the sky. And there were things like that about his vision that I think very few people in history had, a vision. And I look around the world today, and in my lifetime, since the time of Roosevelt’s death, I look around, I don’t see much vision. I see lots of slogans, lots of talk, policy papers. Oh my God, we can produce it. Where’s the vision? It’s always, we’re going to have peace and we’re going to have a better life and vote for me or vote for my party and we’re really for the people. What the heck are they talking about? There is no vision there. So what is this country? What should this country be? What is this world? How should we… No. No vision.
Lex Fridman
Well, those figures, I mean, they’re rare through history. The legendary figures that come along that have vision, but are able to capture the public imagination and heart and mind with the vision, but also have the skill to execute and implement it, and all of those things combined, and have the mental fortitude not to be corrupted by success along the way. All of those things.
Well, those figures, I mean, they’re rare through history. The legendary figures that come along that have vision, but are able to capture the public imagination and heart and mind with the vision, but also have the skill to execute and implement it, and all of those things combined, and have the mental fortitude not to be corrupted by success along the way. All of those things.
Jack Weatherford
That’s very rare in history. Very rare.
That’s very rare in history. Very rare.
Religious freedom
Lex Fridman
And when they come along, they change the direction of history. If we could linger on some of these world-defining ideas. Religious freedom. It’s just surprising and incredible that Genghis Khan was able to enforce, inspire the value of religious freedom throughout all of these disparate lands for whom religion was a very powerful force. So can you speak to that?
And when they come along, they change the direction of history. If we could linger on some of these world-defining ideas. Religious freedom. It’s just surprising and incredible that Genghis Khan was able to enforce, inspire the value of religious freedom throughout all of these disparate lands for whom religion was a very powerful force. So can you speak to that?
Jack Weatherford
Some empires in history, and some rulers have been tolerant of various groups. I mean, Rome to some extent was reasonably tolerant of different sects and religions, not of the Christians, but reasonably. But what happened with Genghis Khan, the first campaign he had outside of Mongolia was for the Uyghur people who lived in Western China. They at that time were being ruled by, actually we had mentioned before, the Naiman king, Tayang Khan. His son Kuchlug had fled. No good, worthless, well son. Kuchlug had fled into what is today the area around Kyrgyzstan. They ruled over the Uyghur people. He had been a Christian. The Naiman had been a Christian tribe, but he converted to Buddhism.
Some empires in history, and some rulers have been tolerant of various groups. I mean, Rome to some extent was reasonably tolerant of different sects and religions, not of the Christians, but reasonably. But what happened with Genghis Khan, the first campaign he had outside of Mongolia was for the Uyghur people who lived in Western China. They at that time were being ruled by, actually we had mentioned before, the Naiman king, Tayang Khan. His son Kuchlug had fled. No good, worthless, well son. Kuchlug had fled into what is today the area around Kyrgyzstan. They ruled over the Uyghur people. He had been a Christian. The Naiman had been a Christian tribe, but he converted to Buddhism.
Well, his subjects were Muslim, and he outlawed the Muslim religion, and he made all kinds of things happen. So the Uyghurs sent a delegation to Genghis Khan. At this time they knew that the emperors of China were too weak to protect them, so they sent delegation to Genghis Khan and asked him to come and save them from him. And he did. He sent down a detachment. He didn’t actually go himself. He said a detachment down there, they drove Kuchlug from power. Kuchlug fled down towards Pakistan, in that direction, they caught up with him. They killed him. That’s what the Mongols did.
And then Genghis Khan made the first law that he ever made for people outside of Mongolia. Up to this point, it’s been tribal law. And he saw, as we had mentioned before, the tribes were mostly fighting over women. So you outlaw the kidnapping of women, you outlaw the sale of women, and you cut down on a lot of the feuding. But he saw that “civilized” people fought a lot over religion. They weren’t fighting over women, they were fighting over religion. And so he made the law.
Now, this was very interesting, we talk about religious freedom. Religious freedom comes in many forms. One form is to allow institutions to do what they want. So we’re going to allow the Mormons and the Catholics and the Jews and the Muslims each to do what they want in the organized churches that they have. His law was not that. It presumed that. It allowed that, but he said, every person has the right to choose their religion. No one can stop them. No one can force them. The idea that it was individual choice, no one in history had ever thought of that, that it belonged to the person.
Lex Fridman
I mean, that’s a really, really powerful statement.
I mean, that’s a really, really powerful statement.
Jack Weatherford
Yes.
Yes.
Lex Fridman
That alone, I mean, that’s why you talk about Thomas Jefferson being deeply inspired by Genghis Khan. That religious freedom, yes, of the individual, but it’s such a powerful illustration, manifestation of just individual freedom period. If you in the world, in history, are allowed to practice any religion you want, I mean, that is one of the biggest way to say that the individual is fundamentally free in a society.
That alone, I mean, that’s why you talk about Thomas Jefferson being deeply inspired by Genghis Khan. That religious freedom, yes, of the individual, but it’s such a powerful illustration, manifestation of just individual freedom period. If you in the world, in history, are allowed to practice any religion you want, I mean, that is one of the biggest way to say that the individual is fundamentally free in a society.
Jack Weatherford
Yes. It was a great source of power for him also. I don’t say that he did this because of some ideological reason. Just like he didn’t outlaw the kidnapping of women for ideological reasons. He didn’t come to it through studying ideas of moral right. He came to it through practical experience of life. His mother was kidnapped, his wife was kidnapped. He knew that that was a crime against every ethics that you can think of and every form of morality. That’s why he did it, not for ideological reasons, but practical reasons. It hurt people. It hurt people.
Yes. It was a great source of power for him also. I don’t say that he did this because of some ideological reason. Just like he didn’t outlaw the kidnapping of women for ideological reasons. He didn’t come to it through studying ideas of moral right. He came to it through practical experience of life. His mother was kidnapped, his wife was kidnapped. He knew that that was a crime against every ethics that you can think of and every form of morality. That’s why he did it, not for ideological reasons, but practical reasons. It hurt people. It hurt people.
It was the same with religion. He gave this right to everybody because it was going to be their own personal right to keep them from being hurt. And then that gave him tremendous support from minorities of many types. And so they flocked to him. Minorities after that, this was a minority effort of the Muslim Uyghurs to come to him, many people flocked to him for the same reason. For that kind of religious freedom.
Lex Fridman
So that religious freedom and also the other things you mentioned, they create a stable society and that allows him with a small army to administer a large empire.
So that religious freedom and also the other things you mentioned, they create a stable society and that allows him with a small army to administer a large empire.
Jack Weatherford
And also, I will say on a more practical political way of thinking, he recognized the power of having a balance of power of Shiite and Sunni. That both are going to be allowed, equal rights. One is not dominant over the other. And Christians and Jews. Well, that keeps the society from fragmenting against him or uniting against him, and it’s a kind of fragmentation that he’s taken advantage of. I don’t think that was his main reason, but I do think he was quite aware of that. That you give every religion the right, and unfortunately, the only religion he didn’t recognize as a religion was Confucianism. He said, “What do they do?” The Taoists can do magic on the earth and they can give people magic formulas and to cure, or they have all this kind of stuff going on. Well, what did the Confucianist do? So still the people could be Confucianist. That was okay, but he didn’t expend all the tax-free rights.
And also, I will say on a more practical political way of thinking, he recognized the power of having a balance of power of Shiite and Sunni. That both are going to be allowed, equal rights. One is not dominant over the other. And Christians and Jews. Well, that keeps the society from fragmenting against him or uniting against him, and it’s a kind of fragmentation that he’s taken advantage of. I don’t think that was his main reason, but I do think he was quite aware of that. That you give every religion the right, and unfortunately, the only religion he didn’t recognize as a religion was Confucianism. He said, “What do they do?” The Taoists can do magic on the earth and they can give people magic formulas and to cure, or they have all this kind of stuff going on. Well, what did the Confucianist do? So still the people could be Confucianist. That was okay, but he didn’t expend all the tax-free rights.
See, that was another thing. He dropped all taxes on religious institutions, all types. But since the Confucianists were not necessarily classified. But then of course eventually that was abused so much because the religions were then getting everybody did not own a property. You can still use it. You can still farm your land, but it’s ours. And now you don’t have to pay taxes on it. You just give us some money. Got abused. But it started off as a good idea.
Lex Fridman
And genuinely, as I understand, maybe you can correct me, of course, there’s the practical aspect of those policies, but he himself was just curious about the different religions as well, as I understand. So he never chose any religion except the one from which he came. I guess, can you describe what he believed spiritually himself?
And genuinely, as I understand, maybe you can correct me, of course, there’s the practical aspect of those policies, but he himself was just curious about the different religions as well, as I understand. So he never chose any religion except the one from which he came. I guess, can you describe what he believed spiritually himself?
Jack Weatherford
It’s interesting, we said after the death of [inaudible 02:12:49], his grandson in Bamiyan and the slaughter that followed that, he went through a new phase in which he summoned religious scholars of all sorts of famous Chung Chang from China, who I despise. But anyway, he came with all of his magic formulas for things, and then a bunch of various Muslim leaders came. So Chinggis Khan was exploring all these different religions, and not just in a simple way. He had organized public lectures from these people and public debates, not antagonistic debates, but discussions among groups of people who hated each other and would never discuss anything. And suddenly this powerful man summons them and he has to say, “Okay, well explain your religion and explain yours.” And even sometimes you can’t just explain it in terms of your own scripture. What do you say to the people who believe a different?
It’s interesting, we said after the death of [inaudible 02:12:49], his grandson in Bamiyan and the slaughter that followed that, he went through a new phase in which he summoned religious scholars of all sorts of famous Chung Chang from China, who I despise. But anyway, he came with all of his magic formulas for things, and then a bunch of various Muslim leaders came. So Chinggis Khan was exploring all these different religions, and not just in a simple way. He had organized public lectures from these people and public debates, not antagonistic debates, but discussions among groups of people who hated each other and would never discuss anything. And suddenly this powerful man summons them and he has to say, “Okay, well explain your religion and explain yours.” And even sometimes you can’t just explain it in terms of your own scripture. What do you say to the people who believe a different?
So he was exploring, but no, he never changed at all. He was an animist, we would say. That’s about the only term we know to use. Early in life he worshiped that mountain where he took refuge several times. Burkhan Khaldun, Burkhan Khaldun was the great refuge of his life. He would go to the top, he would pray. He would take off his hat. He would take off his belt. He would stand there before the sky and pray. Also later on, actually, this became rather dramatic. He would sometimes go away to pray, should we invade these people? So all of the subjects are waiting to hear what’s God going to tell Chinggis Khan when he goes up the mountain? There are episodes like that, but he was very sincere.
But I think what happened, the Mongols have so many spirits in the water, the mountains, everything around them and you have to know them personally and pray to them and know what they like and don’t like. And should you sing to them or should you offer some milk products or what do you do? You have to know them. Well, you get away from Mongolia, and this was a problem in China, they didn’t know the spirits. This caused great consternation for the Mongols. You’ve got a land here and the spirits don’t like us. They’re hostile lands. We don’t even know who they are. We don’t know these spirits in China. It took a long time. And so gradually, Chinggis Khan, he moved from just the spirit of the mountain that he worshiped, which remained his main focus of worship his whole life, he removed that to the sky. That was the one universal spirit. It was everywhere in the world. The sky was the same for every people.
And so for the Mongolians in their language, the word for sky and the word for heaven and the word for God and the word for weather are all the same, Tenger. Or Mönkh Khökh Tenger in the case of the eternal sky when they’re talking about it in a religious terms, the eternal blue sky. So he became more universalistic in this animist vision of the world. So then the sky could embrace all religions, all religions, and all people were trying to attain the same form of enlightenment. Well…
Jack Weatherford
… to attain the same form of enlightenment. Well, enlightenment is too specific a word, but the same form of moral life and guidance from the sky. He felt that each person knew morality, each person could communicate it, know morality within themselves. They didn’t have to just be taught it by somebody from a book. And in fact, as one of his grandson, Mongke Khan said, “You people,” talking to all the others, to the Christians, the Jews, the Muslims, the Daoists, said, “You people have your scriptures and you don’t live by them. We have our spirits and our shamans and our drums, and we live by them” and I think it’s true.
… to attain the same form of enlightenment. Well, enlightenment is too specific a word, but the same form of moral life and guidance from the sky. He felt that each person knew morality, each person could communicate it, know morality within themselves. They didn’t have to just be taught it by somebody from a book. And in fact, as one of his grandson, Mongke Khan said, “You people,” talking to all the others, to the Christians, the Jews, the Muslims, the Daoists, said, “You people have your scriptures and you don’t live by them. We have our spirits and our shamans and our drums, and we live by them” and I think it’s true.
Lex Fridman
Throughout this conversation, it’s just blowing my mind that the kid from the Mongols that lost everything, just had the hardest of lives is now, yes, a military genius, but also this kind of sage-type character, to understand the value of religious freedom. I mean, there is a cynical way to see all these things, because he did awfully a lot of things that look like he’s a feminist. And you’re saying, “Well, the cynical way to see that is what he saw the value of promoting women in positions of power because they create a more stable society, and there’s less power, struggles,” all that. But the reality is, there’s a lot of things that look awfully progressive about the things he’s implemented, and they stayed.
Throughout this conversation, it’s just blowing my mind that the kid from the Mongols that lost everything, just had the hardest of lives is now, yes, a military genius, but also this kind of sage-type character, to understand the value of religious freedom. I mean, there is a cynical way to see all these things, because he did awfully a lot of things that look like he’s a feminist. And you’re saying, “Well, the cynical way to see that is what he saw the value of promoting women in positions of power because they create a more stable society, and there’s less power, struggles,” all that. But the reality is, there’s a lot of things that look awfully progressive about the things he’s implemented, and they stayed.
Jack Weatherford
I’m not trying to say it in modern terms. When you have one million people, you’ve got to use every one. And the men are fighting. And so he left women to administer a lot of things inside the country, the economy in particular, and some of the ancillary Turkic kingdoms around the Mongols, such as the Ongud, the Qarluq, and the Uyghur, even, were administered by his daughters, primarily. And then his wives were in charge of administering the land of Mongolia itself, and handling the economy.
I’m not trying to say it in modern terms. When you have one million people, you’ve got to use every one. And the men are fighting. And so he left women to administer a lot of things inside the country, the economy in particular, and some of the ancillary Turkic kingdoms around the Mongols, such as the Ongud, the Qarluq, and the Uyghur, even, were administered by his daughters, primarily. And then his wives were in charge of administering the land of Mongolia itself, and handling the economy.
So he was using the women, but in a very practical way, but it wasn’t necessarily in our ideological way. I think it’s the same with the environment. I’m not trying to say he was environmentalist in our modern way, but he passed very strict laws about the use of water, and also about not using water, that you couldn’t move water into an area to irrigate it. That was violating the earth and violating the water.
So they think, a lot of the historians, they think the Mongols are so stupid, they let the irrigation system be destroyed. No, it takes more work to destroy an irrigation system than it does to create it. They destroyed those systems out of a policy, and that was, “This is going to return to pasture land.”
This lasted, Kublai Khan was the one who changed that, actually, and then started allowing for more irrigation and the movement of water and things. But Chinggis Khan, we can’t use these modern terms of a human rights crusader, or that I’m trying to say he’s a Democrat, the modern sense, or environmentalist, or a feminist. But all of this was a part of it. Another part was the protection of envoys. He said, “Every envoy, every ambassador, every messenger is protected from arrest, from torture, and from killing. And if you kill one of ours, we will wipe you out.”
And in 1240, that was the destruction of Kiev. This is after Chinggis Khan already know there’s Ogedei Khan, his son, the happy, happy drunk. Ogedei Khan’s army had come there under Subutai, the greatest general of the history of the world, I would say, Subutai, person who’s not … It wasn’t Chinggis Khan for the military part. He was the greatest strategist for organizing everything together. But the military part was Subutai. So Subutai had been there, and they sent in an ambassador who happened to be a woman. Now, some of the western sources say a daughter of Chinggis Khan. I have no evidence of that, and I don’t quite believe it, but maybe she was kin to him or something. Some say she was a daughter of Chinggis Khan. Others say she was a witch. The people of Kiev decided she was a witch and killed her. Okay. That’s it. That’s it. Kiev was destroyed for killing a Mongol envoy.
Lex Fridman
The envoy is a method of communication.
The envoy is a method of communication.
Jack Weatherford
Yes.
Yes.
Lex Fridman
And diplomacy.
And diplomacy.
Jack Weatherford
Yes.
Yes.
Lex Fridman
And so if you destroy that method of communication or disrespect it in any way-
And so if you destroy that method of communication or disrespect it in any way-
Jack Weatherford
Exactly.
Exactly.
Lex Fridman
… and that sends a signal to everybody else. We send an envoy, you respect it.
… and that sends a signal to everybody else. We send an envoy, you respect it.
Jack Weatherford
That’s why these plans, I say that the making of the modern world, most of the ideas have, we accept the idea. We don’t do the practice. All of us accept, today, diplomatic freedom. Diplomats are killed around the world yearly. We accept the idea of female equality and emancipation of every way, but in fact, they’re enslaved in many parts of the world today. We accept the idea of religious freedom, oh, but not those people. Theirs isn’t good. Their religion isn’t right. But our religion, we will tolerate them, but they got to be more like … No. We only say these things, but the world still hasn’t achieved some. And he did achieve these within his empire in his time, he achieved those.
That’s why these plans, I say that the making of the modern world, most of the ideas have, we accept the idea. We don’t do the practice. All of us accept, today, diplomatic freedom. Diplomats are killed around the world yearly. We accept the idea of female equality and emancipation of every way, but in fact, they’re enslaved in many parts of the world today. We accept the idea of religious freedom, oh, but not those people. Theirs isn’t good. Their religion isn’t right. But our religion, we will tolerate them, but they got to be more like … No. We only say these things, but the world still hasn’t achieved some. And he did achieve these within his empire in his time, he achieved those.
Trade and the Silk Road
Lex Fridman
So one of the things we’ve mentioned, but I think is really, really fascinating and maybe in a measurable impact that Chinggis Khan had is on trade, and you could say a lot of stuff, but basically establishing a unified trade network that spanned, I don’t know how many thousands of kilometers, and there’s a lot of interesting things that were done to enable that trade. One is providing safety and security of not just the envoys, like we mentioned, for communication in the military context, but for the merchants. Can you speak to the what Chinggis Khan did for the trade network? Connected to the Silk Road, as an example?
So one of the things we’ve mentioned, but I think is really, really fascinating and maybe in a measurable impact that Chinggis Khan had is on trade, and you could say a lot of stuff, but basically establishing a unified trade network that spanned, I don’t know how many thousands of kilometers, and there’s a lot of interesting things that were done to enable that trade. One is providing safety and security of not just the envoys, like we mentioned, for communication in the military context, but for the merchants. Can you speak to the what Chinggis Khan did for the trade network? Connected to the Silk Road, as an example?
Jack Weatherford
Nomads in general are interested in trade, and throughout most of history, they have been the traders who carried the goods from one city to another or one oasis to another. And so the Mongols were also extremely interested and extremely dependent. They could create very little in their home country. They couldn’t grow hardly anything, and they didn’t have the technological skills for most of the crafts. So they’re very dependent on trade.
Nomads in general are interested in trade, and throughout most of history, they have been the traders who carried the goods from one city to another or one oasis to another. And so the Mongols were also extremely interested and extremely dependent. They could create very little in their home country. They couldn’t grow hardly anything, and they didn’t have the technological skills for most of the crafts. So they’re very dependent on trade.
Well, they raised the status of merchants very high. This was particularly a problem in the Chinese world. It wasn’t so much in the Christian or the Muslim world, but certainly in the Chinese world, where merchants were considered extremely low. And all of a sudden he raises them up above scholars. They’re going to have certain rights. For example, they get to be taxed one time. Whatever the national tax is, that’s it. They’re not taxed every time they stop in some new town.
And he created a set of what we would call rest houses, or recuperation centers, where they could get fresh horses, they could get food, they could deposit their money and get paper receipts that could be used anywhere in the empire. They were guaranteed protection. If they had to pass to an area where it might be dangerous, then a small group, a squad of men and horses would go with them. So trade was extremely important. And then the Mongols also, they supported trade in a very odd way, and that is the merchants would come in, and they would ask for an outrageous price for some goods, much more than they should get, waiting for the Mongols to bargain them down. The Mongols would say, “I’ll give you much more than that.”
And his son, Ogedei Khan, was the one to ask, “Why do you do that? You’ve got to stop doing that.” This was a Muslim financial advisor. He’d called in. He told him, “Well, you’ve got to stop paying more than people ask.” And Ogedei said, “Where’s the money going to go? It’s still in my empire. It’s going to come back eventually.” And so they had a much different attitude, with great respect. And I think a symbol of that is in the time of Kublai Khan, when we see that his uncle and father went to China and came back from China, and then on the second trip, Marco Polo went with him to China and back. They were safe the whole way. Their goods were safe. They came back with tremendous amount of wealth. They were never harassed. And the mere fact that they could cross, it took two years, but the mere fact that they could cross the whole continent safely and come back, it was unprecedented. We really don’t have any well-documented case of anybody, say, from China visiting Europe or Europe visiting China before the Mongols. But since Chinggis Khan, there’s never been a year without contact between east and west. It was permanent. Once he created it, it was permanent.
Lex Fridman
I don’t think it’s possible to measure the positive impact of that, because it wasn’t just trade of goods. It was also exchange, explicit or implicit, along the way, exchange of ideas. Whether that’s exchange of technologies, exchange of philosophical ideas, scientific ideas, technical, mathematical ideas, all of this spread throughout and constantly circulating. Can you speak to that aspect of it?
I don’t think it’s possible to measure the positive impact of that, because it wasn’t just trade of goods. It was also exchange, explicit or implicit, along the way, exchange of ideas. Whether that’s exchange of technologies, exchange of philosophical ideas, scientific ideas, technical, mathematical ideas, all of this spread throughout and constantly circulating. Can you speak to that aspect of it?
Jack Weatherford
Yes. It was an exchange of ideas on every level. Ideas, technology, ideologies, beliefs, scientific information, everything was being exchanged, and even agricultural goods, of new crops for new areas. But Chinggis Khan, he had, a part of his genius of organization, was knowing what skill people had that would contribute towards his empire. For example, the Muslims were very good with arithmetic. In fact, he conquered the little empire of Khorezm, from which we get the word algorithm, because it was a mathematician there who invented algorithms. And so Khorezm, he conquered it very quickly, very easily, no problem, but it belonged to him. But the Muslims were using the zero. The Mongols were absolutely impressed with that. The Chinese less so. They were very suspicious about the zero. But the Mongols were very impressed. Because herders, numbers are important to them for keeping up with their animals.
Yes. It was an exchange of ideas on every level. Ideas, technology, ideologies, beliefs, scientific information, everything was being exchanged, and even agricultural goods, of new crops for new areas. But Chinggis Khan, he had, a part of his genius of organization, was knowing what skill people had that would contribute towards his empire. For example, the Muslims were very good with arithmetic. In fact, he conquered the little empire of Khorezm, from which we get the word algorithm, because it was a mathematician there who invented algorithms. And so Khorezm, he conquered it very quickly, very easily, no problem, but it belonged to him. But the Muslims were using the zero. The Mongols were absolutely impressed with that. The Chinese less so. They were very suspicious about the zero. But the Mongols were very impressed. Because herders, numbers are important to them for keeping up with their animals.
In fact, the Mongols have a simple system. They reduce all animals to the number of horses. You can ask somebody how many animals you can have, and they can say, “Well, 100 horses.” And it doesn’t mean they have 100 horses. It’s going to be like five cows count as four horses, five sheep or five goats count as one horse, four camels count as five horses. So they reduce it all down like that. The Mongols take a census of everything.
And that’s one of the first things Chinggis Khan did. And that was one of the demands he made of every place he went, is a complete census of your people. And every house had to post outside, how many people, how many animals, what did they do, the occupations, all this information.
So they needed good mathematics for this. The Muslims provided it. So they took the Muslims to China, these Middle Eastern scholars and all. Unfortunately, they were rather ruthless sometimes when it came to implementing the tax policies, but they became the financial advisors to him. Other groups of people had other roles like that, and he was moving them around constantly. And so you had a combination. As I said, he himself had that genius for combining new bits of technology, but it created a new kind of cultural spirit, in which other people were also combining technology at other levels, and being encouraged. It was no longer heresy or the devil’s work to bring in this thing.
So we had the spread of printing, for example. We had the partial spread of something such as print money, for example. But we had almanacs being created now through printing, that combined different calendars and different information that was coming along. But one simple but lethal form of technology was that, for example, Chinese had gunpowder. Mostly it was used for fireworks, religious things, and then sometimes in warfare was used for kind of primitive hand grenade, or primitive bomb that could be thrown with a trebuchet.
This was in the time of Kublai Khan more, the grandson. So they had that. The Middle Eastern, the Muslims, and the Byzantines, especially, they had naphtha, what we call Greek fire, flamethrowers that could set things on fire. The Europeans did not excel very much in technology. They were behind in almost everything, but they could cast bells for churches.
Okay, let’s take that bell and we’re going to turn it on its side, and we’re going to use the principles of the flamethrower, and we’re going to use the gunpowder from China, and you’ve got a cannon. So the Mongols, even early on, by the time they got to the siege of Baghdad, but not, I think, in the lifetime of Chinggis Khan, but soon thereafter, in his sons and grandsons, they were using some very primitive forms of cannon. And even something like firing rods. We can’t even call it anything like a rifle, but it could fire a very small ballistic device and all. So this combination of metallurgy, gunpowder, flamethrowers, you put it all together and you come up with something incredibly different.
Weapons innovation
Lex Fridman
So if we jump around a little bit on the topic of a cannon, what are some technological developments that Chinggis Khan, and his son, and Kublai Khan were using? So how much gunpowder were they using? In general, what was their approach to siege warfare, for example? What are some different ideas there?
So if we jump around a little bit on the topic of a cannon, what are some technological developments that Chinggis Khan, and his son, and Kublai Khan were using? So how much gunpowder were they using? In general, what was their approach to siege warfare, for example? What are some different ideas there?
Jack Weatherford
If we switch to the grandson, Kublai Khan, first of all, he changed a lot of the strategies that were no longer working. The Mongol system worked perfectly on the grassland, but by the time you get to Hungary, the grassland starts to give out. By the time you get to Poland, it’s so many farms. It’s hard for horses to get through to farms, and they don’t want to go on the roads. By the time you get to the Indus River, it’s too hot, too humid. The bows are beginning to wilt. The horses are exhausted. It’s not working.
If we switch to the grandson, Kublai Khan, first of all, he changed a lot of the strategies that were no longer working. The Mongol system worked perfectly on the grassland, but by the time you get to Hungary, the grassland starts to give out. By the time you get to Poland, it’s so many farms. It’s hard for horses to get through to farms, and they don’t want to go on the roads. By the time you get to the Indus River, it’s too hot, too humid. The bows are beginning to wilt. The horses are exhausted. It’s not working.
So to conquer South China, Kublai Khan had to come up with new things. One thing, the South Chinese had built a great wall. It was called the Great Wall of the Sea. This is before the wall that we know as the Great Wall, which is really the Ming Wall, of the Ming Dynasty, was built, but the Great Wall of the Sea. And they used it as a defensive navy. They had the largest navy in the world. It was defensive, and it was both literally defensive, and it came time for warfare, they would chain the ships together across the mouth of a harbor to protect the city. And so it became a wall.
Kublai Khan and conquering China
Lex Fridman
So actually, if we rewind, Kublai Khan, who was he? And what was the state of China at that time? That kind of sets up this idea of ships and siege warfare?
So actually, if we rewind, Kublai Khan, who was he? And what was the state of China at that time? That kind of sets up this idea of ships and siege warfare?
Jack Weatherford
In 1215, Chinggis Khan conquered the city we now know as Beijing. It was the capital of the Jin Dynasty of Northern China. And at that time, Southern China was ruled by the Song Dynasty, or usually called the Southern Song. He had already conquered the Xi Xia Kingdom of the Tangut people. And so most of Northern China was under the control of the Mongols from about 1215. And then he conquered middle later, his descendants conquered middle, and then Kublai Khan was the one to take on the south.
In 1215, Chinggis Khan conquered the city we now know as Beijing. It was the capital of the Jin Dynasty of Northern China. And at that time, Southern China was ruled by the Song Dynasty, or usually called the Southern Song. He had already conquered the Xi Xia Kingdom of the Tangut people. And so most of Northern China was under the control of the Mongols from about 1215. And then he conquered middle later, his descendants conquered middle, and then Kublai Khan was the one to take on the south.
But Kublai Khan was born that year in 1215, about three months after the capture of Beijing. And he was nobody. He was the second son of the fourth son of Chinggis Khan. Well, he’s got lots of cousins out there who’ve been riding around. They’re conquering Russia, and they’ve already burned down Kiev, and they’ve conquered different places in the world.
They’re real Mongols. That’s their whole life. And he’s born, and he doesn’t meet Chinggis Khan until he’s about seven years old, because Chinggis Khan was away on a conquest in Central Asia. And Chinggis Khan came back and he met him and he said, “Oh, he doesn’t look like a Mongol. He looks like his mother’s people.” His mother was Sorghaghtani, who was actually a part of the royal family of the Merkit people, whom he had conquered sometime earlier.
And he said, ” He looks like his mother’s people,” who is a little bit more tawny. Mongols tend to be very white with very bright red cheeks, and have a certain very round face, and so on. And so he looked different. And for whatever reason, his mother, I think she recognized the difference, and treated him differently. Her oldest son was called Mongke, later Mongke Khan, Mongke, and she wanted him to become, even though her husband was a drunk, who died out on campaign drunk, and she took over northern China and she began to put it together.
And she wanted her son to become the Great Khan, the emperor of the Mongol Empire. And this wasn’t in line. This wasn’t going to happen. Because he’s the fourth son out of three, others are way in line, way ahead of her.
But she calls the revolution. She made it happen. She put her son in, Mongke Khan in 1251. He became Great Khan. He only lived till 1259. He died of something. It could have been cholera, or there are different stories, and I don’t know the truth of it, but he died on campaign in China trying to conquer Southern China.
Well, up to this point, Kublai Khan had not been distinguishing himself. His mother was, she was a Christian woman, but she had a Buddhist nurse for him. And she had Chinese scholars come in to tutor him. She had a very good education for him. And I think that she planned that he was going to be a great administrator under his older brother, and he was going to administer the lands in China.
And so he was learning all this stuff for it. But the older brother, he insisted on sending him out on campaign. Oh, but he was overweight, he was fat, he had gout. He needed to go rest. There was always some excuse. And the brother was assigning people, Uriyangkhadai, who was the son of Subutai, the great general, he assigned him to teach him warfare. He wasn’t great on the battlefield. He really was not. But he was very smart. And at first a little bit lazy, he liked talking about the religion, sitting around, go hunting, as long as he had many with him to do the shooting, and then to prepare the food and all. And his territory in Northern China was just being run into the dirt by these administrators the Mongols had brought in. They were just overtaxing the people, cheating the people, doing everything wrong. And his mother basically just pulled his chain and she said, “Go to your land. This is your land. You have to administer this land. You go there, you live there, you take charge.” And everybody was terrified of the mother. So he ran off to China and he started administering his land, and he started learning how to do it.
Well, when his brother died in 1259, he was down on the Yangtze River, on a campaign that he was sent by his brother. He was having no success at all. But he thought, “Okay, the brother’s dead. I should finish the campaign.” Meanwhile, his youngest brother, Ariq Boke, Ariq Boke was another hothead Mongol like their father, Tolui. He was rather hotheaded. And he was back in Mongolia. And his tolerance for religions, he had to oversee the debate one time between the Daoists and the Buddhists, because the Mongols thought the Daoists were overtaxing everybody, the Buddhists.
So he had to oversee it. He got mad, and he picked up a statue of the Buddha and beat the Daoist representative to death. So he just wasn’t good for moderating debates. So he was going to be the new Great Khan. So he was declared the Great Khan in Mongolia. But this was a turning life for Kublai Khan, who had never achieved much of anything other than talking to people.
So his wife, Chabi sent him some coded messages, basically telling him, “Forget about Southern China. It’s going to always be there. You can conquer that some other time. Right now, your brother is taking over the empire. You should be the new Emperor. You are the next son after Mongke Khan.” And somehow she invigorated him, and he came back. And even though he didn’t have all the military strategy, he had Northern China, the resources were immense.
He could cut off Mongolia. Mongolia was very dependent on Northern China for food. All the Mongols supported Ariq Boke, all the ones in Central Asia, all of whom were supporting Ariq Boke. So he went to get food from them, and then they didn’t want to give up their food. “Yeah, we want to support you for Great Khan, but we’re not giving up our food.” So he was basically starved into submission in 1262. And then he was taken prisoner into China, and then he mysteriously passed away in 1264, while a legal case was being brought against him for trial, but he never made it to trial. He was gone.
So Kublai Khan had not really distinguished himself very much, but he didn’t have the genius of his grandfather. I won’t say that. But he was smart and clever. He understood more about China than most Mongols did, and he understood more about Mongols than most Chinese did.
So the great thing left, that Chinggis Khan said on his deathbed, “Finish conquering China.” That was the great objective. So Kublai was going to fulfill this, and they didn’t know how. The Great Wall of Ships was protecting the Southern Song. This huge Yangtze River was so wide, the ocean on the side, all of these things were protecting them.
So he had one of his very smart generals named Aju, who was a real Mongol, but he was also able to think in innovative way. He was the grandson of Subutai, and he went with his father Uriyangkhadai on the conquest of the Red River of Northern Vietnam against the Dai Viet people. They went down the river. They were trying to surround this Chinese territory. So they were going to hit them from the north, from the west, and from the south. So they went down the Red River to conquer the Dai Viet. The Dai Viet moved the army up on the other side by boat. And then they had a whole core of elephants.
So they have the Mongols on one side of the river, the Dai Viet forces on the other side. Uriyangkhadai was a smart man, not a genius, but smart. And he already knew from campaigns in Burma that the only way to route the elephants was with flaming arrows to their feet. That was it. But he recognized that they came up on boats. Mongols didn’t like boats. They crossed the river on a goatskin. They wanted to do something organic. A boat was like a cart. A cart belonged to a woman. It was a floating cart. I am not going over on a floating cart. I’m going to ride a goatskin across the river. So he’s assigned one detachment, “You have to burn the boats so the Dai Viet cannot escape when we route the elephants.”
Well, the battle, I mean, got started. The elephants are running wild. All kinds of chaos is going on. The group that’s sent to burn the boats, they’re Mongols. They want to go to war. Why burn a bunch of women’s carts? It’s just not floating … So they go and join the battle. They leave the boats. Well, the Mongols won the battle, but the Dai Viet forces got on the boats and sailed back to what’s now Hanoi. And then they evacuated the city, took all the food, everything out of the city, and they disappeared into the Delta. The Mongols arrived. They conquered, quote-unquote, Hanoi, the capital city. And they had nothing. They had nothing. They won every battle, they lost the war. They retreated. Aju was the son of Uriyangkhadai, and he saw all this happen, and he recognized the importance of water and boats. And so he knew, and he spent his time studying the Yangtze River and every little river around it, and the cities.
And the crucial thing he saw was the cities are heavily, heavily fortified on the land side, because invasion comes from the land, and they expect this little line of boats to protect them on the water. And so their city walls are weak. The defenses are weak on that side. That’s where we have to attack. So how?
They sent off to the Ilkhanate, to Persia, where Chinggis Khan, his uncle was now dead, and his cousins were ruling there, or his nephews, we would say, or cousins, nephews. So they sent over engineers to build special kind of trebuchet, a catapult. And they had to play around with it to adapt it for a boat, because they were usually made for stable ground, but they adapted it for the boat and for throwing heavy things. And also for some incendiary bombs, they developed it. They attacked the first city, it fell. They attacked the … it fell. They had something that was working. They worked their way down the Yangtze River, destroying city after city with this navy. And then the army would move in after the navy had broken down.
Lex Fridman
So this is a catapult on a ship?
So this is a catapult on a ship?
Jack Weatherford
Catapult on a ship. But yeah, we call it trebuchet for this type of catapult.
Catapult on a ship. But yeah, we call it trebuchet for this type of catapult.
Lex Fridman
So this is an engineering solution for peoples who are deeply uncomfortable with boats?
So this is an engineering solution for peoples who are deeply uncomfortable with boats?
Jack Weatherford
Yes.
Yes.
Lex Fridman
And they’ve accepted it.
And they’ve accepted it.
Jack Weatherford
Yes. Now it’s a great weapon. It’s no longer a woman’s cart. It’s a bow and arrow. It is a giant bow and arrow.
Yes. Now it’s a great weapon. It’s no longer a woman’s cart. It’s a bow and arrow. It is a giant bow and arrow.
Lex Fridman
Yeah, it’s fascinating. So they hit them hard on the walls, on the weak side, where there’s no, the army protection.
Yeah, it’s fascinating. So they hit them hard on the walls, on the weak side, where there’s no, the army protection.
Jack Weatherford
Yes. And they conquer their way down to Hangzhou, the capital of the Southern Song. They’ve been in power for a long time, since 970, on now we’re already into the 1270s. That’s a long time. They’re dissipated. They’ve been, had child, they had imbeciles ruling, all kinds of things going on.
Yes. And they conquer their way down to Hangzhou, the capital of the Southern Song. They’ve been in power for a long time, since 970, on now we’re already into the 1270s. That’s a long time. They’re dissipated. They’ve been, had child, they had imbeciles ruling, all kinds of things going on.
And at this point, we have a child in command. But Kublai makes a very strange move. He says, “Okay, let’s invade Japan now. They’re thinking, “What? Wait, wait, wait. We’re fighting against the Song Dynasty.” And most people ascribe it to all kinds of things. But actually I think there was a great logic to it. One was, he had abolished his grandfather’s policy of defeat and destroy until they are no more. That was the phrase that was used for their enemies. And he had replaced it with a kind of mercy policy. Try to incorporate them into your army of possible, but be merciful. He did not want to destroy. And he was not. He had a lot of defectors coming in. And because the Mongols prized people with skills, a lot of very clever people, with ship building, and engineers, and these people were flocking to the Mongols. Whereas the scholars were all hanging out in Guangzhou, doing calligraphy, and poetry, and having contests over who could sing or paint or … I don’t know what scholars do, but they were being scholars.
Lex Fridman
Yes.
Yes.
Jack Weatherford
But there actually, I think there’s a very, very good reason for invading Japan. Several. The main one was to cut off the supply of sulfur. They needed it for gunpowder in the South Song. They lost their sources in northern China when they were driven out. They got it from Japan. It was a great source.
But there actually, I think there’s a very, very good reason for invading Japan. Several. The main one was to cut off the supply of sulfur. They needed it for gunpowder in the South Song. They lost their sources in northern China when they were driven out. They got it from Japan. It was a great source.
But I think there were other reasons. If they could trade, they could also perhaps flee to Japan. And they didn’t want that to happen. And then there’s this idea of kill the chicken to scare the monkey. It’s like, okay, we’ll go do this. And then maybe they’ll just surrender down there if they see us conquer Japan.
Well, it was a total failure. You’ve got a bunch of ships that are mainly great on the river and right along the coast, and you’re crossing some treacherous water there. And the Mongols basically just did not know what they were doing. Okay, you can arrive with the trebuchet and you can throw grenades at the beach. It’s not really going to do a lot of damage. It might scare a few horses, but you’re not destroying cities. And the Japanese cities were more in, they weren’t on the beach waiting for Mongols to come invade. So he failed in that invasion.
Lex Fridman
So we should say that this is the time of the samurai, right? In Japan.
So we should say that this is the time of the samurai, right? In Japan.
Jack Weatherford
Yeah, the Samurai.
Yeah, the Samurai.
Lex Fridman
So there was never a real test of that-
So there was never a real test of that-
Jack Weatherford
No. There was some fighting. And the Samurai learned some very valuable things. The samurai had such a ritualized way of writing. It’s like the knights of Europe, coming out with armor that had to be lifted up on a crane onto a horse. And I mean, it was just craziness. Craziness.
No. There was some fighting. And the Samurai learned some very valuable things. The samurai had such a ritualized way of writing. It’s like the knights of Europe, coming out with armor that had to be lifted up on a crane onto a horse. And I mean, it was just craziness. Craziness.
The samurai, almost at that point, you ride out in front of your enemy and you recite the story of your genealogy. What? Mongols, they have no use for that. They’re there to fight. They’re there to win. But on the other hand, this was unknown territory to them, and the weather did turn against them. But I don’t want to give too much credit to the weather. I really think that the Japanese defeated them. The Mongols weren’t well-prepared. Their ships were not very good. They were defeated in the first invasion.
Lex Fridman
Could they get off the ships onto the beach?
Could they get off the ships onto the beach?
Jack Weatherford
Oh, they did. They had some skirmishes or small battles on land. Yes, they did.
Oh, they did. They had some skirmishes or small battles on land. Yes, they did.
Lex Fridman
But they didn’t successfully complete them [inaudible 02:47:31]-
But they didn’t successfully complete them [inaudible 02:47:31]-
Jack Weatherford
No, no.
No, no.
Lex Fridman
So they couldn’t do their usual Mongol thing.
So they couldn’t do their usual Mongol thing.
Jack Weatherford
Right. Well, see, they don’t have enough horses, for one thing. And there were many tactical things that they had done incorrectly. It’s the first time anybody had ever tried to have such a massive invasion.
Right. Well, see, they don’t have enough horses, for one thing. And there were many tactical things that they had done incorrectly. It’s the first time anybody had ever tried to have such a massive invasion.
Lex Fridman
So they’re just learning the basics of what it means to have a navy.
So they’re just learning the basics of what it means to have a navy.
Jack Weatherford
So he has failed to conquer, and he’s thinking like a Mongol, that you rule those waters and lands. But he ruled the ocean. He stopped the trade. He stopped the supply. He cut off the possibility of the Song dynasty fleeing to Japan. He won, in a certain way. He lost, but he had won his objective of cutting off southern China.
So he has failed to conquer, and he’s thinking like a Mongol, that you rule those waters and lands. But he ruled the ocean. He stopped the trade. He stopped the supply. He cut off the possibility of the Song dynasty fleeing to Japan. He won, in a certain way. He lost, but he had won his objective of cutting off southern China.
Also, it gave him, navy some experience with the ocean, and now they were ready to move out into the ocean around Southern China. So they were closing in then. Aju was in command. But actually the head command was a man named Bayan, who was a Mongol who had been raised more in Central Asia. He was perhaps close to the Fergana Valley, in that area. We’re not exactly sure where he was born, but he grew up over there. And then he eventually was living in what’s now Iran.
But he came and he took over command of the army. He was very cosmopolitan, sophisticated, intelligent. Aju should have been in command. But Bayan recognized that, and he and Aju worked together very well. Aju knew how to fight the war. Bayan was able to negotiate things back with the capital city and handle things. So Bayan is in command.
And so the generals are deserting the South Song right and left. The artisans are all coming up to join the Mongols, get paid. The generals are loading up the boats with all the jewels, and they grab a couple of brothers to the little five-year- old emperor, and they put them on a boat, and they’re fleeing. They even deserted their own families. The generals were corrupt cowards who fled. The person left in charge was the Dowager Empress, an old lady. She had no children. Cixi was her name, the Dowager Empress Cixi. They said she was missing an eye. She was ugly. They called her Ugly Cixi. That’s what they called her at that time. She was in charge, and she offered the Mongols everything. “I’ll give you everything-“
Jack Weatherford
And she offered the Mongols everything. “I’ll give you everything. Please let the emperor stay. Okay, even if you demote him to just being a king, please let him stay.” Bayan said, “No, total surrender. Total surrender.” So she decided to surrender. Well, she said, “Yes, we will surrender the capitol.” So Bayan came in with a small group of soldiers. They looked around and she invited him to come to the palace to surrender. And he said, “No, I didn’t win this war in a palace. My soldiers won this war in the field. You have to come with the emperor in front of my soldiers to surrender.” But he did not harm her, he respected her, and there was no looting of the city. Now, later, they take everything in a very systematic way. They take the archives and all this kind of stuff away, but there was no wholesale looting, a killing of people, nothing like that.
And she offered the Mongols everything. “I’ll give you everything. Please let the emperor stay. Okay, even if you demote him to just being a king, please let him stay.” Bayan said, “No, total surrender. Total surrender.” So she decided to surrender. Well, she said, “Yes, we will surrender the capitol.” So Bayan came in with a small group of soldiers. They looked around and she invited him to come to the palace to surrender. And he said, “No, I didn’t win this war in a palace. My soldiers won this war in the field. You have to come with the emperor in front of my soldiers to surrender.” But he did not harm her, he respected her, and there was no looting of the city. Now, later, they take everything in a very systematic way. They take the archives and all this kind of stuff away, but there was no wholesale looting, a killing of people, nothing like that.
So they’ve taken the capitol and she comes out, she surrenders, she bows on the ground towards Beijing, and then she takes the child emperor and they slowly make their way. She was a little bit sick. It took her a longer time to Beijing, and they surrender again in a public ceremony, bowing to the Kublai Khan. He gives each of them a palace. He gives them a new title. He’s trying to show the world this is the new face of Mongols. We don’t kill off the old people anymore who are ruling. We’re gonna give them a palace, treat them nicely and all. But the navy that had fled did not defend the city. Those cowardly generals, they made the new little boy, seven-year-old brother, half-brother to Emperor Gong, was his name. They made him the emperor.
Well, they’re just floating around on the ocean, losing all support from city after city. The Muslims, who were controlling the trade and controlling many of the ships of that area, they were Chinese Muslims, but they were still Muslims. They switched sides to the Mongols because of the religious freedom thing, and because they were merchants and their status would be raised. The Muslims were switching over. The fleet was kind of a fleet lost without a country out there. They had some loyal supporters, some places. They drop the emperor into ocean.
Lex Fridman
What do you mean?
What do you mean?
Jack Weatherford
How do you drop an emperor into ocean? They accidentally spilled him in the ocean, and then they fished him out, but he died. So fortunately they had one more seven year old half brother, so on Lantau Island, exactly where the Hong Kong airport is today, the new… well, it’s not so new anymore, but I still think it was the new airport on Lantau Island. So they went there and they had a big coronation ceremony and all, but the people there were not supportive enough. It certainly wasn’t Hong Kong then, anyway, the delta of the Pearl River. So they sailed out farther south to another island, and then they took it over. And of course, the first thing they did was, well, we have to build a palace. What? The Mongols are chasing you and you’re going to stop and build a palace?
How do you drop an emperor into ocean? They accidentally spilled him in the ocean, and then they fished him out, but he died. So fortunately they had one more seven year old half brother, so on Lantau Island, exactly where the Hong Kong airport is today, the new… well, it’s not so new anymore, but I still think it was the new airport on Lantau Island. So they went there and they had a big coronation ceremony and all, but the people there were not supportive enough. It certainly wasn’t Hong Kong then, anyway, the delta of the Pearl River. So they sailed out farther south to another island, and then they took it over. And of course, the first thing they did was, well, we have to build a palace. What? The Mongols are chasing you and you’re going to stop and build a palace?
Lex Fridman
So these are the remains of the Chinese?
So these are the remains of the Chinese?
Jack Weatherford
Yes, the generals.
Yes, the generals.
Lex Fridman
The generals.
The generals.
Jack Weatherford
The army and the navy.
The army and the navy.
Lex Fridman
And there was a real competence issue.
And there was a real competence issue.
Jack Weatherford
Yes.
Yes.
Lex Fridman
Okay, so they’re going to build a palace.
Okay, so they’re going to build a palace.
Jack Weatherford
And we’re gonna protect it with a great wall of the sea.
And we’re gonna protect it with a great wall of the sea.
Lex Fridman
Right.
Right.
Jack Weatherford
They chained together the boats across the entrance to the harbor, and they put the palace boat, so-called, in the middle. The generals didn’t trust their own soldiers enough, so they made all of them leave the island and go to the boats to fight the Mongols. So Mongols arrived, and over and over and over they asked them to surrender. You won’t be harmed, all this kind of stuff. But the Mongols now took over the land. So they had the water all around them and they had the land. And once the fighting started, they could just shoot down from the highland right onto the ships. And they’ve cut the ships off from the fresh supply of wood and water. So they can’t boil rice. They have to try to eat rice and drink sea water. They’re all sick as dogs out there. And the leaders refused to surrender.
They chained together the boats across the entrance to the harbor, and they put the palace boat, so-called, in the middle. The generals didn’t trust their own soldiers enough, so they made all of them leave the island and go to the boats to fight the Mongols. So Mongols arrived, and over and over and over they asked them to surrender. You won’t be harmed, all this kind of stuff. But the Mongols now took over the land. So they had the water all around them and they had the land. And once the fighting started, they could just shoot down from the highland right onto the ships. And they’ve cut the ships off from the fresh supply of wood and water. So they can’t boil rice. They have to try to eat rice and drink sea water. They’re all sick as dogs out there. And the leaders refused to surrender.
The little boy is there, seven-year-old emperor, Bing was his name, with his pet parrot. That’s the only thing he had left in life, was his pet parrot. And then the Mongols, they offered every opportunity, but the prime minister, so-called, coward that he is, although he’s treated as a hero today in China and throughout their history, the coward that he was, he said, “We will not disgrace the country by letting them capture the emperor.”
So first he threw his own wife and children into the water to drown. And then he took the emperor and held him, he was seven years and one month, he had just turned seven years old, and jumped into the water with his child. A child murderer. He’s a child murderer, to do that. Somehow in the whole ruckus, the cage came undone with the parrot and the parrot fell in the water too. So the seven-year-old boy and the parrot died in the water. That was the end of one of the greatest dynasties in the history of the world. The Song Dynasty, they were intellectually great. They were artistically great. They were technologically great. They were just one of the greatest moments of world history. And it ends with this coward killing a child and his pet parrot in order to save the honor that was betrayed by this woman. The men lost the war. The men lost the war. Who’s to blame? An old one-eyed, ugly lady Empress Xie?
Lex Fridman
Well, the bigger picture there is probably the institutions became corrupt and stale.
Well, the bigger picture there is probably the institutions became corrupt and stale.
Jack Weatherford
Yes, yes.
Yes, yes.
Lex Fridman
The army weakened and the politician class probably have lost their skill and competence at ruling and all that kind of stuff.
The army weakened and the politician class probably have lost their skill and competence at ruling and all that kind of stuff.
Jack Weatherford
All that is true. And the Chinese summarize that with losing the mandate of heaven.
All that is true. And the Chinese summarize that with losing the mandate of heaven.
Lex Fridman
Right. I mean, everybody has their perspective, maybe. The way you told the story has a very kind of objective sort of way of revealing the absurdity and the cowardice of it. But there’s probably the Chinese perspectives that they tell the story in some maintained honor to the last moment.
Right. I mean, everybody has their perspective, maybe. The way you told the story has a very kind of objective sort of way of revealing the absurdity and the cowardice of it. But there’s probably the Chinese perspectives that they tell the story in some maintained honor to the last moment.
Jack Weatherford
Very often, most scholars depict Empress Xie as the traitor to the country. And I say, “No, that boy lived on for another 45 years.” And so she did not betray the country. She protected her emperor that she was supposed to protect. It was the man who killed the child emperor who killed Zhao Bing.
Very often, most scholars depict Empress Xie as the traitor to the country. And I say, “No, that boy lived on for another 45 years.” And so she did not betray the country. She protected her emperor that she was supposed to protect. It was the man who killed the child emperor who killed Zhao Bing.
Lex Fridman
So what was the lasting impact of Kublai Khan unifying China?
So what was the lasting impact of Kublai Khan unifying China?
Jack Weatherford
Well, yes, first of all, he had unified China in the largest sense of the word, with Korea, Tibet, Manchuria, Mongolia, part of Central Asia, he had unified it. But he did so at the expense of his empire. They didn’t recognize him as the great emperor, and there was great opposition from the Golden Horde of Russia, and also from the central region, which is called the Chagataid, the descendants of Chagatai, the second son, the Chagatai Empire, and then from the Il-Khanate of Persia.
Well, yes, first of all, he had unified China in the largest sense of the word, with Korea, Tibet, Manchuria, Mongolia, part of Central Asia, he had unified it. But he did so at the expense of his empire. They didn’t recognize him as the great emperor, and there was great opposition from the Golden Horde of Russia, and also from the central region, which is called the Chagataid, the descendants of Chagatai, the second son, the Chagatai Empire, and then from the Il-Khanate of Persia.
Lex Fridman
These are the different sort of fracturings of the Mongol Empire?
These are the different sort of fracturings of the Mongol Empire?
Jack Weatherford
The sons of Genghis Khan.
The sons of Genghis Khan.
Lex Fridman
Yeah.
Yeah.
Jack Weatherford
And only the Il-Khanate was still loyal to him, but they’re so far away.
And only the Il-Khanate was still loyal to him, but they’re so far away.
Lex Fridman
Yeah.
Yeah.
Jack Weatherford
But now he has a navy.
But now he has a navy.
Lex Fridman
But this is, I mean, even the four pieces, the whole thing is gigantic, and even the pieces are gigantic.
But this is, I mean, even the four pieces, the whole thing is gigantic, and even the pieces are gigantic.
Jack Weatherford
Yes.
Yes.
Lex Fridman
So, I mean, it’s very hard it to keep an empire of this size together.
So, I mean, it’s very hard it to keep an empire of this size together.
Jack Weatherford
Yes. But he had China. It was unified under him. And then he sent out the first expedition to sail directly to Persia. There had been trade all throughout thousands of years, but it was usually port to port, different merchants trading goods. No, he organized a great fleet to send a queen, or a princess to become a queen in the Il-Khanate, to marry the Il-Khan of Persia. It’s Persia and Azerbaijan and Armenia and Iraq and part of Syria, all of that area. So he organized this, and it so happened that Marco Polo was ready to go home because they knew Kublai Khan was about to die. And in fact, he only had about one year left to live. And they wanted to get their riches out before they didn’t know what’s gonna happen. This is a new dynasty. They’ve been in total control of China for one generation, and they didn’t know what was gonna happen.
Yes. But he had China. It was unified under him. And then he sent out the first expedition to sail directly to Persia. There had been trade all throughout thousands of years, but it was usually port to port, different merchants trading goods. No, he organized a great fleet to send a queen, or a princess to become a queen in the Il-Khanate, to marry the Il-Khan of Persia. It’s Persia and Azerbaijan and Armenia and Iraq and part of Syria, all of that area. So he organized this, and it so happened that Marco Polo was ready to go home because they knew Kublai Khan was about to die. And in fact, he only had about one year left to live. And they wanted to get their riches out before they didn’t know what’s gonna happen. This is a new dynasty. They’ve been in total control of China for one generation, and they didn’t know what was gonna happen.
And also, just before that, there’d been a bad sign because Kublai Khan had tried to invade Japan a second time, and he had failed a second time. And the second time, I think again, he had a practical purpose, and that was he had this whole huge Song army that now he’s the new enlightened Mongol who doesn’t slaughter. What is he gonna do? They’re not reliable. They’re not safe. So he sends a bunch of them up into the Amur River of what’s now the Russian Far East, or we call Siberia in English, but the Russian Far East, the Amur River. He sent expeditions up into Tibet, exploring options up there, but there wasn’t enough room, or enough agricultural area for a huge military colony.
But most of his ships were loaded with former prisoners of the war from the Song Dynasty. And they were not armed. They had hoes and implements for farming. He wanted to create, obviously, a military agricultural farm in Japan to help feed Northern China, ’cause it was very important. Just as they were doing with the Amur River, but it was more complicated. So, again, they lost. They didn’t have it. And part of the reason is the expedition was massive, and they organized it in the Mongol principles of left wing, right wing. This didn’t work at sea ’cause the left wing is from Korea. There’s Korean ships built up there. The right wing is from Southern China, mostly, with ships built down there. They’re not the same. They have a head, but there’s no center point. Genghis Khan always had the gol, they called it, G-O-L, the gol, the center, or Q-O-L, qol [inaudible 03:01:14]. But he had the center in command. No, he sent the two without a clear… And they were arguing with each other, not cooperating, not helping each other, sabotaging each other.
They get there, and once again, they have the same problems. Even though they’ve come with lots of grenades this time, again, the grenades are exploding. They’re scaring the horses. It’s impressive. And a lot of silk screens are made later showing these impressive battles and all. But they lost. And again, a typhoon happened to be the final destruction of the navy. But I think Japan had defeated the Mongols. I would say. Japanese deserve credit for that victory. And then the sinking of the ships was more caused by the typhoon. But already the Japanese had developed good strategies while the Mongols had been away. They knew how the Mongols fought, and they knew that at night they could fire flaming arrows at the ships, set them on fire, and they were doing great damage. So again, Kublai Khan lost the invasion of Japan, but the soldiers were gone. They drowned. He didn’t kill them off, was his deliberate plan, but the problem was solved.
It’s one of those ironies of history that is hard to quite understand. So this had happened, but then Kublai Khan was coming to near the end of life, and Marco Polo and those wanted to get out, they’re ready to go. And Kublai Khan allowed them to sail on this expedition with Kokochin, was her name, the Princess Kokochin, to go to Hormuz. And so they went, and that began a whole system of trade, back and forth, back and forth. Kublai Khan died soon after that. His grandson, who’s not so well respected in history, because he’s often called a drunk, but his name was Temur, Temur Oljeitu. But he was a drunk when he was young, but his grandfather had him caned a couple times in public, and he cured him of drinking. And actually he was not a drunk later on.
And first he reassembled the Mongol Empire. He did. The Golden Horde declared loyalty to him, recognized him as Great Khan, as emperor of the whole empire, the Chagataid of Central Asia, they declared loyalty to him. The Il-Khanate was already loyal to him. They all declared loyalty. He had reassembled the empire and he had the greatest navy in the world, and he sent out envoys to every place they had attacked or traded with to say, “That era is over. We’re no longer attacking anybody. We’re changing from conquest to commerce. We want to trade with you. Come to China, bring your goods. We’re gonna trade with you.” He instituted, it was short, unfortunately didn’t last forever. I wish it could have. But it was a great era of the exchange of all kinds of things going back and forth, actually all the way to Africa, ’cause from Hormuz they had connection to Somaliland. And some people say Kenya already at that time, I’m not sure, but very wide. Very wide.
Lex Fridman
So technically he ruled over the largest size the Mongol Empire ever had?
So technically he ruled over the largest size the Mongol Empire ever had?
Jack Weatherford
Yes. But although, actually, the Golden Horde of Russia, they were quite independent by now. And he let them be independent, but they were loyal to him and they were still exchanging back and forth all kinds of things. So there were Ossetian soldiers in China. They had a whole contingent of Ossetian soldiers there, and from Russia, from the Caucus areas of Russia.
Yes. But although, actually, the Golden Horde of Russia, they were quite independent by now. And he let them be independent, but they were loyal to him and they were still exchanging back and forth all kinds of things. So there were Ossetian soldiers in China. They had a whole contingent of Ossetian soldiers there, and from Russia, from the Caucus areas of Russia.
Lex Fridman
And how do they communicate? Are they using the postal service? You have to literally deliver the letters?
And how do they communicate? Are they using the postal service? You have to literally deliver the letters?
Jack Weatherford
Over time, those groups started intermarrying, they were allowed to intermarry. The Chinese were not, but they were intermarrying with Mongols, and they were switching to Mongolian language, slowly. At first, I don’t know, it’s not clear. But again, Kublai Khan thinking in this internationalist way, said, “Okay, we need a new alphabet for the world.” Everybody in the world writes with one alphabet, Chinese, Mongolian, Russian, Arabic, everything. It didn’t work. But he tried it for a while and some inscriptions are still there to this day.
Over time, those groups started intermarrying, they were allowed to intermarry. The Chinese were not, but they were intermarrying with Mongols, and they were switching to Mongolian language, slowly. At first, I don’t know, it’s not clear. But again, Kublai Khan thinking in this internationalist way, said, “Okay, we need a new alphabet for the world.” Everybody in the world writes with one alphabet, Chinese, Mongolian, Russian, Arabic, everything. It didn’t work. But he tried it for a while and some inscriptions are still there to this day.
Lex Fridman
And we should maybe briefly mentioned Marco Polo that you’ve talked about. So he’s this now famous explorer that traversed the continent, the Silk Road, and then stayed with Kublai Khan for a while. And I guess is one of the primary documenters of everything that’s been going on. Is there something else interesting to say about Marco Polo and about his interaction with Kublai Khan?
And we should maybe briefly mentioned Marco Polo that you’ve talked about. So he’s this now famous explorer that traversed the continent, the Silk Road, and then stayed with Kublai Khan for a while. And I guess is one of the primary documenters of everything that’s been going on. Is there something else interesting to say about Marco Polo and about his interaction with Kublai Khan?
Jack Weatherford
I like Marco Polo. I use his work a lot. I find him very reliable. In the areas where he’s not reliable you can kind of tell because he wasn’t there. But the places he was, he reported a lot of stuff. And so I’m very much indebted to him for a lot of things because with something like the Princess Kokochin, and also another fighting princess from Central Asia named Khutulun, he wrote about that. But I also needed other sources. So I found if I could find Chinese sources or Arab sources or something else, or Persian to support it, then I really felt a lot of confidence with him over time. But pieces were romanticized. You have to always discount it, but he’s very good.
I like Marco Polo. I use his work a lot. I find him very reliable. In the areas where he’s not reliable you can kind of tell because he wasn’t there. But the places he was, he reported a lot of stuff. And so I’m very much indebted to him for a lot of things because with something like the Princess Kokochin, and also another fighting princess from Central Asia named Khutulun, he wrote about that. But I also needed other sources. So I found if I could find Chinese sources or Arab sources or something else, or Persian to support it, then I really felt a lot of confidence with him over time. But pieces were romanticized. You have to always discount it, but he’s very good.
However, I believe the best work written about Marco Polo, aside from his own book, which was actually written by Rustichello, dictated in prison in Genoa. In the 20th century, Eugene O’Neill wrote a play that became a comedy on Broadway called Marco Millions. That was both a play on what he was called, Il Milione, the million, ’cause he had talked about cities of millions of people, and about money in the millions and things that people in Europe just couldn’t believe could happen.
He then published his whole play as a book to show people what he really meant. And it was an ironic look at capitalism, ’cause this is 20th century already, versus the idea of like a philosopher king, which he saw in Kublai Khan. And so Marco Polo becomes a symbol of capitalism, not at its worst, but at its most basic. And that is like the princess in this story. This is not in real life, but this is in the play written by Eugene O’Neill, but I think it captures a lot. The Princess Kukachin says, “Marco is an excellent judge of quantity,” and there are things like that.
And then in the play, Bayan, the great general, he talks with Kublai Khan and he said, “Look, these people are dangerous from the West. We should go conquer them now while we can.” Kublai Khan tells Bayan, again in the play, this is fiction, but he tells Bayan, “They are not worth conquering, and if we conquer them, we will become like them.” And he said, “Marco Polo has been in our land. He has seen everything. He has learned nothing. He has seen everything. He understands nothing.”
For me, this was such an important moment in the history of the world, symbolically. With Marco Polo and Kublai Khan, the coming together of two worlds, it could have gone a different way, it could have gone a different way. It’s not that I’m anticapitalist, I’m procapitalist, but the way so many things worked out, it was a misstep in history. Maybe we took the wrong step at that moment, and we could have learned more from cooperation.
Lex Fridman
They didn’t quite integrate successfully.
They didn’t quite integrate successfully.
Jack Weatherford
No. But today we’ve returned to that, I think. The East and the West are confronting each other again on more equal terms. For a long time, the West was so dominant and the East was so downtrodden by colonialism and other things, and internal rot and other things. But today there’s, not necessarily equality, but there’s more of a balance, and which way will we go?
No. But today we’ve returned to that, I think. The East and the West are confronting each other again on more equal terms. For a long time, the West was so dominant and the East was so downtrodden by colonialism and other things, and internal rot and other things. But today there’s, not necessarily equality, but there’s more of a balance, and which way will we go?
Lex Fridman
And again, there’s a lot of room and a lot of energy for division, for misunderstanding versus integration. Like the East is demonized in the West. And one of the great regrets I have that I hope to alleviate is just how little I understand China and the East.
And again, there’s a lot of room and a lot of energy for division, for misunderstanding versus integration. Like the East is demonized in the West. And one of the great regrets I have that I hope to alleviate is just how little I understand China and the East.
Jack Weatherford
Yes.
Yes.
Lex Fridman
It’s just sort of not just from economics, politics, reading a few books, but the way you’ve understood and felt the Mongolian steppe, like understand the Chinese people in that way, because it does feel like from that understanding there could be integration of ideas.
It’s just sort of not just from economics, politics, reading a few books, but the way you’ve understood and felt the Mongolian steppe, like understand the Chinese people in that way, because it does feel like from that understanding there could be integration of ideas.
Jack Weatherford
My work is often classified as Chinese history, which I think is ironic ’cause for me it’s always a Mongolian history. But for the last book I wrote, which dealt a lot more with China because it was about Kublai Khan, then in that book, I deliberately did not go to China. I’d been there numerous times before. I deliberately did not. I’m an outsider. I do not speak Chinese. I’m not a Chinese scholar. I never even had a course in Chinese art or calligraphy or anything. And I wanted to be very clear. Mine is an outside perspective. But I think it’s possible as an outsider to still have respect for that culture, even if I disagree that they point this one as a hero and that one just the villain. I disagree and they’ll say, oh, I’m wrong. I don’t understand their history. And they’re probably right. That’s quite possible. But this is an outside view that is different and tries to be respectful of what happens in that part of the world.
My work is often classified as Chinese history, which I think is ironic ’cause for me it’s always a Mongolian history. But for the last book I wrote, which dealt a lot more with China because it was about Kublai Khan, then in that book, I deliberately did not go to China. I’d been there numerous times before. I deliberately did not. I’m an outsider. I do not speak Chinese. I’m not a Chinese scholar. I never even had a course in Chinese art or calligraphy or anything. And I wanted to be very clear. Mine is an outside perspective. But I think it’s possible as an outsider to still have respect for that culture, even if I disagree that they point this one as a hero and that one just the villain. I disagree and they’ll say, oh, I’m wrong. I don’t understand their history. And they’re probably right. That’s quite possible. But this is an outside view that is different and tries to be respectful of what happens in that part of the world.
Just as I’m respectful towards Genghis Khan and the Mongol Empire, I respect China very much. I’m an American. I love the ideals of my country. I love so many aspects of our culture, and there are many aspects I don’t, of course, because it’s impossible to love everything, even about the members of your own family, you know?
Lex Fridman
Yeah.
Yeah.
Jack Weatherford
And I do hope that through understanding one another, or just making the effort to understand, even if we understand wrongly and we’re incorrect in it, just to make the effort to understand will help us a lot. And the West has had a long couple of centuries of extreme arrogance that they are there to teach the world. And I am sometimes dismayed. I meet these young people all over the world who’ve come to help. They’re an NGO, and they’re gonna teach the people how to take care of the environment. They’re gonna teach the women how to exercise their rights. They’re gonna bring in micro financing to help liberate people. We are arrogant beyond words, and we need to be a little bit more humble and try to put ourselves on an equal basis with some of these people, not a superior basis.
And I do hope that through understanding one another, or just making the effort to understand, even if we understand wrongly and we’re incorrect in it, just to make the effort to understand will help us a lot. And the West has had a long couple of centuries of extreme arrogance that they are there to teach the world. And I am sometimes dismayed. I meet these young people all over the world who’ve come to help. They’re an NGO, and they’re gonna teach the people how to take care of the environment. They’re gonna teach the women how to exercise their rights. They’re gonna bring in micro financing to help liberate people. We are arrogant beyond words, and we need to be a little bit more humble and try to put ourselves on an equal basis with some of these people, not a superior basis.
Fall of the Mongol Empire
Lex Fridman
Beautifully put. How did the Mongol Empire come to an end? How did it fall?
Beautifully put. How did the Mongol Empire come to an end? How did it fall?
Jack Weatherford
Despite the fact that Temur Oljeitu Khan had United the Empire, at least symbolically, all of it, and they had the trade going on, the Mongols never adapted well to China, and they began having problems in different areas. So in some areas of the world, they became more like the local people. So in Central Asia, they became Muslim and they got more absorbed into that world and broke away from the Mongol examples from before. Russia lingered on longer under Mongol domination, but it got weaker and weaker over time, and it was based around the Volga River, but they weakened to the point that they just became a tributary people minority within a Russian empire. But the Mongols had left the framework for empire for Russia. That’s something the Russians don’t wanna hear any more than they wanna hear me criticize the end of the Song Dynasty.
Despite the fact that Temur Oljeitu Khan had United the Empire, at least symbolically, all of it, and they had the trade going on, the Mongols never adapted well to China, and they began having problems in different areas. So in some areas of the world, they became more like the local people. So in Central Asia, they became Muslim and they got more absorbed into that world and broke away from the Mongol examples from before. Russia lingered on longer under Mongol domination, but it got weaker and weaker over time, and it was based around the Volga River, but they weakened to the point that they just became a tributary people minority within a Russian empire. But the Mongols had left the framework for empire for Russia. That’s something the Russians don’t wanna hear any more than they wanna hear me criticize the end of the Song Dynasty.
But it is true that even Yam. Yam is the word that was used for this postal system. And that’s the ministries today in Russia. There are many, many other things in Russia. Even Malchin. Malchin is a herder, mal is an animal, and chin is a person who takes care of animals. It’s all kinds of influences in Russia that some people want to deny. But there’s always a great powerful strand of research and scholarship in Russia that supports this understanding of the Mongols. And I depend on them tremendously.
It’s not just Gumilev is one of the famous ones, but he was a little bit too romantic with his ideas and all. But I depend upon a lot of the research done by Russian scholars and by early German scholars in the 19th century under sponsorship of the Tsar. So I depend on that work. So you had a great influence there, but it was weakening. So bit by bit, 1368, the Mongols had become so weak within China that they were overthrown, but they weren’t absorbed into China. The Mongols had been there since 1215 to 1368. They packed up, went back to Mongolia. It was just another seasonal migration.
Lex Fridman
Yeah.
Yeah.
Jack Weatherford
You know? It was just amazing. And they said, “Okay, we’re still the Yuan Dynasty. We’re not giving you the seals. We’re not acknowledging the Ming.” And they never did, throughout the whole of the Ming. In fact, they went down one time and captured the Ming Emperor, took him back to Mongolia, and then they tried to ransom him, and the attorney said, “No, we’re gonna appoint another emperor.” So the Mongols decided, “Okay, the worst thing we can do to the Chinese is give them back the old Emperor.” So you had two emperors back. Okay, let them work it out. And the empire just weakened from internal reasons for the Mongols, but some external things from nature. And I think that was the great plague.
You know? It was just amazing. And they said, “Okay, we’re still the Yuan Dynasty. We’re not giving you the seals. We’re not acknowledging the Ming.” And they never did, throughout the whole of the Ming. In fact, they went down one time and captured the Ming Emperor, took him back to Mongolia, and then they tried to ransom him, and the attorney said, “No, we’re gonna appoint another emperor.” So the Mongols decided, “Okay, the worst thing we can do to the Chinese is give them back the old Emperor.” So you had two emperors back. Okay, let them work it out. And the empire just weakened from internal reasons for the Mongols, but some external things from nature. And I think that was the great plague.
Everything in history, everything that’s good comes with something underneath it that’s bad. And everything that’s bad seems to have something underneath that sometimes works out good, in a way. But this great system that united, it’s called the Yam or Ortogh, that had united everything, people could move back and forth quickly that it could also take the plague out of Southern China into all parts of the world. And I do think that’s what happened. And the plague destroyed the Mongol system.
And if all of these people are ruled by Mongols because they’re benefiting so much from this system, and now the system collapses, you don’t need the empire anymore. So it just fell apart. After 1368, the empire just fell apart, and most of them stayed in Persia and Iran and Afghanistan. The Hazara people are still descended from the army there. And then in Russia, some of them stayed. But then finally in the time of Catherine the Great, a lot of them were returned. They had been there for hundreds of years, and then they returned to Mongolia in the 1700s. And so, many Mongols came home. They were still Mongols. Despite hundreds of years of exposure to other cultures, they came back to their tent and squatting around the fire and drinking fermented milk and eating dried curds.
Lex Fridman
It’s interesting that the Mongolian spirit is so strong that it persists through centuries, and they just return right back on the horse, riding in the open steppe.
It’s interesting that the Mongolian spirit is so strong that it persists through centuries, and they just return right back on the horse, riding in the open steppe.
Jack Weatherford
Yeah, well, it was actually very difficult because they were a little bit lazy and they weren’t so good with doing the task. And so it became difficult, actually, to support so many people coming home and eating up all the animals. The Mongols in China had been used to just eating. They hadn’t been producing much for 150 years.
Yeah, well, it was actually very difficult because they were a little bit lazy and they weren’t so good with doing the task. And so it became difficult, actually, to support so many people coming home and eating up all the animals. The Mongols in China had been used to just eating. They hadn’t been producing much for 150 years.
Lex Fridman
So just to return to Genghis Khan, and we talked about Dan Carlin, and Dan Carlin said that Genghis Khan’s army was the greatest military force in history. And many other historians agree that before rifles came into popular use, Genghis Khan would basically beat every single army, including Napoleon. And you mentioned the Samurai, the whole formal setup, same with Napoleon. There’s a whole several hours to set up the chess pieces on the military board. I mean, you could just imagine what Genghis Khan and the dynamism, the speed of everything, what that would do to Napoleon. So, I guess the question is, do you agree with that notion that Genghis Khan’s army is the greatest military force in history?
So just to return to Genghis Khan, and we talked about Dan Carlin, and Dan Carlin said that Genghis Khan’s army was the greatest military force in history. And many other historians agree that before rifles came into popular use, Genghis Khan would basically beat every single army, including Napoleon. And you mentioned the Samurai, the whole formal setup, same with Napoleon. There’s a whole several hours to set up the chess pieces on the military board. I mean, you could just imagine what Genghis Khan and the dynamism, the speed of everything, what that would do to Napoleon. So, I guess the question is, do you agree with that notion that Genghis Khan’s army is the greatest military force in history?
Jack Weatherford
Short answer is yes, absolutely. No other power in the history of the world has conquered Russia and China and Persia and Central Asia and Turkey and Korea. No power in the world has done that. Not Alexander, not the Romans. Nobody will ever do it again. Nobody’s going to conquer China and Russia again and rule both countries. It’s just not gonna happen.
Short answer is yes, absolutely. No other power in the history of the world has conquered Russia and China and Persia and Central Asia and Turkey and Korea. No power in the world has done that. Not Alexander, not the Romans. Nobody will ever do it again. Nobody’s going to conquer China and Russia again and rule both countries. It’s just not gonna happen.
Lex Fridman
What lessons can you take from that’s applicable to modern warfare?
What lessons can you take from that’s applicable to modern warfare?
Jack Weatherford
Oh, I think there’s a very good lesson. The Mongols took Iraq. They took Baghdad, they held it. The Americans, we followed the exact opposite strategy of the Mongols. The Mongol strategy is first you take the countryside. They’re country people. They think in terms of countryside. You take the countryside, you occupy the countryside, and you cut off the city. It cannot live without the countryside. And that’s how they did it every time. They would come in, as I say, in some cases, two years in advance, to clear people out so they would have room for their horses and have pasture for their horses and all. And you take the small towns and then the small cities, and then the last one is the big city. Americans, they said, “No, we’re gonna take Baghdad. We’re gonna bomb Baghdad. We’re gonna have this shock and awe. We’ll go in, we conquered a country from Baghdad.”
Oh, I think there’s a very good lesson. The Mongols took Iraq. They took Baghdad, they held it. The Americans, we followed the exact opposite strategy of the Mongols. The Mongol strategy is first you take the countryside. They’re country people. They think in terms of countryside. You take the countryside, you occupy the countryside, and you cut off the city. It cannot live without the countryside. And that’s how they did it every time. They would come in, as I say, in some cases, two years in advance, to clear people out so they would have room for their horses and have pasture for their horses and all. And you take the small towns and then the small cities, and then the last one is the big city. Americans, they said, “No, we’re gonna take Baghdad. We’re gonna bomb Baghdad. We’re gonna have this shock and awe. We’ll go in, we conquered a country from Baghdad.”
So they go in, they get trapped in their little tiny green zone. They never conquer Iraq. The strongest army in the world. This is something that worked in Europe, World War II. Yes, we bombed the cities and we took the city ’cause that was the center of production for the modern era. But the countryside is the place that produces the food. The Mongols were very aware of that, and supplies the water. You cut off the water from the city, you cut off the food for the city. What’s the city going to do? They’re going to surrender. The Americans were applying something that worked in Western Europe to conquer Germany. It did not work to conquer Iraq or Vietnam, or even Northern Korea or Cambodia or Laos or Syria or god know. It worked only in Grenada. I think, in my lifetime, that’s the only successful war we had. Lasted a couple of hours. We went in, conquered the little tiny island. Otherwise, we’ve been chased out of every country. We’ve lost it, tail between our legs.
We dropped more bombs on Cambodia than we dropped on Germany. It’s hard to believe. Hard to believe. We dropped more bombs on Cambodia than on Germany. We did nothing. Because Germany, you destroy the cities, the people surrender. Dresden’s gone, Frankfurt, [inaudible 03:23:07], Berlin. In Cambodia, you can bomb the countryside forever. You can kill the people, and they did. You can use chemical warfare, and they did. And you could still go into the eastern part of Cambodia and you could go to large areas where you don’t hear birds singing because of their chemical warfare of American bombs. So we still do it, but we don’t want to admit it, and we don’t want to go in to win. In World War II, the Americans did have unconditional surrender. Well, I mean, you can support the war, not support the war. We did it right. We did it wrong. These are all issues that people can argue. But we had a clear policy. We go into Afghanistan, we’re fighting terror. We’re gonna bring democracy, we’re gonna free the women. What? I mean, it’s absolute sheer insanity, the things that we did.
Jack Weatherford
It’s absolute sheer insanity, the things that we did, and we kill people. Not only did we use chemical warfare and kill a lot of people in Vietnam and Laos and Cambodia, we killed American soldiers. We killed American soldiers, and my father was one. He died from Agent Orange disease. Oh, but that doesn’t count. He didn’t die on the battlefield and we didn’t mean to kill him. It doesn’t count. Modern warfare is brutal and we just paper over it sometimes.
It’s absolute sheer insanity, the things that we did, and we kill people. Not only did we use chemical warfare and kill a lot of people in Vietnam and Laos and Cambodia, we killed American soldiers. We killed American soldiers, and my father was one. He died from Agent Orange disease. Oh, but that doesn’t count. He didn’t die on the battlefield and we didn’t mean to kill him. It doesn’t count. Modern warfare is brutal and we just paper over it sometimes.
Lex Fridman
Can you explain Agent Orange?
Can you explain Agent Orange?
Jack Weatherford
It was designed to kill all vegetation. This is going to be a humane way. We’re going to kill all the vegetation in the jungle, and that way they can stop moving the army through the jungle and they can stop the supplies from coming. That was the American strategy. Yeah. Henry Kissinger, Nobel Prize winner, he is now resting in hell, is exactly where he belongs for what he did to Vietnam, Laos, and Cambodia. The bombing was just absolutely horrendous. So Agent Orange comes in, they defoliated, which means they wiped out the crops so people are starving. Literally in the case of Cambodia, starving to death. The animals are being killed and deformed children are being born to this day, and American soldiers died by the thousands. Not immediately. Not on the battlefield, not right there.
It was designed to kill all vegetation. This is going to be a humane way. We’re going to kill all the vegetation in the jungle, and that way they can stop moving the army through the jungle and they can stop the supplies from coming. That was the American strategy. Yeah. Henry Kissinger, Nobel Prize winner, he is now resting in hell, is exactly where he belongs for what he did to Vietnam, Laos, and Cambodia. The bombing was just absolutely horrendous. So Agent Orange comes in, they defoliated, which means they wiped out the crops so people are starving. Literally in the case of Cambodia, starving to death. The animals are being killed and deformed children are being born to this day, and American soldiers died by the thousands. Not immediately. Not on the battlefield, not right there.
They go home, they have the disease, they linger. They take the whole family down with them in an emotional trauma of becoming slowly paralyzed and dying. We did that to our own people. So yeah, warfare. I don’t think we’re any more humane with it any better today than in the past. It’s just we can hide parts of it more easily and deny it more easily. If you’re killed by a Mongol, it’s very clear you’re killed by a Mongol. You’re killed by friendly fire in American war, it’s a different matter.
Lex Fridman
It seems that what people mean when they say that war is hell, that in some deep sense, everybody loses no matter the narrative you put on top of it.
It seems that what people mean when they say that war is hell, that in some deep sense, everybody loses no matter the narrative you put on top of it.
Jack Weatherford
Yes, yes. I’m not a pacifist again, but I think war is acceptable in some situations, but the more controlled it is, the better. My effort is not to do away with all the things that happened under Chinggis Khan with the brutality and all like that, but it’s to measure it against what goes on today in the world today. And we have different images. There are two images of Chinggis Khan. One is our image. He’s a barbarian on a horseback killing people and raping women all the time. The other image is the Mongolian image. And when they finally built an official statue of him in this century, for the 800th anniversary of his founding of Mongolia, they had to think about how to present him to the world and to themselves, and they chose the Lincoln Memorial as the model.
Yes, yes. I’m not a pacifist again, but I think war is acceptable in some situations, but the more controlled it is, the better. My effort is not to do away with all the things that happened under Chinggis Khan with the brutality and all like that, but it’s to measure it against what goes on today in the world today. And we have different images. There are two images of Chinggis Khan. One is our image. He’s a barbarian on a horseback killing people and raping women all the time. The other image is the Mongolian image. And when they finally built an official statue of him in this century, for the 800th anniversary of his founding of Mongolia, they had to think about how to present him to the world and to themselves, and they chose the Lincoln Memorial as the model.
He was the late great law giver of the Mongol nation. And so he seated there in front of the Mongolian parliament. There’s another statue that’s better known, but it was a private enterprise that created him on horseback, but not with a weapon. But he’s on horseback out in the countryside. But the official one from the government is Chinggis Khan seated like Abraham Lincoln, and they issued stamps to show that he is the great law giver.
Lex Fridman
And the truth is somewhere in between, I suppose.
And the truth is somewhere in between, I suppose.
Jack Weatherford
Well, or depending on where you are and how you want to see it.
Well, or depending on where you are and how you want to see it.
Lex Fridman
Yeah.
Yeah.
Jack Weatherford
There are many things that happened that were terrible and horrible, and for people who lose a war, it’s going to always be terrible and horrible.
There are many things that happened that were terrible and horrible, and for people who lose a war, it’s going to always be terrible and horrible.
Lex Fridman
Yeah. Let’s return back to Chinggis Khan’s life and the end of it. How and where did he die?
Yeah. Let’s return back to Chinggis Khan’s life and the end of it. How and where did he die?
Jack Weatherford
After conquering the Khwarazmian Empire in Central Asia, Chinggis Khan returned and then they had a great, what they called Naadam, a great celebration that went on for a whole summer just about, and they had so much wealth to distribute to everybody, and everybody is being given all kinds of things for what they have done and including the people who helped saved him when he was in the cank in the ox yoke. They were rewarded with… Everybody was rewarded. It was a great time. But the first place he had attacked outside was the Tangut Nation, and they had sworn allegiance to him. And then when he went off to the Middle East, they refused to send troops. He didn’t forget that. He’s going back to the Tangut Nation and he’s going to conquer them again. As he was crossing the Gobi, which takes a while and you’re crossing the Gobi, he was distracted a little bit by hunting the khulan, which is the wild… We say the wild ass, or I used to say wild horse. It sounds a little better, but the khulan to say khulan of the Gobi, he was off hunting khulan.
After conquering the Khwarazmian Empire in Central Asia, Chinggis Khan returned and then they had a great, what they called Naadam, a great celebration that went on for a whole summer just about, and they had so much wealth to distribute to everybody, and everybody is being given all kinds of things for what they have done and including the people who helped saved him when he was in the cank in the ox yoke. They were rewarded with… Everybody was rewarded. It was a great time. But the first place he had attacked outside was the Tangut Nation, and they had sworn allegiance to him. And then when he went off to the Middle East, they refused to send troops. He didn’t forget that. He’s going back to the Tangut Nation and he’s going to conquer them again. As he was crossing the Gobi, which takes a while and you’re crossing the Gobi, he was distracted a little bit by hunting the khulan, which is the wild… We say the wild ass, or I used to say wild horse. It sounds a little better, but the khulan to say khulan of the Gobi, he was off hunting khulan.
He fell from his horse and he injured his leg very badly, and he seemed to decline from that point, and it took some number of months before August of 1227. He was very much near the end of life. You can read online the exact date, and it’s all very specific. But the truth is we don’t know exactly which day he died in that time because one of his wives was running the camp and they were keeping it secret until the defeat of the Tangut was completed. And the Tangut offered all kinds of things for the Mongols to go away again the second time. And Chinggis Khan told his family, “No, accept nothing. And then when they surrender, you kill the royal family, kill them all.” So that the idea, they were Buddhist people, the Tanguts were Buddhists, and the idea was usually you can be reborn into your own family. But he said, “No, you kill off the whole family, so they can’t be reborn.” So he died there.
Lex Fridman
How was the successor chosen?
How was the successor chosen?
Jack Weatherford
Oh, the succession issue was always difficult. He did not have the right to appoint a successor. That was not the Mongol way. He could nominate somebody. So before he set off for the Middle Eastern campaign, one of his wives said to him, “Even the biggest tree falls. You’ve got to make a plan and talk to your sons about the future.” So he did. He called the sons together. So this is Jochi, the oldest boy who was born while the father was allied with his anda Jamukha, and he was named Visitor, Jochi. And then the next one was Chagatai, and the next one was Ogedei.
Oh, the succession issue was always difficult. He did not have the right to appoint a successor. That was not the Mongol way. He could nominate somebody. So before he set off for the Middle Eastern campaign, one of his wives said to him, “Even the biggest tree falls. You’ve got to make a plan and talk to your sons about the future.” So he did. He called the sons together. So this is Jochi, the oldest boy who was born while the father was allied with his anda Jamukha, and he was named Visitor, Jochi. And then the next one was Chagatai, and the next one was Ogedei.
And the next one was Tolui, the father of Kublai Khan. But he was still alive at this point. So all four of them came. So Chinggis Khan explained to them he wanted to talk about the succession and to get some consensus from them about the succession. And so he said… The Mongols always call on people to speak by order of age. They also serve tea or food, anything by order of age. It’s always done that way from then until now. So he called first on Jochi. And he said, “What do you say, Jochi?” Chinggis Khan favored Jochi. This is the one who was questionable paternity, but he always favored him. The youngest Tolui was too hotheaded. Ogedei was a heavy drinker. Chagatai was very rigid about the law of the Mongols and all, but he seemed to favor Jochi as a good warrior but reasonable person.
But he called on Jochi, “My son, speak.” Chagatai, the second one who believed in Mongol law supposedly, he jumped up and he said… This is when he accused his father of all kinds. He said, “How can you call on this Mongol, this Merkit bastard? If you call on him first, that means you want him to be the Great Khan. He should not be the Great Khan of the Mongol Empire. This is Mongol Empire now.” On and on. You can imagine kind of scene. Well, Chinggis Khan is the greatest ruler in the world. He’s sitting there being lectured by his second son, and this is when he gave that impassioned speech to his… Actually, the way the secret history, it makes it look like it was his assistant speaker who said it because very often the great power doesn’t say the words directly. They let somebody else say them for them. They have a spokesperson. But anyway, I think it was his words, and I think he said them on that day.
That’s what I think on this business of, “You do not know. You were not there. The stars were moving in the sky, the head was turning around, the Earth was turning over. You do not know who loved who. You do not know who your mother loved. You do not know what your mother did. And if I say he is my son, who are you to say he is not my son?”
Lex Fridman
By the way, really high integrity, really respectable to do that.
By the way, really high integrity, really respectable to do that.
Jack Weatherford
Yes.
Yes.
Lex Fridman
To have that respect and honor his wife in this way.
To have that respect and honor his wife in this way.
Jack Weatherford
Yes.
Yes.
Lex Fridman
And his son in this way. It’s really powerful.
And his son in this way. It’s really powerful.
Jack Weatherford
I believe that I don’t know if she was alive at this point or not. We do not have the death recorded. Mongols are not good at recording death. They don’t. They usually just say somebody finished their age or they have some euphemism for it. But he made that impassioned speech and Chagatai had to submit, and he said, “Yes, you are our father, and we accept what you say. But a deer shot with words cannot be loaded on a horse. A deer shot with words cannot be eaten.”
I believe that I don’t know if she was alive at this point or not. We do not have the death recorded. Mongols are not good at recording death. They don’t. They usually just say somebody finished their age or they have some euphemism for it. But he made that impassioned speech and Chagatai had to submit, and he said, “Yes, you are our father, and we accept what you say. But a deer shot with words cannot be loaded on a horse. A deer shot with words cannot be eaten.”
So Chinggis Khan knew. So he said to the boys… The boys. These are middle-aged men. They’re not boys. He said to the men, “What do you want to do? What do you want to do?” And he said, “I don’t favor Chagatai because of his attitude and the situation and Tolui is still hot-headed.” He actually end up being drunk and dying early. But the other guys, they said, “Well, Ogedei.” They chose him because he was the most generous and the bon vivant. He was for every party and drinking every time. And yeah, one time, Shigi Qutuqu the great judge who wrote The Secret History, Shigi Qutuqu was sleeping on a cart one time for whatever reason. I don’t know what. I think he also had passed out drunk perhaps, but Ogedei came out drunk and grabbed him up and pulled him back into the party. Ogedei was a party guy.
And so he was chosen as the next Great Khan of the Mongol Empire. But fortunately, there was sort of a plan B, and that Chinggis Khan had set up very powerful women, his daughters, but also he had chosen wives for each of his sons, very, very capable wives. And for Ogedei, he had a wife who wasn’t even his first wife. The first wife would usually be somebody closer by certain clan or something. But he had a very intelligent woman named Toregene. And then she was more or less ruling in his last few years. And then after he died, she ruled Empire in her own name. She was the ruler of the greatest empire in world ever ruled by a woman.
Lex Fridman
It’s incredible. The genius of Genghis to set it up that way.
It’s incredible. The genius of Genghis to set it up that way.
Jack Weatherford
Yes.
Yes.
Lex Fridman
There’s probably very widespread discrimination of women at that time. And to have not care about any of that and just making the right decision.
There’s probably very widespread discrimination of women at that time. And to have not care about any of that and just making the right decision.
Jack Weatherford
Yes.
Yes.
Lex Fridman
For what will keep the Empire together.
For what will keep the Empire together.
Jack Weatherford
And Toregene was… Actually, there was peace. She stopped all campaigns. There was peace during her time. And the women such as Toregene and others were extremely into economics and trade and running these, they had these private corporations called [foreign language 03:37:05]. She was running her [foreign language 03:37:07] and everything. So she became much more interested in economics of the trade and running the Empire. And it was a time of peace. And she recognized that peace was better for trade. It was better. And so it was a peaceful time. But like all of us, we have our weak points, and she favored a worthless son to become the successor. And none of the sons actually were great, but Ogedei had favored another. But anyway, she favored Guyuk, her son. And so she arranged to have him made a great emperor while she was still alive. And she had her primary minister was also a woman named Fatima from the Middle East. And unfortunately, Guyuk organized a purge of her court and killed off a lot of these people who had been supporting her.
And Toregene was… Actually, there was peace. She stopped all campaigns. There was peace during her time. And the women such as Toregene and others were extremely into economics and trade and running these, they had these private corporations called [foreign language 03:37:05]. She was running her [foreign language 03:37:07] and everything. So she became much more interested in economics of the trade and running the Empire. And it was a time of peace. And she recognized that peace was better for trade. It was better. And so it was a peaceful time. But like all of us, we have our weak points, and she favored a worthless son to become the successor. And none of the sons actually were great, but Ogedei had favored another. But anyway, she favored Guyuk, her son. And so she arranged to have him made a great emperor while she was still alive. And she had her primary minister was also a woman named Fatima from the Middle East. And unfortunately, Guyuk organized a purge of her court and killed off a lot of these people who had been supporting her.
And a lot of them were Muslims. And he killed awful lot. And then he was going to march against the Golden Horde because they weren’t supporting him. So he set off and he died. He was only in office for 18 months, and he was gone. And then his wife took over, Oghul Qaimish. Unfortunately, she was not capable as her mother-in-law, Toregene. Oghul Qaimish was a bit greedy, and she didn’t start any new wars, but she just kind of messed up things. And she didn’t rule for too long. And this is why Kublai Khan’s mother, Sorghaghtani, was able to have a revolution. She united with the Golden Horde. She was on one end on China. She had Northern China. The Golden Horde had Russia. The two of them united against the center. And they overthrew Oghul Quaimish. And she put her son, Mongke, in who was succeeded by Kublai Khan.
Lex Fridman
And we should say probably that this whole succession by kin probably goes against the initial spirit-
And we should say probably that this whole succession by kin probably goes against the initial spirit-
Jack Weatherford
Yes.
Yes.
Lex Fridman
… of what Genghis Khan stood for.
… of what Genghis Khan stood for.
Jack Weatherford
Yes. Yes. In the end, he was a father and he favored his sons even knowing they were not so capable. And he had lost a grandson that he loved. But he organized it though, as what we call today, almost a corporation. All lands belonged to everybody in the family, everybody. So Kublai Khan, that’s why he had soldiers. There were Christian soldiers, Ossetian soldiers and Kipchak soldiers. He had 10,000 of each come in. And then the Russians would own silk factories in China. The Ilkhanate would own silk factories and jade mines in China. The people in China, the Mongols, they would own villages in Persia and in Iran. So he organized it all. Everything was owned by the entire clan. It didn’t last too long like that because of the divisions that developed. So the Great Khan was primarily in charge of conquering and expanding the land, so they had more lands to own. That was going to be the job. And Kublai Khan fulfilled it. Mongke Khan, to some extent, fulfilled it. Ogedei did. Guyuk did not.
Yes. Yes. In the end, he was a father and he favored his sons even knowing they were not so capable. And he had lost a grandson that he loved. But he organized it though, as what we call today, almost a corporation. All lands belonged to everybody in the family, everybody. So Kublai Khan, that’s why he had soldiers. There were Christian soldiers, Ossetian soldiers and Kipchak soldiers. He had 10,000 of each come in. And then the Russians would own silk factories in China. The Ilkhanate would own silk factories and jade mines in China. The people in China, the Mongols, they would own villages in Persia and in Iran. So he organized it all. Everything was owned by the entire clan. It didn’t last too long like that because of the divisions that developed. So the Great Khan was primarily in charge of conquering and expanding the land, so they had more lands to own. That was going to be the job. And Kublai Khan fulfilled it. Mongke Khan, to some extent, fulfilled it. Ogedei did. Guyuk did not.
Lex Fridman
This family ruling the land, all the different territories.
This family ruling the land, all the different territories.
Jack Weatherford
Yeah. And they weakened with every generation.
Yeah. And they weakened with every generation.
Lex Fridman
Yeah.
Yeah.
Jack Weatherford
Every generation.
Every generation.
Genetic legacy
Lex Fridman
But that reminds me of a very popular idea about Genghis Khan articulated in the 2003 paper titled The Genetic Legacy of the Mongols. So that paper has a finding that estimates that 0.5% of the world’s male population is descended, direct descendants of Genghis Khan. I’ve heard you kind of be a little bit skeptical of this paper, but I actually really like its findings. I talked to a good friend of mine, Manolis Kellis, who’s a biologist, computational biologist and geneticist, and he likes the paper as well. I find it really convincing. But I think your skepticism has to do not necessarily with the paper’s contents but more the implication that it speaks to the thing that maybe the people who think of Genghis Khan as a brutal barbarian assume that the reason is 0.5% of the population is because of some institutionalized mass rape conducted by Genghis Khan.
But that reminds me of a very popular idea about Genghis Khan articulated in the 2003 paper titled The Genetic Legacy of the Mongols. So that paper has a finding that estimates that 0.5% of the world’s male population is descended, direct descendants of Genghis Khan. I’ve heard you kind of be a little bit skeptical of this paper, but I actually really like its findings. I talked to a good friend of mine, Manolis Kellis, who’s a biologist, computational biologist and geneticist, and he likes the paper as well. I find it really convincing. But I think your skepticism has to do not necessarily with the paper’s contents but more the implication that it speaks to the thing that maybe the people who think of Genghis Khan as a brutal barbarian assume that the reason is 0.5% of the population is because of some institutionalized mass rape conducted by Genghis Khan.
But to me, and we actually spoke about this, you can’t get those kinds of numbers with rape. If you want for the empire to propagate the gene, if you were a person that wanted to propagate the genes, you would make sure that all the lands you conquer are stable, flourishing, and happy. And so actually, this is much better explained in the paper. It indicates this. It’s better explained by it was of high value, like social status value to be associated with the lineage of Genghis Khan. And so that means that for many generations, people loved the Great Khan.
Jack Weatherford
Yes.
Yes.
Lex Fridman
The Genghis Khan. And so in that sense, given how vast the land was, all the transformational effects it has on trade, on culture and so on, it makes total sense. In fact, the 0.5%, just so people understand, is just male descendants. The way it works, that means if this paper is at all correct in its estimate, that the number of people descendant, not direct male descendants, but the way trees work is there’s women on each step.
The Genghis Khan. And so in that sense, given how vast the land was, all the transformational effects it has on trade, on culture and so on, it makes total sense. In fact, the 0.5%, just so people understand, is just male descendants. The way it works, that means if this paper is at all correct in its estimate, that the number of people descendant, not direct male descendants, but the way trees work is there’s women on each step.
Jack Weatherford
Yeah.
Yeah.
Lex Fridman
So the number of descendants could be much larger than that. So I think that’s pretty interesting. And I think there’s singular figures like this in history but none like Genghis.
So the number of descendants could be much larger than that. So I think that’s pretty interesting. And I think there’s singular figures like this in history but none like Genghis.
Jack Weatherford
It’s interesting. It’s fun. Where did they get the DNA from Genghis Khan?
It’s interesting. It’s fun. Where did they get the DNA from Genghis Khan?
Lex Fridman
Oh, yes. So one of the criticism you have is like, well-
Oh, yes. So one of the criticism you have is like, well-
Jack Weatherford
They don’t have one shred of scientific.
They don’t have one shred of scientific.
Lex Fridman
That’s right.
That’s right.
Jack Weatherford
They’re supposed to be scientific. No, they found that a bunch of people are connected.
They’re supposed to be scientific. No, they found that a bunch of people are connected.
Lex Fridman
Yes.
Yes.
Jack Weatherford
And then they choose-
And then they choose-
Lex Fridman
No. To one person. To one person.
No. To one person. To one person.
Jack Weatherford
Yes. But they choose Genghis Khan.
Yes. But they choose Genghis Khan.
Lex Fridman
Right. But who else?
Right. But who else?
Jack Weatherford
There’s no evidence that it was from him. No evidence.
There’s no evidence that it was from him. No evidence.
Lex Fridman
It’s from that time. It’s one person.
It’s from that time. It’s one person.
Jack Weatherford
But from that time or 200 years before?
But from that time or 200 years before?
Lex Fridman
It could be 200 years before.
It could be 200 years before.
Jack Weatherford
Yes. Yes. See, I mean, actually, I would like for it to be true in a certain way. I would, and I do think there is a truth there.
Yes. Yes. See, I mean, actually, I would like for it to be true in a certain way. I would, and I do think there is a truth there.
Lex Fridman
Yeah.
Yeah.
Jack Weatherford
I think that by attaching it to the name of Genghis Khan, they’ve done a disservice to themselves. But it gets a lot of publicity and a lot more funding, and it’s exciting and so on. But I think it’s to that Mongol experience. But Genghis Khan’s descendants were almost every one categorized and recorded. He’s the largest conqueror in the world. You do not have just children popping up all over the place. He had four wives all the time. He had children with two of them.
I think that by attaching it to the name of Genghis Khan, they’ve done a disservice to themselves. But it gets a lot of publicity and a lot more funding, and it’s exciting and so on. But I think it’s to that Mongol experience. But Genghis Khan’s descendants were almost every one categorized and recorded. He’s the largest conqueror in the world. You do not have just children popping up all over the place. He had four wives all the time. He had children with two of them.
That’s not a lot of descendants. We know mostly who they are for many generations. His brother, Qasar, had many more children than he did. Many more. And they caused a lot of problems later on for the Empire too by rivaling the power. So it could be that one of these other people, Bodonchar Deful, could have been the origin of this. It could have been back well before Chinggis Khan. And in Mongolia today, we have nobody who claims descent from Chinggis Khan.
Lex Fridman
Well, claims is a different thing than biology, right?
Well, claims is a different thing than biology, right?
Jack Weatherford
Yes.
Yes.
Lex Fridman
So the reason I say this is this methodology is pretty solid.
So the reason I say this is this methodology is pretty solid.
Jack Weatherford
Oh, I believe that they found some connection of people.
Oh, I believe that they found some connection of people.
Lex Fridman
Yeah. But it’s-
Yeah. But it’s-
Jack Weatherford
They have no evidence-
They have no evidence-
Lex Fridman
That it’s Genghis Khan.
That it’s Genghis Khan.
Jack Weatherford
… that it’s really connected to Chinggis Khan. I think it may be tangentially connected to him.
… that it’s really connected to Chinggis Khan. I think it may be tangentially connected to him.
Lex Fridman
Yeah. But it’s somebody from the Mongolia region.
Yeah. But it’s somebody from the Mongolia region.
Jack Weatherford
Yeah, I think that’s quite possible. But we’ve already had the Hans come through. We’ve had all the Turks.
Yeah, I think that’s quite possible. But we’ve already had the Hans come through. We’ve had all the Turks.
Lex Fridman
Yes. Yeah.
Yes. Yeah.
Jack Weatherford
Every one of the Turkic nations is descended from Mongolia.
Every one of the Turkic nations is descended from Mongolia.
Lex Fridman
Yeah.
Yeah.
Jack Weatherford
They all came out of Mongolia.
They all came out of Mongolia.
Lex Fridman
I mean, you’re right. You’re right.
I mean, you’re right. You’re right.
Jack Weatherford
On the other hand, I wish they could get some proof. I wish it could be true.
On the other hand, I wish they could get some proof. I wish it could be true.
Lex Fridman
Yeah.
Yeah.
Jack Weatherford
I just can’t believe it the way it is. We have no DNA. Nobody knows where he went.
I just can’t believe it the way it is. We have no DNA. Nobody knows where he went.
Lex Fridman
They don’t. So they don’t know where he’s buried?
They don’t. So they don’t know where he’s buried?
Jack Weatherford
Okay. Chinggis Khan said, “Let my body go, let my nation live.” And he chose to be buried in an unmarked grave. And the Mongols believe very strongly, it should always be that way. Most of the Khans who followed him were also buried in a similar way. The Chinese emperors were buried in very elaborate tombs, but not the Yuan dynasty. No. And so Kublai Khan was buried back with his grandfather in an anonymous grave.
Okay. Chinggis Khan said, “Let my body go, let my nation live.” And he chose to be buried in an unmarked grave. And the Mongols believe very strongly, it should always be that way. Most of the Khans who followed him were also buried in a similar way. The Chinese emperors were buried in very elaborate tombs, but not the Yuan dynasty. No. And so Kublai Khan was buried back with his grandfather in an anonymous grave.
And not everyone, like Guyuk died when he was on campaign towards Russia. He was died out there. I mean he was buried out there. I think his father, Ogedei, was also buried out there. That was more their homeland, but many of them were buried with him. And it’s known and not known at the same time. Officially you should not know it. You cannot know it. It should never be disturbed. He should never be disturbed. We’re not going to have a tour group coming in.
Lex Fridman
But you’re saying like the people of Mongolia, they have a sense.
But you’re saying like the people of Mongolia, they have a sense.
Jack Weatherford
They believe he’s in a certain place. Yes. And they believe they know where the place is. But it’s sacred. You can do nothing, nothing. Just leave it as it is. That’s no roads, no buildings, no killing of animals, no chopping of trees. Nothing can be done. It’s a holy land dedicated to him and his family.
They believe he’s in a certain place. Yes. And they believe they know where the place is. But it’s sacred. You can do nothing, nothing. Just leave it as it is. That’s no roads, no buildings, no killing of animals, no chopping of trees. Nothing can be done. It’s a holy land dedicated to him and his family.
Lex Fridman
It’s pretty amazing. Unmarked grave.
It’s pretty amazing. Unmarked grave.
Jack Weatherford
Yes.
Yes.
Lex Fridman
For the greatest conqueror in the history of humanity.
For the greatest conqueror in the history of humanity.
Jack Weatherford
Yeah.
Yeah.
Lex Fridman
For good and for bad, the most impactful, one of the most impactful humans in history.
For good and for bad, the most impactful, one of the most impactful humans in history.
Jack Weatherford
Yes. I believe in his thing about let my nation live. Let my body go.
Yes. I believe in his thing about let my nation live. Let my body go.
Lex Fridman
Yeah.
Yeah.
Jack Weatherford
And I say to people, they ask me, “Well, what did he look like?” And I say, “Well, the portrait was painted 50 years later by somebody who never saw him.” And actually, if you look at the portrait of Kublai Khan and Genghis Khan, they look alike except one’s old and one’s younger. And I think that’s because Kublai was trying to establish, he wanted to establish his legitimacy as a real Mongol that they looked alike. But his grandfather said he didn’t. And then Ogedei Khan and Mongke Khan looked different. They looked different. So there was nothing. But I say, “If you want to see the face of Genghis Khan, walk in any ger in Mongolia. The first child you see, that’s the face of Genghis Khan. It’s his nation. He created that nation. That’s his face.”
And I say to people, they ask me, “Well, what did he look like?” And I say, “Well, the portrait was painted 50 years later by somebody who never saw him.” And actually, if you look at the portrait of Kublai Khan and Genghis Khan, they look alike except one’s old and one’s younger. And I think that’s because Kublai was trying to establish, he wanted to establish his legitimacy as a real Mongol that they looked alike. But his grandfather said he didn’t. And then Ogedei Khan and Mongke Khan looked different. They looked different. So there was nothing. But I say, “If you want to see the face of Genghis Khan, walk in any ger in Mongolia. The first child you see, that’s the face of Genghis Khan. It’s his nation. He created that nation. That’s his face.”
Lex Fridman
Does that make you sad that there is no, from his time, capturing of his image, that he really made himself sort of disappear into the land? Does that make you sad?
Does that make you sad that there is no, from his time, capturing of his image, that he really made himself sort of disappear into the land? Does that make you sad?
Jack Weatherford
No, not at all. No, because he’s everywhere. When you have these clans that are still operating in Afghanistan, and the Russians are still using the Yam system, there are many aspects of him that are out there in the world. And I think I find personally inspiration the same way that Thomas Jefferson did.
No, not at all. No, because he’s everywhere. When you have these clans that are still operating in Afghanistan, and the Russians are still using the Yam system, there are many aspects of him that are out there in the world. And I think I find personally inspiration the same way that Thomas Jefferson did.
He found so much inspiration in the life of Genghis Khan and the books of Genghis Khan that you can still read. He bought so many copies and gave to the Library of Congress, to the Library of Virginia, the University of Virginia, and to his granddaughter. These ideas live on, and we still have not fulfilled them. We do not have religious freedom. We do not have the protections for women. We do not have the protections for envoys and ambassadors. The ideas live on, and the rulers do not live as the common people to eat the same food, wear the same clothes, sleep in the same, but not a bed in his case, but sleep in the same situation and simple home. No.
Lex Fridman
I have tremendous respect for leaders that live just as the people who they lead.
I have tremendous respect for leaders that live just as the people who they lead.
Jack Weatherford
Yes.
Yes.
Lessons from Genghis Khan
Lex Fridman
It’s mostly not done. But when it is, have just infinite respect for that. That is the way. What lessons can we learn from Genghis Khan that apply to the modern world? You’ve already said religious freedom, some of these ideas.
It’s mostly not done. But when it is, have just infinite respect for that. That is the way. What lessons can we learn from Genghis Khan that apply to the modern world? You’ve already said religious freedom, some of these ideas.
Jack Weatherford
Well, I think his policy ideas I think are important. We can still learn from that about protection of diplomats, not buying and selling women, not kidnapping women and having religious freedom of individuals. But also he had interesting things. He had tax-free status for all religions, all physicians and all teachers. They didn’t pay taxes in his Empire. As a former teacher, I embrace that idea out of pure greed and self-interest. But it’s not, to me, the idea of saving the money. It’s the idea of focusing on that as something important for the society. He didn’t say tax-free for any other category of people, as I recall, just for those. And he’s highlighting the health of the people, the education of the people, and the spirit of the people there spiritually. That’s very important. That’s a profound approach to life. And so these are policies, and I’m not advocating so much to policies, but I think some of the general principles of being willing to learn from our mistakes. Admit your mistake to yourself, correct it and go on with your life.
Well, I think his policy ideas I think are important. We can still learn from that about protection of diplomats, not buying and selling women, not kidnapping women and having religious freedom of individuals. But also he had interesting things. He had tax-free status for all religions, all physicians and all teachers. They didn’t pay taxes in his Empire. As a former teacher, I embrace that idea out of pure greed and self-interest. But it’s not, to me, the idea of saving the money. It’s the idea of focusing on that as something important for the society. He didn’t say tax-free for any other category of people, as I recall, just for those. And he’s highlighting the health of the people, the education of the people, and the spirit of the people there spiritually. That’s very important. That’s a profound approach to life. And so these are policies, and I’m not advocating so much to policies, but I think some of the general principles of being willing to learn from our mistakes. Admit your mistake to yourself, correct it and go on with your life.
All of us say it’s important, but we don’t do it for the most part. We don’t learn from our failures as much as we think. The other idea of promoting people on ability, I think that’s certainly an idea that is very valuable, not in the simple way of meritocracy that we’ve done it with. Oh, if you pass the exam with this score, you get this or that. But really evaluating people and their ability, I think it’s a very good thing. Not the only thing, but I think it’s very important. And even though he failed in the end in his own life, and he turned power over to his sons and his family, it’s a principle that he lived by most of his life, and we can learn from that principle. The other thing I think is just his global feel for the world. His global understanding. Here was a man who had had no education in any formal sense.
And he had this sense that the world should be united. We should have things that unite all people. Everybody should have their own law, but there should be a higher law of heaven that governs people. And this later was translated, everybody should have their own language, but they all write the same alphabet by Kublai Khan. It didn’t work. Or his idea, he tried to impose the use of paper currency in Iran, the Persian Ilkhanate Chinese paper money. It didn’t work. The people there weren’t used to it but all this international spirit of their Empire, I think that we need today. We talk about, oh, globalization, we’re all connected, it’s just incredible. And we’re more provincial than ever. We are just so provincial, and sometimes we use all this technology to help preserve our provincialism. And we can’t think in global terms. We can’t think about the world. It’s just amazing to me how narrow-minded we are.
Lex Fridman
I also saw the Mongol proverb of, “If you’re afraid, don’t do it. If you do it, don’t be afraid.”
I also saw the Mongol proverb of, “If you’re afraid, don’t do it. If you do it, don’t be afraid.”
Jack Weatherford
Yes.
Yes.
Lex Fridman
That you especially celebrate. There is something to that. In many ways, Genghis Khan is a representation of a person, of a self-made man. That person from nothing.
That you especially celebrate. There is something to that. In many ways, Genghis Khan is a representation of a person, of a self-made man. That person from nothing.
Jack Weatherford
Yes.
Yes.
Lex Fridman
Willed an entire empire into existence.
Willed an entire empire into existence.
Jack Weatherford
Yes. And everything against him that you can think of. Your own family deserting you, your father dying at an early age, all these things like that. But as Jamukha said, he had a good mother and he had a good wife. And there were many crucial points at which it was either his mother or his wife who made the deciding point. His wife, Borte was the one who caused the first break with Jamukha to go away. Later on when the shamans had become too powerful, and they had humiliated his younger brother, she was the one who said he had to clamp down on the shamans who were exercising too much power. And she guided him a lot.
Yes. And everything against him that you can think of. Your own family deserting you, your father dying at an early age, all these things like that. But as Jamukha said, he had a good mother and he had a good wife. And there were many crucial points at which it was either his mother or his wife who made the deciding point. His wife, Borte was the one who caused the first break with Jamukha to go away. Later on when the shamans had become too powerful, and they had humiliated his younger brother, she was the one who said he had to clamp down on the shamans who were exercising too much power. And she guided him a lot.
Lex Fridman
It cannot be understated how important and critical women are in this story of the Mongol Empire.
It cannot be understated how important and critical women are in this story of the Mongol Empire.
Jack Weatherford
Yes.
Yes.
Lex Fridman
It’s fascinating.
It’s fascinating.
Jack Weatherford
Yes. And sometimes because they’re not behind the scenes because they’re always out front. In the Mongol Court, they always sat up front. They were always out front. And this horrified the Chinese who were very good… It horrified the Muslims. It horrified the Christians. They didn’t know what to… They say, “The women even drink in public.” Okay, yeah, they drink in public. They do what? So sometimes it was like that, but other times it is with Toregene. She’s actually the ruler or the case of his daughters, such as Alaqa Beki, who ruled over a part of northern China called the Angut people, and other daughters who ruled over different… They ruled in their own names. And this is something about The Secret History that upset me. All the sections are numbered. I get to chapter or number or section 215, and there’s only half a sentence left.
Yes. And sometimes because they’re not behind the scenes because they’re always out front. In the Mongol Court, they always sat up front. They were always out front. And this horrified the Chinese who were very good… It horrified the Muslims. It horrified the Christians. They didn’t know what to… They say, “The women even drink in public.” Okay, yeah, they drink in public. They do what? So sometimes it was like that, but other times it is with Toregene. She’s actually the ruler or the case of his daughters, such as Alaqa Beki, who ruled over a part of northern China called the Angut people, and other daughters who ruled over different… They ruled in their own names. And this is something about The Secret History that upset me. All the sections are numbered. I get to chapter or number or section 215, and there’s only half a sentence left.
In 214, he’s just awarded a girl he calls his daughter, so she’s probably a clan daughter, but she lives with his mother at this point. His youngest son, Tolui, is only four years old. A tatar comes and Mother Hoelun gives him food because you food everybody. He realized this is the mother of Chinggis Khan, and that’s the child of Chinggis Khan. He grabs him up and kidnaps him and runs out, and he’s holding the child in one hand, and he’s pulling out a knife with another hand. Altani raced out and she grabbed his arm and held it down. And two men, Jebe and Jelme, they were back behind the ger, slaughtering an ox with an ax because you have to do it in the shade behind the ger. You don’t do it in the light. And so they were back there doing that. So they raced out with ax and they kill the man.
And so then Chinggis Khan is rewarding everybody for all their great deeds. And Jelme and Jebe, they wanted to be rewarded for saving the life of Tolui. He said, “No, you killed a tatar. Altani saved his life because she held the hand that had the knife until you got there to kill him. She saved it, and now we reward her.” So he’s finished that story in 214. We get to 215. He says, “Now, let us reward our daughters.” It’s actually only a phrase. I said it as a complete sentence, but it’s not quite complete. The rest is gone, cut out. It’s missing. And I was just so…
Jack Weatherford
It’s missing. And I was just so … And I looked at all these different translations of how to different language, and most often they translate it as, and now let us marry our daughters. Oh, no. Oh, no. He was very clear in his wedding speeches to his daughters, “I give these people to you to rule. You have three husbands. You have your honor, you have your nation, and you have the man that I give to you, but the man I give to you goes in the army with me and brings his soldiers.”
It’s missing. And I was just so … And I looked at all these different translations of how to different language, and most often they translate it as, and now let us marry our daughters. Oh, no. Oh, no. He was very clear in his wedding speeches to his daughters, “I give these people to you to rule. You have three husbands. You have your honor, you have your nation, and you have the man that I give to you, but the man I give to you goes in the army with me and brings his soldiers.”
Lex Fridman
Genius.
Genius.
Jack Weatherford
You stay here and rule it to people.
You stay here and rule it to people.
Lex Fridman
Brilliant.
Brilliant.
Jack Weatherford
The Chinese, when they arrived in the court of Al Thani, they didn’t know what to think. There she is ruling this area of the Angut people and they said, “Well, she can read and write and she’s a supreme judge and she doesn’t allow any death sentence without her permission.” But they didn’t say which languages she could read and write. That has really puzzled me a lot.
The Chinese, when they arrived in the court of Al Thani, they didn’t know what to think. There she is ruling this area of the Angut people and they said, “Well, she can read and write and she’s a supreme judge and she doesn’t allow any death sentence without her permission.” But they didn’t say which languages she could read and write. That has really puzzled me a lot.
Lex Fridman
So, you’re saying the secret history as we have gotten access to, has been edited to remove the significance of women even though they’re still there?
So, you’re saying the secret history as we have gotten access to, has been edited to remove the significance of women even though they’re still there?
Jack Weatherford
In that case. I mean, other cases with his mother, they did not and all. But I think in that case, because what happened is most of these women had few offsprings because their husband was gone to war and Al Thani, of course, she married several times, sometimes sons of the last one. But they were going off to war and they weren’t reproducing there. Only one Checheyigen who was ruling in Siberia, she was the one who had a whole bunch of daughters. They wouldn’t be going off to war. And so, they actually spread out through the empire and had a lot of power later.
In that case. I mean, other cases with his mother, they did not and all. But I think in that case, because what happened is most of these women had few offsprings because their husband was gone to war and Al Thani, of course, she married several times, sometimes sons of the last one. But they were going off to war and they weren’t reproducing there. Only one Checheyigen who was ruling in Siberia, she was the one who had a whole bunch of daughters. They wouldn’t be going off to war. And so, they actually spread out through the empire and had a lot of power later.
But what happened was the area for Alakhai Bekhi, for example, was then taken over by Kublai Khan and then all the Turkey areas, one by one, were taken over by their nephews as they died out, not in their own lifetime, they didn’t kill the women off. But as they died out, the men took it over. And so, then they just wanted to erase it. It’s like, “No. Northern China, even though it was ruled by Sorghaghtani, it always was Mongol.” She was ruling because her husband was Mongol and her sons were Mongol. Therefore, they had the right to rule it. So, they cut out the women for those reasons.
I think anytime it threatened the power of a particular man, then there are other little things that are added in there. Sometimes you can find a phrase and …
Lex Fridman
This does not fit.
This does not fit.
Jack Weatherford
That phrase was not in the original.
That phrase was not in the original.
Human nature
Lex Fridman
Yeah. In studying human history, what have you learned about human nature and just the trajectory of humanity throughout the past several millennia?
Yeah. In studying human history, what have you learned about human nature and just the trajectory of humanity throughout the past several millennia?
Jack Weatherford
I tend to have a certain love for individuals and persons, but not a love for people, in general, and especially not for institutions. I tend to have a great suspicion about almost everything and mistrust in institutions over and over, and I think that’s my own prejudice, and then I find reasons to support that. And Genghis Khan was very good at destroying a lot of institutions or bringing them to heel within his empire. So, then I like that and I stress that and I see those things. I think that’s one thing.
I tend to have a certain love for individuals and persons, but not a love for people, in general, and especially not for institutions. I tend to have a great suspicion about almost everything and mistrust in institutions over and over, and I think that’s my own prejudice, and then I find reasons to support that. And Genghis Khan was very good at destroying a lot of institutions or bringing them to heel within his empire. So, then I like that and I stress that and I see those things. I think that’s one thing.
But other things that I learned from the Mongol people in general, not just about their history and all, but how it’s possible to live for thousands of years in a place that for many people it’s not the most beautiful in the world. It’s austere. You have a band of mountains and with some trees, and then big band of steppe and then a big band of sand, gravel, desert, the Gobi. And for many people, it’s not appealing. It’s just open. There’s too much space. It’s like we need to build something over here. Boy, you could have a condo right there. We could have a building and we could sell them off.
They haven’t given into that. They really value their country. They protect their country. Even now, only 1% is privately owned. They keep it down. And Mongolian records, farm and city count is one category. Just it’s settled people. It doesn’t matter. You settle on a farm, you settle in a city, settled people, one category. And they lived there in this land that Genghis Khan would return to and love. If he returned to the capital city, he would not know where he was. He would have no idea. And all the people would just say, “Oh, big Mongolian.” “I’m Mongolian. Yeah. I’m Mongol. I have the hat. I have the belt buckle. I have all the deel that’s all embroidered. Yeah. I’m Mongol.”
And Genghis Khan would say, “Where’s your horse?” “Oh, keep it in the countryside.” But he wouldn’t recognize the city. But it’s still his country, his people, they worship him in a literal sense, not the way we would worship God asking for favors, but in the sense of worshiping him with praise. They have so many songs to praise him. And about half of the hip-hop in the country is in praise of Genghis Khan. It’s something we can’t understand, because when we pray, we’re usually saying, “Oh, thank you God for this and that and the other, and you’re so wonderful and I love you, so would you please give me and would you please do this, and would you please stop this pain in my knee?” We’re asking for things all over the place. But Genghis Khan, no, no, no one ever asks for anything. They just honor him. They just praise him and honor him.
Visiting Mongolia
Lex Fridman
If I wanted to visit Mongolia, what would you recommend? What’s the right way?
If I wanted to visit Mongolia, what would you recommend? What’s the right way?
Jack Weatherford
Well, start with my home. Let’s start there. You come over there. It’s a nice valley. I have a nice valley there. I think almost any direction you go outside of the city is going to be interesting. It depends a little bit on your purpose. Most people go south to the Gobi and they do a loop to the Gobi and around to Karakorum, Kharkhorin, the old capital from Ogedei Khan, but it was abandoned by Kublai Khan. And then they circle back to the city and they may stop off to see what we call Przewalski, the wild horse, but they call it Kaktakhi, to see the takhi. Or they may go up to Khovsgol Lake, a big beautiful lake, somewhat like Baikal, but much smaller.
Well, start with my home. Let’s start there. You come over there. It’s a nice valley. I have a nice valley there. I think almost any direction you go outside of the city is going to be interesting. It depends a little bit on your purpose. Most people go south to the Gobi and they do a loop to the Gobi and around to Karakorum, Kharkhorin, the old capital from Ogedei Khan, but it was abandoned by Kublai Khan. And then they circle back to the city and they may stop off to see what we call Przewalski, the wild horse, but they call it Kaktakhi, to see the takhi. Or they may go up to Khovsgol Lake, a big beautiful lake, somewhat like Baikal, but much smaller.
So, that’s a beautiful trip. If you want to see the more Turkic area where they hunt with eagles, the far west is where the Kazakh people live. And the mountains are absolutely incredibly beautiful. Most mountains in Mongolia are gentle, beautiful but gentle. The farther west you go, the more dramatic they become, the more pointed and peaked and snow covered. Then if you go to the Eastern Mongolia, it tends to be very flat. There are massive, massive flocks of cranes that come in every year, millions and millions of cranes. There are also tundra swans that come in and golden ducks and all kinds of beautiful birds out there. And so, each area has something special.
If you want, particularly the history of Genghis Khan, the Mongolians love him, they worship him, but they don’t do too much to capitalize on his home area, the Khentii. You can go to the Khentii. There are areas you cannot go to. Large, large areas, it’s forbidden. But you can go. But they don’t capitalize like, “This is the place.” No. They go there themselves out of respect. But the only one place, they built this statue of him, which is the largest equestrian statue in the world, but it’s the place where they say he found his whip, which is when he was coming back from being at the camp of asking Orgal Khan or Toghrul Khan or Wang Khan to support him. And he’s coming back to his family and on the way, he supposedly found a whip there, which is just a small stick with a couple of strands of rawhide at the end of it that’s used.
But for the Mongolians, it’s a symbolic thing. Because obviously, it’s used for a horse. But for the Mongols, your destiny, yourself is your Khiimori, your wind horse that lives inside of you, your wind horse that guides you and gives you opportunities. But it’s up to you to ride that wind horse. It’s up to you to use the wind horse, not to just go wild with the wind horse. And so, I think it’s at that crucial moment. He’s on his way back home to go with Jamukha and the other soldiers to the market to rescue Börte. And so, symbolically, he found a whip there. But I think it means that he found the way to control his destiny, his fate. It’s very important, very important.
Lex Fridman
And that he did, that was the beginning of everything.
And that he did, that was the beginning of everything.
Jack Weatherford
Yes. And it symbolized in that statue. Some people think that he’s holding this stick, that it’s baton or something like that. But no, it’s that what they call a whip or tashuur.
Yes. And it symbolized in that statue. Some people think that he’s holding this stick, that it’s baton or something like that. But no, it’s that what they call a whip or tashuur.
Lex Fridman
We’ve talked a lot about the past. If we look out into the future, what gives you hope for human civilization, for us humans?
We’ve talked a lot about the past. If we look out into the future, what gives you hope for human civilization, for us humans?
Jack Weatherford
Well, almost every day I’m totally dissatisfied with everything on earth. It’s just that old man, blah, blah, blah, blah, blah. What are they talking about? My grandchildren are talking to me. I don’t understand a word they say. What are they … What? And who are they talking about? I never heard of this. It’s like that. And who’s running for office? Oh, my God. Oh, my God. It’s everything like that.
Well, almost every day I’m totally dissatisfied with everything on earth. It’s just that old man, blah, blah, blah, blah, blah. What are they talking about? My grandchildren are talking to me. I don’t understand a word they say. What are they … What? And who are they talking about? I never heard of this. It’s like that. And who’s running for office? Oh, my God. Oh, my God. It’s everything like that.
But then almost every day I meet somebody, just one person who gives you some hope. You just see somebody doing something nice or they do something nice for you. And I do find in Asia, that happens a lot, that people just do nice things for old people every day. And so, then my dissatisfaction with all the big things in the world and the way my grandchildren talk and the way young people are, and then I see something like that. And often, it’s something with the young people, something that the young people do.
And in Asia, they’re always bringing me things. They bring me dried curds. They bring me strawberries that they picked in the forest in the summer, or they bring the pine nuts that they found, or they bring me the milk in various forms or yogurt. Oh, yeah. Everybody thinks “You got to eat the yogurt. This is from my grandmother and all the other yogurt in the world is not good but my grandmother. She knows how to make the best yogurt ever and all.” And so, over and over and over, I’d find despite my all intentions to be in a bad mood, somebody spoils you with these little nice acts that are really very touching, very touching.
Lex Fridman
Yeah. And it reminds you that there’s that little flame of goodness that burns in everybody. I believe that that on the whole will keep humanity flourishing and keep evolving and changing towards something better with every generation.
Yeah. And it reminds you that there’s that little flame of goodness that burns in everybody. I believe that that on the whole will keep humanity flourishing and keep evolving and changing towards something better with every generation.
Jack Weatherford
Yes. The people in Mongolia take such good care of me all the time, all the time. And I think my wife had MS. I’ve talked about this before. Sometimes she had MS and slowly declined for many years, becoming paralyzed, not able to speak, not able to control her movements or anything. And we lived half the year still in Mongolia. Part of it was because the climate and the altitude were better for her situation. It was very helpful for her. But also, the people. There was a poor country. The sidewalks are broken, everything’s not working. But I would go out with her in a wheelchair alone, and I knew that every bump, some arm would pick her up and pick up the wheelchair and lift her over that and not make me do it.
Yes. The people in Mongolia take such good care of me all the time, all the time. And I think my wife had MS. I’ve talked about this before. Sometimes she had MS and slowly declined for many years, becoming paralyzed, not able to speak, not able to control her movements or anything. And we lived half the year still in Mongolia. Part of it was because the climate and the altitude were better for her situation. It was very helpful for her. But also, the people. There was a poor country. The sidewalks are broken, everything’s not working. But I would go out with her in a wheelchair alone, and I knew that every bump, some arm would pick her up and pick up the wheelchair and lift her over that and not make me do it.
We could go to the opera and you had to go up this magnificent set of Soviet stairs to get to the opera. We would go and I had no worries. I knew two guys would come from one side, two guys from the other side. They would carry up and they do not say, “Excuse me. May I help you.” They do not wait for you to say thank you, nothing. They just do it and they walk away. They have such respect. Singers would come there all the time to sing, to warm up the house for my wife. And even dancers would come sometimes to dance or play the horse head fiddle, morin khuur, to play that, to warm up the house for her, to see how they treated a totally disabled person.
And if I was feeding my wife and anyone, anybody saw it, they would come and immediately take over and start feeding her in their place. Children would come up to her. In America, they’re often afraid that she’s somebody in a wheelchair. They just look, they don’t know what to do. But over there, the children would always come to her, always. They were very kind. You just learn something about the people. And living there in a country where out in the countryside, you come to a gare, you never ask for permission to go in. You certainly don’t knock on the door frame. That’s no. That’s hugely offensive.
And you ask, it’s like insulting the people like, “What? You’re not a hospital people. I have to ask you for something.” No. You walk in and you sit down and they fix food for you. It’s an incredible thing. And these are the things that give me hope. It’s no institution in the world, not the big things, and not the pop culture and not all the platitudes. Oh, my God. Save us from the platitudes of modern life.
Lex Fridman
Yeah. True.
Yeah. True.
Jack Weatherford
It’s the family that will fix tea for you in 2:00 in the morning because there was a flash flood and you got stuck and now you’re cold and wet and they build a fire and take care of you. Or you just show up and you make camp somewhere if you have your own tent. And I swear, within one hour some child is going to be there with water and milk. You think, “Where did you come from?” But the mother sends them over, “Oh, there’s somebody over there in the forest.” They believe that they’re obligated to take care of one another. Anybody in your area, you take care of them and things like that. Individuals do give me hope. People one-by-one or a few at a time, even though I’m lost in the modern world.
It’s the family that will fix tea for you in 2:00 in the morning because there was a flash flood and you got stuck and now you’re cold and wet and they build a fire and take care of you. Or you just show up and you make camp somewhere if you have your own tent. And I swear, within one hour some child is going to be there with water and milk. You think, “Where did you come from?” But the mother sends them over, “Oh, there’s somebody over there in the forest.” They believe that they’re obligated to take care of one another. Anybody in your area, you take care of them and things like that. Individuals do give me hope. People one-by-one or a few at a time, even though I’m lost in the modern world.
Lex Fridman
Well, I’m glad you find your way. You mentioned that your wife is no longer with us. What’s a favorite memory you have with her?
Well, I’m glad you find your way. You mentioned that your wife is no longer with us. What’s a favorite memory you have with her?
Jack Weatherford
Well, I could tell you a favorite picture is a lake we used to go to called Ogii nuur in the middle, and somebody, a very nice friend, took a picture of us towards the end, we’re just sitting there watching the sunset over the lake that we’ve been to many, many times in life. And we’re holding hands. She’s in the chair paralyzed, and we’re just sitting there staring off in the distance. And that’s one of my favorites. But with my wife, I was just blessed with a good wife that was exciting. She was the most beautiful woman I had ever met my whole life. She was smart. She would talk to people about anything. She talked about jazz or physics or art.
Well, I could tell you a favorite picture is a lake we used to go to called Ogii nuur in the middle, and somebody, a very nice friend, took a picture of us towards the end, we’re just sitting there watching the sunset over the lake that we’ve been to many, many times in life. And we’re holding hands. She’s in the chair paralyzed, and we’re just sitting there staring off in the distance. And that’s one of my favorites. But with my wife, I was just blessed with a good wife that was exciting. She was the most beautiful woman I had ever met my whole life. She was smart. She would talk to people about anything. She talked about jazz or physics or art.
I mean, my life is so small and narrow. But my wife, she’s the one who gave me a life. The truth is a very odd, people don’t believe sometimes, I failed English in college. I barely got in college. Nobody in my family. I’d grown up with my grandparents, mostly the countryside, and they had third grade education. My father had seventh grade. I went to live with him after the grandparents died and my mother. There was no big education there in the family. But I somehow got to college. My father told me to go. He didn’t want me to go to the war in Vietnam, so he volunteered to go because there was the rule that they couldn’t send two people from one family against their will. That was mainly designed to protect brothers, but he could go as the father and then I could go to college.
So, I got to college and I can’t say, “Oh, I was drinking and having a party and not serious.” No. I was trying like hell to pass that course. I failed English. I failed it. And this was just a huge shame to me. In fact, after one year I was put on probation to be kicked out of the school. My grades were so low, overall. And then, so it took me a long time to confess this to my wife after we met. I met her. I’d briefly had known her in high school, but just not well or anything. But anyway, we met later and I told her, and she just looked at me. She said, “What does a professor know? It’s just a professor. You can write anything you want.”
And she had the power to make me believe everything. She said, I don’t care what she said, I would believe it. I would say, “Yeah. That’s right. That’s just a professor. Yeah.” And she inspired me. But she supported me all the way through graduate school. She was taking some courses of her own and she was doing graduate work. But she inspired me. But she told me … I said, “I want to write for more people than just for other scholars. I’ve done this dissertation, a PhD, and it’s just dry as the Gobi Desert, and I didn’t know what to do.”
And she said, “Just tell the story to me, but I can’t see you while you tell it. You’re on the radio and I’m listening in my car driving somewhere. Just tell the story to me.” And to this day, almost every word I write as always just tell the story to her the way that she would like it. And I always read the books to her even she couldn’t comprehend too much, but she just loved hearing the book, because it was mine.
And in the last years of her life, I gave up the teaching and we went back to our original home in South Carolina and I said, “Okay. We’re just going to live here and watch the ocean and do things like that and just be worthless teenagers.” And my wife used to have episodes of clarity. I have no idea what would cost. It might be two hours. It might be seven or eight hours. And we would talk a lot. And so, one time she said to me, she said, “This disease is going to take my life, but it’s taking your life.” She said, “You gave up teaching and you gave up writing.” And she said, “How do you expect me to die in peace if I know that you gave up everything to this disease?”
She said, “You should write.” And so, every single day we sat together by the water, I mean by the window. I moved it into the dining room overlooking the water. We sat there at the desk and she sat in her wheelchair next to me. And sometimes we would play a little soft music in the background a little bit. And for the most part, she couldn’t talk. But she liked to just sit there beside me working. And she knew that she was inspiration. She knew. She was the battery that kept me going. How on earth I ever had a wife like that? I don’t know.
Lex Fridman
That’s beautiful, Jack. That’s really beautiful.
That’s beautiful, Jack. That’s really beautiful.
Jack Weatherford
I just hit the jackpot with her. And I see so many people that get by and they even like each other or they’re friends or something. But in my life, there was one person. I love my children. I still do. I love my grandchildren even I don’t understand them.
I just hit the jackpot with her. And I see so many people that get by and they even like each other or they’re friends or something. But in my life, there was one person. I love my children. I still do. I love my grandchildren even I don’t understand them.
Lex Fridman
Yeah.
Yeah.
Jack Weatherford
But there’s one person in my life, and that was my wife for 44 years, and her funeral was on our anniversary. That’s just the way life works out. But I was very lucky, very lucky.
But there’s one person in my life, and that was my wife for 44 years, and her funeral was on our anniversary. That’s just the way life works out. But I was very lucky, very lucky.
Lex Fridman
If the two of you lived and met a few centuries ago, I might be reading a history book about you conquering.
If the two of you lived and met a few centuries ago, I might be reading a history book about you conquering.
Jack Weatherford
No, no, no.
No, no, no.
Lex Fridman
And if she said, “You should do this,” maybe you would …
And if she said, “You should do this,” maybe you would …
Jack Weatherford
If she said it, I probably would’ve believed it.
If she said it, I probably would’ve believed it.
Lex Fridman
Exactly. Exactly.
Exactly. Exactly.
Jack Weatherford
She was too busy enjoying the world. And in her final, I could not ask her questions and I would not say, “Oh, you remember that” … No, I never would say that, because I knew she could remember. But when she was being restless or something in the night or I used to recite scenes from our life and just give the scene without saying, “Do you remember?” But the last night, I certainly didn’t know that she was going, but it was a rough night.
She was too busy enjoying the world. And in her final, I could not ask her questions and I would not say, “Oh, you remember that” … No, I never would say that, because I knew she could remember. But when she was being restless or something in the night or I used to recite scenes from our life and just give the scene without saying, “Do you remember?” But the last night, I certainly didn’t know that she was going, but it was a rough night.
And we went back to the first night that we had in Moscow. We came in December in the winter, and the snow was so beautiful and white and the yellow lights shining on it. And then the most beautiful night we went to the Bolshoi and she had this elegant blue wool coat from her grandmother from the 1920s with a huge, so ironic, it was a blue wolf, but it’s gray blue, like the Mongol has a gray blue collar, this huge collar. She just looked like a movie star from the ’20s or something.
And we went to see Maya Plisetskaya, and it was one of the most beautiful nights. But her last night, I told her that story again, of all the details, I’d gone through it many times with her coat from her grandmother whom she loved very much, and the snow and the yellow lights, and we arrived at night because of course the flight was late. And then the next night going to the Bolshoi and all those beautiful things from Russia, that was it. She was an inspiration. I have many, many nights or many days of great memories.
Lex Fridman
You’re going to make me cry, Jack.
You’re going to make me cry, Jack.
Jack Weatherford
Oh, no.
Oh, no.
Lex Fridman
That was beautiful. You’re a beautiful human being. It’s really an honor to talk to you. This was such a fascinating journey through human history about one of the most impactful humans in human history.
That was beautiful. You’re a beautiful human being. It’s really an honor to talk to you. This was such a fascinating journey through human history about one of the most impactful humans in human history.
Jack Weatherford
Well, I thank you very much. And the amount of research, when I realized how much research you had done, I felt like you’re going to know things I don’t know, and you’re going to trick me and pull something out, and I’m going to be shamed in front of the whole world.
Well, I thank you very much. And the amount of research, when I realized how much research you had done, I felt like you’re going to know things I don’t know, and you’re going to trick me and pull something out, and I’m going to be shamed in front of the whole world.
Lex Fridman
There’s only one piece of research left is me going to Mongolia and riding there on the steppe, that would be incredible.
There’s only one piece of research left is me going to Mongolia and riding there on the steppe, that would be incredible.
Jack Weatherford
Come. Come.
Come. Come.
Lex Fridman
I will. Thank you so much for talking today, Jack.
I will. Thank you so much for talking today, Jack.
Jack Weatherford
Thank you.
Thank you.
Lex Fridman
Thanks for listening to this conversation with Jack Weatherford. To support this podcast, please check out our sponsors in the description and consider subscribing to this channel. And now, let me answer some questions and try to articulate some things I’ve been thinking about. If you’d like to submit questions including in audio and video form, go to lexfridman.com/ama. Or if you want to contact me for other reasons, go to lexfridman.com/contact.
Thanks for listening to this conversation with Jack Weatherford. To support this podcast, please check out our sponsors in the description and consider subscribing to this channel. And now, let me answer some questions and try to articulate some things I’ve been thinking about. If you’d like to submit questions including in audio and video form, go to lexfridman.com/ama. Or if you want to contact me for other reasons, go to lexfridman.com/contact.
Lex: Dan Carlin
And now, allow me to make a few comments on the ever-evolving moral landscape of human civilization throughout our 10,000-year history. I was listening to Dan Carlin’s excellent eye-opening five-and-a-half-hour episode of Hardcore History titled Human Resources. It covered the topic of slavery, the Atlantic slave trade to be exact. One of the lessons I took from this episode is that the long arc of history is full of atrocities, as we modern-day humans understand them with the wisdom of time and moral progress.
But during each period of history, as Dan documents, it was difficult for the majority of people to see just where the line between good and evil is. We humans, after all, forever like to weave a story in which we are the good guys. Listening to Dan discuss, and later myself, reading first-hand accounts of slaves, of torture, of rape, of separation of families is incomprehensibly heartbreaking.
By the way in this topic, first-hand accounts of slavery could be read in Slave Narratives: A Folk History of Slavery in the United States from interviews with former slaves. I can recommend the book that I’ve been reading, which is Voices from Slavery: 100 Authentic Slave Narratives. It all seems deeply and obviously wrong by today’s standards. But slavery was seen as normal through most of human history. Thomas Jefferson, the man who wrote, “All men are created equal,” which I think is one of the most powerful lines in all of human history. He himself was a slave owner, making him a fascinating case study of contradictions.
In fact, there’s evidence that Thomas Jefferson drew from Genghis Khan’s ideas about the importance of religious freedom, pulling as he did foundational ideas of human freedom from the jaws of deep history. And Dan, in his episode, documents these contradictions and complexities quite well. The full range of human psychology involved, including how violations of basic human rights breed generational hatred. This I think is an important lesson to understand.
The consequences of our moral failings can reverberate through decades, even centuries, and that is perhaps one of the values of studying history. It is laden with atrocities, but it also contains people who, while flawed, dare to rise in some way above the moral decrepitude of the day to try to build a foundation of a slightly better future world. As MLK Jr. put it, “The arc of moral universe is long, but it bends towards justice.”
Lex: Gaza
And now, please allow me to say a few words about Gaza, Israel and Palestine. I’m not sure I’m eloquent enough or know quite the right words to express what I’m feeling. But let me try. I think what is happening in Gaza is an atrocity, and I think that the Israeli government is directly responsible for it. And to the degree the US government is assisting the Israeli government in this, which I believe it currently is. It needs to stop immediately. For me as an American makes me sick to know that my government has any role in this atrocity. This needs to stop.
Yes. There’s geopolitical and military complexity, nuance, and historical context that I’m told by some so-called experts that one must understand. And perhaps they are smarter than me. But like mentioned before, unlike the more complexity of deep history that I’ve often spoken about from the Roman Empire to the Atlantic slave trade, this is the 21st century. This is today. In this, the 21st century, I see things quite simply and clearly.
To me, the death of a child is a tragedy. It doesn’t matter what their skin color is, what their religion is, or what plot of land they call home. In my view, they are all equal, and the death of each child is a tragedy. Hamas did a definitively evil act on October 7th, brutally murdering over 1,000 civilians. But now, the acts of war conducted by the Israeli government have led to the death of over 60,000 people in Gaza, likely over 80,000 people, of which at least 17,000 are children, 17,000. I’m not smart enough to know the path to peace and flourishing of all the peoples in the region. But I do know that what has been happening in Gaza cannot be the way.
Suffering at this kind of scale breeds generational hate that leads to more evil in the world, not less, to more destruction, to more suffering. This has to stop. Two years ago, I spoke with many Palestinians in the West Bank on camera and off. There’s a video of it up if you want to hear their voices for yourselves. It was a deeply moving experience for me, and I’m grateful for it. In the future, I hope to find a way to talk to people in Gaza. I still think it’s valuable to talk to leaders, historians, soldiers, activists from all perspectives.
But the most powerful and moving conversations for me on mic and off have always been with everyday people. This always felt like where the truth is, the deeper truth of life, of pain, fear, of hope, and I still have hope. I believe we humans are good at the core, and I know we’ll find our way. Thank you for listening. I love you all.
Transcript for Demis Hassabis: Future of AI, Simulating Reality, Physics and Video Games | Lex Fridman Podcast #475
This is a transcript of Lex Fridman Podcast #475 with Demis Hassabis.
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But again, if you look at something like Veo, our video generation model, it can model liquids quite well, surprisingly well. And materials, specular lighting, I love the ones where there’s people who generate videos where there’s clear liquids going through hydraulic presses and then it’s being squeezed out. I used to write physics engines and graphics engines in my early days in gaming, and I know it’s just so painstakingly hard to build programs that can do that. And yet somehow these systems are reverse engineering from just watching YouTube videos. So presumably what’s happening is it’s extracting some underlying structure around how these materials behave. So perhaps there is some kind of lower dimensional manifold that can be learned if we actually fully understood what’s going on under the hood. That’s maybe true of most of reality.
This is the Lex Fridman Podcast. To support it, please check out our sponsors in the description and consider subscribing to this channel. And now, dear friends, here’s Demis Hassabis.
So you have to do something much smarter. And what we did in both cases was build models of those environments and that guided the search in a smart way and that makes it tractable. So if you think about protein folding, which is obviously a natural system, why should that be possible? How does physics do that? Proteins fold in milliseconds in our bodies, so somehow physics solves this problem that we’ve now also solved computationally. And I think the reason that’s possible is that in nature, natural systems have structure because they were subject to evolutionary processes that shape them. And if that’s true, then you can maybe learn what that structure is.
If that’s true, then there should be some sort of pattern that you can kind of reverse learn and a kind of manifold really that helps you search to the right solution, to the right shape and actually allow you to predict things about it in an efficient way because it’s not a random pattern. So it may not be possible for man-made things or abstract things like factorizing large numbers because unless there’s patterns in the number space, which there might be, but if there’s not and it’s uniform, then there’s no pattern to learn, there’s no model to learn that will help you search. So you have to do brute force. So in that case you maybe need a quantum computer, something like this. But in most things in nature that we’re interested in are not like that. They have structure that evolved for a reason and survived over time. And if that’s true, I think that’s potentially learnable by a neural network.
I think we’ve proven, and the AI community in general that classical systems, Turing machines can go a lot further than we previously thought. They can do things like model the structures of proteins and play go to better than world champion level. And a lot of people would’ve thought maybe 10, 20 years ago that was decades away, or maybe you would need some sort of quantum machines to quantum systems to be able to do things like protein folding. And so I think we haven’t really even sort of scratched the surface yet of what classical systems so-called could do.
And of course, AGI being built on a neural network system on top of a neural network system on top of a classical computer would be the ultimate expression of that. And I think the limit, what the bounds of that kind of system, what it can do, it’s a very interesting question and directly speaks to the P equals NP question.
And then you think, “Well, it’s like 10 to 300 possible protein structures, 10 to the 170 possible go positions. All of these are way more than atoms in the universe, so how could one possibly find the right solution or predict the next step?” But it turns out that it is possible. And of course reality in nature does do it. Proteins do fold. So that gives you confidence that there must be, if we understood how physics was doing that in a sense and we could mimic that process, i.e. model that process, it should be possible on our classical systems is basically what the conjecture is about.
And imagine that in two or three more years’ time, that’s the thing I’m thinking about and how incredible that will look given where we’ve come from the early versions of that one or two years ago. And so the rate of progress is incredible. And I think I’m like you is like a lot of people love all of the stand-up comedians and that actually captures a lot of human dynamics very well and body language, but actually the thing I’m most impressed with and fascinated by is the physics behavior, the lighting and materials and liquids. And it’s pretty amazing that it can do that. And I think that shows that it has some notion of at least intuitive physics, how things are supposed to work intuitively, maybe the way that a human child would understand physics, right, as opposed to a PhD student really being able to unpack all the equations. It’s more of an intuitive physics understanding.
But it seems like you can understand it through passive observation, which is pretty surprising to me. And again, I think hints at something underlying about the nature of reality in my opinion, beyond just the cool videos that it generates. And of course there’s next stages is maybe even making those videos interactive so one can actually step into them and move around them, which would be really mind-blowing, especially given my games background. So you can imagine. And then I think we’re starting to get towards what I would call a world model, a model of how the world works, the mechanics of the world, the physics of the world, and the things in that world. And of course that’s what you would need for a true AGI system.
And I think the next stage is I always used to love making, all the games I’ve made are open world games, so they’re games where there’s a simulation and then there’s AI characters, and then the player interacts with that simulation and the simulation adapts to the way the player plays. And I always thought they were the coolest games because, so games like Theme Park that I worked on where everybody’s game experience would be unique to them because you’re kind of co-creating the game. We set up the parameters, we set up initial conditions, and then you as the player immersed in it, and then you are co-creating it with the simulation. But of course it’s very hard to program open world games. You’ve got to be able to create content whichever direction the player goes in, and you want it to be compelling no matter what the player chooses. And so it was always quite difficult to build things like cellular automata actually, type of those kind of classical systems, which created some emergent behavior, but they’re always a little bit fragile, a little bit limited. Now we are maybe on the cusp in the next few years, five, 10 years of having AI systems that can truly create around your imagination, can dynamically change the story and storytell the narrative around and make it dramatic no matter what you end up choosing. So it’s like the ultimate choose your own adventure sort of game. And I think maybe we are within reach, if you think of a kind of interactive version of Veo and then wind that forward five to 10 years and imagine how good it’s going to be.
But I do, one of my favorite games of Elder Scrolls is Daggerfall I believe, that they really played with a random generation of the dungeons of if you can step in and they give you this feeling of an open world. And there you mentioned interactivity. You don’t need to interact. That’s the first step because you don’t need to interact that much. You just, when you open the door, whatever you see is randomly generated for you. And that’s already an incredible experience because you might be the only person to ever see that.
I think maybe Black & White was the game that I worked on early stages of that, that had still probably the best AI, learning AI, in it. It was an early reinforcement learning system that you were looking after this mythical creature and growing it and nurturing it. And depending how you treated it, it would treat the villagers in that world the same way. So if you were mean to it, it would be mean. If you were good, it would be protective. And so it was really a reflection of the way you played it. So actually all of the, I’ve been working on simulations and AI through the medium of games at the beginning of my career, and really the whole of what I do today, it’s still a follow on from those early more hard coded ways of doing the AI to now fully general learning systems that are trying to achieve the same thing.
And of course now with multiplayer games as well, it can be a very social activity and can explore all kinds of interesting worlds in that. But on the other hand, it’s very important to also enjoy and experience the physical world. But the question is then I think we’re going to have to confront the question again of what is the fundamental nature of reality? What is going to be the difference between these increasingly realistic simulations and multiplayer ones and emergent and what we do in the real world?
How can these systems create something new? In fact discover something new? Obviously this is super relevant for scientific discovery or pushing met science and medicine forward, which we want to do with these systems. And you can actually bolt on some fairly simple search systems on top of these models and get you into a new region of space. Of course, you also have to make sure that you’re not searching that space totally randomly. It would be too big. So you have to have some objective function that you’re trying to optimize and hill climb towards and that guides that search.
Obviously naturally evolution clearly did. It did evolve new capabilities. So bacteria to where we are now. So clearly that it must be possible with evolutionary systems to generate new patterns, going back to the first thing we talked about and new capabilities and emerging properties, and maybe we’re on the cusp of discovering how to do that.
And I used to talk with Paul Nurse, who is a bit of a mentor of mine in biology. He runs the founded the Crick Institute and won the Nobel Prize in 2001. We’ve been talking about it since the nineties, and I used to come back to it every five years. It’s like, what would you need to model the full internals of a cell so that you could do experiments on the virtual cell and what those experiment in silico and those predictions would be useful for you to save you a lot of time in the wet lab. That would be the dream.
Maybe you could a hundred x speed up experiments by doing most of it in silico the search in silico, and then you do the validation step in the wet lab. That’s the dream. But maybe now, finally, so I was trying to build these components, AlphaFold being one, that would allow you eventually to model the full interaction, a full simulation of a cell, and I’d probably start with a yeast cell. And partly that’s what Paul Nurse studied because the yeast cell is like a full organism, that’s a single cell. So it’s the kind of simplest single cell organism. And so it’s not just a cell, it’s a full organism.
And yeast is very well understood. And so that would be a good candidate for a kind of full simulated model. Now AlphaFold is the solution to the kind of static picture of what does a 3D structure protein look like? A static picture of it. But we know that biology, all the interesting things happen with the dynamics, the interactions, and that’s what AlphaFold 3 is, the first step towards is modeling those interactions. So first of all, pair wise proteins with proteins, proteins with RNA and DNA. But then the next step after that would be modeling maybe a whole pathway, maybe like the tour pathway that’s involved in cancer or something like this. And then eventually you might be able to model a whole cell.
A lot of the interesting aspects of that can be modeled by these neural network systems, including very recently we had cyclone prediction of where paths of hurricanes might go. Of course, super useful, super important for the world and it’s super important to do that very timely and very quickly and as well as accurately. And I think it’s very promising direction again, of simulating so that you can run forward predictions and simulations of very complicated real world systems.
And for us to know we have a true AGI, we would have to make sure that it has all those capabilities. It isn’t kind of a jagged intelligence where some things, it’s really good at, like today’s systems, but other things it’s really flawed at. And that’s what we currently have with today’s systems. They’re not consistent. So you’d want that consistency of intelligence across the board.
And then we have some missing, I think, capabilities like the true invention capabilities and creativity that we were talking about earlier. So you’d want to see those. How you test that? I think you just test it. One way to do it would be kind of brute force test of tens of thousands of cognitive tasks that we know that humans can do. And maybe also make the system available to a few hundred of the world’s top experts, the Terence Taos of each subject area and give them a month or two and see if they can find an obvious flaw in the system. And if they can’t, then I think you can be pretty confident we have a fully general system.
So maybe you could even run the back test of that very rigorously, have a cut-off of 1900 and then give the system everything that was written up to 1900 and then see if it could come up with special relativity and general relativity, right? Like Einstein did. That would be an interesting test. Another one would be can it invent a game like Go? Go not just come up with Move 37, a new strategy, but can it invent a game that’s as deep as aesthetically beautiful, as elegant as Go? And those are the sorts of things I would be looking out for. And probably a system being able to do several of those things for it to be very general, not just one domain. And so I think that would be the signs at least that I would be looking for, that we’ve got a system that’s AGI level and then maybe to fill that out, you would also check their consistency, make sure there’s no holes in that system either.
One could imagine eventually doing that end to end. I don’t see why that wouldn’t be possible, but right now I think the systems are not good enough to do that in terms of coming up with the architecture of the code. And again, it’s a little bit reconnected to this idea of coming up with a new conjectural hypothesis, how they’re good if you give them very specific instructions about what you’re trying to do, but if you give them a very vague high level instruction, that wouldn’t work currently. And I think that’s related to this idea of invent a game as good as Go, right?
Imagine that was the prompt. That’s pretty. And so the current systems wouldn’t know I think what to do with that, how to narrow that down to something tractable. And I think there’s similar, look, just make a better version of yourself. That’s too unconstrained. But we’ve done it. And as you know with AlphaVol, like things like faster matrix multiplication, so when you hone it down to very specific thing you want, it’s very good at incrementally improving that.
But at the moment these are more incremental improvements, sort of small iterations. Whereas if you wanted a big leap in understanding, you’d need a much larger advance.
So there be, the path to AGI won’t be like a gradual improvement over time.
And that research base means that if some new breakthrough is required, like an AlphaGo or Transformers, I would back us to be the place that does that. So I’m actually quite like it when the terrain gets harder, right? Because then it veers more from just engineering to true research, and research plus engineering, and that’s our sweet spot and I think that’s harder. It’s harder to invent things than to fast follow.
And so we don’t know, I would say it’s kind of 50/50 whether new things are needed or whether the scaling the existing stuff is going to be enough. And so, in true kind of empirical fashion, we are pushing both of those as hard as possible. The new blue sky, ideas and maybe about half our resources are on that. And then scaling to the max, the current capabilities. And we’re still seeing some fantastic progress on each different version of Gemini.
And then on top of that there’s the thinking systems, the new paradigm of the last year that where they get smarter, the longer amount of inference time you give them at test time. So all of those things need a lot of compute and I don’t really see that slowing down, and as AI systems become better, they’ll become more useful and there’ll be more demand for them. So both from the training side, the training side actually is only just one part of that. It may even become the smaller part of what’s needed in the overall compute that’s required.
We’re also very interested in building AI systems and we have done the help with energy usage, so help data center energy like for the cooling systems be efficient, grid optimization, and then eventually things like helping with plasma-containment fusion reactors. We’ve done lots of work on that with Commonwealth Fusion, and also one could imagine reactor design.
And then material design I think is one of the most exciting. New types of solar material, solar panel material room temperature superconductors has always been on my list of dream breakthroughs, and optimal batteries. And I think a solution to any one of those things would be absolutely revolutionary for climate and energy usage. And we’re probably close, and again in the next five years to having AI systems that can materially help with those problems.
And fusion I think is definitely doable, it seems, if we have the right design of reactor and we can control the plasma and fast enough and so on, and I think both of those things will actually get solved. So we’ll probably have at least those are probably the two primary sources of renewable, clean, almost free or perhaps free energy.
So for example, the water access problem goes away because you can just use desalination. We have the technology, it’s just too expensive. So only fairly wealthy countries like Singapore and Israel and so on actually use it. But if it was cheap, then all countries that have a coast could, but also you’d have unlimited rocket fuel. You could just separate seawater out into hydrogen and oxygen using energy and that’s rocket fuel.
So combined with Elon’s, amazing self landing rockets, then it could be you sort of like a bus service to space. So that opens up incredible new resources and domains. Asteroid mining I think will become a thing, and maximum human flourishing to the stars. That’s what I dream about as well is like Carl Sagan’s sort of idea of bringing consciousness to the universe, waking up the universe. And I think human civilization will do that in the full sense of time if we get AI right, and crack some of these problems with it.
And we should be sometimes call it another call about this kind of radical abundance era, where there’s plenty of resources to go around. Of course the next big question is making sure that that’s fairly, shared fairly and everyone in society benefits from that.
And I think going back to games again is I think they’re originally why they’re so great as well for kids to play things like chess is they’re great little microcosm simulations of the world. They’re simulations of the world too. They’re simplified versions of some real world situation, whether it’s poker or Go or chess, different aspects or diplomacy, different of the real world.
And it allows you to practice at them too, because how many times do you get to practice a massive decision moment in your life? What job to take, what university to go to? You get maybe, I don’t know, a dozen or so key decisions one has to make and you’ve got to make those as best as you can. And games is a kind of safe environment, repeatable environment where you can get better at your decision-making process, and it maybe has this additional benefit of channeling some energies into more creative and constructive pursuits.
If you do it in a healthy way, you learn to use victory and losses in a way. Don’t get carried away with victory and think you’re just the best in the world. And the losses keep you humble, and always knowing there’s always something more to learn. There’s always a bigger expert that you can mentor you. I think you learn that I’m pretty sure in martial arts.
And I think that’s also the way that at least I was trained in chess. And so, in the same way, and it can be very hardcore and very important and of course you want to win, but you also need to learn how to deal with setbacks in a healthy way, and wire that feeling that you have when you lose something into a constructive thing of, next time I’m going to improve this or get better at this.
So one of the incredible stories on the business, on the leadership side is what Google has done over the past year. So I think it’s fair to say that Google was losing on the LLM product side a year ago with Gemini 1.5 And now it’s winning, which… I’m Joe Biden. And you took the helm and you led this effort. What did it take to go from let’s say quote-unquote losing to quote-unquote winning, in the span of a year?
And it was been hard, but we’re all very competitive and we love research. This is so fun to do, and it’s great to see our trajectory. It wasn’t a given, but we’re very pleased with where we are and the rate of progress is the most important thing. So if you look at where we’ve come to from two years ago to one year ago to now, I think we call it relentless progress. Along with relentless shipping of that progress is being very successful and it’s unbelievably competitive, the whole space, the whole AI space, with some of the greatest entrepreneurs and leaders and companies in the world, all competing now because everyone’s realized how important AI is. And it’s very been pleasing for us to see that progress.
And that’s what we still act like today with Google DeepMind. And acting with decisiveness and the energy that you get from the best smaller organizations. And we try to get the best of both worlds where we have this incredible, billions of users surfaces and credible products that we can power up with our AI and our research and that’s amazing and that’s very few places in the world you can get that, do incredible world-class research on the one hand and then plug it in and improve billions of people’s lives the next day. That’s a pretty amazing combination.
And we’re continually fighting and cutting away bureaucracy to allow the research culture and the relentless shipping culture to flourish. And I think we’ve got a pretty good balance, whilst being responsible with it, as you have to be as a large company and also with a number of huge product surfaces that we have.
And so I love actually the combination of cutting edge research and then being applied in a product and to power a new experience. And so, I think it’s the same skill really of imagining what it would be like to use it viscerally, and having good taste coming back to earlier. The same thing that’s useful in science, I think can also be useful in product design.
And I’ve just had a very, always been a sort of multidisciplinary person, so I don’t see the boundaries really between arts and sciences, or product and research. It’s a continuum for me. I like working on products that are cutting edge. I wouldn’t be able to have cutting edge technology under the hood. I wouldn’t be excited about them if they were just run-of-the-mill products. It requires this invention, creativity, cap capability.
You look at 2.5 versus 1.5 and it’s just a gigantic improvement, and we expect that again for the future versions. And so the models are becoming more capable.
So you’ve got, the interesting thing about the design space in today’s world, these AI first products is you’ve got to design not for what the thing can do today, the technology can do today, but in a year’s time. So you actually have to be a very technical product person, because you’ve got to have a good intuition for and feel for, okay, that thing that I’m dreaming about now can’t be done today, but is the research track on schedule to basically intercept that in six months or a year’s time.
So you’ve kind of got to intercept where this highly changing technology’s going, as well as the new capabilities are coming online all the time that we didn’t realize before that can allow these research to work. Or now we’ve got video generation, what do we do with that, this multimodal stuff.
Is it, one question I have is it really going to be the current UI that we have today, these text box chats? Seems very unlikely once you think about these super multimodal systems. Shouldn’t it be something more like Minority Report where you are sort of vibing with it in a kind of collaborative way? It seems very restricted today. I think we’ll look back on today’s interfaces and products and systems as quite archaic in maybe in just a couple of years.
So I think there’s a lot of space actually for innovation to happen on the product side as well as the research side.
Again, it sort of speaks to Go again as a game, the most elegant, beautiful game. Can you make an interface as beautiful as that? Actually, I think we’re going to enter an era of AI-generated interfaces that are probably personalized to you, so it fits the way that you, your aesthetic, your feel, the way that your brain works and the AI kind of generates that depending on the task. That feels like that’s probably the direction we’ll end up in.
All right, let me try to trick you into answering a question. When will Gemini 3 come up? Is it before or after DTS-6? The world waits for both.
And what does it take to go from 2.5 To 3.0? Because it seems like there’s been a lot of releases of 2.5, which are already leaps in performance. So what does it even mean to go to a new version? Is it about performance? Is it about a completely different flavor of an experience?
And during that time, lots of new interesting research iterations and ideas come up, and we sort of collect them all together that you could imagine the last six months worth of interesting ideas on the architecture front, maybe it’s on the data front, it’s like many different possible things. And we package that all up, test which ones are likely to be useful for the next iteration, and then bundle that all together. And then we start the new giant hero training run. And then of course that gets monitored.
And we like to think of this Pareto frontier of on the one hand, the Y-axis is like performance, and then the X- axis is cost or latency and speed basically. And we have models that completely define the frontier. So whatever your trade-off is that you want as an individual user or as a developer, you should find one of our models satisfies that constraint.
It’s a multi objective optimization problem. You don’t want to be good at just one thing. We’re trying to build general systems that are good across the board, and you try and make no-regret improvements. So where you improve in coding, but it doesn’t reduce your performance in other areas. So that’s the hard part because of course you could put more coding data in or you could put more, I don’t know, gaming data in, but then does it make worse your language system or your translation systems and other things that you care about? So you’ve got to continually monitor this increasingly larger and larger suite of benchmarks. And also when you stick them into products, these models, you also care about the direct usage and the direct stats and the signals that you’re getting from the end users, whether they’re coders or the average person using the chat interfaces.
I remember when we were starting out back in 2010, I didn’t even pay myself a couple of years because it wasn’t enough money. We couldn’t raise any money, and these days, interns are being paid the amount that we raised as our first entire seed round. So it’s pretty funny. And I remember the days where I used to have to work for free and almost pay my own way to do an internship. Right now, it’s all the other around, but that’s just how it is. It’s the new world. But I think that we’ve been discussing what happens post- AGI and energy systems are solved and so on, what is even money going to mean? So I think in the economy and we’re going to have much bigger issues to work through and how does the economy function in that world and companies? So I think it’s a little bit of a side issue about salaries and things like that today.
So I think for the next era, like the next five, 10 years, I think what we’re going to find is people who embrace these technologies become almost at one with them, whether that’s in the creative industries or the technical industries will become superhumanly productive, I think. So the great programmers will be even better, but there’ll be even 10X even what they are today. And because there, you’ll be able to use their skills to utilize the tools to the maximum, exploit them to the maximum. And so I think that’s what we’re going to see in the next domain. So that’s going to cause quite a lot of change. And so that’s coming. A lot of people benefit from that.
So I think one example of that is if coding becomes easier, it becomes available to many more creatives to do more. But I think the top programmers will still have huge advantages as terms of specifying, going back to specifying what the architecture should be. The question should be how to guide these coding assistants in a way that’s useful and check whether the code they produce is good. So I think there’s plenty of headroom there for the foreseeable next few years.
So I think going to make it more difficult for society to deal with and there’s a lot to think through and I think we need to be discussing that right now. And I encourage top economists in the world and philosophers to start thinking about how is society going to be affected by this and what should we do? Including things like universal basic provision or something like that where a lot of the increased productivity gets shared out and distributed to society and maybe in the form of services and other things where if you want more than that, you still go and get some incredibly rare skills and things like that and make yourself unique. But there’s a basic provision that is provided.
And what’s also fascinating is he’s a person who saw nuclear science and physics become the atomic bomb, so you got to see ideas become a thing that has a huge amount of impact on the world. He also foresaw the same thing for computing, and that’s a little bit again, beautiful and haunting aspect of the book. Then taking a leap forward and looking at this, at least it all AlphaZero, AlphaGo AlphaZero big moment that maybe John von Neumann’s thinking was brought to reality. So I guess the question is what do you think if you got to hang out with John von Neumann now, what would he say about what’s going on?
I’ve always seen it like that. And maybe in the Renaissance times, the great discoverers then, people like Da Vinci, I don’t think he saw any difference between science and art and perhaps religion. Everything was, it’s just part of being human and being inspired about the world around us. And that’s the philosophy I tried to take. And one of my favorite philosophers is Spinoza. And I think he combined that all very well, this idea of trying to understand the universe and understanding our place in it. And that was his way of understanding religion. And I think that’s quite beautiful. And for me, all of these things are related, interrelated, the technology and what it means to be human.
And I think it’s very important though that we remember that as when we’re immersed in the technology and the research, I think a lot of researchers that I see in our field are a little bit too narrow and only understand the technology. And I think also that’s why it’s important for this to be debated by society at large. I’m very supportive of things like the AI summits that will happen and governments understanding it. And I think that’s one good thing about the chatbot era and the product era of AI is that everyday person can actually feel and interact with cutting edge AI and feel it for themselves.
On the one hand, we could solve all diseases, energy problems, the scarcity problem, and then travel to the stars and conscious of the stars and maximum human flourishing. On the other hand, is these P-Doom scenarios. So given the uncertainty around it and the importance of it, it’s clear to me the only rational, sensible approach is to proceed with cautious optimism. So we want the benefits of course, and all of the amazing things that AI can bring. And actually, I would be really worried for humanity given the other challenges that we have, climate, aging, resources, all of that if I didn’t know something like AI was coming down the line. How would we solve all those other problems? I think it’s hard. So I think it could be amazingly transformative for good. But on the other hand, there are these risks that we know are there.
And I suspect there probably is, but it’s going to be hard to… I think this journey we’re on will help us understand that and define that. And there may be a difference between carbon based substrates that we are and silicon ones when they process information. One of the best definitions I like of consciousness is it’s the way information feels when we process it, right?
We may even come towards understanding that when if we do things like neural link or have neural interfaces to the AI systems, which I think we probably will eventually, maybe to keep up with the AI systems, we might actually be able to feel for ourselves what it’s like to compute on silicon, right? And maybe that will tell us. So I think it’s going to be interesting. I had a debate once with the late Daniel Dennett about why do we think each other are conscious? Okay, so it’s for two reasons. One is you’re exhibiting the same behavior that I am. So that’s one thing. Behaviorally you seem like a conscious being if I am.
But the second thing which is often overlooked is that we’re running on the same substrate. So if you’re behaving in the same way and we’re running on the same substrate, it’s most parsimonious to assume you’re feeling the same experience that I’m feeling. But with an AI that’s on silicon, we won’t be able to rely on the second part, even if it exhibits the first part, that behavior looks like a behavior of a conscious being. It might even claim it is, but we wouldn’t know how it actually felt and it probably couldn’t know what we felt, at least in the first stages. Maybe when we get to superintelligence and the technologies that builds, perhaps we’ll be able to bridge that.
How is it we can cope with the modern world, right? Flying on planes, doing podcasts, playing computer games and virtual simulations. I mean, it’s already mind blowing given that our mind was developed for hunting buffaloes on the tundra. And so I think this is just the next step, and it’s actually kind of interesting to see how society’s already adapted to this mind blowing AI technology we have today already. It’s sort of like, “Oh, I talked to chat bots. Totally fine.”
Well, first, I think this is probably one of the greatest and most unique commencement speeches ever given, but of course, I have many favorites, including the one by Steve Jobs. And David Foster Wallace is one of my favorite writers and one of my favorite humans. There’s a tragic honesty to his work, and it always felt as if he was engaging in a constant battle with his own mind, and the writing, his writing were kind of his notes from the front lines of that battle. Now onto the speech, let me quote some parts. There’s of course the parable of the fish and the water that goes, there are these two young fish swimming along and they happen to meet an older fish swimming the other way who nods at them and says, “Morning boys, how’s the water?” And the two young fish swim on for a bit and then eventually one of them looks over at the other and goes, “What the hell is water?” In the speech, David Foster Wallace goes on to say, “The point of the fish story is merely that the most obvious important realities are often the ones that are hardest to see and talk about. Stated as an English sentence of course, this is just the banal platitude, but the fact is that in the day to day trenches of adult existence, banal platitudes can have a life or death importance, or so I wish to suggest to you in this dry and lovely morning.” I have several takeaways from this parable and the speech that follows. First, I think we must question everything, and in particular, the most basic assumptions about our reality, our life, and the very nature of existence, and that this project is a deeply personal one. In some fundamental sense, nobody can really help you in this process of discovery.
The call to action here, I think, from David Foster Wallace as he puts it, is to ” To be just a little less arrogant, to have just a little more critical awareness about myself and my certainties because a huge percentage of the stuff that I tend to be automatically certain of is it turns out totally wrong and deluded.” All right, back to me. Lex speaking. Second takeaway is that the central spiritual battles of our life are not fought on a mountain top somewhere at a meditation retreat, but it’s fought in the mundane moments of daily life.
Third takeaway is that we too easily give away our time and attention to the multitude of distractions that the world feeds us, the insatiable black holes of attention. David Foster Wallace’s call to action in this case is to be deeply aware of the beauty in each moment and to find meaning in the mundane. I often quote David Foster Wallace in his advice that the key to life is to be unborable, and I think this is exactly right. Every moment, every object, every experience when looked at closely enough contains within it infinite richness to explore. And since Demis Hassabis of this very podcast episode and I are such fans of Richard Feynman, allow me to also quote Mr. Feynman on this topic as well.
“I have a friend who’s an artist and has sometimes taken a view which I don’t agree with very well. He’ll hold up a flower and say, “Look how beautiful it is,” and I’ll agree. Then he says, “I as an artist can see how beautiful this is, but you as a scientist take this all apart and it becomes a dull thing,” and I think that’s kind of nutty. First of all, the beauty that he sees is available to other people and to me too, I believe. Although I may not be quite as refined aesthetically as he is, I can appreciate the beauty of a flower. At the same time, I see much more about the flower than he sees. I could imagine the cells in there, the complicated actions inside which also have beauty. I mean, it’s not just beauty at this dimension at one centimeter, there’s also beauty at the smaller dimensions.”
“Their inner structure, also the processes, the fact that the colors and the flower evolved in order to attract the insects to pollinate it is interesting. It means that the insects can see the color. It adds a question. Does this aesthetic sense also exist in lower forms? Why is it aesthetic? All kinds of interesting questions, which the science knowledge only adds to the excitement, the mystery, and the awe of a flower. It only adds.”
All right, back to David Foster Wallace’s speech. He has a great story in there that I particularly enjoy. It goes, there are these two guys sitting together in a bar in the remote Alaskan wilderness. One of the guys is religious, the other is an atheist, and the two are arguing about the existence of God with that special intensity that comes after about the fourth beer. And the atheist says, “Look, it’s not like I don’t have actual reasons for not believing in God. It’s not like I haven’t ever experimented with the whole God and prayer thing. Just last month, I got caught away from the camp in that terrible blizzard, and I was totally lost and I couldn’t see a thing and it was 50 below. So I tried it. I fell in my knees in the snow and cried out, ‘Oh God, if there is a God, I’m lost in this blizzard and I’m going to die if you don’t help me.”
And now back in the bar, the religious guy looks at the atheist all puzzled, “Well, then you must believe now?” he says, “After all, there you are, alive.” The atheist just rolls his eyes. “No, man. All that happened was a couple of Eskimos happened to be wandering by and showed me the way back to the camp.” All this, I think, teaches us that everything is a matter of perspective and that wisdom may arrive if we have the humility to keep shifting and expanding our perspective on the world. Thank you for allowing me to talk a bit about David Foster Wallace. He’s one of my favorite writers and he’s a beautiful soul.
If I may, one more thing I wanted to briefly comment on. I find myself to be in this strange position of getting attacked online often from all sides, including being lied about sometimes through selective misrepresentation, but often through downright lies. I don’t know how else to put it. This all breaks my heart, frankly, but I’ve come to understand that it’s the way of the internet and the cost of the path I’ve chosen. There’s been days when it’s been rough on me mentally. It’s not fun being lied about, especially when it’s about things that are usually for a long time have been a source of happiness and joy for me. But again, that’s life.
I’ll continue exploring the world of people and ideas with empathy and rigor, wearing my heart on my sleeve as much as I can. For me, that’s the only way to live. Anyway, a common attack on me is about my time at MIT and Drexel, two great universities I love and have tremendous respect for. Since a bunch of lies have accumulated online about me on these topics, to a sad and at times hilarious degree, I thought I would once more state the obvious facts about my bio for the small number of you who may care. TLDR, two things. First, as I say often, including in a recent podcast episode that somehow was listened to by many millions of people, I proudly went to Drexel University for my bachelor’s, master’s, and doctorate degrees.
Second, I am a research scientist at MIT and have been there in a paid research position for the last 10 years. Allow me to elaborate a bit more on these two things now, but please skip if this is not at all interesting. So like I said, a common attack on me is that I have no real affiliation with MIT. The accusation, I guess, is that I’m falsely claiming an MIT affiliation because I taught a lecture there once. Nope, that accusation against me is a complete lie. I have been at MIT for over 10 years in a paid research position from 2015 to today. To be extra clear, I’m a research scientist at MIT working in LIDS, the Laboratory for Information and Decision Systems in the College of Computing. For now, since I’m still at MIT, you can see me in the directory and on the various lab pages.
I have indeed given many lectures at MIT over the years, a small fraction of which I posted online. Teaching for me always has been just for fun and not part of my research work. I personally think I suck at it, but I have always learned and grown from the experience. It’s like Feynman spoke about, if you want to understand something deeply, it’s good to try to teach it. But like I said, my main focus has always been on research. I published many peer-reviewed papers that you can see in my Google Scholar profile. For my first four years at MIT, I worked extremely intensively. Most weeks were 80 to 100-hour work weeks. After that, in 2019, I still kept my research scientist position, but I split my time taking a leap to pursue projects in AI and robotics outside MIT and to dedicate a lot of focus to the podcast.
As I’ve said, I’ve been continuously surprised just how many hours preparing for an episode takes. There are many episodes of the podcast for which I have to read, write, and think for 100, 200 or more hours across multiple weeks and months. Since 2020, I have not actively published research papers. Just like the podcast, I think it’s something that’s a serious full-time effort. But not publishing and doing full-time research has been eating at me because I love research and I love programming and building systems that test out interesting technical ideas, especially in the context of human-AI or human-robot interaction. I hope to change this in the coming months and years.
What I’ve come to realize about myself is if I don’t publish or if I don’t launch systems that people use, I definitely feel like a piece of me is missing. It legitimately is a source of happiness for me. Anyway, I’m proud of my time at MIT. I was and am constantly surrounded by people much smarter than me, many of whom have become lifelong colleagues and friends. MIT is a place I go to escape the world, to focus on exploring fascinating questions at the cutting edge of science and engineering. This, again, makes me truly happy and it does hit pretty hard on a psychological level when I’m getting attacked over this. Perhaps I’m doing something wrong. If I am, I will try to do better.
In all this discussion of academic work, I hope you know that I don’t ever mean to say that I’m an expert at anything. In the podcast and in my private life, I don’t claim to be smart. In fact, I often call myself an idiot and mean it. I try to make fun of myself as much as possible, and in general to celebrate others instead. Now to talk about Drexel University, which I also love, am proud of and am deeply grateful for my time there. As I said, I went to Drexel for my bachelor’s, master’s, and doctorate degrees in computer science and electrical engineering. I’ve talked about Drexel many times, including, as I mentioned, at the end of a recent podcast, the Donald Trump episode. funny enough, that was listened to by many millions of people where I answered a question about graduate school and explained my own journey at Drexel and how grateful I am for it.
If it’s at all interesting to you, please go listen to the end of that episode or watch the related clip. At Drexel, I met and worked with many brilliant researchers and mentors from whom I’ve learned a lot about engineering, science and life. There are many valuable things I gained from my time at Drexel. First, I took a large number of very difficult math and theoretical computer science courses. They taught me how to think deeply and rigorously, and also how to work hard and not give up even if it feels like I’m too dumb to find a solution to a technical problem.
Second, I programmed a lot during that time, mostly C, C++. I programmed robots, optimization algorithms, computer vision systems, wireless network protocols, multimodal machine learning systems, and all kinds of simulations of physical systems. This is where I really developed a love for programming, including, yes, Emacs And the Kinesis keyboard. I also, during that time, read a lot, I played a lot of guitar, wrote a lot of crappy poetry, and trained a lot in judo and jiu-jitsu, which I cannot sing enough praises to. Jiu-jitsu humbled me on a daily basis throughout my twenties, and it still does to this very day whenever I get a chance to train.
Anyway, I hope that the folks who occasionally get swept up in the chanting online crowds that want to tear down others don’t lose themselves in it too much. In the end, I still think there’s more good than bad in people. But we’re all each of us a mixed bag. I know I am very much flawed. I speak awkwardly. I sometimes say stupid shit. I can get irrationally emotional. I can be too much of a dick when I should be kind. I can lose myself in a biased rabbit hole before I wake up to the bigger, more accurate picture of reality. I’m human and so are you for better or for worse, and I do still believe we’re in this whole beautiful mess together. I love you all.
Click link to jump approximately to that part in the transcript:
- 0:00 – Episode highlight
- 1:21 – Introduction
- 2:06 – Learnable patterns in nature
- 5:48 – Computation and P vs NP
- 14:26 – Veo 3 and understanding reality
- 18:50 – Video games
- 30:52 – AlphaEvolve
- 36:53 – AI research
- 41:17 – Simulating a biological organism
- 46:00 – Origin of life
- 52:15 – Path to AGI
- 1:03:01 – Scaling laws
- 1:06:17 – Compute
- 1:09:04 – Future of energy
- 1:13:00 – Human nature
- 1:17:54 – Google and the race to AGI
- 1:35:53 – Competition and AI talent
- 1:42:27 – Future of programming
- 1:48:53 – John von Neumann
- 1:58:07 – p(doom)
- 2:02:50 – Humanity
- 2:05:56 – Consciousness and quantum computation
- 2:12:06 – David Foster Wallace
- 2:19:20 – Education and research
Episode highlight
Lex Fridman
It’s hard for us humans to make any kind of clean predictions about highly nonlinear dynamical systems. But again, to your point, we might be very surprised what classical learning systems might be able to do about even fluid.
It’s hard for us humans to make any kind of clean predictions about highly nonlinear dynamical systems. But again, to your point, we might be very surprised what classical learning systems might be able to do about even fluid.
Demis Hassabis
Yes, exactly. I mean, fluid dynamics, Navier-Stokes equations, these are traditionally thought of as very, very difficult intractable problems to do on classical systems. They take enormous amounts of compute, weather prediction systems. These kinds of things all involve fluid dynamics calculations.
Yes, exactly. I mean, fluid dynamics, Navier-Stokes equations, these are traditionally thought of as very, very difficult intractable problems to do on classical systems. They take enormous amounts of compute, weather prediction systems. These kinds of things all involve fluid dynamics calculations.
But again, if you look at something like Veo, our video generation model, it can model liquids quite well, surprisingly well. And materials, specular lighting, I love the ones where there’s people who generate videos where there’s clear liquids going through hydraulic presses and then it’s being squeezed out. I used to write physics engines and graphics engines in my early days in gaming, and I know it’s just so painstakingly hard to build programs that can do that. And yet somehow these systems are reverse engineering from just watching YouTube videos. So presumably what’s happening is it’s extracting some underlying structure around how these materials behave. So perhaps there is some kind of lower dimensional manifold that can be learned if we actually fully understood what’s going on under the hood. That’s maybe true of most of reality.
Introduction
Lex Fridman
The following is a conversation with Demis Hassabis, his second time on the podcast. He is the leader of Google DeepMind and is now a Nobel Prize winner. Demis is one of the most brilliant and fascinating minds in the world today working on understanding and building intelligence and exploring the big mysteries of our universe. This was truly an honor and a pleasure for me.
The following is a conversation with Demis Hassabis, his second time on the podcast. He is the leader of Google DeepMind and is now a Nobel Prize winner. Demis is one of the most brilliant and fascinating minds in the world today working on understanding and building intelligence and exploring the big mysteries of our universe. This was truly an honor and a pleasure for me.
This is the Lex Fridman Podcast. To support it, please check out our sponsors in the description and consider subscribing to this channel. And now, dear friends, here’s Demis Hassabis.
Learnable patterns in nature
Lex Fridman
In your Nobel Prize lecture, you propose what I think is a super interesting conjecture that “any pattern that can be generated or found in nature can be efficiently discovered and modeled by a classical learning algorithm.” What kind of patterns or systems might be included in that? Biology, chemistry, physics, maybe cosmology, neuroscience? What are we talking about?
In your Nobel Prize lecture, you propose what I think is a super interesting conjecture that “any pattern that can be generated or found in nature can be efficiently discovered and modeled by a classical learning algorithm.” What kind of patterns or systems might be included in that? Biology, chemistry, physics, maybe cosmology, neuroscience? What are we talking about?
Demis Hassabis
Sure. Well, look, I felt that it’s sort of a tradition, I think, of Nobel Prize lectures that you’re supposed to be a little bit provocative and I wanted to follow that tradition. What I was talking about there is if you take a step back and you look at all the work that we’ve done, especially with the Alpha X projects, so I’m thinking AlphaGo, of course, AlphaFold, what they really are is we are building models of very combinatorially, high dimensional spaces that if you try to brute force a solution, find the best move and go, or find the exact shape of a protein, and if you enumerated all the possibilities, there wouldn’t be enough time in the time of the universe.
Sure. Well, look, I felt that it’s sort of a tradition, I think, of Nobel Prize lectures that you’re supposed to be a little bit provocative and I wanted to follow that tradition. What I was talking about there is if you take a step back and you look at all the work that we’ve done, especially with the Alpha X projects, so I’m thinking AlphaGo, of course, AlphaFold, what they really are is we are building models of very combinatorially, high dimensional spaces that if you try to brute force a solution, find the best move and go, or find the exact shape of a protein, and if you enumerated all the possibilities, there wouldn’t be enough time in the time of the universe.
So you have to do something much smarter. And what we did in both cases was build models of those environments and that guided the search in a smart way and that makes it tractable. So if you think about protein folding, which is obviously a natural system, why should that be possible? How does physics do that? Proteins fold in milliseconds in our bodies, so somehow physics solves this problem that we’ve now also solved computationally. And I think the reason that’s possible is that in nature, natural systems have structure because they were subject to evolutionary processes that shape them. And if that’s true, then you can maybe learn what that structure is.
Lex Fridman
This perspective I think is a really interesting one. You’ve hinted it at it, which is almost like crudely stated, anything that can be evolved can be efficiently modeled. Think there’s some truth to that?
This perspective I think is a really interesting one. You’ve hinted it at it, which is almost like crudely stated, anything that can be evolved can be efficiently modeled. Think there’s some truth to that?
Demis Hassabis
Yeah. I sometimes call it survival of the stablest or something like that because of course there’s evolution for life, living things, but there’s also, if you think about geological times, so the shape of mountains, that’s been shaped by weathering processes over thousands of years, but then you can even take it cosmological, the orbits of planets, the shapes of asteroids. These have all been survived kind of processes that have acted on them many, many times.
Yeah. I sometimes call it survival of the stablest or something like that because of course there’s evolution for life, living things, but there’s also, if you think about geological times, so the shape of mountains, that’s been shaped by weathering processes over thousands of years, but then you can even take it cosmological, the orbits of planets, the shapes of asteroids. These have all been survived kind of processes that have acted on them many, many times.
If that’s true, then there should be some sort of pattern that you can kind of reverse learn and a kind of manifold really that helps you search to the right solution, to the right shape and actually allow you to predict things about it in an efficient way because it’s not a random pattern. So it may not be possible for man-made things or abstract things like factorizing large numbers because unless there’s patterns in the number space, which there might be, but if there’s not and it’s uniform, then there’s no pattern to learn, there’s no model to learn that will help you search. So you have to do brute force. So in that case you maybe need a quantum computer, something like this. But in most things in nature that we’re interested in are not like that. They have structure that evolved for a reason and survived over time. And if that’s true, I think that’s potentially learnable by a neural network.
Lex Fridman
It’s like nature is doing a search process and it’s so fascinating that in that search process, it’s creating systems that could be efficiently modeled.
It’s like nature is doing a search process and it’s so fascinating that in that search process, it’s creating systems that could be efficiently modeled.
Demis Hassabis
That’s right. Yeah.
That’s right. Yeah.
Lex Fridman
So interesting.
So interesting.
Demis Hassabis
So they can be efficiently rediscovered or recovered because nature’s not random. Everything that we see around us, including the elements that are more stable, all of those things, they’re subject to some kind of selection process pressure.
So they can be efficiently rediscovered or recovered because nature’s not random. Everything that we see around us, including the elements that are more stable, all of those things, they’re subject to some kind of selection process pressure.
Computation and P vs NP
Lex Fridman
Do you think because you’re also a fan of theoretical computer science and complexity, do you think we can come up with a complexity class, like a complexity zoo type of class where maybe it’s the set of learnable systems, the set of learnable natural systems, LNS. This is a Demis Hassabis new class of systems that could be actually learnable by classical systems in this kind of way, natural systems that can be modeled efficiently.
Do you think because you’re also a fan of theoretical computer science and complexity, do you think we can come up with a complexity class, like a complexity zoo type of class where maybe it’s the set of learnable systems, the set of learnable natural systems, LNS. This is a Demis Hassabis new class of systems that could be actually learnable by classical systems in this kind of way, natural systems that can be modeled efficiently.
Demis Hassabis
Yeah, I mean I’ve always been fascinated by the P equals NP question and what is model-able by classical systems, i.e. non-quantum systems, Turing machines in effect. And that’s exactly what I’m working on actually in my few moments of spare time with a few colleagues about should there be maybe a new class or problem that is solvable by this type of neural network process and kind of mapped onto these natural systems, so the things that exist in physics and have structure. So I think that could be a very interesting new way of thinking about it. And it sort of fits with the way I think about physics in general, which is that I think information is primary, information is the most sort of fundamental unit of the universe, more fundamental than energy and matter. I think they can all be converted into each other, but I think of the universe as a kind of informational system.
Yeah, I mean I’ve always been fascinated by the P equals NP question and what is model-able by classical systems, i.e. non-quantum systems, Turing machines in effect. And that’s exactly what I’m working on actually in my few moments of spare time with a few colleagues about should there be maybe a new class or problem that is solvable by this type of neural network process and kind of mapped onto these natural systems, so the things that exist in physics and have structure. So I think that could be a very interesting new way of thinking about it. And it sort of fits with the way I think about physics in general, which is that I think information is primary, information is the most sort of fundamental unit of the universe, more fundamental than energy and matter. I think they can all be converted into each other, but I think of the universe as a kind of informational system.
Lex Fridman
So when you think of the universe as an informational system, then the P equals NP question is a physics question.
So when you think of the universe as an informational system, then the P equals NP question is a physics question.
Demis Hassabis
That’s right.
That’s right.
Lex Fridman
And is a question that can help us actually solve the entirety of this whole thing going on.
And is a question that can help us actually solve the entirety of this whole thing going on.
Demis Hassabis
Yeah, I think it’s one of the most fundamental questions actually if you think of physics as informational and the answer to that, I think it’s going to be very enlightening.
Yeah, I think it’s one of the most fundamental questions actually if you think of physics as informational and the answer to that, I think it’s going to be very enlightening.
Lex Fridman
More specific to the P and MP question, again, some of the stuff we’re saying is kind of crazy right now just like the Christian Anfinsen Nobel Prize speech, controversial thing that he said sounded crazy and then you went and got a Nobel Prize for this with John Jumper, solved the problem. So let me just stick to the P equals NP. Do you think there’s something in this thing we’re talking about that could be shown if you can do something like a polynomial time or constant time compute ahead of time and construct this gigantic model, then you can solve some of these extremely difficult problems in a theoretical computer science kind of way?
More specific to the P and MP question, again, some of the stuff we’re saying is kind of crazy right now just like the Christian Anfinsen Nobel Prize speech, controversial thing that he said sounded crazy and then you went and got a Nobel Prize for this with John Jumper, solved the problem. So let me just stick to the P equals NP. Do you think there’s something in this thing we’re talking about that could be shown if you can do something like a polynomial time or constant time compute ahead of time and construct this gigantic model, then you can solve some of these extremely difficult problems in a theoretical computer science kind of way?
Demis Hassabis
Yeah, I think that there are actually a huge class of problems that could be couched in this way, the way we did AlphaGo and the way we did AlphaFold, where you model what the dynamics of the system is, the properties of that system, the environment that you are trying to understand, and then that makes the search for the solution or the prediction of the next step efficient. Basically polynomial times, so tractable by a classical system, which a neural network is. It runs on normal computers, right? Classical computers, Turing machines in effect. And I think it’s one of the most interesting questions there is, is how far can that paradigm go?
Yeah, I think that there are actually a huge class of problems that could be couched in this way, the way we did AlphaGo and the way we did AlphaFold, where you model what the dynamics of the system is, the properties of that system, the environment that you are trying to understand, and then that makes the search for the solution or the prediction of the next step efficient. Basically polynomial times, so tractable by a classical system, which a neural network is. It runs on normal computers, right? Classical computers, Turing machines in effect. And I think it’s one of the most interesting questions there is, is how far can that paradigm go?
I think we’ve proven, and the AI community in general that classical systems, Turing machines can go a lot further than we previously thought. They can do things like model the structures of proteins and play go to better than world champion level. And a lot of people would’ve thought maybe 10, 20 years ago that was decades away, or maybe you would need some sort of quantum machines to quantum systems to be able to do things like protein folding. And so I think we haven’t really even sort of scratched the surface yet of what classical systems so-called could do.
And of course, AGI being built on a neural network system on top of a neural network system on top of a classical computer would be the ultimate expression of that. And I think the limit, what the bounds of that kind of system, what it can do, it’s a very interesting question and directly speaks to the P equals NP question.
Lex Fridman
What do you think, again, hypothetical, might be outside of this? Maybe emergent phenomena? If you look at cellular automata, you have extremely simple systems and then some complexity emerges. Maybe that would be outside or even would you guess even that might be amenable to efficient modeling by a classical machine?
What do you think, again, hypothetical, might be outside of this? Maybe emergent phenomena? If you look at cellular automata, you have extremely simple systems and then some complexity emerges. Maybe that would be outside or even would you guess even that might be amenable to efficient modeling by a classical machine?
Demis Hassabis
Yeah, I think those systems would be right on the boundary. So I think most emergent systems, cellular automata, things like that could be model-able by a classical system. You just sort of do a forward simulation of it and it’d probably be efficient enough. Of course there’s the question of things like chaotic systems where the initial conditions really matter and then you get to some uncorrelated end state. Now those could be difficult to model. So I think these are kind of the open questions, but I think when you step back and look at what we’ve done with the systems and the problems that we’ve solved, and then you look at things like Veo 3 on video generation sort of rendering physics and lighting and things like that, really core fundamental things in physics, it’s pretty interesting. I think it’s telling us something quite fundamental about how the universe is structured in my opinion. So in a way that’s what I want to build AGI for is to help us as scientists answer these questions like P equals NP.
Yeah, I think those systems would be right on the boundary. So I think most emergent systems, cellular automata, things like that could be model-able by a classical system. You just sort of do a forward simulation of it and it’d probably be efficient enough. Of course there’s the question of things like chaotic systems where the initial conditions really matter and then you get to some uncorrelated end state. Now those could be difficult to model. So I think these are kind of the open questions, but I think when you step back and look at what we’ve done with the systems and the problems that we’ve solved, and then you look at things like Veo 3 on video generation sort of rendering physics and lighting and things like that, really core fundamental things in physics, it’s pretty interesting. I think it’s telling us something quite fundamental about how the universe is structured in my opinion. So in a way that’s what I want to build AGI for is to help us as scientists answer these questions like P equals NP.
Lex Fridman
Yeah, I think we might be continuously surprised about what is model-able by classical computers. I mean AlphaFold 3 on the interaction side is surprising that you can make any kind of progress on that direction. AlphaGenome is surprising that you can map the genetic code to the function. Kind of playing with the emergent kind of phenomena, you think there’s so many combinatorial options and then here you go, you can find the kernel that is efficiently model-able.
Yeah, I think we might be continuously surprised about what is model-able by classical computers. I mean AlphaFold 3 on the interaction side is surprising that you can make any kind of progress on that direction. AlphaGenome is surprising that you can map the genetic code to the function. Kind of playing with the emergent kind of phenomena, you think there’s so many combinatorial options and then here you go, you can find the kernel that is efficiently model-able.
Demis Hassabis
Yes, because there’s some structure, there’s some landscape in the energy landscape or whatever it is that you can follow, some gradient you can follow. And of course what neural networks are very good at is following gradients. And so if there’s one to follow and you can specify the objective function correctly, you don’t have to deal with all that complexity, which I think is how we maybe have naively thought about it for decades, those problems. If you just enumerate all the possibilities, it looks totally intractable and there’s many, many problems like that.
Yes, because there’s some structure, there’s some landscape in the energy landscape or whatever it is that you can follow, some gradient you can follow. And of course what neural networks are very good at is following gradients. And so if there’s one to follow and you can specify the objective function correctly, you don’t have to deal with all that complexity, which I think is how we maybe have naively thought about it for decades, those problems. If you just enumerate all the possibilities, it looks totally intractable and there’s many, many problems like that.
And then you think, “Well, it’s like 10 to 300 possible protein structures, 10 to the 170 possible go positions. All of these are way more than atoms in the universe, so how could one possibly find the right solution or predict the next step?” But it turns out that it is possible. And of course reality in nature does do it. Proteins do fold. So that gives you confidence that there must be, if we understood how physics was doing that in a sense and we could mimic that process, i.e. model that process, it should be possible on our classical systems is basically what the conjecture is about.
Lex Fridman
And of course there’s nonlinear dynamical systems, highly nonlinear dynamical systems, everything involving fluid. I recently had a conversation with Terence Tao who mathematically contends with a very difficult aspect of systems that have some singularities in them that break the mathematics, and it’s just hard for us humans to make any kind of clean predictions about highly nonlinear dynamical systems. But again, to your point, we might be very surprised what classical learning systems might be able to do about even fluid.
And of course there’s nonlinear dynamical systems, highly nonlinear dynamical systems, everything involving fluid. I recently had a conversation with Terence Tao who mathematically contends with a very difficult aspect of systems that have some singularities in them that break the mathematics, and it’s just hard for us humans to make any kind of clean predictions about highly nonlinear dynamical systems. But again, to your point, we might be very surprised what classical learning systems might be able to do about even fluid.
Demis Hassabis
Yes, exactly. I mean fluid dynamics, Navier-Stokes equations, these are traditionally thought of as very, very difficult, intractable kind of problems to do on classical systems. They take enormous amounts of compute, weather prediction systems. These kind of things all involve fluid dynamics calculations. But again, if you look at something like Veo, our video generation model, it can model liquids quite well, surprisingly well. And materials, specular lighting, I love the ones where there’s people who generate videos where there’s clear liquids going through hydraulic presses and then it’s being squeezed out. I used to write physics engines and graphics engines in my early days in gaming, and I know it’s just so painstakingly hard to build programs that can do that. And yet somehow these systems are reverse engineering from just watching YouTube videos. So presumably what’s happening is it’s extracting some underlying structure around how these materials behave. So perhaps there is some kind of lower dimensional manifold that can be learned if we actually fully understood what’s going on under the hood. That’s maybe true of most of reality.
Yes, exactly. I mean fluid dynamics, Navier-Stokes equations, these are traditionally thought of as very, very difficult, intractable kind of problems to do on classical systems. They take enormous amounts of compute, weather prediction systems. These kind of things all involve fluid dynamics calculations. But again, if you look at something like Veo, our video generation model, it can model liquids quite well, surprisingly well. And materials, specular lighting, I love the ones where there’s people who generate videos where there’s clear liquids going through hydraulic presses and then it’s being squeezed out. I used to write physics engines and graphics engines in my early days in gaming, and I know it’s just so painstakingly hard to build programs that can do that. And yet somehow these systems are reverse engineering from just watching YouTube videos. So presumably what’s happening is it’s extracting some underlying structure around how these materials behave. So perhaps there is some kind of lower dimensional manifold that can be learned if we actually fully understood what’s going on under the hood. That’s maybe true of most of reality.
Veo 3 and understanding reality
Lex Fridman
Yeah, I’ve been continuously precisely by this aspect of Veo 3. I think a lot of people highlight different aspects including the comedic and the mean and all that kind of stuff. And then the ultra realistic ability to capture humans in a really nice way that’s compelling and feels close to reality, and then combine that with native audio. All of those are marvelous things about Veo 3, but exactly the thing you’re mentioning, which is the physics.
Yeah, I’ve been continuously precisely by this aspect of Veo 3. I think a lot of people highlight different aspects including the comedic and the mean and all that kind of stuff. And then the ultra realistic ability to capture humans in a really nice way that’s compelling and feels close to reality, and then combine that with native audio. All of those are marvelous things about Veo 3, but exactly the thing you’re mentioning, which is the physics.
Demis Hassabis
Yeah.
Yeah.
Lex Fridman
It’s not perfect, but it’s pretty damn good. And then the really interesting scientific question is what is it understanding about our world in order to be able to do that? Because if the cynical, take with diffusion models, there’s no way to understands anything. But I don’t think you can generate that kind of video without understanding. And then our own philosophical notion of what it means to understand then is brought to the surface. To what degree do you think Veo 3 understands our world?
It’s not perfect, but it’s pretty damn good. And then the really interesting scientific question is what is it understanding about our world in order to be able to do that? Because if the cynical, take with diffusion models, there’s no way to understands anything. But I don’t think you can generate that kind of video without understanding. And then our own philosophical notion of what it means to understand then is brought to the surface. To what degree do you think Veo 3 understands our world?
Demis Hassabis
I think to the extent that it can predict the next frames in a coherent way, that is a form of understanding, not in the anthropomorphic version of, it’s not some kind of deep philosophical understanding of what’s going on, I don’t think these systems have that, but they certainly have modeled enough of the dynamics, put it that way, that they can pretty accurately generate whatever it is, eight seconds of consistent video that by eye, at least at a glance, is quite hard to distinguish what the issues are.
I think to the extent that it can predict the next frames in a coherent way, that is a form of understanding, not in the anthropomorphic version of, it’s not some kind of deep philosophical understanding of what’s going on, I don’t think these systems have that, but they certainly have modeled enough of the dynamics, put it that way, that they can pretty accurately generate whatever it is, eight seconds of consistent video that by eye, at least at a glance, is quite hard to distinguish what the issues are.
And imagine that in two or three more years’ time, that’s the thing I’m thinking about and how incredible that will look given where we’ve come from the early versions of that one or two years ago. And so the rate of progress is incredible. And I think I’m like you is like a lot of people love all of the stand-up comedians and that actually captures a lot of human dynamics very well and body language, but actually the thing I’m most impressed with and fascinated by is the physics behavior, the lighting and materials and liquids. And it’s pretty amazing that it can do that. And I think that shows that it has some notion of at least intuitive physics, how things are supposed to work intuitively, maybe the way that a human child would understand physics, right, as opposed to a PhD student really being able to unpack all the equations. It’s more of an intuitive physics understanding.
Lex Fridman
Well, that intuitive physics understanding, that’s the base layer, that’s the thing people sometimes call a common-sense. It really understands something. I think that really surprised a lot of people. It blows my mind that I just didn’t think it would be possible to generate that level of realism without understanding. There’s this notion that you can only understand the physical world by having an embodied AI system, a robot that interacts with that world. That’s the only way to construct an understanding of that world. But Veo 3 is directly challenging that it feels like.
Well, that intuitive physics understanding, that’s the base layer, that’s the thing people sometimes call a common-sense. It really understands something. I think that really surprised a lot of people. It blows my mind that I just didn’t think it would be possible to generate that level of realism without understanding. There’s this notion that you can only understand the physical world by having an embodied AI system, a robot that interacts with that world. That’s the only way to construct an understanding of that world. But Veo 3 is directly challenging that it feels like.
Demis Hassabis
Yes, and it’s very interesting, even if you were to ask me five, 10 years ago, I would’ve said, even though I was immersed in all of this, I would’ve said, “Well, yeah, you probably need to understand intuitive physics. If I push this off the table, this glass, it will maybe shatter and the liquid will spill out. So we know all of these things.” But I thought that, and there’s a lot of theories in neuroscience, it’s called action in perception where you need to act in the world to really, truly perceive it in a deep way. And there was a lot of theories about you’d need embodied intelligence or robotics or something, or maybe at least simulated action so that you would understand things like intuitive physics.
Yes, and it’s very interesting, even if you were to ask me five, 10 years ago, I would’ve said, even though I was immersed in all of this, I would’ve said, “Well, yeah, you probably need to understand intuitive physics. If I push this off the table, this glass, it will maybe shatter and the liquid will spill out. So we know all of these things.” But I thought that, and there’s a lot of theories in neuroscience, it’s called action in perception where you need to act in the world to really, truly perceive it in a deep way. And there was a lot of theories about you’d need embodied intelligence or robotics or something, or maybe at least simulated action so that you would understand things like intuitive physics.
But it seems like you can understand it through passive observation, which is pretty surprising to me. And again, I think hints at something underlying about the nature of reality in my opinion, beyond just the cool videos that it generates. And of course there’s next stages is maybe even making those videos interactive so one can actually step into them and move around them, which would be really mind-blowing, especially given my games background. So you can imagine. And then I think we’re starting to get towards what I would call a world model, a model of how the world works, the mechanics of the world, the physics of the world, and the things in that world. And of course that’s what you would need for a true AGI system.
Video games
Lex Fridman
I have to talk to you about video games. So you are being a bit trolley. I think you’re having more and more fun on Twitter, on X, which is great to see. So a guy named Jimmy Apples tweeted, “Let me play a video game of my Veo 3 videos already. Google cooked so good. Playable world models wen?” And then you co-tweeted that with, “Now, wouldn’t that be something?” So how hard is it to build game worlds with AI? Maybe can you look out into the future feature of video games five, 10 years out? What do you think that looks like?
I have to talk to you about video games. So you are being a bit trolley. I think you’re having more and more fun on Twitter, on X, which is great to see. So a guy named Jimmy Apples tweeted, “Let me play a video game of my Veo 3 videos already. Google cooked so good. Playable world models wen?” And then you co-tweeted that with, “Now, wouldn’t that be something?” So how hard is it to build game worlds with AI? Maybe can you look out into the future feature of video games five, 10 years out? What do you think that looks like?
Demis Hassabis
Well, games were my first love really. And doing AI for games was the first thing I did professionally in my teenage years and with the first major AI systems that I built and I always want to scratch that itch one day and come back to that. And I will do, I think, and I think I sort of dream about what would I have done back in the nineties if I’d had access to the kind of AI systems we have today? And I think you could build absolutely mind-blowing games.
Well, games were my first love really. And doing AI for games was the first thing I did professionally in my teenage years and with the first major AI systems that I built and I always want to scratch that itch one day and come back to that. And I will do, I think, and I think I sort of dream about what would I have done back in the nineties if I’d had access to the kind of AI systems we have today? And I think you could build absolutely mind-blowing games.
And I think the next stage is I always used to love making, all the games I’ve made are open world games, so they’re games where there’s a simulation and then there’s AI characters, and then the player interacts with that simulation and the simulation adapts to the way the player plays. And I always thought they were the coolest games because, so games like Theme Park that I worked on where everybody’s game experience would be unique to them because you’re kind of co-creating the game. We set up the parameters, we set up initial conditions, and then you as the player immersed in it, and then you are co-creating it with the simulation. But of course it’s very hard to program open world games. You’ve got to be able to create content whichever direction the player goes in, and you want it to be compelling no matter what the player chooses. And so it was always quite difficult to build things like cellular automata actually, type of those kind of classical systems, which created some emergent behavior, but they’re always a little bit fragile, a little bit limited. Now we are maybe on the cusp in the next few years, five, 10 years of having AI systems that can truly create around your imagination, can dynamically change the story and storytell the narrative around and make it dramatic no matter what you end up choosing. So it’s like the ultimate choose your own adventure sort of game. And I think maybe we are within reach, if you think of a kind of interactive version of Veo and then wind that forward five to 10 years and imagine how good it’s going to be.
Lex Fridman
Yeah. So you said a lot of super interesting stuff there. So one, the open world, built into that is a deep personalization the way you’ve described it. So it’s not just that it’s open world, that you can open any door and there’ll be something there, it’s that it’s the choice of which door you open in an unconstrained way defines the worlds you see. So some games try to do that, they give you choice, but it’s really just an illusion of choice because you only, like Stanley Parable, a game I actually played, it’s really, there’s a couple of doors and it really just takes you down a narrative. Stanley Parable is a great video game. I recommend people play it, that in a meta way, mocks the illusion of choice, and there’s philosophical notions of free will and so on.
Yeah. So you said a lot of super interesting stuff there. So one, the open world, built into that is a deep personalization the way you’ve described it. So it’s not just that it’s open world, that you can open any door and there’ll be something there, it’s that it’s the choice of which door you open in an unconstrained way defines the worlds you see. So some games try to do that, they give you choice, but it’s really just an illusion of choice because you only, like Stanley Parable, a game I actually played, it’s really, there’s a couple of doors and it really just takes you down a narrative. Stanley Parable is a great video game. I recommend people play it, that in a meta way, mocks the illusion of choice, and there’s philosophical notions of free will and so on.
But I do, one of my favorite games of Elder Scrolls is Daggerfall I believe, that they really played with a random generation of the dungeons of if you can step in and they give you this feeling of an open world. And there you mentioned interactivity. You don’t need to interact. That’s the first step because you don’t need to interact that much. You just, when you open the door, whatever you see is randomly generated for you. And that’s already an incredible experience because you might be the only person to ever see that.
Demis Hassabis
Yeah, exactly. But what you’d like is a little bit better than just sort of a random generation. So you’d like, and also better than a simple AB hard coded choice, right? That’s not really open world, as you say. It’s just giving you the illusion of choice. What you want to be able to do is potentially anything in that game environment. And I think the only way you can do that is to have generated systems, systems that will generate that on the fly. Of course, you can’t create infinite amounts of game assets. It’s expensive enough already how AAA games are made today. And that was obvious to us back in the nineties when I was working on all these games.
Yeah, exactly. But what you’d like is a little bit better than just sort of a random generation. So you’d like, and also better than a simple AB hard coded choice, right? That’s not really open world, as you say. It’s just giving you the illusion of choice. What you want to be able to do is potentially anything in that game environment. And I think the only way you can do that is to have generated systems, systems that will generate that on the fly. Of course, you can’t create infinite amounts of game assets. It’s expensive enough already how AAA games are made today. And that was obvious to us back in the nineties when I was working on all these games.
I think maybe Black & White was the game that I worked on early stages of that, that had still probably the best AI, learning AI, in it. It was an early reinforcement learning system that you were looking after this mythical creature and growing it and nurturing it. And depending how you treated it, it would treat the villagers in that world the same way. So if you were mean to it, it would be mean. If you were good, it would be protective. And so it was really a reflection of the way you played it. So actually all of the, I’ve been working on simulations and AI through the medium of games at the beginning of my career, and really the whole of what I do today, it’s still a follow on from those early more hard coded ways of doing the AI to now fully general learning systems that are trying to achieve the same thing.
Lex Fridman
Yeah, it is been interesting, hilarious, and fun to watch you and Elon obviously itching to create games because you’re both gamers. And one of the sad aspects of your incredible success in so many domains of science, like serious adult stuff, that you might not have time to really create a game, you might end up creating the tooling that others will create the game. You have to watch others create the thing you’ve always dreamed of. Do you think it’s possible you can somehow in your extremely busy schedule actually find time to create something like Black & White, an actual video game where you could make the childhood dream become reality?
Yeah, it is been interesting, hilarious, and fun to watch you and Elon obviously itching to create games because you’re both gamers. And one of the sad aspects of your incredible success in so many domains of science, like serious adult stuff, that you might not have time to really create a game, you might end up creating the tooling that others will create the game. You have to watch others create the thing you’ve always dreamed of. Do you think it’s possible you can somehow in your extremely busy schedule actually find time to create something like Black & White, an actual video game where you could make the childhood dream become reality?
Demis Hassabis
Well, there’s two things where I think about that is maybe with vibe coding as it gets better and there’s a possibility that I could, one could do that actually in your spare time. So I’m quite excited about that as that would be my project if I got the time to do some vibe coding. I’m actually itching to do that. And then the other thing is maybe it’s a sabbatical after AGI has been safely stewarded into the world and delivered into the world. That, and then working on my physics theory as we talked about at the beginning, those would be my two post-AGI projects, let’s call it that way.
Well, there’s two things where I think about that is maybe with vibe coding as it gets better and there’s a possibility that I could, one could do that actually in your spare time. So I’m quite excited about that as that would be my project if I got the time to do some vibe coding. I’m actually itching to do that. And then the other thing is maybe it’s a sabbatical after AGI has been safely stewarded into the world and delivered into the world. That, and then working on my physics theory as we talked about at the beginning, those would be my two post-AGI projects, let’s call it that way.
Lex Fridman
I would love to see which you choose, solving the problem that some of the smartest people in human history contended with, P equals NP, or creating a cool video game.
I would love to see which you choose, solving the problem that some of the smartest people in human history contended with, P equals NP, or creating a cool video game.
Demis Hassabis
But in my world, they’d be related because it would be an open world simulated game as realistic as possible. So what is the universe? That’s speaking to the same question and P equals NP. I think all these things are related, at least in my mind.
But in my world, they’d be related because it would be an open world simulated game as realistic as possible. So what is the universe? That’s speaking to the same question and P equals NP. I think all these things are related, at least in my mind.
Lex Fridman
I mean in a really serious way, video games sometimes are looked down upon as just this fun side activity. But especially as AI does more and more of the difficult, boring tasks, something we in modern world called work, video games is the thing in which we may find meaning, in which we may find what to do with our time. You could create incredibly rich, meaningful experiences. That’s what human life is. And then in video games, you can create more sophisticated, more diverse ways of living. Right? That’s the point?
I mean in a really serious way, video games sometimes are looked down upon as just this fun side activity. But especially as AI does more and more of the difficult, boring tasks, something we in modern world called work, video games is the thing in which we may find meaning, in which we may find what to do with our time. You could create incredibly rich, meaningful experiences. That’s what human life is. And then in video games, you can create more sophisticated, more diverse ways of living. Right? That’s the point?
Demis Hassabis
I think so. I mean, those of us who love games and I still do is it’s almost can let your imagination run wild, right? I used to love games and working on games so much because it’s the fusion, especially in the nineties and early two thousands, the sort of golden era and maybe the eighties of the games industry. And it was all being discovered. New genres were being discovered. We weren’t just making games, we felt we were creating a new entertainment medium that never existed before. Especially with these open world games and simulation games where you, as the player, were co-creating the story. There’s no other media, entertainment media, where you do that, where you as the audience actually co-create the story.
I think so. I mean, those of us who love games and I still do is it’s almost can let your imagination run wild, right? I used to love games and working on games so much because it’s the fusion, especially in the nineties and early two thousands, the sort of golden era and maybe the eighties of the games industry. And it was all being discovered. New genres were being discovered. We weren’t just making games, we felt we were creating a new entertainment medium that never existed before. Especially with these open world games and simulation games where you, as the player, were co-creating the story. There’s no other media, entertainment media, where you do that, where you as the audience actually co-create the story.
And of course now with multiplayer games as well, it can be a very social activity and can explore all kinds of interesting worlds in that. But on the other hand, it’s very important to also enjoy and experience the physical world. But the question is then I think we’re going to have to confront the question again of what is the fundamental nature of reality? What is going to be the difference between these increasingly realistic simulations and multiplayer ones and emergent and what we do in the real world?
Lex Fridman
Yeah, there’s clearly a huge amount of value to experiencing the real world, nature. There’s also a huge amount of value in experiencing other humans directly in person the way we’re sitting here today, but we need to really scientifically rigorously answer the question why and which aspect of that can be mapped into the virtual world.
Yeah, there’s clearly a huge amount of value to experiencing the real world, nature. There’s also a huge amount of value in experiencing other humans directly in person the way we’re sitting here today, but we need to really scientifically rigorously answer the question why and which aspect of that can be mapped into the virtual world.
Demis Hassabis
Exactly.
Exactly.
Lex Fridman
It’s not enough to say, “Yeah, you should go touch grass and hang out in nature.” It’s like why exactly is that valuable?
It’s not enough to say, “Yeah, you should go touch grass and hang out in nature.” It’s like why exactly is that valuable?
Demis Hassabis
Yes. And I guess that’s maybe the thing that’s been haunting me or obsessing me from the beginning of my career. If you think about all the different things I’ve done, they’re all related in that way. The simulation, nature of reality, and what is the bounds of what can be modeled.
Yes. And I guess that’s maybe the thing that’s been haunting me or obsessing me from the beginning of my career. If you think about all the different things I’ve done, they’re all related in that way. The simulation, nature of reality, and what is the bounds of what can be modeled.
Lex Fridman
Sorry for the ridiculous question, but so far, what is the greatest video game of all time? What’s up there?
Sorry for the ridiculous question, but so far, what is the greatest video game of all time? What’s up there?
Demis Hassabis
Well, my favorite one of all time is Civilization, I have to say. That was the Civilization I and Civilization II, my favorite games of all time.
Well, my favorite one of all time is Civilization, I have to say. That was the Civilization I and Civilization II, my favorite games of all time.
Lex Fridman
I can only assume you’ve avoided the most recent one because it would probably, that would be your sabbatical. You would disappear.
I can only assume you’ve avoided the most recent one because it would probably, that would be your sabbatical. You would disappear.
Demis Hassabis
Yes, exactly. They take a lot of time, these Civilization games, so I’ve got to be careful with them.
Yes, exactly. They take a lot of time, these Civilization games, so I’ve got to be careful with them.
Lex Fridman
Fun question. You and Elon seem to be somehow solid gamers. Is there a connection between being great at gaming and being great leaders of AI companies?
Fun question. You and Elon seem to be somehow solid gamers. Is there a connection between being great at gaming and being great leaders of AI companies?
Demis Hassabis
I don’t know. It’s an interesting one. I mean, we both love games and it’s interesting, he wrote games as well to start off with. Probably, especially in the era I grew up in where home computers just became a thing in the late eighties and nineties, especially in the UK, I had a spectrum and then a Commodore Amiga 500, which was my favorite computer ever. And that’s why I learned all my programming. And of course, it’s a very fun thing to program, is to program games. So I think it’s a great way to learn programming, probably still is. And then of course, I immediately took it in directions of AI and simulations, so I was able to express my interest in games and my wider scientific interests all together.
I don’t know. It’s an interesting one. I mean, we both love games and it’s interesting, he wrote games as well to start off with. Probably, especially in the era I grew up in where home computers just became a thing in the late eighties and nineties, especially in the UK, I had a spectrum and then a Commodore Amiga 500, which was my favorite computer ever. And that’s why I learned all my programming. And of course, it’s a very fun thing to program, is to program games. So I think it’s a great way to learn programming, probably still is. And then of course, I immediately took it in directions of AI and simulations, so I was able to express my interest in games and my wider scientific interests all together.
Demis Hassabis
And my sort of wider scientific interests all together. And then the final thing I think that’s great about games is it fuses artistic design, art, with the most cutting edge programming. So again, in the nineties, all of the most interesting technical advances were happening in gaming, whether that was AI, graphics, physics engines, hardware, even GPUs of course were designed for gaming originally. So everything that was pushing computing forward in the nineties was due to gaming. So interestingly, that was where the forefront of research was going on and it was this incredible fusion with art. Graphics, but also music, and just the whole new media of storytelling. And I love that. For me, it’s this sort of multidisciplinary kind of effort is again something I’ve enjoyed my whole life.
And my sort of wider scientific interests all together. And then the final thing I think that’s great about games is it fuses artistic design, art, with the most cutting edge programming. So again, in the nineties, all of the most interesting technical advances were happening in gaming, whether that was AI, graphics, physics engines, hardware, even GPUs of course were designed for gaming originally. So everything that was pushing computing forward in the nineties was due to gaming. So interestingly, that was where the forefront of research was going on and it was this incredible fusion with art. Graphics, but also music, and just the whole new media of storytelling. And I love that. For me, it’s this sort of multidisciplinary kind of effort is again something I’ve enjoyed my whole life.
AlphaEvolve
Lex Fridman
I have to ask you, I almost forgot about one of the many, and I would say one of the most incredible things recently that somehow didn’t yet get enough attention is AlphaEvolve. We talked about Evolution a little bit, but it’s the Google DeepMind system that evolves algorithms. Are these kinds of Evolution-like techniques promising as a component of future super intelligence systems? So for people who don’t know, it’s kind of, I don’t know if it’s fair to say it’s LLM guided Evolution search because Evolution algorithms are doing the search and LLMs are telling you where.
I have to ask you, I almost forgot about one of the many, and I would say one of the most incredible things recently that somehow didn’t yet get enough attention is AlphaEvolve. We talked about Evolution a little bit, but it’s the Google DeepMind system that evolves algorithms. Are these kinds of Evolution-like techniques promising as a component of future super intelligence systems? So for people who don’t know, it’s kind of, I don’t know if it’s fair to say it’s LLM guided Evolution search because Evolution algorithms are doing the search and LLMs are telling you where.
Demis Hassabis
Yes. Yes, exactly. So LLMs are kind of proposing some possible solutions and then you use evolutionary computing on top to find some novel part of the search space. So actually I think it’s an example of very promising directions where you combine LLMs or foundation models with other computational techniques. Evolutionary methods is one, but you could also imagine Monte Carlo tree search. Basically many types of search algorithms or reasoning algorithms sort of on top of or using the foundation models as a basis. So I actually think there’s quite a lot of interesting things to be discovered probably with these sort of hybrid systems, let’s call them.
Yes. Yes, exactly. So LLMs are kind of proposing some possible solutions and then you use evolutionary computing on top to find some novel part of the search space. So actually I think it’s an example of very promising directions where you combine LLMs or foundation models with other computational techniques. Evolutionary methods is one, but you could also imagine Monte Carlo tree search. Basically many types of search algorithms or reasoning algorithms sort of on top of or using the foundation models as a basis. So I actually think there’s quite a lot of interesting things to be discovered probably with these sort of hybrid systems, let’s call them.
Lex Fridman
But not to romanticize Evolution.
But not to romanticize Evolution.
Demis Hassabis
Yeah.
Yeah.
Lex Fridman
I’m only human, but you think there’s some value in whatever that mechanism is? Because we already talked about natural systems. Do you think where there’s a lot of low-hanging fruit of us understanding, being able to model, being able to simulate Evolution and then using that, whatever we understand about that nature-inspired mechanism, to then do search better and better and better?
I’m only human, but you think there’s some value in whatever that mechanism is? Because we already talked about natural systems. Do you think where there’s a lot of low-hanging fruit of us understanding, being able to model, being able to simulate Evolution and then using that, whatever we understand about that nature-inspired mechanism, to then do search better and better and better?
Demis Hassabis
Yes. So if you think about, again, breaking down the solar systems we’ve built to their really fundamental core, you’ve got the model of the underlying dynamics of the system. And then if you want to discover something new, something novel that hasn’t been seen before, then you need some kind of search process on top to take you to a novel of the search space. And you can do that in a number of ways. Evolutionary computing is one. With AlphaGo, we just use Monte Carlo Tree Search and that’s what found move 37, the new never seen before strategy in Go. And so that’s how you can go beyond potentially what is already known. So the model can model everything that you currently know about, all the data that you currently have. But then how do you go beyond that? So that starts to speak about the ideas of creativity.
Yes. So if you think about, again, breaking down the solar systems we’ve built to their really fundamental core, you’ve got the model of the underlying dynamics of the system. And then if you want to discover something new, something novel that hasn’t been seen before, then you need some kind of search process on top to take you to a novel of the search space. And you can do that in a number of ways. Evolutionary computing is one. With AlphaGo, we just use Monte Carlo Tree Search and that’s what found move 37, the new never seen before strategy in Go. And so that’s how you can go beyond potentially what is already known. So the model can model everything that you currently know about, all the data that you currently have. But then how do you go beyond that? So that starts to speak about the ideas of creativity.
How can these systems create something new? In fact discover something new? Obviously this is super relevant for scientific discovery or pushing met science and medicine forward, which we want to do with these systems. And you can actually bolt on some fairly simple search systems on top of these models and get you into a new region of space. Of course, you also have to make sure that you’re not searching that space totally randomly. It would be too big. So you have to have some objective function that you’re trying to optimize and hill climb towards and that guides that search.
Lex Fridman
But there’s some mechanism of Evolution that are interesting maybe in the space of programs. But then the space of programs an extremely important space, because you can probably generalize to everything. But for example, mutation. So it’s not just Monte Carlo Tree Search where it’s like a search. You could every once in a while-
But there’s some mechanism of Evolution that are interesting maybe in the space of programs. But then the space of programs an extremely important space, because you can probably generalize to everything. But for example, mutation. So it’s not just Monte Carlo Tree Search where it’s like a search. You could every once in a while-
Demis Hassabis
Combine things.
Combine things.
Lex Fridman
Combine things?
Combine things?
Demis Hassabis
Yeah.
Yeah.
Lex Fridman
Things, like the components of a thing.
Things, like the components of a thing.
Demis Hassabis
Yes.
Yes.
Lex Fridman
So then what Evolution is really good at is not just the natural selection, it’s combining things and building increasingly complex hierarchical systems. So that component is super interesting, especially with AlphaEvolve and the space of programs.
So then what Evolution is really good at is not just the natural selection, it’s combining things and building increasingly complex hierarchical systems. So that component is super interesting, especially with AlphaEvolve and the space of programs.
Demis Hassabis
Yeah, exactly. So you can get a bit of an extra property out of evolutionary systems, which is some new emerging capability may come about, right? Of course like happened with life, interestingly with naive, traditional evolutionary computing methods without LLMs and the modern AI, the problem with them, they were very well studied in the nineties and early two thousands and some promising results, but the problem was they could never work out how to evolve new properties, new emerging properties. You always had a sort of subset of the properties that you put into the system, but maybe if we combine them with these foundation models, perhaps we can overcome that limitation.
Yeah, exactly. So you can get a bit of an extra property out of evolutionary systems, which is some new emerging capability may come about, right? Of course like happened with life, interestingly with naive, traditional evolutionary computing methods without LLMs and the modern AI, the problem with them, they were very well studied in the nineties and early two thousands and some promising results, but the problem was they could never work out how to evolve new properties, new emerging properties. You always had a sort of subset of the properties that you put into the system, but maybe if we combine them with these foundation models, perhaps we can overcome that limitation.
Obviously naturally evolution clearly did. It did evolve new capabilities. So bacteria to where we are now. So clearly that it must be possible with evolutionary systems to generate new patterns, going back to the first thing we talked about and new capabilities and emerging properties, and maybe we’re on the cusp of discovering how to do that.
Lex Fridman
Yeah, listen, AlphaEvolve is one of the coolest things I’ve ever seen. I’ve on my desk at home, most of my time is spent on that computer is just programming. And next to the three screens is a skull of a Tiktaalik, which is one of the early organisms that crawled out of the water onto land. And I just kind of watch that little guy. It’s like whatever the competition mechanism of Evolution is, it’s quite incredible.
Yeah, listen, AlphaEvolve is one of the coolest things I’ve ever seen. I’ve on my desk at home, most of my time is spent on that computer is just programming. And next to the three screens is a skull of a Tiktaalik, which is one of the early organisms that crawled out of the water onto land. And I just kind of watch that little guy. It’s like whatever the competition mechanism of Evolution is, it’s quite incredible.
Demis Hassabis
Yes.
Yes.
Lex Fridman
It’s truly, truly incredible. Now whether that’s exactly the thing we need to do to do our search, but never dismiss the power of nature, what it did here.
It’s truly, truly incredible. Now whether that’s exactly the thing we need to do to do our search, but never dismiss the power of nature, what it did here.
Demis Hassabis
And it’s amazing, which is a relatively simple algorithm, right? Effectively, and it can generate all of this immense complexity emerges obviously running over 4 billion years of time. But you can think about that as again, a search process that ran over the physics substrate of the universe for a long amount of computational time, but then it generated all this incredible rich diversity.
And it’s amazing, which is a relatively simple algorithm, right? Effectively, and it can generate all of this immense complexity emerges obviously running over 4 billion years of time. But you can think about that as again, a search process that ran over the physics substrate of the universe for a long amount of computational time, but then it generated all this incredible rich diversity.
AI research
Lex Fridman
So many questions I want to ask you. So one, you do have a dream, one of the natural systems you want to try to model is a cell. That’s a beautiful dream. I could ask you about that. I also just for that purpose on the AI scientist front just broadly, so there’s a essay from Daniel Cocotaglio, Scott Alexander and others that online steps along the way to get to ASI and it has a lot of interesting ideas in it, one of which is including a superhuman coder and a superhuman AI researcher. And in that there’s a term of research taste that’s really interesting. So in everything you’ve seen, do you think it’s possible for AI systems to have research taste to help you in the way that AI co-scientist does, to help steer human brilliant scientists and then potentially by itself to figure out what are the directions where you want to generate truly novel ideas? That seems to be a really important component of how to do great science?
So many questions I want to ask you. So one, you do have a dream, one of the natural systems you want to try to model is a cell. That’s a beautiful dream. I could ask you about that. I also just for that purpose on the AI scientist front just broadly, so there’s a essay from Daniel Cocotaglio, Scott Alexander and others that online steps along the way to get to ASI and it has a lot of interesting ideas in it, one of which is including a superhuman coder and a superhuman AI researcher. And in that there’s a term of research taste that’s really interesting. So in everything you’ve seen, do you think it’s possible for AI systems to have research taste to help you in the way that AI co-scientist does, to help steer human brilliant scientists and then potentially by itself to figure out what are the directions where you want to generate truly novel ideas? That seems to be a really important component of how to do great science?
Demis Hassabis
Yeah, I think that’s going to be one of the hardest things to mimic or model is this idea of taste or judgment. I think that’s what separates the great scientists from the good scientists. All professional scientists are good technically, otherwise they wouldn’t have made it that far in academia and things like that. But then do you have the taste to sniff out what the right direction is, what the right experiment is, what the right question is? So picking the right question is the hardest part of science and making the right hypothesis. And that’s what today’s systems definitely they can’t do. So I often say it’s harder to come up with a conjecture, a really good conjecture than it is to solve it. So we may have systems soon that can solve pretty hard conjectures. A maths Olympiad problems, where Alpha Proof last year our system got silver medal in that really hard problems. Maybe eventually we’ll better solve a Millennium Prize kind of problem. But could a system have come up with a conjecture worthy of study that someone like Terence Tao would’ve gone? “You know what, that’s a really deep question about the nature of maths or the nature of numbers or the nature of physics.” And that is far harder type of creativity. And we don’t really know. Today’s systems clearly can’t do that. And we’re not quite sure what that mechanism would be. This kind of leap of imagination like Einstein had when he came up with special relativity and then general relativity with the knowledge he had at the time.
Yeah, I think that’s going to be one of the hardest things to mimic or model is this idea of taste or judgment. I think that’s what separates the great scientists from the good scientists. All professional scientists are good technically, otherwise they wouldn’t have made it that far in academia and things like that. But then do you have the taste to sniff out what the right direction is, what the right experiment is, what the right question is? So picking the right question is the hardest part of science and making the right hypothesis. And that’s what today’s systems definitely they can’t do. So I often say it’s harder to come up with a conjecture, a really good conjecture than it is to solve it. So we may have systems soon that can solve pretty hard conjectures. A maths Olympiad problems, where Alpha Proof last year our system got silver medal in that really hard problems. Maybe eventually we’ll better solve a Millennium Prize kind of problem. But could a system have come up with a conjecture worthy of study that someone like Terence Tao would’ve gone? “You know what, that’s a really deep question about the nature of maths or the nature of numbers or the nature of physics.” And that is far harder type of creativity. And we don’t really know. Today’s systems clearly can’t do that. And we’re not quite sure what that mechanism would be. This kind of leap of imagination like Einstein had when he came up with special relativity and then general relativity with the knowledge he had at the time.
Lex Fridman
For conjecture, you want to come up with a thing that’s interesting, it’s amenable to proof?
For conjecture, you want to come up with a thing that’s interesting, it’s amenable to proof?
Demis Hassabis
Yes.
Yes.
Lex Fridman
So it’s easy to come up with a thing that’s extremely difficult. It’s easy to come up with a thing that’s extremely easy, but at that very edge-
So it’s easy to come up with a thing that’s extremely difficult. It’s easy to come up with a thing that’s extremely easy, but at that very edge-
Demis Hassabis
That sweet spot of basically advancing the science and splitting the hypothesis space into two, ideally. Right? Whether if it’s true or not true, you’ve learned something really useful and that’s hard. And making something that’s also falsifiable and within the technologies that you currently have available. So it’s a very creative process, actually. A highly creative process that I think just a kind of naive search on top of a model won’t be enough for that.
That sweet spot of basically advancing the science and splitting the hypothesis space into two, ideally. Right? Whether if it’s true or not true, you’ve learned something really useful and that’s hard. And making something that’s also falsifiable and within the technologies that you currently have available. So it’s a very creative process, actually. A highly creative process that I think just a kind of naive search on top of a model won’t be enough for that.
Lex Fridman
The idea of splitting the hypothesis space in two is super interesting. So I’ve heard you say that there’s basically no failure or failure is extremely valuable if you construct the questions right, if you construct the experiments right, if you design them right, that failure or success are both useful, so perhaps because it splits the hypothesis basically in two, it’s like a binary search?
The idea of splitting the hypothesis space in two is super interesting. So I’ve heard you say that there’s basically no failure or failure is extremely valuable if you construct the questions right, if you construct the experiments right, if you design them right, that failure or success are both useful, so perhaps because it splits the hypothesis basically in two, it’s like a binary search?
Demis Hassabis
Yes, that’s right. So when you do real Blue Sky research, there’s no such thing as failure really. As long as you are picking experiments and hypotheses that meaningfully split the hypothesis space and you learn something. You can learn something kind of equally valuable from an experiment that doesn’t work. That should tell you if you’ve designed the experiment well and your hypotheses are interesting, it should tell you a lot about where to go next. And then you’re effectively doing a search process and using that information in very helpful ways.
Yes, that’s right. So when you do real Blue Sky research, there’s no such thing as failure really. As long as you are picking experiments and hypotheses that meaningfully split the hypothesis space and you learn something. You can learn something kind of equally valuable from an experiment that doesn’t work. That should tell you if you’ve designed the experiment well and your hypotheses are interesting, it should tell you a lot about where to go next. And then you’re effectively doing a search process and using that information in very helpful ways.
Simulating a biological organism
Lex Fridman
So to go to your dream of modeling a cell, what are the big challenges that lay ahead for us to make that happen? We should maybe highlight that in AlphaFold, I mean there’s just so many leaps. So AlphaFold solved, if it’s fair to say, protein folding. And there’s so many incredible things we could talk about there, including the open sourcing, everything you’ve released AlphaFold 3 is doing protein, RNA, DNA interactions, which is super complicated and fascinating. It’s amenable to modeling. AlphaGenome predicts how small genetic changes if we think about single mutations, how they link to actual function. So it seems like it’s creeping along to sophisticated to much more complicated things like a cell. But a cell has a lot of really complicated components.
So to go to your dream of modeling a cell, what are the big challenges that lay ahead for us to make that happen? We should maybe highlight that in AlphaFold, I mean there’s just so many leaps. So AlphaFold solved, if it’s fair to say, protein folding. And there’s so many incredible things we could talk about there, including the open sourcing, everything you’ve released AlphaFold 3 is doing protein, RNA, DNA interactions, which is super complicated and fascinating. It’s amenable to modeling. AlphaGenome predicts how small genetic changes if we think about single mutations, how they link to actual function. So it seems like it’s creeping along to sophisticated to much more complicated things like a cell. But a cell has a lot of really complicated components.
Demis Hassabis
So what I’ve tried to do throughout my career is I have these really grand dreams and then I try to, as you’ve noticed, but I try to break them down. It’s easy to have a kind of crazily ambitious dream, but the trick is how do you break it down into manageable, achievable, interim steps that are meaningful and useful in their own right? And so Virtual Cell, which is what I call the project of modeling a cell, I’ve had this idea of wanting to do that for maybe more like 25 years.
So what I’ve tried to do throughout my career is I have these really grand dreams and then I try to, as you’ve noticed, but I try to break them down. It’s easy to have a kind of crazily ambitious dream, but the trick is how do you break it down into manageable, achievable, interim steps that are meaningful and useful in their own right? And so Virtual Cell, which is what I call the project of modeling a cell, I’ve had this idea of wanting to do that for maybe more like 25 years.
And I used to talk with Paul Nurse, who is a bit of a mentor of mine in biology. He runs the founded the Crick Institute and won the Nobel Prize in 2001. We’ve been talking about it since the nineties, and I used to come back to it every five years. It’s like, what would you need to model the full internals of a cell so that you could do experiments on the virtual cell and what those experiment in silico and those predictions would be useful for you to save you a lot of time in the wet lab. That would be the dream.
Maybe you could a hundred x speed up experiments by doing most of it in silico the search in silico, and then you do the validation step in the wet lab. That’s the dream. But maybe now, finally, so I was trying to build these components, AlphaFold being one, that would allow you eventually to model the full interaction, a full simulation of a cell, and I’d probably start with a yeast cell. And partly that’s what Paul Nurse studied because the yeast cell is like a full organism, that’s a single cell. So it’s the kind of simplest single cell organism. And so it’s not just a cell, it’s a full organism.
And yeast is very well understood. And so that would be a good candidate for a kind of full simulated model. Now AlphaFold is the solution to the kind of static picture of what does a 3D structure protein look like? A static picture of it. But we know that biology, all the interesting things happen with the dynamics, the interactions, and that’s what AlphaFold 3 is, the first step towards is modeling those interactions. So first of all, pair wise proteins with proteins, proteins with RNA and DNA. But then the next step after that would be modeling maybe a whole pathway, maybe like the tour pathway that’s involved in cancer or something like this. And then eventually you might be able to model a whole cell.
Lex Fridman
Also, there’s another complexity here that stuff in a cell happens at different time scales. Is that tricky? Protein folding is super fast. I don’t know all the biological mechanisms, but some of them take a long time. And so the levels of interaction has a different temporal scale that you have to be able to model.
Also, there’s another complexity here that stuff in a cell happens at different time scales. Is that tricky? Protein folding is super fast. I don’t know all the biological mechanisms, but some of them take a long time. And so the levels of interaction has a different temporal scale that you have to be able to model.
Demis Hassabis
So that would be hard. So you’d probably need several simulated systems that can interact at these different temporal dynamics, or at least maybe it’s like a hierarchical system so you can jump up or down the different temporal stages.
So that would be hard. So you’d probably need several simulated systems that can interact at these different temporal dynamics, or at least maybe it’s like a hierarchical system so you can jump up or down the different temporal stages.
Lex Fridman
So can you avoid… One of the challenges here is not avoid simulating, for example, the quantum mechanical aspects of any of this, right? You want to not over model. You can skip ahead to just model the really high level things that get you a really good estimate of what’s going to happen.
So can you avoid… One of the challenges here is not avoid simulating, for example, the quantum mechanical aspects of any of this, right? You want to not over model. You can skip ahead to just model the really high level things that get you a really good estimate of what’s going to happen.
Demis Hassabis
Yes. So you got to make a decision when you’re modeling any natural system, what is the cutoff level of the granularity that you’re going to model it to? And then it captures the dynamics that you’re interested in. So probably for a cell I would hope that would be the protein level, and that one wouldn’t have to go down to the atomic level. So of course that’s where AlphaFold stock kicks in. So that would be kind of the basis, and then you’d build these higher level simulations that take those as building blocks and then you get the emergent behavior.
Yes. So you got to make a decision when you’re modeling any natural system, what is the cutoff level of the granularity that you’re going to model it to? And then it captures the dynamics that you’re interested in. So probably for a cell I would hope that would be the protein level, and that one wouldn’t have to go down to the atomic level. So of course that’s where AlphaFold stock kicks in. So that would be kind of the basis, and then you’d build these higher level simulations that take those as building blocks and then you get the emergent behavior.
Origin of life
Lex Fridman
I apologize for the pothead questions ahead of time, but do you think we’ll be able to simulate a model, the origin of life? So being able to simulate the first from non-living organisms, the birth of a living organism?
I apologize for the pothead questions ahead of time, but do you think we’ll be able to simulate a model, the origin of life? So being able to simulate the first from non-living organisms, the birth of a living organism?
Demis Hassabis
I think that’s one of course one of the deepest and most fascinating questions. I love that area of biology. There’s people, there’s a great book by Nick Lane, one of the top experts in this area called The Ten Great Inventions of Evolution. I think it’s fantastic. And it also speaks to what the great filters might be, prior or are they ahead of us? I think they’re most likely in the past, if you read that book of how unlikely to go have any life at all. And then single cell to multi-cell seems an unbelievably big jump that took a billion years, I think on earth to do, right? So it shows you how hard it was.
I think that’s one of course one of the deepest and most fascinating questions. I love that area of biology. There’s people, there’s a great book by Nick Lane, one of the top experts in this area called The Ten Great Inventions of Evolution. I think it’s fantastic. And it also speaks to what the great filters might be, prior or are they ahead of us? I think they’re most likely in the past, if you read that book of how unlikely to go have any life at all. And then single cell to multi-cell seems an unbelievably big jump that took a billion years, I think on earth to do, right? So it shows you how hard it was.
Lex Fridman
Right? Bacteria were super happy for a very long time.
Right? Bacteria were super happy for a very long time.
Demis Hassabis
For a very long time before they captured mitochondria somehow, right? I don’t see why not, why AI couldn’t help with that. Some kind of simulation. Again, it’s a bit of a search process through a combinatorial space. Here’s all the chemical soup that you start with, the primordial soup, that maybe was on earth near these hot vents. Here’s some initial conditions. Can you generate something that looks like a cell? So perhaps that would be a next stage after the virtual cell project is well, how could something like that emerge from the chemical soup?
For a very long time before they captured mitochondria somehow, right? I don’t see why not, why AI couldn’t help with that. Some kind of simulation. Again, it’s a bit of a search process through a combinatorial space. Here’s all the chemical soup that you start with, the primordial soup, that maybe was on earth near these hot vents. Here’s some initial conditions. Can you generate something that looks like a cell? So perhaps that would be a next stage after the virtual cell project is well, how could something like that emerge from the chemical soup?
Lex Fridman
Well, I would love it if there was a Move 37 for the origin of life. I think that’s one of the great mysteries. I think ultimately what we’ll figure out is their continuum. There’s no such thing as a line between non-living and living. But if we can make that rigorous.
Well, I would love it if there was a Move 37 for the origin of life. I think that’s one of the great mysteries. I think ultimately what we’ll figure out is their continuum. There’s no such thing as a line between non-living and living. But if we can make that rigorous.
Demis Hassabis
Yes.
Yes.
Lex Fridman
That the very thing from the Big Bang to today has been the same process. If you can break down that wall that we’ve constructed in our minds of the actual origin from non-living to living, and it’s not a line that it’s a continuum that connects physics and chemistry and biology. There’s no line.
That the very thing from the Big Bang to today has been the same process. If you can break down that wall that we’ve constructed in our minds of the actual origin from non-living to living, and it’s not a line that it’s a continuum that connects physics and chemistry and biology. There’s no line.
Demis Hassabis
I mean, this is my whole reason why I worked on AI and AGI my whole life, because I think it can be the ultimate tool to help us answer these kinds of questions. And I don’t really understand why the average person doesn’t worry about this stuff more. How can we not have a good definition of life and not living a non-living and the nature of time and let alone consciousness and gravity and all these things and quantum mechanics weirdness? It’s just to me, I’ve always had this sort of screaming at me in my face and it’s getting louder. It’s like, what is going on here? And I mean that in the deeper sense, the nature of reality, which has to be the ultimate question that would answer all of these things. It’s sort of crazy if you think about it. We can stare at each other and all these living things all the time. We can inspect it microscopes and take it apart almost down to the atomic level. And yet we still can’t answer that clearly in a simple way. That question of how do you define living? It’s kind of amazing.
I mean, this is my whole reason why I worked on AI and AGI my whole life, because I think it can be the ultimate tool to help us answer these kinds of questions. And I don’t really understand why the average person doesn’t worry about this stuff more. How can we not have a good definition of life and not living a non-living and the nature of time and let alone consciousness and gravity and all these things and quantum mechanics weirdness? It’s just to me, I’ve always had this sort of screaming at me in my face and it’s getting louder. It’s like, what is going on here? And I mean that in the deeper sense, the nature of reality, which has to be the ultimate question that would answer all of these things. It’s sort of crazy if you think about it. We can stare at each other and all these living things all the time. We can inspect it microscopes and take it apart almost down to the atomic level. And yet we still can’t answer that clearly in a simple way. That question of how do you define living? It’s kind of amazing.
Lex Fridman
Yeah, living, you can kind of talk your way out of thinking about. But consciousness, we have this very obviously subjective, conscious experience like we’re at the center of our own world and feels like something. And then how are you not screaming at the mystery of it all? I mean, but really humans have been contending with the mystery of the world around them for a long, long… There’s a lot of mysteries like what’s up with the sun and the rain? What’s that about? And then last year we had a lot of rain, and this year we don’t have rain. What did we do wrong? Humans have been asking that question for a long time.
Yeah, living, you can kind of talk your way out of thinking about. But consciousness, we have this very obviously subjective, conscious experience like we’re at the center of our own world and feels like something. And then how are you not screaming at the mystery of it all? I mean, but really humans have been contending with the mystery of the world around them for a long, long… There’s a lot of mysteries like what’s up with the sun and the rain? What’s that about? And then last year we had a lot of rain, and this year we don’t have rain. What did we do wrong? Humans have been asking that question for a long time.
Demis Hassabis
Exactly. So I guess we’ve developed a lot of mechanisms to cope with these deep mysteries that we can’t fully, we can see, but we can’t fully understand and we have to just get on with daily life. And we keep ourselves busy in a way. In a way, did we keep ourselves distracted?
Exactly. So I guess we’ve developed a lot of mechanisms to cope with these deep mysteries that we can’t fully, we can see, but we can’t fully understand and we have to just get on with daily life. And we keep ourselves busy in a way. In a way, did we keep ourselves distracted?
Lex Fridman
I mean, weather is one of the most important questions of human history. We still, that’s the go-to small talk direction of the weather.
I mean, weather is one of the most important questions of human history. We still, that’s the go-to small talk direction of the weather.
Demis Hassabis
Yes. Especially in England.
Yes. Especially in England.
Lex Fridman
And then which is famously is an extremely difficult system to model. And even that system, Google DeepMind has made progress on.
And then which is famously is an extremely difficult system to model. And even that system, Google DeepMind has made progress on.
Demis Hassabis
Yes, we’ve created the best weather prediction systems in the world and they’re better than traditional fluid dynamics sort of systems that usually calculated on massive supercomputers takes days to calculate it. And we’ve managed to model a lot of the weather dynamics with neural network systems, with our WeatherNet system. And again, it’s interesting that those kinds of dynamics can be modeled even though very complicated, almost bordering on chaotic systems in some cases.
Yes, we’ve created the best weather prediction systems in the world and they’re better than traditional fluid dynamics sort of systems that usually calculated on massive supercomputers takes days to calculate it. And we’ve managed to model a lot of the weather dynamics with neural network systems, with our WeatherNet system. And again, it’s interesting that those kinds of dynamics can be modeled even though very complicated, almost bordering on chaotic systems in some cases.
A lot of the interesting aspects of that can be modeled by these neural network systems, including very recently we had cyclone prediction of where paths of hurricanes might go. Of course, super useful, super important for the world and it’s super important to do that very timely and very quickly and as well as accurately. And I think it’s very promising direction again, of simulating so that you can run forward predictions and simulations of very complicated real world systems.
Lex Fridman
I should mention that I’ve gotten a chance in Texas to meet a community of folks called the Storm Chasers. And what’s really incredible about them, I need to talk to them more, is they’re extremely tech-savvy because what they have to do is they have to use models to predict where the storm is. So it’s this beautiful mix of crazy enough to go into the eye of the storm and in order to protect your life and predict where the extreme events are going to be, they have to have increasingly sophisticated models of weather.
I should mention that I’ve gotten a chance in Texas to meet a community of folks called the Storm Chasers. And what’s really incredible about them, I need to talk to them more, is they’re extremely tech-savvy because what they have to do is they have to use models to predict where the storm is. So it’s this beautiful mix of crazy enough to go into the eye of the storm and in order to protect your life and predict where the extreme events are going to be, they have to have increasingly sophisticated models of weather.
Demis Hassabis
Yeah.
Yeah.
Lex Fridman
It is a beautiful balance of being in it as living organisms and the cutting edge of science. They actually might be using DeepMind systems.
It is a beautiful balance of being in it as living organisms and the cutting edge of science. They actually might be using DeepMind systems.
Demis Hassabis
Yeah. But hopefully they are. And I’d love to join them in one of those checks. They look amazing. Right. That’s great to actually experience it one time.
Yeah. But hopefully they are. And I’d love to join them in one of those checks. They look amazing. Right. That’s great to actually experience it one time.
Path to AGI
Lex Fridman
Exactly. And then also to experience the correct prediction where something will come and how it’s going to evolve. It’s incredible. You’ve estimated that we’ll have AGI by 2030, so there’s interesting questions around that. How will we actually know that we got there and what may be the move quote, “Move 37” of AGI.
Exactly. And then also to experience the correct prediction where something will come and how it’s going to evolve. It’s incredible. You’ve estimated that we’ll have AGI by 2030, so there’s interesting questions around that. How will we actually know that we got there and what may be the move quote, “Move 37” of AGI.
Demis Hassabis
My estimate is sort of 50% chance by in the next five years, so by 2030 let’s say. So I think there’s a good chance that that could happen. Part of it is what is your definition of AGI? Of course people arguing about that now and mind’s quite a high bar and always has been of can we match the cognitive functions that the brain has? So we know our brains are pretty much general Turing machines approximate, and of course we created incredible modern civilization with our minds. So that also speaks to how general the brain is.
My estimate is sort of 50% chance by in the next five years, so by 2030 let’s say. So I think there’s a good chance that that could happen. Part of it is what is your definition of AGI? Of course people arguing about that now and mind’s quite a high bar and always has been of can we match the cognitive functions that the brain has? So we know our brains are pretty much general Turing machines approximate, and of course we created incredible modern civilization with our minds. So that also speaks to how general the brain is.
And for us to know we have a true AGI, we would have to make sure that it has all those capabilities. It isn’t kind of a jagged intelligence where some things, it’s really good at, like today’s systems, but other things it’s really flawed at. And that’s what we currently have with today’s systems. They’re not consistent. So you’d want that consistency of intelligence across the board.
And then we have some missing, I think, capabilities like the true invention capabilities and creativity that we were talking about earlier. So you’d want to see those. How you test that? I think you just test it. One way to do it would be kind of brute force test of tens of thousands of cognitive tasks that we know that humans can do. And maybe also make the system available to a few hundred of the world’s top experts, the Terence Taos of each subject area and give them a month or two and see if they can find an obvious flaw in the system. And if they can’t, then I think you can be pretty confident we have a fully general system.
Lex Fridman
Maybe to push back a little bit, it seems like humans are really incredible as the intelligence improves across all domains to take it for granted, like you mentioned, Terence Tao, these brilliant experts. They might quickly in a span of weeks, take for granted all the incredible things it can do and then focus in on, well, aha, right there. I consider myself, first of all, human. I identify as human. Some people listen to me talk and they’re like, “That guy is not good at talking the stuttering.” So even humans have obvious across domains limits, even just outside of calc, mathematics and physics and so on. I wonder if it will take something like a Move 37, so on the positive side versus a barrage of 10,000 cognitive tasks where it’ll be one or two where it’s like, holy shit, this is special.
Maybe to push back a little bit, it seems like humans are really incredible as the intelligence improves across all domains to take it for granted, like you mentioned, Terence Tao, these brilliant experts. They might quickly in a span of weeks, take for granted all the incredible things it can do and then focus in on, well, aha, right there. I consider myself, first of all, human. I identify as human. Some people listen to me talk and they’re like, “That guy is not good at talking the stuttering.” So even humans have obvious across domains limits, even just outside of calc, mathematics and physics and so on. I wonder if it will take something like a Move 37, so on the positive side versus a barrage of 10,000 cognitive tasks where it’ll be one or two where it’s like, holy shit, this is special.
Demis Hassabis
So I think that. Exactly. So I think there’s the sort of blanket testing to just make sure you’ve got the consistency. But I think there are the sort of lighthouse moments like the Move 37 that I would be looking for. So one would be inventing a new conjecture or a new hypothesis about physics like Einstein did.
So I think that. Exactly. So I think there’s the sort of blanket testing to just make sure you’ve got the consistency. But I think there are the sort of lighthouse moments like the Move 37 that I would be looking for. So one would be inventing a new conjecture or a new hypothesis about physics like Einstein did.
So maybe you could even run the back test of that very rigorously, have a cut-off of 1900 and then give the system everything that was written up to 1900 and then see if it could come up with special relativity and general relativity, right? Like Einstein did. That would be an interesting test. Another one would be can it invent a game like Go? Go not just come up with Move 37, a new strategy, but can it invent a game that’s as deep as aesthetically beautiful, as elegant as Go? And those are the sorts of things I would be looking out for. And probably a system being able to do several of those things for it to be very general, not just one domain. And so I think that would be the signs at least that I would be looking for, that we’ve got a system that’s AGI level and then maybe to fill that out, you would also check their consistency, make sure there’s no holes in that system either.
Lex Fridman
Yeah, something like a new conjecture or scientific discovery. That would be a cool feeling.
Yeah, something like a new conjecture or scientific discovery. That would be a cool feeling.
Demis Hassabis
Yeah, that would be amazing. So it’s not just helping us do that, but actually coming up with something brand new.
Yeah, that would be amazing. So it’s not just helping us do that, but actually coming up with something brand new.
Lex Fridman
And you would be in the room for that.
And you would be in the room for that.
Demis Hassabis
Absolutely.
Absolutely.
Lex Fridman
It would be probably two or three months before announcing it. And you would just be sitting there trying not to Tweet.
It would be probably two or three months before announcing it. And you would just be sitting there trying not to Tweet.
Demis Hassabis
Something like that. Exactly. It’s like what is this amazing new physics idea? And then we would probably check it with world experts in that domain and validate it and go through its workings. And I guess it would be explaining its workings too. Yeah. It would be an amazing moment.
Something like that. Exactly. It’s like what is this amazing new physics idea? And then we would probably check it with world experts in that domain and validate it and go through its workings. And I guess it would be explaining its workings too. Yeah. It would be an amazing moment.
Lex Fridman
Do you worry that we as humans, even expert humans, like you might miss it? Might miss-
Do you worry that we as humans, even expert humans, like you might miss it? Might miss-
Demis Hassabis
Well, it may be pretty complicated. So it could be, the analogy I give there is I don’t think it will be totally mysterious to the best human scientists, but it may be a bit like, for example in chess, if I was to talk to Garry Kasparov for Magnus Carlsen and play a game with them and they make a brilliant move, I might not be able to come up with that move. But they could explain why afterwards that move made sense. And we would be to understand it to some degree, not to the level they do, but if they were good at explaining, which is actually part of intelligence too, is being able to explain in a simple way that what you’re thinking about, I think that that will be very possible for the best human scientists.
Well, it may be pretty complicated. So it could be, the analogy I give there is I don’t think it will be totally mysterious to the best human scientists, but it may be a bit like, for example in chess, if I was to talk to Garry Kasparov for Magnus Carlsen and play a game with them and they make a brilliant move, I might not be able to come up with that move. But they could explain why afterwards that move made sense. And we would be to understand it to some degree, not to the level they do, but if they were good at explaining, which is actually part of intelligence too, is being able to explain in a simple way that what you’re thinking about, I think that that will be very possible for the best human scientists.
Lex Fridman
But I wonder, maybe you can educate me on the side of Go, I wonder if there’s moves from Magnus or Garry where they at first will dismiss it as a bad move?
But I wonder, maybe you can educate me on the side of Go, I wonder if there’s moves from Magnus or Garry where they at first will dismiss it as a bad move?
Demis Hassabis
Yeah, sure, it could be. But then afterwards they’ll figure out with their intuition why this works. And then empirically, the nice thing about games is, one of the great things about games is it’s a sort of scientific test. Do you win the game or not win? And then that tells you, okay, that move in the end was good, that strategy was good. And then you can go back and analyze that and explain even to yourself a little bit more why. Explore around it, and that’s how chess analysis and things like that works. So perhaps that’s why my brain works like that because I’ve been doing that since I was four and it’s sort of hardcore training in that way.
Yeah, sure, it could be. But then afterwards they’ll figure out with their intuition why this works. And then empirically, the nice thing about games is, one of the great things about games is it’s a sort of scientific test. Do you win the game or not win? And then that tells you, okay, that move in the end was good, that strategy was good. And then you can go back and analyze that and explain even to yourself a little bit more why. Explore around it, and that’s how chess analysis and things like that works. So perhaps that’s why my brain works like that because I’ve been doing that since I was four and it’s sort of hardcore training in that way.
Lex Fridman
But even now when I generate code, there is this kind of nuanced, fascinating contention that’s happening where I might at first identify as a set of generated code is incorrect in some interesting nuanced ways. But then I always have to ask the question, is there a deeper insight here that I’m the one who’s incorrect? And that’s going to, as the systems get more and more intelligent, you’re going to have to contend with that. It’s like, is this a bug or a feature, what you just came up with?
But even now when I generate code, there is this kind of nuanced, fascinating contention that’s happening where I might at first identify as a set of generated code is incorrect in some interesting nuanced ways. But then I always have to ask the question, is there a deeper insight here that I’m the one who’s incorrect? And that’s going to, as the systems get more and more intelligent, you’re going to have to contend with that. It’s like, is this a bug or a feature, what you just came up with?
Demis Hassabis
Yeah. And they’re going to be pretty complicated to do, but of course it will be, you can imagine also AI systems that are producing that code or whatever that is, and then human programmers looking at it, but also not unaided with the help of AI tools as well. So it’s going to be kind of an interesting, maybe different AI tools to the ones the monitoring tools are the ones that generated it.
Yeah. And they’re going to be pretty complicated to do, but of course it will be, you can imagine also AI systems that are producing that code or whatever that is, and then human programmers looking at it, but also not unaided with the help of AI tools as well. So it’s going to be kind of an interesting, maybe different AI tools to the ones the monitoring tools are the ones that generated it.
Lex Fridman
So if we look at that AGI system, sorry to bring it back up, but AlphaEvolve, it’s super cool. So AlphaEvolve enables on the programming side, something like recursive self-improvement potentially. If you can imagine what that AGI system, maybe not the first version, but a few versions beyond that, what does that actually look like? Do you think it’ll be simple? Do you think it’ll be something like a self-improving-
So if we look at that AGI system, sorry to bring it back up, but AlphaEvolve, it’s super cool. So AlphaEvolve enables on the programming side, something like recursive self-improvement potentially. If you can imagine what that AGI system, maybe not the first version, but a few versions beyond that, what does that actually look like? Do you think it’ll be simple? Do you think it’ll be something like a self-improving-
Lex Fridman
Like, do you think it’ll be simple? Do you think it’ll be something like a self-improving program and a simple one?
Like, do you think it’ll be simple? Do you think it’ll be something like a self-improving program and a simple one?
Demis Hassabis
I mean potentially that’s possible. I would say I’m not sure it’s even desirable because that’s a kind of hard takeoff scenario. But these current systems like Alpha Evolve, they have human in the loop deciding on various things, there’re separate hybrid systems that interact.
I mean potentially that’s possible. I would say I’m not sure it’s even desirable because that’s a kind of hard takeoff scenario. But these current systems like Alpha Evolve, they have human in the loop deciding on various things, there’re separate hybrid systems that interact.
One could imagine eventually doing that end to end. I don’t see why that wouldn’t be possible, but right now I think the systems are not good enough to do that in terms of coming up with the architecture of the code. And again, it’s a little bit reconnected to this idea of coming up with a new conjectural hypothesis, how they’re good if you give them very specific instructions about what you’re trying to do, but if you give them a very vague high level instruction, that wouldn’t work currently. And I think that’s related to this idea of invent a game as good as Go, right?
Imagine that was the prompt. That’s pretty. And so the current systems wouldn’t know I think what to do with that, how to narrow that down to something tractable. And I think there’s similar, look, just make a better version of yourself. That’s too unconstrained. But we’ve done it. And as you know with AlphaVol, like things like faster matrix multiplication, so when you hone it down to very specific thing you want, it’s very good at incrementally improving that.
But at the moment these are more incremental improvements, sort of small iterations. Whereas if you wanted a big leap in understanding, you’d need a much larger advance.
Lex Fridman
Yeah. But it could also be sort of the pushback against hard takeoff scenario. It could be just a sequence of incremental improvements, like matrix multiplication. It has to sit there for days thinking how to incrementally improve a thing and it does solve recursively. And as you do more and more improvement, it’ll slow down.
Yeah. But it could also be sort of the pushback against hard takeoff scenario. It could be just a sequence of incremental improvements, like matrix multiplication. It has to sit there for days thinking how to incrementally improve a thing and it does solve recursively. And as you do more and more improvement, it’ll slow down.
So there be, the path to AGI won’t be like a gradual improvement over time.
Demis Hassabis
Yes. If it was just incremental improvements, that’s how it would look. So the question is, could it come up with a new leap like the Transformers architecture? Could it have done that back in 2017 when we did it and Brain did it? And it’s not clear that these systems, something our AlphaVol wouldn’t be able to do, make such a big leap. So for sure these systems are good. We have systems I think that can do incremental hill climbing, and that’s a kind of bigger question about is that all that’s needed from here, or do we actually need one or two more big breakthroughs.
Yes. If it was just incremental improvements, that’s how it would look. So the question is, could it come up with a new leap like the Transformers architecture? Could it have done that back in 2017 when we did it and Brain did it? And it’s not clear that these systems, something our AlphaVol wouldn’t be able to do, make such a big leap. So for sure these systems are good. We have systems I think that can do incremental hill climbing, and that’s a kind of bigger question about is that all that’s needed from here, or do we actually need one or two more big breakthroughs.
Lex Fridman
And can the same kind of systems provide the breakthroughs also? So make it a bunch of S-curves like incremental improvement, but also every once in a while, leaps.
And can the same kind of systems provide the breakthroughs also? So make it a bunch of S-curves like incremental improvement, but also every once in a while, leaps.
Demis Hassabis
Yeah, I don’t think anyone has systems that can have shown, unequivocally those big leaps that we have a lot of systems that do the hill climbing of the S-curve that you’re currently on.
Yeah, I don’t think anyone has systems that can have shown, unequivocally those big leaps that we have a lot of systems that do the hill climbing of the S-curve that you’re currently on.
Lex Fridman
And that would be the move 37 is a leap.
And that would be the move 37 is a leap.
Demis Hassabis
Yeah, I think it would be a leap, something like that.
Yeah, I think it would be a leap, something like that.
Scaling laws
Lex Fridman
Do you think the scaling laws are holding strong on the pre-training/post-training test time compute? Do you on the flip side of that, anticipate AI progress hitting a wall?
Do you think the scaling laws are holding strong on the pre-training/post-training test time compute? Do you on the flip side of that, anticipate AI progress hitting a wall?
Demis Hassabis
We certainly feel there’s a lot more room just in the scaling. So actually all steps pre-training, post-training, and inference time. So there’s sort of three scalings that are happening concurrently. And again there, it’s about how innovative you can be and we pride ourselves on having the broadest and deepest research bench. We have amazing, incredible researchers and people like Noam Shazir who came up with Transformers and Dave Silver who led the AlphaGo project and so on.
We certainly feel there’s a lot more room just in the scaling. So actually all steps pre-training, post-training, and inference time. So there’s sort of three scalings that are happening concurrently. And again there, it’s about how innovative you can be and we pride ourselves on having the broadest and deepest research bench. We have amazing, incredible researchers and people like Noam Shazir who came up with Transformers and Dave Silver who led the AlphaGo project and so on.
And that research base means that if some new breakthrough is required, like an AlphaGo or Transformers, I would back us to be the place that does that. So I’m actually quite like it when the terrain gets harder, right? Because then it veers more from just engineering to true research, and research plus engineering, and that’s our sweet spot and I think that’s harder. It’s harder to invent things than to fast follow.
And so we don’t know, I would say it’s kind of 50/50 whether new things are needed or whether the scaling the existing stuff is going to be enough. And so, in true kind of empirical fashion, we are pushing both of those as hard as possible. The new blue sky, ideas and maybe about half our resources are on that. And then scaling to the max, the current capabilities. And we’re still seeing some fantastic progress on each different version of Gemini.
Lex Fridman
That’s interesting the way you put it in terms of the deep bench, that if progress towards AGI is more than just scaling compute, so the engineering side of the problem, and is more on the scientific side where there’s breakthroughs needed, then you feel confident DeepMind as well, Google DeepMind as well positioned to kick ass in that domain.
That’s interesting the way you put it in terms of the deep bench, that if progress towards AGI is more than just scaling compute, so the engineering side of the problem, and is more on the scientific side where there’s breakthroughs needed, then you feel confident DeepMind as well, Google DeepMind as well positioned to kick ass in that domain.
Demis Hassabis
Well, I mean if you look at the history of the last decade or 15 years, it’s been maybe, I don’t know, 80-90% of the breakthroughs that underpins modern AI field today was from originally Google Brain, Google Research and DeepMind. So yeah, I would back that to continue hopefully.
Well, I mean if you look at the history of the last decade or 15 years, it’s been maybe, I don’t know, 80-90% of the breakthroughs that underpins modern AI field today was from originally Google Brain, Google Research and DeepMind. So yeah, I would back that to continue hopefully.
Lex Fridman
So on the data side, are you concerned about running out of high quality data, especially high quality human data?
So on the data side, are you concerned about running out of high quality data, especially high quality human data?
Demis Hassabis
I’m not very worried about that. Partly because I think there’s enough data, and it’s been proven to get the systems to be pretty good. And this goes back to simulations again. Do you have enough data to make simulations, so that you can create more synthetic data that are from the right distribution? Obviously that’s the key. So you need enough real-world data in order to be able to create those kinds of data generators, and I think that we’re at that step at the moment.
I’m not very worried about that. Partly because I think there’s enough data, and it’s been proven to get the systems to be pretty good. And this goes back to simulations again. Do you have enough data to make simulations, so that you can create more synthetic data that are from the right distribution? Obviously that’s the key. So you need enough real-world data in order to be able to create those kinds of data generators, and I think that we’re at that step at the moment.
Lex Fridman
Yeah, you’ve done a lot of incredible stuff on the side of science and biology, doing a lot with not so much data.
Yeah, you’ve done a lot of incredible stuff on the side of science and biology, doing a lot with not so much data.
Demis Hassabis
Yeah.
Yeah.
Lex Fridman
I mean it’s still a lot of data, but I guess enough to-
I mean it’s still a lot of data, but I guess enough to-
Demis Hassabis
To get that going. Exactly. Exactly
To get that going. Exactly. Exactly
Compute
Lex Fridman
Yeah. How crucial is the scaling of compute to building AGI? That’s an engineering question. It’s almost a geopolitical question because it also integrated into that is supply chains and energy. A thing that you care a lot about, which is potentially fusion. So innovating on the side of energy also. Do you think we’re going to keep scaling compute?
Yeah. How crucial is the scaling of compute to building AGI? That’s an engineering question. It’s almost a geopolitical question because it also integrated into that is supply chains and energy. A thing that you care a lot about, which is potentially fusion. So innovating on the side of energy also. Do you think we’re going to keep scaling compute?
Demis Hassabis
I think so, for several reasons. I think compute, there’s the amount of compute you have for training, often it needs to be co-located, so actually even bandwidth constraints between data centers can affect that. So there’s additional constraints even there and that’s important for training, obviously the largest models you can, but there’s also because now AI systems are in products and being used by billions of people around the world, you need a ton of inference compute now.
I think so, for several reasons. I think compute, there’s the amount of compute you have for training, often it needs to be co-located, so actually even bandwidth constraints between data centers can affect that. So there’s additional constraints even there and that’s important for training, obviously the largest models you can, but there’s also because now AI systems are in products and being used by billions of people around the world, you need a ton of inference compute now.
And then on top of that there’s the thinking systems, the new paradigm of the last year that where they get smarter, the longer amount of inference time you give them at test time. So all of those things need a lot of compute and I don’t really see that slowing down, and as AI systems become better, they’ll become more useful and there’ll be more demand for them. So both from the training side, the training side actually is only just one part of that. It may even become the smaller part of what’s needed in the overall compute that’s required.
Lex Fridman
Yeah, that’s one sort of almost meme-y kind of thing, which is the success in the incredible aspects of VL3. People kind of make fun of the more successful it becomes, the servers are sweating.
Yeah, that’s one sort of almost meme-y kind of thing, which is the success in the incredible aspects of VL3. People kind of make fun of the more successful it becomes, the servers are sweating.
Demis Hassabis
Yes.
Yes.
Lex Fridman
The inference.
The inference.
Demis Hassabis
Yeah, yeah, exactly. We did a little video of the servers frying eggs and things. That’s right. And we are going to have to figure out how to do that. There’s a lot of interesting hardware innovations that we do as we have our own TPU line and we’re looking at inference-only things, inference-only chips and how we can make those more efficient.
Yeah, yeah, exactly. We did a little video of the servers frying eggs and things. That’s right. And we are going to have to figure out how to do that. There’s a lot of interesting hardware innovations that we do as we have our own TPU line and we’re looking at inference-only things, inference-only chips and how we can make those more efficient.
We’re also very interested in building AI systems and we have done the help with energy usage, so help data center energy like for the cooling systems be efficient, grid optimization, and then eventually things like helping with plasma-containment fusion reactors. We’ve done lots of work on that with Commonwealth Fusion, and also one could imagine reactor design.
And then material design I think is one of the most exciting. New types of solar material, solar panel material room temperature superconductors has always been on my list of dream breakthroughs, and optimal batteries. And I think a solution to any one of those things would be absolutely revolutionary for climate and energy usage. And we’re probably close, and again in the next five years to having AI systems that can materially help with those problems.
Future of energy
Lex Fridman
If you were to bet, sorry for the ridiculous question, but what is the main source of energy in 20, 30, 40 years. Do you think it’s going to be nuclear fusion?
If you were to bet, sorry for the ridiculous question, but what is the main source of energy in 20, 30, 40 years. Do you think it’s going to be nuclear fusion?
Demis Hassabis
I think fusion and solar are the two that I would bet on. Solar, I mean it’s the fusion reactor in the sky of course, and I think really the problem there is batteries and transmission. So as well as more efficient, more and more efficient solar material perhaps eventually in space, these kind of Dyson Sphere type ideas.
I think fusion and solar are the two that I would bet on. Solar, I mean it’s the fusion reactor in the sky of course, and I think really the problem there is batteries and transmission. So as well as more efficient, more and more efficient solar material perhaps eventually in space, these kind of Dyson Sphere type ideas.
And fusion I think is definitely doable, it seems, if we have the right design of reactor and we can control the plasma and fast enough and so on, and I think both of those things will actually get solved. So we’ll probably have at least those are probably the two primary sources of renewable, clean, almost free or perhaps free energy.
Lex Fridman
What a time to be alive. If I traveled into the future with you a hundred years from now, how much would you be surprised if we’ve passed a type one Kardashev scale civilization?
What a time to be alive. If I traveled into the future with you a hundred years from now, how much would you be surprised if we’ve passed a type one Kardashev scale civilization?
Demis Hassabis
I would not be that surprised if it was a hundred-year timescale from here. I mean I think it’s pretty clear if we crack the energy problems in one of the ways we’ve just discussed or very efficient solar, then if energy is kind of free and renewable and clean, then that solves a whole bunch of other problems.
I would not be that surprised if it was a hundred-year timescale from here. I mean I think it’s pretty clear if we crack the energy problems in one of the ways we’ve just discussed or very efficient solar, then if energy is kind of free and renewable and clean, then that solves a whole bunch of other problems.
So for example, the water access problem goes away because you can just use desalination. We have the technology, it’s just too expensive. So only fairly wealthy countries like Singapore and Israel and so on actually use it. But if it was cheap, then all countries that have a coast could, but also you’d have unlimited rocket fuel. You could just separate seawater out into hydrogen and oxygen using energy and that’s rocket fuel.
So combined with Elon’s, amazing self landing rockets, then it could be you sort of like a bus service to space. So that opens up incredible new resources and domains. Asteroid mining I think will become a thing, and maximum human flourishing to the stars. That’s what I dream about as well is like Carl Sagan’s sort of idea of bringing consciousness to the universe, waking up the universe. And I think human civilization will do that in the full sense of time if we get AI right, and crack some of these problems with it.
Lex Fridman
Yeah, I wonder what it would look like if you’re just a tourist flying through space. You would probably notice earth because if you solve the energy problem, you would see a lot of space rockets probably. So it would be traffic here in London, but in space.
Yeah, I wonder what it would look like if you’re just a tourist flying through space. You would probably notice earth because if you solve the energy problem, you would see a lot of space rockets probably. So it would be traffic here in London, but in space.
Demis Hassabis
Yes, exactly.
Yes, exactly.
Lex Fridman
It’s just a lot of rockets. And then you would probably see floating in space, some kind of source of energy like solar potentially. So earth would just look more on the surface, more technological. And then you would use the power of that energy then to preserve the natural…
It’s just a lot of rockets. And then you would probably see floating in space, some kind of source of energy like solar potentially. So earth would just look more on the surface, more technological. And then you would use the power of that energy then to preserve the natural…
Demis Hassabis
Yes.
Yes.
Lex Fridman
Like the rainforest and all that kind of stuff.
Like the rainforest and all that kind of stuff.
Demis Hassabis
Exactly. Because for the first time in human history we wouldn’t be resource constrained. And I think that could be amazing new era for humanity where it’s not zero-sum, right? I have this land, you don’t have it. Or if the tigers have their forest, then the local villages can’t, what are they going to use? I think that this will help a lot. No, it won’t solve all problems because there’s still other human foibles that will still exist, but it will at least remove one, I think one of the big vectors, which is scarcity of resources, including land and more materials and energy.
Exactly. Because for the first time in human history we wouldn’t be resource constrained. And I think that could be amazing new era for humanity where it’s not zero-sum, right? I have this land, you don’t have it. Or if the tigers have their forest, then the local villages can’t, what are they going to use? I think that this will help a lot. No, it won’t solve all problems because there’s still other human foibles that will still exist, but it will at least remove one, I think one of the big vectors, which is scarcity of resources, including land and more materials and energy.
And we should be sometimes call it another call about this kind of radical abundance era, where there’s plenty of resources to go around. Of course the next big question is making sure that that’s fairly, shared fairly and everyone in society benefits from that.
Human nature
Lex Fridman
So there is something about human nature where I go, its like Borat, like my neighbor. You start trouble. We do start conflicts and that’s why games throughout, as I’m learning actually more and more, even in ancient history, serve the purpose of pushing people away from war, actually hot war. So maybe we can figure out increasingly sophisticated video games that pull us, they give us that… Scratch the itch of conflict, whatever that is, but us, the human nature.
So there is something about human nature where I go, its like Borat, like my neighbor. You start trouble. We do start conflicts and that’s why games throughout, as I’m learning actually more and more, even in ancient history, serve the purpose of pushing people away from war, actually hot war. So maybe we can figure out increasingly sophisticated video games that pull us, they give us that… Scratch the itch of conflict, whatever that is, but us, the human nature.
Demis Hassabis
Like… Yeah.
Like… Yeah.
Lex Fridman
And then avoid the actual hot wars that would come with increasingly sophisticated technologies because we’re now, we’ve long passed the stage where the weapons we’re able to create can actually just destroy all of human civilization. So that’s no longer a great way to start with your neighbor. It’s better to play a game of chess.
And then avoid the actual hot wars that would come with increasingly sophisticated technologies because we’re now, we’ve long passed the stage where the weapons we’re able to create can actually just destroy all of human civilization. So that’s no longer a great way to start with your neighbor. It’s better to play a game of chess.
Demis Hassabis
Or football.
Or football.
Lex Fridman
Or football. Yeah.
Or football. Yeah.
Demis Hassabis
And I think that’s what my modern sport is and I love football watching it and I just feel like, and I used to play it a lot as well, and it’s very visceral in its tribal, and I think it does channel a lot of those energies into which I think is a kind of human need to belong to some group, but into a fun way, a healthy way and not destructive way, kind of constructive thing.
And I think that’s what my modern sport is and I love football watching it and I just feel like, and I used to play it a lot as well, and it’s very visceral in its tribal, and I think it does channel a lot of those energies into which I think is a kind of human need to belong to some group, but into a fun way, a healthy way and not destructive way, kind of constructive thing.
And I think going back to games again is I think they’re originally why they’re so great as well for kids to play things like chess is they’re great little microcosm simulations of the world. They’re simulations of the world too. They’re simplified versions of some real world situation, whether it’s poker or Go or chess, different aspects or diplomacy, different of the real world.
And it allows you to practice at them too, because how many times do you get to practice a massive decision moment in your life? What job to take, what university to go to? You get maybe, I don’t know, a dozen or so key decisions one has to make and you’ve got to make those as best as you can. And games is a kind of safe environment, repeatable environment where you can get better at your decision-making process, and it maybe has this additional benefit of channeling some energies into more creative and constructive pursuits.
Lex Fridman
Well I think it’s also really important to practice losing and winning.
Well I think it’s also really important to practice losing and winning.
Demis Hassabis
Right.
Right.
Lex Fridman
Losing is a really, that’s why I love games. That’s why I love even things like Brazilian Jiu-Jitsu where you can get your kicked in a safe environment over and over. It reminds you about physics, about the way the world works about sometimes you lose, sometimes you win, you can still be friends with everybody. But that feeling of losing, I mean it’s a weird one for us humans to really make sense of. That’s just part of life. That is a fundamental part of life is losing.
Losing is a really, that’s why I love games. That’s why I love even things like Brazilian Jiu-Jitsu where you can get your kicked in a safe environment over and over. It reminds you about physics, about the way the world works about sometimes you lose, sometimes you win, you can still be friends with everybody. But that feeling of losing, I mean it’s a weird one for us humans to really make sense of. That’s just part of life. That is a fundamental part of life is losing.
Demis Hassabis
And I think the martial arts as I understand it, but also in things like light chess is at least the way I took it’s a lot to do with self-improvement, self-knowledge. That, okay, so I did this thing. It’s not about really beating the other person, it’s about maximizing your own potential.
And I think the martial arts as I understand it, but also in things like light chess is at least the way I took it’s a lot to do with self-improvement, self-knowledge. That, okay, so I did this thing. It’s not about really beating the other person, it’s about maximizing your own potential.
If you do it in a healthy way, you learn to use victory and losses in a way. Don’t get carried away with victory and think you’re just the best in the world. And the losses keep you humble, and always knowing there’s always something more to learn. There’s always a bigger expert that you can mentor you. I think you learn that I’m pretty sure in martial arts.
And I think that’s also the way that at least I was trained in chess. And so, in the same way, and it can be very hardcore and very important and of course you want to win, but you also need to learn how to deal with setbacks in a healthy way, and wire that feeling that you have when you lose something into a constructive thing of, next time I’m going to improve this or get better at this.
Lex Fridman
There is something that’s a source of happiness, a source of meaning that improvements that… It’s not about the winning or losing.
There is something that’s a source of happiness, a source of meaning that improvements that… It’s not about the winning or losing.
Demis Hassabis
Yes, the mastery. There’s nothing more satisfying in a way. It’s like, oh wow, this thing I couldn’t do before. Now I can. And again, games and physical sports and mental sports, their ways of measuring their beautiful, because you can measure that progress.
Yes, the mastery. There’s nothing more satisfying in a way. It’s like, oh wow, this thing I couldn’t do before. Now I can. And again, games and physical sports and mental sports, their ways of measuring their beautiful, because you can measure that progress.
Lex Fridman
Yeah, there’s something about I guess why I love role-playing games, like the number go up of on the skill tree, literally that is a source of meaning for us humans, whatever our-
Yeah, there’s something about I guess why I love role-playing games, like the number go up of on the skill tree, literally that is a source of meaning for us humans, whatever our-
Demis Hassabis
Yeah, we’re quite addicted to this sort of, these numbers going up. And maybe that’s why we made games like that because obviously that is something we’re hill climbing systems ourselves, right?
Yeah, we’re quite addicted to this sort of, these numbers going up. And maybe that’s why we made games like that because obviously that is something we’re hill climbing systems ourselves, right?
Lex Fridman
Yeah. It would be quite sad if we didn’t have any mechanism-
Yeah. It would be quite sad if we didn’t have any mechanism-
Demis Hassabis
Color belts, we do this everywhere, where we just have thing that…
Color belts, we do this everywhere, where we just have thing that…
Lex Fridman
And I don’t want to dismiss that. There is a source of deep meaning across humans.
And I don’t want to dismiss that. There is a source of deep meaning across humans.
Google and the race to AGI
So one of the incredible stories on the business, on the leadership side is what Google has done over the past year. So I think it’s fair to say that Google was losing on the LLM product side a year ago with Gemini 1.5 And now it’s winning, which… I’m Joe Biden. And you took the helm and you led this effort. What did it take to go from let’s say quote-unquote losing to quote-unquote winning, in the span of a year?
Demis Hassabis
Yeah, well firstly it’s absolutely incredible team that we have led by Corey and Jeff Dean and Oriole and the amazing team we have on Gemini. Absolutely. So you can’t do it without the best talent. And of course we have a lot of great compute as well. But then it’s the research culture we’ve created and basically coming together both different groups in Google that was Google Brain, World-class team, and then the old DeepMind, and pulling together all the best people and the best ideas and gathering around to make the absolute greater system we could.
Yeah, well firstly it’s absolutely incredible team that we have led by Corey and Jeff Dean and Oriole and the amazing team we have on Gemini. Absolutely. So you can’t do it without the best talent. And of course we have a lot of great compute as well. But then it’s the research culture we’ve created and basically coming together both different groups in Google that was Google Brain, World-class team, and then the old DeepMind, and pulling together all the best people and the best ideas and gathering around to make the absolute greater system we could.
And it was been hard, but we’re all very competitive and we love research. This is so fun to do, and it’s great to see our trajectory. It wasn’t a given, but we’re very pleased with where we are and the rate of progress is the most important thing. So if you look at where we’ve come to from two years ago to one year ago to now, I think we call it relentless progress. Along with relentless shipping of that progress is being very successful and it’s unbelievably competitive, the whole space, the whole AI space, with some of the greatest entrepreneurs and leaders and companies in the world, all competing now because everyone’s realized how important AI is. And it’s very been pleasing for us to see that progress.
Lex Fridman
Google’s a gigantic company. Can you speak to the natural things that happen in that case is the bureaucracy that emerges? You want to be careful the natural, there’s meetings and there’s managers and that. What are some of the challenges from a leadership perspective, breaking through that in order to, like you said, ship? Like the number of products, Gemini related products that has been shipped over the past years is insane.
Google’s a gigantic company. Can you speak to the natural things that happen in that case is the bureaucracy that emerges? You want to be careful the natural, there’s meetings and there’s managers and that. What are some of the challenges from a leadership perspective, breaking through that in order to, like you said, ship? Like the number of products, Gemini related products that has been shipped over the past years is insane.
Demis Hassabis
Right? Yeah, exactly. That’s what relentlessness looks like. I think it’s a question of any big company ends up having a lot of layers of management and things like that is sort of the nature of how it works. But I still operate and I was always operating with old DeepMind as a start-up still. A large one, but still as a start-up.
Right? Yeah, exactly. That’s what relentlessness looks like. I think it’s a question of any big company ends up having a lot of layers of management and things like that is sort of the nature of how it works. But I still operate and I was always operating with old DeepMind as a start-up still. A large one, but still as a start-up.
And that’s what we still act like today with Google DeepMind. And acting with decisiveness and the energy that you get from the best smaller organizations. And we try to get the best of both worlds where we have this incredible, billions of users surfaces and credible products that we can power up with our AI and our research and that’s amazing and that’s very few places in the world you can get that, do incredible world-class research on the one hand and then plug it in and improve billions of people’s lives the next day. That’s a pretty amazing combination.
And we’re continually fighting and cutting away bureaucracy to allow the research culture and the relentless shipping culture to flourish. And I think we’ve got a pretty good balance, whilst being responsible with it, as you have to be as a large company and also with a number of huge product surfaces that we have.
Lex Fridman
So a funny thing you mentioned about the surface with the billion, I had a conversation with a guy named, brilliant guy here at the British Museum, called Irvin Finkel. He’s a world expert at cuneiforms, which is a ancient writing on tablets and he doesn’t know about ChatGPT or Gemini, he doesn’t even know about AI, but this first encounter with this AI is AI mode on Google.
So a funny thing you mentioned about the surface with the billion, I had a conversation with a guy named, brilliant guy here at the British Museum, called Irvin Finkel. He’s a world expert at cuneiforms, which is a ancient writing on tablets and he doesn’t know about ChatGPT or Gemini, he doesn’t even know about AI, but this first encounter with this AI is AI mode on Google.
Demis Hassabis
Yes.
Yes.
Lex Fridman
He’s like, is that what you’re talking about, this AI mode? And it’s just a reminder that there’s a large part of the world that doesn’t know about this AI thing.
He’s like, is that what you’re talking about, this AI mode? And it’s just a reminder that there’s a large part of the world that doesn’t know about this AI thing.
Demis Hassabis
Yeah, I know. It’s funny. If you live on X and Twitter and I mean it’s sort of at least my feed, it’s all AI. And there’s certain places where in the valley and certain pockets where everyone’s just, all they’re thinking about is AI, but a lot of the normal world hasn’t come across it yet.
Yeah, I know. It’s funny. If you live on X and Twitter and I mean it’s sort of at least my feed, it’s all AI. And there’s certain places where in the valley and certain pockets where everyone’s just, all they’re thinking about is AI, but a lot of the normal world hasn’t come across it yet.
Lex Fridman
And that’s a great responsibility to their first interaction. The grand scale of the rural, India or anywhere across the world you get to…
And that’s a great responsibility to their first interaction. The grand scale of the rural, India or anywhere across the world you get to…
Demis Hassabis
And we want it to be as good as possible and in a lot of cases it’s just under the hood powering, making something like maps or search work better. And ideally for a lot of those people should just be seamless. It’s just new technology that makes their lives more productive and helps them.
And we want it to be as good as possible and in a lot of cases it’s just under the hood powering, making something like maps or search work better. And ideally for a lot of those people should just be seamless. It’s just new technology that makes their lives more productive and helps them.
Lex Fridman
A bunch of folks on the Gemini product and engineering teams spoken extremely highly of you on another dimension, that I almost didn’t even expect. I kind of think of you as the deep scientists and caring about these big research scientific questions. But they also said you’re a great product guy, like how to create a thing that a lot of people would use and enjoy using. So can you maybe speak to what it takes to create a AI based product that a lot of people enjoy using?
A bunch of folks on the Gemini product and engineering teams spoken extremely highly of you on another dimension, that I almost didn’t even expect. I kind of think of you as the deep scientists and caring about these big research scientific questions. But they also said you’re a great product guy, like how to create a thing that a lot of people would use and enjoy using. So can you maybe speak to what it takes to create a AI based product that a lot of people enjoy using?
Demis Hassabis
Yeah. Well, I mean, again, that comes back from my game design days where I used to design games for millions of gamers. People would forget about that. I’ve had experience with cutting edge technology in product that is how games was in the nineties.
Yeah. Well, I mean, again, that comes back from my game design days where I used to design games for millions of gamers. People would forget about that. I’ve had experience with cutting edge technology in product that is how games was in the nineties.
And so I love actually the combination of cutting edge research and then being applied in a product and to power a new experience. And so, I think it’s the same skill really of imagining what it would be like to use it viscerally, and having good taste coming back to earlier. The same thing that’s useful in science, I think can also be useful in product design.
And I’ve just had a very, always been a sort of multidisciplinary person, so I don’t see the boundaries really between arts and sciences, or product and research. It’s a continuum for me. I like working on products that are cutting edge. I wouldn’t be able to have cutting edge technology under the hood. I wouldn’t be excited about them if they were just run-of-the-mill products. It requires this invention, creativity, cap capability.
Lex Fridman
What are some specific things you learned about when you, even on the LLM side, you’re interacting with Gemini? This doesn’t feel like, the layout, the interface, maybe the trade-off between the latency, how to present to the user, how long to wait and how that waiting is shown or the reason capabilities. There are some interesting things because like you said, it’s the very cutting edge. We don’t know how to present it correctly. So is there some specific things you’ve learned?
What are some specific things you learned about when you, even on the LLM side, you’re interacting with Gemini? This doesn’t feel like, the layout, the interface, maybe the trade-off between the latency, how to present to the user, how long to wait and how that waiting is shown or the reason capabilities. There are some interesting things because like you said, it’s the very cutting edge. We don’t know how to present it correctly. So is there some specific things you’ve learned?
Demis Hassabis
I mean it’s such a false evolving space, evaluating this all the time, but where we are today is that you want to continually simplify things, whether that’s the interface or what you build on top of the model, you kind of want to get out of the way of the model. The model train is coming down the track and it’s improving unbelievably fast. This relentless progress we talked about earlier.
I mean it’s such a false evolving space, evaluating this all the time, but where we are today is that you want to continually simplify things, whether that’s the interface or what you build on top of the model, you kind of want to get out of the way of the model. The model train is coming down the track and it’s improving unbelievably fast. This relentless progress we talked about earlier.
You look at 2.5 versus 1.5 and it’s just a gigantic improvement, and we expect that again for the future versions. And so the models are becoming more capable.
So you’ve got, the interesting thing about the design space in today’s world, these AI first products is you’ve got to design not for what the thing can do today, the technology can do today, but in a year’s time. So you actually have to be a very technical product person, because you’ve got to have a good intuition for and feel for, okay, that thing that I’m dreaming about now can’t be done today, but is the research track on schedule to basically intercept that in six months or a year’s time.
So you’ve kind of got to intercept where this highly changing technology’s going, as well as the new capabilities are coming online all the time that we didn’t realize before that can allow these research to work. Or now we’ve got video generation, what do we do with that, this multimodal stuff.
Is it, one question I have is it really going to be the current UI that we have today, these text box chats? Seems very unlikely once you think about these super multimodal systems. Shouldn’t it be something more like Minority Report where you are sort of vibing with it in a kind of collaborative way? It seems very restricted today. I think we’ll look back on today’s interfaces and products and systems as quite archaic in maybe in just a couple of years.
So I think there’s a lot of space actually for innovation to happen on the product side as well as the research side.
Lex Fridman
And then we are offline talking about the keyboard is, the open question is how, when and how much will we move to audio as the primary way of interacting with the machines around us versus typing stuff?
And then we are offline talking about the keyboard is, the open question is how, when and how much will we move to audio as the primary way of interacting with the machines around us versus typing stuff?
Demis Hassabis
Yeah, I mean typing is a very low bandwidth way of doing it, even if you’re a very fast typer. And I think we’re going to have to start utilizing other devices, whether that’s smart glasses, audio earbuds, and eventually maybe some sorts of neural devices, where we can increase the input and the output bandwidth to something maybe a 100x of what is today.
Yeah, I mean typing is a very low bandwidth way of doing it, even if you’re a very fast typer. And I think we’re going to have to start utilizing other devices, whether that’s smart glasses, audio earbuds, and eventually maybe some sorts of neural devices, where we can increase the input and the output bandwidth to something maybe a 100x of what is today.
Lex Fridman
I think that underappreciated art form is the interface design because I think you can not unlock the power of the intelligence of a system if you don’t have the right interface. The interface is really the way you unlock its power. It’s such an interesting question of how to do that. So how you would think getting out of the way isn’t real art form.
I think that underappreciated art form is the interface design because I think you can not unlock the power of the intelligence of a system if you don’t have the right interface. The interface is really the way you unlock its power. It’s such an interesting question of how to do that. So how you would think getting out of the way isn’t real art form.
Demis Hassabis
Yes. It’s the sort of thing that I guess Steve Jobs always talked about, right? It’s simplicity, beauty, and elegance that we want. And we’re not that nobody’s there yet, in my opinion. And that’s what I would like us to get to.
Yes. It’s the sort of thing that I guess Steve Jobs always talked about, right? It’s simplicity, beauty, and elegance that we want. And we’re not that nobody’s there yet, in my opinion. And that’s what I would like us to get to.
Again, it sort of speaks to Go again as a game, the most elegant, beautiful game. Can you make an interface as beautiful as that? Actually, I think we’re going to enter an era of AI-generated interfaces that are probably personalized to you, so it fits the way that you, your aesthetic, your feel, the way that your brain works and the AI kind of generates that depending on the task. That feels like that’s probably the direction we’ll end up in.
Lex Fridman
Because some people are power users and they want every single parameter on the screen, everything based perhaps me with a keyboard-based navigation and to have shortcuts for everything. And some people like the minimalism.
Because some people are power users and they want every single parameter on the screen, everything based perhaps me with a keyboard-based navigation and to have shortcuts for everything. And some people like the minimalism.
Demis Hassabis
Just hide all of that complexity. Yeah, exactly.
Just hide all of that complexity. Yeah, exactly.
Lex Fridman
Yeah. Well, I’m glad you have a Steve Jobs mode in you as well. This is great. Einstein mode, Steve Jobs mode.
Yeah. Well, I’m glad you have a Steve Jobs mode in you as well. This is great. Einstein mode, Steve Jobs mode.
All right, let me try to trick you into answering a question. When will Gemini 3 come up? Is it before or after DTS-6? The world waits for both.
And what does it take to go from 2.5 To 3.0? Because it seems like there’s been a lot of releases of 2.5, which are already leaps in performance. So what does it even mean to go to a new version? Is it about performance? Is it about a completely different flavor of an experience?
Demis Hassabis
Yeah, well, so the way it works with our different version numbers is we try to collect, so maybe it takes roughly six months or something to do a new kind of full run and the full productization of a new version.
Yeah, well, so the way it works with our different version numbers is we try to collect, so maybe it takes roughly six months or something to do a new kind of full run and the full productization of a new version.
And during that time, lots of new interesting research iterations and ideas come up, and we sort of collect them all together that you could imagine the last six months worth of interesting ideas on the architecture front, maybe it’s on the data front, it’s like many different possible things. And we package that all up, test which ones are likely to be useful for the next iteration, and then bundle that all together. And then we start the new giant hero training run. And then of course that gets monitored.
Demis Hassabis
… run, right? And then of course that gets monitored and then at the end of the pre-training, then there’s all the post-training, there’s many different ways of doing that, different ways of patching it. So there’s a whole experimental phase there which you can also get a lot of gains out. And that’s where you see the version numbers usually referring to the base model, the pre-trained model, and then the interim versions of 2.5 and the different sizes and the different little additions. They’re often patches or post-training ideas that can be done afterwards off the same basic architecture. And then of course on top of that, we also have different sizes, Pro and Flash and Flashlight that are often distilled from the biggest ones, the Flash model from the Pro model. And that means we have a range of different choices. If you’re the developer, do you want to prioritize performance or speed and cost?
… run, right? And then of course that gets monitored and then at the end of the pre-training, then there’s all the post-training, there’s many different ways of doing that, different ways of patching it. So there’s a whole experimental phase there which you can also get a lot of gains out. And that’s where you see the version numbers usually referring to the base model, the pre-trained model, and then the interim versions of 2.5 and the different sizes and the different little additions. They’re often patches or post-training ideas that can be done afterwards off the same basic architecture. And then of course on top of that, we also have different sizes, Pro and Flash and Flashlight that are often distilled from the biggest ones, the Flash model from the Pro model. And that means we have a range of different choices. If you’re the developer, do you want to prioritize performance or speed and cost?
And we like to think of this Pareto frontier of on the one hand, the Y-axis is like performance, and then the X- axis is cost or latency and speed basically. And we have models that completely define the frontier. So whatever your trade-off is that you want as an individual user or as a developer, you should find one of our models satisfies that constraint.
Lex Fridman
So behind the version changes, there is a big run and then there’s just an insane complexity of productization. Then there’s the distillation of the different sizes along that Pareto front. And then as with each step you take, you realize there might be a cool product. There’s side quests.
So behind the version changes, there is a big run and then there’s just an insane complexity of productization. Then there’s the distillation of the different sizes along that Pareto front. And then as with each step you take, you realize there might be a cool product. There’s side quests.
Demis Hassabis
Yes, exactly.
Yes, exactly.
Lex Fridman
And then you also don’t want to take too many side quests because then you have a million versions and a million products.
And then you also don’t want to take too many side quests because then you have a million versions and a million products.
Demis Hassabis
Yes, precisely.
Yes, precisely.
Lex Fridman
It’s very unclear, but you also get super excited because it’s super cool. How does even look at VLs? Very cool. How does it fit into the bigger Thing?
It’s very unclear, but you also get super excited because it’s super cool. How does even look at VLs? Very cool. How does it fit into the bigger Thing?
Demis Hassabis
Yes, exactly. Exactly. And then you’re constantly this process of converging upstream, we call it ideas from the product surfaces or from the post-training and even further downstream and that, you upstream that into the core model training for the next run. So then the main model, the main Gemini track becomes more and more general and eventually, AGI.
Yes, exactly. Exactly. And then you’re constantly this process of converging upstream, we call it ideas from the product surfaces or from the post-training and even further downstream and that, you upstream that into the core model training for the next run. So then the main model, the main Gemini track becomes more and more general and eventually, AGI.
Lex Fridman
One hero run.
One hero run.
Demis Hassabis
Yes, exactly. A few hero runs later.
Yes, exactly. A few hero runs later.
Lex Fridman
Yeah. So sometimes when you release these new versions or every version, really, are benchmarks productive or counterproductive for showing the performance of a model?
Yeah. So sometimes when you release these new versions or every version, really, are benchmarks productive or counterproductive for showing the performance of a model?
Demis Hassabis
You need them, but it’s important that you don’t overfit to them. So they shouldn’t be the be all and end all. So there’s LMArena, or it used to be called LEMSYS, that’s one of them that turned out organically to be one of the main ways people like to test these systems, at least the chatbots. Obviously there’s loads of academic benchmarks that test mathematics and coding ability, general language ability, science ability and so on. And then we have our own internal benchmarks that we care about.
You need them, but it’s important that you don’t overfit to them. So they shouldn’t be the be all and end all. So there’s LMArena, or it used to be called LEMSYS, that’s one of them that turned out organically to be one of the main ways people like to test these systems, at least the chatbots. Obviously there’s loads of academic benchmarks that test mathematics and coding ability, general language ability, science ability and so on. And then we have our own internal benchmarks that we care about.
It’s a multi objective optimization problem. You don’t want to be good at just one thing. We’re trying to build general systems that are good across the board, and you try and make no-regret improvements. So where you improve in coding, but it doesn’t reduce your performance in other areas. So that’s the hard part because of course you could put more coding data in or you could put more, I don’t know, gaming data in, but then does it make worse your language system or your translation systems and other things that you care about? So you’ve got to continually monitor this increasingly larger and larger suite of benchmarks. And also when you stick them into products, these models, you also care about the direct usage and the direct stats and the signals that you’re getting from the end users, whether they’re coders or the average person using the chat interfaces.
Lex Fridman
Because ultimately, you want to measure the usefulness, but it’s so hard to convert that into a number. It’s really vibe based benchmarks across a large number of users. And it’s hard to know and it would be just terrifying to me, you know have a much smarter model, but it’s just something vibe based. It’s not quite working. That’s such a scary and everything you just said. It has to be smart and useful across so many domains. So you get super excited all of a sudden solving programming problems you’ve never been able to solve before, but now it’s crappier poetry or something and it’s just, I don’t know, that’s a stressful. That’s so difficult-
Because ultimately, you want to measure the usefulness, but it’s so hard to convert that into a number. It’s really vibe based benchmarks across a large number of users. And it’s hard to know and it would be just terrifying to me, you know have a much smarter model, but it’s just something vibe based. It’s not quite working. That’s such a scary and everything you just said. It has to be smart and useful across so many domains. So you get super excited all of a sudden solving programming problems you’ve never been able to solve before, but now it’s crappier poetry or something and it’s just, I don’t know, that’s a stressful. That’s so difficult-
Demis Hassabis
To balance.
To balance.
Lex Fridman
To balance and because you can’t really trust the benchmarks, you really have to trust the end users.
To balance and because you can’t really trust the benchmarks, you really have to trust the end users.
Demis Hassabis
Yeah. And then other things that are even more esoteric come into play, like the style of the persona of the system, is it verbose? Is it succinct? Is it humorous? And different people like different things. So it’s very interesting. It’s almost like cutting edge part of psychology research or personality research. I used to do that in my PhD, like five factor personality, what do we actually want our systems to be like? And different people will like different things as well. So these are all just new problems in product space that I don’t think I’ve ever really been tackled before, but we’re going to rapidly have to deal with now.
Yeah. And then other things that are even more esoteric come into play, like the style of the persona of the system, is it verbose? Is it succinct? Is it humorous? And different people like different things. So it’s very interesting. It’s almost like cutting edge part of psychology research or personality research. I used to do that in my PhD, like five factor personality, what do we actually want our systems to be like? And different people will like different things as well. So these are all just new problems in product space that I don’t think I’ve ever really been tackled before, but we’re going to rapidly have to deal with now.
Lex Fridman
I think it’s a super fascinating space, developing the character of the thing and in so doing, it puts a mirror to ourselves, what are the kind of things that we like? Because prompt engineering allows you to control a lot of those elements, but can the product make it easier for you to control the different flavors of those experiences, the different characters that you interact with?
I think it’s a super fascinating space, developing the character of the thing and in so doing, it puts a mirror to ourselves, what are the kind of things that we like? Because prompt engineering allows you to control a lot of those elements, but can the product make it easier for you to control the different flavors of those experiences, the different characters that you interact with?
Demis Hassabis
Yeah, exactly.
Yeah, exactly.
Competition and AI talent
Lex Fridman
So what’s the probability of Google DeepMind winning?
So what’s the probability of Google DeepMind winning?
Demis Hassabis
Well, I see it as winning. I think winning is the wrong way to look at it given how important and consequential what it is we’re building. So funny enough, I try not to view it like a game or competition even though that’s a lot of my mindset. It’s about in my view, all of us or those of us at the leading edge or have a responsibility to steward this unbelievable technology that could be used for incredible good but also has risks, steward it safely into the world for the benefit of humanity. That’s always what I’ve dreamed about and what we’ve always tried to do. And I hope that’s what eventually the community, maybe the international community will rally around when it becomes obvious that as we get closer and closer to AGI, that’s what’s needed.
Well, I see it as winning. I think winning is the wrong way to look at it given how important and consequential what it is we’re building. So funny enough, I try not to view it like a game or competition even though that’s a lot of my mindset. It’s about in my view, all of us or those of us at the leading edge or have a responsibility to steward this unbelievable technology that could be used for incredible good but also has risks, steward it safely into the world for the benefit of humanity. That’s always what I’ve dreamed about and what we’ve always tried to do. And I hope that’s what eventually the community, maybe the international community will rally around when it becomes obvious that as we get closer and closer to AGI, that’s what’s needed.
Lex Fridman
I agree with you. I think that’s beautifully put. You’ve said that you talk to and are on good terms with the leads of some of these labs. As the competition heats up, how hard is it to maintain those relationships?
I agree with you. I think that’s beautifully put. You’ve said that you talk to and are on good terms with the leads of some of these labs. As the competition heats up, how hard is it to maintain those relationships?
Demis Hassabis
It’s been okay so far. I try to pride myself in being collaborative. I’m a collaborative person. Research is a collaborative endeavor. Science is a collaborative endeavor. It’s all good for humanity in the end if you cure terrible diseases and you come up with an incredible cure, this is net win for humanity. And the same with energy, all of the things that I’m interested in helping solve with AI. So I just want that technology to exist in the world and be used for the right things and the benefits of that, the productivity benefits of that being shared for the benefit of everyone. So I try to maintain good relations with all the leading lab people. They’re very interesting characters, many of them as you might expect.
It’s been okay so far. I try to pride myself in being collaborative. I’m a collaborative person. Research is a collaborative endeavor. Science is a collaborative endeavor. It’s all good for humanity in the end if you cure terrible diseases and you come up with an incredible cure, this is net win for humanity. And the same with energy, all of the things that I’m interested in helping solve with AI. So I just want that technology to exist in the world and be used for the right things and the benefits of that, the productivity benefits of that being shared for the benefit of everyone. So I try to maintain good relations with all the leading lab people. They’re very interesting characters, many of them as you might expect.
Lex Fridman
Yep.
Yep.
Demis Hassabis
But yeah, I’m on good terms I hope with pretty much all of them. And I think that’s going to be important when things get even more serious than they are now, that there are those communication channels and that’s what will facilitate cooperation or collaboration if that’s what is required, especially on things like safety.
But yeah, I’m on good terms I hope with pretty much all of them. And I think that’s going to be important when things get even more serious than they are now, that there are those communication channels and that’s what will facilitate cooperation or collaboration if that’s what is required, especially on things like safety.
Lex Fridman
Yeah, I hope there’s some collaboration on stuff that’s less high stakes and in so doing, serves as a mechanism for maintaining friendships and relationships. So for example, I think the internet would love it if you and Elon somehow collaborate on creating a video game, that kind of thing. I think that enables camaraderie and good terms. And also you two are legit gamers, so it’s just fun to to create some-
Yeah, I hope there’s some collaboration on stuff that’s less high stakes and in so doing, serves as a mechanism for maintaining friendships and relationships. So for example, I think the internet would love it if you and Elon somehow collaborate on creating a video game, that kind of thing. I think that enables camaraderie and good terms. And also you two are legit gamers, so it’s just fun to to create some-
Demis Hassabis
Yeah, that would be awesome. And we’ve talked about that in the past and it may be a cool thing that we can do. And I agree with you, it’d be nice to have side projects in a way where one can just lean into the collaboration aspect of it and it’s a a win-win for both sides and it builds up that collaborative muscle.
Yeah, that would be awesome. And we’ve talked about that in the past and it may be a cool thing that we can do. And I agree with you, it’d be nice to have side projects in a way where one can just lean into the collaboration aspect of it and it’s a a win-win for both sides and it builds up that collaborative muscle.
Lex Fridman
I see the scientific endeavor as that side project for humanity and I think Google DeepMind has been really pushing that. I would love to see other labs do more scientific stuff and then collaborate because it just seems like it’s easier to collaborate on the big scientific questions.
I see the scientific endeavor as that side project for humanity and I think Google DeepMind has been really pushing that. I would love to see other labs do more scientific stuff and then collaborate because it just seems like it’s easier to collaborate on the big scientific questions.
Demis Hassabis
I agree and I would love to see a lot of people, all of the other labs talk about science, but I think we’re really the only ones using it for science and doing that. And that’s why projects like AlphaFold are so important to me. And I think to our mission is to show how AI can be clearly used in a very concrete way for the benefit of humanity. And also, we spun out companies like Isomorphic off the back of Alpha Fold to do drug discovery and it’s going really well and you can think of build additional AlphaFold type systems to go into chemistry space to help accelerate drug design. And the examples I think we need to show and society needs to understand are where AI can bring these huge benefits.
I agree and I would love to see a lot of people, all of the other labs talk about science, but I think we’re really the only ones using it for science and doing that. And that’s why projects like AlphaFold are so important to me. And I think to our mission is to show how AI can be clearly used in a very concrete way for the benefit of humanity. And also, we spun out companies like Isomorphic off the back of Alpha Fold to do drug discovery and it’s going really well and you can think of build additional AlphaFold type systems to go into chemistry space to help accelerate drug design. And the examples I think we need to show and society needs to understand are where AI can bring these huge benefits.
Lex Fridman
Well, from the bottom of my heart, thank you for pushing the scientific efforts forward with rigor, with fun, with humility, all of it. I just love to see and still talking about P equals NP, it’s just incredible. So I love it. There’s been seemingly a war for talent. Some of it is meme, I don’t know. What do you think about Meta buying up talent with huge salaries and the heating up of this battle for talent? I should say that I think a lot of people see DeepMind as a really great place to do cutting-edge work for the reasons that you’ve outlined. There’s this vibrant scientific culture.
Well, from the bottom of my heart, thank you for pushing the scientific efforts forward with rigor, with fun, with humility, all of it. I just love to see and still talking about P equals NP, it’s just incredible. So I love it. There’s been seemingly a war for talent. Some of it is meme, I don’t know. What do you think about Meta buying up talent with huge salaries and the heating up of this battle for talent? I should say that I think a lot of people see DeepMind as a really great place to do cutting-edge work for the reasons that you’ve outlined. There’s this vibrant scientific culture.
Demis Hassabis
Yeah. Well look, of course there’s a strategy that Meta is taking right now. I think that from my perspective at least, I think the people that are real believers in the mission of AGI and what it can do and understand the real consequences, both good and bad from that and what that responsibility entails, I think they’re mostly doing it to be like myself, to be on the frontier of that research so they can help influence the way that goes and steward that technology safely into the world. And Meta right now are not at the frontier. Maybe they’ll manage to get back on there and it’s probably rational what they’re doing from their perspective because they’re behind and they need to do something. But I think there’s more important things than just money. Of course one has to pay people their market rates and all of these things and that continues to go up. And I was expecting this because more and more people are finally realizing, leaders of companies, what I’ve always known for 30 plus years now, which is that AGI is the most important technology probably that’s ever going to be invented. So in some senses, it’s rational to be doing that. But I also think there’s a much bigger question. People in AI these days are very well paid.
Yeah. Well look, of course there’s a strategy that Meta is taking right now. I think that from my perspective at least, I think the people that are real believers in the mission of AGI and what it can do and understand the real consequences, both good and bad from that and what that responsibility entails, I think they’re mostly doing it to be like myself, to be on the frontier of that research so they can help influence the way that goes and steward that technology safely into the world. And Meta right now are not at the frontier. Maybe they’ll manage to get back on there and it’s probably rational what they’re doing from their perspective because they’re behind and they need to do something. But I think there’s more important things than just money. Of course one has to pay people their market rates and all of these things and that continues to go up. And I was expecting this because more and more people are finally realizing, leaders of companies, what I’ve always known for 30 plus years now, which is that AGI is the most important technology probably that’s ever going to be invented. So in some senses, it’s rational to be doing that. But I also think there’s a much bigger question. People in AI these days are very well paid.
I remember when we were starting out back in 2010, I didn’t even pay myself a couple of years because it wasn’t enough money. We couldn’t raise any money, and these days, interns are being paid the amount that we raised as our first entire seed round. So it’s pretty funny. And I remember the days where I used to have to work for free and almost pay my own way to do an internship. Right now, it’s all the other around, but that’s just how it is. It’s the new world. But I think that we’ve been discussing what happens post- AGI and energy systems are solved and so on, what is even money going to mean? So I think in the economy and we’re going to have much bigger issues to work through and how does the economy function in that world and companies? So I think it’s a little bit of a side issue about salaries and things like that today.
Lex Fridman
Yeah, when you’re facing such gigantic consequences and gigantic, fascinating scientific questions-
Yeah, when you’re facing such gigantic consequences and gigantic, fascinating scientific questions-
Demis Hassabis
Which may be only a few years away.
Which may be only a few years away.
Future of programming
Lex Fridman
So the practicals, the pragmatic sense, if we zoom in on jobs, we can look at programmers because it seems like AI systems are currently doing incredibly well at programming and increasingly so. So A lot of people that program for a living, love programming are worried they will lose their jobs. How worried should they be do you think, and what’s the right way to adjust to the new reality and ensure that you survive and thrive as a human in the programming world?
So the practicals, the pragmatic sense, if we zoom in on jobs, we can look at programmers because it seems like AI systems are currently doing incredibly well at programming and increasingly so. So A lot of people that program for a living, love programming are worried they will lose their jobs. How worried should they be do you think, and what’s the right way to adjust to the new reality and ensure that you survive and thrive as a human in the programming world?
Demis Hassabis
Well, it’s interesting that programming, and it’s again counterintuitive to what we thought years ago, maybe that some of the skills that we think of as harder skills are turned out maybe to be the easier ones for various reasons. But coding and maths, because you can create a lot of synthetic data and verify if that data’s correct. So because of that nature of that, it’s easier to make things like synthetic data to train from. It’s also an area of course we’re all interested in because as programmers to help us and get faster at it and more productive.
Well, it’s interesting that programming, and it’s again counterintuitive to what we thought years ago, maybe that some of the skills that we think of as harder skills are turned out maybe to be the easier ones for various reasons. But coding and maths, because you can create a lot of synthetic data and verify if that data’s correct. So because of that nature of that, it’s easier to make things like synthetic data to train from. It’s also an area of course we’re all interested in because as programmers to help us and get faster at it and more productive.
So I think for the next era, like the next five, 10 years, I think what we’re going to find is people who embrace these technologies become almost at one with them, whether that’s in the creative industries or the technical industries will become superhumanly productive, I think. So the great programmers will be even better, but there’ll be even 10X even what they are today. And because there, you’ll be able to use their skills to utilize the tools to the maximum, exploit them to the maximum. And so I think that’s what we’re going to see in the next domain. So that’s going to cause quite a lot of change. And so that’s coming. A lot of people benefit from that.
So I think one example of that is if coding becomes easier, it becomes available to many more creatives to do more. But I think the top programmers will still have huge advantages as terms of specifying, going back to specifying what the architecture should be. The question should be how to guide these coding assistants in a way that’s useful and check whether the code they produce is good. So I think there’s plenty of headroom there for the foreseeable next few years.
Lex Fridman
So I think there’s several interesting things there. One is there’s a lot of imperative to just get better and better consistently of using these tools so they’re riding the wave of the improving models versus competing against them. But sadly, but that’s the nature of life on earth, there could be a huge amount of value to certain kinds of programming at the cutting edge and less value to other kinds. For example, it could be front-end web design might be more amenable to, as you’ve mentioned, to generation by AI systems and maybe for example, game engine design or something like this or back-end design or guiding systems in high-performance situations, high-performance programming type of design decisions, that might be extremely valuable. But it will shift where the humans are needed most and that’s scary for people to address.
So I think there’s several interesting things there. One is there’s a lot of imperative to just get better and better consistently of using these tools so they’re riding the wave of the improving models versus competing against them. But sadly, but that’s the nature of life on earth, there could be a huge amount of value to certain kinds of programming at the cutting edge and less value to other kinds. For example, it could be front-end web design might be more amenable to, as you’ve mentioned, to generation by AI systems and maybe for example, game engine design or something like this or back-end design or guiding systems in high-performance situations, high-performance programming type of design decisions, that might be extremely valuable. But it will shift where the humans are needed most and that’s scary for people to address.
Demis Hassabis
Yeah, I think that’s right. Anytime where there’s a lot of disruption and change, and we’ve had this, it’s not just this time. We’ve had this in many times in human history with the internet, mobile, but before that obviously, the Industrial Revolution and it’s going to be one of those eras where there will be a lot of change. I think there’ll be new jobs we can’t even imagine today, just like the internet created. And then those people with the right skill sets to ride that wave will become incredibly valuable, those skills. But maybe people will have to relearn or adapt a bit, their current skills. And the thing that’s going to be harder to deal with this time around is that I think what we’re going to see is something like probably 10 times the impact the Industrial Revolution had, but 10 times faster as well. So instead of a 100 years, it takes 10 years and so that’s going to make, it’s like a 100X, the impact and the speed combined.
Yeah, I think that’s right. Anytime where there’s a lot of disruption and change, and we’ve had this, it’s not just this time. We’ve had this in many times in human history with the internet, mobile, but before that obviously, the Industrial Revolution and it’s going to be one of those eras where there will be a lot of change. I think there’ll be new jobs we can’t even imagine today, just like the internet created. And then those people with the right skill sets to ride that wave will become incredibly valuable, those skills. But maybe people will have to relearn or adapt a bit, their current skills. And the thing that’s going to be harder to deal with this time around is that I think what we’re going to see is something like probably 10 times the impact the Industrial Revolution had, but 10 times faster as well. So instead of a 100 years, it takes 10 years and so that’s going to make, it’s like a 100X, the impact and the speed combined.
So I think going to make it more difficult for society to deal with and there’s a lot to think through and I think we need to be discussing that right now. And I encourage top economists in the world and philosophers to start thinking about how is society going to be affected by this and what should we do? Including things like universal basic provision or something like that where a lot of the increased productivity gets shared out and distributed to society and maybe in the form of services and other things where if you want more than that, you still go and get some incredibly rare skills and things like that and make yourself unique. But there’s a basic provision that is provided.
Lex Fridman
And if you think of government as a technology, there’s also interesting questions, not just in the economics, but just politics. How do you design a system that’s responding to the rapidly changing times such that you can represent the different pain that people feel from the different groups and how do you reallocate resources in a way that addresses that pain and represents the hope and the pain and the fears of different people in a way that doesn’t lead to division? Because politicians are often really good at fueling the division and using that to get elected, defining the other and then saying that’s bad. And based on that, I think that’s often counterproductive to leveraging a rapidly changing technology to help the world flourish. So we almost need to improve our political systems as well rapidly, if you think of them as a technology.
And if you think of government as a technology, there’s also interesting questions, not just in the economics, but just politics. How do you design a system that’s responding to the rapidly changing times such that you can represent the different pain that people feel from the different groups and how do you reallocate resources in a way that addresses that pain and represents the hope and the pain and the fears of different people in a way that doesn’t lead to division? Because politicians are often really good at fueling the division and using that to get elected, defining the other and then saying that’s bad. And based on that, I think that’s often counterproductive to leveraging a rapidly changing technology to help the world flourish. So we almost need to improve our political systems as well rapidly, if you think of them as a technology.
Demis Hassabis
Definitely. And I think we’ll need new governance structures, institutions probably to help with this transition. So I think political philosophy and political science is going to be key to that. But I think the number one thing, first of all is to create more abundance of resources. So that’s the number one thing. Increase productivity, get more resources, maybe eventually get out of the zero-sum situation. Then the second question is how to use those resources and distribute those resources. But yeah, you can’t do that without having that abundance first.
Definitely. And I think we’ll need new governance structures, institutions probably to help with this transition. So I think political philosophy and political science is going to be key to that. But I think the number one thing, first of all is to create more abundance of resources. So that’s the number one thing. Increase productivity, get more resources, maybe eventually get out of the zero-sum situation. Then the second question is how to use those resources and distribute those resources. But yeah, you can’t do that without having that abundance first.
John von Neumann
Lex Fridman
You mentioned to me the book, The Maniac by Benjamin Labatut, a book on first of all about you. There’s a bio about you.
You mentioned to me the book, The Maniac by Benjamin Labatut, a book on first of all about you. There’s a bio about you.
Demis Hassabis
Strange, yeah.
Strange, yeah.
Lex Fridman
Yes, sure. It’s unclear how much is fiction, how much is reality. But I think the central figure that is John von Neumann, I would say it’s a haunting and beautiful exploration of madness and genius and let’s say the double-edged sword of discovery. And for people who don’t know, John von Neumann is a legendary mind. He contributed to quantum mechanics. He was on the Manhattan Project. He is widely considered to be the father of or pioneer the modern computer and AI and so on. So many people say he’s one of the smartest humans ever, which is fascinating.
Yes, sure. It’s unclear how much is fiction, how much is reality. But I think the central figure that is John von Neumann, I would say it’s a haunting and beautiful exploration of madness and genius and let’s say the double-edged sword of discovery. And for people who don’t know, John von Neumann is a legendary mind. He contributed to quantum mechanics. He was on the Manhattan Project. He is widely considered to be the father of or pioneer the modern computer and AI and so on. So many people say he’s one of the smartest humans ever, which is fascinating.
And what’s also fascinating is he’s a person who saw nuclear science and physics become the atomic bomb, so you got to see ideas become a thing that has a huge amount of impact on the world. He also foresaw the same thing for computing, and that’s a little bit again, beautiful and haunting aspect of the book. Then taking a leap forward and looking at this, at least it all AlphaZero, AlphaGo AlphaZero big moment that maybe John von Neumann’s thinking was brought to reality. So I guess the question is what do you think if you got to hang out with John von Neumann now, what would he say about what’s going on?
Demis Hassabis
Well, that would be an amazing experience. He’s a fantastic mind. And I also love the way he spent a lot of his time at Princeton at the Institute of Advanced Studies, a very special place for thinking. And it’s amazing how much of a polymath he was and the spread of things he helped invent, including of course the Von Neumann architecture that all the modern computers are based on. And he had amazing foresight. I think he would’ve loved where we are today, and I think he would’ve really enjoyed AlphaGo being, he did game theory. I think he foresaw a lot of what would happen with learning machines, systems that are grown, I think he called it rather than programmed. I’m not sure how even maybe he wouldn’t even be that surprised. There’s the fruition of what I think he already foresaw in the 1950s.
Well, that would be an amazing experience. He’s a fantastic mind. And I also love the way he spent a lot of his time at Princeton at the Institute of Advanced Studies, a very special place for thinking. And it’s amazing how much of a polymath he was and the spread of things he helped invent, including of course the Von Neumann architecture that all the modern computers are based on. And he had amazing foresight. I think he would’ve loved where we are today, and I think he would’ve really enjoyed AlphaGo being, he did game theory. I think he foresaw a lot of what would happen with learning machines, systems that are grown, I think he called it rather than programmed. I’m not sure how even maybe he wouldn’t even be that surprised. There’s the fruition of what I think he already foresaw in the 1950s.
Lex Fridman
I wonder what advice he would give. He got to see the building of the atomic bomb with the Manhattan Project. I’m sure there’s interesting stuff that maybe is not talked about enough, maybe some bureaucratic aspect, maybe the influence of politicians, maybe not enough of picking up the phone and talking to people that are called enemies by the said politicians. There might be some deep wisdom that we just may have lost from that time actually.
I wonder what advice he would give. He got to see the building of the atomic bomb with the Manhattan Project. I’m sure there’s interesting stuff that maybe is not talked about enough, maybe some bureaucratic aspect, maybe the influence of politicians, maybe not enough of picking up the phone and talking to people that are called enemies by the said politicians. There might be some deep wisdom that we just may have lost from that time actually.
Demis Hassabis
Yeah, I’m sure there is. I read a lot of books for that time as well, Chronicle Time and some brilliant people involved. But I agree with you. I think maybe there needs to be more dialogue and understanding. I hope we can learn from those times. I think the difference here is that the AI has so many, it’s a multi-use technology. Obviously we’re trying to do things like solve all diseases, help with energy and scarcity, these incredible things. This is why all of us and myself, I started on this journey 30 plus years ago. But of course there are risks too. And probably Von Neumann, my guess is he foresaw both. And I think he said, I think it’s to his wife, that computers would be even more impactful in the world. And as we just discussed, I think that’s right. I think it’s going to be 10 times at least of the Industrial Revolution. So I think he’s right. So I think he would’ve been, I imagine, fascinated by where we are now.
Yeah, I’m sure there is. I read a lot of books for that time as well, Chronicle Time and some brilliant people involved. But I agree with you. I think maybe there needs to be more dialogue and understanding. I hope we can learn from those times. I think the difference here is that the AI has so many, it’s a multi-use technology. Obviously we’re trying to do things like solve all diseases, help with energy and scarcity, these incredible things. This is why all of us and myself, I started on this journey 30 plus years ago. But of course there are risks too. And probably Von Neumann, my guess is he foresaw both. And I think he said, I think it’s to his wife, that computers would be even more impactful in the world. And as we just discussed, I think that’s right. I think it’s going to be 10 times at least of the Industrial Revolution. So I think he’s right. So I think he would’ve been, I imagine, fascinated by where we are now.
Lex Fridman
And I think one of the, maybe you can correct me, but one of the takeaways from the book is that reason, as said in the book, Mad Dreams of Reason, it’s not enough for guiding humanity as we build these super powerful technology. That there’s something else. There’s also a religious component, whatever God, whatever religion gives, it pulls at something in the human spirit that raw cold reason doesn’t give us.
And I think one of the, maybe you can correct me, but one of the takeaways from the book is that reason, as said in the book, Mad Dreams of Reason, it’s not enough for guiding humanity as we build these super powerful technology. That there’s something else. There’s also a religious component, whatever God, whatever religion gives, it pulls at something in the human spirit that raw cold reason doesn’t give us.
Demis Hassabis
And I agree with that. I think we need to approach it with whatever you want to call it, a spiritual dimension or humanist dimension. Doesn’t have to be to do with religion, but this idea of a soul, what makes us human, this spark that we have, perhaps it’s to do with consciousness when we finally understand that, I think that has to be at the heart of the endeavor. And technology, I’ve always seen technology as the enabler, the tools that enable us to flourish and to understand more about the world. And I’m with Feynman on this, and he used to always talk about science and art being companions. You can understand it from both sides, the beauty of a flower, how beautiful it is, and also understand why the colors of the flower evolve like that. That just makes it more beautiful, just the intrinsic beauty of the flower.
And I agree with that. I think we need to approach it with whatever you want to call it, a spiritual dimension or humanist dimension. Doesn’t have to be to do with religion, but this idea of a soul, what makes us human, this spark that we have, perhaps it’s to do with consciousness when we finally understand that, I think that has to be at the heart of the endeavor. And technology, I’ve always seen technology as the enabler, the tools that enable us to flourish and to understand more about the world. And I’m with Feynman on this, and he used to always talk about science and art being companions. You can understand it from both sides, the beauty of a flower, how beautiful it is, and also understand why the colors of the flower evolve like that. That just makes it more beautiful, just the intrinsic beauty of the flower.
I’ve always seen it like that. And maybe in the Renaissance times, the great discoverers then, people like Da Vinci, I don’t think he saw any difference between science and art and perhaps religion. Everything was, it’s just part of being human and being inspired about the world around us. And that’s the philosophy I tried to take. And one of my favorite philosophers is Spinoza. And I think he combined that all very well, this idea of trying to understand the universe and understanding our place in it. And that was his way of understanding religion. And I think that’s quite beautiful. And for me, all of these things are related, interrelated, the technology and what it means to be human.
And I think it’s very important though that we remember that as when we’re immersed in the technology and the research, I think a lot of researchers that I see in our field are a little bit too narrow and only understand the technology. And I think also that’s why it’s important for this to be debated by society at large. I’m very supportive of things like the AI summits that will happen and governments understanding it. And I think that’s one good thing about the chatbot era and the product era of AI is that everyday person can actually feel and interact with cutting edge AI and feel it for themselves.
Lex Fridman
Yeah, because they force the technologists to have the human conversation. Yeah, for sure.
Yeah, because they force the technologists to have the human conversation. Yeah, for sure.
Demis Hassabis
Yeah.
Yeah.
Lex Fridman
That’s the hopeful aspect of it, like you said, it’s a dual use technology that we’re forcefully integrating the entire humanity into it, into the discussion about AI because ultimately AI, AGI will be used for things that states use technologies for, which is conflict and so on. And the more we integrate humans into this picture by having chats with them, the more we will guide.
That’s the hopeful aspect of it, like you said, it’s a dual use technology that we’re forcefully integrating the entire humanity into it, into the discussion about AI because ultimately AI, AGI will be used for things that states use technologies for, which is conflict and so on. And the more we integrate humans into this picture by having chats with them, the more we will guide.
Demis Hassabis
Yeah, be able to adapt, society will be able to adapt to these technologies we’ve always done in the past with the incredible technologies we’ve invented in the past.
Yeah, be able to adapt, society will be able to adapt to these technologies we’ve always done in the past with the incredible technologies we’ve invented in the past.
Lex Fridman
Do you think there will be something like a Manhattan Project where there will be an escalation of the power of this technology and states in their old way of thinking, we’ll try to use it as weapons technologies and there will be this escalation?
Do you think there will be something like a Manhattan Project where there will be an escalation of the power of this technology and states in their old way of thinking, we’ll try to use it as weapons technologies and there will be this escalation?
Demis Hassabis
I hope not. I think that would be very dangerous to do. And I think also not the right use of the technology. I hope we’ll end up with something more collaborative if needed, more like a CERN project where it’s research-focused and the best minds in the world come together to carefully complete the final steps and make sure it’s responsibly done before deploying it to the world. We’ll see. It’s difficult with the current geopolitical climate, I think, to see cooperation, but things can change. And I think at least on the scientific level, it’s important for the researchers to keep in touch and keep close to each other at least on those kinds of topics.
I hope not. I think that would be very dangerous to do. And I think also not the right use of the technology. I hope we’ll end up with something more collaborative if needed, more like a CERN project where it’s research-focused and the best minds in the world come together to carefully complete the final steps and make sure it’s responsibly done before deploying it to the world. We’ll see. It’s difficult with the current geopolitical climate, I think, to see cooperation, but things can change. And I think at least on the scientific level, it’s important for the researchers to keep in touch and keep close to each other at least on those kinds of topics.
Lex Fridman
And I personally believe on the education side and immigration side, it would be great if both directions, people from the West immigrated to China and China, back. There is some family human aspect of people just intermixing and thereby those ties grow strong. So you can’t divide against each other, this old school way of thinking. And so multicultural, multidisciplinary research teams working on scientific questions, that’s like the hope. Don’t let the leaders that are warmongers divide us. I think science is the ultimately really beautiful connector.
And I personally believe on the education side and immigration side, it would be great if both directions, people from the West immigrated to China and China, back. There is some family human aspect of people just intermixing and thereby those ties grow strong. So you can’t divide against each other, this old school way of thinking. And so multicultural, multidisciplinary research teams working on scientific questions, that’s like the hope. Don’t let the leaders that are warmongers divide us. I think science is the ultimately really beautiful connector.
Demis Hassabis
Yeah, science has always been, I think, quite a very collaborative endeavor and scientists know that it’s a collective endeavor as well, and we can all learn from each other. So perhaps it could be a vector to get a bit of cooperation.
Yeah, science has always been, I think, quite a very collaborative endeavor and scientists know that it’s a collective endeavor as well, and we can all learn from each other. So perhaps it could be a vector to get a bit of cooperation.
p(doom)
Lex Fridman
Ridiculous question, what’s your P-Doom? Probability of the human civilization destroys itself?
Ridiculous question, what’s your P-Doom? Probability of the human civilization destroys itself?
Demis Hassabis
Well, look, I don’t have a P-Doom number. The reason I don’t is because I think it would imply a level of precision that is not there. So I don’t know how people are getting their P-Doom numbers. I think it’s a little bit of ridiculous notion because what I would say is it’s definitely non-zero and it’s probably non-negligible. So that in itself is pretty sobering. And my view is it’s just hugely uncertain what these technologies are going to be able to do, how fast are they going to take off, how controllable are they going to be. Some things may turn out to be, and hopefully way easier than we thought, but it may be there’s some really hard problems that are harder than we guessed today, and I think we don’t know that for sure. And so under those conditions of a lot of uncertainty, but huge stakes both ways.
Well, look, I don’t have a P-Doom number. The reason I don’t is because I think it would imply a level of precision that is not there. So I don’t know how people are getting their P-Doom numbers. I think it’s a little bit of ridiculous notion because what I would say is it’s definitely non-zero and it’s probably non-negligible. So that in itself is pretty sobering. And my view is it’s just hugely uncertain what these technologies are going to be able to do, how fast are they going to take off, how controllable are they going to be. Some things may turn out to be, and hopefully way easier than we thought, but it may be there’s some really hard problems that are harder than we guessed today, and I think we don’t know that for sure. And so under those conditions of a lot of uncertainty, but huge stakes both ways.
On the one hand, we could solve all diseases, energy problems, the scarcity problem, and then travel to the stars and conscious of the stars and maximum human flourishing. On the other hand, is these P-Doom scenarios. So given the uncertainty around it and the importance of it, it’s clear to me the only rational, sensible approach is to proceed with cautious optimism. So we want the benefits of course, and all of the amazing things that AI can bring. And actually, I would be really worried for humanity given the other challenges that we have, climate, aging, resources, all of that if I didn’t know something like AI was coming down the line. How would we solve all those other problems? I think it’s hard. So I think it could be amazingly transformative for good. But on the other hand, there are these risks that we know are there.
Demis Hassabis
But on the other hand, there are these risks that we know are there, but we can’t quite quantify. So the best thing to do is to use the scientific method to do more research to try and more precisely define those risks and of course address them. And I think that’s what we’re doing. I think there probably needs to be 10 times more effort of that than there is now as we are getting closer and closer to the AGI line.
But on the other hand, there are these risks that we know are there, but we can’t quite quantify. So the best thing to do is to use the scientific method to do more research to try and more precisely define those risks and of course address them. And I think that’s what we’re doing. I think there probably needs to be 10 times more effort of that than there is now as we are getting closer and closer to the AGI line.
Lex Fridman
What would be the source of worry for you more? Would it be human-caused or AI, AGI caused? Are humans abusing that technology versus AGI itself through mechanism that you’ve spoken about, which is fascinating, deception or this kind of stuff getting better and better and better secretly and then escapes?
What would be the source of worry for you more? Would it be human-caused or AI, AGI caused? Are humans abusing that technology versus AGI itself through mechanism that you’ve spoken about, which is fascinating, deception or this kind of stuff getting better and better and better secretly and then escapes?
Demis Hassabis
I think they operate over different timescales and they’re equally important to address. So there’s just the common garden variety of bad actors using new technology, in this case, general purpose technology and repurposing it for harmful end. And that’s a huge risk and I think that has a lot of complications because generally I’m in huge favor of open science and open source, and in fact, we did it with all our science projects like AlphaFold and all of those things for the benefit of the scientific community. But how does one restrict bad actors access to these powerful systems, whether they’re individuals or even rogue states, but enable access at the same time to good actors to maximally build on top of? It’s pretty tricky problem that I’ve not heard a clear solution to. So there’s the bad actor use case problem, and then there’s obviously, as the systems become more agentic and closer to AGI and more autonomous, how do we ensure the guardrails and they stick to what we want them to do and under our control?
I think they operate over different timescales and they’re equally important to address. So there’s just the common garden variety of bad actors using new technology, in this case, general purpose technology and repurposing it for harmful end. And that’s a huge risk and I think that has a lot of complications because generally I’m in huge favor of open science and open source, and in fact, we did it with all our science projects like AlphaFold and all of those things for the benefit of the scientific community. But how does one restrict bad actors access to these powerful systems, whether they’re individuals or even rogue states, but enable access at the same time to good actors to maximally build on top of? It’s pretty tricky problem that I’ve not heard a clear solution to. So there’s the bad actor use case problem, and then there’s obviously, as the systems become more agentic and closer to AGI and more autonomous, how do we ensure the guardrails and they stick to what we want them to do and under our control?
Lex Fridman
Yeah, I tend to, maybe my mind is limited, worry more about the humans, so the bad actors. And there it could be in part how do you not put destructive technology in the hands of bad actors, but in another part from, again, geopolitical technology perspective, how do you reduce the number of bad actors in the world? That’s also an interesting human problem.
Yeah, I tend to, maybe my mind is limited, worry more about the humans, so the bad actors. And there it could be in part how do you not put destructive technology in the hands of bad actors, but in another part from, again, geopolitical technology perspective, how do you reduce the number of bad actors in the world? That’s also an interesting human problem.
Demis Hassabis
Yeah, it’s a hard problem. I mean, look, we can maybe also use the technology itself to help early warning on some of the bad actor use cases, right? Whether that’s bio or nuclear or whatever it is, AI could be potentially helpful there as long as the AI that you’re using is itself reliable, right? So it’s a sort of interlocking problem and that’s what makes it very tricky. And again, it may require some agreement internationally, at least between China and the U.S. of some basic standards. Right.
Yeah, it’s a hard problem. I mean, look, we can maybe also use the technology itself to help early warning on some of the bad actor use cases, right? Whether that’s bio or nuclear or whatever it is, AI could be potentially helpful there as long as the AI that you’re using is itself reliable, right? So it’s a sort of interlocking problem and that’s what makes it very tricky. And again, it may require some agreement internationally, at least between China and the U.S. of some basic standards. Right.
Humanity
Lex Fridman
I have to ask you about the book, The Maniac. There’s the hand of God moment, Lee Sedol’s move 78 that perhaps the last time a human did a move of pure human genius and beat AlphaGo or broke its brain.
I have to ask you about the book, The Maniac. There’s the hand of God moment, Lee Sedol’s move 78 that perhaps the last time a human did a move of pure human genius and beat AlphaGo or broke its brain.
Demis Hassabis
Yes.
Yes.
Lex Fridman
Sorry to anthropomorphize, but it’s an interesting moment because I think in so many domains it will keep happening.
Sorry to anthropomorphize, but it’s an interesting moment because I think in so many domains it will keep happening.
Demis Hassabis
Yeah, it’s a special moment and it was great for Lee Sedol. I think it’s in a way they were inspiring each other. We as a team were inspired by Lee Sedol’s brilliance and nobleness. Then maybe he got inspired by what AlphaGo was doing to then conjure this incredible inspirational moment, captured very well in the documentary about it. And I think that’ll continue in many domains where there’s this, at least again for the foreseeable future, of the humans bringing in their ingenuity and asking the right question, let’s say, and then utilizing these tools in a way that then cracks a problem.
Yeah, it’s a special moment and it was great for Lee Sedol. I think it’s in a way they were inspiring each other. We as a team were inspired by Lee Sedol’s brilliance and nobleness. Then maybe he got inspired by what AlphaGo was doing to then conjure this incredible inspirational moment, captured very well in the documentary about it. And I think that’ll continue in many domains where there’s this, at least again for the foreseeable future, of the humans bringing in their ingenuity and asking the right question, let’s say, and then utilizing these tools in a way that then cracks a problem.
Lex Fridman
Yeah. As the AI become smarter and smarter, one of the interesting questions we can ask ourselves is what makes humans special? It does feel perhaps biased that we humans are deeply special. I don’t know if it’s our intelligence, it could be something else, that other thing that’s outside the mad dreams of reason.
Yeah. As the AI become smarter and smarter, one of the interesting questions we can ask ourselves is what makes humans special? It does feel perhaps biased that we humans are deeply special. I don’t know if it’s our intelligence, it could be something else, that other thing that’s outside the mad dreams of reason.
Demis Hassabis
I think that’s what I’ve always imagined when I was a kid and starting on this journey of I was of course fascinated by things like consciousness, did a neuroscience PhD to look at how the brain works, especially imagination and memory. I focused on the hippocampus and it’s sort of going to be interesting. I always thought the best way, of course, one can philosophize about it and have thought experiments and maybe even do actual experiments like you do in neuroscience on real brains. But in the end, I always imagine that building AI, a kind of intelligent artifact, and then comparing that to the human mind and seeing what the differences were would be the best way to uncover what’s special about the human mind, if indeed there is anything special.
I think that’s what I’ve always imagined when I was a kid and starting on this journey of I was of course fascinated by things like consciousness, did a neuroscience PhD to look at how the brain works, especially imagination and memory. I focused on the hippocampus and it’s sort of going to be interesting. I always thought the best way, of course, one can philosophize about it and have thought experiments and maybe even do actual experiments like you do in neuroscience on real brains. But in the end, I always imagine that building AI, a kind of intelligent artifact, and then comparing that to the human mind and seeing what the differences were would be the best way to uncover what’s special about the human mind, if indeed there is anything special.
And I suspect there probably is, but it’s going to be hard to… I think this journey we’re on will help us understand that and define that. And there may be a difference between carbon based substrates that we are and silicon ones when they process information. One of the best definitions I like of consciousness is it’s the way information feels when we process it, right?
Lex Fridman
Yeah.
Yeah.
Demis Hassabis
It could be. I mean, it’s not a very helpful scientific explanation, but I think it’s kind of interesting intuitive one. And so on this journey, this scientific journey we’re on will I think help uncover that mystery.
It could be. I mean, it’s not a very helpful scientific explanation, but I think it’s kind of interesting intuitive one. And so on this journey, this scientific journey we’re on will I think help uncover that mystery.
Lex Fridman
Yeah. What I cannot create, I do not understand. That’s somebody you deeply admire, Richard Feynman, like you mentioned. You also reach for the Wigner’s dreams of universality that he saw in constrained domains, but also broadly generally in mathematics and so on. So many aspects on which you’re pushing towards not to start trouble at the end, but Roger Penrose.
Yeah. What I cannot create, I do not understand. That’s somebody you deeply admire, Richard Feynman, like you mentioned. You also reach for the Wigner’s dreams of universality that he saw in constrained domains, but also broadly generally in mathematics and so on. So many aspects on which you’re pushing towards not to start trouble at the end, but Roger Penrose.
Consciousness and quantum computation
Demis Hassabis
Yes. Okay.
Yes. Okay.
Lex Fridman
So do you think consciousness, there’s this hard problem of consciousness, how information feels. Do you think consciousness, first of all, is a computation? And if is, if it’s information processing, like you said, everything is, is it something that could be modeled by a classical computer?
So do you think consciousness, there’s this hard problem of consciousness, how information feels. Do you think consciousness, first of all, is a computation? And if is, if it’s information processing, like you said, everything is, is it something that could be modeled by a classical computer?
Demis Hassabis
Yeah.
Yeah.
Lex Fridman
Or is it a quantum mechanical in nature?
Or is it a quantum mechanical in nature?
Demis Hassabis
Well, look, Penrose is an amazing thinker, one of the greatest of the modern era, and we’ve had a lot of discussions about this. Of course, we cordially disagree, which is I feel like… I mean, he collaborated with a lot of good neuroscientists to see if he could find mechanisms for quantum mechanics behavior in the brain. And to my knowledge, they haven’t found anything convincing yet. So my betting is that it’s mostly it is just classical computing that’s going on in the brain, which suggests that all the phenomena are modelable or mimicable by a classical computer. But we’ll see. There may be this final mysterious things of the feeling of consciousness, the qualia, these kinds of things that philosophers debate where it’s unique to the substrate.
Well, look, Penrose is an amazing thinker, one of the greatest of the modern era, and we’ve had a lot of discussions about this. Of course, we cordially disagree, which is I feel like… I mean, he collaborated with a lot of good neuroscientists to see if he could find mechanisms for quantum mechanics behavior in the brain. And to my knowledge, they haven’t found anything convincing yet. So my betting is that it’s mostly it is just classical computing that’s going on in the brain, which suggests that all the phenomena are modelable or mimicable by a classical computer. But we’ll see. There may be this final mysterious things of the feeling of consciousness, the qualia, these kinds of things that philosophers debate where it’s unique to the substrate.
We may even come towards understanding that when if we do things like neural link or have neural interfaces to the AI systems, which I think we probably will eventually, maybe to keep up with the AI systems, we might actually be able to feel for ourselves what it’s like to compute on silicon, right? And maybe that will tell us. So I think it’s going to be interesting. I had a debate once with the late Daniel Dennett about why do we think each other are conscious? Okay, so it’s for two reasons. One is you’re exhibiting the same behavior that I am. So that’s one thing. Behaviorally you seem like a conscious being if I am.
But the second thing which is often overlooked is that we’re running on the same substrate. So if you’re behaving in the same way and we’re running on the same substrate, it’s most parsimonious to assume you’re feeling the same experience that I’m feeling. But with an AI that’s on silicon, we won’t be able to rely on the second part, even if it exhibits the first part, that behavior looks like a behavior of a conscious being. It might even claim it is, but we wouldn’t know how it actually felt and it probably couldn’t know what we felt, at least in the first stages. Maybe when we get to superintelligence and the technologies that builds, perhaps we’ll be able to bridge that.
Lex Fridman
No, I mean that’s a huge test for radical empathy is to empathize with a different substrate.
No, I mean that’s a huge test for radical empathy is to empathize with a different substrate.
Demis Hassabis
Right. Exactly. We’ve never had to confront that before.
Right. Exactly. We’ve never had to confront that before.
Lex Fridman
Yeah. So maybe through brain computer interfaces be able to truly empathize what it feels like to be a computer, to compute.
Yeah. So maybe through brain computer interfaces be able to truly empathize what it feels like to be a computer, to compute.
Demis Hassabis
Well, for information to be computed not on a carbon system.
Well, for information to be computed not on a carbon system.
Lex Fridman
I mean, that’s deeply… Some people kind of think about that with plants, with other life forms which are different.
I mean, that’s deeply… Some people kind of think about that with plants, with other life forms which are different.
Demis Hassabis
Yes, it could be exactly.
Yes, it could be exactly.
Lex Fridman
Similar substrate, but sufficiently far enough on the evolutionary tree that it requires a radical empathy, but to do that with a computer.
Similar substrate, but sufficiently far enough on the evolutionary tree that it requires a radical empathy, but to do that with a computer.
Demis Hassabis
I mean, look, there are animal studies on this. Of course, higher animals like killer whales and dolphins and dogs and monkeys, they have some, and elephants, they have some aspects certainly of consciousness, right? Even though they might not be that smart on an IQ sense. So we can already empathize with that and maybe even some of our systems one day, like we built this thing called DolphinGemma, which a version of our system was trained on dolphin and whale sounds, and maybe we’ll be able to build an interpreter or translator at some point which would be pretty cool.
I mean, look, there are animal studies on this. Of course, higher animals like killer whales and dolphins and dogs and monkeys, they have some, and elephants, they have some aspects certainly of consciousness, right? Even though they might not be that smart on an IQ sense. So we can already empathize with that and maybe even some of our systems one day, like we built this thing called DolphinGemma, which a version of our system was trained on dolphin and whale sounds, and maybe we’ll be able to build an interpreter or translator at some point which would be pretty cool.
Lex Fridman
What gives you hope for the future of human civilization?
What gives you hope for the future of human civilization?
Demis Hassabis
Well, what gives me hope is that I think our almost limitless ingenuity, first of all. I think the best of us and the best human minds are incredible. And I love meeting and watching any human that’s the top of their game, whether that’s sport or science or art, it’s just nothing more wonderful than that, seeing them in their element in flow. I think it’s almost limitless. Our brains are general systems, intelligent systems, so I think it’s almost limitless what we can potentially do with them. And then the other thing is our extreme adaptability. I think it’s going to be okay in terms of there’s going to be a lot of change, but look where we are now without effectively our hunter-gatherer brains.
Well, what gives me hope is that I think our almost limitless ingenuity, first of all. I think the best of us and the best human minds are incredible. And I love meeting and watching any human that’s the top of their game, whether that’s sport or science or art, it’s just nothing more wonderful than that, seeing them in their element in flow. I think it’s almost limitless. Our brains are general systems, intelligent systems, so I think it’s almost limitless what we can potentially do with them. And then the other thing is our extreme adaptability. I think it’s going to be okay in terms of there’s going to be a lot of change, but look where we are now without effectively our hunter-gatherer brains.
How is it we can cope with the modern world, right? Flying on planes, doing podcasts, playing computer games and virtual simulations. I mean, it’s already mind blowing given that our mind was developed for hunting buffaloes on the tundra. And so I think this is just the next step, and it’s actually kind of interesting to see how society’s already adapted to this mind blowing AI technology we have today already. It’s sort of like, “Oh, I talked to chat bots. Totally fine.”
Lex Fridman
And it’s very possible that this very podcast activity, which I’m here for, will be completely replaced by AI. I’m very replaceable and I’m waiting for it.
And it’s very possible that this very podcast activity, which I’m here for, will be completely replaced by AI. I’m very replaceable and I’m waiting for it.
Demis Hassabis
Not to the level that you can do it, Lex, I don’t think.
Not to the level that you can do it, Lex, I don’t think.
Lex Fridman
Thank you. That’s what we humans do to each other. We compliment.
Thank you. That’s what we humans do to each other. We compliment.
Demis Hassabis
Exactly.
Exactly.
Lex Fridman
All right. And I’m deeply grateful for us humans to have this infinite capacity for curiosity, adaptability, like you said, and also compassion and ability to love.
All right. And I’m deeply grateful for us humans to have this infinite capacity for curiosity, adaptability, like you said, and also compassion and ability to love.
Demis Hassabis
Exactly.
Exactly.
Lex Fridman
All of those human things.
All of those human things.
Demis Hassabis
All the things that are deeply human.
All the things that are deeply human.
Lex Fridman
Well, this is a huge honor, Demis. You are one of the truly special humans in the world. Thank you so much for doing what you do and for talking today.
Well, this is a huge honor, Demis. You are one of the truly special humans in the world. Thank you so much for doing what you do and for talking today.
Demis Hassabis
Well, thank you very much, Lex.
Well, thank you very much, Lex.
Lex Fridman
Thanks for listening to this conversation with Demis Hassabis. To support this podcast, please check out our sponsors in the description and consider subscribing to this channel. And now let me answer some questions and try to articulate some things I’ve been thinking about. If you’d like to submit questions including in audio and video form, go to lexfridman.com/ama. I got a lot of amazing questions, thoughts and requests from folks. I’ll keep trying to pick some randomly and comment on it at the end of every episode. I got a note on May 21st this year that said, “Hi, Lex. 20 years ago today, David Foster Wallace delivered his famous This is Water speech at Kenyon College. What do you think of this speech?
Thanks for listening to this conversation with Demis Hassabis. To support this podcast, please check out our sponsors in the description and consider subscribing to this channel. And now let me answer some questions and try to articulate some things I’ve been thinking about. If you’d like to submit questions including in audio and video form, go to lexfridman.com/ama. I got a lot of amazing questions, thoughts and requests from folks. I’ll keep trying to pick some randomly and comment on it at the end of every episode. I got a note on May 21st this year that said, “Hi, Lex. 20 years ago today, David Foster Wallace delivered his famous This is Water speech at Kenyon College. What do you think of this speech?
David Foster Wallace
Well, first, I think this is probably one of the greatest and most unique commencement speeches ever given, but of course, I have many favorites, including the one by Steve Jobs. And David Foster Wallace is one of my favorite writers and one of my favorite humans. There’s a tragic honesty to his work, and it always felt as if he was engaging in a constant battle with his own mind, and the writing, his writing were kind of his notes from the front lines of that battle. Now onto the speech, let me quote some parts. There’s of course the parable of the fish and the water that goes, there are these two young fish swimming along and they happen to meet an older fish swimming the other way who nods at them and says, “Morning boys, how’s the water?” And the two young fish swim on for a bit and then eventually one of them looks over at the other and goes, “What the hell is water?” In the speech, David Foster Wallace goes on to say, “The point of the fish story is merely that the most obvious important realities are often the ones that are hardest to see and talk about. Stated as an English sentence of course, this is just the banal platitude, but the fact is that in the day to day trenches of adult existence, banal platitudes can have a life or death importance, or so I wish to suggest to you in this dry and lovely morning.” I have several takeaways from this parable and the speech that follows. First, I think we must question everything, and in particular, the most basic assumptions about our reality, our life, and the very nature of existence, and that this project is a deeply personal one. In some fundamental sense, nobody can really help you in this process of discovery.
The call to action here, I think, from David Foster Wallace as he puts it, is to ” To be just a little less arrogant, to have just a little more critical awareness about myself and my certainties because a huge percentage of the stuff that I tend to be automatically certain of is it turns out totally wrong and deluded.” All right, back to me. Lex speaking. Second takeaway is that the central spiritual battles of our life are not fought on a mountain top somewhere at a meditation retreat, but it’s fought in the mundane moments of daily life.
Third takeaway is that we too easily give away our time and attention to the multitude of distractions that the world feeds us, the insatiable black holes of attention. David Foster Wallace’s call to action in this case is to be deeply aware of the beauty in each moment and to find meaning in the mundane. I often quote David Foster Wallace in his advice that the key to life is to be unborable, and I think this is exactly right. Every moment, every object, every experience when looked at closely enough contains within it infinite richness to explore. And since Demis Hassabis of this very podcast episode and I are such fans of Richard Feynman, allow me to also quote Mr. Feynman on this topic as well.
“I have a friend who’s an artist and has sometimes taken a view which I don’t agree with very well. He’ll hold up a flower and say, “Look how beautiful it is,” and I’ll agree. Then he says, “I as an artist can see how beautiful this is, but you as a scientist take this all apart and it becomes a dull thing,” and I think that’s kind of nutty. First of all, the beauty that he sees is available to other people and to me too, I believe. Although I may not be quite as refined aesthetically as he is, I can appreciate the beauty of a flower. At the same time, I see much more about the flower than he sees. I could imagine the cells in there, the complicated actions inside which also have beauty. I mean, it’s not just beauty at this dimension at one centimeter, there’s also beauty at the smaller dimensions.”
“Their inner structure, also the processes, the fact that the colors and the flower evolved in order to attract the insects to pollinate it is interesting. It means that the insects can see the color. It adds a question. Does this aesthetic sense also exist in lower forms? Why is it aesthetic? All kinds of interesting questions, which the science knowledge only adds to the excitement, the mystery, and the awe of a flower. It only adds.”
All right, back to David Foster Wallace’s speech. He has a great story in there that I particularly enjoy. It goes, there are these two guys sitting together in a bar in the remote Alaskan wilderness. One of the guys is religious, the other is an atheist, and the two are arguing about the existence of God with that special intensity that comes after about the fourth beer. And the atheist says, “Look, it’s not like I don’t have actual reasons for not believing in God. It’s not like I haven’t ever experimented with the whole God and prayer thing. Just last month, I got caught away from the camp in that terrible blizzard, and I was totally lost and I couldn’t see a thing and it was 50 below. So I tried it. I fell in my knees in the snow and cried out, ‘Oh God, if there is a God, I’m lost in this blizzard and I’m going to die if you don’t help me.”
And now back in the bar, the religious guy looks at the atheist all puzzled, “Well, then you must believe now?” he says, “After all, there you are, alive.” The atheist just rolls his eyes. “No, man. All that happened was a couple of Eskimos happened to be wandering by and showed me the way back to the camp.” All this, I think, teaches us that everything is a matter of perspective and that wisdom may arrive if we have the humility to keep shifting and expanding our perspective on the world. Thank you for allowing me to talk a bit about David Foster Wallace. He’s one of my favorite writers and he’s a beautiful soul.
Education and research
If I may, one more thing I wanted to briefly comment on. I find myself to be in this strange position of getting attacked online often from all sides, including being lied about sometimes through selective misrepresentation, but often through downright lies. I don’t know how else to put it. This all breaks my heart, frankly, but I’ve come to understand that it’s the way of the internet and the cost of the path I’ve chosen. There’s been days when it’s been rough on me mentally. It’s not fun being lied about, especially when it’s about things that are usually for a long time have been a source of happiness and joy for me. But again, that’s life.
I’ll continue exploring the world of people and ideas with empathy and rigor, wearing my heart on my sleeve as much as I can. For me, that’s the only way to live. Anyway, a common attack on me is about my time at MIT and Drexel, two great universities I love and have tremendous respect for. Since a bunch of lies have accumulated online about me on these topics, to a sad and at times hilarious degree, I thought I would once more state the obvious facts about my bio for the small number of you who may care. TLDR, two things. First, as I say often, including in a recent podcast episode that somehow was listened to by many millions of people, I proudly went to Drexel University for my bachelor’s, master’s, and doctorate degrees.
Second, I am a research scientist at MIT and have been there in a paid research position for the last 10 years. Allow me to elaborate a bit more on these two things now, but please skip if this is not at all interesting. So like I said, a common attack on me is that I have no real affiliation with MIT. The accusation, I guess, is that I’m falsely claiming an MIT affiliation because I taught a lecture there once. Nope, that accusation against me is a complete lie. I have been at MIT for over 10 years in a paid research position from 2015 to today. To be extra clear, I’m a research scientist at MIT working in LIDS, the Laboratory for Information and Decision Systems in the College of Computing. For now, since I’m still at MIT, you can see me in the directory and on the various lab pages.
I have indeed given many lectures at MIT over the years, a small fraction of which I posted online. Teaching for me always has been just for fun and not part of my research work. I personally think I suck at it, but I have always learned and grown from the experience. It’s like Feynman spoke about, if you want to understand something deeply, it’s good to try to teach it. But like I said, my main focus has always been on research. I published many peer-reviewed papers that you can see in my Google Scholar profile. For my first four years at MIT, I worked extremely intensively. Most weeks were 80 to 100-hour work weeks. After that, in 2019, I still kept my research scientist position, but I split my time taking a leap to pursue projects in AI and robotics outside MIT and to dedicate a lot of focus to the podcast.
As I’ve said, I’ve been continuously surprised just how many hours preparing for an episode takes. There are many episodes of the podcast for which I have to read, write, and think for 100, 200 or more hours across multiple weeks and months. Since 2020, I have not actively published research papers. Just like the podcast, I think it’s something that’s a serious full-time effort. But not publishing and doing full-time research has been eating at me because I love research and I love programming and building systems that test out interesting technical ideas, especially in the context of human-AI or human-robot interaction. I hope to change this in the coming months and years.
What I’ve come to realize about myself is if I don’t publish or if I don’t launch systems that people use, I definitely feel like a piece of me is missing. It legitimately is a source of happiness for me. Anyway, I’m proud of my time at MIT. I was and am constantly surrounded by people much smarter than me, many of whom have become lifelong colleagues and friends. MIT is a place I go to escape the world, to focus on exploring fascinating questions at the cutting edge of science and engineering. This, again, makes me truly happy and it does hit pretty hard on a psychological level when I’m getting attacked over this. Perhaps I’m doing something wrong. If I am, I will try to do better.
In all this discussion of academic work, I hope you know that I don’t ever mean to say that I’m an expert at anything. In the podcast and in my private life, I don’t claim to be smart. In fact, I often call myself an idiot and mean it. I try to make fun of myself as much as possible, and in general to celebrate others instead. Now to talk about Drexel University, which I also love, am proud of and am deeply grateful for my time there. As I said, I went to Drexel for my bachelor’s, master’s, and doctorate degrees in computer science and electrical engineering. I’ve talked about Drexel many times, including, as I mentioned, at the end of a recent podcast, the Donald Trump episode. funny enough, that was listened to by many millions of people where I answered a question about graduate school and explained my own journey at Drexel and how grateful I am for it.
If it’s at all interesting to you, please go listen to the end of that episode or watch the related clip. At Drexel, I met and worked with many brilliant researchers and mentors from whom I’ve learned a lot about engineering, science and life. There are many valuable things I gained from my time at Drexel. First, I took a large number of very difficult math and theoretical computer science courses. They taught me how to think deeply and rigorously, and also how to work hard and not give up even if it feels like I’m too dumb to find a solution to a technical problem.
Second, I programmed a lot during that time, mostly C, C++. I programmed robots, optimization algorithms, computer vision systems, wireless network protocols, multimodal machine learning systems, and all kinds of simulations of physical systems. This is where I really developed a love for programming, including, yes, Emacs And the Kinesis keyboard. I also, during that time, read a lot, I played a lot of guitar, wrote a lot of crappy poetry, and trained a lot in judo and jiu-jitsu, which I cannot sing enough praises to. Jiu-jitsu humbled me on a daily basis throughout my twenties, and it still does to this very day whenever I get a chance to train.
Anyway, I hope that the folks who occasionally get swept up in the chanting online crowds that want to tear down others don’t lose themselves in it too much. In the end, I still think there’s more good than bad in people. But we’re all each of us a mixed bag. I know I am very much flawed. I speak awkwardly. I sometimes say stupid shit. I can get irrationally emotional. I can be too much of a dick when I should be kind. I can lose myself in a biased rabbit hole before I wake up to the bigger, more accurate picture of reality. I’m human and so are you for better or for worse, and I do still believe we’re in this whole beautiful mess together. I love you all.
Transcript for DHH: Future of Programming, AI, Ruby on Rails, Productivity & Parenting | Lex Fridman Podcast #474
This is a transcript of Lex Fridman Podcast #474 with DHH.
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It sometimes feels like we’re barely better off. Web pages aren’t that different from what they were in the late ’90s, early 2000s. They’re still just forms. They still just write to databases. A lot of people, I think, are very uncomfortable with the fact that they are essentially crud monkeys. They just make systems that create, read, update, or delete rows in a database and they have to compensate for that existential dread by over complicating things. That’s a huge part of the satisfaction of driving a race car is driving in at the edge of adhesion, as we call it, where you’re essentially just a tiny movement away from spinning out. Doesn’t take much. Then the car starts rotating. Once it starts rotating, you lose grip and you’re going for the wall. That balance of danger and skill is what’s so intoxicating.
He is a New York Times best-selling author together with his co-author, Jason Fried, of four books, Rework, Remote, Getting Real, and It Doesn’t Have To Be Crazy At Work. And on top of that, he’s also a race car driver, including being a class winner at the legendary twenty-four-hour Le Mans race. This is the Lex Fridman podcast. To support it, please check out our sponsors in the description and consider subscribing to this channel. And now, dear friends, here’s DHH.
So I tried to do that and it would take like two hours to print this game into the Amstrad, and of course I’d make some spelling mistake along the way and something wouldn’t work and the whole thing… I wasn’t that good of English, I was born in Denmark. So I was really trying to get into it because I wanted all these games and I didn’t have the money to buy them. And I tried quite hard for quite a while to get into it, but it just never clicked. And then I discovered the magic of piracy, and after that I basically just took some time off from learning to program because well now suddenly I had access to all sorts of games. So that was the first attempt around six, seven years old. And what’s funny is I remember these fragments. I remember not understanding the purpose of a variable.
If there’s a thing and you assign something, why would you assign another thing to it? So for some reason, I understood constants. Constants made sense to me, but variables didn’t. Then maybe I’m 11 to 12, I’ve gotten into the Amiga at this point. The Amiga, by the way, still perhaps my favorite computer of all time. I mean, this is one of those things where people get older and they’re like, oh, the music from the ’80s was amazing. To me, even as someone who loves computers and love new computers, the Amiga was this magical machine that was made by the same company that produced the Commodore 64 and I got the Amiga 500 I think in ’87.
And this time I tried harder. I got into conditionals, I got into loops, I got into all these things and still, I couldn’t do it. And on the second attempt, I really got to the point of maybe I’m not smart enough. Maybe it’s too much math. I like math in this sort of superficial way. I don’t like it in the deep way that some of my perhaps slightly nerdier friends did, who I had tremendous respect for, but I’m not that person. I’m not the math geek who’s going to figure it all out. So after that attempt with EasyAMOS and failing to even get… I don’t even think I completed one even very basic game. I thought, programming’s just not for me. I’m going to have to do something else. I still love computers. I still love video games.
I actually at that time had already begun making friends with people who knew how to program, who weren’t even programming EasyAMOS, they were programming with freaking Assembly. And I would sit down and just go, the moves and the memories and the copies, how do you even do this? I don’t even understand how you go from this to Amiga demos for example. That was the big thing with the Amiga. It had this wonderful demo scene in Europe. It’s this really interesting period of time in the Amiga’s history where you had all these programmers spread out mostly all over Europe who would compete on graphic competitions where you could probably bring one of these different-
I didn’t learn programming then and I wouldn’t learn programming until much later, until I was almost 20 years old. The bulletin board systems existed in this funny space where they were partly a service to the demo scenes allowing all these demo groups to distribute their amazing demos. And then it was also a place to trade piracy software, pirated software. And I ended up starting one of those when I was 14 years old in my tiny little bedroom in Copenhagen. I had my, at that point, Amiga 4000. I had three telephone lines coming in to my tiny room.
And I was making money at that time doing newspaper delivery. I had to do that for a month to afford one game. I liked video games way too much to wait a month just to get one game. So piracy was just the way you did it, and that was how I got into running this bulletin board system, being part of the demo scene, being part of the piracy scene to some extent. And then also at some point realizing, oh, you can actually also make money on this and this can fund buying more phone lines and buying more modems and buying more Amigas. Oh yeah, that was one of the demo parties. These were amazing things.
All the other experiences I had with programming was I’d spend hours typing something in, I click run and it wouldn’t work, and I’d get an error message that made no sense to me as a kid either at six or seven or at 12. And here I am sitting in front of a computer connected to the internet and I’m making text blink. I’m making it larger. I’m turning it into an H1 or an H2. And these guys out here, we just did it for like an hour and a half and suddenly I go, oh, I can make things for the internet that someone in Germany can be able to access and see, and I don’t have to ask anyone for permission? This is super cool. I’ve got to do more of this. So I got into the internet. I got into working with HTML, and I still had all these friends from these demo parties, and I started working with them on creating gaming websites.
I’d rather buy the video games, I’d review them. This was another good way of getting new video games was to walk down to some store and say like, hey, I’m a journalist. I’m like this fifteen-year-old kid and they’re looking at me. “You’re a journalist?” “Yeah, can I borrow some games?” Because this was when games moved on to the PlayStation and these other things. You couldn’t just as easily pirate, at least not at first. So I went down there, did all that, and that started the journey of the internet for me. I started working on these gaming websites, working with programmers, figuring out that I could do something, I could work on the HTML part.
It’s not really programming, but it kind of smells like it. You’re talking to a computer, you’re making it put text on the screen and you’re communicating with someone halfway around the world. So that became my pathway back into programming, and then slowly I picked up more and more of it. First website I did with someone, one of these programmers from the demo scene that was dynamic was asp.net. It wasn’t even actually called .net. That was what we started on, and then we moved on to PHP and PHP was when I finally got it, when it finally clicked, when conditionals and loops and variables and all of that stuff started to make sense enough to me that I thought, I can do this.
How did we lose the sensibilities that allowed us to not just work this way but get new people into the industry to give them those success experiences that I had adding a freaking blink tag to an HTML page, FTPing a PHP page to an Apache web server without knowing really anything about anything? Without knowing anything about frameworks, without knowing anything about setup. All of that stuff have really taken us to a place where it sometimes feels like we’re barely better off. Web pages aren’t that different from what they were in the late ’90s, early 2000s. They’re still just forms. They still just write to databases.
A lot of people, I think are very uncomfortable with the fact that they are essentially crud monkeys. They just make systems that create, read, update or delete rows in a database, and they have to compensate for that existential dread by over-complicating things. Now, that’s a bit of a character. There’s more to it and there’s things you can learn for more sophisticated ways of thinking about this, but there’s still an ideal here, which is why I was so happy you had Pieter Levels on because he still basically works like this. And I look at that and go, man, that’s amazing.
I used version control for myself, and then I thought, do you know what? Designers, they’re probably not smart enough to figure out CBS and therefore I was just like, no, no, no, you just FTP it up. You just FTP it. They knew how to do FTP. And then after the third time I had overwritten their changes I was like, goddamn it, I guess I’ve got to teach Jason CBS to not do that again. But I think there’s still way more truth to the fact that we can work the way we did in the ’90s, work the way Pieter works today even in the team context, and that we’ve been far too willing to hand over far too much of our developer ergonomics to the merchants of complexity.
I mean, I was there, there was a lot of things that sucked. And if we can somehow find a way to combine the advantages and advances we’ve had over the past 20 years with that ease of developer ergonomics, we can win. No build is a rejection of the part of web development I’ve hated the most in the past 10, 15 years, which is the JavaScript scene. And I don’t say that as someone who hates JavaScript. I mean, I often joke that JavaScript is my second favorite program language. It’s a very distant second. Ruby is by far and away number one, but I actually like JavaScript. I don’t think it’s a bad language. It gets a lot of flak. People add a string of two plus a one and it gives something nonsense, and I just go, yeah, but why would you do that? Just don’t do that. The language is actually quite lovely, especially the modern version.
ES6, that really introduced a proper class syntax to it, so I could work with JavaScript in many of the same ways that I love working with Ruby. It made things so much better. But in the early 2010s until quite recently, all of that advancement happened in pre-processing, happened in build pipelines. The browsers couldn’t speak a dialect of JavaScript that was pleasant to work with so everyone started pre-compiling their JavaScript to be able to use more modern ways of programming with a browser that was seen as stuck with an ancient version of JavaScript that no one actually wanted to work with. And that made sense to me, but it was also deeply unpleasant. And I remember thinking during that time, the dark ages as I refer to them with JavaScript, that this cannot be the final destination. There’s no way that we have managed to turn the internet into such an unpleasant place to work where I would start working on a project in JavaScript using Webpack and all of these dependencies, and I would put it down for literally five minutes and the thing wouldn’t compile anymore.
The amount of churn that the JavaScript community, especially with its frameworks and its tooling, went through in the decade from 2010 to 2020 was absurd. And you had to be trapped inside of that asylum to not realize what an utterly perverse situation we had landed ourselves in. Why does everything break all the time? I mean, the joke wouldn’t be just that the software would break, that would annoy me personally. But then I’d go on Hacker News and I’d see some thread on the latest JavaScript release of some framework, and the thread would be like, someone would ask, well, aren’t we using the thing we just used three months ago? And people would be like, that thing is so outdated. That’s so three months ago. You’ve got to get with the new program, we’re completely rewriting everything for the [inaudible 00:24:07] time and anything you’ve learned in the framework you’ve been spending the last amount of time on, it’s all useless. You’ve got to throw everything out and you’ve got to start over. Why aren’t you doing it stupid idiot?
Oh yeah, well, I’m a front-end whatever engineer. And suddenly the web developer was no longer one person. It was 15 different roles. That in itself injected a ton of complexity. But I also want to give it the bold case here, which was that some of that complexity was necessary to get to where we are today, that the complexity was a bridge. It wasn’t the destination, but we had to cross that bridge to get to where we are today where browsers are frankly incredible. The JavaScript you can write in a text file and then serve on a web server for a browser to ingest is amazing. It’s actually a really good experience. You don’t need any pre-processing. You could just write text files, send them to a browser, and you have an incredible development-
Maybe it doesn’t need it, but it certainly benefits from it. And of all the things that are wrong with monopoly formation in technology, Chrome is the last thing, and this is why I get so frustrated sometimes about the monopoly fight, that there are real problems and we should be focusing on the premier problems first like the toll booths on our mobile phones. There are far bigger problems. It’s not the open web, it’s not the tools that we use to access the open web. If I don’t want to use Chrome, if my customers of my businesses that run on the internet don’t want to use Chrome, they don’t have to. We’re never forced to go through it. The open internet is still open. So I think it’s a real shame that the DOJ has chosen to pursue Google in this way. I do think there are other things you can nail Google for, their ad monopoly maybe, or the shenanigans they’ve done in controlling both sides of the ad ledger, that they both control the supply and the demand.
There are problems. Chrome, isn’t it. And you end up making the web much worse. And this is the thing we’ve always got to remember when we think about legislation, when we think about monopoly fights is you may not like how things look today and you may want to do something about it, but you may also make it worse. The good intentions behind the GDPR in Europe currently has amounted to what? Cookie banners that everyone on the internet hates, that helps no one do anything better, anything more efficient, that saves no privacy in any way, shape or form, has been a complete boondoggle that has only enriched lawyers and accountants and bureaucrats.
There’s this one piece of legislation that’s now I think 10 or 12 years old. It’s complete failure on every conceivable metric. Everyone hates it universally, yet we can’t seem to do anything about it. That’s a bankruptcy declaration for any body of bureaucrats who pretend or portend to make things better for not just citizens but people around the world. This is the thing that really gets me about cookie banners, too. It’s not just the EU, it’s the entire world. You can’t hide from cookie banners anywhere on this planet. If you go to goddamn Mars on one of Elon’s rockets and you try to access a webpage, you’ll still see a cookie banner. No one in the universe is safe from this nonsense.
Now, I don’t buy that, and the reason I don’t buy that is because on Android, you are actually allowed to ship a different browser that has a browser engine that’s not the same as Chrome. Unlike an iOS where if you want to ship a browser, Chrome, for example, ships for iOS, but it’s not Chrome, it’s Safari wrapped in a dress, and every single alternative browser on iOS have to use the Safari web engine. That’s not competition. That’s not what happened on Android.
Again, I think there are some nuances to it, but if you zoom out and you look at all the problems we have with Big Tech, Chrome is not it. Chrome One unmerits. I begrudgingly have switched to Chrome on that realization alone. As a web developer, I just prefer it. I like Firefox in many ways. I like the ethos of it, but Chrome is a better browser than Firefox, full stop.
All the way back in 2001, I had been working on these gaming websites in PHP for essentially 18 months at that point. No one had been paying me to do code in that regard, and I connect with Jason Fried over an email sent from Copenhagen, Denmark to Chicago, Illinois to a person who didn’t know who I was. I was just offering solicited advice. Jason had asked a question on the internet, and I had sent him the answer and he was asking me PHP, and I’d sent him the answer to that question and we started talking and then we started working, which by the way is a miracle of what the internet can allow. How can a kid in Copenhagen who’s never met this guy in Chicago connect just over email and start working together? By the way, we’re still working together now 24 years later. That’s incredible. But we started working together and we started working together on some client projects.
Jason would do the design, 37signals would do the design. I would bring the programming PHP. And after we work on I think two or three client projects together in PHP, we kept hitting the same problem that whenever you work with a client, you start that project off an email, “Oh, yeah, let’s work together. Here’s what we’re building.” And you start trading more and more emails and before a few weeks have passed, you got to add someone to the project. They don’t have the emails, they don’t have the context. You send them, “Where’s the latest file?” “Oh, I’ve uploaded it on the FTP. It’s like final, final V06 2.0.” Right? That’s the one to get. It’s just a mess, a beautiful mess in some ways. It’s a mess that still runs the vast majority of projects to this day. Email is the lowest common denominator. That’s wonderful.
But we had dropped the ball a couple of times in serious ways with customers and we thought we can do better. We know how to make web applications. Can’t we just make a system that’s better than email for managing projects? It can’t be that hard. We’ve been doing blogs, we’ve been doing to-do lists. Let’s put some of these things together and just make a system where everything that anyone involved in the project needs is on one page. And it has to be simple enough that I’m not going to run a seminar teaching you how to use the system. I’m just going to give you the login code. You’re going to jump into it. So that’s Basecamp. When we started working on Basecamp, I, for the first time in the experience I had with Jason had the freedom of technology choice. There was no client telling me, “Yeah, PHP, that sounds good. We know PHP. Can you build it in PHP?”
I had free reins. At that time I’d been reading IEEE magazine and a couple of other magazines back from the early 2000s where Dave Thomas and Martin Fowler had been writing about programming patterns and how to write better code. These two guys in particular were both using Ruby to explain their concepts because Ruby looked like pseudocode. Whether you were programming in C or Java or PHP, all three constituencies could understand Ruby because it basically just reads like English. So these guys were using Ruby to describe the concepts, and first of all, I would read these articles for just the concepts they were explaining and I’d be like, “What is this program language?” I mean, I like the concept you’re explaining, but I also want to see the programming language. Why haven’t I heard of this?
So I started looking into Ruby and I realized at that time, Ruby might not be known by anyone, but it’s actually been around for a long time. Matz, the Japanese creator of Ruby, had started working on Ruby back in ’93 before the internet was even a thing. And here I am in 2003, 10 years later, picking up what seems like this hidden gem that’s just laying in obscurity and plain sight. But Dave Thomas and Martin Fowler, I think successfully put me and a handful of other people on the trail of a programming language that hadn’t been used much in the west, but could be. So I picked up Ruby and I thought, this is very different. First of all, where are all the semicolons? I’d been programming in PHP, in ASP, I’d even done some Pascal. I’d looked at some C. There were semicolons everywhere.
That was the first thing that struck me is where are the damn semicolons? And I started thinking, actually, why do we have semicolons in programming? They’re to tell the interpreter that there’s a new line of instructions, but I don’t need them as a human. Oh, someone is looking out for the human here, not for the machine. So that really got me interested. And then I thought to myself, do you know what? I know PHP quite well. I’m not an amazing programmer. I haven’t been working in programming for all that long, but maybe I can figure it out. I’m going to give myself two weeks. I’m going to write a proof of concept where I talked to a database, I pulled some records, I format them a bit, and I display them on an HTML page. Can I figure that out in a couple of weeks? It took about one weekend and I was completely mesmerized. I was completely mind blown because Ruby was made for my brain like a perfect tailored glove by someone I’d never met. How is this even possible?
Python to me, I hope I don’t offend people too much. I’ve said this before, it’s just it’s ugly and it’s ugly in its base because it’s full of superfluous instructions that are necessary for legacy reasons of when Guido made Python back in ’87 that are still here in 2025, and my brain can’t cope with that. Let me give you a basic example. When you make a class in Python, the Initializer method, the starting method is def, okay, fair enough. That’s actually the same as Ruby. D-E-F definition of a method. Then it is underscore not one, underscore, two, init, underscore underscore, parentheses start, self, comma, and then the first argument.
That in itself is actually also a major part. If the human doesn’t need the additional characters, we’re not just going to put them in because it’d be nicer to parse for the computer. We’re going to get rid of the semicolons, we’re going to get rid of the parentheses, we’re going to get rid of the underscores, we’re going to get rid of all that ugliness, all the line noise and boil it down to its pure essentials and at the same time, we’re not going to abbreviate. This is a key difference in the aesthetics between Ruby and Python as well. Init is shorter to type, it’s only five characters. Initialize is a lot longer, but it looks a lot better and you don’t type it very often, so you should look at something pretty. If you don’t have to do it all the time, it’s okay that it’s long.
Those kinds of aesthetic evaluations are rife all over the Ruby language. But let me give you an even better example. The if conditional, that’s the bedrock of all programming languages. They have the if conditional, if you take most programming languages, they’ll have if, that’s basically the same in almost every language, space, start parentheses, we all do that. And then you have perhaps, let’s say you’re calling a object called user. is admin, close parentheses, close parentheses, start brackets, and here’s what we’re going to do if the user’s an admin, right? That would be a normal programming language. Ruby doesn’t do it like that. Ruby boils almost all of it away. We start with the if. Okay, that’s the same, no parentheses necessary because there’s no ambiguity for the human to distinguish that the next part is just a single statement. So you do if, space, user dot admin, question mark, no open brackets, no parentheses, no nothing. Next open line, here’s your conditional.
That question mark means nothing to the computer, but it means something to the human. Ruby put in the predicate method style purely as a communication tool between humans. It’s actually more work for the interpreter to be able to see that this question mark is there. Why is this question mark in here? Because it just reads so nicely. If user admin question mark, that’s a very human phrase, but it gets better. You can turn this around. You can have your statement, you want to execute before the conditional. You can do user.upgrade, say you’re calling an upgrade method on a user, space, if, space, user.admin question mark. We do the thing, if the thing is true, instead of saying if the thing is true, do the thing. But it gets even better. This is why I love this example with the conditional because you can keep diving into it. So let’s flip it around. user.downgrade if exclamation point, not user.admin, that’d be a typical way of writing it. Ruby goes that exclamation point is light noise. Why do we have if and then an exclamation point that’s ugly? We could do user.downgrade unless user.admin question mark.
His view of humanity was programmers at the average are stupid creatures. They cannot be trusted with sophisticated programming languages because they’re going to shoot their foot off or their hand off. And that would be kind of inconvenient to the regional development office of a mid-tier insurance company writing code that has to last for 20 years. Now it’s actually a very Thomas Sowell view of constrained capacity in humans that I’ve come to appreciate much later in life. But it’s also a very depressing view of programmers that there are just certain programmers who are too dumb to appreciate code poetry. They’re too ignorant to learn how to write it well. We need to give them a sandbox where they just won’t hurt themselves too much.
Matz went the complete opposite direction. He believes in humanity. He believes in the unlimited capacity of programmers to learn and become better so much so that he’s willing to put the stranger at his own level. This is the second part I truly appreciate about Ruby. Ruby allows you to extend base classes. You know how we just talked about five dot times is a way to iterate over a statement five times. That five is obviously a base class, it’s a number. Do you know what? You can add your own methods to that? I did extensively. In Rails, we have something called active support, which is essentially my dialect of Ruby for programming web applications. I’ll give you one example. I’ve added a method called Days to the Number. So if you do five .days, you get five days in seconds because seconds is the way we set cache expiration times and other things like that. So you can say cache expires in five .days and you’re going to get whatever-
He trusted me as a complete stranger from Denmark who he’d never met to mess with his beautiful story. That level of trust is essentially unheard of. I know there are other program languages that allow things with macros and so forth, but none do it in a way like Ruby does it. None does it with an articulated vision of humanity, a trust in humanity like Matz does. That is the opposite end of the spectrum of Java.
There was almost a sense of divine inspiration possible in wherever Matz was writing that initial version of Ruby that transcended time to such a degree that no one has still even begun to reach it. This is the other thing I always find fascinating. I generally believe in the efficient market theory that if someone comes up with a better mousetrap or better idea, others, they’ll eventually copy them to such an extent that perhaps the original mousetrap is no longer even remembered. No one has been able to copy that essence of Ruby. They borrowed elements and that’s totally fine, but Ruby still stands taller than everyone else on these metrics, on this trust in humanity and programmers.
Now you’ve set up a dependency between users and comments that will give you a whole host of access and factory methods for users to be able to own comments, to create comments, to update comments. In that line alone ” has many” looks like a keyword. It looks like it’s part of the Ruby language. That’s metaprogramming. When Rails is able to add these elements to how you define a class, and then that runs code that adds a bunch of methods to the use of class, that’s Metaprogramming.
And when Metaprogramming is used in this way, we call it domain-specific languages. You take a generic language like Ruby and you tailor it to a certain domain like describing relationships in a database at a object level. This is one of those early examples where you can do, user has many comments, belongs underscore two space colon account. Now you’ve set up a one-to-one relationship before we had a one-to-many relationship. Rails is rife with all these kinds of domain-specific languages where at sometimes it doesn’t even look like Ruby. You can’t identify Ruby keywords. You can just identify what looks like keywords in its own programming language. Now again, I know that Lisp and others also do this stuff. They just do it with the maximum amount of line noise that can ever be crammed into a programming language and Ruby does it at a level where you cannot tell my metaprogramming from Matz’s keywords and with zero line noise.
We pulled TypeScript out of Turbo, one of the front-end frameworks that we have because I tried to write to Metaprogramming in TypeScript and I was just infuriated. I don’t want that experience, but I also don’t want it from an aesthetic point of view. I hate repetition. We’ve just talked about how much I love that Ruby boils all of these expressions.
First of all, I don’t write code with tools, I write them with text editors. I chisel them out of the screen with my bare hands. I don’t auto-complete. This is why I love Ruby so much, and this is why I continue to be in love with the text editor rather than the IDE. I don’t want an IDE. I want my fingers to have to individually type out every element of it, because it will force me to stay in the world where Ruby is beautiful. Because as soon as it gets easy to type a lot of boilerplate, well, guess what? You can have a lot of boilerplate. Every single language basically that has great tooling support has a much higher tolerance for boilerplate because the thinking is, well, you’re not typing it anyway, you’re just auto- completing it. I don’t want that at all. I want something where the fabric I’m working in is just a text file, there’s nothing else to it. So these things play together. There’s the aesthetic part, there’s the tooling part, there’s the meta-programming part.
There’s the fact that Ruby’s ethos of duck typing … I don’t know if you’ve heard that term before. It’s essentially not about, can I call this method if an object is of a certain class? Can I call this method if the method responds? It’s very out of small talk in that regard. You don’t actually check whether that class has the method, which allows you to dynamically add methods at runtime and do all sorts of really interesting things that underpin all the beautiful meta-programming that we do in Ruby. I don’t want to lose any of that and I don’t care for the benefits. One of the benefits I’ve seen touted over and over again is that it’s much easier to write correct software. You’re going to have fewer bugs. You’re going to have less Null Pointer Exceptions, you’re going to have less of all of this stuff. Yeah, I don’t have any of that. It’s just not something that occurs in my standard mode of operation. I’m not saying I don’t have bugs, of course I do, but I catch those bugs with unit testing, with integration testing.
Those are the kinds of precautions that will catch logical bugs, things that compile but are wrong, along with the uncompilable stuff. So I’ve never been drawn into this world, and part of it is because I work on a certain class of systems. I fully accept that. If you’re writing systems that have five, 10, 50 million lines of code with hundreds, thousands or tens of thousands of programmers, I fully accept that you need different methods. What I object to is the idea that what’s right for a code base of 10 million lines of code, with 100,000 programmers working on it, is also the same thing I should be using in my bedroom to create Basecamp, because I’m just a single individual. That’s complete nonsense. In the real world, we would know that that makes no sense at all. That you don’t, I don’t know, use your Pagani to go pick up groceries at Costco. It’s a bad vehicle for that. It just doesn’t have the space, you don’t want to muddy the beautiful seats. You don’t want to do any of those things.
We know that certain things that are very good in certain domains don’t apply to all. In programming languages, it seems like we forget that. Now, to be fair, I also had a little bit perhaps of a reputation of forgetting that. When I first learned Ruby, I was so head over heels in love with this programming language that I almost found it unconceivable that anyone would choose any other programming language at all to write web applications. I kind of engaged the evangelism of Ruby on Rails in that spirit as a crusade, as, I just need to teach you the gospel. I just need to show you this conditional code that we just talked about, and you will convert at the point of a sharp argument. Now, I learned that’s not the way, and part of the reason it’s not the way is that programmers think differently. Our brains are configured differently. My brain is configured perfectly for Ruby, perfectly for a dynamically duck-typed language that I can chisel code out of a text editor with.
Other people need the security of an IDE. They want the security of classes that won’t compile unless you call the methods on it. I have come to accept that, but most programmers don’t. They’re still stuck in essentially, I like static typing. Therefore, static typing is the only way to create reliable, correct systems. Which is just such a mind-blowing, to be blunt, idiotic thing to say in the face of mountains of evidence to the contrary. This is one of the reasons I’m so in love with Shopify as the flagship application for Ruby on Rails. Shopify exists at a scale that most programmers will never touch. On Black Friday, I think Shopify did one million requests per second. That’s not one million requests of images, that’s of dynamic requests that are funneling through the pipeline of commerce. I mean, Shopify runs something like 30% of all E-commerce stores on the damn Internet. A huge portion of all commerce in total runs through Shopify and that runs on Ruby on Rails. So Ruby on Rails is able to scale up to that level without using static typing in all of what it does.
Now, I know they’ve done certain experiments in certain ways, because they are hitting some of the limits that you will hit with dynamic typing. Some of those limits you hit with dynamic typing are actually, by the way, just limits you hit when you write 5 million lines of code. I think the Shopify monolith is about 5 million lines of code. At that scale, everything breaks because you’re at the frontier of what humans are capable of doing with programming languages. The difference in part is that Ruby is such a succinct language that those 5 million, if they had been written in, let’s just say Go or Java, would have been 50 or 25. Now, that might have alleviated some of the problems that you have when you work on huge systems with many programmers, but it certainly would also have compounded them; try to understand 25 million lines of code.
Rails does have more complexity than that, but it also has so much longer runway. The runway goes all the way to goddamn Shopify. That is about the most convincing argument I can make for dynamic range, that we can do a lot of it. And even having said that, Shopify is the outlier of course. I don’t think about Shopify as the primary target when I write Rails, I think of the single developer. Actually, I do think about Shopify, but I don’t think about Shopify now. I think of Shopify when Toby was writing Snow Devil, which was the first E-commerce store to sell snowboards that he created. That was the pre-Shopify Shopify he created all by himself. And that was possible because Ruby on Rails isn’t just about beautiful code, it’s just as much about productivity. It’s just as much about the impact that an individual programmer is able to have.
That they can build system where they can keep the whole thing in their head and be able to move it forward, such that you can go from one developer sitting and working on something … and that something is Shopify, and it turns into what it is today. When we talk about programming languages and we compare them, we often compare them at a very late stage. Like, what is the better programming language for, let’s say Twitter in 2009 when it’s already a huge success? Twitter was started on Ruby on Rails. They then hit some scaling problems, it was a big debacle at the time. They end up then I think writing it in some other language, which by the way I think is the best advertisement ever for Ruby on Rails, because nothing fucking happened for 10 years after they switched over, essentially zero innovation. Some of that was because they were doing a long conversion, and all of the early success in part came because they had the agility to quickly change and adopt and so forth. That’s what startups need. That’s what Shopify needed, that’s what Twitter needed.
That’s what everyone needs, and that’s the number one priority for Ruby on Rails, to make sure that we don’t lose that. Because what happens so often when development tools and programming language are driven by huge companies, is that they mirror their org chart, React and everything else needed to use that, is in some ways a reflection of how Meta builds Facebook. Because of course it is, because of course it’s an distraction of that. I’m not saying React isn’t a great tool and that can’t used by smaller teams, of course it can, but it’s born in a very different context than something like Ruby on Rails.
You have to get that response time down below, let’s say at least 300 milliseconds. I like to target a 100 milliseconds as my latency. That kind of performance, how much performance of that kind of latency can you squeeze out of a single CPU core? That tells you something about what the price of a single request will be. But then whether you can deal with one million requests a second, like Shopify is doing right now, if you have one box that can do 1,000 requests a second, you just need X boxes to get up to a million. What you’ll actually find is that when it comes to programming languages, they’re all the same in this way. They all scale, largely, beautifully horizontally, you just add more boxes. The hard parts of scaling a Shopify is typically not the programming language, it’s the database. That’s actually one of the challenges that Shopify has now is, how do you deal with MySQL at the scale that they’re operating at? When do you need to move to other databases to get worldwide performance? All of these things. The questions about scaling Ruby are economic questions.
If we’re spending so-and- so much on application servers, if we can get just 5% more performance out of Ruby, well, we could save 5% of those servers and that could filter down into the budget. Now, that analysis concludes into basically one thing, Ruby is a luxury language. It’s a luxury, the highest luxury, in my opinion. It is the Coco Chanel of programming languages, something that not everyone can afford, and I mean this in the best possible way. There are some applications on the Internet where each request has so little value, you can’t afford to use a luxurious language like Ruby to program in it. You simply have to slum it with a C or a Go or some other low-level language, or a Rust, talk about line noise there.
Versus, if Ruby and Ruby on Rails was even 10% more productive than something else, I would move the needle far more, because making individual programmers more productive actually matters a lot more. This is why people are so excited about AI. This is why they’re freaking out over the fact that a single programmer in Silicon Valley, who makes $300,000 a year, can now do the work of three or five, at least in theory. I haven’t actually seen that fully in practice. But let’s just assume the theory is correct, if not now, then in six months, that’s a huge deal. That matters so much more than whether you can squeeze a few more cycles out of the CPU when it comes to these kinds of business applications. If you’re making Unreal Engine rendering stuff, like Tim Sweeney you had on, yeah, he needs to really sweat all those details. The Nanite engine can’t run on Ruby. It’s never going to, it was not meant for that, fine. These kinds of business applications absolutely can.
And everything people are excited about AI for right now, that extra capacity to just do more, that was why we were excited about Ruby back in the early 2000s. It was because I saw that if we could even squeeze out a 10% improvement of the human programmer, we’d be able to do so much more for so much less.
One of the reasons I don’t enjoy that way of writing is, I can literally feel competence draining out of my fingers. That level of immediacy with the material disappears. Where I felt this the most was, I did this remix of Ubuntu called Omakub when I switched to Linux. It’s all written in Bash. I’d never written any serious amount of code in Bash before, so I was using AI to collaborate, to write a bunch of Bash with me, because I needed all this. I knew what I wanted, I could express it in Ruby, but I thought it was an interesting challenge to filter it through Bash. Because what I was doing was setting up a Linux machine, that’s basically what Bash was designed for. It’s a great constraint. But what I found myself doing was asking AI for the same way of expressing a conditional, for example, in Bash over and over again. That by not typing it, I wasn’t learning it. I was using it, I was getting the expression I wanted, but I wasn’t learning it. I got a little scared.
I got a little scared, is this the end of learning? Am I no longer learning if I’m not typing? The way I, for me, recast that was, I don’t want to give up on the AI. It’s such a better experience as a programmer to look up APIs, to get a second opinion on something, to do a draft, but I have to do the typing myself because you learn with your fingers. If you’re learning how to play the guitar, you can watch as many YouTube videos as you want, you’re not going to learn the guitar. You have to put your fingers on the strings to actually learn the motions. I think there is a parallel here to programming, where programming has to be learned in part by the actual typing.
That doesn’t mean they forget everything but if you don’t have your fingers in the sauce, the source, you are going to lose touch with it. There’s just no other way. I don’t want that because I enjoy it too much. This is not just about outcomes. This is what’s crucial to understand, programming for programmers who like to code is not just about the programs they get out of it. That may be the economic value. It’s not the only human value. The human value is just as much in the expression. When someone who sits down on a guitar and plays Stairways to Heaven, there’s a perfect recording of that, that will last in eternity. You can just put it on Spotify, you don’t actually need to do it. The joy is to command the guitar yourself. The joy of a programmer, of me as a programmer, is to type the code myself. If I elevate, if I promote myself out of programming, I turn myself into a project manager, a project manager of a murder of AI crows, as I wrote the other day. I could have become a project manager my whole career.
I could have become a project manager 20 years ago if I didn’t care to write code myself and I just wanted outcomes. That’s how I got started in programming, I just wanted outcomes. Then I fell in love with programming, and now I’d rather retire than giving it up. Now, that doesn’t mean you can’t have your cake and eat it too. I’ve done some vibe coding where I didn’t care that I wasn’t playing myself. I just wanted to see something that was an idea in my head. I wanted to see something, that’s fine. I also use AI all day long. In fact, I’m already at the point where if you took it away from me, I’d be like, oh my God, how do we even look things up on the Internet anymore? Is Stack Overflow still around, is forum still a thing? How do I even find answers to some of these questions I have all day long? I don’t want to give up AI. In fact, I’d say the way I like to use AI, I’m getting smarter every day because of AI because I’m using AI to have it explain things to me.
Even the stupid questions I would be a little embarrassed to even enter into Google, AI is perfectly willing to give me the ELI5 explanation of some Unix command I should have known already but I don’t. I’m sorry, can you just explain it to me? Now I know the thing. So at the end of the day, of me working with AI all day long, I’m a little bit smarter, like 5%. Sorry, not 5%, half a percent maybe, that compounds over time. But what I’ve also seen when I worked on the Omakub project and I tried to let AI drive for me, I felt I was maybe half a percent dumber at the end of the day.
And even if I never use the code it generates, I’m already a better programmer. But actually the deeper thing is, for some reason I’m having more fun. That’s a really, really important thing.
Now, I had to do the detour where I let it write all the code for me, and I realized I wasn’t learning nearly as much as I hoped I would. That I started doing once I typed it out myself. But it gave me the confidence that, you know what? If I need to do some iOS programming myself … I haven’t done that in, probably six years was the last time I dabbled in it. I never really built anything for real. I feel highly confident now that I could sit down with AI and I could have something in the app store by the end of the week. I would not have that confidence unless I had a pair programming body like AI. I don’t actually use it very much for Ruby code. I’m occasionally impressed whenever I try it, like, oh, it got this one thing right, that is truly remarkable and it’s actually pretty good. And then I’ll ask two more questions and I go like, oh yeah, okay, if you were my junior programmer I’d start tapping my fingers and going like, you’ve got to shape up.
Now, the great thing of course is, we can just wait five minutes. The Anthropic CEO seems to think that 90% of all code by the end of the year is going to be written by AI. I’m more than a little bit skeptical about that, but I’m open-minded about the prospect that programming potentially will turn into a horse when done manually. Something we do recreationally is no longer a mode of transportation to get around LA. You’re not going to saddle up and go to the grocery store and pick up stuff from Whole Foods in your saddlebags. That’s just not a thing anymore. That could be the future for programming, for manual programming, entirely possible. I also don’t care. Even though we have great renditions of all the best songs, as I said, there are millions of people who love to play the guitar. It may no longer have as much economic value as it once did. I think that I’m quite convinced is true, that we perhaps have seen the peak.
Now, I understand the paradox, when the price of something goes down, actually the overall usage goes up, and total spend on that activity goes up. That could also happen maybe. But what we’re seeing right now is that a lot of the big shops, a lot of the big companies, are not hiring like they were five years ago. They’re not anticipating they’re going to need tons more programmers. Controversially, Toby actually put out a memo inside of Shopify asking everyone who’s considering hiring someone to ask the question, could this be done by AI? Now, he’s further ahead on this question than I am. I look at some of the code and [trenches 01:40:37] and I go like, I’d love to use AI more, and I see how it’s making us more productive. But it’s not yet at the level where I just go like, oh, we have this project, let me just give it to the AI agent and it’s going to go off and do it.
Right now, we’re probably at peak AI future hype because we see all the promise, because so much of it is real and so many people have experienced it themselves. This mind-boggling thing that the silicon is thinking in some way that feels eerily reminiscent of humans. I’d actually say the big thing for me wasn’t even ChatGPT, it wasn’t even Claude. It was DeepSeek. Running DeepSeek locally and seeing the think box where it converses with itself about how to formulate the response. I almost wanted to think, is this a gimmick? Is it doing this as a performance for my benefit? But that’s not actually how it thinks. If this is how it actually thinks. Okay, I’m a little scared. This is incredibly human how it thinks in this way, but where does that go? So in ’95, one of my favorite movies, one of my favorite B movies came out, The Lawnmower Man.
We’re going to invent super mega hypersonic flights that’s going to traverse the earth in two hours, and then that didn’t happen. It tapped out. This is what’s so hard about predicting the future. We can be so excited in the moment because we’re drawing a line through early dots on a chart, and it looks like those early dots is just going up into the right and sometimes it’s just flattened out. This is also one of those things where we have so much critical infrastructure, for example, that still runs on COBOL, that about five humans around the world really understand truly, deeply that it’s possible for society to lose a competence it still needs because it’s chasing the future.
COBOL is still with us. This is one of the things I think about with programming. Ruby on Rails is at such a level now that in 50 years from now, it’s exceedingly likely that there’s still a ton of Ruby on Rails systems running around now, very hard to predict what that exact world is going to be like, but yesterday’s weather tells us that if there’s still COBOL code from the ’70s operating social security today, and we haven’t figured out a clean way to convert that, let alone understand it, we should certainly be humble about predicting the future.
I don’t think any of the programmers who wrote that COBOL code back in the ’70s had any idea that in 2025 checks were still being cut off the business logic that they had encoded back then. But that just brings me to the conclusion on the question for what should a young programmer do? You’re not going to be able to predict the future. No one’s going to be able to predict the future. If you like programming, you should learn programming. Now, is that going to be a career forever? I don’t know, but what’s going to be a career forever? Who knows? A second ago we thought that it was the blue-collar labor that was going to be abstracted. First, it was the robots that were going to take over. Then Gen AI comes out, and then all the artists suddenly look like, “Holy shit, is this going to do all animation now? Is going to do all music now?”
They get real scared, and now I see the latest Tesla robot going like, “Oh, maybe we’re back now to blue-collar being in trouble because if it can dance like that, it can probably fix a toilet.” So no one knows anything, and you have to then position yourself for the future in such a way that it doesn’t matter that you pick a profession or path where if it turns out that you have to retool and re-skill, you’re not going to regret the path you took. That’s a general life principle. For me, how I look at all endeavors I involved myself in is I want to be content with all outcomes.
When we start working on a new product at 37 Signals, I set up my mental model for success and I go, “Do you know what? If no one wants this, I will have had another opportunity to write beautiful Ruby code to explore greenfield domain, to learn something new, to build a system I want, even if no one else wants it.” What a blessing, what a privilege. If a bunch of people want it, that’s great. We can pay some salaries, we can keep the business running, and if it’s a blowaway success, wonderful. I get to impact a bunch of people.
You’re going to learn in this superficial way that feels like learning but is completely empty calories, and secondly, if you can just vibe code it, you’re not a programmer. Then anyone could do it, which may be wonderful. That’s essentially what happened with the Access database. That’s what happened with Excel. It took the capacity of accountants to become software developers because the tools became so accessible to them that they could build a model for how the business was going to do next week that required a programmer prior to Excel. Now, it didn’t because they could do it themselves by coding enables non-programmers to explore their ideas in a way that I find absolutely wonderful, but it doesn’t make you a programmer.
Maybe editing is a fundamentally different task than writing from scratch if you take that seriously as a skill that you develop. I see. To me, that’s an open question. I just think I personally, now you’re on another level, but just personally, I’m not as good at editing the code that I didn’t write. That’s a different-
Wasn’t that the whole promise of AI anyway, that it was just all natural language that even my clumsy way of formulating a question could result in a beautiful succinct answer? That actually to me is a much more appealing vision that there’s going to be these special prompt engineering wizards who know how to tickle the AI just right to produce what they want. The beauty of AI is to think that someone who doesn’t know the first thing about how AI actually works is able to formulate their idea and their aspirations for what they want, and the AI could somehow take that messy clump of ideas and produce something that someone wants.
That’s actually what programming has always been. There’s very often been people who didn’t know how to program, who wanted programs, who then hired programmers, who gave them messy descriptions of what they wanted, and then when the programmers delivered that back said, “Oh, no, actually that’s not what I meant. I want else.” AI may be able to provide that cycle if that happens to the fullest extent of it, yeah, there’s not going to be as many programmers around, but hopefully presumably someone still, at least for the foreseeable future, have to understand whether what the AI is producing actually works or not.
Pieter Levels who’ve been doing this wonderful flight simulator was talking to that where at a certain scale the thing just keeps biting its own tail. You want to fix something and it breaks five other things, which I think is actually uniquely human because that’s how most bad programmers are at a certain level of complexity with the domain. They can’t fix one thing without breaking three other things, so in that way I’m actually in some way it’s almost a positive signal for that. The AI is going to figure this out because it’s done an extremely human trajectory right now. The kind of mistakes it’s making are the kind of mistakes that junior programmers make all the time.
Oops. So I wanted to write these things down and if we just take them quick one by one, you talked about optimizing for programmer happiness. I put that at number one in homage of Matz, and that’s a lot about accepting that there is occasionally a trade-off between writing beautiful code and other things we want out of systems. There could be a runtime trade-off. There can be a performance trade-off, but we’re going to do it nonetheless. We’re also going to allow ambiguity in a way that many programmers by default are uncomfortable with. I give the example actually here of in the interactive Ruby Shell where you can play with the language or even interact with your domain model. You can quit it in two ways, at least that I found. You can write exit. Boom, you’re out of the program. You can write quit. Boom, you’re out of the program.
They do the same thing. We just wrote both exit or the people who built that wrote both exit and quit because they knew humans were likely to pick one or the other. Python is the perfect contrast to this. In the Python interactive protocol, if you write exit, it won’t exit. It’ll give you a fucking lesson. It’ll basically tell you to read the fucking manual. It says, “Use exit() or Ctrl+D i.e. end of file to exit.” I’m like one is very human and another is very engineer, and I mean that both of them in the best possible way. Python is pedantic. Python’s the value from the start stated is that there should be preferably one and only one way to do a certain thing. Ruby is the complete opposite. No, we want the full expression that fits different human brains such that it seems like the language is guessing just what they want.
Convention of a configuration is essentially to take that idea that the system should come pre-assembled. I’m not just handing you a box of fucking Legos and asking you to build the Millennium Falcon. I’m giving you a finished toy. You can edit, you can change it. It’s still build out a Legos. You can still take some pieces off and put in some other pieces, but I’m giving you the final product and this cuts against the grain of what most programmers love. They love a box of Legos. They love to put everything together from scratch. They love to make all these detailed little decisions that just don’t matter at all, and I want to elevate that up such that, hey, I’m not trying to take the decisions away from you. I just want you to focus on decisions that actually matter that you truly care about. No one cares about whether it’s post underscore ID or post ID or PID.
And if they are using the same thing, they’re only using the same thing for about five minutes, so we have no retained wisdom. We build up no durable skills. Rails goes the complete opposite way of saying do you know what? Rails is not just a web framework. It is a complete attempt at solving the web problem. It’s complete attempt at solving everything you need to build a great web application, and every piece of that puzzle should ideally be in the box pre-configured, pre-assembled.
If you want to change some of those pieces later, that’s wonderful, but on day one you’ll get a full menu designed by a chef who really cared about every piece of the ingredient and you’re going to enjoy it, and that’s again one of those things where many programmers think like I know better and they do in some hyperlocal sense of it. Every programmer knows better. This is what Ruby is built on, that every programmer knows better in their specific situation. Maybe they can do something dangerous, maybe they think they know better and then they blow their foot off and then they truly will know better because they’ve blown their foot off once and won’t do it again. But the menu on omakase is that.
The monolith says let’s try to focus on building a whole system that a single human can actually understand and push that paradigm as far as possible by compressing all the concepts such that more of it will fit into memory of a single operating human, and then we can have a system where I can actually understand all of Basecamp. I can actually understand all of HEY. Both of those systems are just over a hundred thousand lines of code. I’ve seen people do this that maybe twice, maybe three times that scale and then it starts breaking down. Once you get north of certainly half a million lines of code, no individual human can do it, and that’s when you get into maybe some degree of microservices can make sense.
When HEY launched, we shipped 40 kilobytes. It’s trying to solve the same problem. You can solve the email client problem with either 28 megabytes of uncompressed JavaScript or with 40 kilobytes if you do things differently, but that comes to the same problem essentially. This is why I have fiercely fought splitting front end and back end. Apart that in my opinion, this was one of the great crimes against web development that we are still atoning for that we separated and divided what was and should be a unified problem solving mechanism. When you are working both on front end and back end, you understand the whole system and you’re not going to get into these camps that decompose and eventually you end up with shit like GraphQL.
Object orientation is at the center of it, but it’s okay to invite all these other disciplines in. It’s okay to be inspired. It’s okay to remix it. I actually think one of the main benefits of Rails is that it’s a remix. I didn’t invent all these ideas. I didn’t come up with ActiveRecord. I didn’t come up with the MVC way of dividing an application. I took all the great ideas that I had learned and picked up from every different camp and I put it together. Not because there was going to be just one single overarching theory of everything, but I was going to have a cohesive unit that incorporated the best from everywhere.
They don’t actually want to pollute the beautiful object-oriented nature of that kind of programming with SQL. There was a rant by Uncle Bob the other day about how SQL is the worst thing ever. Okay, fine, whatever. I don’t care. This is practical. We are making crud applications. You’re taking things out of an HTML form and you’re sticking them into a database. It’s not more complicated than that. The more abstractions you put in between those two ends of the spectrum, the more you’re just fooling yourself. This is what we’re doing. We’re talking to SQL databases.
By the way, quick aside, SQL was one of those things that have endured the onslaught of NoSQL databases structured list data for a better part of a decade and still reign supreme. SQL was a good thing to invest your time in learning. Every program I’m working with the web should know SQL to a fair degree, even if they’re working with an ORM, an object relational mapper as ActiveRecord, you still need to understand SQL. What ActiveRecord does is not so much try to abstract the SQL away behind a different kind of paradigm. It’s just making it less cumbersome to write, making it more amenable to build domain models on top of other domain models in a way, since you don’t have to write every SQL statement by hand.
That’s where I think a lot of ORMs went wrong. They tried to live in the pure world of objects, never to consider that those objects had to be consistent into a SQL database, and then they came up with convoluted way of translating back and forth. ActiveRecord says, “You know what? Just accept it.” This record, this object is not going to get saved into some no-SQL database, it’s going to be saved into SQL database, so just structure the whole thing around that. It’s going to have attributes, those attributes are going to respond to columns in the database. It’s not more complicated than that stuff making it so.
I understand I can’t teach you everything in five minutes. No one who’s ever become good at anything worthwhile could be taught everything in five minutes. If you want to be a fully well-rounded application developer, that takes years, but you can actually become somewhat productive in a few days, you can have fun in a few days. For sure, you’re going to have fun in a few minutes, in a few hours, and over time, I can teach you a little more. ActiveRecord says like, “Yeah, yeah. All right, start here and then, next week, we’ll do a class on SQL.”
We tried that for a couple of years where we hired some very good engineering managers who did engineering management the way you’re supposed to do it, the way it’s done all over the place, and after that, I thought, “No. No, I was right. This was correct, we should not have had managers.” Not every programmer needs a therapy session with an engineering manager every week, we don’t need these endlessly scheduled huddles, we don’t need all these meetings. We just need to leave people the hell alone to work on problems that they enjoy for long stretches of uninterrupted time. That is where happiness is found, that’s where productivity is found, and if you can get away with it, you absolutely should. Engineering management is a necessary evil when that breaks down.
It’s more important that you work under and with someone who’s better at your job than you are if you wish to progress in your career, and every single programmer I’ve ever worked with was far more interested in progressing in their career on that metric, getting better at their craft, than they were in picking up pointers that a middle manager could teach them. That’s not saying that there isn’t value in it, it’s not saying there isn’t value in being a better person or a better communicator. Of course, there is all those things, but if I have to choose one or the other, I value competence higher. Again, I cavit this a million times, because I know what people sometimes hear, they hear the genius asshole is just fine, and that’s great and you should excuse all sorts of malicious behavior if someone’s just really good at what they do.
I’m not saying that at all. What I am saying is that the history of competence is a history of learning from people who are better than you, and that relationship should take precedence over all else. That relationship gets put aside a bit when engineering manager’s introduced. Now, the funny thing is this conversation ties back to the earlier things we were talking about. Most engineering managers are actually former programmers. They at least know program to some extent, but what I’ve seen time and again is that they lose their touch, their feel with it very, very quickly and turn into pointy-haired bosses very, very quickly who are really good at checking for updates, “Just seeing where we are on project A here if you need anything,” or, “We’re really to deliver?” Okay, yes. Also, no. Shut up, leave me the hell alone. Let me program and then I’ll come up for air.
I’ll talk with other programmers who I can spar with, that we can learn something with, where I can turn the problems over with and we can move forward. If you look back on the history of computer industry, all the great innovation that’s happened, it’s all been done by tiny teams with no engineering managers. Just full of highly-skilled individuals. You’ve had John Carmack on here. I used to look up to its software so much, not just because I love Quake, not just because I loved what they were doing, but because he shared a bit about how the company worked. There were no managers or maybe they had one business guy doing some business stuff, but that was just to get paid. Everything else was basically just designers and programmers, and there were about eight of them and they created goddamn Quake 2. Why do you need all these people again?
Why do you need all these managers again? I think, again, at a certain scale, it does break down. It’s hard to just have 100,000 programmers running around wild without any product mommies or daddies telling them what to do. I understand that. Then even as I say that, I also don’t understand it, because if you look at something like Gmail for example, that was like a side project done by Buchheit at Google at the time. So much of the enduring long-term value of even all these huge companies were created by people who didn’t have a god damn manager, and that’s not an accident. That’s a direct cause and effect. I’ve turned in some way even more militant over the years against this notion of management, at least for myself and knowing who I am and how I want to work, because the other part of this is I don’t want to be a manager, and maybe this is just me projecting the fact that I’m an introvert who don’t like to talk to people on one-on-one calls every week, but it also encapsulates how I was able to progress my career.
I did not really go to the next level with Ruby or otherwise until I had a door I could close and no one could bother me for six hours straight.
My answer, perhaps partly because I was like 24 was, first of all, “No, no care in the world,” but the real answer was they’re not going to produce the same thing. You cannot produce the software that Basecamp is with a team of a 1,000 people. You will build the software that 1,000 people build, and that’s not the same thing at all. So much of the main breakthrough in both end-user systems but also in open-source systems and fundamental systems, they’re done by individuals or very small teams. Even all these classical histories of Apple has always been like, well, there’s a big organization, but then you had the team that was actually working on the breakthrough. It was four people, it was eight people, it was never 200.
You know far more about what the great next step is when you’re one step behind, rather than if you try 18 months in advance to map out all the steps. “How do we get from here to very far away?” You know what? That’s difficult to imagine in advance, because humans are very poor at that. Maybe AI one day will be much better than us, but humans can put one foot in front of each other. That’s not that hard, and that allows you to get away with all that sophistication. The process has become much simpler, you need far fewer people, it compounds, you need much less process, you need to waste less time in meetings. You can just spend these long glorious days and weeks of uninterrupted time solving real problems you care about and that are valuable, and you’re going to find that that’s what the market actually wants.
No one is buying something because there’s a huge company behind it, most of the time. They’re buying something because it’s good, and the way you get something good is you don’t sit around and have a meeting about it, you try stuff, you build stuff.
That was the entire company at the time, and we could create something of sheer sustaining value with such a tiny team, because we were a tiny team. Not despite off. Small is not a stepping stone. This is the other thing that people get into their head, this is one of the big topics about a rework, that it gave entrepreneurs the permission to embrace being a small team not as a waypoint, not as, “I’m trying to become 1,000 people.” No, I actually like being a small team. Small teams are more fun. If you ask almost anyone, I’m sure Toby would say this too, even at his scale, the sheer enjoyment of building something is in the enjoyment of building it with a tiny team. Now, you can have impact at a different scale when you have a huge company, I fully recognize that and I see the appeal of it, but in the actual building of things, it’s always small teams. Always.
Now, the path to that usually does go through running established playbooks, and then when it comes to software, the enterprise sales playbook is that playbook. If you’re doing B2B, software SaaS, you will try to find product market fit, and the second you have it, you will abandon your small and medium-sized accounts to chase the big whales with a huge sales force and, by then, you’re 1,000 people and life sucks.
It was essentially a vaccine against wanting to take a larger check from people who then wanted to take the company to something enormous that we didn’t want to go with it. Jeff gave Jason and I just enough money that we were comfortable turning all these people down in a way where, if it had turned belly up six months later, we wouldn’t have been kicking ourselves and gone, “We had something here that was worth millions, and now we have nothing and I have to worry about rent and groceries again.”
His investment team said like, “Jeff, no way. This makes no economic sense at all, they’re asking for way too much money with way too little revenue,” and Jeff just went like, “I don’t care, I want to invest in this guy,” because to him, at the time, it was chump change. Jason and I each got a few million dollars, whatever the currency swing between the yen and the dollar that day probably moved 10X for his net worth than our investment did. Jeff seemed genuinely interested in being around interesting people, interesting companies, helping someone go to distance. I actually look back on that relationship with some degree of regret, because I took that vote of confidence for granted in ways that I’m a little bit ashamed of. Over the years, I’ve been more critical about some of the things that Amazon had done that I feel now is justified.
That’s just part of that processing of it, but on the economic sense, he gave us that confidence. He gave us the economic confidence, but then he also gave us the confidence of a CEO running, perhaps at the time the most important internet business in the US, showing up to our calls, which we would have with him once a year, and basically, just going like, “Yeah, you guys are doing awesome stuff. You should just keep doing awesome stuff. I read your book, it’s awesome. You launched this thing, it’s awesome. You should just do more of that. I don’t actually know how to run your business, you guys know.”
I think that’s one of the main things I’ve taken away from that relationship is that you can just believe in yourself. To that degree against those odds? That’s ridiculous. He did that so many times at our level that it’s pathetic if I’m doubting myself.
The only escape from that is mediocrity. If you are so boring and so uninteresting that no one gives a damn whether you exist or not, yeah, you don’t get the haters, but you also don’t get the impact of people who really enjoy your work. I think Amazon is that just at the massive scale, right? They’ve brought so much value and change to technology, to commerce that they must simply have a black hole size of haters. Otherwise, the universe is simply going to tip over.
I tried to pick an easier path, working with a designer, where I knew that at least half of the time I could just delegate to his experience and competence and say like, do you know what? I may have an opinion. I have an opinion all the time on design, but I don’t have to win the argument because I trust you. Now, occasionally we would have overlaps on business or direction where we’d both feel like we had a strong stake in the game and we both had a claim to competence in that area, but then for whatever reason, we also both had a long-term vision, where I would go, do you know what? I think we’re wrong here, but as I learned from Jeff Bezos, by the way, I’m going to disagree and commit. That was one of those early lessons he gave us, that was absolutely crucial and perhaps even instrumental in ensuring that Jason and I have been working together for a quarter of a century. Disagree and commit is one of the all time Jeff Bezos’ greats.
There’s way too much bouncing going on and not enough scoring, not enough dunking, and I think this is one of the great traps of executive rule. Once a founder elevates themselves all the way up to an executive, where what they’re doing is just telling other people what to do, that’s the realm they live in 24/7. They just live in the idea realm. Oh, I can just tell more people, more things what to do and we can just see it happen. If you actually have to be part of implementing that, you slow your horse. Do you know what? I had a good idea last week. I’m going to save the rest of my good ideas until next month.
There’s some kernel in that idea that can be applied to relationship. There’s some amount of exchange we can have. There’s some amount of time we can spend together, where you can wear it out. Jason and I were diligent about not wearing each other out, and I think that is absolutely key to the longevity of the relationship combined with that level of trust and then just combining with the level that we really like the work itself. We don’t just like the brainstorming the [inaudible 02:55:21] where we just come up with good ideas. Now we like to do the ideas, and we like to be part of that process directly ourselves. I like to program, he likes to do design. We could go off and do our little things for long stretches of time. In case you come together and go like, hey, let’s launch a great product.
You need something else. You need other relationships in your life, and there is no greater depth of relationship if you can find someone that you actually just want to spend a lot of time with. That’s key to it and I think it’s key for both Jason and I that we’ve had families for quite a long time, and it grounds you to in a way where the sprint of a startup can get traded in for the marathon of an enduring company, and you get settled in a way. We talked briefly about sometimes I get fired up. I mean, a lot of times, maybe even most of the times I get fired up about topics, but I don’t get fired up in the same way now as I used to when I was 24. I’m still extremely passionate about ideas and trying to find the right things, but having a family, meeting my wife, building a life around that has just mellowed everything out in a completely cliche way, but I think it’s actually key.
I think if we could get more even younger people not to wait until they were in their god-damn 30s or early 40s to hitch up with someone, we’d be better off and we’d have more stable business relationships as well, because folks would get that nurturing human relation somewhere else. Now, when I say all of that, I also accept that there are plenty of great businesses that’s been built over the years that have not been built remote, that have been built by a gang of hooligans sitting in an office for immense hours at time.
I mean, both John Carmack and Tim Sweeney talked about that in the ’90s with their careers that that was just basically work, sleep, hang out with the guys at the office, right? Totally fair. That never appealed to me. Both Jason and I saw eye to eye on the idea that 40 hours a week dedicated to work was enough that if we were going to go to distance for not just the five to seven years it takes to build a VC case up to an exit, but for potentially 10 years, 20 years or further, we needed to become whole humans, because only that whole human-ness was going to go to distance, which included building up friendships outside of work, having hobbies, finding a mate and having a family. And that entire existence, those legs of the stool that work is not the only thing in life is completely related to the fact that we’ve been around for 25 years. There’s way too much, especially in America of false trade-offs. Oh, you want to build a successful business? Well, you can either have money enjoyment or family or health, pick one.
What? Why do we have to give up all of this? Now, again, I’m not saying, and there are moments, prayers, life where you can sprint, but I am saying if that sprint turns into a decade, you’re going to pay for it. And you’re going to pay for it in ways I’ve seen time and again, seemed like a very bad trade, that even if it works. And by the way most of the time it does not. Most of the time startups go bust. Most of the times people spend five, seven years or something that does not pan out, and they don’t get the payout. And then they just sit with regret of like, what the fuck happened to my 20s? Early on, Jason and I basically made the pact that working together was not going to lead to that kind of regret, that we were going to allow ourselves and each other to build a whole life outside of work. And the fact that that worked is something I feel is almost like forbidden knowledge.
Certainly in technology circles in US, it’s something that we’ve tried to champion for 20 years and we still get slacked for. Just two days ago, I had another Twitter beef with someone saying like, “Oh, well, okay, maybe it worked, but you didn’t turn into Atlassian, so you’re a failure. Basecamp isn’t Jira, so why are you even bothering?” And it’s such a fascinating winner-takes- all mentality that unless you dominate everyone else in all the ways, you’ve lost. When so much of life is far more open to multiple winners, where we can end up with a business that have made hundreds of millions of dollars over the years and we’ve kept much of that to do whatever we want and that that’s enough. That’s good. That’s great. That’s actually something worth aspiring to. Certainly, it should be a path for someone to consider choosing rather than the VC unicorn of bust mentality that dominates everything.
They look back upon those moments with the greatest amount of joy, and that is what peak happiness is. If you take away the pursuit of those kinds of problems, if you eliminate all the problems from your plate, you’re going to get depressed. You’re not going to have a good time. Now, there are people who can do that, but they’re not the same kind of people who built these kinds of companies. So you have to accept the kind of individual you are. If you are on this path, don’t bullshit yourself. Don’t bullshit yourself into thinking, I’m just going to sacrifice everything, my health, my family, my hobbies, my friends, but in 10 years I’m going to make it all up, because in 10 years I can do it.
It never works out like that. It doesn’t work out on both ends of it. It does not work out if you’re successful and you sell your company, because you’ll get bored out of your mind after two weeks on retirement. It doesn’t work out if the company is a failure and you regret the last 10 years spent for nothing. It doesn’t work out if it all works and you stay in the business because it never gets any easier. So you’re going to fail on all metrics if you just go, there’s only work and nothing else. And I didn’t want that. I wanted the happiness of flow. I understood that insight was true, but I wanted to do it in a way where I could sustain the journey for 40 or 50 years.
There’s that part of it. And then there’s the part of it that going back to experience things for the first time only happens the first time. You can’t do it again. I don’t know if I have it in me to go through the bullshit of the early days again. And I say bullshit in the sense of the most endearing sense. It’s all great to do it. I know too much. This is one of the reasons why whenever I’m asked the questions, if you could tell your younger self something that would really, what would you say to your younger self? I would fucking not say a thing. I would not rob my younger self of all the life experiences that I’ve been blessed with due to the ignorance of how the world works. Building up the wisdom about how the world works is a joy, and you got to build it one break at a time.
If you just handed all the results, it’s like, oh, should we watch your movie? Here’s how it ends. I don’t want to watch the movie now. You spoiled it. I don’t want you to spoil my business experience. I don’t want to spoil any of my ignorance. The greatest blessing half the time when you’re starting something new is A, you don’t know how hard it’s going to be. B, you don’t know what you don’t know. The adventure is to pay off. The responsibility is to pay off. This is something Jordan Peterson has really taught me to articulate. This notion that responsibility is actually key to meaning.
Man’s Search for Meaning, Viktor Frankl talks about this as well, that we can endure any hardship if there’s a reason why. Now, he talked about it in truly life altering concentration camp ways, but you can also apply at a smaller scale with less criticality of even just your daily life that all that hardship in building the original business that is responsibility you take upon yourself. The appeal, the reason you take that on you is in part because you don’t know fully what it entails. If you had known upfront, if I had known upfront how hard it would be, how much frustration there’d be along the way, if you just told me that in a narrative before I got started, I would’ve been like, eh, maybe I should just go get a job.
Either I go all in all the time, there’s nothing else, I’m completely exhausted at the [inaudible 03:10:37] or I traveled the same distance and I arrived maybe two minutes later, but I got to enjoy the scenery, listen to the birds, smell the flowers. That journey is also valuable. Now, I say that while accepting and celebrating that if you want to be the best at one thing in the world, no, you have to sacrifice everything. You have to be obsessed with just that thing. There is no instant of someone who’s the best in the world at something who’s not completely obsessed. I didn’t need to be best at anything. This was a rare blessing of humility I had early on is like, do you know what? I am not that smart. I’m not that good. I’m not that talented. I can do interesting things by combining different aspects and elements that I know, but I’m not going to be the best at anything.
And that released me from this singular obsession with just going, I’m going to be the best programmer in the world. I know I’m not. I fucking failed at it twice before I even got how conditional it’s worked. I’m not smart enough to be the best at anything. I’m not dedicated enough to do that. That’s a bit of a blessing. And I think as a society, we have to straddle both celebrating peak excellence, which we do all the time, and celebrating the peak intensity of mission it takes to become that. And then also going like, do you know what? We don’t all need to be Michael Jordan. There’s only going to be one of those.
I can do a lot of things at the same time that gives me sort of that variety that almost was idealized. Karl Marx has this idea, oh, I’m going to fish in the morning and hammer in the evening and paint on the weekends, right? That there’s a sense for me at least, where his diagnosis of alienation was true, that just that tunnel vision, there’s just this one thing I’m just going to focus on that gives me a sense of alienation. I can’t stomach.
When I’m really deep on programming. And sometimes I go deep for weeks, maybe even in a few cases months, I have to come up for air and I have to go do something else like, all right, that was programming for this year. I’ve done my part, and I’m going to go off riding or annoy people on the internet or drive some race cars to do something else, and then I can do the programming thing with full intensity again next year.
This idea that cost don’t matter is a very Silicon Valley way of thinking that I again understand at the scale of something maybe, but I also actually think it’s aesthetically unpleasing. I find an inefficient business as I find an inefficient program full of line noise to just be a splinter in my brain. I hate looking at an expense report and just seeing disproportionate waste. And when I was looking at our spend at 37signals a while back, a few years back, I saw bills that did not pass my smell test. I remembered how much we used to spend on infrastructure before the cloud, and I saw numbers I could not recognize in proportion to what we needed. The fact that computers had gotten so much faster over time, shouldn’t things be getting cheaper? Why are we spending more and more money servicing more customers? Yes, but with much faster computers. Moore’s law should be lowering the costs, and the opposite is happening. Why is that happening? And that started a journey of unwinding why the cloud isn’t as great as the deal as people like to think [inaudible 03:17:48].
I actually thought that was a compelling pitch. I bought in on that pitch for several years and thought, do you know what? I’m done ever owning a server again. We are just going to rent our capacity, and Amazon is going to be able to offer us services much cheaper than we could buy them themselves because they’re going to have these economies of scale. And I was thinking Jeff’s word ringing, “My competitor’s margin is my opportunity.” That was something he used to drive amazon.com with, that if he could just make 2% when the other guy was trying to make 4%, he would end up with all the money and on volume he would still win.
So I thought that was the operating ethos for AWS. It turns out that’s not true at all. AWS, by the way, operates at almost 40% margin. So just in that, there’s a clue that competitors are not able to do the competitive thing we like about capitalism, which is to lower costs and so forth. So the cloud pitch in my optics, it’s fundamentally false. It did not get easier, first of all. I don’t know if you’ve used AWS recently. It is hella complicated. If you think Linux is hard, you’ve never tried to set up IAM rules or access parameters or whatever for AWS.
If you need a thousand computers online in the next 15 minutes, nothing beats the cloud. How would you even procure that? If we just need another 20 servers, it’s going to take a week or two to get boxes shipped on pallets, delivered to a data center and unwrapped and racked and all that stuff. But how often do we need to do that? And how often do we need to do that if buying those servers is way, way cheaper so we get vastly more compute for the same amount of money? Could we just buy more servers and not even care about the fact that we’re not hyper-optimized on the compute utility, that we don’t have to use things like automatic scaling to figure things out because we have to reduce costs? Yes, we can. So we went through this journey over a realization in early 2023, when I had finally had enough with our bills.
I wanted to get rid of them. I wanted to spend less money. I wanted to keep more of the money ourselves. And in just over six months, we moved seven major applications out of the cloud in terms of compute, caching, databases to works onto our own servers. A glorious, beautiful new fleet bought from the king of servers, Michael Dell, who really, by the way, is another icon of mine. I saw he just celebrated 41 years in business. 41 years, this man has been selling awesome servers that we’ve been using for our entire existence. But anyway, these pallets arrive in a couple of weeks and we rack them up and get everything going, and we were out, at least with the compute part. We then had a long multi-year commitment to S3, because the only way to get decent pricing in the cloud, by the way, is not to buy on a day-to-day basis, not to rent on a day-to-day basis, but to bind yourself up to multi-year contracts. With compute, it’s often a year. That was in our case.
And with storage, this was four years. We signed a four-year contract to store our petabytes of customer files in the cloud to be able to get something just halfway decent affordable. So all of these projects came together to the sense that we’re now saving literally millions of dollars, projected about 10 million over five years. It’s always hard. How do you do the accounting exactly and TOC this, that and the other thing, but it’s millions of dollars. But it’s not just that. It’s also the fact that getting out of the cloud meant returning to more of an original idea of the internet. The internet was not the sign such that three computers should run everything. It was a distributed network such that the individual nodes could disappear and the whole thing would still carry on. DARPA designed this such that the Russians could take out Washington and they could still fight back from New York, that the entire communication infrastructure wouldn’t disappear because there was no hub and spoke. It was a network. I always found that an immensely beautiful vision, that you could have this glorious…
I don’t know the last time you looked at an actual server and took it apart and looked inside of, these things are gorgeous. I posted a couple of pictures of our racks out in the data center and people always go crazy for them because we’ve gotten so abstracted from what the underlying metal looks like in this Cloud age that most people have no idea. They have no idea how powerful a modern CPU is, they have no idea how much RAM you can fit into a 1U rack. Progress in computing has been really exciting especially, I’d say, in the last four to five years after TSMC, with Apple’s help, really pushed the envelope. We sat still there for a while while Intel was spinning their wheels going nowhere and then TSMC, with Apple propelling them, really move things forward and now servers are exciting again. You’re getting jumps year over year in the 15, 20% rather than the single digit we were stuck with for a while and that all means that owning your own hardware is a more feasible proposition than it’s ever been, that you need fewer machines to run ever more and that more people should do it because, as much as I love Jeff and Amazon, he doesn’t need another, whatever, 40% margin on all the tech stuff that I buy to run our business.
And this is just something I’ve been focused on both because of the ideology around honoring DARPA’s original design, the practicality of running our own hardware, seeing how fast we can push things with the latest machines and then saving the money. And that has all been so enjoyable to do but also so counterintuitive for a lot of people because it seemed, I think, for a lot of people in the industry, that we’d all decided that we were done buying computers, that that was something we would just delegate to AWS and Azure and Google Cloud, that we didn’t have to own these things anymore. So, I think there’s a little bit of whiplash for some people that, oh, I thought we agreed we were done with that and then along come us and say, “Ah, you know what? Maybe you should have a computer.”
Literally, the entire internet was built on people knowing how to plug in a computer to the internet. Oh, ethernet cable goes here, power cable goes here, let’s boot up Linux. That’s how everyone put anything online until 10, 12 years ago when the Cloud took over. So, the expertise is there and can be rediscovered, you too can learn how to operate a Linux computer.
And I’m pretty fired up about that, I’m doing a bunch of experiments, I’ve ordered a bunch of home servers for my own apartment. I marvel at the fact that I can get a five gigabit fiber connection now, I think. Do you know what five gigabit, that could have taken Basecamp to multiple millions of MRR in the way that back then I ran the whole business on a single box with 2004 technology and probably 100 megabit cable. The capacity we have access to, both in terms of compute and connectivity, is something that people haven’t readjusted to. And this happens sometimes in technology where progress sneaks up on you, this happened with SSDs, I love that by the way.
We designed so much of our technology and storage approach and database design around spinning metal disks that had certain seek rate properties and then we went to NVMe and SSDs and it took quite a while for people to realize that the systems had to be built fundamentally different now. That the difference between memory and disk was now far smaller when you weren’t spinning these metal plates around with a little head that had to read off them, you were essentially just dealing with another type of memory. I think we’re a little bit in that same phase when it comes to the capacity of new businesses to be launched literally out of your bedroom.
When we need something like, “Hey, Deft, can you go down and swap the dead SSD in box number six?” They do it and what we see is akin to what someone working with the Cloud would see. You see IP addresses coming online, you see drives coming online, it’s not that different but it is a whole heck of a lot cheaper when you are operating at our scale. And of course it is, of course it’s cheaper to own things if you need those things for years rather than it is to rent it. In no other domain would we confuse those two things that it’s cheaper to own for the long duration than it is to rent.
We think of Elon as finding great talent, and I’m sure he is also good at that, but I also think that this beacon of the mission. We’re going to fucking Mars, we’re going to transform transportation into using electricity, we’re going to cover the earth in internet is so grand that there are days where I wake up and go like, “What the fuck am I doing with these to-do lists?” Like, “Jesus, should I go sign up for something like that?”
And there’s just you could see the flourishing of human intellect in these meetings, in these group getting together where the energy is palpable. It’s exciting for me to just be around that because there’s not many companies I’ve seen that in because, when a company becomes successful and larger, it somehow suffocates that energy that, I guess, you see in start-ups at the early stages but it’s cool to see it at a large company that’s actually able to achieve scale.
And is this, at our tiny scale, something I’ve tried to do in the same order where, when we hire programmers, for example, it’s going to be interesting now with AI as the new challenge, but up until this point, the main pivot point for getting hired was not your resume, was not the schooling you’ve had, it was not your grades, it was not your pedigree, it was how well you did on two things. A, your cover letter because I can only work with people remotely if they’re good writers. So, if you can’t pen a proper cover letter and can’t bother to put in the effort to write it specifically for us, you’re out. Two, you have to be able to program really well to the degree that I can look at your code and go like, “Yeah, I want to work with that person.” Not only I want to work with that person, I want to work on that person’s code when I have to see it again in five years to fix some damn bug.
So, we’re going to give you a programming test that simulates the way we work for real and we’re going to see how you do. And I’ve been surprised time and again where I thought for sure this candidate is a shoe-in, they sound just right, the CV is just right and then you see the code getting turned in and I’m like, “No way. No way are we hiring this person.” And the other way has been true as well. I’d go like, “I don’t know about this guy or this woman Eeh, I don’t know.” and then they turn in their code stuff and I’m like, “Holy shit, can that person be on my team tomorrow preferably?” The capacity to evaluate work product is a superpower when it comes to hiring.
So, there is something of this where you need the vision, you need it anchored by the reality of knowing enough about what’s possible, knowing enough about physics, knowing enough about software that you’re not just building bullshit. There are plenty of people who can tell a group of engineers, “No, just do it faster,” but that’s not a skill, it’s got to be anchored in something real. But it’s also got to be anchored in, it’s a tired word, but a passion for the outcome to a degree where you get personally insulted if a bad job is done. This is what I’ve been writing about lately with Apple, they’ve lost that asshole who would show up and tell engineers that what they did was not good enough in ways that would actually perhaps make them feel a little small in the moment but would spark that zest to really fix it. Now they have a logistics person who’s very good at sourcing components and lining up production Gantt charts but you’re not getting that magic.
Now, what’s interesting with that whole scenario was I actually thought how well Tim Cook ran things and has run things at Apple for so long that maybe we were wrong, maybe we were wrong about the criticality of Steve Jobs to the whole mission, maybe you could get away with not having it. I think the bill was just going to come later and now it has, Apple is failing in all these ways that someone who would blow up Steve’s ghost and really exalt him would say like, “See, this is what’s happening now.” So, the other thing here too, of course, is it’s impossible to divorce your perception of what’s a critical component of the system and the messy reality of a million different moving parts in the reality of life and you should be skeptical about your own analysis and your own thesis at all time.
But then in the early 2000s, Apple emerged as a credible alternative because they bet the new generation of Macs on Unix underpinnings and that allowed me to escape from Microsoft and suddenly I became one of the biggest boosters of Apple. I was in my graduating class at the Copenhagen Business School, I started with the first white iBook, first person using Mac and, by the time we were done in graduating, I had basically converted half the class to using Apple computers because I would evangelize them so hard and demonstrate them and do all the things that a super fan would do and I continued that work over many years.
Jason and I actually in, I think, 2004, 2005, did an ad for Apple that they posted on the developer side where we were all about Apple is so integral to everything that we do and we look up to them and we are inspired by them. And that love relationship actually continued for a very long time, I basically just became a Mac person for 20 years. I didn’t even care about looking at PCs, it seemed irrelevant to me whatever Microsoft was doing which felt like such a relief because in the ’90s I felt like I couldn’t escape Microsoft and suddenly I had found my escape. And now I was with Apple and it was glorious and they shared so many of my sensibilities and my aesthetics and they kept pushing the envelope and there was so much to be proud of, so much to look up to.
And then that started to change with the iPhone which is weird because the iPhone is what made modern Apple. It’s what I lined up in 2007 together with Jason for five hours to stand in the line to buy a first generation product where Apple staff would clap at you when you walked out the store, I don’t know if you remember that. It was a whole ceremony and it was part of that myth and mystique and awe of Apple. So, I wasn’t in the market for other computers, I wasn’t in the market for other computer ideas, I thought perhaps I’d be with the Mac until the end of days. But as Apple discovered the gold mine it is to operate a toll booth where you don’t have to innovate, where you don’t actually even have to make anything, where you can just take 30% of other people’s business, there was a rot that crept in to the foundation of Apple and that started all the way back from the initial launch of the app store.
But I don’t think we saw at the time, I didn’t see at the time, just how critical the mobile phone would become to computing in general. I thought when the iPhone came out that like, “Oh, it’s like a mobile phone, I’ve had a mobile phone since the early ’90s.” Well, it wasn’t a mobile phone, it was a mobile computer and, even more than that, it was the most important computer or it would become the most important computer for most people around the world which meant that, if you like to make software and wanted to sell it to people, you had to go through that computer. And if going through that computer meant going through Apple’s toll booth and not just having to ask them permission which in and of itself was just an indignity. When you’re used to the internet where you don’t have to ask anyone for permission about anything, you buy a domain and you launch a business and, if customers show up, boom, you’re a success and, if they don’t, well, you’re a failure.
Now, suddenly, before you could even launch, you’d have to ask Apple for permission? That always sat wrong with me. But it wasn’t until we launched HEY in 2001 that I saw the full extent of the rot that has snuck into Apple’s apple.
And that was what’s funny, I thought our main obstacle here would be Gmail, it’s the 800-pound gorilla in the email space. Something like 70% of all email in the US is sent through Gmail, I think their world rates are probably in that neighborhood as well, they’re just absolutely huge. And trying to attack an enormous established competitor like that who’s so, actually, still loved by plenty of people and it’s free seems like a suicide mission. And it was only a mission we signed up for because we had grown ambitious enough after making Basecamp for 20 years that we thought we could tackle that problem. So, I thought, hey, this is dumb, I would not advise anyone to go head to head with Gmail, that seems like a suicide mission. We’re going to try anyway because, you know what, if we fail, it’s going to be fine, we’re just going to build a better email experience for me and Jason and the people at the company and our cat and that’ll be okay because we can afford to do so.
But when we got ready to launch after spending two years building this product, millions of dollars in investment to it, we obviously needed mobile apps. You’re not going to be a serious contender with email if you’re not on a mobile phone and you need to be there with a native client. So, we had built a great native client for both iOS and for Android and, as we were getting ready to launch, we submitted both of them to the app stores, got both of them approved on, I think, Friday afternoon for the iOS app and we then went live on Monday and we were so excited. Hey, world, we’ve been working on this new thing, I’d love for you to check it out. And of course, as with anything when you launch a new product, there are some bugs so we quickly found a few in the iOS client and submitted a new build to Apple. Hey, here’s our bug fixes, can you please update and that’s when all hell broke loose.
Not only were they not going to approve our update, they said, “Oh, wait a minute, we gave you permission to be in the app store but, I’m sorry, that was a mistake. We see that you’re not using our in-app payment system which means that we don’t get 30% of your business, you will have to rectify that or you can’t be in the app store.” And first I thought, well, it got approved already, we’re running on the same model we’ve run Basecamp on in the app store for a decade, if you’re not signing up through the app and we’re signing up our own customers on our own website and they’re just going to the app store to download their companion app, we’re going to be fine. That was the truth, right? That was why I never got so fired up about the app store. Even as Apple started tightening the screws, it was like, “My business was okay.”
Now, suddenly, my business wasn’t okay. Apple was willing to destroy HEY if we did not agree to give them 30% of all the signups that came through the iOS app. And it wasn’t just about the 30%, it was also about splitting and not longer having a direct relationship with our customers. When you sell an app in the app store, you’re not selling an app to a customer, you’re selling an app to inventory at Apple and then Apple sells an app to that customer. That customer has a purchasing relationship with Apple so, if you want to give discounts or refunds or whatever, it’s complete hell. If you want to easily support multi-platform, that’s complete hell. If someone signs up for HEY on their iPhone and they want to switch to Android but, that billing relationship, it’s tied to Apple, it’s complete hell. For a million reasons, I did not want to hand my business over to Apple, I did not want to hand 30% of our revenue over to Apple so we decided to do something that seemingly Apple had never heard before, we said no.
We’re not going to add the in-app payment. I don’t care if you’re threatening us, this is not fair, this is not reasonable, please approve. And of course they didn’t and it escalated and, after a couple of days, we realized, you know what, this isn’t a mistake, this isn’t going away, we’re going to be dead if they go through with this. If we’re not going to yield and give them the 30%, they’re going to kick us off unless we make such a racket, such noise that they will regret it and that’s exactly what then happened. We were blessed by the fact that we launched HEY one week before the WWDC, the Worldwide Developer Conference, where Apple loves to get up on stage and harp on how much they do for developers, how much they love them and why you should build their new devices and so on and so forth.
And then we also just happened to have a platform on the internet which is very convenient when you need to go to war with a $3 trillion company. So, I started kicking and screaming-
Now, we now learn the actual price tag was 10 times higher, right? Epic spend over 100 million. It would’ve destroyed us to take on Apple in the legal realm, only a company like Epic could do it. And only a company run by founders like Tim, like Mark could risk the business in the way that they did, the audacity they had to provoke the fight in the first place, which I thought was just incredible, and to stick with it for the long term. No board would’ve signed off on this lawsuit to a professional CEO, no freaking way. So, the fact that they’ve been able to beat Apple in also the most hilarious way possible, I think it’s just incredible. Because, remember, their first victory in the case was actually not much of a victory, there were about 11 counts in the trial, Apple basically won 10 of them and the judge awarded Epic this one little win that Apple couldn’t tell them not to link up to the internet to be able to do the payment processing.
So, they want this one little thing and, Apple, instead of just taking the 10 out of 11 wins and going, fine, you can have your little links but all these other rules stay in place decided to essentially commit criminal contempt of court as they’ve now been referred to for prosecution and angered the judge to such a degree that the rule of law in the US now is that you can launch an app in the app store and you don’t have to use in-app payment but you can have a direct billing relationship with a customer if you just link out to the open internet when you take the credit card and then hop back into the app. And we owe all of that to Tim and Mark, we owe all of that to Epic. We’re going to launch new apps any minute now, I hope, actually, in the next week to take advantage of this that revamp the HEY app so that people who download the HEY app off the Apple app store can sign up in the app and can then use the web to put in their credit card so we don’t-
One of the other Apple examples … And I know we’re racking on Apple a little bit here, and I don’t actually hate them. I really don’t. I am tremendously disappointed at the squandered relationship that did not need to be sold away for so little. Now I understand that the app store toll booth is actually a pretty big business. It’s multiple billions, but Apple is a trillion-dollar company. And I think in the lens of history, this is going to come off as a tremendous mistake, and I think it’s already coming off as a tremendous mistake. The flop that was the Vision Pro was partly because Apple had pissed off every other developer.
No one was eager to come build the kind of experiences for their new hardware that would perhaps have made it a success. So when you’re on top and you have all the cards, you can dilute yourself into thinking that you can dictate all terms at all times and there are no long-term consequences. Apple is learning, finally, the fact that there are long-term consequences and that developers actually are important to Apple’s business and the relationship is not entirely one-sided. We don’t owe our existence to Apple and Apple alone. We’ve built our own customer bases.
Apple has been beneficial to the industry. I’m glad the iPhone exists, da da da da. It’s not that it doesn’t go both ways, but Apple wants it only one way. And I think that is a mistake and it’s a mistake that was avoidable and, A, that’s disappointing. Certainly disappointing for me. I’ve literally spent 20 years evangelizing this shit, right? I’ve spent so much money buying Apple hardware, excusing a bunch of things they’ve done over the years, and then for what? For the fact that you wanted 30% of something that I created in the most unreasonable way possible. Couldn’t we have found a better way to do this? I think they’re going to get forced to do a better way. But did you also have to go through the indignity of having a criminal contempt charge against you getting referred to prosecution? It just seems so beneath Apple, but it also seems so in line with what happens to huge companies who are run by “professional managers” rather than founders and unreasonable people.
So they have to wash that off first, I think, before they find their way back. But Apple’s been in a mora as before. I mean, Wozniak and Steve Jobs started this thing in the garage, has great success with the Apple II. He hands the company over to a sugar drink salesman who tanks the company into the ’90s. He doesn’t learn the lesson, spends the next 20 years building up this amazing company, then hands the company over again to a logistics person who presumably had more redeeming qualities than the first guy who put in charge, but still ends up leading the company astray.
Now this is the norm. The norm is that great companies don’t last forever. In the long arc of history, almost no company lasts forever. There are very few companies around that was here a hundred years ago, even fewer 200 years ago, and virtually nothing that are a thousand years old outside of a handful of Japanese swords makers or something like that, right? So you can get deluded into thinking that something is forever when you’re in the moment and they seem so large.
Apple could absolutely stumble and I think they have more reason to stumble now than ever. They’re behind on AI, terribly behind. Their software quality is faltering in a bunch of ways. The competition is catching up on the hardware game in part because TSMC is not an Apple subsidiary, but a foundry that services AMD and Nvidia, and others who were now able to use the same kind of advanced processes. This is something I learned after not looking at PC hardware for the longest time, that holy smokes, AMD actually makes CPUs that are just as fast, if not faster, than Apple’s. They’re not quite as efficient yet because ARM has some fundamental efficiencies over x86, but they’re still pretty good.
So Apple should have reason to worry. Apple shareholders should have reason to be concerned, not just about all these stumbles, but also by the fact that Apple is run by old people. Apple’s board has an average age of, I think, 75. Their entire executive team is above 60. Now, that sounds horribly ageist. And in some ways, it a little bit is, in the same way I’m ageist against myself. I’m 45 now. And I have to force myself to really get into AI because it is such a paradigm shift and a lot of people, when they reach a certain age, are just happy to stay with what they know. They don’t want to go back to being a beginner. They don’t want to go back to having to relearn everything. And I think this is a little hard for me at 45. How the hell do you do that at 75?
And looking back on it now, it almost seems crazy, like there’s this fork in the road of reality where if that hadn’t happened and I had been sitting here now not being a father, not having a family, the level of regret knowing what I know now about the joys of having that family would have been existential. I don’t know if they would have been devastating. I think men have a little bit of a longer window to pursue these things than women do. There are just certain biological facts, but ending up with the family I have now, ending up with my three boys, have been just a transformative experience in the sense that here’s something that turned out to be the most important thing. And it was an open secret. Not even an open secret. It was an open truth through all of history.
You listen to anyone who’s ever had children, they will all say, “My children are the most important to me.” Yet somehow that wisdom couldn’t sink in until you were in the situation yourself. I find those truths fascinating when you can’t actually relay them with words. I can tell you, “Hey, Lex, what are you doing? Get a wife, make some kids, get a move on it.” And these are just words. They’re not communicating the gravity of what it actually feels to go through the experience. And you can’t really learn it without going through it.
Now, of course, you can be influenced and whatever, we can all help contribute and little sparks and little seeds can grow in your mind about it, but it still has to happen. And now that I am in this situation and just the sheer joy on a daily basis where you think your level of life satisfaction is on a scale of one to 10.
And you realize, “I don’t know.” I did not know. I did not know that the scale was much broader. And I’ve often talked about the joys of having kids and just seeing your own DNA, which is remarkable to me because literally that’s been the pursuit of humans since the dawn of time. I am here today because, whatever, 30,000 years ago, some Neanderthal had the same realization that I should procreate and I should continue my bloodline. And that all amounts to me sitting here now, but it didn’t become a practical reality to me before meeting the right woman. And I think that that’s sometimes not part of the conversation enough that there’s something broken at the moment about how people pair up in the western world.
I’ve done a lot of things in my life. I’ve built software, I’ve built companies, I’ve raced cars, I’ve done all sorts of things, and I would trade all of it in a heartbeat for my kids. That’s just a really fascinating human experience, that the depth of that bond is something you can’t appreciate before you have it. But I also think there is a role to play to talk it up because we’re being bombarded constantly with reasons why not to. Oh, it’s too expensive.
Well, you could get divorced and then you might lose half. There’s all these voices constantly articulating the case against marriage, the case against having children, that those of us who’ve chosen to do the traditional thing, to get married and to have children, have an obligation to talk it up a little bit, which would have seen ridiculous again 50 years ago that you’d have to talk up something so fundamental of that.
But I have become obligated in that sense to do just that, to talk it up, to say, “You know what? You can look at everything that I’ve done and if you like some of those parts, realize that to me, in the situation, the kids, the family, the wife is more important than all of it.” And it sounds like a cliche because you’ve heard it a thousand times before, and by becoming a cliché, maybe you start believing it’s not true, that it’s just something people say, but it is reality.
I know almost no parents that I have personal relationships with that don’t consider their children to be the most important thing in their life.
And then you experience it. It’s like the poof. And it happened so quickly, too. This is what I found fascinating. It happens before that little human is even able to return any words to you that the love you develop to an infant, it happens quite quickly, not necessarily immediately. I don’t know, different people have different experiences, but it took me a little bit. But then once it hit, it just hit like kick of a horse. And I love that it’s also just such a universal experience that you can be the most successful person in the world, you can be the poorest person in the world, you can be somewhere in the middle, and we share this experience that being a parent, for most of them, turns out to be the most important thing in their life.
I’m not saying you shouldn’t have divorces. I’m not saying return to times past. I am saying, though, that civilization over thousands of years developed certain technologies for ensuring the continuation of its own institutions and its own life that perhaps we didn’t fully appreciate. I mean, again, this is something Jordan Peterson and others are far more articulate to speak about, and that I’ve learned a lot to just analyze my own situation. Why is it that this incredible burden it is, to be responsible for someone else’s life that you brought into this world is also the most rewarding part of existence? That’s just curious. Before I heard Peterson articulate the value of taking on the greatest burden you know how to carry, I always thought about burdens as a negative things. Why would I want the burden of a child? I might screw it up. I might be a bad parent. They might have bad … All this stuff, right? All the reasons why you shouldn’t. And so few voices articulating why you should.
You make life better in a million different ways and somehow we end up more miserable. Why is that? Why is it that humans find meaning in hardship? And I think some of that is that it’s a difficult question to answer through science. And again, Peterson articulates well this idea that you have to find some of it through art, some of it through authors, some of it through different … I was just about to say modes of knowing before I stopped myself because that sounds like woo bullshit. But there are different ways to acquire those deep lessons that paper is not going to tell you.
I was just about to say burden, and I think that’s exactly how it often gets presented, especially from a feminist perspective, that carrying for your own children is some unpaid labor that has to be compensated for in some specific way beyond the compensation of what bringing life into this world, raising wonderful humans. There’s something screwy about that analysis that I actually think the modern trad movement is a reply against. Whether they have all the answers, I’m certainly not sure of either, but there’s something that’s just not right in the analysis that children are a burden and that if woman chooses to stay at home with the kids, that that’s some failure mode of feminist ambition. I think that’s actually a complete dead end. Now, depends on different people, different circumstances. I can just speak to my life being married to a wonderful woman who have decided to be home with the kids, at least at their early age, and taken on a lot of those responsibilities. Now, it doesn’t mean there isn’t plenty of ways that I have to be part of that and have to chip in, but it’s allowed me to continue to work the 40 hours a week that I’ve always worked. But it’s made the 40 hours more strict. I have a schedule where I wake up, whatever, 6:30, and we have to get out of the door a little before 8:00. I usually have to play at least one or two rounds of Fortnite with my youngest and sometimes middle child.
Then take the kids to school, get in, start work at, I don’t know, 8:39, then work until 5:00, 5:30, sometimes 6:00, but then it’s dinner and I have to be there for that, and then I have to read to the kids. And by the time that’s done, I don’t want to go back to work. So my work time really is 9:00 to 5:00, 9:00 to 6:00, depending of whatever is going on. Sometimes there’s emergencies and you have to tend to them, but it’s made it more structured and I found some benefit in that and I found some productivity in that, that I can’t goof around quite as much, that the day will end at around 5:36. That’s just if I didn’t accomplish what I wanted to do today, if I get to that time, it’s done. I’m over. I have to try again tomorrow. Whereas before having a family and before having kids, I could just not do it and just make it up in the evening.
So in that way, it’s made me more structured, but it hasn’t really changed my volume of work all that much. I still work about the same amount of hours. And that’s, by the way, enough. This is one of the key points we make in It Doesn’t Have to Be Crazy at Work, the latest book we wrote, is that there’s enough time. 40 hours a week is actually a ton if you don’t piss it away. Most people do piss it away. They piss it away in meetings, they piss it away on just stuff that doesn’t matter when even three hours, four hours of concentrated uninterrupted time every day would move the goals they truly care about way down the field.
Those 80 hours are full of all sorts of fluff that you label work, but that I would laugh at, and that most people laugh at, that you would laugh at if you actually did the analysis of where’s that time going. Most of the important stuff that have to be done is done in these uninterrupted chunks of two hours here or four hours there or five hours there. The hard part is making sure you get them in the whole piece. So don’t give me that. There’s time enough. And also, what’s so important that it ranks above continuing your lineage? I think there’s just some ancient honor in the fact that, again, this DNA that’s sitting on this chair traveled 30,000 years to get here, and you’re going to squander all that away just so you can send a few more emails.
But when I was 25, I realized I wanted to spend more time in the U.S. I wasn’t sure yet that I was going to move there. That turned out later to be true, but I knew that if I wanted to spend time in the U.S., I needed to have a driver’s license. I was not going to get around very well if I didn’t know how to drive a car.
So I got a driver’s license at 25. Then ended up moving to the U.S. later that year, and I’d always been into video games, racing video games. Metropolitan Street Racer on the Dreamcast was one of those games that really sucked me into … It was the precursor to Project Gotham, which was the precursor to essentially, Forza Horizon, I think.
Then I got my driver’s license at 25 and moved to the U.S., and then two years later a friend that I’d met in Chicago took me to the Chicago Autobahn Country Club, which is this great track about 45 minutes from Chicago. And I sat in a race car and I drove a race car for the first time, and I had the same kind of pseudo-religious experience I did as when I started working on Ruby, where I did maybe 20 laps in this basically, a Mazda race car from, I think it was the ’90s or something, a pretty cheap race car, but a real race car. Single-seater, manual gearbox, but exposed slick wheels, all the stuff.
And after having had that experience, first of all it was just the most amazing thing ever. The physical sensation of driving a race car is really unique. And I think if you’ve driven a car fast, you have maybe a 2% taste of it. The exposure to the elements that you get in a single-seat race car, especially one like that where your head is actually out in the elements, you can see the individual wheels and sensation of speed is just so much higher, is at a completely different level.
How you want to drive it is just at the limit of adhesion where you’re rotating the car as much as your tires can manage and then slightly more than that. And playing at it, keeping it just at that level because when you’re at the level of, or at the limit of adhesion, you’re essentially just a tiny movement away from spinning out. I mean, it doesn’t take much. Then the car starts rotating. Once it starts rotating, you lose grip and you’re going for the wall.
That balance of danger and skill is what’s so intoxicating, and it’s so much better than racing video games too because the criticality is taken up two notches. I often think about people who really like gambling, where I think, “Aren’t you just playing poker? No, the point is not poker. Poker is maybe part of it, but the point is that I could lose my house.” Right? That’s the addiction that some people get to gambling, that there’s something real on the line.
When you’re in a race car, there’s something very real on the line. If you get it wrong, at the very least you’re going to spin out and probably hit a wall and it’s going to be expensive. At the very worst, you’re not getting out alive. And even if modern race cars have gotten way safer than they used to be, there is that element of danger that’s real, that there are people who still get seriously hurt or even killed in a race car.
It’s mercifully rare compared to what it used to be when those maniacs in the ’60s would do Formula 1 and whatever, 13% of the grid wouldn’t make it to the end of the year because they’d just die in a fiery flaming fireball, but there’s still some of it there.
And I think that since that there’s something on the line really contributes to it, but it’s more than that. It’s not just a physical sensation. There’s activation of all your forces. There’s the flow, and I think that really cements why I got addicted, because I love that flow I got out of programming, but getting flow out of programming is a very inconsistent process.
I can’t just sit down in front of a keyboard and go like, “All right, let’s get the flow going.” It doesn’t happen like that. The problem has to be just right. It has to meet my skills in just the right moment. It’s a bit of a lottery.
In a race car, it’s not a lottery at all. You sit down in that car, you turn the ignition, you go out on track and I get flow virtually guaranteed because you need, or I need at least 100% of my brain processing power to be able to go at the speed I go without crashing. So there’s no time to think about dinner tonight or the meeting next week or product launch. It’s completely zen in actually, the literal sense of the word.
I think of someone who’s really good at meditation, that’s probably kind of state they get into where it’s just clear you’re in the now, there’s nothing but you and the next corner. That’s a really addictive experience.
So after I’ve had that, I couldn’t get enough. I kept going to the track every opportunity I got. Every single weekend for about four years, I would go to the track. And by the end of that time, I’d finally worked up enough skill and enough success with the company that I could afford to go “real racing.”
So I started doing that. I started driving these Porsches, and then as soon as I got into that, as soon as I got into “real competition,” I was like, “I wonder how far you can take this?” And it didn’t take that long before I decided, “You know what? I can take this all the way.”
My great hero in racing is Tom Kristensen, fellow Dane. The Mr. Le Mans, as they call him, the greatest endurance race in the world. The 24 Hours of Le Mans has been won more times than any other by Tom Kristensen. He won the race nine times. So Tom just really turned me on to Le Mans. I’d been watching Le Mans since, I think, the ’80s. I have my earliest memories of watching that on TV. The race has been going since, I think, ’20s, but in the ’80s I got kind of into it.
And then in the late ’90s, early 2000s when Tom started winning, I, like pretty much every other Dane started watching the race almost religiously. So I thought, “You know what? I want to get to Le Mans.”
This is the magic thing about racing, that if I get into basketball, I can’t set a realistic expectation that I’m going to play in the NBA, that I’m going to go to the finals, or I get into tennis and I’m going to play at Wimbledon. That just doesn’t happen. But racing is special in this way because it requires a fair amount of money to keep these cars running. It’s really expensive. It’s like having a small startup. You need to fly a bunch of people around the world and buy expensive equipment and so forth. So you need a bunch of capital, and I had some through the success of the company so I could do it, which meant that I could get to Le Mans.
So I set that as my goal. “I want to get to Le Mans,” and I started racing in real competition 2009, and three years later in 2012, I was at the grid of Le Mans for the first time.
And this is funny about Le Mans too, it starts at around 4:00 in the afternoon, so you’ve already been up for half a day by the time the race starts and then there’s 24 hours to go before you’re done, and you’ll be in the car for anywhere from usually an hour and a half to a maximum of four hours. The regulations say four out of six is the max you can do.
I’ve spent perhaps two and a half hours in a single stint at Le Mans. It’s pretty taxing. You’re going 200 miles an hour into some of these turns and there’s another 60 cars on track. Whenever I’m in my normal category, which is the LMP2 category, I have GT cars which are more like a Ferrari and a Porsche that I have to overtake, and then I have these hyper cars, which is the top-class that are overtaking me.
So you got a lot going on and you got to stay sharp for two and a half hours straight to do that. That is just a guaranteed way to get incredible flow for long, long stretches of time. That’s why you get addicted to it. That was why I got addicted.
I’ve been managing to keep this professional driver behind me for 40 minutes, and he finally passes me, but we just keep the battle on for the whole time. And it really just shows both these kinds of cars, the Le Mans Prototypes. We don’t actually ever touch. We get within about an inch and keep going around the Shanghai Circuit to-
The difference between us and the professionals is the professionals can do it every time, or more or less every time. So I can’t be this good all the time. When everything is just right, I can be competitive with professional drivers, but that’s not how you win championships. That’s not how you get paid by factories to drive. You got to be good every time you go out.
So that’s a huge difference. But some of it was also just, I really put my mind to it. By the time I realized race cars is what I want to do as my serious hobby, I put in thousands of hours.
Endurance racing is a team sport. Not only do you have your mechanics, you usually have co- drivers. So when I crash, I just feel like, “Damn it, I could have avoided this.”
I’ve gotten lightly hurt a few times. I actually had, the year we won 24 Hours of Le Mans in our class, I’d been training in this Formula 3.5 car. It’s a really fast car, it’s a really nice exercise to do, but it’s also, it doesn’t have power steering. So some of these race cars, especially the open-seaters, they don’t have power steering, which means that the steering wheel is basically, directly connected to the front wheels.
So if you crash one of those cars and the front wheels suddenly turn, you’re really going to hurt your hands if you don’t get your hands off the wheel. I hadn’t raced enough of those cars to know that I had to get, or to have the instinct, to have developed the instinct that I had to get my hands off the wheel, so I didn’t and I really hurt my hand.
This was just, I think a month before the 24 Hours of Le Mans. So I thought, “Oh man, I’m going to have to miss it this year.” I had, not a cast. It was just seriously sprained. And then somehow, miraculously a week before the event, I was like, “Oh yeah, actually it’s okay now.” So, got to do it.
And that would’ve been grave regret if I would’ve seen my team go on to win the race and I would have to sit on the sidelines. But I really have been quite fortunate in the sense that most of my crashes have just been expensive or sporting-inconvenient. They’ve never been something where I got seriously hurt, but I’ve seen plenty of people who have.
In fact, my co-driver this year, and for several years, Pietro Fittipaldi drove a race car at Spa. Spa is one of the great racetracks of all time and it has this iconic corner called Eau Rouge, which is probably the most famous corner in all of Motorsports that has a great compression before you climb uphill.
It’s extremely fast, very difficult corner. And just as he does the compression, his car basically sets out and he loses his power steering and he drives straight into the wall and breaks both his legs and basically, face the prospect that maybe his career was over. I’ve had other teammates and people I know have serious injuries that’s really hurt them.
And yet what’s funny, as you say, you’d think that would sink in. The year before we won in 2014, that same car had a Danish driver in it at Le Mans at the race I was driving, who died. He lost control of the car when there was a bit of rain on the track, and the track was unfortunately designed in such a poor way that there was a very big tree right behind the railing. And he hit that tree at full speed, pulled 90gs and was dead on the spot, which was just such an extremely awful experience to go through.
I finished second that year, which should have been cause for a bunch of celebration, but it was just tainted by the fact that not only did a driver die, a fellow Dane died, a guy I knew died. That was pretty tough.
I’d made minor mistakes over the years, but nothing that really set us out. And at the race last year when it was raining, I first clobbered a Ford Mustang when I made an overambitious pass on a damp part of the track and couldn’t stop in time and then felt absolutely awful as I sat in the gravel pit for two laps and knew that our race was over, a race where we were highly competitive.
You’re not blessed with a competitive car, a competitive team and competitive setup every year. I know how rare that is. So to know that we had had a chance that year and I sort of squandered it felt really bad. But that got compounded when I got back on track, barely made it another stint and then put it into gravel trap again when it started raining on the entrance into Porsche.
So this is part of why racing is so addicting too because the highs are very, very high. When you win a race like the 24 Hours of Le Mans, it feels just incredible. There’s so much emotion, but if you fuck it up, the lows are very, very low.
Are you looking around using your eyes? Are you smelling things? Are you listening, just feeling the wind or are you looking at the field, too? How’d you not hit that guy at all? You get close within inches, right? So you have to pay attention to that, too.
The car is about two meters wide and it’s quite long, five meters and you can’t see everything. The mirrors are actually kind of shit. There’s no rear-view mirror in these cars. You can’t see out the back. You can only see through your two side mirrors, but you form this intuitive mental model when you get good enough at this.
But what I actually pay attention to most is I run a program. What I try to do when I go to a racetrack is I try to load up the best program I know how for every single corner. What’s my brake point? What’s my acceleration point? What’s my brake trailing curve? And I try to pick up that program in part just by finding it myself and how fast I can go. But even more so than that by copying my professional competitors, or not competitors, co-drivers.
So I usually always race with a pro, and modern race cars produce an absolute enormous amount of data, and you can analyze all that data after each outing. You can see an exact trace of how much you pushed the brake pedal, how much you did in terms of steering inputs, when you got on the gas. You can see every millisecond you’re losing is evident in those charts.
So what I try to do is I try to look at the chart and then I try to load that in, and that’s what I got to do. “Oh, in this corner 17, I have to be 10 bar lighter on the brake,” so I try to load that program in and then I try to repeat it.
Now, then there are all the things that changes. Your tires change quite a lot. These tires are made to only last 40 minutes in many cases. Sometimes at Le Mans we can go longer, but at some racetracks they’ll last as little as 40 minutes before they really fall off. So you got to manage that, that the grip is constantly changing, so your program have to suddenly fit those changing circumstances.
And then in endurance racing, you’re constantly interacting with other cars because you’re passing slower classes or you’re getting passed by a faster class. So that’s part of the equation. And then you’re trying to dance the car around the limit of adhesion.
So you got all those factors playing at the same time. But above all else for me is to try to become a robot. How can I repeat this set of steps exactly as I’m supposed to for two and a half hours straight without making 100 milliseconds worth of mistakes?
And obviously, the best race car drivers just feel like an intuition. I have some intuition. I don’t have all of it, so I do occasionally spin my car, but that’s the challenge.
Then the other thing is you have to have really good reaction time. And when you look at great Formula 1 drivers, they can generally have a reaction time of just under 200 milliseconds, which is awesome, and even 10 milliseconds’ difference makes a huge difference.
You’ll see it when the Formula 1 grid, for example, they do a standing start and you see the five red lights come on. And when the last light goes out, they’re supposed to release the clutch and get going, and they can time this. So you can see exactly who has the reaction time.
And even being off by 20 milliseconds can make the difference of whether you’re in front or behind at the first corner.
They’re coming up to this incredibly fast corner. It’s very dangerous, and Alonso basically accounts, “I was going to make the pass because I knew he had a wife and kids at home.”
And it’s a little hard to compare through the ages who’s the greatest driver of all time. I think there’s a fair argument that Senna is, but we don’t have the data. We don’t know who he was up against. How would he fare if we pitted him against Max Verstappen today?
I do think sometimes that you can have a bit of a nostalgia for the all-time greats, but the world moves forward and new records are being set all the time and the professionalism keeps improving, sometimes to the detriment of the sport, I think.
There’s a lot of professional drivers who are not only just very good at driving, but are very good at being corporate spokespeople, and it used to be quite different. There used to be more characters in racing that had a bit more personality that they were allowed to shine because there weren’t a billion sponsorships on the line that they were afraid to lose.
And then I had the option in 2010. I’ve had the car ever since. I’m never ever going to sell it. It’s truly a masterpiece that’s stood the test of time. There’s some great cars from history that are recognized as being great in their time. This car is still great.
So they don’t do that in Spain. I mean, in most places, except for the German Autobahn, they get pissy if you go twice the speed limit for all sorts of fair reasons. I’m not advocating that you should be going much more than that, but there are certain special roads where you can’t open things up and no one’s in harm’s way, and that’s an incredible sensation. And I do think that some of those speed limits actually are kind of silly, and I’m not just saying that in a vacuum.
In Germany, they have the glorious Autobahn, and on the Autobahn there is no speed limit in a bunch of segments. And they’re so committed to their speed-limitless Autobahn, which is by the way, very weird of Germans. They usually love rules. They’re usually very precise about it, and then they have this glorious thing called the Autobahn.
There was a great case a couple of years ago where a guy took out a Bugatti Chiron, went 400 kilometers an hour on the Autobahn, and he filmed it and put it on YouTube and a case was brought against him because even though they don’t have a speed limit, they do have rules that you can’t drive recklessly, and he won the case. He wasn’t driving recklessly. He was just going very, very fast.
I’ve done the Autobahn a couple of times. My wife and I went on a road trip in Europe in 2009, and I got the Lamborghini Gallardo we were driving up to 200 miles an hour. And I’d driven 200 miles an hour or close to it on a racetrack before. That feels like one thing. Driving on a public road 200 miles an hour feels really, really fast.
Speed is just intrinsically, really fun. I don’t know anyone I’ve taken out in a fast car … Well, actually I do know a few people. Most people I take out in a fast car, they grin. It’s a human reaction to grin when you go really fast.
And it’s really interesting with speed, is that the difference between going, let’s say 150 and 160 doesn’t feel that much actually, those 10 miles an hour. But the difference between going 190 and 200 feels crazy faster, which as a percentage change is actually less than going from 150 to 160, but there’s some sense of exponentiality once you get up to those limits, where it’s just on a completely different level.
I do like a big screen, but I don’t want multiple screens. I’ve never found that, that really works with my perception. I want to be able to just focus on a single thing. I don’t want all of it all over the place, and I’ve always used multiple virtual desktops and being able to switch back and forth between those things.
But the setup I have today is Linux, I switched to a little over a year ago after I finally got fed up with Apple enough that I couldn’t do that anymore. And then I use this low-profile mechanical keyboard called the Lofree Flow84, which is just a …
And the keyboard, when you look at it like this, it looks plain. It doesn’t look extravagant. But the tactile sensation you get out of pushing those keys, the thocky sound that you hear when the keys hit the board, it’s just sublime. And I’m kicking myself that I was in this Mac bubble for so long that I wasn’t even in the market to find this.
I knew mechanical keyboards existed, but to be blunt, I thought it was a bit of a nerd thing that only real nerds that were much more nerdy than me would ever care about. And then I got out of the Apple bubble and suddenly, I had to find everything again. I had to find a new mouse, I had to find a new keyboard, I had to find everything. And I thought, “All right. Let me give mechanical keyboards a try.” And I gave quite a few of them a try.
The Keychron is one of the big brands in that. I didn’t like that at all. I tried a bunch of other keyboards. And then I finally found this keyboard and I just went like… Angels are singing. Where have you been my whole life? We spend, as programmers, so much of our time interacting with those keys. It really kind of matters.
In a way, I didn’t fully appreciate it. I used to defend the Apple Magic Keyboard like, “Hey, it’s great. It’s actually a great keyboard.” And I think for what it is, this ultra-low profile, ultra-low travel, it’s actually a really nice keyboard. But once you’ve tried a longer-travel mechanical keyboard, there’s no going back.
I feel the same way about Linux. So I’ve been using Linux on the server since late ’90s probably. We ran servers on Linux back then. I never seriously considered it as a desktop option. I never ran Linux before directly myself. I always thought, “Do you know what? I want to focus on programming. I don’t have time for all these configuration files and all this setup bullshit and whatnot. And Apple is close enough. It’s built on Unix underpinnings. Why do I need to bother with Linux?”
And again, it was one of those things. I needed to try new things and try something else to realize that there is other things other than Apple. And again, it’s not because I hate Apple. I think they still make good computers. I think a lot of the software is still also pretty okay. But I have come to realize that as a web developer, Linux is just better.
It’s not pretty good. It’s not like I still need to spend two hours on it. It’s perfect. Because you can encode all aspects of the development environment into this. And I didn’t know. I didn’t even know, to be fair, that Linux could look as good as it can.
If you look at a stock Ubuntu or Fedora boot, I mean, not that it’s ugly, but I’d pick the Mac any day of the week. You look at Omakub, I mean, I’m biased here, of course, because I built it with my own sensibilities, but I look at that and go like, “This is better. This is beautiful.”
And then you look at some of those true Linux ricing setups where people go nuts with everything. And you go, “Oh, yeah, I remember when computers used to be fun in this way,” when there was this individuality and this setup, and it wasn’t just all bland, the sameness. And I think that’s the flip side sometimes of something like Apple, where they have really strong opinions and they have really good opinions and they have very good taste, and it looks very nice, and it also looks totally the same.
And Linux has far more variety and far more texture and flavor, sometimes also annoyances and bugs and whatever. But I run Linux now. It’s Ubuntu-based with the Omakub stuff on top, the Lofree keyboard. I use a Logitech. What’s it called? The MX 3 mouse, which I love how it feels in my hand. I don’t love how it looks.
I actually was a Magic Mouse stan for the longest time. I thought it was genius that Apple integrated the trackpad into a mouse, and I used that. And I always thought it was ridiculous that people would slag it just because you had to charge it by flipping it over because the battery would last for three months and then you’d charge it for half an hour.
I thought that was a perfect compatibility with my sensibilities. I don’t mind giving up a little inconvenience if something is beautiful, and that Magic Mouse is beautiful. But it wasn’t going to work on Linux, so I found something else. The MX 3 is nice, but I sometimes do wish the Magic Mouse… That’s pretty good.
Even on Windows, you can’t get it that smooth. You can get close. You can’t get it that smooth. On macOS, for whatever reason, Apple insists on having this infuriating animation when you switch between virtual desktops, which makes it just that you don’t want to. You don’t want to run full-screen apps because it’s too cumbersome to switch between the virtual desktops. The kind of immediacy that you can get from a wonderful Linux setup in that regard is just next-level.
I think these days, a lot of people would just use VS Code. VS Code exists in the same universe as TextMate in some ways. And actually, I think it’s compatible with the original TextMate bundles, the original TextMate format. So it really trailed a path there, but it also just didn’t evolve.
Now, a lot of people saw a huge problem with that. They were like, “Oh, it needs to have more features. It needs to have all these things.” I was like, I’m happy with this text editor that hasn’t changed at all basically when Allan stopped working on it for a decade or more. I don’t need anything else. Because as our original discussion went, I don’t want an IDE. I don’t want the editor to write code for me. I want a text editor. I want to interact with characters directly.
And Neovim allows me to do that in some ways that are even better than TextMate, and I love TextMate. But Vi, as you know, once you learn the commands, and it sounds… I sometimes feel like Vi fans overplay how difficult it is to learn because it makes them perhaps seem kind of more awesome that they were able to do it. It’s not that difficult. And it doesn’t take that long, in my opinion, to learn just enough combo moves to get that high of, “Holy shit. I could not do this in any other editor.”
The key to Neovim is to realize that you don’t have to build the whole damn editor yourself. So a lot of Neovim stans are like, “Here’s how to write the config from scratch.” Over 17 episodes, that’s going to take you three weeks. I don’t care that much.
I love a great editor, I love to tailor it a little bit, but not that much. So you have to pair Neovim with this thing called LazyVim. LazyVim.org is a distribution for Neovim that takes all the drudgery out of getting an amazing editor experience right out of the box.
Now, I understand that that is part of what separates it and why I don’t see the benefits. I only see the costs. I see the extra typing, I see the type gymnastics that you sometimes have to do and where a bunch of people give up and just do any instead, right? That they don’t actually use the type system because it’s just too frustrating to use.
So I’ve ever only felt the frustration of TypeScript and the obfuscation of TypeScript in the code that gave me no payoff. Again, I understand that there is a payoff. I don’t want the payoff. So for my situation, I’m not willing to make the trade and I’m not willing to take a language that underneath is as dynamic of a language as Ruby is and then turn it into this pretend statically typed language. I find that just intellectually insulting.
There are other languages that does that, especially the Perl or Python would be rather similar, but Go would not, Java would not. There’s a lot of other languages that have a lot more ceremony and boilerplate. Ruby has none of it. So it’s a wonderful starting language.
There’s a book called Learn to Program by Pine that uses Ruby essentially to just teach basic programming principles that I’ve seen heavily recommended. So that’s a great language.
Some people learn languages just for the fun of them. Most people do not. Most people learn it because they have a mission; they want to build a program, they want to become a programmer. So you got to use it for something real. And I actually find that it’s easier to learn programming that way too because it drives your learning process.
You can’t just learn the whole thing upfront. You can’t just sit down and read the language specification and then go like, “Ooh,” like Neo, “Now I know kung fu. Now I know Ruby.” It doesn’t download that way. You actually have to type it out in anger on a real program.
If you’re making video games, you should probably go off and learn C++ or C or something else like that. But if you’re in the realm of web applications, you got to learn JavaScript. Regardless of what else you learn, you got to learn JavaScript.
I’m not someone who prescribes just Ruby for everything. Just once you reach the level of abstraction that’s involved with web applications, Ruby is superb. But if you’re writing, for example, a HTTP proxy, Go is great for that. We’ve written quite a few HTTP proxies lately at the company for various reasons, including our cloud exit and so forth.
And Kevin, one of the programmers I’m working with, he writes all of that in Go. Go just have the primitives and it has the pace and the speed to do that really well. I highly recommend it. If you’re writing an HTTP general proxy, do it in Go. Great language for that. Don’t write your business logic in Go. I know people do, but I don’t see the point in that.
And I’ve come to accept that about myself, even though, as we talked about, when I was a kid, I really wanted to become a games programmer. And then I saw what it took to write a collision-detection engine, and I go like, “Yeah, that’s not me at all.” I’m never going to be into vector matrix manipulation or any of that stuff. It’s way too much math. And I’m more of a writing person than of a math person.
But the modern identity that most programmers adopt when they’re trying to be serious is software engineer, and I reject that label. I’m not an engineer. Occasionally, I dabble in some engineering, but the vast majority of the time, I’m a software writer. I write software for human consumption and for my own delight.
I can get away with that because I’m working in a high-level language like Ruby, working on collaboration software and to-do lists and all the other stuff. Again, if I was trying to apply my talent to writing 3D game engines, no, that’s not the right mindset. That’s not the right identity.
But I find that the software engineering identity flattens things a little bit. I’d like to think that we have software writers and software mathematicians, for example, and then those are actually richer ways of describing the abstraction level that you’re working at than “engineer.”
That writing phase to me is just addictive. And I find that when programming is the best, it’s almost equivalent exactly to that. You also have to solve a problem. You’re not just communicating a solution. You have to actually figure out what are you trying to say. But even writing has that.
Half the time when I start writing a blog post, I don’t know exactly which arguments I’m going to use; they develop as part of the writing process. And that’s how writing software happens too. You know roughly the kind of problem you’re trying to solve. You don’t know exactly how you’re going to solve it. And as you start typing, the solution emerges.
Very often when we look at the big decisions we’ve had to make, they’ve come from the gut, where you cannot fully articulate why do I think this is the right thing. Well, because I’ve been in this business for 20 years and I’ve seen a bunch of things and I’ve talked to a bunch of people, and that is percolating into this being the right answer.
A lot of people are very skeptical about that in business or unable to trust it because it feels like they can’t rationalize. Why are we doing something? Well, because I feel like it, damn it. That’s a great privilege of being a bootstrapped, independent founder who don’t owe their business to someone else and doesn’t have to produce a return because I feel like a lot of the bullshit really creeps in when you’re trying to rationalize to other people why you do the things you do and why you take the decisions that you do.
If you don’t have anyone to answer to, you are free to follow your gut, and that’s hell of an enjoyable way to work, and it’s also and very often the correct way to work. Your gut knows a lot. You can’t articulate it, but it’s spot-on more times than not.
I often feel like in the more interesting things I do in my life, I really don’t know what I’m doing upfront. And I think there’s a lot of people around me that care for me that really want me to know what I’m doing. They’re like, “What’s the plan? Why are you doing this crazy thing?”
And if I had to wait until I have a plan, I’m not going to do it. They have different brains on this kind of stuff. Some people really are planners and it maybe energizes them, but I think most creative pursuits, most really interesting, most novel pursuits are like, you kind of have to just take the leap and then just figure out as you go.
If you follow the inspiration in that moment and trust your gut, trust your own competence that you will figure it out, you’re going to get so much more back. You’re going to go on the adventure you otherwise wouldn’t have, whether that’s just the business decisions or life decision. You have to seize that inspiration.
There’s a great set of children’s books written by this Japanese author about chasing an idea and trying to get a hold of it, and it’s beautifully illustrated as an idea is something that’s floating around, as something you have to catch and latch onto, that I really feel captures this notion that inspiration is perishable; it’ll disappear. If you just put it back on the shelf and say, “Well, I got to be diligent about this, I got to line up a plan,” you may run out, and then there’s no steam to keep going.
Because I faced this almost immediately with Ruby on Rails. As soon as it was released, there were a million people who had all sorts of opinions about where I ought to take it. And not just opinions, but actually demands. “Unless you implement an Oracle database adapter, this is always going to be a toy.” It was actually more or less that exact demand that prompted me to have a slide at one of the early Rails conferences that just said, “Fuck you.”
I’m not a vendor. This is a fundamental misconception that users of open source occasionally step into because they’re used to buying software from companies who really care about their business. I care about people using my software, I think it’s great, but we don’t have a transactional relationship. I don’t get something back when you tell me what to do, except grief, and I don’t want it, so you can keep it.
So my open source philosophy from the start has been I got to do this primarily for me. I love when other people find use in my open source. It’s not my primary motivation. I’m not primarily doing it for other people. I’m primarily doing it for me and my own objectives.
Because as Adam Smith said, it’s not for the benevolence of the butcher that we expect our daily meat. It’s for his self-interest. And I actually find that to be a beautiful thought that our commons increase in value when we all pursue our self-interest, certainly in the realm of open source.
This is also why I reject this notion that open source is in some sort of crisis, that there’s a funding crisis, that we have to spend more. No, we don’t. Open source has never been doing better. Open source has never controlled more domains in software than it has right now. There is no crisis.
There’s a misconception from some people making open source and from a lot of people using open source that open source is primarily like commercial software; something you buy and something where you can then make demands as a customer and that the customer is always right. The customer is not always right, not even in business, but certainly not in open source.
In open source, the customer as it is, is a receiver of gifts. We are having a gift exchange. I show up and give you my code. If you like it, you can use it. And if you have some code that fits in with where I’m going with this, I would love to get those gifts back. And we can keep trading like that.
I give you more gifts. You give me some of your gifts. Together, we pool all the gifts such that someone showing up brand new just get a mountain of gifts. This is the magic thing of open source is it increases the total sum value of what’s in the commons when we all pursue our own self-interest.
So I’m building things for Rails that I need. And you know what? You want me to do that. You do not want me to build things that I don’t need on behalf of other people because I’ll do a crap job. I build much better software when I can evaluate the quality of that software by my own use.
I need this feature. I’m going to build a good version of that feature, and I’m going to build just enough just for me. So I’m not going to bloat it. I’m not trying to attract the customer here. I’m not trying to see some angle. I’m just building what I need. And if you go into open source with that mentality that you’re building for you and everything else is a bonus, I think you have all the ingredients to go the distance.
I think the people who burn out in open source is when they go in thinking, “I’m making all these gifts. I don’t really need them myself, but I’m hoping someone else does and maybe they’ll also give me some money.” That’s a losing proposition. It never basically works.
If you want money for your software, you should just sell it. We have a perfectly fine model of commercial software that people can make that kind and then they can sell it. But I find a lot of confusion, let’s just call it that politely, in open source contributors who want to have their cake and eat it too.
They like the mode of working with open source, they maybe even like the status that comes from open source, but they also would like to earn a living for making that open source. And therefore, they occasionally end up with the kind of grievances that someone who feels underappreciated at work will develop when others aren’t doing enough to recognize their great gifts.
Open source, once you start mixing money into, it gets real muddy real fast, and a lot of it’s just from those misaligned expectations that if you feel like you’re starving artists as an open source developer and you are owed X amount of money because your software is popular, you’re delusional and you need to knock that off. Just get back on track where you realize that you’re putting gifts into the world and if you get something back in terms of monetary compensation, okay, that’s a bonus. But if you need that money back in terms of monetary compensation, just charge for software or go work for a software company that will employ you to do open source. There’s tons of that. That is probably actually the primary mode that open source software is being developed in the world today. Commercial companies making open source that they need themselves and then contributing it back.
I think they’re not the good guy in this. I don’t like it. I understand the frustration, I understand all of it, but I don’t think that excuses the behavior. There is a bit of… See this kind of counter to a little bit what you said, which is when you have an open source project of that size, there is a bit of a… When you’re the king of a project of a kingdom that large, there’s a bit of responsibility. Anyway, could you speak maybe, to your empathy of Matt and to your criticism? And maybe paint a path of how he and WordPress can be winning again.
You may disagree about whether they’ve done enough, whether they should do more, but you can’t show up after you’ve given the gift of free software to the world and then say, “Now that you’ve used that gift, you actually owe me a huge slide of your business because you got too successful using the thing I gave you for free.” You don’t get to take a gift back. That’s why we have open source licenses. They stipulate exactly what the obligations are on both sides of the equation. The users of open source don’t get to demand what the makers of open source do and how they act and the makers of open source don’t get to suddenly show up with a ransom note to the users and say, “Actually you owe me for all sorts of use.” I’m 100% allergic to that kind of interaction. And I think Matt unfortunately for whatever reason, got so wrapped up in what he was owed that he failed to realize what he was destroying. WordPress and Automatic already makes a ton of money.
This is part of the wonder of WordPress. This is a project that generates 100s of millions of dollars and Matt didn’t feel like he was getting enough of that. That’s not a good argument, bro. You can’t just violate the spirit and the letter of these open source licenses and just start showing up with demand letters even to characters that are not particularly sympathetic. This goes to the root of my interpretation of open source in general. The GPL is a particular license that actually demands code from people who use it under certain circumstances. I’ve never liked the GPL. I don’t want your shitty code. If you don’t want to give it to me, what am I going to do with that? Some code dump that you’ve… I’m not on board with that part of Stallman’s vision at all. I love the MIT license. To me that is the perfect license because it is mercilessly short.
I think it’s two paragraphs, three paragraphs, really short and it basically says, “Here’s some software. It comes with no warranty. You can’t sue me. You can’t demand anything, but you can do whatever the hell you want with it. Have a nice life.” That’s a perfect open source interaction in my opinion, and that license needs to be upheld. These licenses in general, even the GPL, even if I don’t like it, we have to abide by them because if we just set aside those licenses, when we in a moment’s notice feel like something’s slightly unfair, we’ve lost everything. We’ve lost the entire framework that allowed open source to prosper and allowed open source to become such an integral part of commerce too. I mean, back when open source was initially finding its feet, it was at war with commercial software. Stallman is at war with commercial software and always has been.
Bill Gates was in return at war with open source for the longest time. The open source licenses and the clarity that they provide allowed us to end that war. Today, commercial software and open source software can peacefully coexist. I make commercial software, I sell Basecamp, I sell HEY, and then I also make a bunch of open source software that I give away for free gifts. That can’t happen if we start violating these contracts. No commercial company is going to go, “Let me base my next project off this piece of open source if I’m also running the liability that some Matt maker is going to show up seven years in and demand I give them $50 million.” That’s not an environment conducive to commerce collaboration or anything else and it’s just basically wrong. I think there’s one analysis that’s all about the practical outcomes of this, which I think are bad.
There’s also an argument that’s simply about ethics. This is not right. You can’t just show up afterwards and demand something. This is not too dissimilar in my opinion, to the whole Apple thing we talked about earlier, Apple just showing up and feeling like they’re entitled to 30% of everyone’s business. No, that’s not right. That’s not fair. So I think Matt unfortunately steered himself blind on the indignity he thought was being perpetrated against him because there was all this money being made by BP Engine making a good product and not giving quite enough back in Matt’s opinion, tough cookie.
I mean, I know that temptation. When you sit as the head of a very important project, you know that comes with a great degree of power and you really need a great degree of discipline to rein that in and not exercise that power at every step where you feel aggrieved. I’ve felt aggrieved a million times over in the 20 plus years of Ruby on Rails. I’ve really tried very hard not to let those, sometimes petty, sometimes substantial grievances over time seep in to the foundation of the ecosystem and risk ruining everything.
I don’t have to get all of it out of it. This is sometimes just as with the guy who thought I’d given up on being Jira or something, instead of doing Basecamp, there are people over the years who’ve asked like, “Why didn’t you charge for Rails? Don’t you know how much money had been made off Rails?” If we just look at something like Shopify, it’s worth billions of dollars. I’m not a billionaire and so freaking what? I got more than enough. I got plenty of my share.
I will say though, I’m also introspective enough to realize that if it hadn’t panned out as well as it did for me on my own business, maybe I would’ve been more tempted. Maybe if you see other people build huge successful companies off the back of your work and you really don’t have a pot to piss in, you might be tempted to get a little upset about that. I’ve seen that in the Rails world as well, where there are people who contributed substantial bodies of work and then got really miffed when they didn’t feel like they got enough back. I was fortunate enough that the business that Jason and I built with Ruby on Rails was as successful as it was and I made the money I needed to make that I didn’t need to chase the rest of it.
They’d ask people who had a million dollars net worth, “How much money do you need?” “Probably need $2 million. $2 million, then I’d be good.” Then they asked people with a net worth of $5 million, how much do you need?” “10. I need 10.” Ask people with $10 million, “What do you need?” “20.” Every single time people would need double of what they did. I did that for a couple of doublings until I realized, “You know what? This is silly. I’m already where I wished I would be and a million times over, so what less is there to pursue?” Now that doesn’t mean that if more money is coming my way, I’m going to say no to it. Of course not. But, it does mean that I’m free to set other things higher. And I also do think you realize, as Jim Carrey would say, “I wish everyone would get all the money that they wished for and they’d realize it wasn’t the answer.”
That money solves a whole host of problems and anxieties and then it creates a bunch of new ones and then it also doesn’t touch a huge swath of the human experience at all. The world is full of miserable, anxious, hurt, rich people. It’s also full of miserable, anxious, poor people and I’d rather be a miserable, anxious, rich person than a poor person. But it isn’t this magic wand that make everything go away, and that’s again one of those insights, just like having children, that you cannot communicate in words. I’ve never been able to persuade a person who’s not wealthy that wealth wasn’t going to solve all their problems.
I really like that Pagani Sonda. It was a very expensive car and I would’ve had no chance of acquiring it if I hadn’t become rather successful in business. So I don’t want to dismiss it either. It’s great fun to have money. It’s just not as fun for quite as long or as deep as you think it is. And these other things, having an occupation and a pursuit that you enjoy, being able to carry burdens with a stiff up a lip and with again, a sense of meaning, is incredible. To have family, to have friends, to have hobbies, to have all these things that are actually available to most people around the world, that’s winning. And it doesn’t mean you have to discount your ambitions. It doesn’t mean you can’t reach for more, but it does mean it’s pretty dumb if you don’t realize that it’s not going to complete you in some hocus-pocus woo sense to make more. It really isn’t.
If you convince yourself with such certainty that the world is going to turn to shit. It is, right up here in your head, today. Climate change might wipe out this entire species in 200 years. It’s not next year. It’s not 10 years from now. Life might become more unpleasant and there might be more negative effects and so on. Yes, okay, but then deal with that hardship when it arrives. Don’t take that in advance. How are you helping earth by just walking around being depressed?
Certainly a lot of very smart people, very qualified people got that just utterly and catastrophyingly wrong. So just a little intellectual humility, I think back upon that and go like, “You know what? I’m not a PhD in virology,” and I don’t claim that I somehow saw how it always going to play out, but the people who were really experts in it, they’ve got a bunch of it wrong. Nobody knows anything. I keep reminding myself of that every day. No one knows anything. We can’t predict the economy a month out. We can’t predict world affairs a month… The world is just too complicated.
Click link to jump approximately to that part in the transcript:
- 0:00 – Episode highlight
- 1:21 – Introduction
- 2:32 – Programming
- 19:57 – JavaScript
- 30:16 – Google Chrome and DOJ
- 38:03 – Ruby programming language
- 45:14 – Beautiful code
- 1:03:15 – Metaprogramming
- 1:06:36 – Dynamic typing
- 1:13:55 – Scaling
- 1:26:47 – Future of programming
- 1:44:18 – Future of AI
- 1:50:13 – Vibe coding
- 1:58:45 – Rails manifesto: Principles of a great programming language
- 2:23:11 – Why managers are useless
- 2:32:32 – Small teams
- 2:38:39 – Jeff Bezos
- 2:53:57 – Why meetings are toxic
- 3:01:43 – Case against retirement
- 3:09:00 – Hard work
- 3:14:38 – Why we left the cloud
- 3:17:48 – AWS
- 3:27:07 – Owning your own servers
- 3:33:19 – Elon Musk
- 3:43:01 – Apple
- 3:54:48 – Tim Sweeney
- 4:06:22 – Fatherhood
- 4:32:04 – Racing
- 4:59:08 – Cars
- 5:04:26 – Programming setup
- 5:19:35 – Programming language for beginners
- 5:32:53 – Open source
- 5:41:46 – WordPress drama
- 5:53:03 – Money and happiness
- 6:01:56 – Hope
Episode highlight
DHH
No one anywhere who’s serious believes that cookie banners does anything good for anyone, yet we’ve been unable to get rid of it. This is the thing that really gets me about cookie banners too. It’s not just the EU, it’s the entire world. You can’t hide from cookie banners anywhere on this planet. If you go to goddamn Mars on one of Elon’s rockets and you try to access a web page, you’ll still see a cookie banner. No one in the universe is safe from this nonsense.
No one anywhere who’s serious believes that cookie banners does anything good for anyone, yet we’ve been unable to get rid of it. This is the thing that really gets me about cookie banners too. It’s not just the EU, it’s the entire world. You can’t hide from cookie banners anywhere on this planet. If you go to goddamn Mars on one of Elon’s rockets and you try to access a web page, you’ll still see a cookie banner. No one in the universe is safe from this nonsense.
It sometimes feels like we’re barely better off. Web pages aren’t that different from what they were in the late ’90s, early 2000s. They’re still just forms. They still just write to databases. A lot of people, I think, are very uncomfortable with the fact that they are essentially crud monkeys. They just make systems that create, read, update, or delete rows in a database and they have to compensate for that existential dread by over complicating things. That’s a huge part of the satisfaction of driving a race car is driving in at the edge of adhesion, as we call it, where you’re essentially just a tiny movement away from spinning out. Doesn’t take much. Then the car starts rotating. Once it starts rotating, you lose grip and you’re going for the wall. That balance of danger and skill is what’s so intoxicating.
Introduction
Lex Fridman
The following is a conversation with David Heinemeyer Hansen, also known as DHH. He is a legend in the programming and tech world, brilliant and insightful, sometimes controversial, and always fun to talk to. He’s the creator of Ruby on Rails, which is an influential web development framework behind many websites used by millions of people, including Shopify, GitHub, and Airbnb. He is the co-owner and CTO of 37signals that created Basecamp, HEY, and ONCE.
The following is a conversation with David Heinemeyer Hansen, also known as DHH. He is a legend in the programming and tech world, brilliant and insightful, sometimes controversial, and always fun to talk to. He’s the creator of Ruby on Rails, which is an influential web development framework behind many websites used by millions of people, including Shopify, GitHub, and Airbnb. He is the co-owner and CTO of 37signals that created Basecamp, HEY, and ONCE.
He is a New York Times best-selling author together with his co-author, Jason Fried, of four books, Rework, Remote, Getting Real, and It Doesn’t Have To Be Crazy At Work. And on top of that, he’s also a race car driver, including being a class winner at the legendary twenty-four-hour Le Mans race. This is the Lex Fridman podcast. To support it, please check out our sponsors in the description and consider subscribing to this channel. And now, dear friends, here’s DHH.
Programming
Lex Fridman
For someone who became a legendary programmer, you officially got into programming late in life, and I guess that’s because you tried to learn how to program a few times and you failed. So can you tell me the full story, the saga of your failures to learn programming? Was Commodore 64 involved?
For someone who became a legendary programmer, you officially got into programming late in life, and I guess that’s because you tried to learn how to program a few times and you failed. So can you tell me the full story, the saga of your failures to learn programming? Was Commodore 64 involved?
DHH
Commodore 64 was the inspiration. I really wanted a Commodore 64. That was the first computer I ever sat down in front. And the way I sat down in front of it was I was five years old and there was this one kid on my street who had a Commodore 64. No one else had a computer, so we were all the kids just getting over there and we were all playing Yie Ar Kung-Fu. I don’t know if you’ve ever seen that game. It was one of the original fighting games. It’s really a great game and I was playing that for the first time at five years old, and we were like seven kids sitting up in this one kid’s bedroom all taking our turn to play the game. And I just found that unbelievably interesting. And I begged and I begged and I begged my dad, “Could I get a computer?” And he finally comes home. He’s like, “I got you a computer.” I was like, yes, my own Commodore 64. And he pulls out this black, green and blue keyboard that’s an Amstrad 464. I was like, “Dad, what’s this?”
Commodore 64 was the inspiration. I really wanted a Commodore 64. That was the first computer I ever sat down in front. And the way I sat down in front of it was I was five years old and there was this one kid on my street who had a Commodore 64. No one else had a computer, so we were all the kids just getting over there and we were all playing Yie Ar Kung-Fu. I don’t know if you’ve ever seen that game. It was one of the original fighting games. It’s really a great game and I was playing that for the first time at five years old, and we were like seven kids sitting up in this one kid’s bedroom all taking our turn to play the game. And I just found that unbelievably interesting. And I begged and I begged and I begged my dad, “Could I get a computer?” And he finally comes home. He’s like, “I got you a computer.” I was like, yes, my own Commodore 64. And he pulls out this black, green and blue keyboard that’s an Amstrad 464. I was like, “Dad, what’s this?”
Lex Fridman
The disappointment.
The disappointment.
DHH
This is not a Commodore 64. But it was a computer. So I got my first computer at essentially six years old, that Amstrad 464. And of course, the first thing I wanted to do, I wanted to play video games. And I think the computer, which he by the way had traded for a TV and a stereo recorder or something like that, came with two games. One was this Frogger game where you had to escape from underground. It was actually kind of dark, like this frog, you’re trying to get it out from underground. I was pretty bad at it. And I only had those two games and then I wanted more games. And one way to get more games when you’re a kid who doesn’t have a lot of money and can’t just buy a bunch of games is to type them in yourself. Back in ’84, ’85, magazines would literally print source code at the back of their magazines and you could just sit and type it in.
This is not a Commodore 64. But it was a computer. So I got my first computer at essentially six years old, that Amstrad 464. And of course, the first thing I wanted to do, I wanted to play video games. And I think the computer, which he by the way had traded for a TV and a stereo recorder or something like that, came with two games. One was this Frogger game where you had to escape from underground. It was actually kind of dark, like this frog, you’re trying to get it out from underground. I was pretty bad at it. And I only had those two games and then I wanted more games. And one way to get more games when you’re a kid who doesn’t have a lot of money and can’t just buy a bunch of games is to type them in yourself. Back in ’84, ’85, magazines would literally print source code at the back of their magazines and you could just sit and type it in.
So I tried to do that and it would take like two hours to print this game into the Amstrad, and of course I’d make some spelling mistake along the way and something wouldn’t work and the whole thing… I wasn’t that good of English, I was born in Denmark. So I was really trying to get into it because I wanted all these games and I didn’t have the money to buy them. And I tried quite hard for quite a while to get into it, but it just never clicked. And then I discovered the magic of piracy, and after that I basically just took some time off from learning to program because well now suddenly I had access to all sorts of games. So that was the first attempt around six, seven years old. And what’s funny is I remember these fragments. I remember not understanding the purpose of a variable.
If there’s a thing and you assign something, why would you assign another thing to it? So for some reason, I understood constants. Constants made sense to me, but variables didn’t. Then maybe I’m 11 to 12, I’ve gotten into the Amiga at this point. The Amiga, by the way, still perhaps my favorite computer of all time. I mean, this is one of those things where people get older and they’re like, oh, the music from the ’80s was amazing. To me, even as someone who loves computers and love new computers, the Amiga was this magical machine that was made by the same company that produced the Commodore 64 and I got the Amiga 500 I think in ’87.
Lex Fridman
Look at this sexy thing. That is a sexy machine right there.
Look at this sexy thing. That is a sexy machine right there.
DHH
This is from an age by the way where computing wasn’t global in the same sense, that different territories had different computers that were popular. The Amiga was really popular in Europe, but it wasn’t very popular at all in the US as far as I understand. It wasn’t popular in Japan. There were just different machines. The Apple II was a big thing in the US. I’d never even heard of Apple in the ’80s in Copenhagen. But the Amiga 500 was the machine that brought me to want to try it again. And do you know what’s funny? The reason I wanted to try it again was I remembered the first time I tried to learn and then there was this programming language that was literally called EasyAMOS, like the easy version of AMOS. I’m like, if it’s easy AMOS, how hard can it be? I’ve got to be able to figure this out.
This is from an age by the way where computing wasn’t global in the same sense, that different territories had different computers that were popular. The Amiga was really popular in Europe, but it wasn’t very popular at all in the US as far as I understand. It wasn’t popular in Japan. There were just different machines. The Apple II was a big thing in the US. I’d never even heard of Apple in the ’80s in Copenhagen. But the Amiga 500 was the machine that brought me to want to try it again. And do you know what’s funny? The reason I wanted to try it again was I remembered the first time I tried to learn and then there was this programming language that was literally called EasyAMOS, like the easy version of AMOS. I’m like, if it’s easy AMOS, how hard can it be? I’ve got to be able to figure this out.
And this time I tried harder. I got into conditionals, I got into loops, I got into all these things and still, I couldn’t do it. And on the second attempt, I really got to the point of maybe I’m not smart enough. Maybe it’s too much math. I like math in this sort of superficial way. I don’t like it in the deep way that some of my perhaps slightly nerdier friends did, who I had tremendous respect for, but I’m not that person. I’m not the math geek who’s going to figure it all out. So after that attempt with EasyAMOS and failing to even get… I don’t even think I completed one even very basic game. I thought, programming’s just not for me. I’m going to have to do something else. I still love computers. I still love video games.
I actually at that time had already begun making friends with people who knew how to program, who weren’t even programming EasyAMOS, they were programming with freaking Assembly. And I would sit down and just go, the moves and the memories and the copies, how do you even do this? I don’t even understand how you go from this to Amiga demos for example. That was the big thing with the Amiga. It had this wonderful demo scene in Europe. It’s this really interesting period of time in the Amiga’s history where you had all these programmers spread out mostly all over Europe who would compete on graphic competitions where you could probably bring one of these different-
Lex Fridman
On that thing?
On that thing?
DHH
On this thing. They would make these little almost like music videos, combining some MIDI music, combining some cool graphics, and they would do all of it in like 4K. Four kilobytes that is. Not four Ks of resolution. Four kilobytes of memory. And I just thought that was such a cool scene. This was obviously pre-internet. It was even pre-BBS, bulletin board systems, to some extent. It was you swap your demo software with someone else by sending them a disk in the mail, like the 3.5s. And I was enamored with that whole scene. I was enamored with what they were able to create and I just wanted to be a part of it even though I kind of didn’t have any skills to contribute. And that’s how I got into running BBSs.
On this thing. They would make these little almost like music videos, combining some MIDI music, combining some cool graphics, and they would do all of it in like 4K. Four kilobytes that is. Not four Ks of resolution. Four kilobytes of memory. And I just thought that was such a cool scene. This was obviously pre-internet. It was even pre-BBS, bulletin board systems, to some extent. It was you swap your demo software with someone else by sending them a disk in the mail, like the 3.5s. And I was enamored with that whole scene. I was enamored with what they were able to create and I just wanted to be a part of it even though I kind of didn’t have any skills to contribute. And that’s how I got into running BBSs.
I didn’t learn programming then and I wouldn’t learn programming until much later, until I was almost 20 years old. The bulletin board systems existed in this funny space where they were partly a service to the demo scenes allowing all these demo groups to distribute their amazing demos. And then it was also a place to trade piracy software, pirated software. And I ended up starting one of those when I was 14 years old in my tiny little bedroom in Copenhagen. I had my, at that point, Amiga 4000. I had three telephone lines coming in to my tiny room.
Lex Fridman
Nice.
Nice.
DHH
Which is funny because again, I’m 14 years old. By the time I was installing my third line, you had to get someone from the telephone company to come do it. I get this guy and he’s just looking around, like what is this? Why the hell is a 14 year old having three phone lines into their tiny little bedroom? What’s going on here? Why are all these modems blinking red and black and making funny sounds?
Which is funny because again, I’m 14 years old. By the time I was installing my third line, you had to get someone from the telephone company to come do it. I get this guy and he’s just looking around, like what is this? Why the hell is a 14 year old having three phone lines into their tiny little bedroom? What’s going on here? Why are all these modems blinking red and black and making funny sounds?
Lex Fridman
Did your parents know?
Did your parents know?
DHH
They did and they didn’t. They knew I had the phone lines. They knew I had the computer. I don’t think they really understood that I was trading pirated software that was both illegal and whatever else was going on.
They did and they didn’t. They knew I had the phone lines. They knew I had the computer. I don’t think they really understood that I was trading pirated software that was both illegal and whatever else was going on.
Lex Fridman
Oh, we should probably say that in Europe, maybe you can comment on this, especially in Eastern Europe, but Europe in general, piracy I think was more acceptable than it was in the United States. I don’t know, maybe it’s just my upbringing-
Oh, we should probably say that in Europe, maybe you can comment on this, especially in Eastern Europe, but Europe in general, piracy I think was more acceptable than it was in the United States. I don’t know, maybe it’s just my upbringing-
DHH
Even that conversation wasn’t present. I never spoke to anyone growing up in Denmark-
Even that conversation wasn’t present. I never spoke to anyone growing up in Denmark-
Lex Fridman
That piracy is wrong.
That piracy is wrong.
DHH
Who had any moral qualms whatsoever about piracy. It was just completely accepted that you’re a kid, you want a lot of games, you don’t have a lot of money. What do you do? You trade. Some people would occasionally buy a game. I mean, I once bought a Sega Master system and I bought one game because that was what I could afford. I got After Burner II, I don’t know if you’ve ever played that game. It’s a pretty bad implementation on the Sega Master System, but it was like 600 crowners.
Who had any moral qualms whatsoever about piracy. It was just completely accepted that you’re a kid, you want a lot of games, you don’t have a lot of money. What do you do? You trade. Some people would occasionally buy a game. I mean, I once bought a Sega Master system and I bought one game because that was what I could afford. I got After Burner II, I don’t know if you’ve ever played that game. It’s a pretty bad implementation on the Sega Master System, but it was like 600 crowners.
And I was making money at that time doing newspaper delivery. I had to do that for a month to afford one game. I liked video games way too much to wait a month just to get one game. So piracy was just the way you did it, and that was how I got into running this bulletin board system, being part of the demo scene, being part of the piracy scene to some extent. And then also at some point realizing, oh, you can actually also make money on this and this can fund buying more phone lines and buying more modems and buying more Amigas. Oh yeah, that was one of the demo parties. These were amazing things.
Lex Fridman
What am I looking at?
What am I looking at?
DHH
Isn’t that amazing?
Isn’t that amazing?
Lex Fridman
Look at all those CRT monitors.
Look at all those CRT monitors.
DHH
All these CRT monitors. Again, when I was 14, I don’t understand fully why my parents allowed this, but I traveled from Copenhagen, the capital of Denmark to [inaudible 00:12:20], this tiny little town in Jutland on the train with a bunch of dudes who were late teens, in their twenties. I’m 14 years old. I’m lugging my 14-inch CRT monitor with my computer in the back to go to the party. That was what it was called. That was the biggest demo scene party at that time and it was exactly as you see in that picture, thousands of people just lining up with their computers, programming demos all day long and trading these things back and forth.
All these CRT monitors. Again, when I was 14, I don’t understand fully why my parents allowed this, but I traveled from Copenhagen, the capital of Denmark to [inaudible 00:12:20], this tiny little town in Jutland on the train with a bunch of dudes who were late teens, in their twenties. I’m 14 years old. I’m lugging my 14-inch CRT monitor with my computer in the back to go to the party. That was what it was called. That was the biggest demo scene party at that time and it was exactly as you see in that picture, thousands of people just lining up with their computers, programming demos all day long and trading these things back and forth.
Lex Fridman
That’s kind of awesome. Not going to lie. It’s a little ridiculous.
That’s kind of awesome. Not going to lie. It’s a little ridiculous.
DHH
It’s totally awesome, and I miss it in ways where the internet has connected people in some ways, but the connection you get from sitting right next to someone else who has their own CRT monitor, who’s lugged at halfway around the country to get there is truly special because it was also just this burst of creativity. You’re constantly running around, you’re constantly surrounded by people who are really good at what they could do, they’re really good at programming computers. It’s infectious. It was part of that pang I felt then going like, oh man, why can’t I figure this out? I mean, why can’t I even figure out EasyAMOS? It’s kind of frustrating.
It’s totally awesome, and I miss it in ways where the internet has connected people in some ways, but the connection you get from sitting right next to someone else who has their own CRT monitor, who’s lugged at halfway around the country to get there is truly special because it was also just this burst of creativity. You’re constantly running around, you’re constantly surrounded by people who are really good at what they could do, they’re really good at programming computers. It’s infectious. It was part of that pang I felt then going like, oh man, why can’t I figure this out? I mean, why can’t I even figure out EasyAMOS? It’s kind of frustrating.
Lex Fridman
But on your third attempt, you were a little more successful.
But on your third attempt, you were a little more successful.
DHH
So third attempt is when I start getting it. This is when I start helping out, let’s say, building things for the internet. So around ’95 I think it is, or ’96, I discovered the internet. Actually in ninth grade, that was my first experience. I went to some university in Denmark and in ninth grade we had this excursion and they sat us down in front of a computer and the computer had Netscape Navigator, the first version, or maybe it was even the precursor to that, and they had a text editor and us kids [inaudible 00:14:06] hey, build something on the internet. And it was just HTML and the first thing you do is like, oh, I can make the text blink by just putting in this tag and saving it? That moment, that was actually when I reawakened the urge to want to learn to program because I got a positive experience.
So third attempt is when I start getting it. This is when I start helping out, let’s say, building things for the internet. So around ’95 I think it is, or ’96, I discovered the internet. Actually in ninth grade, that was my first experience. I went to some university in Denmark and in ninth grade we had this excursion and they sat us down in front of a computer and the computer had Netscape Navigator, the first version, or maybe it was even the precursor to that, and they had a text editor and us kids [inaudible 00:14:06] hey, build something on the internet. And it was just HTML and the first thing you do is like, oh, I can make the text blink by just putting in this tag and saving it? That moment, that was actually when I reawakened the urge to want to learn to program because I got a positive experience.
All the other experiences I had with programming was I’d spend hours typing something in, I click run and it wouldn’t work, and I’d get an error message that made no sense to me as a kid either at six or seven or at 12. And here I am sitting in front of a computer connected to the internet and I’m making text blink. I’m making it larger. I’m turning it into an H1 or an H2. And these guys out here, we just did it for like an hour and a half and suddenly I go, oh, I can make things for the internet that someone in Germany can be able to access and see, and I don’t have to ask anyone for permission? This is super cool. I’ve got to do more of this. So I got into the internet. I got into working with HTML, and I still had all these friends from these demo parties, and I started working with them on creating gaming websites.
I’d rather buy the video games, I’d review them. This was another good way of getting new video games was to walk down to some store and say like, hey, I’m a journalist. I’m like this fifteen-year-old kid and they’re looking at me. “You’re a journalist?” “Yeah, can I borrow some games?” Because this was when games moved on to the PlayStation and these other things. You couldn’t just as easily pirate, at least not at first. So I went down there, did all that, and that started the journey of the internet for me. I started working on these gaming websites, working with programmers, figuring out that I could do something, I could work on the HTML part.
It’s not really programming, but it kind of smells like it. You’re talking to a computer, you’re making it put text on the screen and you’re communicating with someone halfway around the world. So that became my pathway back into programming, and then slowly I picked up more and more of it. First website I did with someone, one of these programmers from the demo scene that was dynamic was asp.net. It wasn’t even actually called .net. That was what we started on, and then we moved on to PHP and PHP was when I finally got it, when it finally clicked, when conditionals and loops and variables and all of that stuff started to make sense enough to me that I thought, I can do this.
Lex Fridman
So would it be fair to say that we wouldn’t have DHH without PHP and therefore you owe all of your success to PHP?
So would it be fair to say that we wouldn’t have DHH without PHP and therefore you owe all of your success to PHP?
DHH
A hundred percent, that’s true. And it’s even better than that because PHP to me didn’t just give me a start in terms of making my own web applications. It actually gave me a bar. In many ways I think the pinnacle of web developer ergonomics is late ’90s PHP. You write this script, you FTP it to a server and instantly it’s deployed. Instantly it’s available. You change anything in that file and you reload, boom, it’s right there. There’s no web servers, there’s no setup. There’s just an Apache that runs mod PHP, and it was essentially the easiest way to get a dynamic web page up and going, and this is one of the things I’ve been chasing that high for basically the rest of my career. It was so easy to make things for the internet in the mid to late ’90s.
A hundred percent, that’s true. And it’s even better than that because PHP to me didn’t just give me a start in terms of making my own web applications. It actually gave me a bar. In many ways I think the pinnacle of web developer ergonomics is late ’90s PHP. You write this script, you FTP it to a server and instantly it’s deployed. Instantly it’s available. You change anything in that file and you reload, boom, it’s right there. There’s no web servers, there’s no setup. There’s just an Apache that runs mod PHP, and it was essentially the easiest way to get a dynamic web page up and going, and this is one of the things I’ve been chasing that high for basically the rest of my career. It was so easy to make things for the internet in the mid to late ’90s.
How did we lose the sensibilities that allowed us to not just work this way but get new people into the industry to give them those success experiences that I had adding a freaking blink tag to an HTML page, FTPing a PHP page to an Apache web server without knowing really anything about anything? Without knowing anything about frameworks, without knowing anything about setup. All of that stuff have really taken us to a place where it sometimes feels like we’re barely better off. Web pages aren’t that different from what they were in the late ’90s, early 2000s. They’re still just forms. They still just write to databases.
A lot of people, I think are very uncomfortable with the fact that they are essentially crud monkeys. They just make systems that create, read, update or delete rows in a database, and they have to compensate for that existential dread by over-complicating things. Now, that’s a bit of a character. There’s more to it and there’s things you can learn for more sophisticated ways of thinking about this, but there’s still an ideal here, which is why I was so happy you had Pieter Levels on because he still basically works like this. And I look at that and go, man, that’s amazing.
Lex Fridman
Yeah, you’re chasing that high. He’s been high all along.
Yeah, you’re chasing that high. He’s been high all along.
DHH
Yes.
Yes.
Lex Fridman
Using PHP, jQuery and SQLite.
Using PHP, jQuery and SQLite.
DHH
I think it’s amazing because he’s proving that this isn’t just a nostalgic dream. He’s actually doing it. He’s running all these businesses. Now, some of that is, as he would admit up first upfront, is that he’s just one guy. And you could do different things when you’re just one guy. When you’re working in a team, when I started working on a team, when I started working with Jason Fried on Basecamp, we at first didn’t use version control together.
I think it’s amazing because he’s proving that this isn’t just a nostalgic dream. He’s actually doing it. He’s running all these businesses. Now, some of that is, as he would admit up first upfront, is that he’s just one guy. And you could do different things when you’re just one guy. When you’re working in a team, when I started working on a team, when I started working with Jason Fried on Basecamp, we at first didn’t use version control together.
I used version control for myself, and then I thought, do you know what? Designers, they’re probably not smart enough to figure out CBS and therefore I was just like, no, no, no, you just FTP it up. You just FTP it. They knew how to do FTP. And then after the third time I had overwritten their changes I was like, goddamn it, I guess I’ve got to teach Jason CBS to not do that again. But I think there’s still way more truth to the fact that we can work the way we did in the ’90s, work the way Pieter works today even in the team context, and that we’ve been far too willing to hand over far too much of our developer ergonomics to the merchants of complexity.
JavaScript
Lex Fridman
And you’ve been chasing that with Rails 8. So how do you bring all the cool features of a modern framework and make it no build, make it as easy to create something and to ship it as it was in the ’90s with just PHP? It’s very difficult for me to beat the Pieter Levels approach of just… It’s so easy to just ship some PHP.
And you’ve been chasing that with Rails 8. So how do you bring all the cool features of a modern framework and make it no build, make it as easy to create something and to ship it as it was in the ’90s with just PHP? It’s very difficult for me to beat the Pieter Levels approach of just… It’s so easy to just ship some PHP.
DHH
And it should be. Why should it be harder than that? Our computers today are almost infinitely faster than what they were in the ’90s. So shouldn’t we be able to work in even easier ways? We should be looking back on the ’90s and go, oh, that was way too complicated. Now we have more sophisticated technology that’s way faster and it allows us to work in these easier to use ways. But that’s not true. But now you can see the line I draw in my work with Ruby on Rails, and especially with Rails 8. No build to me is reaching back to that ’90s feeling and going, now we can do some of those things without giving up on all the progress. Because I do think you can get too nostalgic. I do think you can start just fantasizing that everything was better in the ’90s. I wasn’t.
And it should be. Why should it be harder than that? Our computers today are almost infinitely faster than what they were in the ’90s. So shouldn’t we be able to work in even easier ways? We should be looking back on the ’90s and go, oh, that was way too complicated. Now we have more sophisticated technology that’s way faster and it allows us to work in these easier to use ways. But that’s not true. But now you can see the line I draw in my work with Ruby on Rails, and especially with Rails 8. No build to me is reaching back to that ’90s feeling and going, now we can do some of those things without giving up on all the progress. Because I do think you can get too nostalgic. I do think you can start just fantasizing that everything was better in the ’90s. I wasn’t.
I mean, I was there, there was a lot of things that sucked. And if we can somehow find a way to combine the advantages and advances we’ve had over the past 20 years with that ease of developer ergonomics, we can win. No build is a rejection of the part of web development I’ve hated the most in the past 10, 15 years, which is the JavaScript scene. And I don’t say that as someone who hates JavaScript. I mean, I often joke that JavaScript is my second favorite program language. It’s a very distant second. Ruby is by far and away number one, but I actually like JavaScript. I don’t think it’s a bad language. It gets a lot of flak. People add a string of two plus a one and it gives something nonsense, and I just go, yeah, but why would you do that? Just don’t do that. The language is actually quite lovely, especially the modern version.
ES6, that really introduced a proper class syntax to it, so I could work with JavaScript in many of the same ways that I love working with Ruby. It made things so much better. But in the early 2010s until quite recently, all of that advancement happened in pre-processing, happened in build pipelines. The browsers couldn’t speak a dialect of JavaScript that was pleasant to work with so everyone started pre-compiling their JavaScript to be able to use more modern ways of programming with a browser that was seen as stuck with an ancient version of JavaScript that no one actually wanted to work with. And that made sense to me, but it was also deeply unpleasant. And I remember thinking during that time, the dark ages as I refer to them with JavaScript, that this cannot be the final destination. There’s no way that we have managed to turn the internet into such an unpleasant place to work where I would start working on a project in JavaScript using Webpack and all of these dependencies, and I would put it down for literally five minutes and the thing wouldn’t compile anymore.
The amount of churn that the JavaScript community, especially with its frameworks and its tooling, went through in the decade from 2010 to 2020 was absurd. And you had to be trapped inside of that asylum to not realize what an utterly perverse situation we had landed ourselves in. Why does everything break all the time? I mean, the joke wouldn’t be just that the software would break, that would annoy me personally. But then I’d go on Hacker News and I’d see some thread on the latest JavaScript release of some framework, and the thread would be like, someone would ask, well, aren’t we using the thing we just used three months ago? And people would be like, that thing is so outdated. That’s so three months ago. You’ve got to get with the new program, we’re completely rewriting everything for the [inaudible 00:24:07] time and anything you’ve learned in the framework you’ve been spending the last amount of time on, it’s all useless. You’ve got to throw everything out and you’ve got to start over. Why aren’t you doing it stupid idiot?
Lex Fridman
Is that a kind of mass hysteria that took over the developer community you think? Like where you have to keep creating new frameworks and new frameworks and are we past that dark age?
Is that a kind of mass hysteria that took over the developer community you think? Like where you have to keep creating new frameworks and new frameworks and are we past that dark age?
DHH
I think we’re getting out of it and we’re getting out of it because browsers have gotten so much better. There was a stagnation in browser technology. Some of it was an overhang all the way back from IE5. So IE5 essentially put the whole internet development experience into a deep freeze because Microsoft won the browser wars in the mid-2000s, and then they basically disbanded their browser development team because they’re like all right, job done, we don’t need any more innovation on the internet. Can we just go back to writing Windows forms or something now that we control everything? And it really wasn’t until obviously Firefox kind of kindled a little bit of something. Then Chrome got into the scene and Google got serious about moving to web forward, that you had a kindling of maybe the browser could be better. Maybe the browser wasn’t frozen in time in 2005. Maybe the browser could actually evolve like the development platform that it is. But then what happened was you had a lot of smart people who poured in to the web because the web turned out to be the greatest application development platform of all time. This was where all the money was being made. This was where all the billionaires were being minted. This was where the Facebook’s and whatever of the world came to be. So you had all of this brain power applied to the problem of how to work with the web, and there were some very smart people with some I’m sure very good ideas who did not have programmer happiness as their motivation number one. They had other priorities and those priorities allowed them to discount and even rationalize the complexity they were injecting everywhere. Some of that complexity came from organizational structure. When you have a company like Facebook for example that does depend on the web and want to push it forward, but have sliced the development role job into these tiny little niches… I’m a front-end glob pipeline configurator.
I think we’re getting out of it and we’re getting out of it because browsers have gotten so much better. There was a stagnation in browser technology. Some of it was an overhang all the way back from IE5. So IE5 essentially put the whole internet development experience into a deep freeze because Microsoft won the browser wars in the mid-2000s, and then they basically disbanded their browser development team because they’re like all right, job done, we don’t need any more innovation on the internet. Can we just go back to writing Windows forms or something now that we control everything? And it really wasn’t until obviously Firefox kind of kindled a little bit of something. Then Chrome got into the scene and Google got serious about moving to web forward, that you had a kindling of maybe the browser could be better. Maybe the browser wasn’t frozen in time in 2005. Maybe the browser could actually evolve like the development platform that it is. But then what happened was you had a lot of smart people who poured in to the web because the web turned out to be the greatest application development platform of all time. This was where all the money was being made. This was where all the billionaires were being minted. This was where the Facebook’s and whatever of the world came to be. So you had all of this brain power applied to the problem of how to work with the web, and there were some very smart people with some I’m sure very good ideas who did not have programmer happiness as their motivation number one. They had other priorities and those priorities allowed them to discount and even rationalize the complexity they were injecting everywhere. Some of that complexity came from organizational structure. When you have a company like Facebook for example that does depend on the web and want to push it forward, but have sliced the development role job into these tiny little niches… I’m a front-end glob pipeline configurator.
Oh yeah, well, I’m a front-end whatever engineer. And suddenly the web developer was no longer one person. It was 15 different roles. That in itself injected a ton of complexity. But I also want to give it the bold case here, which was that some of that complexity was necessary to get to where we are today, that the complexity was a bridge. It wasn’t the destination, but we had to cross that bridge to get to where we are today where browsers are frankly incredible. The JavaScript you can write in a text file and then serve on a web server for a browser to ingest is amazing. It’s actually a really good experience. You don’t need any pre-processing. You could just write text files, send them to a browser, and you have an incredible development-
Lex Fridman
And we should also say that it can kind of be broken, at least the HTML, but even the JavaScript could be a little bit broken and it kind of still works. Like maybe it half-ass works, but just the amount of mess of smelly code that a browser has to deal with is insane.
And we should also say that it can kind of be broken, at least the HTML, but even the JavaScript could be a little bit broken and it kind of still works. Like maybe it half-ass works, but just the amount of mess of smelly code that a browser has to deal with is insane.
DHH
This is one of the hardest problems in computing today is to parse the entire internet. Because thankfully for us as web developers, but perhaps not so much for the browser developers, every webpage that has ever been created minus the brief period with Flash still runs today. The webpage I did in ninth grade would render on a modern browser today, 30 years later.
This is one of the hardest problems in computing today is to parse the entire internet. Because thankfully for us as web developers, but perhaps not so much for the browser developers, every webpage that has ever been created minus the brief period with Flash still runs today. The webpage I did in ninth grade would render on a modern browser today, 30 years later.
Lex Fridman
That’s crazy.
That’s crazy.
DHH
That is completely crazy when you think about the amount of evolution we’ve had with the web, how much better we’ve made it, how many more standards browsers have adopted. It’s essentially an Apollo project today to create a new browser, which is why it doesn’t happen very often, which is why even companies like Microsoft had to throw in the towel and say, we can’t do it. Now, I actually don’t think that’s good for the web. There is the danger of the monoculture if we just get a single browser engine that runs everything, and we are in danger of that. I love the fact that the Ladybird project, for example, is trying to make a new browser engine from scratch. I’ve supported that project. I would encourage people to look into that. It’s really a wonderful thing. It’s staffed by a bunch of people who worked on other browser projects in the past.
That is completely crazy when you think about the amount of evolution we’ve had with the web, how much better we’ve made it, how many more standards browsers have adopted. It’s essentially an Apollo project today to create a new browser, which is why it doesn’t happen very often, which is why even companies like Microsoft had to throw in the towel and say, we can’t do it. Now, I actually don’t think that’s good for the web. There is the danger of the monoculture if we just get a single browser engine that runs everything, and we are in danger of that. I love the fact that the Ladybird project, for example, is trying to make a new browser engine from scratch. I’ve supported that project. I would encourage people to look into that. It’s really a wonderful thing. It’s staffed by a bunch of people who worked on other browser projects in the past.
Lex Fridman
Truly independent web browser.
Truly independent web browser.
DHH
We really need that. But I can hold that thought in my head at the same time I hold the thought in my head that Google Chrome was pivotal to the web surviving as the premier web development platform. If it had not been for Google and their entire business depending on a thriving open web, Apple, Microsoft I think would’ve been just as fine to see the web go away to disappear into being something that’s just served native mobile applications and native desktop applications that they could completely control. So I have all sorts of problems with Google, but it’s not Chrome. Chrome is a complete gift to web developers everywhere, to the web as a development platform, and they deserve an enormous amount of credit I think for that. Even if it’s entangled with their business model and half of Chrome is code that spies on you or informs targeted ads and a bunch of things I’m not a big fan of, I can divorce that from the fact that we need champions in the corner of the web who have trillions of dollars of market cap value riding on the open web.
We really need that. But I can hold that thought in my head at the same time I hold the thought in my head that Google Chrome was pivotal to the web surviving as the premier web development platform. If it had not been for Google and their entire business depending on a thriving open web, Apple, Microsoft I think would’ve been just as fine to see the web go away to disappear into being something that’s just served native mobile applications and native desktop applications that they could completely control. So I have all sorts of problems with Google, but it’s not Chrome. Chrome is a complete gift to web developers everywhere, to the web as a development platform, and they deserve an enormous amount of credit I think for that. Even if it’s entangled with their business model and half of Chrome is code that spies on you or informs targeted ads and a bunch of things I’m not a big fan of, I can divorce that from the fact that we need champions in the corner of the web who have trillions of dollars of market cap value riding on the open web.
Google Chrome and DOJ
Lex Fridman
We’re going to take tangents upon a tangent upon a tangent. So let’s go to Chrome. I think Chrome positive impact on humanity is immeasurable for reasons that you just described. On the technology front, the features that present the competition they created, it’s spurred on this wonderful flourishing of web technologies. But anyway, I have to ask you about the recent stuff with the DOJ trying to split up Chrome and Google. Do you think this is a good idea? Do you think this does harm?
We’re going to take tangents upon a tangent upon a tangent. So let’s go to Chrome. I think Chrome positive impact on humanity is immeasurable for reasons that you just described. On the technology front, the features that present the competition they created, it’s spurred on this wonderful flourishing of web technologies. But anyway, I have to ask you about the recent stuff with the DOJ trying to split up Chrome and Google. Do you think this is a good idea? Do you think this does harm?
DHH
It’s a disaster. And I say that as someone who’s been very sympathetic to the antitrust fight, because I do think we have antitrust problems in technology, but the one place where we don’t have them by and large is with browsers, is with the tools we use to access the open web. First of all, we have Firefox. Now, Firefox is not doing all that great, and Firefox has been propped up by Google for many years to deter from exactly what’s going on with the DOJ that they were the only game in town. Apple has Safari. I have a bunch of problems with Apple too, but I love Safari. I love the fact that we have a premier browser running on a premier operating system that people can’t turn the web into just a Chrome experience. But I also think that the open web needs this trillion dollar champion, or at least benefits from it.
It’s a disaster. And I say that as someone who’s been very sympathetic to the antitrust fight, because I do think we have antitrust problems in technology, but the one place where we don’t have them by and large is with browsers, is with the tools we use to access the open web. First of all, we have Firefox. Now, Firefox is not doing all that great, and Firefox has been propped up by Google for many years to deter from exactly what’s going on with the DOJ that they were the only game in town. Apple has Safari. I have a bunch of problems with Apple too, but I love Safari. I love the fact that we have a premier browser running on a premier operating system that people can’t turn the web into just a Chrome experience. But I also think that the open web needs this trillion dollar champion, or at least benefits from it.
Maybe it doesn’t need it, but it certainly benefits from it. And of all the things that are wrong with monopoly formation in technology, Chrome is the last thing, and this is why I get so frustrated sometimes about the monopoly fight, that there are real problems and we should be focusing on the premier problems first like the toll booths on our mobile phones. There are far bigger problems. It’s not the open web, it’s not the tools that we use to access the open web. If I don’t want to use Chrome, if my customers of my businesses that run on the internet don’t want to use Chrome, they don’t have to. We’re never forced to go through it. The open internet is still open. So I think it’s a real shame that the DOJ has chosen to pursue Google in this way. I do think there are other things you can nail Google for, their ad monopoly maybe, or the shenanigans they’ve done in controlling both sides of the ad ledger, that they both control the supply and the demand.
There are problems. Chrome, isn’t it. And you end up making the web much worse. And this is the thing we’ve always got to remember when we think about legislation, when we think about monopoly fights is you may not like how things look today and you may want to do something about it, but you may also make it worse. The good intentions behind the GDPR in Europe currently has amounted to what? Cookie banners that everyone on the internet hates, that helps no one do anything better, anything more efficient, that saves no privacy in any way, shape or form, has been a complete boondoggle that has only enriched lawyers and accountants and bureaucrats.
Lex Fridman
Yeah, you said that the cookie banner is a monument for why Europe is losing, is doing the worst of all the regions in tech.
Yeah, you said that the cookie banner is a monument for why Europe is losing, is doing the worst of all the regions in tech.
DHH
It’s a monument to good intentions leading straight to hell, and Europe is actually world-class in good intentions leading straight to hell.
It’s a monument to good intentions leading straight to hell, and Europe is actually world-class in good intentions leading straight to hell.
Lex Fridman
So hell is the cookie accept button, that you have to accept all cookies. That’s what hell looks like. Over and over, you don’t actually ever get to the web page-
So hell is the cookie accept button, that you have to accept all cookies. That’s what hell looks like. Over and over, you don’t actually ever get to the web page-
DHH
Just on a…
Just on a…
Lex Fridman
… over. You don’t actually ever get to the web page.
… over. You don’t actually ever get to the web page.
DHH
Just on a human scale, try to imagine how many hours every day are wasted clicking that away and how much harm we’ve done to the web as a platform that people enjoy because of them. The internet is ugly in part because of cookie banners. Cookie banners were supposed to save us from advertisement, and advertisement can make the web ugly. There’s plenty of examples of that, but cookie banners made the entire internet ugly in one fell swoop, and that’s a complete tragedy. But what’s even worse, and this is why I call it out as a monument to everything the EU gets wrong, is that we have known this for a decade. No one anywhere who’s serious believes that cookie banners does anything good for anyone, yet we’ve been unable to get rid of it.
Just on a human scale, try to imagine how many hours every day are wasted clicking that away and how much harm we’ve done to the web as a platform that people enjoy because of them. The internet is ugly in part because of cookie banners. Cookie banners were supposed to save us from advertisement, and advertisement can make the web ugly. There’s plenty of examples of that, but cookie banners made the entire internet ugly in one fell swoop, and that’s a complete tragedy. But what’s even worse, and this is why I call it out as a monument to everything the EU gets wrong, is that we have known this for a decade. No one anywhere who’s serious believes that cookie banners does anything good for anyone, yet we’ve been unable to get rid of it.
There’s this one piece of legislation that’s now I think 10 or 12 years old. It’s complete failure on every conceivable metric. Everyone hates it universally, yet we can’t seem to do anything about it. That’s a bankruptcy declaration for any body of bureaucrats who pretend or portend to make things better for not just citizens but people around the world. This is the thing that really gets me about cookie banners, too. It’s not just the EU, it’s the entire world. You can’t hide from cookie banners anywhere on this planet. If you go to goddamn Mars on one of Elon’s rockets and you try to access a webpage, you’ll still see a cookie banner. No one in the universe is safe from this nonsense.
Lex Fridman
Probably the interface on the rocket.
Probably the interface on the rocket.
DHH
It’d be slower. You have basically 150 second ping time, so it’ll take you 45 seconds just to get through the cookie banners from Mars.
It’d be slower. You have basically 150 second ping time, so it’ll take you 45 seconds just to get through the cookie banners from Mars.
Lex Fridman
All right, let’s walk back up the stack of this recursive tangents we’ve been taking. So Chrome, we should say, at least in my opinion, is not winning unfairly. It’s winning in the fair way by just being better.
All right, let’s walk back up the stack of this recursive tangents we’ve been taking. So Chrome, we should say, at least in my opinion, is not winning unfairly. It’s winning in the fair way by just being better.
DHH
It is. If I was going to Steelman the other side just for a half second, people would say, well, maybe yes, most people do sort of begrudgingly agree that Chrome is a pretty good browser. But then they’ll say the reason it got dominance was distribution, and the reason it got distribution was because Google also controls Android and therefore can make Chrome the default browser on all these phones.
It is. If I was going to Steelman the other side just for a half second, people would say, well, maybe yes, most people do sort of begrudgingly agree that Chrome is a pretty good browser. But then they’ll say the reason it got dominance was distribution, and the reason it got distribution was because Google also controls Android and therefore can make Chrome the default browser on all these phones.
Now, I don’t buy that, and the reason I don’t buy that is because on Android, you are actually allowed to ship a different browser that has a browser engine that’s not the same as Chrome. Unlike an iOS where if you want to ship a browser, Chrome, for example, ships for iOS, but it’s not Chrome, it’s Safari wrapped in a dress, and every single alternative browser on iOS have to use the Safari web engine. That’s not competition. That’s not what happened on Android.
Again, I think there are some nuances to it, but if you zoom out and you look at all the problems we have with Big Tech, Chrome is not it. Chrome One unmerits. I begrudgingly have switched to Chrome on that realization alone. As a web developer, I just prefer it. I like Firefox in many ways. I like the ethos of it, but Chrome is a better browser than Firefox, full stop.
Lex Fridman
And by the way, we’ve never mentioned Edge. Edge is also a good browser.
And by the way, we’ve never mentioned Edge. Edge is also a good browser.
DHH
Because it’s also Chrome in a dress.
Because it’s also Chrome in a dress.
Lex Fridman
But it never gets the love. I don’t think I’ve ever used Bing, and I’m sure Bing is really nice.
But it never gets the love. I don’t think I’ve ever used Bing, and I’m sure Bing is really nice.
DHH
Maybe you have, because you know what is Bing in a dress?
Maybe you have, because you know what is Bing in a dress?
Lex Fridman
What?
What?
DHH
DuckDuckGo.
DuckDuckGo.
Lex Fridman
What?
What?
DHH
Which is actually the search engine that I use. DuckDuckGo gets its search results from Bing, or at least it used to. If they changed that, that would be news to me.
Which is actually the search engine that I use. DuckDuckGo gets its search results from Bing, or at least it used to. If they changed that, that would be news to me.
Lex Fridman
Well, maybe everything is just a wrap or a dress. Everything is wearing a dress underneath. There’s some other turtles-
Well, maybe everything is just a wrap or a dress. Everything is wearing a dress underneath. There’s some other turtles-
DHH
There’s some of that.
There’s some of that.
Ruby programming language
Lex Fridman
The turtles, the dress is all the way down. Okay, what were we talking about? They got there from JavaScript and from you learning how to program. So eventually the big success stories when you built a bunch of stuff with PHP and you were like actually chipping things.
The turtles, the dress is all the way down. Okay, what were we talking about? They got there from JavaScript and from you learning how to program. So eventually the big success stories when you built a bunch of stuff with PHP and you were like actually chipping things.
DHH
Yes.
Yes.
Lex Fridman
And that’s when the Ruby story came. So your big love affair with programming began there. So can you take me there? What is Ruby? Tell the story of Ruby. Explain Ruby to me.
And that’s when the Ruby story came. So your big love affair with programming began there. So can you take me there? What is Ruby? Tell the story of Ruby. Explain Ruby to me.
DHH
PHP was what converted me from just being able to fondle HTML and turn out some web pages to actually being able to produce web applications myself. So I owe a tremendous gratitude to PHP in that regard. But I never thought of PHP as a calling. I’m a professional programmer who writes PHP. That’s who I am, and that’s what I do. I thought of PHP as a tool I needed to smack the computer with until it produced web applications I wanted. It was very much a means to an end. I didn’t fall in love with PHP. I’m very grateful that it taught me the basics of programming, and I’m very grateful that it set the bar for the economics. But it really wasn’t until Ruby that I started thinking of myself as a programmer. The way that came about was that the first time I ever got hired as a professional programmer to write code was actually by Jason Fried, my business partner still.
PHP was what converted me from just being able to fondle HTML and turn out some web pages to actually being able to produce web applications myself. So I owe a tremendous gratitude to PHP in that regard. But I never thought of PHP as a calling. I’m a professional programmer who writes PHP. That’s who I am, and that’s what I do. I thought of PHP as a tool I needed to smack the computer with until it produced web applications I wanted. It was very much a means to an end. I didn’t fall in love with PHP. I’m very grateful that it taught me the basics of programming, and I’m very grateful that it set the bar for the economics. But it really wasn’t until Ruby that I started thinking of myself as a programmer. The way that came about was that the first time I ever got hired as a professional programmer to write code was actually by Jason Fried, my business partner still.
All the way back in 2001, I had been working on these gaming websites in PHP for essentially 18 months at that point. No one had been paying me to do code in that regard, and I connect with Jason Fried over an email sent from Copenhagen, Denmark to Chicago, Illinois to a person who didn’t know who I was. I was just offering solicited advice. Jason had asked a question on the internet, and I had sent him the answer and he was asking me PHP, and I’d sent him the answer to that question and we started talking and then we started working, which by the way is a miracle of what the internet can allow. How can a kid in Copenhagen who’s never met this guy in Chicago connect just over email and start working together? By the way, we’re still working together now 24 years later. That’s incredible. But we started working together and we started working together on some client projects.
Jason would do the design, 37signals would do the design. I would bring the programming PHP. And after we work on I think two or three client projects together in PHP, we kept hitting the same problem that whenever you work with a client, you start that project off an email, “Oh, yeah, let’s work together. Here’s what we’re building.” And you start trading more and more emails and before a few weeks have passed, you got to add someone to the project. They don’t have the emails, they don’t have the context. You send them, “Where’s the latest file?” “Oh, I’ve uploaded it on the FTP. It’s like final, final V06 2.0.” Right? That’s the one to get. It’s just a mess, a beautiful mess in some ways. It’s a mess that still runs the vast majority of projects to this day. Email is the lowest common denominator. That’s wonderful.
But we had dropped the ball a couple of times in serious ways with customers and we thought we can do better. We know how to make web applications. Can’t we just make a system that’s better than email for managing projects? It can’t be that hard. We’ve been doing blogs, we’ve been doing to-do lists. Let’s put some of these things together and just make a system where everything that anyone involved in the project needs is on one page. And it has to be simple enough that I’m not going to run a seminar teaching you how to use the system. I’m just going to give you the login code. You’re going to jump into it. So that’s Basecamp. When we started working on Basecamp, I, for the first time in the experience I had with Jason had the freedom of technology choice. There was no client telling me, “Yeah, PHP, that sounds good. We know PHP. Can you build it in PHP?”
I had free reins. At that time I’d been reading IEEE magazine and a couple of other magazines back from the early 2000s where Dave Thomas and Martin Fowler had been writing about programming patterns and how to write better code. These two guys in particular were both using Ruby to explain their concepts because Ruby looked like pseudocode. Whether you were programming in C or Java or PHP, all three constituencies could understand Ruby because it basically just reads like English. So these guys were using Ruby to describe the concepts, and first of all, I would read these articles for just the concepts they were explaining and I’d be like, “What is this program language?” I mean, I like the concept you’re explaining, but I also want to see the programming language. Why haven’t I heard of this?
So I started looking into Ruby and I realized at that time, Ruby might not be known by anyone, but it’s actually been around for a long time. Matz, the Japanese creator of Ruby, had started working on Ruby back in ’93 before the internet was even a thing. And here I am in 2003, 10 years later, picking up what seems like this hidden gem that’s just laying in obscurity and plain sight. But Dave Thomas and Martin Fowler, I think successfully put me and a handful of other people on the trail of a programming language that hadn’t been used much in the west, but could be. So I picked up Ruby and I thought, this is very different. First of all, where are all the semicolons? I’d been programming in PHP, in ASP, I’d even done some Pascal. I’d looked at some C. There were semicolons everywhere.
That was the first thing that struck me is where are the damn semicolons? And I started thinking, actually, why do we have semicolons in programming? They’re to tell the interpreter that there’s a new line of instructions, but I don’t need them as a human. Oh, someone is looking out for the human here, not for the machine. So that really got me interested. And then I thought to myself, do you know what? I know PHP quite well. I’m not an amazing programmer. I haven’t been working in programming for all that long, but maybe I can figure it out. I’m going to give myself two weeks. I’m going to write a proof of concept where I talked to a database, I pulled some records, I format them a bit, and I display them on an HTML page. Can I figure that out in a couple of weeks? It took about one weekend and I was completely mesmerized. I was completely mind blown because Ruby was made for my brain like a perfect tailored glove by someone I’d never met. How is this even possible?
Beautiful code
Lex Fridman
We should say maybe paint the picture of the certain qualities that Ruby has, maybe even compare it to PHP. We should also say that there’s a ridiculous thing that I’m used to that I forget about, that there’s dollar signs everywhere.
We should say maybe paint the picture of the certain qualities that Ruby has, maybe even compare it to PHP. We should also say that there’s a ridiculous thing that I’m used to that I forget about, that there’s dollar signs everywhere.
DHH
Yes.
Yes.
Lex Fridman
PHP. I mean that-
PHP. I mean that-
DHH
Yes, there’s line noise.
Yes, there’s line noise.
Lex Fridman
Line noise.
Line noise.
DHH
That’s what I like to call it.
That’s what I like to call it.
Lex Fridman
Line noise. Line noise. That’s such a beautiful phrase. So there’s all these things that look like programs, and with Ruby, I mean there’s some similarities in Python there. It just looks kind of like natural language. You can read it normally,
Line noise. Line noise. That’s such a beautiful phrase. So there’s all these things that look like programs, and with Ruby, I mean there’s some similarities in Python there. It just looks kind of like natural language. You can read it normally,
DHH
Here’s a wild loop that does five iterations. You can literally type the number five, dot, now I’m calling a method under number five. By the way, that’s one of the beautiful aspects of Ruby that primitives like integers are also objects and you can call five dot times start brackets. Now you’re iterating over the code in that bracket five times. That’s it.
Here’s a wild loop that does five iterations. You can literally type the number five, dot, now I’m calling a method under number five. By the way, that’s one of the beautiful aspects of Ruby that primitives like integers are also objects and you can call five dot times start brackets. Now you’re iterating over the code in that bracket five times. That’s it.
Lex Fridman
Okay, that’s nice.
Okay, that’s nice.
DHH
That’s not just nice, that’s exceptional. There’s literally no other programming language that I know of that has managed to boil away the line noise that almost every other programming language would inject into a five-time iteration over a block of code to that extent.
That’s not just nice, that’s exceptional. There’s literally no other programming language that I know of that has managed to boil away the line noise that almost every other programming language would inject into a five-time iteration over a block of code to that extent.
Lex Fridman
Wow. That’s a really nice… Well, thank you for giving that example. That’s a beautiful example. Wow, I don’t think I know a programming language that does that. That’s really nice.
Wow. That’s a really nice… Well, thank you for giving that example. That’s a beautiful example. Wow, I don’t think I know a programming language that does that. That’s really nice.
DHH
Ruby’s full of that. So let me dive into a couple of examples because I really think it helps paint the picture and let me preface this by saying I actually, I like the ethos of Python. I think the Ruby and the Python community share a lot of similarities. They’re both dynamic interpreted languages. They’re both focused on immediacy and productivity and ease of use in a bunch of ways, but then they’re also very different in many other ways. One of the one ways they’re very different is aesthetically.
Ruby’s full of that. So let me dive into a couple of examples because I really think it helps paint the picture and let me preface this by saying I actually, I like the ethos of Python. I think the Ruby and the Python community share a lot of similarities. They’re both dynamic interpreted languages. They’re both focused on immediacy and productivity and ease of use in a bunch of ways, but then they’re also very different in many other ways. One of the one ways they’re very different is aesthetically.
Python to me, I hope I don’t offend people too much. I’ve said this before, it’s just it’s ugly and it’s ugly in its base because it’s full of superfluous instructions that are necessary for legacy reasons of when Guido made Python back in ’87 that are still here in 2025, and my brain can’t cope with that. Let me give you a basic example. When you make a class in Python, the Initializer method, the starting method is def, okay, fair enough. That’s actually the same as Ruby. D-E-F definition of a method. Then it is underscore not one, underscore, two, init, underscore underscore, parentheses start, self, comma, and then the first argument.
Lex Fridman
Yeah, the whole self thing. Yeah.
Yeah, the whole self thing. Yeah.
DHH
I look at that and go, “I’m sorry I’m out. I can’t do it.” Everything about it offends my sensibilities to the core. Here you have the most important method that all new objects or classes have to implement, and it is one of the most aesthetically offensive ways of typing initialize that I’ve ever seen anywhere, and you guys are okay with this?
I look at that and go, “I’m sorry I’m out. I can’t do it.” Everything about it offends my sensibilities to the core. Here you have the most important method that all new objects or classes have to implement, and it is one of the most aesthetically offensive ways of typing initialize that I’ve ever seen anywhere, and you guys are okay with this?
Lex Fridman
Hey, you’re making me… You know where you’re talking about my marriage or something like this, and I’m not realizing I’ve been in a toxic relationship all along yet. I just get used to it.
Hey, you’re making me… You know where you’re talking about my marriage or something like this, and I’m not realizing I’ve been in a toxic relationship all along yet. I just get used to it.
DHH
That to me by the way, was the magic of Ruby.
That to me by the way, was the magic of Ruby.
Lex Fridman
That’s the problem.
That’s the problem.
DHH
It opened my eyes to how beautiful programs could be. I didn’t know. I’d been working in ASP, I’d been working in PHP. I didn’t even have the concept that aesthetics, beautiful code was something we could optimize for. That’s something we could pursue, and even more than that, that we could pursue it above other objectives. That Ruby is as beautiful as it is, it’s not an accident and it’s not easy. Ruby itself is implemented in C. It’s very difficult to parse Ruby code because Ruby is written for humans and humans are messy creatures. They like things in just the right way. I can’t fully explain why the underscore, underscore, init, underscore, underscore make me repulse, but it does. And when I look at the Ruby alternative, it’s really instructive. So it’s def, same part, D-E-F space, initialize, parentheses, not even parentheses if you don’t need to call it within the arguments, there’s not even a parentheses.
It opened my eyes to how beautiful programs could be. I didn’t know. I’d been working in ASP, I’d been working in PHP. I didn’t even have the concept that aesthetics, beautiful code was something we could optimize for. That’s something we could pursue, and even more than that, that we could pursue it above other objectives. That Ruby is as beautiful as it is, it’s not an accident and it’s not easy. Ruby itself is implemented in C. It’s very difficult to parse Ruby code because Ruby is written for humans and humans are messy creatures. They like things in just the right way. I can’t fully explain why the underscore, underscore, init, underscore, underscore make me repulse, but it does. And when I look at the Ruby alternative, it’s really instructive. So it’s def, same part, D-E-F space, initialize, parentheses, not even parentheses if you don’t need to call it within the arguments, there’s not even a parentheses.
That in itself is actually also a major part. If the human doesn’t need the additional characters, we’re not just going to put them in because it’d be nicer to parse for the computer. We’re going to get rid of the semicolons, we’re going to get rid of the parentheses, we’re going to get rid of the underscores, we’re going to get rid of all that ugliness, all the line noise and boil it down to its pure essentials and at the same time, we’re not going to abbreviate. This is a key difference in the aesthetics between Ruby and Python as well. Init is shorter to type, it’s only five characters. Initialize is a lot longer, but it looks a lot better and you don’t type it very often, so you should look at something pretty. If you don’t have to do it all the time, it’s okay that it’s long.
Those kinds of aesthetic evaluations are rife all over the Ruby language. But let me give you an even better example. The if conditional, that’s the bedrock of all programming languages. They have the if conditional, if you take most programming languages, they’ll have if, that’s basically the same in almost every language, space, start parentheses, we all do that. And then you have perhaps, let’s say you’re calling a object called user. is admin, close parentheses, close parentheses, start brackets, and here’s what we’re going to do if the user’s an admin, right? That would be a normal programming language. Ruby doesn’t do it like that. Ruby boils almost all of it away. We start with the if. Okay, that’s the same, no parentheses necessary because there’s no ambiguity for the human to distinguish that the next part is just a single statement. So you do if, space, user dot admin, question mark, no open brackets, no parentheses, no nothing. Next open line, here’s your conditional.
That question mark means nothing to the computer, but it means something to the human. Ruby put in the predicate method style purely as a communication tool between humans. It’s actually more work for the interpreter to be able to see that this question mark is there. Why is this question mark in here? Because it just reads so nicely. If user admin question mark, that’s a very human phrase, but it gets better. You can turn this around. You can have your statement, you want to execute before the conditional. You can do user.upgrade, say you’re calling an upgrade method on a user, space, if, space, user.admin question mark. We do the thing, if the thing is true, instead of saying if the thing is true, do the thing. But it gets even better. This is why I love this example with the conditional because you can keep diving into it. So let’s flip it around. user.downgrade if exclamation point, not user.admin, that’d be a typical way of writing it. Ruby goes that exclamation point is light noise. Why do we have if and then an exclamation point that’s ugly? We could do user.downgrade unless user.admin question mark.
Lex Fridman
That is awesome.
That is awesome.
DHH
That to me is an encapsulation of the incredible beauty that Ruby affords the programmer through ambiguity that is only to serve the human reader and writer. All of these statements we’ve just discussed, they’re the same for the computer. It’ll compile down to the same C code. They’ll compile down to the same assembly code. It makes no difference whatsoever. In fact, it just makes it harder to write an interpreter. But for the human who gets to choose whether the statement comes before the conditional or the predicate method has, it’s just incredible. It reads like poetry at some point.
That to me is an encapsulation of the incredible beauty that Ruby affords the programmer through ambiguity that is only to serve the human reader and writer. All of these statements we’ve just discussed, they’re the same for the computer. It’ll compile down to the same C code. They’ll compile down to the same assembly code. It makes no difference whatsoever. In fact, it just makes it harder to write an interpreter. But for the human who gets to choose whether the statement comes before the conditional or the predicate method has, it’s just incredible. It reads like poetry at some point.
Lex Fridman
It’s also incredible that one language designer is creating that. Guido van Rossum also. It’s like one person gets to make these extremely difficult decision because you have to think about how does that all get parsed and you have to think about the thousands, if it’s a popular language that millions of people that end up using this and what they feel, what that question mark for the if statement, what does that feel like of the user?
It’s also incredible that one language designer is creating that. Guido van Rossum also. It’s like one person gets to make these extremely difficult decision because you have to think about how does that all get parsed and you have to think about the thousands, if it’s a popular language that millions of people that end up using this and what they feel, what that question mark for the if statement, what does that feel like of the user?
DHH
That’s what Matz thought about because he started his entire mission off a different premise than almost every programming language designer that I’d heard at least articulate their vision, that his number one goal was programmer happiness. That his number one goal was the affordances that would allow programmers to articulate code in ways that not just executed correctly, but were a joy to write and were a joy to read. That vision is based on a fundamentally different view of humanity. There’s no greater contrast between Matz and James Gosling, the designer of Java. I wanted to listen to James talk about the design of Java. Why was it the way it was? Why was it so rigid? He was very blunt about it, which by the way, I really appreciate and I think Gosling has done a tremendous job with Java, but his view of humanity is rather dark.
That’s what Matz thought about because he started his entire mission off a different premise than almost every programming language designer that I’d heard at least articulate their vision, that his number one goal was programmer happiness. That his number one goal was the affordances that would allow programmers to articulate code in ways that not just executed correctly, but were a joy to write and were a joy to read. That vision is based on a fundamentally different view of humanity. There’s no greater contrast between Matz and James Gosling, the designer of Java. I wanted to listen to James talk about the design of Java. Why was it the way it was? Why was it so rigid? He was very blunt about it, which by the way, I really appreciate and I think Gosling has done a tremendous job with Java, but his view of humanity is rather dark.
His view of humanity was programmers at the average are stupid creatures. They cannot be trusted with sophisticated programming languages because they’re going to shoot their foot off or their hand off. And that would be kind of inconvenient to the regional development office of a mid-tier insurance company writing code that has to last for 20 years. Now it’s actually a very Thomas Sowell view of constrained capacity in humans that I’ve come to appreciate much later in life. But it’s also a very depressing view of programmers that there are just certain programmers who are too dumb to appreciate code poetry. They’re too ignorant to learn how to write it well. We need to give them a sandbox where they just won’t hurt themselves too much.
Matz went the complete opposite direction. He believes in humanity. He believes in the unlimited capacity of programmers to learn and become better so much so that he’s willing to put the stranger at his own level. This is the second part I truly appreciate about Ruby. Ruby allows you to extend base classes. You know how we just talked about five dot times is a way to iterate over a statement five times. That five is obviously a base class, it’s a number. Do you know what? You can add your own methods to that? I did extensively. In Rails, we have something called active support, which is essentially my dialect of Ruby for programming web applications. I’ll give you one example. I’ve added a method called Days to the Number. So if you do five .days, you get five days in seconds because seconds is the way we set cache expiration times and other things like that. So you can say cache expires in five .days and you’re going to get whatever-
Lex Fridman
That’s nice.
That’s nice.
DHH
… five times, 24 times 60 times 60 is or whatever the math is, right? Very humanly readable. In a normal programming language, you would type out the seconds and then you would have a little comment above it saying this represent five days. In Ruby, you get to write five days. But even better than that, Matz didn’t come up with it. Matz didn’t need the five days. I needed that because I needed to expire caches. I was allowed by Matz to extend his story with my own chapters on equal footing such that a reader of Ruby could not tell the difference between the code Matz wrote and the code that I wrote.
… five times, 24 times 60 times 60 is or whatever the math is, right? Very humanly readable. In a normal programming language, you would type out the seconds and then you would have a little comment above it saying this represent five days. In Ruby, you get to write five days. But even better than that, Matz didn’t come up with it. Matz didn’t need the five days. I needed that because I needed to expire caches. I was allowed by Matz to extend his story with my own chapters on equal footing such that a reader of Ruby could not tell the difference between the code Matz wrote and the code that I wrote.
He trusted me as a complete stranger from Denmark who he’d never met to mess with his beautiful story. That level of trust is essentially unheard of. I know there are other program languages that allow things with macros and so forth, but none do it in a way like Ruby does it. None does it with an articulated vision of humanity, a trust in humanity like Matz does. That is the opposite end of the spectrum of Java.
Lex Fridman
Yeah, I mean for my aesthetic sensibilities, just the way you described five .days, that’s really pleasant to me. I could see myself sitting alone sleep-deprived and just writing that. It’s just an easy thing. You can write it in a long way with a comment. You can write in multiple lines, you could do… And now with AI, I’m sure it’s going to generate it correctly, but there’s something really pleasant about the simplicity of that. I’m not sure what that is, but you’re right. There is a good feeling there. I’m sure we’ll talk about happiness from all kinds of philosophical angles, but that is what happiness is made of. That little good feeling there.
Yeah, I mean for my aesthetic sensibilities, just the way you described five .days, that’s really pleasant to me. I could see myself sitting alone sleep-deprived and just writing that. It’s just an easy thing. You can write it in a long way with a comment. You can write in multiple lines, you could do… And now with AI, I’m sure it’s going to generate it correctly, but there’s something really pleasant about the simplicity of that. I’m not sure what that is, but you’re right. There is a good feeling there. I’m sure we’ll talk about happiness from all kinds of philosophical angles, but that is what happiness is made of. That little good feeling there.
DHH
Exactly. It’s the good feeling that come out of a concept compressed to its pure essence. There’s nothing you can take away from that statement that’s superfluous.
Exactly. It’s the good feeling that come out of a concept compressed to its pure essence. There’s nothing you can take away from that statement that’s superfluous.
Lex Fridman
But see, I also want to push back a little bit because it’s not… Because I also programed in Perl a bunch just to be cool. So it’s not all about compression.
But see, I also want to push back a little bit because it’s not… Because I also programed in Perl a bunch just to be cool. So it’s not all about compression.
DHH
No, you can compress it too far. Perl golf is a thing where you can turn programs into something that’s unreadable for humans. Now the great thing about Perl was that it came out before Ruby. Matz was a great student of Wall, was a great student of Perl, was a great student of Python and Smalltalk and Lisp. He took inspiration from all of these prior attempts at creating good programming languages and really edited down the very best bits into this. So he was able to learn from his lessons. But what I found incredible about Ruby is that here we are, 2025, Ruby has been worked on for over 30 years and essentially the first draft is 90% of what we’re still using.
No, you can compress it too far. Perl golf is a thing where you can turn programs into something that’s unreadable for humans. Now the great thing about Perl was that it came out before Ruby. Matz was a great student of Wall, was a great student of Perl, was a great student of Python and Smalltalk and Lisp. He took inspiration from all of these prior attempts at creating good programming languages and really edited down the very best bits into this. So he was able to learn from his lessons. But what I found incredible about Ruby is that here we are, 2025, Ruby has been worked on for over 30 years and essentially the first draft is 90% of what we’re still using.
There was almost a sense of divine inspiration possible in wherever Matz was writing that initial version of Ruby that transcended time to such a degree that no one has still even begun to reach it. This is the other thing I always find fascinating. I generally believe in the efficient market theory that if someone comes up with a better mousetrap or better idea, others, they’ll eventually copy them to such an extent that perhaps the original mousetrap is no longer even remembered. No one has been able to copy that essence of Ruby. They borrowed elements and that’s totally fine, but Ruby still stands taller than everyone else on these metrics, on this trust in humanity and programmers.
Lex Fridman
And we should also say maybe the perfect programming language is that metric, and then there’s the successful language and those are often different. There’s something wonderful about the Brendan Eich story of creating JavaScript. There’s something truly beautiful about the way JavaScript took over the world. I’ve recently got to visit the Amazon jungle and just one of my favorite things to do is just to watch the ants take over anything, everything. And it’s just like it’s a nice distributed system. It’s a messy thing that doesn’t seem to be ordered, but it just works and the machinery of it.
And we should also say maybe the perfect programming language is that metric, and then there’s the successful language and those are often different. There’s something wonderful about the Brendan Eich story of creating JavaScript. There’s something truly beautiful about the way JavaScript took over the world. I’ve recently got to visit the Amazon jungle and just one of my favorite things to do is just to watch the ants take over anything, everything. And it’s just like it’s a nice distributed system. It’s a messy thing that doesn’t seem to be ordered, but it just works and the machinery of it.
DHH
Worse is Better. I mean that’s actually the name of a pattern in software development and other ways of how is the pattern of Linux. Linux was quantifiably worse than I think it was Minix at the time, other ways of it that were more cathedral, less bizarre, and it’s still want. That there’s something to it that the imperfections can help something go forward. It’s actually a trick I’ve studied to the degree that I now incorporated in almost all open source that I do. I make sure that when I release the first version of any new thing I work on, it’s a little broken. It’s a little busted in ways that invite people to come in and help me. Because there’s no easier way to get the collaboration of other programmers than to put something out that they know how to fix and improve.
Worse is Better. I mean that’s actually the name of a pattern in software development and other ways of how is the pattern of Linux. Linux was quantifiably worse than I think it was Minix at the time, other ways of it that were more cathedral, less bizarre, and it’s still want. That there’s something to it that the imperfections can help something go forward. It’s actually a trick I’ve studied to the degree that I now incorporated in almost all open source that I do. I make sure that when I release the first version of any new thing I work on, it’s a little broken. It’s a little busted in ways that invite people to come in and help me. Because there’s no easier way to get the collaboration of other programmers than to put something out that they know how to fix and improve.
Lex Fridman
Yeah, that’s awesome.
Yeah, that’s awesome.
DHH
But Ruby is somehow or was at least a little bit different in that regard. Not in all regards. Matz got the ethos of the language, the design of language just right. But the first versions of Ruby were terribly slow. It’s taken, I mean hundreds of man-years to get Ruby to be both this beautiful yet also highly efficient and really fast.
But Ruby is somehow or was at least a little bit different in that regard. Not in all regards. Matz got the ethos of the language, the design of language just right. But the first versions of Ruby were terribly slow. It’s taken, I mean hundreds of man-years to get Ruby to be both this beautiful yet also highly efficient and really fast.
Metaprogramming
Lex Fridman
We should say that the thing that made you fall in love with this particular programming language is Metaprogramming.
We should say that the thing that made you fall in love with this particular programming language is Metaprogramming.
DHH
Yes. So that takes all of these elements we’ve just talked about and turned them up to 11. I’ll explain Metaprogramming real simple.
Yes. So that takes all of these elements we’ve just talked about and turned them up to 11. I’ll explain Metaprogramming real simple.
Lex Fridman
Yeah, please.
Yeah, please.
DHH
Metaprogramming is essentially a version of the five .days. You get to add keywords to the language. Active record is the part of Rails that communicates with the database. This is a system where every table in the database is represented by a class. So if we take the user example, again, you do class, user descends from active record base, and then the first line you can write is this, I want my users to have many posts or have many comments. Let’s do that. We’re making some system where users can make comments. The very next line is, has underscore many space colon comments.
Metaprogramming is essentially a version of the five .days. You get to add keywords to the language. Active record is the part of Rails that communicates with the database. This is a system where every table in the database is represented by a class. So if we take the user example, again, you do class, user descends from active record base, and then the first line you can write is this, I want my users to have many posts or have many comments. Let’s do that. We’re making some system where users can make comments. The very next line is, has underscore many space colon comments.
Now you’ve set up a dependency between users and comments that will give you a whole host of access and factory methods for users to be able to own comments, to create comments, to update comments. In that line alone ” has many” looks like a keyword. It looks like it’s part of the Ruby language. That’s metaprogramming. When Rails is able to add these elements to how you define a class, and then that runs code that adds a bunch of methods to the use of class, that’s Metaprogramming.
And when Metaprogramming is used in this way, we call it domain-specific languages. You take a generic language like Ruby and you tailor it to a certain domain like describing relationships in a database at a object level. This is one of those early examples where you can do, user has many comments, belongs underscore two space colon account. Now you’ve set up a one-to-one relationship before we had a one-to-many relationship. Rails is rife with all these kinds of domain-specific languages where at sometimes it doesn’t even look like Ruby. You can’t identify Ruby keywords. You can just identify what looks like keywords in its own programming language. Now again, I know that Lisp and others also do this stuff. They just do it with the maximum amount of line noise that can ever be crammed into a programming language and Ruby does it at a level where you cannot tell my metaprogramming from Matz’s keywords and with zero line noise.
Lex Fridman
Yeah, I should say that my first love was Lisp. So there’s a slow tear that you can’t see.
Yeah, I should say that my first love was Lisp. So there’s a slow tear that you can’t see.
DHH
I’ve actually never written any real Lisp myself.
I’ve actually never written any real Lisp myself.
Lex Fridman
Well, how can you judge it so harshly then?
Well, how can you judge it so harshly then?
DHH
Because I have two eyes and I can look at code and my aesthetic sensibilities forbid me to even go much further, which is the limitation, I know. I should actually dive into Lisp because I’ve found that I’ve learned a lot just diving into, maybe I’m insulting Lisp again here, but the past of programming languages. With Smalltalk, for example, I think Smalltalk is a incredible experiment that also worked but isn’t suitable for today’s programming environments.
Because I have two eyes and I can look at code and my aesthetic sensibilities forbid me to even go much further, which is the limitation, I know. I should actually dive into Lisp because I’ve found that I’ve learned a lot just diving into, maybe I’m insulting Lisp again here, but the past of programming languages. With Smalltalk, for example, I think Smalltalk is a incredible experiment that also worked but isn’t suitable for today’s programming environments.
Dynamic typing
Lex Fridman
I love that we’re talking about Ruby so much and what a beautiful code is and what a beautiful programming language is. So one of the things that is I think implied maybe you made explicit in your descriptions there is that Ruby is dynamic typing versus strict typing. And you have been not just saying that it’s a nice thing, but that you will defend dynamic typing to the death. That freedom is a powerful freedom to preserve.
I love that we’re talking about Ruby so much and what a beautiful code is and what a beautiful programming language is. So one of the things that is I think implied maybe you made explicit in your descriptions there is that Ruby is dynamic typing versus strict typing. And you have been not just saying that it’s a nice thing, but that you will defend dynamic typing to the death. That freedom is a powerful freedom to preserve.
DHH
It’s the essence of what makes Ruby Ruby. This is why I don’t fully understand when people call for Ruby to add static typing because to me it’s the bedrock of what this is. Why would you want to turn one of the most beautiful languages into something far uglier? This is one of my primary objections to static typing. It’s not just that it limits you in certain ways. It makes metaprogramming harder. I write a bunch of metaprogramming. I’ve seen what it takes to do metaprogramming in TypeScript. That was actually one of the things that just really sent me on a tear of getting meta or getting TypeScript out of some of the projects that I’m involved with.
It’s the essence of what makes Ruby Ruby. This is why I don’t fully understand when people call for Ruby to add static typing because to me it’s the bedrock of what this is. Why would you want to turn one of the most beautiful languages into something far uglier? This is one of my primary objections to static typing. It’s not just that it limits you in certain ways. It makes metaprogramming harder. I write a bunch of metaprogramming. I’ve seen what it takes to do metaprogramming in TypeScript. That was actually one of the things that just really sent me on a tear of getting meta or getting TypeScript out of some of the projects that I’m involved with.
We pulled TypeScript out of Turbo, one of the front-end frameworks that we have because I tried to write to Metaprogramming in TypeScript and I was just infuriated. I don’t want that experience, but I also don’t want it from an aesthetic point of view. I hate repetition. We’ve just talked about how much I love that Ruby boils all of these expressions.
DHH
… about how much I love that Ruby boils all of these expressions down to its essence. You can’t remove one dot. You can’t remove one character without losing something. This moment you go for static typing, that you declare at least … I know there are ways to do implied typing and so forth, but let’s just take the stereotypical case of an example, for example. Capital U user, I’m declaring the type of the variable. Lowercase user. I’m now naming my variable, equals uppercase user or new uppercase user. I’ve repeated user three times. I don’t have time for this. I don’t have sensibilities for this. I don’t want my Ruby polluted with this. Now, I understand all the arguments for why people like static typing. One of the primary arguments is that it makes tooling easier. It makes it easier to do auto-complete in editors, for example. It makes it easier to find certain kinds of bugs, because maybe you’re calling methods that don’t exist on an object and the editor can actually catch that bug before you even run it. I don’t care.
… about how much I love that Ruby boils all of these expressions down to its essence. You can’t remove one dot. You can’t remove one character without losing something. This moment you go for static typing, that you declare at least … I know there are ways to do implied typing and so forth, but let’s just take the stereotypical case of an example, for example. Capital U user, I’m declaring the type of the variable. Lowercase user. I’m now naming my variable, equals uppercase user or new uppercase user. I’ve repeated user three times. I don’t have time for this. I don’t have sensibilities for this. I don’t want my Ruby polluted with this. Now, I understand all the arguments for why people like static typing. One of the primary arguments is that it makes tooling easier. It makes it easier to do auto-complete in editors, for example. It makes it easier to find certain kinds of bugs, because maybe you’re calling methods that don’t exist on an object and the editor can actually catch that bug before you even run it. I don’t care.
First of all, I don’t write code with tools, I write them with text editors. I chisel them out of the screen with my bare hands. I don’t auto-complete. This is why I love Ruby so much, and this is why I continue to be in love with the text editor rather than the IDE. I don’t want an IDE. I want my fingers to have to individually type out every element of it, because it will force me to stay in the world where Ruby is beautiful. Because as soon as it gets easy to type a lot of boilerplate, well, guess what? You can have a lot of boilerplate. Every single language basically that has great tooling support has a much higher tolerance for boilerplate because the thinking is, well, you’re not typing it anyway, you’re just auto- completing it. I don’t want that at all. I want something where the fabric I’m working in is just a text file, there’s nothing else to it. So these things play together. There’s the aesthetic part, there’s the tooling part, there’s the meta-programming part.
There’s the fact that Ruby’s ethos of duck typing … I don’t know if you’ve heard that term before. It’s essentially not about, can I call this method if an object is of a certain class? Can I call this method if the method responds? It’s very out of small talk in that regard. You don’t actually check whether that class has the method, which allows you to dynamically add methods at runtime and do all sorts of really interesting things that underpin all the beautiful meta-programming that we do in Ruby. I don’t want to lose any of that and I don’t care for the benefits. One of the benefits I’ve seen touted over and over again is that it’s much easier to write correct software. You’re going to have fewer bugs. You’re going to have less Null Pointer Exceptions, you’re going to have less of all of this stuff. Yeah, I don’t have any of that. It’s just not something that occurs in my standard mode of operation. I’m not saying I don’t have bugs, of course I do, but I catch those bugs with unit testing, with integration testing.
Those are the kinds of precautions that will catch logical bugs, things that compile but are wrong, along with the uncompilable stuff. So I’ve never been drawn into this world, and part of it is because I work on a certain class of systems. I fully accept that. If you’re writing systems that have five, 10, 50 million lines of code with hundreds, thousands or tens of thousands of programmers, I fully accept that you need different methods. What I object to is the idea that what’s right for a code base of 10 million lines of code, with 100,000 programmers working on it, is also the same thing I should be using in my bedroom to create Basecamp, because I’m just a single individual. That’s complete nonsense. In the real world, we would know that that makes no sense at all. That you don’t, I don’t know, use your Pagani to go pick up groceries at Costco. It’s a bad vehicle for that. It just doesn’t have the space, you don’t want to muddy the beautiful seats. You don’t want to do any of those things.
We know that certain things that are very good in certain domains don’t apply to all. In programming languages, it seems like we forget that. Now, to be fair, I also had a little bit perhaps of a reputation of forgetting that. When I first learned Ruby, I was so head over heels in love with this programming language that I almost found it unconceivable that anyone would choose any other programming language at all to write web applications. I kind of engaged the evangelism of Ruby on Rails in that spirit as a crusade, as, I just need to teach you the gospel. I just need to show you this conditional code that we just talked about, and you will convert at the point of a sharp argument. Now, I learned that’s not the way, and part of the reason it’s not the way is that programmers think differently. Our brains are configured differently. My brain is configured perfectly for Ruby, perfectly for a dynamically duck-typed language that I can chisel code out of a text editor with.
Scaling
Other people need the security of an IDE. They want the security of classes that won’t compile unless you call the methods on it. I have come to accept that, but most programmers don’t. They’re still stuck in essentially, I like static typing. Therefore, static typing is the only way to create reliable, correct systems. Which is just such a mind-blowing, to be blunt, idiotic thing to say in the face of mountains of evidence to the contrary. This is one of the reasons I’m so in love with Shopify as the flagship application for Ruby on Rails. Shopify exists at a scale that most programmers will never touch. On Black Friday, I think Shopify did one million requests per second. That’s not one million requests of images, that’s of dynamic requests that are funneling through the pipeline of commerce. I mean, Shopify runs something like 30% of all E-commerce stores on the damn Internet. A huge portion of all commerce in total runs through Shopify and that runs on Ruby on Rails. So Ruby on Rails is able to scale up to that level without using static typing in all of what it does.
Now, I know they’ve done certain experiments in certain ways, because they are hitting some of the limits that you will hit with dynamic typing. Some of those limits you hit with dynamic typing are actually, by the way, just limits you hit when you write 5 million lines of code. I think the Shopify monolith is about 5 million lines of code. At that scale, everything breaks because you’re at the frontier of what humans are capable of doing with programming languages. The difference in part is that Ruby is such a succinct language that those 5 million, if they had been written in, let’s just say Go or Java, would have been 50 or 25. Now, that might have alleviated some of the problems that you have when you work on huge systems with many programmers, but it certainly would also have compounded them; try to understand 25 million lines of code.
Lex Fridman
So the thing does scale. That’s a persistent myth, that it doesn’t scale, Shopify, and others, but Shopify I think is a great example. By the way, I love Shopify and I love Toby.
So the thing does scale. That’s a persistent myth, that it doesn’t scale, Shopify, and others, but Shopify I think is a great example. By the way, I love Shopify and I love Toby.
DHH
You’ve got to have Toby on. I just talked to him this morning
You’ve got to have Toby on. I just talked to him this morning
Lex Fridman
For sure. He’s a brilliant … I got to hang out with him in the desert somewhere, I forget, in Utah. He’s just a brilliant human. Shopify.com/luxe has been supporting this podcast for the longest time. I don’t think actually Toby knows that they sponsor this podcast. I mean, it’s a big company, right?
For sure. He’s a brilliant … I got to hang out with him in the desert somewhere, I forget, in Utah. He’s just a brilliant human. Shopify.com/luxe has been supporting this podcast for the longest time. I don’t think actually Toby knows that they sponsor this podcast. I mean, it’s a big company, right?
DHH
It’s a huge company. I think just under 10,000 employees, market cap of $120 billion, GMV of a quarter of a trillion every quarter.
It’s a huge company. I think just under 10,000 employees, market cap of $120 billion, GMV of a quarter of a trillion every quarter.
Lex Fridman
He’s involved with the details though.
He’s involved with the details though.
DHH
He is, very much so. Funny story about Toby, Toby was on the Rails core team back in the mid-2000s. Toby himself-
He is, very much so. Funny story about Toby, Toby was on the Rails core team back in the mid-2000s. Toby himself-
Lex Fridman
Really?
Really?
DHH
… wrote Active Merchant, which is one of the frameworks for creating shops. He wrote the Liquid templating language that Shopify still uses to this day. He has a huge list of contributions to the Rails ecosystem and he’s the CEO of the company. I think it’s very inspiring to me, because it’s such at the opposite end of what I like to do. I like to chisel code with my own hands most of the day, he runs a company of almost 10,000 people. That is literally, world commerce depends on it, a level of criticality I can’t even begin to understand. Yet, we can see eye to eye on so many of these fundamental questions in computer science and program development. That is a dynamic range, to be able to encompass Rails, being a great tool for the one developer who’s just starting out with an idea … who don’t even fully know everything, who is right at the level where PHP would have been a good fit in those late ’90s. Because yeah, I can probably upload something to an FTP server and so on.
… wrote Active Merchant, which is one of the frameworks for creating shops. He wrote the Liquid templating language that Shopify still uses to this day. He has a huge list of contributions to the Rails ecosystem and he’s the CEO of the company. I think it’s very inspiring to me, because it’s such at the opposite end of what I like to do. I like to chisel code with my own hands most of the day, he runs a company of almost 10,000 people. That is literally, world commerce depends on it, a level of criticality I can’t even begin to understand. Yet, we can see eye to eye on so many of these fundamental questions in computer science and program development. That is a dynamic range, to be able to encompass Rails, being a great tool for the one developer who’s just starting out with an idea … who don’t even fully know everything, who is right at the level where PHP would have been a good fit in those late ’90s. Because yeah, I can probably upload something to an FTP server and so on.
Rails does have more complexity than that, but it also has so much longer runway. The runway goes all the way to goddamn Shopify. That is about the most convincing argument I can make for dynamic range, that we can do a lot of it. And even having said that, Shopify is the outlier of course. I don’t think about Shopify as the primary target when I write Rails, I think of the single developer. Actually, I do think about Shopify, but I don’t think about Shopify now. I think of Shopify when Toby was writing Snow Devil, which was the first E-commerce store to sell snowboards that he created. That was the pre-Shopify Shopify he created all by himself. And that was possible because Ruby on Rails isn’t just about beautiful code, it’s just as much about productivity. It’s just as much about the impact that an individual programmer is able to have.
That they can build system where they can keep the whole thing in their head and be able to move it forward, such that you can go from one developer sitting and working on something … and that something is Shopify, and it turns into what it is today. When we talk about programming languages and we compare them, we often compare them at a very late stage. Like, what is the better programming language for, let’s say Twitter in 2009 when it’s already a huge success? Twitter was started on Ruby on Rails. They then hit some scaling problems, it was a big debacle at the time. They end up then I think writing it in some other language, which by the way I think is the best advertisement ever for Ruby on Rails, because nothing fucking happened for 10 years after they switched over, essentially zero innovation. Some of that was because they were doing a long conversion, and all of the early success in part came because they had the agility to quickly change and adopt and so forth. That’s what startups need. That’s what Shopify needed, that’s what Twitter needed.
That’s what everyone needs, and that’s the number one priority for Ruby on Rails, to make sure that we don’t lose that. Because what happens so often when development tools and programming language are driven by huge companies, is that they mirror their org chart, React and everything else needed to use that, is in some ways a reflection of how Meta builds Facebook. Because of course it is, because of course it’s an distraction of that. I’m not saying React isn’t a great tool and that can’t used by smaller teams, of course it can, but it’s born in a very different context than something like Ruby on Rails.
Lex Fridman
Let me say as a small aside … because I think we might return to Shopify and celebrate it often, just a personal note. This particular podcast has way more sponsors, and sponsors that want to be sponsors, than I could possibly ever have. It’s really, really important for me to not give a shit and to be able to celebrate people. I celebrate people, I celebrate companies, and I don’t care that they’re sponsoring. I really don’t care. I just want to make that very explicit, because we’re going to continue saying positive things about Shopify. I don’t care, stop sponsoring, it doesn’t really matter to me. Yeah, I just want to make that explicit. But to linger on the scaling thing with the Twitter and the Shopify, can you just explain to me what Shopify is doing with the JIT? What did they have to try to do to scale this thing, because that’s kind of an incredible story, right?
Let me say as a small aside … because I think we might return to Shopify and celebrate it often, just a personal note. This particular podcast has way more sponsors, and sponsors that want to be sponsors, than I could possibly ever have. It’s really, really important for me to not give a shit and to be able to celebrate people. I celebrate people, I celebrate companies, and I don’t care that they’re sponsoring. I really don’t care. I just want to make that very explicit, because we’re going to continue saying positive things about Shopify. I don’t care, stop sponsoring, it doesn’t really matter to me. Yeah, I just want to make that explicit. But to linger on the scaling thing with the Twitter and the Shopify, can you just explain to me what Shopify is doing with the JIT? What did they have to try to do to scale this thing, because that’s kind of an incredible story, right?
DHH
Yeah. One of the great contributions that Shopify has made to the entire Ruby ecosystem … not just Rails, but in particular Rails, is YJIT. YJIT is their compiler for Ruby that just makes everything a lot more efficient. At Shopify scale, eking out even a five, 10% improvement in Ruby’s overhead and execution time is a huge deal. Now, Shopify didn’t need YJIT. Shopify was already running on the initial version of Ruby that was I think 10 times slower than what we have today, if you look back upon the Ruby 186 that Toby probably started on, just as I started on. That was enough to propel Shopify to the scale that it has today. A lot of the scaling conversation is lost in a failure to distinguish two things. Scale is one package we talk about when there are really multiple packages inside of it. One is runtime performance, latency, how fast can you execute a single request? Can it happen fast enough that the user will not notice? If your Rails request takes a second and a half to execute, the user’s going to notice. Your app is going to feel slow and sluggish.
Yeah. One of the great contributions that Shopify has made to the entire Ruby ecosystem … not just Rails, but in particular Rails, is YJIT. YJIT is their compiler for Ruby that just makes everything a lot more efficient. At Shopify scale, eking out even a five, 10% improvement in Ruby’s overhead and execution time is a huge deal. Now, Shopify didn’t need YJIT. Shopify was already running on the initial version of Ruby that was I think 10 times slower than what we have today, if you look back upon the Ruby 186 that Toby probably started on, just as I started on. That was enough to propel Shopify to the scale that it has today. A lot of the scaling conversation is lost in a failure to distinguish two things. Scale is one package we talk about when there are really multiple packages inside of it. One is runtime performance, latency, how fast can you execute a single request? Can it happen fast enough that the user will not notice? If your Rails request takes a second and a half to execute, the user’s going to notice. Your app is going to feel slow and sluggish.
You have to get that response time down below, let’s say at least 300 milliseconds. I like to target a 100 milliseconds as my latency. That kind of performance, how much performance of that kind of latency can you squeeze out of a single CPU core? That tells you something about what the price of a single request will be. But then whether you can deal with one million requests a second, like Shopify is doing right now, if you have one box that can do 1,000 requests a second, you just need X boxes to get up to a million. What you’ll actually find is that when it comes to programming languages, they’re all the same in this way. They all scale, largely, beautifully horizontally, you just add more boxes. The hard parts of scaling a Shopify is typically not the programming language, it’s the database. That’s actually one of the challenges that Shopify has now is, how do you deal with MySQL at the scale that they’re operating at? When do you need to move to other databases to get worldwide performance? All of these things. The questions about scaling Ruby are economic questions.
If we’re spending so-and- so much on application servers, if we can get just 5% more performance out of Ruby, well, we could save 5% of those servers and that could filter down into the budget. Now, that analysis concludes into basically one thing, Ruby is a luxury language. It’s a luxury, the highest luxury, in my opinion. It is the Coco Chanel of programming languages, something that not everyone can afford, and I mean this in the best possible way. There are some applications on the Internet where each request has so little value, you can’t afford to use a luxurious language like Ruby to program in it. You simply have to slum it with a C or a Go or some other low-level language, or a Rust, talk about line noise there.
Lex Fridman
That’s like the thrift store of languages.
That’s like the thrift store of languages.
DHH
Exactly. What you need, you need a very low level to do it. You can’t afford to use a luxury language to build it with. That’s not true of Shopify. It wasn’t true of Basecamp even back in 2004. It’s not been true of 99% of all web applications ever created because the main cost component of 99% of web applications, it’s not CPU cores. It’s web cores, it’s human cores. It’s human capacity to understand and involve systems. It’s their personal productivity. I did a calculation once when someone had for the 400th time said, “Oh, if you switch from Ruby to some faster language, you could save a bunch of money.” I calculated it out that at the time … and I think the last time I did this calculation was almost a decade ago, we were spending about 15% of our operating budget on Ruby application servers. So for me, to improve my cost profile of the business by seven percentage points, I’d have to pick something twice as fast. That’s quite hard.
Exactly. What you need, you need a very low level to do it. You can’t afford to use a luxury language to build it with. That’s not true of Shopify. It wasn’t true of Basecamp even back in 2004. It’s not been true of 99% of all web applications ever created because the main cost component of 99% of web applications, it’s not CPU cores. It’s web cores, it’s human cores. It’s human capacity to understand and involve systems. It’s their personal productivity. I did a calculation once when someone had for the 400th time said, “Oh, if you switch from Ruby to some faster language, you could save a bunch of money.” I calculated it out that at the time … and I think the last time I did this calculation was almost a decade ago, we were spending about 15% of our operating budget on Ruby application servers. So for me, to improve my cost profile of the business by seven percentage points, I’d have to pick something twice as fast. That’s quite hard.
Versus, if Ruby and Ruby on Rails was even 10% more productive than something else, I would move the needle far more, because making individual programmers more productive actually matters a lot more. This is why people are so excited about AI. This is why they’re freaking out over the fact that a single programmer in Silicon Valley, who makes $300,000 a year, can now do the work of three or five, at least in theory. I haven’t actually seen that fully in practice. But let’s just assume the theory is correct, if not now, then in six months, that’s a huge deal. That matters so much more than whether you can squeeze a few more cycles out of the CPU when it comes to these kinds of business applications. If you’re making Unreal Engine rendering stuff, like Tim Sweeney you had on, yeah, he needs to really sweat all those details. The Nanite engine can’t run on Ruby. It’s never going to, it was not meant for that, fine. These kinds of business applications absolutely can.
And everything people are excited about AI for right now, that extra capacity to just do more, that was why we were excited about Ruby back in the early 2000s. It was because I saw that if we could even squeeze out a 10% improvement of the human programmer, we’d be able to do so much more for so much less.
Future of programming
Lex Fridman
We probably argue about this, but I really like working together with AI, collaborating with AI. I would argue that the kind of code you want AI to generate is human-readable, human interpretable. If it’s generating pro golf code, it’s not a collaboration. So it has to be speaking the human … it’s not just, you’re writing the prompts in English, you also want to read the responses in the human-interpretable language at Ruby, right? So that actually is beneficial for AI too. Because you’ve said that for you the sculptor, the elitist Coco Chanel sculptor, you want on your fancy keyboard to type every single letter yourself with your own fingers. But it’s also, the benefit of Ruby also applies once that is written by AI and you’re actually doing with your own fingers the editing part, because you can interact with it because it’s human interpretable.
We probably argue about this, but I really like working together with AI, collaborating with AI. I would argue that the kind of code you want AI to generate is human-readable, human interpretable. If it’s generating pro golf code, it’s not a collaboration. So it has to be speaking the human … it’s not just, you’re writing the prompts in English, you also want to read the responses in the human-interpretable language at Ruby, right? So that actually is beneficial for AI too. Because you’ve said that for you the sculptor, the elitist Coco Chanel sculptor, you want on your fancy keyboard to type every single letter yourself with your own fingers. But it’s also, the benefit of Ruby also applies once that is written by AI and you’re actually doing with your own fingers the editing part, because you can interact with it because it’s human interpretable.
DHH
The paradigm I really love with this was something Elon actually said on one of your shows when you guys were talking about Neuralink, that Neuralink allows the bandwidth between you and the machine to increase. That language, either spoken or written, is very low bandwidth. If you are to calculate just how many bits we can exchange as we’re sitting here, it’s very slow. Ruby has a much higher bandwidth of communication, revealed, conveys so much more concept per character than most other programming languages do. So when you are collaborating with AI, you want really high bandwidth. You want it to be able to produce programs with you, whether you’re letting it write the code or not, that both of you can actually understand really quickly. And that you could compress a grand concept, a grand system into far fewer parts that both of you can understand. Now, I actually love collaborating with AI too. I love chiseling my code, and the way I use AI is in a separate window. I don’t let it drive my code. I’ve tried that. I’ve tried the Cursors and the Windsurfs and I don’t enjoy that way of writing.
The paradigm I really love with this was something Elon actually said on one of your shows when you guys were talking about Neuralink, that Neuralink allows the bandwidth between you and the machine to increase. That language, either spoken or written, is very low bandwidth. If you are to calculate just how many bits we can exchange as we’re sitting here, it’s very slow. Ruby has a much higher bandwidth of communication, revealed, conveys so much more concept per character than most other programming languages do. So when you are collaborating with AI, you want really high bandwidth. You want it to be able to produce programs with you, whether you’re letting it write the code or not, that both of you can actually understand really quickly. And that you could compress a grand concept, a grand system into far fewer parts that both of you can understand. Now, I actually love collaborating with AI too. I love chiseling my code, and the way I use AI is in a separate window. I don’t let it drive my code. I’ve tried that. I’ve tried the Cursors and the Windsurfs and I don’t enjoy that way of writing.
One of the reasons I don’t enjoy that way of writing is, I can literally feel competence draining out of my fingers. That level of immediacy with the material disappears. Where I felt this the most was, I did this remix of Ubuntu called Omakub when I switched to Linux. It’s all written in Bash. I’d never written any serious amount of code in Bash before, so I was using AI to collaborate, to write a bunch of Bash with me, because I needed all this. I knew what I wanted, I could express it in Ruby, but I thought it was an interesting challenge to filter it through Bash. Because what I was doing was setting up a Linux machine, that’s basically what Bash was designed for. It’s a great constraint. But what I found myself doing was asking AI for the same way of expressing a conditional, for example, in Bash over and over again. That by not typing it, I wasn’t learning it. I was using it, I was getting the expression I wanted, but I wasn’t learning it. I got a little scared.
I got a little scared, is this the end of learning? Am I no longer learning if I’m not typing? The way I, for me, recast that was, I don’t want to give up on the AI. It’s such a better experience as a programmer to look up APIs, to get a second opinion on something, to do a draft, but I have to do the typing myself because you learn with your fingers. If you’re learning how to play the guitar, you can watch as many YouTube videos as you want, you’re not going to learn the guitar. You have to put your fingers on the strings to actually learn the motions. I think there is a parallel here to programming, where programming has to be learned in part by the actual typing.
Lex Fridman
I’m just really, this is fascinating. Listen, part of my brain agrees with you 100%, part doesn’t. I think AI should be in the loop of learning. Now, current systems don’t do that, but I think it’s very possible for Cursor to say, to basically force you to type certain things. So if you set the mode of learning … I don’t want to be this, give up on AI. I think vibe coding is a skill, so for an experienced programmer it’s too easy to dismiss vibe coding as a thing.
I’m just really, this is fascinating. Listen, part of my brain agrees with you 100%, part doesn’t. I think AI should be in the loop of learning. Now, current systems don’t do that, but I think it’s very possible for Cursor to say, to basically force you to type certain things. So if you set the mode of learning … I don’t want to be this, give up on AI. I think vibe coding is a skill, so for an experienced programmer it’s too easy to dismiss vibe coding as a thing.
DHH
I agree, I wouldn’t dismiss it.
I agree, I wouldn’t dismiss it.
Lex Fridman
But I think you need to start building that skill and start to figure out, how do you prevent the competency from slipping away from your fingers and brain? How do you develop that skill in parallel to the other skill? I don’t know. I think it’s a fascinating puzzle though. I know too many really strong programmers that just avoid AI, because it’s currently a little too dumb.
But I think you need to start building that skill and start to figure out, how do you prevent the competency from slipping away from your fingers and brain? How do you develop that skill in parallel to the other skill? I don’t know. I think it’s a fascinating puzzle though. I know too many really strong programmers that just avoid AI, because it’s currently a little too dumb.
DHH
Yes. It’s a little too slow, is actually my main problem. It’s a little too dumb in some ways, but it’s a little too slow in other ways. When I use Claude’s Code, the terminal version of Claude … which is actually my preferred way of using it, I get too impatient. It feels like I’m going back to a time where code had to compile and I had to go do something else, boil some tea while the code is compiling. Well, I’ve been working in Ruby for 20 years, I don’t have compile wait in me anymore, so there’s that aspect of it. But I think the more crucial aspect for me is, I really care about the competence. I’ve seen what happens to even great programmers the moment they put away the keyboard, because even before AI, this would happen as soon as people would get promoted. Most great programmers who work in large businesses, stop writing code on a daily basis because they simply have too many meetings to attend to, they have too many other things to do, and invariably they lose touch with programming.
Yes. It’s a little too slow, is actually my main problem. It’s a little too dumb in some ways, but it’s a little too slow in other ways. When I use Claude’s Code, the terminal version of Claude … which is actually my preferred way of using it, I get too impatient. It feels like I’m going back to a time where code had to compile and I had to go do something else, boil some tea while the code is compiling. Well, I’ve been working in Ruby for 20 years, I don’t have compile wait in me anymore, so there’s that aspect of it. But I think the more crucial aspect for me is, I really care about the competence. I’ve seen what happens to even great programmers the moment they put away the keyboard, because even before AI, this would happen as soon as people would get promoted. Most great programmers who work in large businesses, stop writing code on a daily basis because they simply have too many meetings to attend to, they have too many other things to do, and invariably they lose touch with programming.
That doesn’t mean they forget everything but if you don’t have your fingers in the sauce, the source, you are going to lose touch with it. There’s just no other way. I don’t want that because I enjoy it too much. This is not just about outcomes. This is what’s crucial to understand, programming for programmers who like to code is not just about the programs they get out of it. That may be the economic value. It’s not the only human value. The human value is just as much in the expression. When someone who sits down on a guitar and plays Stairways to Heaven, there’s a perfect recording of that, that will last in eternity. You can just put it on Spotify, you don’t actually need to do it. The joy is to command the guitar yourself. The joy of a programmer, of me as a programmer, is to type the code myself. If I elevate, if I promote myself out of programming, I turn myself into a project manager, a project manager of a murder of AI crows, as I wrote the other day. I could have become a project manager my whole career.
I could have become a project manager 20 years ago if I didn’t care to write code myself and I just wanted outcomes. That’s how I got started in programming, I just wanted outcomes. Then I fell in love with programming, and now I’d rather retire than giving it up. Now, that doesn’t mean you can’t have your cake and eat it too. I’ve done some vibe coding where I didn’t care that I wasn’t playing myself. I just wanted to see something that was an idea in my head. I wanted to see something, that’s fine. I also use AI all day long. In fact, I’m already at the point where if you took it away from me, I’d be like, oh my God, how do we even look things up on the Internet anymore? Is Stack Overflow still around, is forum still a thing? How do I even find answers to some of these questions I have all day long? I don’t want to give up AI. In fact, I’d say the way I like to use AI, I’m getting smarter every day because of AI because I’m using AI to have it explain things to me.
Even the stupid questions I would be a little embarrassed to even enter into Google, AI is perfectly willing to give me the ELI5 explanation of some Unix command I should have known already but I don’t. I’m sorry, can you just explain it to me? Now I know the thing. So at the end of the day, of me working with AI all day long, I’m a little bit smarter, like 5%. Sorry, not 5%, half a percent maybe, that compounds over time. But what I’ve also seen when I worked on the Omakub project and I tried to let AI drive for me, I felt I was maybe half a percent dumber at the end of the day.
Lex Fridman
Okay, you’ve said a lot of interesting things. First of all, let’s just start at the very fact that asking dumb questions, if you go to Stack Overflow and ask a dumb question or read somebody else’s dumb question and the answer to it, there’s a lot of judgment there. AI, sometimes to an excessive degree, has no judgment. It usually says, oh, that’s a great question.
Okay, you’ve said a lot of interesting things. First of all, let’s just start at the very fact that asking dumb questions, if you go to Stack Overflow and ask a dumb question or read somebody else’s dumb question and the answer to it, there’s a lot of judgment there. AI, sometimes to an excessive degree, has no judgment. It usually says, oh, that’s a great question.
DHH
To a fault.
To a fault.
Lex Fridman
Yeah. Oh, that’s wonderful. Yeah. I mean, it’s so conducive to learning. It’s such a wonderful tool for learning and I too would miss it. It’s a great basically search engine into all kinds of nuances of a particular programming language, especially if you don’t know it that well. Or APIs you can load in documentation, it’s just so great for learning. For me personally, I mean, on the happiness scale, it makes me more excited to program. I don’t know what that is exactly. Part of that is the … I’m really sorry, Stack Overflow is an incredible website but there is a negativity there. There’s a judgment there. It’s just exciting to be with a hype man next to me just saying, yeah, that’s a great idea. I’ll say, no, that’s wrong, I’ll correct the AI. The AI will say, you’re absolutely right, how did I not think about that? You’re ready to go. I’m like, holy shit, I’m having, it’s like a buddy that’s really being positive and is very smart and is challenging me to think.
Yeah. Oh, that’s wonderful. Yeah. I mean, it’s so conducive to learning. It’s such a wonderful tool for learning and I too would miss it. It’s a great basically search engine into all kinds of nuances of a particular programming language, especially if you don’t know it that well. Or APIs you can load in documentation, it’s just so great for learning. For me personally, I mean, on the happiness scale, it makes me more excited to program. I don’t know what that is exactly. Part of that is the … I’m really sorry, Stack Overflow is an incredible website but there is a negativity there. There’s a judgment there. It’s just exciting to be with a hype man next to me just saying, yeah, that’s a great idea. I’ll say, no, that’s wrong, I’ll correct the AI. The AI will say, you’re absolutely right, how did I not think about that? You’re ready to go. I’m like, holy shit, I’m having, it’s like a buddy that’s really being positive and is very smart and is challenging me to think.
And even if I never use the code it generates, I’m already a better programmer. But actually the deeper thing is, for some reason I’m having more fun. That’s a really, really important thing.
DHH
I like to think of it as a pair programmer for exactly that reason. Pair programming came vogue in the 2000s, where you’d have two programmers in front of one machine and you’d push the keyboard between you. One programmer would be driving, they’d be typing in. The other programmer would essentially sit and watch the code, suggest improvements, look something up. That was a really interesting dynamic. Now unfortunately, I’m an introvert, so I can do that for about five minutes before I want to jump off a bridge. So it doesn’t work for me as a full-time occupation, but AI allows me to have all the best of that experience all the time. Now, I think what’s really interesting what we said about, it makes it more fun. I hadn’t actually thought about that, but what it’s made more fun to me is to be a beginner again. It made it more fun to learn Bash successfully for the first time.
I like to think of it as a pair programmer for exactly that reason. Pair programming came vogue in the 2000s, where you’d have two programmers in front of one machine and you’d push the keyboard between you. One programmer would be driving, they’d be typing in. The other programmer would essentially sit and watch the code, suggest improvements, look something up. That was a really interesting dynamic. Now unfortunately, I’m an introvert, so I can do that for about five minutes before I want to jump off a bridge. So it doesn’t work for me as a full-time occupation, but AI allows me to have all the best of that experience all the time. Now, I think what’s really interesting what we said about, it makes it more fun. I hadn’t actually thought about that, but what it’s made more fun to me is to be a beginner again. It made it more fun to learn Bash successfully for the first time.
Now, I had to do the detour where I let it write all the code for me, and I realized I wasn’t learning nearly as much as I hoped I would. That I started doing once I typed it out myself. But it gave me the confidence that, you know what? If I need to do some iOS programming myself … I haven’t done that in, probably six years was the last time I dabbled in it. I never really built anything for real. I feel highly confident now that I could sit down with AI and I could have something in the app store by the end of the week. I would not have that confidence unless I had a pair programming body like AI. I don’t actually use it very much for Ruby code. I’m occasionally impressed whenever I try it, like, oh, it got this one thing right, that is truly remarkable and it’s actually pretty good. And then I’ll ask two more questions and I go like, oh yeah, okay, if you were my junior programmer I’d start tapping my fingers and going like, you’ve got to shape up.
Now, the great thing of course is, we can just wait five minutes. The Anthropic CEO seems to think that 90% of all code by the end of the year is going to be written by AI. I’m more than a little bit skeptical about that, but I’m open-minded about the prospect that programming potentially will turn into a horse when done manually. Something we do recreationally is no longer a mode of transportation to get around LA. You’re not going to saddle up and go to the grocery store and pick up stuff from Whole Foods in your saddlebags. That’s just not a thing anymore. That could be the future for programming, for manual programming, entirely possible. I also don’t care. Even though we have great renditions of all the best songs, as I said, there are millions of people who love to play the guitar. It may no longer have as much economic value as it once did. I think that I’m quite convinced is true, that we perhaps have seen the peak.
Now, I understand the paradox, when the price of something goes down, actually the overall usage goes up, and total spend on that activity goes up. That could also happen maybe. But what we’re seeing right now is that a lot of the big shops, a lot of the big companies, are not hiring like they were five years ago. They’re not anticipating they’re going to need tons more programmers. Controversially, Toby actually put out a memo inside of Shopify asking everyone who’s considering hiring someone to ask the question, could this be done by AI? Now, he’s further ahead on this question than I am. I look at some of the code and [trenches 01:40:37] and I go like, I’d love to use AI more, and I see how it’s making us more productive. But it’s not yet at the level where I just go like, oh, we have this project, let me just give it to the AI agent and it’s going to go off and do it.
Lex Fridman
But let’s just be honest, you’re like a Clint Eastwood type character cowboy on a horse seeing cars going around. You’re like, well-
But let’s just be honest, you’re like a Clint Eastwood type character cowboy on a horse seeing cars going around. You’re like, well-
DHH
That’s part of it. I think it is important to have that humility, that what you are good at may no longer be what society values. This has happened a million times in history … that you could have been exceptionally good at saddle making, for example. That’s something that a lot of people used to care about because everyone rode a horse. And then suddenly riding a horse became this niche hobby, that there’s some people care about it, but not nearly as many. That’s okay. Now, the other thing of this is, I’ve had the good fortune to have been a programmer for nearly 30 years. That’s a great run. I try to look at life in this way, that I’ve already been blessed with decades of economically viable, highly valuable ways of translating what I like best in the working world, to write Ruby code. That that was so valuable that I could make millions and millions of dollars doing it, and if that’s over tomorrow, I shouldn’t look at that with regret. I should look at it with gratitude.
That’s part of it. I think it is important to have that humility, that what you are good at may no longer be what society values. This has happened a million times in history … that you could have been exceptionally good at saddle making, for example. That’s something that a lot of people used to care about because everyone rode a horse. And then suddenly riding a horse became this niche hobby, that there’s some people care about it, but not nearly as many. That’s okay. Now, the other thing of this is, I’ve had the good fortune to have been a programmer for nearly 30 years. That’s a great run. I try to look at life in this way, that I’ve already been blessed with decades of economically viable, highly valuable ways of translating what I like best in the working world, to write Ruby code. That that was so valuable that I could make millions and millions of dollars doing it, and if that’s over tomorrow, I shouldn’t look at that with regret. I should look at it with gratitude.
Lex Fridman
But you’re also a highly experienced, brilliant and opinionated human …
But you’re also a highly experienced, brilliant and opinionated human …
Lex Fridman
Brilliant and opinionated human being. So it’s really interesting to get your opinion on the future of the horse because there’s a lot of young people listening to this who love programming or who are excited by the possibility of building stuff with software, with Ruby on Rails, that kind of language and now the possibility.
Brilliant and opinionated human being. So it’s really interesting to get your opinion on the future of the horse because there’s a lot of young people listening to this who love programming or who are excited by the possibility of building stuff with software, with Ruby on Rails, that kind of language and now the possibility.
DHH
But is it a career?
But is it a career?
Lex Fridman
Is it a career and how if indeed a single person can build more and more and more with the help of AI, how do they learn that skill? Is this a good skill to learn? I mean, that to me is the real mystery here because I think it’s still absolutely true that you have to learn how to program from scratch currently, but how do you balance those two skills? Because I too, as I’m thinking now, there is a scary slipping away of skill that happens in a matter of really minutes on a particular piece of code. It’s scary the way driving when you have a car drive for you doesn’t quite slip away that fast. So that really scares me. When somebody comes up to me and asks me how do I learn to program? I don’t know what the advice is because I think it’s not enough to just use Cursor or Copilot to generate code.
Is it a career and how if indeed a single person can build more and more and more with the help of AI, how do they learn that skill? Is this a good skill to learn? I mean, that to me is the real mystery here because I think it’s still absolutely true that you have to learn how to program from scratch currently, but how do you balance those two skills? Because I too, as I’m thinking now, there is a scary slipping away of skill that happens in a matter of really minutes on a particular piece of code. It’s scary the way driving when you have a car drive for you doesn’t quite slip away that fast. So that really scares me. When somebody comes up to me and asks me how do I learn to program? I don’t know what the advice is because I think it’s not enough to just use Cursor or Copilot to generate code.
DHH
It’s absolutely not enough. Not if you want to learn, none of you want to become better at it. If you just become a tap monkey, maybe you’re productive in a second, but then you have to realize, well, can anyone just tap if that’s all we’re doing is just sitting around all day long tapping? Yes, yes, yes, yes, yes. That’s not a marketable skill. Now, I always preface this both to myself and when I speak to others about it, is rule number note one, nobody fucking knows anything. No one can predict even six months ahead.
It’s absolutely not enough. Not if you want to learn, none of you want to become better at it. If you just become a tap monkey, maybe you’re productive in a second, but then you have to realize, well, can anyone just tap if that’s all we’re doing is just sitting around all day long tapping? Yes, yes, yes, yes, yes. That’s not a marketable skill. Now, I always preface this both to myself and when I speak to others about it, is rule number note one, nobody fucking knows anything. No one can predict even six months ahead.
Future of AI
Right now, we’re probably at peak AI future hype because we see all the promise, because so much of it is real and so many people have experienced it themselves. This mind-boggling thing that the silicon is thinking in some way that feels eerily reminiscent of humans. I’d actually say the big thing for me wasn’t even ChatGPT, it wasn’t even Claude. It was DeepSeek. Running DeepSeek locally and seeing the think box where it converses with itself about how to formulate the response. I almost wanted to think, is this a gimmick? Is it doing this as a performance for my benefit? But that’s not actually how it thinks. If this is how it actually thinks. Okay, I’m a little scared. This is incredibly human how it thinks in this way, but where does that go? So in ’95, one of my favorite movies, one of my favorite B movies came out, The Lawnmower Man.
Lex Fridman
Great movie,
Great movie,
DHH
Incredible movie about virtual reality. Being an avatar and living in VR, the story was a mess, but the aesthetics, the world that build up was incredible and I thought, we’re five years away. I’m going to be living in VR now. I’m just going to be floating around. I’m going to be an avatar. This is where most humans can spend most of the day. That didn’t happen. We’re 30 years later, VR is still not here. It’s here for gaming. It’s here for some specialized applications. My oldest loves playing Gorilla Tag. I don’t know if you’ve tried that. That’s basically the hottest VR game. Wonderful. It’s great. It’s really hard to predict the future because we just don’t know. And then when you factor into AI and you have even the smartest people go like, “I don’t think we fully understand how this works.”
Incredible movie about virtual reality. Being an avatar and living in VR, the story was a mess, but the aesthetics, the world that build up was incredible and I thought, we’re five years away. I’m going to be living in VR now. I’m just going to be floating around. I’m going to be an avatar. This is where most humans can spend most of the day. That didn’t happen. We’re 30 years later, VR is still not here. It’s here for gaming. It’s here for some specialized applications. My oldest loves playing Gorilla Tag. I don’t know if you’ve tried that. That’s basically the hottest VR game. Wonderful. It’s great. It’s really hard to predict the future because we just don’t know. And then when you factor into AI and you have even the smartest people go like, “I don’t think we fully understand how this works.”
Lex Fridman
But then on the flip side, you have Moore’s law that seems to work for many, many, many years in decreasing the size of transistor, for example. Flash didn’t take over the internet, but Moore’s law worked, so we don’t know which one AI is.
But then on the flip side, you have Moore’s law that seems to work for many, many, many years in decreasing the size of transistor, for example. Flash didn’t take over the internet, but Moore’s law worked, so we don’t know which one AI is.
DHH
It is what it is. And this is what I find so fascinating to, I forget who did this presentation, but someone in the web community, this great presentation on the history of the airplane. So you go from the Wright brothers flying in, what was 1903 or something like that, and 40 years later you have a jet flight, just an unbelievable amount of progress in four decades. Then in ’56, I think it was, the whole design for the Boeing 747 century precursor was designed and basically nothing has happened since. Just minor tweaks and improvements on the flying experience since the ’50s. Somehow, if you were to predict where flying was going to go and you were sitting in ’42 and you’d seen, you’d remember the Wright brothers flying in oh three and you were seeing that jet engines coming, you’re like, “We’re going to fly to the stars in another two decades.”
It is what it is. And this is what I find so fascinating to, I forget who did this presentation, but someone in the web community, this great presentation on the history of the airplane. So you go from the Wright brothers flying in, what was 1903 or something like that, and 40 years later you have a jet flight, just an unbelievable amount of progress in four decades. Then in ’56, I think it was, the whole design for the Boeing 747 century precursor was designed and basically nothing has happened since. Just minor tweaks and improvements on the flying experience since the ’50s. Somehow, if you were to predict where flying was going to go and you were sitting in ’42 and you’d seen, you’d remember the Wright brothers flying in oh three and you were seeing that jet engines coming, you’re like, “We’re going to fly to the stars in another two decades.”
We’re going to invent super mega hypersonic flights that’s going to traverse the earth in two hours, and then that didn’t happen. It tapped out. This is what’s so hard about predicting the future. We can be so excited in the moment because we’re drawing a line through early dots on a chart, and it looks like those early dots is just going up into the right and sometimes it’s just flattened out. This is also one of those things where we have so much critical infrastructure, for example, that still runs on COBOL, that about five humans around the world really understand truly, deeply that it’s possible for society to lose a competence it still needs because it’s chasing the future.
COBOL is still with us. This is one of the things I think about with programming. Ruby on Rails is at such a level now that in 50 years from now, it’s exceedingly likely that there’s still a ton of Ruby on Rails systems running around now, very hard to predict what that exact world is going to be like, but yesterday’s weather tells us that if there’s still COBOL code from the ’70s operating social security today, and we haven’t figured out a clean way to convert that, let alone understand it, we should certainly be humble about predicting the future.
I don’t think any of the programmers who wrote that COBOL code back in the ’70s had any idea that in 2025 checks were still being cut off the business logic that they had encoded back then. But that just brings me to the conclusion on the question for what should a young programmer do? You’re not going to be able to predict the future. No one’s going to be able to predict the future. If you like programming, you should learn programming. Now, is that going to be a career forever? I don’t know, but what’s going to be a career forever? Who knows? A second ago we thought that it was the blue-collar labor that was going to be abstracted. First, it was the robots that were going to take over. Then Gen AI comes out, and then all the artists suddenly look like, “Holy shit, is this going to do all animation now? Is going to do all music now?”
They get real scared, and now I see the latest Tesla robot going like, “Oh, maybe we’re back now to blue-collar being in trouble because if it can dance like that, it can probably fix a toilet.” So no one knows anything, and you have to then position yourself for the future in such a way that it doesn’t matter that you pick a profession or path where if it turns out that you have to retool and re-skill, you’re not going to regret the path you took. That’s a general life principle. For me, how I look at all endeavors I involved myself in is I want to be content with all outcomes.
When we start working on a new product at 37 Signals, I set up my mental model for success and I go, “Do you know what? If no one wants this, I will have had another opportunity to write beautiful Ruby code to explore greenfield domain, to learn something new, to build a system I want, even if no one else wants it.” What a blessing, what a privilege. If a bunch of people want it, that’s great. We can pay some salaries, we can keep the business running, and if it’s a blowaway success, wonderful. I get to impact a bunch of people.
Vibe coding
Lex Fridman
I think one of the big open questions to me is how far you can get with vibe coding, whether an approach for a young developer to invest most of the time into vibe coding or into writing code from scratch. So vibe coding, meaning I’m leaning into the meme a little bit, but the vibe coding, meaning you generate code, you have this idea of a thing you want to create, you generate the code and then you fix it with both natural language to the prompts and manually. You learn enough to manually fix it. So that’s the learning process. How you fix code that’s generated or you write code from scratch and have the LMS kind of tab, tab, tab, tab, add extra code, like which part do you lean on? I think to be safe, you should find the beauty and the artistry and skill in both, right? From scratch, so there should be some percent of your time just writing from scratch and some percent vibe coding.
I think one of the big open questions to me is how far you can get with vibe coding, whether an approach for a young developer to invest most of the time into vibe coding or into writing code from scratch. So vibe coding, meaning I’m leaning into the meme a little bit, but the vibe coding, meaning you generate code, you have this idea of a thing you want to create, you generate the code and then you fix it with both natural language to the prompts and manually. You learn enough to manually fix it. So that’s the learning process. How you fix code that’s generated or you write code from scratch and have the LMS kind of tab, tab, tab, tab, add extra code, like which part do you lean on? I think to be safe, you should find the beauty and the artistry and skill in both, right? From scratch, so there should be some percent of your time just writing from scratch and some percent vibe coding.
DHH
There should be more of the time writing from scratch if you are interested in learning how to program. Unfortunately, you’re not going to get fit by watching fitness videos. You’re not going to learn how to play the guitar by watching YouTube guitar videos. You have to actually play yourself. You have to do the sit-ups. Programming, understanding, learning almost anything requires you to do. Humans are not built to absorb information in a way that transforms into skills by just watching others from afar. Now, ironically, it seems AI is actually quite good at that, but humans are not. If you want to learn how to become a competent programmer, you have to program. It’s really not that difficult to understand. Now, I understand the temptation and the temptation is there because vibe coding can produce things perhaps in this moment, especially in new domain, you’re not familiar with tools you don’t know perfectly well that’s better than what you could do or that you would take much longer to get at, but you’re not going to learn anything.
There should be more of the time writing from scratch if you are interested in learning how to program. Unfortunately, you’re not going to get fit by watching fitness videos. You’re not going to learn how to play the guitar by watching YouTube guitar videos. You have to actually play yourself. You have to do the sit-ups. Programming, understanding, learning almost anything requires you to do. Humans are not built to absorb information in a way that transforms into skills by just watching others from afar. Now, ironically, it seems AI is actually quite good at that, but humans are not. If you want to learn how to become a competent programmer, you have to program. It’s really not that difficult to understand. Now, I understand the temptation and the temptation is there because vibe coding can produce things perhaps in this moment, especially in new domain, you’re not familiar with tools you don’t know perfectly well that’s better than what you could do or that you would take much longer to get at, but you’re not going to learn anything.
You’re going to learn in this superficial way that feels like learning but is completely empty calories, and secondly, if you can just vibe code it, you’re not a programmer. Then anyone could do it, which may be wonderful. That’s essentially what happened with the Access database. That’s what happened with Excel. It took the capacity of accountants to become software developers because the tools became so accessible to them that they could build a model for how the business was going to do next week that required a programmer prior to Excel. Now, it didn’t because they could do it themselves by coding enables non-programmers to explore their ideas in a way that I find absolutely wonderful, but it doesn’t make you a programmer.
Lex Fridman
I agree with you, but I want to allow for room for both of us be wrong. For example, there could be vibe coding could actually be a skill that if you train it and by vibe coding, let’s include the step of correction, the iterative correction, it’s possible if you get really good at that, that you’re outperforming the people that write from scratch that you can come up with truly innovative things, especially at this moment in history while the LLMs are a little bit too dumb to create super novel things and a complete product, but they’re starting to creep close to that, so if you are investing time now into becoming a really good vibe coder, maybe this is the right thing to do. If it’s indeed a skill, we kind of meme about vibe coding, like sitting back and it’s in the name, but if you treat it seriously, a competitive vibe coder and get good at riding the wave of AI and get good at the skill of editing code versus writing code from scratch, it’s possible that you can actually get farther in the long term.
I agree with you, but I want to allow for room for both of us be wrong. For example, there could be vibe coding could actually be a skill that if you train it and by vibe coding, let’s include the step of correction, the iterative correction, it’s possible if you get really good at that, that you’re outperforming the people that write from scratch that you can come up with truly innovative things, especially at this moment in history while the LLMs are a little bit too dumb to create super novel things and a complete product, but they’re starting to creep close to that, so if you are investing time now into becoming a really good vibe coder, maybe this is the right thing to do. If it’s indeed a skill, we kind of meme about vibe coding, like sitting back and it’s in the name, but if you treat it seriously, a competitive vibe coder and get good at riding the wave of AI and get good at the skill of editing code versus writing code from scratch, it’s possible that you can actually get farther in the long term.
Maybe editing is a fundamentally different task than writing from scratch if you take that seriously as a skill that you develop. I see. To me, that’s an open question. I just think I personally, now you’re on another level, but just personally, I’m not as good at editing the code that I didn’t write. That’s a different-
DHH
No one is.
No one is.
Lex Fridman
No one is of this generation, but maybe that’s a skill. Maybe if you get on the same page as the AI, because there’s a consistency to the AI. It’s like it really is a pair of programmers with a consistent style and structure and so on. Plus, with your own prompting, you can control the kind of code you write. I mean, it could legitimately be a skill.
No one is of this generation, but maybe that’s a skill. Maybe if you get on the same page as the AI, because there’s a consistency to the AI. It’s like it really is a pair of programmers with a consistent style and structure and so on. Plus, with your own prompting, you can control the kind of code you write. I mean, it could legitimately be a skill.
DHH
That’s the dream of the prompt engineer. I think it’s complete pipe dream. I don’t think editors exist that aren’t good at writing. I’ve written a number of books. I’ve had a number of professional editors. Not all of them wrote their own great books, but all of them were great writers in some regard. You cannot give someone pointers if you don’t know how to do it. It’s very difficult for an editor to be able to spot what’s wrong with a problem if the data couldn’t make the solution themselves. The capacity to be a good editor is the reward you get from being a good doer. You have to be a doer first. Now, that’s not the same as saying that vibe coding, prompt engineering won’t be able to produce fully formed amazing systems even shortly. I think that’s entirely possible, but then there’s no skill left, which maybe is the greatest payoff at all.
That’s the dream of the prompt engineer. I think it’s complete pipe dream. I don’t think editors exist that aren’t good at writing. I’ve written a number of books. I’ve had a number of professional editors. Not all of them wrote their own great books, but all of them were great writers in some regard. You cannot give someone pointers if you don’t know how to do it. It’s very difficult for an editor to be able to spot what’s wrong with a problem if the data couldn’t make the solution themselves. The capacity to be a good editor is the reward you get from being a good doer. You have to be a doer first. Now, that’s not the same as saying that vibe coding, prompt engineering won’t be able to produce fully formed amazing systems even shortly. I think that’s entirely possible, but then there’s no skill left, which maybe is the greatest payoff at all.
Wasn’t that the whole promise of AI anyway, that it was just all natural language that even my clumsy way of formulating a question could result in a beautiful succinct answer? That actually to me is a much more appealing vision that there’s going to be these special prompt engineering wizards who know how to tickle the AI just right to produce what they want. The beauty of AI is to think that someone who doesn’t know the first thing about how AI actually works is able to formulate their idea and their aspirations for what they want, and the AI could somehow take that messy clump of ideas and produce something that someone wants.
That’s actually what programming has always been. There’s very often been people who didn’t know how to program, who wanted programs, who then hired programmers, who gave them messy descriptions of what they wanted, and then when the programmers delivered that back said, “Oh, no, actually that’s not what I meant. I want else.” AI may be able to provide that cycle if that happens to the fullest extent of it, yeah, there’s not going to be as many programmers around, but hopefully presumably someone still, at least for the foreseeable future, have to understand whether what the AI is producing actually works or not.
Lex Fridman
As an interesting case study, maybe a thought experiment, if I wanted to vibe code Basecamp or hey, some of the products you’ve built, what would be the bottlenecks? Where would I fail along the way?
As an interesting case study, maybe a thought experiment, if I wanted to vibe code Basecamp or hey, some of the products you’ve built, what would be the bottlenecks? Where would I fail along the way?
DHH
What I’ve seen when I’ve been trying to do this, trying to use vibe coding to build something real is you actually fail really early. The vibe coding is able to build a veneer at the current present moment of something that looks like it works, but it’s flawed in all sorts of ways. There are the obvious ways, the meme ways that it’s leaking all your API keys, it’s storing your password in plain text. I think that’s ultimately solvable. It’s going to figure that out, or at least it’s going to get better at that, but its capacity to get lost in its own Labyrinth is very great right now. You let it code something and then you want to change something and it becomes a game of Whack-A-Mole real quick.
What I’ve seen when I’ve been trying to do this, trying to use vibe coding to build something real is you actually fail really early. The vibe coding is able to build a veneer at the current present moment of something that looks like it works, but it’s flawed in all sorts of ways. There are the obvious ways, the meme ways that it’s leaking all your API keys, it’s storing your password in plain text. I think that’s ultimately solvable. It’s going to figure that out, or at least it’s going to get better at that, but its capacity to get lost in its own Labyrinth is very great right now. You let it code something and then you want to change something and it becomes a game of Whack-A-Mole real quick.
Pieter Levels who’ve been doing this wonderful flight simulator was talking to that where at a certain scale the thing just keeps biting its own tail. You want to fix something and it breaks five other things, which I think is actually uniquely human because that’s how most bad programmers are at a certain level of complexity with the domain. They can’t fix one thing without breaking three other things, so in that way I’m actually in some way it’s almost a positive signal for that. The AI is going to figure this out because it’s done an extremely human trajectory right now. The kind of mistakes it’s making are the kind of mistakes that junior programmers make all the time.
Rails manifesto: Principles of a great programming language
Lex Fridman
Yeah. Can we zoom out and look at the vision, the manifesto, the doctrine of Rails? What are some of the things that make a programming language a framework? Great, especially for web development, so we talked about happiness.
Yeah. Can we zoom out and look at the vision, the manifesto, the doctrine of Rails? What are some of the things that make a programming language a framework? Great, especially for web development, so we talked about happiness.
DHH
Yes.
Yes.
Lex Fridman
The underlying objective of Ruby. What else?
The underlying objective of Ruby. What else?
DHH
So you’re looking at the nine points I wrote out in I think 2012 and first, before we dive into them, I want to say the reason I wrote it down is that if you want a community to endure, you have to record its values and you have to record its practices. If you don’t, eventually you’re going to get enough new people come in who have their own ideas of where this thing should go, and if we don’t have a guiding light helping us to make decisions, we’re going to start flailing. We’re going to start actually falling apart. I think this is one of the key reasons that institutions of all kinds start falling apart. We forget why Chesterton’s fence is there. We just go like, why is that fence there? Let’s yank it out. Oh, it was to keep the wolves out. Now we’re all dead.
So you’re looking at the nine points I wrote out in I think 2012 and first, before we dive into them, I want to say the reason I wrote it down is that if you want a community to endure, you have to record its values and you have to record its practices. If you don’t, eventually you’re going to get enough new people come in who have their own ideas of where this thing should go, and if we don’t have a guiding light helping us to make decisions, we’re going to start flailing. We’re going to start actually falling apart. I think this is one of the key reasons that institutions of all kinds start falling apart. We forget why Chesterton’s fence is there. We just go like, why is that fence there? Let’s yank it out. Oh, it was to keep the wolves out. Now we’re all dead.
Oops. So I wanted to write these things down and if we just take them quick one by one, you talked about optimizing for programmer happiness. I put that at number one in homage of Matz, and that’s a lot about accepting that there is occasionally a trade-off between writing beautiful code and other things we want out of systems. There could be a runtime trade-off. There can be a performance trade-off, but we’re going to do it nonetheless. We’re also going to allow ambiguity in a way that many programmers by default are uncomfortable with. I give the example actually here of in the interactive Ruby Shell where you can play with the language or even interact with your domain model. You can quit it in two ways, at least that I found. You can write exit. Boom, you’re out of the program. You can write quit. Boom, you’re out of the program.
They do the same thing. We just wrote both exit or the people who built that wrote both exit and quit because they knew humans were likely to pick one or the other. Python is the perfect contrast to this. In the Python interactive protocol, if you write exit, it won’t exit. It’ll give you a fucking lesson. It’ll basically tell you to read the fucking manual. It says, “Use exit() or Ctrl+D i.e. end of file to exit.” I’m like one is very human and another is very engineer, and I mean that both of them in the best possible way. Python is pedantic. Python’s the value from the start stated is that there should be preferably one and only one way to do a certain thing. Ruby is the complete opposite. No, we want the full expression that fits different human brains such that it seems like the language is guessing just what they want.
Lex Fridman
And part of that is also you described the principle of the least surprise, which is a difficult thing to engineer a language because it’s a subjective thing.
And part of that is also you described the principle of the least surprise, which is a difficult thing to engineer a language because it’s a subjective thing.
DHH
Which is why you can’t do it in one way, which is why I used the example of both exit and quit. The principle of least surprise for some people would be like, “Oh, exit. That’s how I get out of the prompt. For other people, it would be quit.” Why don’t we just do both?
Which is why you can’t do it in one way, which is why I used the example of both exit and quit. The principle of least surprise for some people would be like, “Oh, exit. That’s how I get out of the prompt. For other people, it would be quit.” Why don’t we just do both?
Lex Fridman
Okay, so what’s the convention over configuration? That’s a big one.
Okay, so what’s the convention over configuration? That’s a big one.
DHH
That’s a big one. That’s a huge one. And it was born out of a frustration I had in the early days with especially Java frameworks where when you were setting up a web application framework for Java back in the day, it was not uncommon to literally write right hundreds if not thousands of lines of XML configuration files. Oh, I need this. I want the database to use the foreign keys as post underscore ID. No, no, no. I want it as post capital ID. Oh, no, no, no. You have to do a capital PID. There are all these ways where you can configure how foreign relation keys should work in a database and none of them matter. We just need to pick one and then that’s fine, and if pick one and we can depend on it, it becomes a convention. If it’s a convention, we don’t have to configure it if we don’t have to configure it, you can get started with you actually care about much quicker.
That’s a big one. That’s a huge one. And it was born out of a frustration I had in the early days with especially Java frameworks where when you were setting up a web application framework for Java back in the day, it was not uncommon to literally write right hundreds if not thousands of lines of XML configuration files. Oh, I need this. I want the database to use the foreign keys as post underscore ID. No, no, no. I want it as post capital ID. Oh, no, no, no. You have to do a capital PID. There are all these ways where you can configure how foreign relation keys should work in a database and none of them matter. We just need to pick one and then that’s fine, and if pick one and we can depend on it, it becomes a convention. If it’s a convention, we don’t have to configure it if we don’t have to configure it, you can get started with you actually care about much quicker.
Convention of a configuration is essentially to take that idea that the system should come pre-assembled. I’m not just handing you a box of fucking Legos and asking you to build the Millennium Falcon. I’m giving you a finished toy. You can edit, you can change it. It’s still build out a Legos. You can still take some pieces off and put in some other pieces, but I’m giving you the final product and this cuts against the grain of what most programmers love. They love a box of Legos. They love to put everything together from scratch. They love to make all these detailed little decisions that just don’t matter at all, and I want to elevate that up such that, hey, I’m not trying to take the decisions away from you. I just want you to focus on decisions that actually matter that you truly care about. No one cares about whether it’s post underscore ID or post ID or PID.
Lex Fridman
Yeah, great defaults.
Yeah, great defaults.
DHH
Yes.
Yes.
Lex Fridman
It’s just a wonderful thing. You have all these aspirations, they’re going to do some kind of custom, most beautiful Legos castle that nobody’s ever built from these pieces, but in reality to be productive in most situations, you just need to build the basic thing and then on top of that is where your creativity comes.
It’s just a wonderful thing. You have all these aspirations, they’re going to do some kind of custom, most beautiful Legos castle that nobody’s ever built from these pieces, but in reality to be productive in most situations, you just need to build the basic thing and then on top of that is where your creativity comes.
DHH
Absolutely, and I think this is one of those, part of the doctrine that a lot of programmers who get to use Ruby on Rails begrudgingly will acknowledge it’s a nice thing. Even if they don’t really like it’s hard to beat the attraction to building with Legos from scratch out of programmers. That’s just what we like. This is why we’re programmers in the first place because we’d like to put these little pieces together, but we can direct that instinct towards a more productive end of the stack.
Absolutely, and I think this is one of those, part of the doctrine that a lot of programmers who get to use Ruby on Rails begrudgingly will acknowledge it’s a nice thing. Even if they don’t really like it’s hard to beat the attraction to building with Legos from scratch out of programmers. That’s just what we like. This is why we’re programmers in the first place because we’d like to put these little pieces together, but we can direct that instinct towards a more productive end of the stack.
Lex Fridman
Okay. What are some of the other ones?
Okay. What are some of the other ones?
DHH
The menu is omakase. It actually comes out of the same principle that great defaults really matter. If you look at everything that’s wrong with the JavaScript ecosystem right now, for example, it is that no one is in charge of the menu. There are a billion different dishes and you can configure just your tailored specific configuration of it, but no one done the work to make sure it all fits together, so you have all these unique problems in the JavaScript ecosystem, for example, there’s probably 25 major ways of just doing the controller layer and then as many of how to talk to the database, so you get this permutation of N times N times N of no one is using the same thing.
The menu is omakase. It actually comes out of the same principle that great defaults really matter. If you look at everything that’s wrong with the JavaScript ecosystem right now, for example, it is that no one is in charge of the menu. There are a billion different dishes and you can configure just your tailored specific configuration of it, but no one done the work to make sure it all fits together, so you have all these unique problems in the JavaScript ecosystem, for example, there’s probably 25 major ways of just doing the controller layer and then as many of how to talk to the database, so you get this permutation of N times N times N of no one is using the same thing.
And if they are using the same thing, they’re only using the same thing for about five minutes, so we have no retained wisdom. We build up no durable skills. Rails goes the complete opposite way of saying do you know what? Rails is not just a web framework. It is a complete attempt at solving the web problem. It’s complete attempt at solving everything you need to build a great web application, and every piece of that puzzle should ideally be in the box pre-configured, pre-assembled.
If you want to change some of those pieces later, that’s wonderful, but on day one you’ll get a full menu designed by a chef who really cared about every piece of the ingredient and you’re going to enjoy it, and that’s again one of those things where many programmers think like I know better and they do in some hyperlocal sense of it. Every programmer knows better. This is what Ruby is built on, that every programmer knows better in their specific situation. Maybe they can do something dangerous, maybe they think they know better and then they blow their foot off and then they truly will know better because they’ve blown their foot off once and won’t do it again. But the menu on omakase is that.
Lex Fridman
So you in general see the value in the monolith?
So you in general see the value in the monolith?
DHH
Yes. The integrated system.
Yes. The integrated system.
Lex Fridman
Integrated-
Integrated-
DHH
That someone thought of the whole problem. This is one of the reasons why I’ve been on a crusade against microservices since the term was coined. Microservices was born out of essentially a good idea. What do you do at Netflix scale when you have thousands of engineers working on millions of lines of code? No one can keep that entire system in their head at one time. You have to break it down. Microservices can be a reasonable way to do that when you’re at Netflix scale. When you apply that pattern to a team of 20 programmers working on a code base of half a million lines of code, you’re an idiot. You just don’t need to turn method invocations into network calls. It is the first rule of distributed programming. Do not distribute your programming. It makes everything harder. All the failure conditions you have to consider as a programmer just becomes infinitely harder when there’s a network cable involved, so I hate the idea of premature decomposition and microservices is exactly that.
That someone thought of the whole problem. This is one of the reasons why I’ve been on a crusade against microservices since the term was coined. Microservices was born out of essentially a good idea. What do you do at Netflix scale when you have thousands of engineers working on millions of lines of code? No one can keep that entire system in their head at one time. You have to break it down. Microservices can be a reasonable way to do that when you’re at Netflix scale. When you apply that pattern to a team of 20 programmers working on a code base of half a million lines of code, you’re an idiot. You just don’t need to turn method invocations into network calls. It is the first rule of distributed programming. Do not distribute your programming. It makes everything harder. All the failure conditions you have to consider as a programmer just becomes infinitely harder when there’s a network cable involved, so I hate the idea of premature decomposition and microservices is exactly that.
The monolith says let’s try to focus on building a whole system that a single human can actually understand and push that paradigm as far as possible by compressing all the concepts such that more of it will fit into memory of a single operating human, and then we can have a system where I can actually understand all of Basecamp. I can actually understand all of HEY. Both of those systems are just over a hundred thousand lines of code. I’ve seen people do this that maybe twice, maybe three times that scale and then it starts breaking down. Once you get north of certainly half a million lines of code, no individual human can do it, and that’s when you get into maybe some degree of microservices can make sense.
Lex Fridman
Basecamp and HEY are both a hundred thousand?
Basecamp and HEY are both a hundred thousand?
DHH
A hundred thousand lines of code.
A hundred thousand lines of code.
Lex Fridman
Wow. It’s small.
Wow. It’s small.
DHH
It’s considering the fact that Basecamp I think has something like 420 screens, different ways and configurations.
It’s considering the fact that Basecamp I think has something like 420 screens, different ways and configurations.
Lex Fridman
Do you include the front end in that?
Do you include the front end in that?
DHH
No, that’s the Ruby code. Well, it’s front end in the sense that some of that Ruby code is beneficial to the front end, but it’s not JavaScript for example. Now, the other thing we might talk about later is we write very little JavaScript actually for all of our applications. HEY, which is a Gmail competitor. Gmail ships I think 28 of uncompressed JavaScript. If you compress it, I think it’s about six megabytes, 28 megabytes. Think about how many lines of code that is.
No, that’s the Ruby code. Well, it’s front end in the sense that some of that Ruby code is beneficial to the front end, but it’s not JavaScript for example. Now, the other thing we might talk about later is we write very little JavaScript actually for all of our applications. HEY, which is a Gmail competitor. Gmail ships I think 28 of uncompressed JavaScript. If you compress it, I think it’s about six megabytes, 28 megabytes. Think about how many lines of code that is.
When HEY launched, we shipped 40 kilobytes. It’s trying to solve the same problem. You can solve the email client problem with either 28 megabytes of uncompressed JavaScript or with 40 kilobytes if you do things differently, but that comes to the same problem essentially. This is why I have fiercely fought splitting front end and back end. Apart that in my opinion, this was one of the great crimes against web development that we are still atoning for that we separated and divided what was and should be a unified problem solving mechanism. When you are working both on front end and back end, you understand the whole system and you’re not going to get into these camps that decompose and eventually you end up with shit like GraphQL.
Lex Fridman
Okay. Let’s fly through the rest of the doctrine. No one paradigm.
Okay. Let’s fly through the rest of the doctrine. No one paradigm.
DHH
No one paradigm goes to the fact that Ruby is a fiercely object-oriented programming language at its core, but it’s also a functional programming language. This five times I told you about, you can essentially do these anonymous function calls and you can chain them together very much in the spirit of how true functional programming languages work, Ruby has even moved closer towards the functional programming and of the scale by making strings immutable. There are ideas from all different disciplines of an all different paradigms of software development that can fit together. Smalltalk, for example, was only object-oriented and that was just it. Ruby tries to be mainly object-oriented, but borrow a little bit of functional programming, a little bit of imperative programming, be able to do all of that. Rails tries to do the same thing. We’re not just going to pick one paradigm and run it through everything.
No one paradigm goes to the fact that Ruby is a fiercely object-oriented programming language at its core, but it’s also a functional programming language. This five times I told you about, you can essentially do these anonymous function calls and you can chain them together very much in the spirit of how true functional programming languages work, Ruby has even moved closer towards the functional programming and of the scale by making strings immutable. There are ideas from all different disciplines of an all different paradigms of software development that can fit together. Smalltalk, for example, was only object-oriented and that was just it. Ruby tries to be mainly object-oriented, but borrow a little bit of functional programming, a little bit of imperative programming, be able to do all of that. Rails tries to do the same thing. We’re not just going to pick one paradigm and run it through everything.
Object orientation is at the center of it, but it’s okay to invite all these other disciplines in. It’s okay to be inspired. It’s okay to remix it. I actually think one of the main benefits of Rails is that it’s a remix. I didn’t invent all these ideas. I didn’t come up with ActiveRecord. I didn’t come up with the MVC way of dividing an application. I took all the great ideas that I had learned and picked up from every different camp and I put it together. Not because there was going to be just one single overarching theory of everything, but I was going to have a cohesive unit that incorporated the best from everywhere.
Lex Fridman
Is that idea a bit at tension with the beauty of the monolith system?
Is that idea a bit at tension with the beauty of the monolith system?
DHH
I think the monolith can be thought of as quite roomy, quite as a big tent that the monolith needs actually to borrow a little bit of functional programming for the kinds of problems that that excels, that discipline excels its solving and that paradigm excels its solving. If you also want object orientation at its core, I actually think when I’ve looked at functional programming languages, there’s a lot to love and then I see some of the crazy contortions they have to go through when part of the problem they’re solving calls for mutating something and you go like, “Holy shit, this is a great paradigm from 90% of the problem, and then you’re twisting yourself completely out of shape when you try to solve the last 10.”
I think the monolith can be thought of as quite roomy, quite as a big tent that the monolith needs actually to borrow a little bit of functional programming for the kinds of problems that that excels, that discipline excels its solving and that paradigm excels its solving. If you also want object orientation at its core, I actually think when I’ve looked at functional programming languages, there’s a lot to love and then I see some of the crazy contortions they have to go through when part of the problem they’re solving calls for mutating something and you go like, “Holy shit, this is a great paradigm from 90% of the problem, and then you’re twisting yourself completely out of shape when you try to solve the last 10.”
Lex Fridman
Ooh, Exalt beautiful code is the next one.
Ooh, Exalt beautiful code is the next one.
DHH
We’ve talked about that at length and here’s a great example that really summarizes the main specific language quality of Ruby on Rails that you can make code actually pleasant to write and read, which is really funny to me because as we talked about when I started learning programming, it wasn’t even a consideration. I didn’t even know that that could be part of the premise, that that could be part of the solution that writing code could feel as good as writing a poem.
We’ve talked about that at length and here’s a great example that really summarizes the main specific language quality of Ruby on Rails that you can make code actually pleasant to write and read, which is really funny to me because as we talked about when I started learning programming, it wasn’t even a consideration. I didn’t even know that that could be part of the premise, that that could be part of the solution that writing code could feel as good as writing a poem.
Lex Fridman
Class project, application record belongs to account has many participants, class name person, validates presence of name.
Class project, application record belongs to account has many participants, class name person, validates presence of name.
DHH
See, you could read it out. You didn’t even change anything.
See, you could read it out. You didn’t even change anything.
Lex Fridman
Like a haiku or something.
Like a haiku or something.
DHH
Right. Isn’t that beautiful?
Right. Isn’t that beautiful?
Lex Fridman
Yeah, it’s nice. It’s really nice. There’s an intuitive nature to it. Okay, so I have specific questions there. I mean ActiveRecord, just to take that tangent, that has to be your favorite feature.
Yeah, it’s nice. It’s really nice. There’s an intuitive nature to it. Okay, so I have specific questions there. I mean ActiveRecord, just to take that tangent, that has to be your favorite feature.
DHH
It’s the crown jewel of Rails. It really is. It’s the defining characteristic of how to work with Ruby on Rails. And it’s born in an interesting level of controversy because it actually uses a pattern that had been described by Martin Fowler in the patterns of enterprise application architecture. One of the greatest books for anyone working on business systems and if you had not read it, you must pick it up immediately. Patterns of enterprise application architecture, I think it was published in 2001. It is one of the very few programming books that I have read many times over. It’s incredible in it. Martin describes a bunch of different patterns of how to build business systems essentially. An ActiveRecord is a little bit of a footnote in there. The pattern is literally called ActiveRecord. You can look it up. It’s called ActiveRecord. I wouldn’t even creative enough to come up a name of my own, but it allows the creation, the marriage of database and object orientation in a way that a lot of programmers find a little off-putting.
It’s the crown jewel of Rails. It really is. It’s the defining characteristic of how to work with Ruby on Rails. And it’s born in an interesting level of controversy because it actually uses a pattern that had been described by Martin Fowler in the patterns of enterprise application architecture. One of the greatest books for anyone working on business systems and if you had not read it, you must pick it up immediately. Patterns of enterprise application architecture, I think it was published in 2001. It is one of the very few programming books that I have read many times over. It’s incredible in it. Martin describes a bunch of different patterns of how to build business systems essentially. An ActiveRecord is a little bit of a footnote in there. The pattern is literally called ActiveRecord. You can look it up. It’s called ActiveRecord. I wouldn’t even creative enough to come up a name of my own, but it allows the creation, the marriage of database and object orientation in a way that a lot of programmers find a little off-putting.
They don’t actually want to pollute the beautiful object-oriented nature of that kind of programming with SQL. There was a rant by Uncle Bob the other day about how SQL is the worst thing ever. Okay, fine, whatever. I don’t care. This is practical. We are making crud applications. You’re taking things out of an HTML form and you’re sticking them into a database. It’s not more complicated than that. The more abstractions you put in between those two ends of the spectrum, the more you’re just fooling yourself. This is what we’re doing. We’re talking to SQL databases.
By the way, quick aside, SQL was one of those things that have endured the onslaught of NoSQL databases structured list data for a better part of a decade and still reign supreme. SQL was a good thing to invest your time in learning. Every program I’m working with the web should know SQL to a fair degree, even if they’re working with an ORM, an object relational mapper as ActiveRecord, you still need to understand SQL. What ActiveRecord does is not so much try to abstract the SQL away behind a different kind of paradigm. It’s just making it less cumbersome to write, making it more amenable to build domain models on top of other domain models in a way, since you don’t have to write every SQL statement by hand.
Lex Fridman
Let’s just say that ActiveRecord is an ORM, which is a layer that makes it intuitive and human interpretable to communicate with a database.
Let’s just say that ActiveRecord is an ORM, which is a layer that makes it intuitive and human interpretable to communicate with a database.
DHH
Even simpler than that. It turns tables into classes and rows into objects. I actually think SQL is very easy to understand most of it. You can write some SQL golf too, that’s very hard to understand, but SQL at its base and much of the criticism against SQL was it was written for human consumption. It’s actually quite verbose, especially if you’re doing things like inserts over and over again. It’s quite verbose. Insert into table, parentheses, enumerate every column you want to insert, values, parentheses.
Even simpler than that. It turns tables into classes and rows into objects. I actually think SQL is very easy to understand most of it. You can write some SQL golf too, that’s very hard to understand, but SQL at its base and much of the criticism against SQL was it was written for human consumption. It’s actually quite verbose, especially if you’re doing things like inserts over and over again. It’s quite verbose. Insert into table, parentheses, enumerate every column you want to insert, values, parentheses.
DHH
In every column you want to insert values, parentheses, every value that fits with that column, it gets tedious to write SQL by hand, but it’s actually very humanly readable. ActiveRecord just takes that tediousness away, it makes it possible to combine things in a way that a humanly describable language just doesn’t. It composes things into methods and you can combine these methods and you can build structures around them. I don’t dislike SQL, I just like a lot of things in programming, I try to get rid of them. SQL wasn’t really one of them, it was just a sense of, “I don’t want to write the same thing over and over again.” It was a, “Can we be a little more succinct? Can we match it just slightly better to the object orientation without trying to hide away the fact that we’re persisting these objects into a database?”
In every column you want to insert values, parentheses, every value that fits with that column, it gets tedious to write SQL by hand, but it’s actually very humanly readable. ActiveRecord just takes that tediousness away, it makes it possible to combine things in a way that a humanly describable language just doesn’t. It composes things into methods and you can combine these methods and you can build structures around them. I don’t dislike SQL, I just like a lot of things in programming, I try to get rid of them. SQL wasn’t really one of them, it was just a sense of, “I don’t want to write the same thing over and over again.” It was a, “Can we be a little more succinct? Can we match it just slightly better to the object orientation without trying to hide away the fact that we’re persisting these objects into a database?”
That’s where I think a lot of ORMs went wrong. They tried to live in the pure world of objects, never to consider that those objects had to be consistent into a SQL database, and then they came up with convoluted way of translating back and forth. ActiveRecord says, “You know what? Just accept it.” This record, this object is not going to get saved into some no-SQL database, it’s going to be saved into SQL database, so just structure the whole thing around that. It’s going to have attributes, those attributes are going to respond to columns in the database. It’s not more complicated than that stuff making it so.
Lex Fridman
Yeah, but I should say, I personally love SQL, because I’m an algorithms person, so I love optimization, I love to know how the databases actually work, so I can match the SQL queries and the design of the tables such that there is optimal… Squeeze the optimal performance out of the table. Okay. Based on the actual way that that table is used. I think that pushes to the point that there is value in understanding SQL. I wonder, because I started looking at ActiveRecord and it looks really awesome. Does that make you lazy? Not you, but a person that rolls in and starts using Rails, you can probably get away with never really learning SQL, right?
Yeah, but I should say, I personally love SQL, because I’m an algorithms person, so I love optimization, I love to know how the databases actually work, so I can match the SQL queries and the design of the tables such that there is optimal… Squeeze the optimal performance out of the table. Okay. Based on the actual way that that table is used. I think that pushes to the point that there is value in understanding SQL. I wonder, because I started looking at ActiveRecord and it looks really awesome. Does that make you lazy? Not you, but a person that rolls in and starts using Rails, you can probably get away with never really learning SQL, right?
DHH
As long as you want to stay at the entry level of competence. This is actually my overarching mission with Rails, is to lower the barrier of entry so far down that someone can start seeing stuff on their browser without basically understanding anything. They can run Rails, new blog, run a couple of generators. They have a whole system… They don’t understand anything, but it’s an invitation to learn more. Where I get fired up, and this ties back to the AI discussion, is when that’s turned into this meme that programmers no longer have to be competent. “The AI is going to figure it out, the generators is going to figure it out. I don’t need to know SQL, ActiveRecord is going to abstract it away from me.” No, no, no. Dude, hold up. The path here is competence. I’m trying to teach you things.
As long as you want to stay at the entry level of competence. This is actually my overarching mission with Rails, is to lower the barrier of entry so far down that someone can start seeing stuff on their browser without basically understanding anything. They can run Rails, new blog, run a couple of generators. They have a whole system… They don’t understand anything, but it’s an invitation to learn more. Where I get fired up, and this ties back to the AI discussion, is when that’s turned into this meme that programmers no longer have to be competent. “The AI is going to figure it out, the generators is going to figure it out. I don’t need to know SQL, ActiveRecord is going to abstract it away from me.” No, no, no. Dude, hold up. The path here is competence. I’m trying to teach you things.
I understand I can’t teach you everything in five minutes. No one who’s ever become good at anything worthwhile could be taught everything in five minutes. If you want to be a fully well-rounded application developer, that takes years, but you can actually become somewhat productive in a few days, you can have fun in a few days. For sure, you’re going to have fun in a few minutes, in a few hours, and over time, I can teach you a little more. ActiveRecord says like, “Yeah, yeah. All right, start here and then, next week, we’ll do a class on SQL.”
Lex Fridman
Actually, you have this beautiful expression that I love. That a great programming language, like Ruby, has a soft ramp, but the ramp goes to infinity.
Actually, you have this beautiful expression that I love. That a great programming language, like Ruby, has a soft ramp, but the ramp goes to infinity.
DHH
That’s exactly right.
That’s exactly right.
Lex Fridman
Yeah. It’s super accessible, super easy to get started-
Yeah. It’s super accessible, super easy to get started-
DHH
And it never stops.
And it never stops.
Lex Fridman
Yeah.
Yeah.
DHH
There’s always more to learn. This is one of the reasons I’m still having fun programming, that I’m still learning new things, I can still incorporate new things. The web is deep enough as a domain, you never going to learn all of it.
There’s always more to learn. This is one of the reasons I’m still having fun programming, that I’m still learning new things, I can still incorporate new things. The web is deep enough as a domain, you never going to learn all of it.
Lex Fridman
Provide sharp knives.
Provide sharp knives.
DHH
This is a good one, because another way of saying this… The opposite way of saying this, the Java way of saying is, “Do not provide foot guns,” right?
This is a good one, because another way of saying this… The opposite way of saying this, the Java way of saying is, “Do not provide foot guns,” right?
Lex Fridman
Yeah.
Yeah.
DHH
I don’t want to give you a sharp knife. You’re a child, you can’t handle a sharp knife. Here’s a dull butter knife, cut your damn steak, right? That’s a very frustrating experience. You want a sharp knife, even though you might be able to cut yourself. I trust humans in the same way that maths trust humans. Maybe you cut off a finger. All right, you’re not going to do that again. Thankfully, if it was a virtual finger, it’s going to grow back out. Your competence is going to grow, it’s more fun to work with sharp tools.
I don’t want to give you a sharp knife. You’re a child, you can’t handle a sharp knife. Here’s a dull butter knife, cut your damn steak, right? That’s a very frustrating experience. You want a sharp knife, even though you might be able to cut yourself. I trust humans in the same way that maths trust humans. Maybe you cut off a finger. All right, you’re not going to do that again. Thankfully, if it was a virtual finger, it’s going to grow back out. Your competence is going to grow, it’s more fun to work with sharp tools.
Lex Fridman
That actually contributes to the ramp that goes to infinity.
That actually contributes to the ramp that goes to infinity.
DHH
Yes, to the learning.
Yes, to the learning.
Lex Fridman
Value-integrated systems.
Value-integrated systems.
DHH
We hit on that one. Rails is trying to solve the whole problem of the web, not just one little component. It’s not leaving you a bunch of pieces you have to put together yourself.
We hit on that one. Rails is trying to solve the whole problem of the web, not just one little component. It’s not leaving you a bunch of pieces you have to put together yourself.
Lex Fridman
Progress over stability.
Progress over stability.
DHH
You know what? If there’s one that’s dated, it’s probably that one. At this stage, Rails has been incredibly stable over many, many generations. The last major release, Rails 8, was basically a no-op upgrade for anyone running Rails 7. Rails 7 was almost a no-op upgrade for anyone running Rails 6. I used to think it required more churn to get progress, to stay on the leading edge of new stuff, and I wrote this before I experienced the indignity of the 2010s in the JavaScript community, where it seemed like stability was not just unvalued, it was actually despised. The churn in and of itself was a value we should be pursuing. If you were still working with the same framework three months later, you were an idiot, and I saw that and I actually recoiled. If I was going to write the doctrine today, I’d write that differently. I wouldn’t say, “Progress over stability.”
You know what? If there’s one that’s dated, it’s probably that one. At this stage, Rails has been incredibly stable over many, many generations. The last major release, Rails 8, was basically a no-op upgrade for anyone running Rails 7. Rails 7 was almost a no-op upgrade for anyone running Rails 6. I used to think it required more churn to get progress, to stay on the leading edge of new stuff, and I wrote this before I experienced the indignity of the 2010s in the JavaScript community, where it seemed like stability was not just unvalued, it was actually despised. The churn in and of itself was a value we should be pursuing. If you were still working with the same framework three months later, you were an idiot, and I saw that and I actually recoiled. If I was going to write the doctrine today, I’d write that differently. I wouldn’t say, “Progress over stability.”
Lex Fridman
Maybe it’d be a function of the age of the programming language also.
Maybe it’d be a function of the age of the programming language also.
DHH
Maybe or a deeper understanding of the problem. I think part of what’s so fascinating about technology is that we have this perception that everything constantly moves so fast. No, it doesn’t. Everything moves at a glacial pace. There is occasionally a paradigm shift, like what’s happening with AI right now, like what happened with the introduction of the iPhone in 2007, like what happened with the internet in ’95. That’s basically the total sum of my career, three things changed. Everything else in between was incremental small improvements. You can recognize a Rails application written in 2003. I know, because the Basecamp I wrote back then is still operating, making millions of dollars in ARR, servicing customers on the initial version that was launched back then, and it looks like the Rails code, if I squint a little, that I would write today. Most things don’t change, even in computing, and that’s actually a good thing. We saw with the JavaScript ecosystem, what happens when everyone gets just mad about constant churn. Things don’t change that often.
Maybe or a deeper understanding of the problem. I think part of what’s so fascinating about technology is that we have this perception that everything constantly moves so fast. No, it doesn’t. Everything moves at a glacial pace. There is occasionally a paradigm shift, like what’s happening with AI right now, like what happened with the introduction of the iPhone in 2007, like what happened with the internet in ’95. That’s basically the total sum of my career, three things changed. Everything else in between was incremental small improvements. You can recognize a Rails application written in 2003. I know, because the Basecamp I wrote back then is still operating, making millions of dollars in ARR, servicing customers on the initial version that was launched back then, and it looks like the Rails code, if I squint a little, that I would write today. Most things don’t change, even in computing, and that’s actually a good thing. We saw with the JavaScript ecosystem, what happens when everyone gets just mad about constant churn. Things don’t change that often.
Lex Fridman
By the way, on that small tangent, you just visibly verbally changed your mind with the you of 15 years ago?
By the way, on that small tangent, you just visibly verbally changed your mind with the you of 15 years ago?
DHH
Yes.
Yes.
Why managers are useless
Lex Fridman
That’s interesting. Have you noticed yourself changing your mind quite a bit over the years?
That’s interesting. Have you noticed yourself changing your mind quite a bit over the years?
DHH
I would say, “Oh, yes,” and then also, “Oh, no,” in the sense that there are absolutely fundamental things both about human nature, about institutions, about programming, about business that I’ve changed my mind on, and then I’ve also had experiences that are almost even more interesting, where I thought I had changed my mind and I tried it a new way, realized why I had the original opinion in the first place, and then gone back to it. It happens both ways. An example of the later part, for example, was managers at 37 Signals. For the longest time, I would rail against engineering managers as an unnecessary burden on a small or even medium-sized company, and at one point, I actually started doubting myself a little bit. I started thinking like, “Do you know what? Maybe all programmers do need a one-on-one therapy session every week with their engineering manager to be a whole individual.”
I would say, “Oh, yes,” and then also, “Oh, no,” in the sense that there are absolutely fundamental things both about human nature, about institutions, about programming, about business that I’ve changed my mind on, and then I’ve also had experiences that are almost even more interesting, where I thought I had changed my mind and I tried it a new way, realized why I had the original opinion in the first place, and then gone back to it. It happens both ways. An example of the later part, for example, was managers at 37 Signals. For the longest time, I would rail against engineering managers as an unnecessary burden on a small or even medium-sized company, and at one point, I actually started doubting myself a little bit. I started thinking like, “Do you know what? Maybe all programmers do need a one-on-one therapy session every week with their engineering manager to be a whole individual.”
We tried that for a couple of years where we hired some very good engineering managers who did engineering management the way you’re supposed to do it, the way it’s done all over the place, and after that, I thought, “No. No, I was right. This was correct, we should not have had managers.” Not every programmer needs a therapy session with an engineering manager every week, we don’t need these endlessly scheduled huddles, we don’t need all these meetings. We just need to leave people the hell alone to work on problems that they enjoy for long stretches of uninterrupted time. That is where happiness is found, that’s where productivity is found, and if you can get away with it, you absolutely should. Engineering management is a necessary evil when that breaks down.
Lex Fridman
What’s the case for managers then?
What’s the case for managers then?
DHH
The case for managers is that, if you do have a lot of people, there’s a bunch of work that just crops up. The one-on-one is one example, that programmers need someone to check in with, there’s another idealized version that someone needs to guide the career of juniors, for example, to give them redirecting feedback, and all this other stuff. It’s not that, in the abstract, I don’t agree with some of those things, but in practice, I’ve found that they often create more problems that they solve. A good example here is, can you get feedback from someone who’s not better at your job than you are? You can get some feedback, you can get feedback on how you show up at work. Are you being courteous to others? Are you being a good communicator? Okay, yes, but you can’t get feedback on your work, and that’s more important.
The case for managers is that, if you do have a lot of people, there’s a bunch of work that just crops up. The one-on-one is one example, that programmers need someone to check in with, there’s another idealized version that someone needs to guide the career of juniors, for example, to give them redirecting feedback, and all this other stuff. It’s not that, in the abstract, I don’t agree with some of those things, but in practice, I’ve found that they often create more problems that they solve. A good example here is, can you get feedback from someone who’s not better at your job than you are? You can get some feedback, you can get feedback on how you show up at work. Are you being courteous to others? Are you being a good communicator? Okay, yes, but you can’t get feedback on your work, and that’s more important.
It’s more important that you work under and with someone who’s better at your job than you are if you wish to progress in your career, and every single programmer I’ve ever worked with was far more interested in progressing in their career on that metric, getting better at their craft, than they were in picking up pointers that a middle manager could teach them. That’s not saying that there isn’t value in it, it’s not saying there isn’t value in being a better person or a better communicator. Of course, there is all those things, but if I have to choose one or the other, I value competence higher. Again, I cavit this a million times, because I know what people sometimes hear, they hear the genius asshole is just fine, and that’s great and you should excuse all sorts of malicious behavior if someone’s just really good at what they do.
I’m not saying that at all. What I am saying is that the history of competence is a history of learning from people who are better than you, and that relationship should take precedence over all else. That relationship gets put aside a bit when engineering manager’s introduced. Now, the funny thing is this conversation ties back to the earlier things we were talking about. Most engineering managers are actually former programmers. They at least know program to some extent, but what I’ve seen time and again is that they lose their touch, their feel with it very, very quickly and turn into pointy-haired bosses very, very quickly who are really good at checking for updates, “Just seeing where we are on project A here if you need anything,” or, “We’re really to deliver?” Okay, yes. Also, no. Shut up, leave me the hell alone. Let me program and then I’ll come up for air.
I’ll talk with other programmers who I can spar with, that we can learn something with, where I can turn the problems over with and we can move forward. If you look back on the history of computer industry, all the great innovation that’s happened, it’s all been done by tiny teams with no engineering managers. Just full of highly-skilled individuals. You’ve had John Carmack on here. I used to look up to its software so much, not just because I love Quake, not just because I loved what they were doing, but because he shared a bit about how the company worked. There were no managers or maybe they had one business guy doing some business stuff, but that was just to get paid. Everything else was basically just designers and programmers, and there were about eight of them and they created goddamn Quake 2. Why do you need all these people again?
Why do you need all these managers again? I think, again, at a certain scale, it does break down. It’s hard to just have 100,000 programmers running around wild without any product mommies or daddies telling them what to do. I understand that. Then even as I say that, I also don’t understand it, because if you look at something like Gmail for example, that was like a side project done by Buchheit at Google at the time. So much of the enduring long-term value of even all these huge companies were created by people who didn’t have a god damn manager, and that’s not an accident. That’s a direct cause and effect. I’ve turned in some way even more militant over the years against this notion of management, at least for myself and knowing who I am and how I want to work, because the other part of this is I don’t want to be a manager, and maybe this is just me projecting the fact that I’m an introvert who don’t like to talk to people on one-on-one calls every week, but it also encapsulates how I was able to progress my career.
I did not really go to the next level with Ruby or otherwise until I had a door I could close and no one could bother me for six hours straight.
Lex Fridman
In companies probably one of the reasons is it’s very easy to hire managers, and managers also delegate responsibility from you, so if you just have a bunch of programmers running around, your response… It’s work, it’s intellectual work to have to deal with the first principles of every problem that’s going on.
In companies probably one of the reasons is it’s very easy to hire managers, and managers also delegate responsibility from you, so if you just have a bunch of programmers running around, your response… It’s work, it’s intellectual work to have to deal with the first principles of every problem that’s going on.
DHH
Yep.
Yep.
Lex Fridman
Manager’s like, “You can relax, all will be taken care of,” but they then hire their own managers, and it just multiplies and multiplies and multiplies. I would love it if some of the great companies we have in the United States, if there was an extra side branch that we could always run… Maybe physicists can come up how to split the simulation to where it just all the managers are removed. Just in that branch, just the PR and the comms people also, and even the lawyers. Just the engineers and let’s just see, and then we merge it back.
Manager’s like, “You can relax, all will be taken care of,” but they then hire their own managers, and it just multiplies and multiplies and multiplies. I would love it if some of the great companies we have in the United States, if there was an extra side branch that we could always run… Maybe physicists can come up how to split the simulation to where it just all the managers are removed. Just in that branch, just the PR and the comms people also, and even the lawyers. Just the engineers and let’s just see, and then we merge it back.
DHH
I have a sense you run that branch at 37 singles for 20 years. I’ve experimented with forking back on the other side, I’ve experimented with having a full-time lawyer on staff, I’ve experimented with having engineering managers, and I can tell you life is much better at 50, 60 people when none of those individuals or none of those roles… It’s never about the individuals, it’s about the roles. None of those roles are in your organization full-time. Occasionally, you need a manager. Occasionally, you need a lawyer. I can play the role of manager occasionally, fine, and then I can set it back down to zero. It’s almost like a cloud surface. I want a manager service I can call on for seven hours this week and then I want to take it down to zero for the next three months.
I have a sense you run that branch at 37 singles for 20 years. I’ve experimented with forking back on the other side, I’ve experimented with having a full-time lawyer on staff, I’ve experimented with having engineering managers, and I can tell you life is much better at 50, 60 people when none of those individuals or none of those roles… It’s never about the individuals, it’s about the roles. None of those roles are in your organization full-time. Occasionally, you need a manager. Occasionally, you need a lawyer. I can play the role of manager occasionally, fine, and then I can set it back down to zero. It’s almost like a cloud surface. I want a manager service I can call on for seven hours this week and then I want to take it down to zero for the next three months.
Lex Fridman
Yeah, I read, I don’t know if this is still the case, that Basecamp is an LLC and doesn’t have a CFO, like a full-time accountant. Is that [inaudible 02:31:10].
Yeah, I read, I don’t know if this is still the case, that Basecamp is an LLC and doesn’t have a CFO, like a full-time accountant. Is that [inaudible 02:31:10].
DHH
These days, we do have a head of finance. We did not for the first 19 years of life, I think. We got away with basically just having an accountant do our books in the same way you would do a small ice cream shop, except we would, over time, have done hundreds of millions of dollars in revenue. The scale seemed quirky and, at some point, you can also fall in love with your own quirkiness to a degree that isn’t actually healthy, and I’ve certainly done that over time, and we should have had count the beans a little more diligently, a little earlier. This was part of a blessing of just being wildly profitable and selling software that can have infinite margins, basically, that you can get away with a bunch of stuff that you perhaps shouldn’t. What partially taught me this lesson was when we realized we had not been collecting sales tax in different US states where we had Nexus, and it took us about two years and $5 million in settlements and cleanups to get out of that mess. After that, I went like, “Okay, fine, we can hire a finance person.”
These days, we do have a head of finance. We did not for the first 19 years of life, I think. We got away with basically just having an accountant do our books in the same way you would do a small ice cream shop, except we would, over time, have done hundreds of millions of dollars in revenue. The scale seemed quirky and, at some point, you can also fall in love with your own quirkiness to a degree that isn’t actually healthy, and I’ve certainly done that over time, and we should have had count the beans a little more diligently, a little earlier. This was part of a blessing of just being wildly profitable and selling software that can have infinite margins, basically, that you can get away with a bunch of stuff that you perhaps shouldn’t. What partially taught me this lesson was when we realized we had not been collecting sales tax in different US states where we had Nexus, and it took us about two years and $5 million in settlements and cleanups to get out of that mess. After that, I went like, “Okay, fine, we can hire a finance person.”
Lex Fridman
Okay.
Okay.
DHH
We now have a wonderful finance person, Ron, who actually ended up replacing something else we used to have. We used to have a full-time data analytics person who would do all sorts of insight mining for, “Why are people signing up for this thing?” We ran that for 10 years and realized, “You know what? If I can have either a data analytics person or an accountant, I’m picking the accountant.”
We now have a wonderful finance person, Ron, who actually ended up replacing something else we used to have. We used to have a full-time data analytics person who would do all sorts of insight mining for, “Why are people signing up for this thing?” We ran that for 10 years and realized, “You know what? If I can have either a data analytics person or an accountant, I’m picking the accountant.”
Small teams
Lex Fridman
I love this so much on so many levels. Can we just linger on that advice that you’ve given, that small teams are better? I think that’s really less… Less is more. What did you say before? “Worse is better”? Okay, I’m sorry.
I love this so much on so many levels. Can we just linger on that advice that you’ve given, that small teams are better? I think that’s really less… Less is more. What did you say before? “Worse is better”? Okay, I’m sorry.
DHH
Worse is better on adoption with technology a lot of times.
Worse is better on adoption with technology a lot of times.
Lex Fridman
Yeah.
Yeah.
DHH
I think it actually comes out of the same thing. It comes out of the fact that many of the great breakthroughs are created by not even just tiny teams, but individuals, individuals writing something. An individual writing something on some parameter, what they do is worse. Of course, it’s worse when one person has to make something that a huge company have hundreds if not thousands of developers that they can have work on that problem, but in so many other parameters, that worstness is the value, that less is the value. In Getting Real, which we wrote back in 2006, we talk about this notion of less software. When we first got started with Basecamp back in 2004, people would ask us all the time, “Aren’t you petrified of Microsoft? They have so many more resources, they have so many more programmers. What if they take a liking to your little niche here and they show up and they just throw a thousand programmers at the problem?”
I think it actually comes out of the same thing. It comes out of the fact that many of the great breakthroughs are created by not even just tiny teams, but individuals, individuals writing something. An individual writing something on some parameter, what they do is worse. Of course, it’s worse when one person has to make something that a huge company have hundreds if not thousands of developers that they can have work on that problem, but in so many other parameters, that worstness is the value, that less is the value. In Getting Real, which we wrote back in 2006, we talk about this notion of less software. When we first got started with Basecamp back in 2004, people would ask us all the time, “Aren’t you petrified of Microsoft? They have so many more resources, they have so many more programmers. What if they take a liking to your little niche here and they show up and they just throw a thousand programmers at the problem?”
My answer, perhaps partly because I was like 24 was, first of all, “No, no care in the world,” but the real answer was they’re not going to produce the same thing. You cannot produce the software that Basecamp is with a team of a 1,000 people. You will build the software that 1,000 people build, and that’s not the same thing at all. So much of the main breakthrough in both end-user systems but also in open-source systems and fundamental systems, they’re done by individuals or very small teams. Even all these classical histories of Apple has always been like, well, there’s a big organization, but then you had the team that was actually working on the breakthrough. It was four people, it was eight people, it was never 200.
Lex Fridman
The large team seems to slow things down.
The large team seems to slow things down.
DHH
Yes.
Yes.
Lex Fridman
It’s so fascinating, part of it’s the manager thing.
It’s so fascinating, part of it’s the manager thing.
DHH
Because humans don’t scale, communication between humans certainly don’t scale. You basically get the network-cost effect. Every time you add a new node, it goes up exponentially. This is perhaps the key thing of why I get to be so fond of having no managers at Basecamp, because our default team size is two. One programmer, one designer, one feature. When you’re operating at that level of scale, you don’t need sophistication, you don’t need advanced methodologies, you don’t need multiple layers of management, because you can just do. The magic of small teams is that they just do. They don’t have to argue, because we don’t have to set direction, we won’t have to worry about the road map. We can just sit down and make something, and then see if it’s good. When you can get away with just making things, you don’t have to plan, and if you can get out of planning, you can follow the truth that emerges from the code, from the product, from the thing you’re working on in the moment.
Because humans don’t scale, communication between humans certainly don’t scale. You basically get the network-cost effect. Every time you add a new node, it goes up exponentially. This is perhaps the key thing of why I get to be so fond of having no managers at Basecamp, because our default team size is two. One programmer, one designer, one feature. When you’re operating at that level of scale, you don’t need sophistication, you don’t need advanced methodologies, you don’t need multiple layers of management, because you can just do. The magic of small teams is that they just do. They don’t have to argue, because we don’t have to set direction, we won’t have to worry about the road map. We can just sit down and make something, and then see if it’s good. When you can get away with just making things, you don’t have to plan, and if you can get out of planning, you can follow the truth that emerges from the code, from the product, from the thing you’re working on in the moment.
You know far more about what the great next step is when you’re one step behind, rather than if you try 18 months in advance to map out all the steps. “How do we get from here to very far away?” You know what? That’s difficult to imagine in advance, because humans are very poor at that. Maybe AI one day will be much better than us, but humans can put one foot in front of each other. That’s not that hard, and that allows you to get away with all that sophistication. The process has become much simpler, you need far fewer people, it compounds, you need much less process, you need to waste less time in meetings. You can just spend these long glorious days and weeks of uninterrupted time solving real problems you care about and that are valuable, and you’re going to find that that’s what the market actually wants.
No one is buying something because there’s a huge company behind it, most of the time. They’re buying something because it’s good, and the way you get something good is you don’t sit around and have a meeting about it, you try stuff, you build stuff.
Lex Fridman
It really is incredible what one person, honestly one person can do in 100 hours of deep work, of focused work. Even less.
It really is incredible what one person, honestly one person can do in 100 hours of deep work, of focused work. Even less.
DHH
I’ll tell you this, I tracked exactly the number of hours I spent on the first version of Basecamp. I was doing this, because at the time, I was working on a contract basis for Jason. He was paying me… I was going to say $15 an hour, that’s what I got paid when we first got started. I think he had bumped my pay to a glorious $25, but I was billing him, and I know that the invoice for the first version of Basecamp was 400 hours. That’s what it took for one sole individual in 2004 to create an entire system that has then gone on to gross hundreds of millions of dollars and continues to do extremely well. One person, just me setting up everything. Part of that story is Ruby, part of that story’s Rails, but a lot of it is also just me plus Jason plus Ryan plus Matt.
I’ll tell you this, I tracked exactly the number of hours I spent on the first version of Basecamp. I was doing this, because at the time, I was working on a contract basis for Jason. He was paying me… I was going to say $15 an hour, that’s what I got paid when we first got started. I think he had bumped my pay to a glorious $25, but I was billing him, and I know that the invoice for the first version of Basecamp was 400 hours. That’s what it took for one sole individual in 2004 to create an entire system that has then gone on to gross hundreds of millions of dollars and continues to do extremely well. One person, just me setting up everything. Part of that story is Ruby, part of that story’s Rails, but a lot of it is also just me plus Jason plus Ryan plus Matt.
That was the entire company at the time, and we could create something of sheer sustaining value with such a tiny team, because we were a tiny team. Not despite off. Small is not a stepping stone. This is the other thing that people get into their head, this is one of the big topics about a rework, that it gave entrepreneurs the permission to embrace being a small team not as a waypoint, not as, “I’m trying to become 1,000 people.” No, I actually like being a small team. Small teams are more fun. If you ask almost anyone, I’m sure Toby would say this too, even at his scale, the sheer enjoyment of building something is in the enjoyment of building it with a tiny team. Now, you can have impact at a different scale when you have a huge company, I fully recognize that and I see the appeal of it, but in the actual building of things, it’s always small teams. Always.
Jeff Bezos
Lex Fridman
How do you protect the small team? Basecamp has successfully stayed small. What’s been the dragon you had to fight off? Basically, you make a lot of money, there’s a temptation to grow, so how do you not grow?
How do you protect the small team? Basecamp has successfully stayed small. What’s been the dragon you had to fight off? Basically, you make a lot of money, there’s a temptation to grow, so how do you not grow?
DHH
Don’t take venture capital.
Don’t take venture capital.
Lex Fridman
Okay, that that’s step one.
Okay, that that’s step one.
DHH
That is point number one.
That is point number one.
Lex Fridman
First of all-
First of all-
DHH
Number two is-
Number two is-
Lex Fridman
… everybody takes venture capital, so you already went.
… everybody takes venture capital, so you already went.
DHH
That’s been the answer for the longest time, because the problem isn’t just venture capital, it’s other people’s money. Once you take other people’s money, completely understandably, they want a return, and they would prefer to have the largest return possible, because it’s not them sitting in the code, it’s not them getting the daily satisfaction out of building something, chiseling beautiful code poems out of the editor, right? They don’t get that satisfaction. They get the satisfaction maybe of seeing something nice put into the world, that’s fair, but they certainly also get a satisfaction of a higher return. There is this sense, certainly in venture capital, stated in venture capital, that the whole point of you taking the money is to get to $1 billion or more.
That’s been the answer for the longest time, because the problem isn’t just venture capital, it’s other people’s money. Once you take other people’s money, completely understandably, they want a return, and they would prefer to have the largest return possible, because it’s not them sitting in the code, it’s not them getting the daily satisfaction out of building something, chiseling beautiful code poems out of the editor, right? They don’t get that satisfaction. They get the satisfaction maybe of seeing something nice put into the world, that’s fair, but they certainly also get a satisfaction of a higher return. There is this sense, certainly in venture capital, stated in venture capital, that the whole point of you taking the money is to get to $1 billion or more.
Now, the path to that usually does go through running established playbooks, and then when it comes to software, the enterprise sales playbook is that playbook. If you’re doing B2B, software SaaS, you will try to find product market fit, and the second you have it, you will abandon your small and medium-sized accounts to chase the big whales with a huge sales force and, by then, you’re 1,000 people and life sucks.
Lex Fridman
That said, people are just curious about this. Have gotten a chance to get to know Jeff Bezos. He invested in Basecamp, not controlling…
That said, people are just curious about this. Have gotten a chance to get to know Jeff Bezos. He invested in Basecamp, not controlling…
DHH
He bought secondaries. This was the funny thing, is that when… Investing have these two dual meanings. Normally, when people think about investing, they think you’re putting in growth capital, because you want the business to hire more people, to do more R&D, so they can grow bigger. Bezos didn’t do that, actually. He bought an ownership stake directly from Jason and I, and 100% of the proceeds of that purchase went into my and Jason’s bank account. Personal bank accounts. Not a single cent went into the account of the company, because we didn’t need the money to grow. What we needed or what we certainly enjoyed was, to some extent, maybe the vote of confidence, but more so the security of taking a little bit off the tables is that we dared turn down the big bucks from venture capitals.
He bought secondaries. This was the funny thing, is that when… Investing have these two dual meanings. Normally, when people think about investing, they think you’re putting in growth capital, because you want the business to hire more people, to do more R&D, so they can grow bigger. Bezos didn’t do that, actually. He bought an ownership stake directly from Jason and I, and 100% of the proceeds of that purchase went into my and Jason’s bank account. Personal bank accounts. Not a single cent went into the account of the company, because we didn’t need the money to grow. What we needed or what we certainly enjoyed was, to some extent, maybe the vote of confidence, but more so the security of taking a little bit off the tables is that we dared turn down the big bucks from venture capitals.
It was essentially a vaccine against wanting to take a larger check from people who then wanted to take the company to something enormous that we didn’t want to go with it. Jeff gave Jason and I just enough money that we were comfortable turning all these people down in a way where, if it had turned belly up six months later, we wouldn’t have been kicking ourselves and gone, “We had something here that was worth millions, and now we have nothing and I have to worry about rent and groceries again.”
Lex Fridman
It is a vote of confidence. I’d love to hear Jeff’s side of this story of why, because he doesn’t need the money. I think it probably is just believing in people and wanting to have cool stuff be created in the world and make money off of it, but not like-
It is a vote of confidence. I’d love to hear Jeff’s side of this story of why, because he doesn’t need the money. I think it probably is just believing in people and wanting to have cool stuff be created in the world and make money off of it, but not like-
DHH
100% the motivation for Jeff wasn’t a return, because he actually has a team, his private office, that runs these investments, who did the calculus on the investment pitch we gave him, which was so ridiculous that Jason and I were laughing our asses off when we were writing down our metrics. I was like, “No one’s going to pay this. No one is going to give us this multiple of this amount of revenue, and that’s fine.” I mean, we took the call essentially out of an awe that Jeff Bezos even wanted to look at us. “Do you know what? We don’t want venture capital, we don’t need other people’s money, but let’s just give him a bullshit number that no sane person would actually say yes to, and then we can each go our own way.”
100% the motivation for Jeff wasn’t a return, because he actually has a team, his private office, that runs these investments, who did the calculus on the investment pitch we gave him, which was so ridiculous that Jason and I were laughing our asses off when we were writing down our metrics. I was like, “No one’s going to pay this. No one is going to give us this multiple of this amount of revenue, and that’s fine.” I mean, we took the call essentially out of an awe that Jeff Bezos even wanted to look at us. “Do you know what? We don’t want venture capital, we don’t need other people’s money, but let’s just give him a bullshit number that no sane person would actually say yes to, and then we can each go our own way.”
His investment team said like, “Jeff, no way. This makes no economic sense at all, they’re asking for way too much money with way too little revenue,” and Jeff just went like, “I don’t care, I want to invest in this guy,” because to him, at the time, it was chump change. Jason and I each got a few million dollars, whatever the currency swing between the yen and the dollar that day probably moved 10X for his net worth than our investment did. Jeff seemed genuinely interested in being around interesting people, interesting companies, helping someone go to distance. I actually look back on that relationship with some degree of regret, because I took that vote of confidence for granted in ways that I’m a little bit ashamed of. Over the years, I’ve been more critical about some of the things that Amazon had done that I feel now is justified.
That’s just part of that processing of it, but on the economic sense, he gave us that confidence. He gave us the economic confidence, but then he also gave us the confidence of a CEO running, perhaps at the time the most important internet business in the US, showing up to our calls, which we would have with him once a year, and basically, just going like, “Yeah, you guys are doing awesome stuff. You should just keep doing awesome stuff. I read your book, it’s awesome. You launched this thing, it’s awesome. You should just do more of that. I don’t actually know how to run your business, you guys know.”
Lex Fridman
The book was out. From a fan perspective, I’m curious about how Jeff Bezos is able to see… Because to me, you and Jason are special humans in the space of tech, and the fact that Jeff was able to see that, right? How hard is it to see that?
The book was out. From a fan perspective, I’m curious about how Jeff Bezos is able to see… Because to me, you and Jason are special humans in the space of tech, and the fact that Jeff was able to see that, right? How hard is it to see that?
DHH
He certainly saw it very early, and I think this is something that Jeff does better than almost anyone else. He spots that opportunity so far in advance of anyone else even opened their eyes to it, or certainly is willing to bet on it far early and far harder than anyone else is, and he’s just right time and again. We were not the only investment that he made and, certainly, Amazon had an extremely long-term vision, far longer than I have ever had the gumption to keep… I think of myself as a long-term thinker, I’m playing a child’s game compared to the game that Jeff is playing. When I looked at Amazon’s economics around the dot-com boom and bust, they looked ridiculous. They were losing so much money, they were so hated by the market. No one believed that it was going to turn into what it is, but Jeff did in a way that, that level of conviction, I really aspire to.
He certainly saw it very early, and I think this is something that Jeff does better than almost anyone else. He spots that opportunity so far in advance of anyone else even opened their eyes to it, or certainly is willing to bet on it far early and far harder than anyone else is, and he’s just right time and again. We were not the only investment that he made and, certainly, Amazon had an extremely long-term vision, far longer than I have ever had the gumption to keep… I think of myself as a long-term thinker, I’m playing a child’s game compared to the game that Jeff is playing. When I looked at Amazon’s economics around the dot-com boom and bust, they looked ridiculous. They were losing so much money, they were so hated by the market. No one believed that it was going to turn into what it is, but Jeff did in a way that, that level of conviction, I really aspire to.
I think that’s one of the main things I’ve taken away from that relationship is that you can just believe in yourself. To that degree against those odds? That’s ridiculous. He did that so many times at our level that it’s pathetic if I’m doubting myself.
Lex Fridman
Yeah. I think Amazon is one of those companies. It’s come under a bunch of criticism over the years. This is something about humans that I don’t appreciate so much, that we take for granted the positive that a thing brings real quick, and then we just start criticizing the thing. It’s the Wi-Fi and the airplanes.
Yeah. I think Amazon is one of those companies. It’s come under a bunch of criticism over the years. This is something about humans that I don’t appreciate so much, that we take for granted the positive that a thing brings real quick, and then we just start criticizing the thing. It’s the Wi-Fi and the airplanes.
DHH
That’s exactly it.
That’s exactly it.
Lex Fridman
I think Amazon, there could be a case made that Amazon is one of the greatest companies in the last 100 years.
I think Amazon, there could be a case made that Amazon is one of the greatest companies in the last 100 years.
DHH
For sure, I think it’s an easy case to make. What I also think is that the price you pay to be one of the greatest companies in the last 100 years is a lot of detractors, a lot of pushback, a lot of criticism. That this is actually order restored in the universe. One of my favorite teachers in all the time I’ve been on the internet is Kathy Sierra. I don’t know if you know her work, but she was active for only a few short years before the cruel internet ran her off, but she wrote a blog called Creating Passionate Users, and she carved into my brain this notion of balance in the universe. If you’re creating something of value that a lot of people love, you must create an equal and opposite force of haters. You cannot have people who love what you do without also having people who hate what you do.
For sure, I think it’s an easy case to make. What I also think is that the price you pay to be one of the greatest companies in the last 100 years is a lot of detractors, a lot of pushback, a lot of criticism. That this is actually order restored in the universe. One of my favorite teachers in all the time I’ve been on the internet is Kathy Sierra. I don’t know if you know her work, but she was active for only a few short years before the cruel internet ran her off, but she wrote a blog called Creating Passionate Users, and she carved into my brain this notion of balance in the universe. If you’re creating something of value that a lot of people love, you must create an equal and opposite force of haters. You cannot have people who love what you do without also having people who hate what you do.
The only escape from that is mediocrity. If you are so boring and so uninteresting that no one gives a damn whether you exist or not, yeah, you don’t get the haters, but you also don’t get the impact of people who really enjoy your work. I think Amazon is that just at the massive scale, right? They’ve brought so much value and change to technology, to commerce that they must simply have a black hole size of haters. Otherwise, the universe is simply going to tip over.
Lex Fridman
Let me ask you about small teams. You mentioned Jason a bunch of times, Jason Fried. You have been partners for a long, long time. Perhaps it’s fair to say he’s more on the the design, business side and you’re the tech, the engineering wizard. How have you guys over all these years, creating so many amazing products, not murder each other? It’s a great story of partnership. What can you say about collaboration? What can you say about Jason that you love, that you’ve learned from? Why does this work?
Let me ask you about small teams. You mentioned Jason a bunch of times, Jason Fried. You have been partners for a long, long time. Perhaps it’s fair to say he’s more on the the design, business side and you’re the tech, the engineering wizard. How have you guys over all these years, creating so many amazing products, not murder each other? It’s a great story of partnership. What can you say about collaboration? What can you say about Jason that you love, that you’ve learned from? Why does this work?
DHH
First, I’ll say we have tried to murder each other several times over the years, but far less, I think in the last decade. In the early days, our product discussions were so fierce that, when we were having them in the office and there were other employees around, some of them were legitimately worried that the company was about to fall apart, because the volume coming out of the room would be so high and sound so acrimonious that they were legitimately worried the whole thing was going to fall apart. You know what’s funny? Is that it never felt like that in the moment. It always felt like just a peak vigorous search for something better, and that we were able to stomach that level of adversity on the merits of an idea, because it was about the idea. It wasn’t about the person and it never really got personal. Not even never, really, it didn’t get personal. It wasn’t like, “Jason, you’re an asshole.” It was like, “Jason, you’re an idiot, and you’re an idiot because you’re looking at this problem the wrong way, and let me tell you the right way to do it.”
First, I’ll say we have tried to murder each other several times over the years, but far less, I think in the last decade. In the early days, our product discussions were so fierce that, when we were having them in the office and there were other employees around, some of them were legitimately worried that the company was about to fall apart, because the volume coming out of the room would be so high and sound so acrimonious that they were legitimately worried the whole thing was going to fall apart. You know what’s funny? Is that it never felt like that in the moment. It always felt like just a peak vigorous search for something better, and that we were able to stomach that level of adversity on the merits of an idea, because it was about the idea. It wasn’t about the person and it never really got personal. Not even never, really, it didn’t get personal. It wasn’t like, “Jason, you’re an asshole.” It was like, “Jason, you’re an idiot, and you’re an idiot because you’re looking at this problem the wrong way, and let me tell you the right way to do it.”
Lex Fridman
As a small tangent, let me say that some people have said, we’ll probably return to this, that you sometimes can have flights of temper on the internet and so on. I never take it that way, because it is the same kind of ilk. Maybe I haven’t seen the right traces of temper, but usually, it’s about the idea, and it’s just excited, passionate human.
As a small tangent, let me say that some people have said, we’ll probably return to this, that you sometimes can have flights of temper on the internet and so on. I never take it that way, because it is the same kind of ilk. Maybe I haven’t seen the right traces of temper, but usually, it’s about the idea, and it’s just excited, passionate human.
DHH
That’s exactly what I like to think of it as. It doesn’t always come across as that and I can see why spectators in particular sometimes would see something that looks like I’m going after the man rather than the ball. I do think I’ve tried to get better at that, but in my relationship with-
That’s exactly what I like to think of it as. It doesn’t always come across as that and I can see why spectators in particular sometimes would see something that looks like I’m going after the man rather than the ball. I do think I’ve tried to get better at that, but in my relationship with-
DHH
I do think I’ve tried to get better at that, but in my relationship with Jason, I think it’s worked so well because we have our own distinct areas of competence, where we fully trust each other. Jason trusts me to make the correct technical decisions. I trust him to make the correct design and product direction decisions, and then we can overlap and share on the business, on marketing, on writing, on other aspects of it. So that’s one thing, is that if you’re starting a business with someone where you do exactly the same as they do, and you’re constantly contesting who’s the more competent person, I think that’s far more difficult and far more volatile. So if you’re starting a business and you’re both programmers and you both work on the same kind of programming, good luck. I think that’s hard.
I do think I’ve tried to get better at that, but in my relationship with Jason, I think it’s worked so well because we have our own distinct areas of competence, where we fully trust each other. Jason trusts me to make the correct technical decisions. I trust him to make the correct design and product direction decisions, and then we can overlap and share on the business, on marketing, on writing, on other aspects of it. So that’s one thing, is that if you’re starting a business with someone where you do exactly the same as they do, and you’re constantly contesting who’s the more competent person, I think that’s far more difficult and far more volatile. So if you’re starting a business and you’re both programmers and you both work on the same kind of programming, good luck. I think that’s hard.
I tried to pick an easier path, working with a designer, where I knew that at least half of the time I could just delegate to his experience and competence and say like, do you know what? I may have an opinion. I have an opinion all the time on design, but I don’t have to win the argument because I trust you. Now, occasionally we would have overlaps on business or direction where we’d both feel like we had a strong stake in the game and we both had a claim to competence in that area, but then for whatever reason, we also both had a long-term vision, where I would go, do you know what? I think we’re wrong here, but as I learned from Jeff Bezos, by the way, I’m going to disagree and commit. That was one of those early lessons he gave us, that was absolutely crucial and perhaps even instrumental in ensuring that Jason and I have been working together for a quarter of a century. Disagree and commit is one of the all time Jeff Bezos’ greats.
Lex Fridman
I’m just surprised that Yoko Ono hasn’t come along. You know what I mean? There’s so many Yokos in this world.
I’m just surprised that Yoko Ono hasn’t come along. You know what I mean? There’s so many Yokos in this world.
DHH
It might’ve happened if not in part because we don’t sit on each other’s lap all the time. Most of our careers, we haven’t even lived in the same city. I lived in Chicago for a couple of years while we were getting going after I’d moved to the US in 2005, but then I moved to Malibu and then I lived in Spain and then I lived in Copenhagen. And Jason and I, from the foundation of our relationship learned how to work together in a remarkably efficient way where we didn’t have to actually talk that much. On any given week, I’d be surprised if Jason and I spent more than two hours of direct exchange and communication.
It might’ve happened if not in part because we don’t sit on each other’s lap all the time. Most of our careers, we haven’t even lived in the same city. I lived in Chicago for a couple of years while we were getting going after I’d moved to the US in 2005, but then I moved to Malibu and then I lived in Spain and then I lived in Copenhagen. And Jason and I, from the foundation of our relationship learned how to work together in a remarkably efficient way where we didn’t have to actually talk that much. On any given week, I’d be surprised if Jason and I spent more than two hours of direct exchange and communication.
Lex Fridman
Yeah. Sometimes it’s the basic human frictions that just accumulate all time.
Yeah. Sometimes it’s the basic human frictions that just accumulate all time.
DHH
Yes. I think if you rub up against another person, that person damn well better be your spouse, if it’s too much for too long.
Yes. I think if you rub up against another person, that person damn well better be your spouse, if it’s too much for too long.
Lex Fridman
Yeah. But even there, COVID has really tested the relationship. It’s fascinating to watch.
Yeah. But even there, COVID has really tested the relationship. It’s fascinating to watch.
DHH
It has, and I do think that having some separation, which is kind of counterintuitive because I think a lot of people think the more collaboration you can have, the better. The more ideas that can bounce back and forth, the better. And both Jason and I, for whatever reason came to the conclusion early on in careers, absolutely not. That’s complete baloney. This is why we were huge proponents of remote work. This is why I enjoy working in my home office where I can close the door and not see another human for six hours at the time. I don’t want to bounce ideas off you all the time. I want to bounce ideas off you occasionally and then I want to go off and implement those ideas.
It has, and I do think that having some separation, which is kind of counterintuitive because I think a lot of people think the more collaboration you can have, the better. The more ideas that can bounce back and forth, the better. And both Jason and I, for whatever reason came to the conclusion early on in careers, absolutely not. That’s complete baloney. This is why we were huge proponents of remote work. This is why I enjoy working in my home office where I can close the door and not see another human for six hours at the time. I don’t want to bounce ideas off you all the time. I want to bounce ideas off you occasionally and then I want to go off and implement those ideas.
There’s way too much bouncing going on and not enough scoring, not enough dunking, and I think this is one of the great traps of executive rule. Once a founder elevates themselves all the way up to an executive, where what they’re doing is just telling other people what to do, that’s the realm they live in 24/7. They just live in the idea realm. Oh, I can just tell more people, more things what to do and we can just see it happen. If you actually have to be part of implementing that, you slow your horse. Do you know what? I had a good idea last week. I’m going to save the rest of my good ideas until next month.
Why meetings are toxic
Lex Fridman
There is a temptation for the managers and for the people in the executive layer to do something, which that’s something usually means a meeting. And so that’s why you say-
There is a temptation for the managers and for the people in the executive layer to do something, which that’s something usually means a meeting. And so that’s why you say-
DHH
Yes. Their job is telling other people what to do.
Yes. Their job is telling other people what to do.
Lex Fridman
Yeah. And the meeting, so this is one of the big things you’re against is meeting-
Yeah. And the meeting, so this is one of the big things you’re against is meeting-
DHH
Meetings are toxic. And this really I think ties into this with Jason and I. If I had to count out the total number of meetings we’ve had in 24 years of collaborations, where we in person sat in front of each other and discussed a topic, probably it’d be less than whatever three months at a fan company. We just haven’t done that that much. We haven’t worn it out. One of this funny metaphors that Trump came up with at one point was, a human has a limited number of steps in their life. That’s the longevity argument here. You can do so much activity and then you run out.
Meetings are toxic. And this really I think ties into this with Jason and I. If I had to count out the total number of meetings we’ve had in 24 years of collaborations, where we in person sat in front of each other and discussed a topic, probably it’d be less than whatever three months at a fan company. We just haven’t done that that much. We haven’t worn it out. One of this funny metaphors that Trump came up with at one point was, a human has a limited number of steps in their life. That’s the longevity argument here. You can do so much activity and then you run out.
There’s some kernel in that idea that can be applied to relationship. There’s some amount of exchange we can have. There’s some amount of time we can spend together, where you can wear it out. Jason and I were diligent about not wearing each other out, and I think that is absolutely key to the longevity of the relationship combined with that level of trust and then just combining with the level that we really like the work itself. We don’t just like the brainstorming the [inaudible 02:55:21] where we just come up with good ideas. Now we like to do the ideas, and we like to be part of that process directly ourselves. I like to program, he likes to do design. We could go off and do our little things for long stretches of time. In case you come together and go like, hey, let’s launch a great product.
Lex Fridman
This might sound like I’m asking you to do therapy, but I find myself to sometimes want or long for a meeting because I’m lonely. Remote work is just sitting by yourself, I don’t know, it can get really lonely for long stretches of time.
This might sound like I’m asking you to do therapy, but I find myself to sometimes want or long for a meeting because I’m lonely. Remote work is just sitting by yourself, I don’t know, it can get really lonely for long stretches of time.
DHH
Let me give you a tip. Get a wife.
Let me give you a tip. Get a wife.
Lex Fridman
Yes. God, damn it.
Yes. God, damn it.
DHH
Get a couple kids.
Get a couple kids.
Lex Fridman
All right.
All right.
DHH
Family really is the great antidote to loneliness, and I mean that as sincerely as I can possibly say it. I certainly had exactly that feeling you described early in my career when I was working remotely, and I was just like me living in an apartment, a total stereotype, where for the longest time when I first moved to Chicago, all I had on the floor was a mattress. And then I bought this big TV and I didn’t even mount it, and then I had a stack of DVDs. And I was basically, I was working a lot of time and then I would just go home and I’d do that, and it wasn’t great. It really wasn’t. I do think that humans need humans. And if you can’t get them at work, and I actually sort of kind of don’t want them at work, at least I don’t want them for 40 hours a week. That’s not what I prefer.
Family really is the great antidote to loneliness, and I mean that as sincerely as I can possibly say it. I certainly had exactly that feeling you described early in my career when I was working remotely, and I was just like me living in an apartment, a total stereotype, where for the longest time when I first moved to Chicago, all I had on the floor was a mattress. And then I bought this big TV and I didn’t even mount it, and then I had a stack of DVDs. And I was basically, I was working a lot of time and then I would just go home and I’d do that, and it wasn’t great. It really wasn’t. I do think that humans need humans. And if you can’t get them at work, and I actually sort of kind of don’t want them at work, at least I don’t want them for 40 hours a week. That’s not what I prefer.
You need something else. You need other relationships in your life, and there is no greater depth of relationship if you can find someone that you actually just want to spend a lot of time with. That’s key to it and I think it’s key for both Jason and I that we’ve had families for quite a long time, and it grounds you to in a way where the sprint of a startup can get traded in for the marathon of an enduring company, and you get settled in a way. We talked briefly about sometimes I get fired up. I mean, a lot of times, maybe even most of the times I get fired up about topics, but I don’t get fired up in the same way now as I used to when I was 24. I’m still extremely passionate about ideas and trying to find the right things, but having a family, meeting my wife, building a life around that has just mellowed everything out in a completely cliche way, but I think it’s actually key.
I think if we could get more even younger people not to wait until they were in their god-damn 30s or early 40s to hitch up with someone, we’d be better off and we’d have more stable business relationships as well, because folks would get that nurturing human relation somewhere else. Now, when I say all of that, I also accept that there are plenty of great businesses that’s been built over the years that have not been built remote, that have been built by a gang of hooligans sitting in an office for immense hours at time.
I mean, both John Carmack and Tim Sweeney talked about that in the ’90s with their careers that that was just basically work, sleep, hang out with the guys at the office, right? Totally fair. That never appealed to me. Both Jason and I saw eye to eye on the idea that 40 hours a week dedicated to work was enough that if we were going to go to distance for not just the five to seven years it takes to build a VC case up to an exit, but for potentially 10 years, 20 years or further, we needed to become whole humans, because only that whole human-ness was going to go to distance, which included building up friendships outside of work, having hobbies, finding a mate and having a family. And that entire existence, those legs of the stool that work is not the only thing in life is completely related to the fact that we’ve been around for 25 years. There’s way too much, especially in America of false trade-offs. Oh, you want to build a successful business? Well, you can either have money enjoyment or family or health, pick one.
What? Why do we have to give up all of this? Now, again, I’m not saying, and there are moments, prayers, life where you can sprint, but I am saying if that sprint turns into a decade, you’re going to pay for it. And you’re going to pay for it in ways I’ve seen time and again, seemed like a very bad trade, that even if it works. And by the way most of the time it does not. Most of the time startups go bust. Most of the times people spend five, seven years or something that does not pan out, and they don’t get the payout. And then they just sit with regret of like, what the fuck happened to my 20s? Early on, Jason and I basically made the pact that working together was not going to lead to that kind of regret, that we were going to allow ourselves and each other to build a whole life outside of work. And the fact that that worked is something I feel is almost like forbidden knowledge.
Certainly in technology circles in US, it’s something that we’ve tried to champion for 20 years and we still get slacked for. Just two days ago, I had another Twitter beef with someone saying like, “Oh, well, okay, maybe it worked, but you didn’t turn into Atlassian, so you’re a failure. Basecamp isn’t Jira, so why are you even bothering?” And it’s such a fascinating winner-takes- all mentality that unless you dominate everyone else in all the ways, you’ve lost. When so much of life is far more open to multiple winners, where we can end up with a business that have made hundreds of millions of dollars over the years and we’ve kept much of that to do whatever we want and that that’s enough. That’s good. That’s great. That’s actually something worth aspiring to. Certainly, it should be a path for someone to consider choosing rather than the VC unicorn of bust mentality that dominates everything.
Case against retirement
Lex Fridman
Yeah. I’d love to ask you about this exchange so you can explain to me the whole saga, but so just a link on that a little bit is, I think there’s a notion that success for tech founder is like work for a few years all out and then exit, sell your company for, I don’t know, hundreds of millions of dollars. That’s success. When it seems in reality, when you look at who the people like you, like really smart, creative humans, who they actually are and what happiness entails, it actually entails working your whole life a little bit. Because you actually love the programming, you love the building, you love the designer and you don’t want to exit, and that’s something you’ve talked about really, really eloquently about. So you actually want to create a life, where you’re always doing the building and doing it in a way that’s not completely taken over your life.
Yeah. I’d love to ask you about this exchange so you can explain to me the whole saga, but so just a link on that a little bit is, I think there’s a notion that success for tech founder is like work for a few years all out and then exit, sell your company for, I don’t know, hundreds of millions of dollars. That’s success. When it seems in reality, when you look at who the people like you, like really smart, creative humans, who they actually are and what happiness entails, it actually entails working your whole life a little bit. Because you actually love the programming, you love the building, you love the designer and you don’t want to exit, and that’s something you’ve talked about really, really eloquently about. So you actually want to create a life, where you’re always doing the building and doing it in a way that’s not completely taken over your life.
DHH
Mojito Island is a mirage. It always was. There is no retirement for ambitious people. There is no just sitting back on the beach and sipping a mojito for what, for two weeks before you go damn crazy and want to get back into the action. That’s exactly what happens to most people who have the capacity to build those kinds of exits. I’ve never seen, I shouldn’t say never. I’ve almost never seen anyone be able to pull that off, yet so many think that that’s why they’re doing it. That’s why they’re sacrificing everything because once I get to the finish line, I’m golden, I’ve won, I can retire, I can sit back, I can just relax. And you find out that that kind of relaxation is actually hell. It’s hell for creative people to squander their God-given creative juices and capacities. And I was really lucky to read the book Flow by Mihaly Csikszentmihalyi early on [inaudible 03:03:39].
Mojito Island is a mirage. It always was. There is no retirement for ambitious people. There is no just sitting back on the beach and sipping a mojito for what, for two weeks before you go damn crazy and want to get back into the action. That’s exactly what happens to most people who have the capacity to build those kinds of exits. I’ve never seen, I shouldn’t say never. I’ve almost never seen anyone be able to pull that off, yet so many think that that’s why they’re doing it. That’s why they’re sacrificing everything because once I get to the finish line, I’m golden, I’ve won, I can retire, I can sit back, I can just relax. And you find out that that kind of relaxation is actually hell. It’s hell for creative people to squander their God-given creative juices and capacities. And I was really lucky to read the book Flow by Mihaly Csikszentmihalyi early on [inaudible 03:03:39].
Lex Fridman
Nice, the pronunciations.
Nice, the pronunciations.
DHH
Do you know what? I had to practice that with AI over the last few days because I knew I was going to cite him and I butchered his name several times. So AI taught me how to pronounce that at least somewhat correctly. But his main work over his career was essentially the concept of flow that came out of a search for understanding happiness. Why are some people happy? When are they happy? And what he learned was quite illuminating. He learned that people aren’t happy when they sit on Mojito Island. They’re not happy when they’re free of all obligations and responsibilities. No. They’re happy in these moments where they’re reaching and stretching their capacities just beyond what they can currently do. In those moments of flow, they can forget time and space. They can sit in front of the keyboard, program a hard problem, think 20 minutes have passed and suddenly it’s been three hours.
Do you know what? I had to practice that with AI over the last few days because I knew I was going to cite him and I butchered his name several times. So AI taught me how to pronounce that at least somewhat correctly. But his main work over his career was essentially the concept of flow that came out of a search for understanding happiness. Why are some people happy? When are they happy? And what he learned was quite illuminating. He learned that people aren’t happy when they sit on Mojito Island. They’re not happy when they’re free of all obligations and responsibilities. No. They’re happy in these moments where they’re reaching and stretching their capacities just beyond what they can currently do. In those moments of flow, they can forget time and space. They can sit in front of the keyboard, program a hard problem, think 20 minutes have passed and suddenly it’s been three hours.
They look back upon those moments with the greatest amount of joy, and that is what peak happiness is. If you take away the pursuit of those kinds of problems, if you eliminate all the problems from your plate, you’re going to get depressed. You’re not going to have a good time. Now, there are people who can do that, but they’re not the same kind of people who built these kinds of companies. So you have to accept the kind of individual you are. If you are on this path, don’t bullshit yourself. Don’t bullshit yourself into thinking, I’m just going to sacrifice everything, my health, my family, my hobbies, my friends, but in 10 years I’m going to make it all up, because in 10 years I can do it.
It never works out like that. It doesn’t work out on both ends of it. It does not work out if you’re successful and you sell your company, because you’ll get bored out of your mind after two weeks on retirement. It doesn’t work out if the company is a failure and you regret the last 10 years spent for nothing. It doesn’t work out if it all works and you stay in the business because it never gets any easier. So you’re going to fail on all metrics if you just go, there’s only work and nothing else. And I didn’t want that. I wanted the happiness of flow. I understood that insight was true, but I wanted to do it in a way where I could sustain the journey for 40 or 50 years.
Lex Fridman
And there’s other interesting caveat that I’ve heard you say is that if you do exit and you sell your company, and you want to stay in, you want to do another company, that’s going to usually not be as fulfilling because really your first baby like…
And there’s other interesting caveat that I’ve heard you say is that if you do exit and you sell your company, and you want to stay in, you want to do another company, that’s going to usually not be as fulfilling because really your first baby like…
DHH
You can’t do it again or most people can’t do it again. A, because their second idea is not going to be as good as the first one. It is so rare to capture lightning in the bottle like we have, for example with Basecamp. I know this from experience because if you’re trying to build a lot of other businesses since, and some of them have been moderate successes, even good successes, none of them have been Basecamp. It’s really difficult to do that twice. But founders are arrogant pricks, including myself, and we like to think that, do you know what we succeeded in large part because we’re just awesome. We’re just so much better than everyone else. And in some ways that’s true some of the time, but you can also be really good at something that matters for a hot moment. That door is open, the door closes. Now you’re still good at the thing, but it doesn’t matter. No one cares.
You can’t do it again or most people can’t do it again. A, because their second idea is not going to be as good as the first one. It is so rare to capture lightning in the bottle like we have, for example with Basecamp. I know this from experience because if you’re trying to build a lot of other businesses since, and some of them have been moderate successes, even good successes, none of them have been Basecamp. It’s really difficult to do that twice. But founders are arrogant pricks, including myself, and we like to think that, do you know what we succeeded in large part because we’re just awesome. We’re just so much better than everyone else. And in some ways that’s true some of the time, but you can also be really good at something that matters for a hot moment. That door is open, the door closes. Now you’re still good at the thing, but it doesn’t matter. No one cares.
There’s that part of it. And then there’s the part of it that going back to experience things for the first time only happens the first time. You can’t do it again. I don’t know if I have it in me to go through the bullshit of the early days again. And I say bullshit in the sense of the most endearing sense. It’s all great to do it. I know too much. This is one of the reasons why whenever I’m asked the questions, if you could tell your younger self something that would really, what would you say to your younger self? I would fucking not say a thing. I would not rob my younger self of all the life experiences that I’ve been blessed with due to the ignorance of how the world works. Building up the wisdom about how the world works is a joy, and you got to build it one break at a time.
If you just handed all the results, it’s like, oh, should we watch your movie? Here’s how it ends. I don’t want to watch the movie now. You spoiled it. I don’t want you to spoil my business experience. I don’t want to spoil any of my ignorance. The greatest blessing half the time when you’re starting something new is A, you don’t know how hard it’s going to be. B, you don’t know what you don’t know. The adventure is to pay off. The responsibility is to pay off. This is something Jordan Peterson has really taught me to articulate. This notion that responsibility is actually key to meaning.
Man’s Search for Meaning, Viktor Frankl talks about this as well, that we can endure any hardship if there’s a reason why. Now, he talked about it in truly life altering concentration camp ways, but you can also apply at a smaller scale with less criticality of even just your daily life that all that hardship in building the original business that is responsibility you take upon yourself. The appeal, the reason you take that on you is in part because you don’t know fully what it entails. If you had known upfront, if I had known upfront how hard it would be, how much frustration there’d be along the way, if you just told me that in a narrative before I got started, I would’ve been like, eh, maybe I should just go get a job.
Hard work
Lex Fridman
You said so many smart things there. Just to pick one, it’s funny that sometimes the advice givers, the wisdom givers have gone through all the bullshit, and so there is a degree to which you want to make the mistake. So I think I would still give the advice of you want to have a stretch of your life, where you work too hard, including anything that fails. I don’t think you can learn the lessons why that’s a bad idea in any other way except by doing it. There is a degree, but of course you don’t…
You said so many smart things there. Just to pick one, it’s funny that sometimes the advice givers, the wisdom givers have gone through all the bullshit, and so there is a degree to which you want to make the mistake. So I think I would still give the advice of you want to have a stretch of your life, where you work too hard, including anything that fails. I don’t think you can learn the lessons why that’s a bad idea in any other way except by doing it. There is a degree, but of course you don’t…
DHH
I think you should stretch. Should you have to stretch for a decade? I’m not so sure.
I think you should stretch. Should you have to stretch for a decade? I’m not so sure.
Lex Fridman
Yeah. The decade thing is 20s is a special time.
Yeah. The decade thing is 20s is a special time.
DHH
It’s a lot to trade. You don’t get your 20s back, you don’t get your 30s back, you don’t get your 40s back. I would’ve regret it personally if I hadn’t done the other things I did in my 20s. If I hadn’t had the fun I had, if I hadn’t had the friends I had, if I hadn’t built up the hobbies that I did, if I hadn’t started driving race cars at an early enough age to actually get really good at it, if I had just gone all in on business because I would’ve got the same out in the end. This is something Derek Sivers really taught me, is he has this great essay about how when he went for a bike ride, he could go really hard all out and he could do the ride, I think, in whatever 19 minutes, or he could enjoy the ride, go 5% slower, do the ride in 21 minutes and realize there’s only two minutes apart.
It’s a lot to trade. You don’t get your 20s back, you don’t get your 30s back, you don’t get your 40s back. I would’ve regret it personally if I hadn’t done the other things I did in my 20s. If I hadn’t had the fun I had, if I hadn’t had the friends I had, if I hadn’t built up the hobbies that I did, if I hadn’t started driving race cars at an early enough age to actually get really good at it, if I had just gone all in on business because I would’ve got the same out in the end. This is something Derek Sivers really taught me, is he has this great essay about how when he went for a bike ride, he could go really hard all out and he could do the ride, I think, in whatever 19 minutes, or he could enjoy the ride, go 5% slower, do the ride in 21 minutes and realize there’s only two minutes apart.
Either I go all in all the time, there’s nothing else, I’m completely exhausted at the [inaudible 03:10:37] or I traveled the same distance and I arrived maybe two minutes later, but I got to enjoy the scenery, listen to the birds, smell the flowers. That journey is also valuable. Now, I say that while accepting and celebrating that if you want to be the best at one thing in the world, no, you have to sacrifice everything. You have to be obsessed with just that thing. There is no instant of someone who’s the best in the world at something who’s not completely obsessed. I didn’t need to be best at anything. This was a rare blessing of humility I had early on is like, do you know what? I am not that smart. I’m not that good. I’m not that talented. I can do interesting things by combining different aspects and elements that I know, but I’m not going to be the best at anything.
And that released me from this singular obsession with just going, I’m going to be the best programmer in the world. I know I’m not. I fucking failed at it twice before I even got how conditional it’s worked. I’m not smart enough to be the best at anything. I’m not dedicated enough to do that. That’s a bit of a blessing. And I think as a society, we have to straddle both celebrating peak excellence, which we do all the time, and celebrating the peak intensity of mission it takes to become that. And then also going like, do you know what? We don’t all need to be Michael Jordan. There’s only going to be one of those.
Lex Fridman
Well, we should say that there’s certain pursuits where a singular obsession is required. Basketball is one of them. By the way, probably racing. If you want to be the best at F-1 in the world-
Well, we should say that there’s certain pursuits where a singular obsession is required. Basketball is one of them. By the way, probably racing. If you want to be the best at F-1 in the world-
DHH
If you want to be Senna, you got to be a maniac.
If you want to be Senna, you got to be a maniac.
Lex Fridman
But I would argue that there’s most disciplines like programming allows if you want to be, quote, unquote, “the best,” whatever that means. I think that’s judged at the end of your life. And usually if you look at that path, it’s going to be a nonlinear one. You’re not going to look like the life of an Olympic athlete who’s singular focused. There’s going to be some acid there in the 20s or there’s going to be several detours, which should the true greats, there’s going to be detours, and sometimes they’re not going to be Steve Jobs’ asset type of situation. There’ll be just different companies you’ve worked for different careers or different efforts you allocated your life to, but it’s going to be nonlinear. It’s not going to be a singular focus.
But I would argue that there’s most disciplines like programming allows if you want to be, quote, unquote, “the best,” whatever that means. I think that’s judged at the end of your life. And usually if you look at that path, it’s going to be a nonlinear one. You’re not going to look like the life of an Olympic athlete who’s singular focused. There’s going to be some acid there in the 20s or there’s going to be several detours, which should the true greats, there’s going to be detours, and sometimes they’re not going to be Steve Jobs’ asset type of situation. There’ll be just different companies you’ve worked for different careers or different efforts you allocated your life to, but it’s going to be nonlinear. It’s not going to be a singular focus.
DHH
The way I think about this sometimes is I want a good bargain on learning. I can become in the top 5% of whatever I defined as good at something, much, much easier. Perhaps it’s 20 times easier, a hundred times easier to get into the top 5% than it is to get into the top 0.1%. That’s almost impossibly hard to get into that. But if I’m content just being at the top 5%, I could be at the top 5% on five things at once. I can get really good at writing. I can get decent at driving a race car. I can become pretty good at programming, I can run a company, I can have a family.
The way I think about this sometimes is I want a good bargain on learning. I can become in the top 5% of whatever I defined as good at something, much, much easier. Perhaps it’s 20 times easier, a hundred times easier to get into the top 5% than it is to get into the top 0.1%. That’s almost impossibly hard to get into that. But if I’m content just being at the top 5%, I could be at the top 5% on five things at once. I can get really good at writing. I can get decent at driving a race car. I can become pretty good at programming, I can run a company, I can have a family.
I can do a lot of things at the same time that gives me sort of that variety that almost was idealized. Karl Marx has this idea, oh, I’m going to fish in the morning and hammer in the evening and paint on the weekends, right? That there’s a sense for me at least, where his diagnosis of alienation was true, that just that tunnel vision, there’s just this one thing I’m just going to focus on that gives me a sense of alienation. I can’t stomach.
When I’m really deep on programming. And sometimes I go deep for weeks, maybe even in a few cases months, I have to come up for air and I have to go do something else like, all right, that was programming for this year. I’ve done my part, and I’m going to go off riding or annoy people on the internet or drive some race cars to do something else, and then I can do the programming thing with full intensity again next year.
Why we left the cloud
Lex Fridman
Speaking of annoying people on the internet, you got to explain to me this drama. Okay, so what is this guy that said, “Imagine losing to Jira, but boasting they have a couple million dollars per year.” So this had to do with this almost now a meme decision to leave the cloud. DHH left the cloud. I think that’s literally a meme, but it’s also a fascinating decision. Can you talk through the full saga of DHH leaves the cloud, leaving AWS, saving money, and I guess the case this person is making now?
Speaking of annoying people on the internet, you got to explain to me this drama. Okay, so what is this guy that said, “Imagine losing to Jira, but boasting they have a couple million dollars per year.” So this had to do with this almost now a meme decision to leave the cloud. DHH left the cloud. I think that’s literally a meme, but it’s also a fascinating decision. Can you talk through the full saga of DHH leaves the cloud, leaving AWS, saving money, and I guess the case this person is making now?
DHH
Is that we wasted our time optimizing a business that could have been a hundred times bigger if we’d just gone for the moon.
Is that we wasted our time optimizing a business that could have been a hundred times bigger if we’d just gone for the moon.
Lex Fridman
And for the moon includes?
And for the moon includes?
DHH
Venture Capital includes other things, not caring about cost.
Venture Capital includes other things, not caring about cost.
Lex Fridman
But also because AGI is around the corner, you should have been investing into AI, right? Is this just part of-
But also because AGI is around the corner, you should have been investing into AI, right? Is this just part of-
DHH
Sort of [inaudible 03:15:33]. I think it’s a bit of a muddy argument, but if we just take it at its peak ideal, which I actually think is a reasonable point, is that you can get myopically focused on counting pennies when you should be focused on getting pounds that I’ve optimized our spend on infrastructure by getting out of the cloud, and that took some time and I could have taken that time and spend it on making more features that would attract more customers or spend even more time with AI or done other things. Opportunity cost is real. I’m not denying that. I’m pushing back on the idea that for a company of our size saving $2 million a year on our infrastructure bill, which is about somewhere between 1/2 to 2/3 goes directly to the bottom line, which means its return to Jason or I as owners and our employees part of our profit sharing plan is totally worth doing.
Sort of [inaudible 03:15:33]. I think it’s a bit of a muddy argument, but if we just take it at its peak ideal, which I actually think is a reasonable point, is that you can get myopically focused on counting pennies when you should be focused on getting pounds that I’ve optimized our spend on infrastructure by getting out of the cloud, and that took some time and I could have taken that time and spend it on making more features that would attract more customers or spend even more time with AI or done other things. Opportunity cost is real. I’m not denying that. I’m pushing back on the idea that for a company of our size saving $2 million a year on our infrastructure bill, which is about somewhere between 1/2 to 2/3 goes directly to the bottom line, which means its return to Jason or I as owners and our employees part of our profit sharing plan is totally worth doing.
This idea that cost don’t matter is a very Silicon Valley way of thinking that I again understand at the scale of something maybe, but I also actually think it’s aesthetically unpleasing. I find an inefficient business as I find an inefficient program full of line noise to just be a splinter in my brain. I hate looking at an expense report and just seeing disproportionate waste. And when I was looking at our spend at 37signals a while back, a few years back, I saw bills that did not pass my smell test. I remembered how much we used to spend on infrastructure before the cloud, and I saw numbers I could not recognize in proportion to what we needed. The fact that computers had gotten so much faster over time, shouldn’t things be getting cheaper? Why are we spending more and more money servicing more customers? Yes, but with much faster computers. Moore’s law should be lowering the costs, and the opposite is happening. Why is that happening? And that started a journey of unwinding why the cloud isn’t as great as the deal as people like to think [inaudible 03:17:48].
AWS
Lex Fridman
Yeah. Can we look at the specifics just for people who don’t know the story and then generalize to what it means about the role of the cloud in the tech business? So the specifics is you were using AWS S3.
Yeah. Can we look at the specifics just for people who don’t know the story and then generalize to what it means about the role of the cloud in the tech business? So the specifics is you were using AWS S3.
DHH
We were using AWS for everything. Hey.com launches an entirely cloud app. It was completely on AWS for compute, for databases, for all of it. We were using all the systems as they’re best prescribed that we should. Our total cloud bill for Basecamp, our total spend with AWS was I think 3.2 million or 3.4 million at its peak. That’s kind of a lot of money, 3. 4 million. I mean we have a ton of users and customers, but still that just struck me as unreasonable. And the reason why it was so unreasonable was because I had the pitch for the cloud ringing in my ears, hey, this is going to be faster. This is going to be easier. This is going to be cheaper. Why are you trying to produce your own power? Do you have your own power plant? Why would you do that? Leave the computers to the hyperscalers. They’re much better at it anyway.
We were using AWS for everything. Hey.com launches an entirely cloud app. It was completely on AWS for compute, for databases, for all of it. We were using all the systems as they’re best prescribed that we should. Our total cloud bill for Basecamp, our total spend with AWS was I think 3.2 million or 3.4 million at its peak. That’s kind of a lot of money, 3. 4 million. I mean we have a ton of users and customers, but still that just struck me as unreasonable. And the reason why it was so unreasonable was because I had the pitch for the cloud ringing in my ears, hey, this is going to be faster. This is going to be easier. This is going to be cheaper. Why are you trying to produce your own power? Do you have your own power plant? Why would you do that? Leave the computers to the hyperscalers. They’re much better at it anyway.
I actually thought that was a compelling pitch. I bought in on that pitch for several years and thought, do you know what? I’m done ever owning a server again. We are just going to rent our capacity, and Amazon is going to be able to offer us services much cheaper than we could buy them themselves because they’re going to have these economies of scale. And I was thinking Jeff’s word ringing, “My competitor’s margin is my opportunity.” That was something he used to drive amazon.com with, that if he could just make 2% when the other guy was trying to make 4%, he would end up with all the money and on volume he would still win.
So I thought that was the operating ethos for AWS. It turns out that’s not true at all. AWS, by the way, operates at almost 40% margin. So just in that, there’s a clue that competitors are not able to do the competitive thing we like about capitalism, which is to lower costs and so forth. So the cloud pitch in my optics, it’s fundamentally false. It did not get easier, first of all. I don’t know if you’ve used AWS recently. It is hella complicated. If you think Linux is hard, you’ve never tried to set up IAM rules or access parameters or whatever for AWS.
Lex Fridman
AWS was always difficult. It was always [inaudible 03:20:15].
AWS was always difficult. It was always [inaudible 03:20:15].
DHH
Well, I think it’s gotten even more difficult, but yes, now some of that is, it’s difficult because it’s very capable and you have a bunch of capacity on tap, and there are reasons I don’t think they’re good enough to justify how complicated the whole jing-a-ma-jing has become. But what’s certainly true is that it’s no longer easier, it’s not easier to use AWS than it is to run your own machines, which we learned when we pulled out the cloud and didn’t hire a single extra person. Even though we operate all our own hardware, the team stayed exactly the same. So you have this three-way pitch, right? It’s going to be easier, it’s going to be cheaper. Certainly wasn’t cheaper. We’ve just proved that by cutting our spend on infrastructure by 1/2 to 2/3 and it’s going to be faster. The last bit was true, but way too many people overestimated the value of that speed.
Well, I think it’s gotten even more difficult, but yes, now some of that is, it’s difficult because it’s very capable and you have a bunch of capacity on tap, and there are reasons I don’t think they’re good enough to justify how complicated the whole jing-a-ma-jing has become. But what’s certainly true is that it’s no longer easier, it’s not easier to use AWS than it is to run your own machines, which we learned when we pulled out the cloud and didn’t hire a single extra person. Even though we operate all our own hardware, the team stayed exactly the same. So you have this three-way pitch, right? It’s going to be easier, it’s going to be cheaper. Certainly wasn’t cheaper. We’ve just proved that by cutting our spend on infrastructure by 1/2 to 2/3 and it’s going to be faster. The last bit was true, but way too many people overestimated the value of that speed.
If you need a thousand computers online in the next 15 minutes, nothing beats the cloud. How would you even procure that? If we just need another 20 servers, it’s going to take a week or two to get boxes shipped on pallets, delivered to a data center and unwrapped and racked and all that stuff. But how often do we need to do that? And how often do we need to do that if buying those servers is way, way cheaper so we get vastly more compute for the same amount of money? Could we just buy more servers and not even care about the fact that we’re not hyper-optimized on the compute utility, that we don’t have to use things like automatic scaling to figure things out because we have to reduce costs? Yes, we can. So we went through this journey over a realization in early 2023, when I had finally had enough with our bills.
I wanted to get rid of them. I wanted to spend less money. I wanted to keep more of the money ourselves. And in just over six months, we moved seven major applications out of the cloud in terms of compute, caching, databases to works onto our own servers. A glorious, beautiful new fleet bought from the king of servers, Michael Dell, who really, by the way, is another icon of mine. I saw he just celebrated 41 years in business. 41 years, this man has been selling awesome servers that we’ve been using for our entire existence. But anyway, these pallets arrive in a couple of weeks and we rack them up and get everything going, and we were out, at least with the compute part. We then had a long multi-year commitment to S3, because the only way to get decent pricing in the cloud, by the way, is not to buy on a day-to-day basis, not to rent on a day-to-day basis, but to bind yourself up to multi-year contracts. With compute, it’s often a year. That was in our case.
And with storage, this was four years. We signed a four-year contract to store our petabytes of customer files in the cloud to be able to get something just halfway decent affordable. So all of these projects came together to the sense that we’re now saving literally millions of dollars, projected about 10 million over five years. It’s always hard. How do you do the accounting exactly and TOC this, that and the other thing, but it’s millions of dollars. But it’s not just that. It’s also the fact that getting out of the cloud meant returning to more of an original idea of the internet. The internet was not the sign such that three computers should run everything. It was a distributed network such that the individual nodes could disappear and the whole thing would still carry on. DARPA designed this such that the Russians could take out Washington and they could still fight back from New York, that the entire communication infrastructure wouldn’t disappear because there was no hub and spoke. It was a network. I always found that an immensely beautiful vision, that you could have this glorious…
DHH
An immensely beautiful vision that you could have this glorious internet and no single node was in control of everything and we’ve returned to much more of a single node controlling everything idea with these hyperscalers. When US-East one, the main and original region for AWS goes offline, which has happened more than a few times over the years, seemingly a third of the internet is offline. That in itself is just an insult to DARPA’s design. It doesn’t detract from the fact that what AWS built was marvelous, I think the Cloud has moved so many things so far forward especially around virtualization, automation, setup, it’s all those giant leaps forward for system administration that’s allowing us now to be able to run things on-prem in a way that smells and feels much like the Cloud just at half the cost or less and with the autonomy and the satisfaction of owning hardware.
An immensely beautiful vision that you could have this glorious internet and no single node was in control of everything and we’ve returned to much more of a single node controlling everything idea with these hyperscalers. When US-East one, the main and original region for AWS goes offline, which has happened more than a few times over the years, seemingly a third of the internet is offline. That in itself is just an insult to DARPA’s design. It doesn’t detract from the fact that what AWS built was marvelous, I think the Cloud has moved so many things so far forward especially around virtualization, automation, setup, it’s all those giant leaps forward for system administration that’s allowing us now to be able to run things on-prem in a way that smells and feels much like the Cloud just at half the cost or less and with the autonomy and the satisfaction of owning hardware.
I don’t know the last time you looked at an actual server and took it apart and looked inside of, these things are gorgeous. I posted a couple of pictures of our racks out in the data center and people always go crazy for them because we’ve gotten so abstracted from what the underlying metal looks like in this Cloud age that most people have no idea. They have no idea how powerful a modern CPU is, they have no idea how much RAM you can fit into a 1U rack. Progress in computing has been really exciting especially, I’d say, in the last four to five years after TSMC, with Apple’s help, really pushed the envelope. We sat still there for a while while Intel was spinning their wheels going nowhere and then TSMC, with Apple propelling them, really move things forward and now servers are exciting again. You’re getting jumps year over year in the 15, 20% rather than the single digit we were stuck with for a while and that all means that owning your own hardware is a more feasible proposition than it’s ever been, that you need fewer machines to run ever more and that more people should do it because, as much as I love Jeff and Amazon, he doesn’t need another, whatever, 40% margin on all the tech stuff that I buy to run our business.
And this is just something I’ve been focused on both because of the ideology around honoring DARPA’s original design, the practicality of running our own hardware, seeing how fast we can push things with the latest machines and then saving the money. And that has all been so enjoyable to do but also so counterintuitive for a lot of people because it seemed, I think, for a lot of people in the industry, that we’d all decided that we were done buying computers, that that was something we would just delegate to AWS and Azure and Google Cloud, that we didn’t have to own these things anymore. So, I think there’s a little bit of whiplash for some people that, oh, I thought we agreed we were done with that and then along come us and say, “Ah, you know what? Maybe you should have a computer.”
Owning your own servers
Lex Fridman
Is there some pain points to running your own servers?
Is there some pain points to running your own servers?
DHH
Oh, plenty. There’s pain points to operating computers of all kind. Have you tried using a personal computer these days? Half the time, when my kids or my wife have a problem, I go like, “Have you tried turning it just off and on again?” Computers are inherently painful to humans. Owning your own computer though makes some of that pain worth it, there’s a responsibility that comes with actually owning the hardware that, to me, at least make the burden of operating that hardware seems slightly more enjoyable. Now, there are things you have to learn, certainly at our scale too. We’re not just buying a single computer and plugging it into an Ethernet, we have to have racks and racks of them and you’ve got to set it up with network cabling and there is some specialized expertise in that but it’s not like that expertise is building nuclear rockets, it’s not widely distributed.
Oh, plenty. There’s pain points to operating computers of all kind. Have you tried using a personal computer these days? Half the time, when my kids or my wife have a problem, I go like, “Have you tried turning it just off and on again?” Computers are inherently painful to humans. Owning your own computer though makes some of that pain worth it, there’s a responsibility that comes with actually owning the hardware that, to me, at least make the burden of operating that hardware seems slightly more enjoyable. Now, there are things you have to learn, certainly at our scale too. We’re not just buying a single computer and plugging it into an Ethernet, we have to have racks and racks of them and you’ve got to set it up with network cabling and there is some specialized expertise in that but it’s not like that expertise is building nuclear rockets, it’s not widely distributed.
Literally, the entire internet was built on people knowing how to plug in a computer to the internet. Oh, ethernet cable goes here, power cable goes here, let’s boot up Linux. That’s how everyone put anything online until 10, 12 years ago when the Cloud took over. So, the expertise is there and can be rediscovered, you too can learn how to operate a Linux computer.
Lex Fridman
Yeah. And when you get a bunch of them, there’s a bunch of flashing LEDs and it’s just so exciting.
Yeah. And when you get a bunch of them, there’s a bunch of flashing LEDs and it’s just so exciting.
DHH
Well, that’s beautiful, calming, amazing. Computers are really fun. This is actually something I’ve gotten into even deeper after we moved out of the Cloud. Now, my next tingle is that, if you could move out of the Cloud, can you also move out of the data center? Personal servers have gotten really scarily quick inefficient and personal internet connections rival what we connected data centers with just a decade or two ago. So, there’s a whole community around this concept of homelabbing which is essentially installing server hardware in your own apartment, connecting it to the internet and exposing that directly to the internet that harks back to those glorious days of the ’90s when people building for the internet would host the actual website on their actual computer in the closet.
Well, that’s beautiful, calming, amazing. Computers are really fun. This is actually something I’ve gotten into even deeper after we moved out of the Cloud. Now, my next tingle is that, if you could move out of the Cloud, can you also move out of the data center? Personal servers have gotten really scarily quick inefficient and personal internet connections rival what we connected data centers with just a decade or two ago. So, there’s a whole community around this concept of homelabbing which is essentially installing server hardware in your own apartment, connecting it to the internet and exposing that directly to the internet that harks back to those glorious days of the ’90s when people building for the internet would host the actual website on their actual computer in the closet.
And I’m pretty fired up about that, I’m doing a bunch of experiments, I’ve ordered a bunch of home servers for my own apartment. I marvel at the fact that I can get a five gigabit fiber connection now, I think. Do you know what five gigabit, that could have taken Basecamp to multiple millions of MRR in the way that back then I ran the whole business on a single box with 2004 technology and probably 100 megabit cable. The capacity we have access to, both in terms of compute and connectivity, is something that people haven’t readjusted to. And this happens sometimes in technology where progress sneaks up on you, this happened with SSDs, I love that by the way.
We designed so much of our technology and storage approach and database design around spinning metal disks that had certain seek rate properties and then we went to NVMe and SSDs and it took quite a while for people to realize that the systems had to be built fundamentally different now. That the difference between memory and disk was now far smaller when you weren’t spinning these metal plates around with a little head that had to read off them, you were essentially just dealing with another type of memory. I think we’re a little bit in that same phase when it comes to the capacity of new businesses to be launched literally out of your bedroom.
Lex Fridman
So, you can get pretty far with a large user base with homelabbing.
So, you can get pretty far with a large user base with homelabbing.
DHH
Absolutely.
Absolutely.
Lex Fridman
That’s exciting. That’s like the old school. That’s really exciting, right?
That’s exciting. That’s like the old school. That’s really exciting, right?
DHH
It’s bringing back the start-up in the garage in the literal physical sense of the word. Now, some of that is do we need to, you can get relatively cheap Cloud capacity if you don’t need very much.
It’s bringing back the start-up in the garage in the literal physical sense of the word. Now, some of that is do we need to, you can get relatively cheap Cloud capacity if you don’t need very much.
Lex Fridman
Hell, yes, we need to. The feeling of doing that by yourself, of seeing the LED lights in your own home, there’s nothing like that.
Hell, yes, we need to. The feeling of doing that by yourself, of seeing the LED lights in your own home, there’s nothing like that.
DHH
There’s just an aesthetic to it that I am completely in love with and I want to try to push on. Now, it’s not going to be the same thing as getting out of the Cloud? I’m not sure. Our exit out of the cloud was not the exit out of the data center. We basically just bought hardware, shipped it to a professionally managed data center that we didn’t even actually touch. This is the other misconception people have about moving out of the Cloud, that we have a bunch of people who are constantly driving to a data center somewhere to rack new boxes and change dead RAM, that’s not how things happen in the modern world at all. We have a company called Summit, previously Deft, that is what we call white gloves, they work in the data center.
There’s just an aesthetic to it that I am completely in love with and I want to try to push on. Now, it’s not going to be the same thing as getting out of the Cloud? I’m not sure. Our exit out of the cloud was not the exit out of the data center. We basically just bought hardware, shipped it to a professionally managed data center that we didn’t even actually touch. This is the other misconception people have about moving out of the Cloud, that we have a bunch of people who are constantly driving to a data center somewhere to rack new boxes and change dead RAM, that’s not how things happen in the modern world at all. We have a company called Summit, previously Deft, that is what we call white gloves, they work in the data center.
When we need something like, “Hey, Deft, can you go down and swap the dead SSD in box number six?” They do it and what we see is akin to what someone working with the Cloud would see. You see IP addresses coming online, you see drives coming online, it’s not that different but it is a whole heck of a lot cheaper when you are operating at our scale. And of course it is, of course it’s cheaper to own things if you need those things for years rather than it is to rent it. In no other domain would we confuse those two things that it’s cheaper to own for the long duration than it is to rent.
Lex Fridman
There is some gray area, I’ve gotten a chance to interact with the XAI team a bunch, I’m probably going back out there in Memphis to do a big podcast associated with the Grok release. And those folks, in order to achieve the speed of building up the cluster and to solve some of the novel aspects that have to do with the GPU, with the training, they have to be a little bit more hands-on, it’s less white glove.
There is some gray area, I’ve gotten a chance to interact with the XAI team a bunch, I’m probably going back out there in Memphis to do a big podcast associated with the Grok release. And those folks, in order to achieve the speed of building up the cluster and to solve some of the novel aspects that have to do with the GPU, with the training, they have to be a little bit more hands-on, it’s less white glove.
DHH
Oh, and I love that. They’re dealing with a frontier problem and they’re dealing with it not by renting a bunch of GPUs at a huge markup from their main competitor, they’re going like, “No, screw that. We’re going to put 100,000 GPUs in our own tents and build it in absolute record time.” So, I think, if anything, this is testament to the idea that owning hardware can give you an advantage both at the small scale, at the medium scale and at the pioneer levels of computing.
Oh, and I love that. They’re dealing with a frontier problem and they’re dealing with it not by renting a bunch of GPUs at a huge markup from their main competitor, they’re going like, “No, screw that. We’re going to put 100,000 GPUs in our own tents and build it in absolute record time.” So, I think, if anything, this is testament to the idea that owning hardware can give you an advantage both at the small scale, at the medium scale and at the pioneer levels of computing.
Elon Musk
Lex Fridman
By the way, speaking of teams, XAI, Tesla are large companies but all those folks … I don’t know what it is about. You said Jeff is really good at finding good people, at seeing strength in people. Elon is also extremely … I don’t know what that is. Actually, I’ve never actually seen, maybe you could speak to that, he’s good at finding greatness.
By the way, speaking of teams, XAI, Tesla are large companies but all those folks … I don’t know what it is about. You said Jeff is really good at finding good people, at seeing strength in people. Elon is also extremely … I don’t know what that is. Actually, I’ve never actually seen, maybe you could speak to that, he’s good at finding greatness.
DHH
I don’t think he’s finding as much as he’s attracting. He’s attracting the talent because of the audaciousness of his goals and his mission, the clarity by which he states it. He doesn’t have to go scour earth to find the best people, the best people come to him because he is, talking about Elon here, one of the singular most invigorating figures in both the same order of the universe here, haters and lovers. He’s having such an impact at such a scale that of course he’s got to have literally millions of people think he’s the worst person in the world and he’s also going to have millions of people thinking he’s the greatest gift to humanity. Depending on the day, I’m somewhere in between but I’m more on the greatest gift to humanity end of the scale than I’m on the other end of the scale. And I think that really inspires people in a way that we’ve almost forgotten that that level of audacity is so rare that, when we see it, we don’t fully know how to analyze it.
I don’t think he’s finding as much as he’s attracting. He’s attracting the talent because of the audaciousness of his goals and his mission, the clarity by which he states it. He doesn’t have to go scour earth to find the best people, the best people come to him because he is, talking about Elon here, one of the singular most invigorating figures in both the same order of the universe here, haters and lovers. He’s having such an impact at such a scale that of course he’s got to have literally millions of people think he’s the worst person in the world and he’s also going to have millions of people thinking he’s the greatest gift to humanity. Depending on the day, I’m somewhere in between but I’m more on the greatest gift to humanity end of the scale than I’m on the other end of the scale. And I think that really inspires people in a way that we’ve almost forgotten that that level of audacity is so rare that, when we see it, we don’t fully know how to analyze it.
We think of Elon as finding great talent, and I’m sure he is also good at that, but I also think that this beacon of the mission. We’re going to fucking Mars, we’re going to transform transportation into using electricity, we’re going to cover the earth in internet is so grand that there are days where I wake up and go like, “What the fuck am I doing with these to-do lists?” Like, “Jesus, should I go sign up for something like that?”
Lex Fridman
Yeah.
Yeah.
DHH
That sounds invigorating in a sense I can only imagine a Viking back in 1050 going, “Should we go to Normandy? You may die along the way but, oh, boy, does that sound like a journey and an adventure.”
That sounds invigorating in a sense I can only imagine a Viking back in 1050 going, “Should we go to Normandy? You may die along the way but, oh, boy, does that sound like a journey and an adventure.”
Lex Fridman
There’s a few components there, one definitely this bigger than life mission and really believing it. Every other sentence is about Mars, really believing it. It doesn’t really matter what anybody else, the criticism, anything, there’s a very singular focused big mission. But I think it also has to do a bunch of the other components like being able to hire well once the people, once wants to beacon attracts. And I’ve just seen people that don’t necessarily on paper have a resume with a track record, I’ve seen who now turned out to be legendary people who basically tosses on the ball of leadership, sees something in them and says and gives them the ownership and they run with it and that happens at every scale that, there’s a real meritocracy.
There’s a few components there, one definitely this bigger than life mission and really believing it. Every other sentence is about Mars, really believing it. It doesn’t really matter what anybody else, the criticism, anything, there’s a very singular focused big mission. But I think it also has to do a bunch of the other components like being able to hire well once the people, once wants to beacon attracts. And I’ve just seen people that don’t necessarily on paper have a resume with a track record, I’ve seen who now turned out to be legendary people who basically tosses on the ball of leadership, sees something in them and says and gives them the ownership and they run with it and that happens at every scale that, there’s a real meritocracy.
And there’s just you could see the flourishing of human intellect in these meetings, in these group getting together where the energy is palpable. It’s exciting for me to just be around that because there’s not many companies I’ve seen that in because, when a company becomes successful and larger, it somehow suffocates that energy that, I guess, you see in start-ups at the early stages but it’s cool to see it at a large company that’s actually able to achieve scale.
DHH
I think part of the secret there is that Elon actually knows things and, when you know things, you can evaluate the quality of work products. And when you can evaluate the quality of work products, you can very quickly tell who’s full of shit and who will actually take you to Mars and you can fire the people who is full of shit and you can bet on the people who’ll get us to Mars. That capacity to directly evaluate the competency of individuals is actually a little bit rare. It’s not widely distributed amongst managers, hiring managers. It’s not something you can easily delegate to people who are not very skilled at the work itself. And Elon obviously knows a lot about a lot and he can smell who knows stuff for real.
I think part of the secret there is that Elon actually knows things and, when you know things, you can evaluate the quality of work products. And when you can evaluate the quality of work products, you can very quickly tell who’s full of shit and who will actually take you to Mars and you can fire the people who is full of shit and you can bet on the people who’ll get us to Mars. That capacity to directly evaluate the competency of individuals is actually a little bit rare. It’s not widely distributed amongst managers, hiring managers. It’s not something you can easily delegate to people who are not very skilled at the work itself. And Elon obviously knows a lot about a lot and he can smell who knows stuff for real.
And is this, at our tiny scale, something I’ve tried to do in the same order where, when we hire programmers, for example, it’s going to be interesting now with AI as the new challenge, but up until this point, the main pivot point for getting hired was not your resume, was not the schooling you’ve had, it was not your grades, it was not your pedigree, it was how well you did on two things. A, your cover letter because I can only work with people remotely if they’re good writers. So, if you can’t pen a proper cover letter and can’t bother to put in the effort to write it specifically for us, you’re out. Two, you have to be able to program really well to the degree that I can look at your code and go like, “Yeah, I want to work with that person.” Not only I want to work with that person, I want to work on that person’s code when I have to see it again in five years to fix some damn bug.
So, we’re going to give you a programming test that simulates the way we work for real and we’re going to see how you do. And I’ve been surprised time and again where I thought for sure this candidate is a shoe-in, they sound just right, the CV is just right and then you see the code getting turned in and I’m like, “No way. No way are we hiring this person.” And the other way has been true as well. I’d go like, “I don’t know about this guy or this woman Eeh, I don’t know.” and then they turn in their code stuff and I’m like, “Holy shit, can that person be on my team tomorrow preferably?” The capacity to evaluate work product is a superpower when it comes to hiring.
Lex Fridman
There’s a step that I’ve seen Elon do really well which is be able to show up and say this can be done simpler.
There’s a step that I’ve seen Elon do really well which is be able to show up and say this can be done simpler.
DHH
Yes.
Yes.
Lex Fridman
But he knows what he’s talking about and then the engineer, because Elon knows enough, the engineer’s first reaction, you can tell, it’s almost like rolling your eyes if your parent tells you something, this is not, no, I’ve been working on this for a month, you don’t … But then, when you have that conversation a little more, you realize, no, it can be done simpler, find the way. So, there’s a good … When two engineers are talking, one might not have perfect information but if the senior engineer has good instinct that’s been battle earned, then you can say simplify and it actually will result in simplification.
But he knows what he’s talking about and then the engineer, because Elon knows enough, the engineer’s first reaction, you can tell, it’s almost like rolling your eyes if your parent tells you something, this is not, no, I’ve been working on this for a month, you don’t … But then, when you have that conversation a little more, you realize, no, it can be done simpler, find the way. So, there’s a good … When two engineers are talking, one might not have perfect information but if the senior engineer has good instinct that’s been battle earned, then you can say simplify and it actually will result in simplification.
DHH
And I think this is the hallmark of the true greats that they, not only have the insight into what’s required to do the work, but they also have the transcendent vision to go beyond what the engineer would do, the programmer would do. I think if we are looking at these rarities, obviously, the myth of Steve Jobs was also this. Even though perhaps he was less technical than Elon is in many ways, he had the same capacity to show up to a product team and really challenge them to look harder for the simplification or for making things greater in a way that would garner disbelief from the people who are supposed to do it. This guy is full of, this is crazy, we can never … And then, two months later, this.
And I think this is the hallmark of the true greats that they, not only have the insight into what’s required to do the work, but they also have the transcendent vision to go beyond what the engineer would do, the programmer would do. I think if we are looking at these rarities, obviously, the myth of Steve Jobs was also this. Even though perhaps he was less technical than Elon is in many ways, he had the same capacity to show up to a product team and really challenge them to look harder for the simplification or for making things greater in a way that would garner disbelief from the people who are supposed to do it. This guy is full of, this is crazy, we can never … And then, two months later, this.
So, there is something of this where you need the vision, you need it anchored by the reality of knowing enough about what’s possible, knowing enough about physics, knowing enough about software that you’re not just building bullshit. There are plenty of people who can tell a group of engineers, “No, just do it faster,” but that’s not a skill, it’s got to be anchored in something real. But it’s also got to be anchored in, it’s a tired word, but a passion for the outcome to a degree where you get personally insulted if a bad job is done. This is what I’ve been writing about lately with Apple, they’ve lost that asshole who would show up and tell engineers that what they did was not good enough in ways that would actually perhaps make them feel a little small in the moment but would spark that zest to really fix it. Now they have a logistics person who’s very good at sourcing components and lining up production Gantt charts but you’re not getting that magic.
Now, what’s interesting with that whole scenario was I actually thought how well Tim Cook ran things and has run things at Apple for so long that maybe we were wrong, maybe we were wrong about the criticality of Steve Jobs to the whole mission, maybe you could get away with not having it. I think the bill was just going to come later and now it has, Apple is failing in all these ways that someone who would blow up Steve’s ghost and really exalt him would say like, “See, this is what’s happening now.” So, the other thing here too, of course, is it’s impossible to divorce your perception of what’s a critical component of the system and the messy reality of a million different moving parts in the reality of life and you should be skeptical about your own analysis and your own thesis at all time.
Apple
Lex Fridman
Since you mentioned Apple, I have to ask, somebody in the internet submitted the question. Does DHH still hate Apple? I believe the question is. So, there was a time when Basecamp went to war with Apple over the 30%, can you tell the saga of that battle?
Since you mentioned Apple, I have to ask, somebody in the internet submitted the question. Does DHH still hate Apple? I believe the question is. So, there was a time when Basecamp went to war with Apple over the 30%, can you tell the saga of that battle?
DHH
Yes, but first I’ll tell you how I fell in love with Apple which was all the way back in also early 2000s. When Microsoft was dominating the industry in a way we now see Apple and Google dominate mobile phones, Microsoft was just everything when it came to personal computers and I really did not like the Microsoft of the ’90s. The Microsoft of the ’90s was the cut off the air supply to Netscape kind of characters, was the Bill Gates sitting defiant in an interview with the DOJ asking about what the definition of what is and just overall unpleasant, I think. You can have respect for what was achieved but I certainly didn’t like it. And as we’ve talked about, I came begrudgingly to the PC after Commodore fell apart and I couldn’t continue to use the Amiga so I already had a bit of a bone to pick with PCs just over the fact that I love my Amiga so much.
Yes, but first I’ll tell you how I fell in love with Apple which was all the way back in also early 2000s. When Microsoft was dominating the industry in a way we now see Apple and Google dominate mobile phones, Microsoft was just everything when it came to personal computers and I really did not like the Microsoft of the ’90s. The Microsoft of the ’90s was the cut off the air supply to Netscape kind of characters, was the Bill Gates sitting defiant in an interview with the DOJ asking about what the definition of what is and just overall unpleasant, I think. You can have respect for what was achieved but I certainly didn’t like it. And as we’ve talked about, I came begrudgingly to the PC after Commodore fell apart and I couldn’t continue to use the Amiga so I already had a bit of a bone to pick with PCs just over the fact that I love my Amiga so much.
But then in the early 2000s, Apple emerged as a credible alternative because they bet the new generation of Macs on Unix underpinnings and that allowed me to escape from Microsoft and suddenly I became one of the biggest boosters of Apple. I was in my graduating class at the Copenhagen Business School, I started with the first white iBook, first person using Mac and, by the time we were done in graduating, I had basically converted half the class to using Apple computers because I would evangelize them so hard and demonstrate them and do all the things that a super fan would do and I continued that work over many years.
Jason and I actually in, I think, 2004, 2005, did an ad for Apple that they posted on the developer side where we were all about Apple is so integral to everything that we do and we look up to them and we are inspired by them. And that love relationship actually continued for a very long time, I basically just became a Mac person for 20 years. I didn’t even care about looking at PCs, it seemed irrelevant to me whatever Microsoft was doing which felt like such a relief because in the ’90s I felt like I couldn’t escape Microsoft and suddenly I had found my escape. And now I was with Apple and it was glorious and they shared so many of my sensibilities and my aesthetics and they kept pushing the envelope and there was so much to be proud of, so much to look up to.
And then that started to change with the iPhone which is weird because the iPhone is what made modern Apple. It’s what I lined up in 2007 together with Jason for five hours to stand in the line to buy a first generation product where Apple staff would clap at you when you walked out the store, I don’t know if you remember that. It was a whole ceremony and it was part of that myth and mystique and awe of Apple. So, I wasn’t in the market for other computers, I wasn’t in the market for other computer ideas, I thought perhaps I’d be with the Mac until the end of days. But as Apple discovered the gold mine it is to operate a toll booth where you don’t have to innovate, where you don’t actually even have to make anything, where you can just take 30% of other people’s business, there was a rot that crept in to the foundation of Apple and that started all the way back from the initial launch of the app store.
But I don’t think we saw at the time, I didn’t see at the time, just how critical the mobile phone would become to computing in general. I thought when the iPhone came out that like, “Oh, it’s like a mobile phone, I’ve had a mobile phone since the early ’90s.” Well, it wasn’t a mobile phone, it was a mobile computer and, even more than that, it was the most important computer or it would become the most important computer for most people around the world which meant that, if you like to make software and wanted to sell it to people, you had to go through that computer. And if going through that computer meant going through Apple’s toll booth and not just having to ask them permission which in and of itself was just an indignity. When you’re used to the internet where you don’t have to ask anyone for permission about anything, you buy a domain and you launch a business and, if customers show up, boom, you’re a success and, if they don’t, well, you’re a failure.
Now, suddenly, before you could even launch, you’d have to ask Apple for permission? That always sat wrong with me. But it wasn’t until we launched HEY in 2001 that I saw the full extent of the rot that has snuck into Apple’s apple.
Lex Fridman
For people who don’t know and we’ll talk about it, HEY is this amazing attempt to solve the email problem.
For people who don’t know and we’ll talk about it, HEY is this amazing attempt to solve the email problem.
DHH
Yes. I like to pitch it as what Gmail would’ve been with 20 years of lessons applied in a way where they could actually ship. Gmail was incredible when it launched in 2004 and it still is a great product but it’s also trapped in its initial success. You can’t redesign Gmail today, it just has way too many users. So, if you want fresh thinking on email, I wanted fresh thinking on email, I needed to build my own email system. And not just my own email client, that’s what a lot of people have done over the years, they build a client for Gmail but you’re severely constrained if you don’t control the email server as well. If you really want to move the ball forward with email, you have to control both the server and the client and that was the audacious mission we set out to do with HEY.
Yes. I like to pitch it as what Gmail would’ve been with 20 years of lessons applied in a way where they could actually ship. Gmail was incredible when it launched in 2004 and it still is a great product but it’s also trapped in its initial success. You can’t redesign Gmail today, it just has way too many users. So, if you want fresh thinking on email, I wanted fresh thinking on email, I needed to build my own email system. And not just my own email client, that’s what a lot of people have done over the years, they build a client for Gmail but you’re severely constrained if you don’t control the email server as well. If you really want to move the ball forward with email, you have to control both the server and the client and that was the audacious mission we set out to do with HEY.
And that was what’s funny, I thought our main obstacle here would be Gmail, it’s the 800-pound gorilla in the email space. Something like 70% of all email in the US is sent through Gmail, I think their world rates are probably in that neighborhood as well, they’re just absolutely huge. And trying to attack an enormous established competitor like that who’s so, actually, still loved by plenty of people and it’s free seems like a suicide mission. And it was only a mission we signed up for because we had grown ambitious enough after making Basecamp for 20 years that we thought we could tackle that problem. So, I thought, hey, this is dumb, I would not advise anyone to go head to head with Gmail, that seems like a suicide mission. We’re going to try anyway because, you know what, if we fail, it’s going to be fine, we’re just going to build a better email experience for me and Jason and the people at the company and our cat and that’ll be okay because we can afford to do so.
But when we got ready to launch after spending two years building this product, millions of dollars in investment to it, we obviously needed mobile apps. You’re not going to be a serious contender with email if you’re not on a mobile phone and you need to be there with a native client. So, we had built a great native client for both iOS and for Android and, as we were getting ready to launch, we submitted both of them to the app stores, got both of them approved on, I think, Friday afternoon for the iOS app and we then went live on Monday and we were so excited. Hey, world, we’ve been working on this new thing, I’d love for you to check it out. And of course, as with anything when you launch a new product, there are some bugs so we quickly found a few in the iOS client and submitted a new build to Apple. Hey, here’s our bug fixes, can you please update and that’s when all hell broke loose.
Not only were they not going to approve our update, they said, “Oh, wait a minute, we gave you permission to be in the app store but, I’m sorry, that was a mistake. We see that you’re not using our in-app payment system which means that we don’t get 30% of your business, you will have to rectify that or you can’t be in the app store.” And first I thought, well, it got approved already, we’re running on the same model we’ve run Basecamp on in the app store for a decade, if you’re not signing up through the app and we’re signing up our own customers on our own website and they’re just going to the app store to download their companion app, we’re going to be fine. That was the truth, right? That was why I never got so fired up about the app store. Even as Apple started tightening the screws, it was like, “My business was okay.”
Now, suddenly, my business wasn’t okay. Apple was willing to destroy HEY if we did not agree to give them 30% of all the signups that came through the iOS app. And it wasn’t just about the 30%, it was also about splitting and not longer having a direct relationship with our customers. When you sell an app in the app store, you’re not selling an app to a customer, you’re selling an app to inventory at Apple and then Apple sells an app to that customer. That customer has a purchasing relationship with Apple so, if you want to give discounts or refunds or whatever, it’s complete hell. If you want to easily support multi-platform, that’s complete hell. If someone signs up for HEY on their iPhone and they want to switch to Android but, that billing relationship, it’s tied to Apple, it’s complete hell. For a million reasons, I did not want to hand my business over to Apple, I did not want to hand 30% of our revenue over to Apple so we decided to do something that seemingly Apple had never heard before, we said no.
We’re not going to add the in-app payment. I don’t care if you’re threatening us, this is not fair, this is not reasonable, please approve. And of course they didn’t and it escalated and, after a couple of days, we realized, you know what, this isn’t a mistake, this isn’t going away, we’re going to be dead if they go through with this. If we’re not going to yield and give them the 30%, they’re going to kick us off unless we make such a racket, such noise that they will regret it and that’s exactly what then happened. We were blessed by the fact that we launched HEY one week before the WWDC, the Worldwide Developer Conference, where Apple loves to get up on stage and harp on how much they do for developers, how much they love them and why you should build their new devices and so on and so forth.
And then we also just happened to have a platform on the internet which is very convenient when you need to go to war with a $3 trillion company. So, I started kicking and screaming-
Lex Fridman
Oh, boy.
Oh, boy.
DHH
… and essentially turning it up to 11 in terms of the fight and going public with our denial to be in the app store. And that turned into a prolonged two-week battle with Apple that essentially ended in the best possible outcome we could have gotten as David fighting Goliath which was a bit of a truce. We wouldn’t hand 30% over to Apple, they wouldn’t kick us out of the app store but we had to build some bullshit dummy accounts such that the app did something when you downloaded it. That was a rule that Phil Schiller seemingly made up on the fly when pressed for the fifth time by the media about why we couldn’t be in the app store when a million other companion apps could. But we just happened to be able to create so much pain and noise for Apple that it was easier for them to just let us be than to keep on fighting.
… and essentially turning it up to 11 in terms of the fight and going public with our denial to be in the app store. And that turned into a prolonged two-week battle with Apple that essentially ended in the best possible outcome we could have gotten as David fighting Goliath which was a bit of a truce. We wouldn’t hand 30% over to Apple, they wouldn’t kick us out of the app store but we had to build some bullshit dummy accounts such that the app did something when you downloaded it. That was a rule that Phil Schiller seemingly made up on the fly when pressed for the fifth time by the media about why we couldn’t be in the app store when a million other companion apps could. But we just happened to be able to create so much pain and noise for Apple that it was easier for them to just let us be than to keep on fighting.
Tim Sweeney
Lex Fridman
What do you think about Tim Sweeney’s victory with Epic over Apple?
What do you think about Tim Sweeney’s victory with Epic over Apple?
DHH
I think it is incredible and the entire developer ecosystem, not just on iOS but on Android as well, owe Epic, Tim Sweeney and Mark Rein, an enormous debt of gratitude for taking on the only battle that has ever inflicted a serious wound on Apple in this entire sordid campaign of monopoly enforcement and that is Epic’s fight versus them. Tim recently revealed that it has cost well over $100 million in legal fees to carry on this battle against Apple. We, for a hot moment, considered suing Apple when they were threatening to kick us out. We shopped the case around with a few law firms and perhaps, of course, they would tell us you have a good case, they’re trying to sell a product here, but they would also tell us it’s going to cost a minimum of $10 million and it’s going to take five to seven years through all the appeals.
I think it is incredible and the entire developer ecosystem, not just on iOS but on Android as well, owe Epic, Tim Sweeney and Mark Rein, an enormous debt of gratitude for taking on the only battle that has ever inflicted a serious wound on Apple in this entire sordid campaign of monopoly enforcement and that is Epic’s fight versus them. Tim recently revealed that it has cost well over $100 million in legal fees to carry on this battle against Apple. We, for a hot moment, considered suing Apple when they were threatening to kick us out. We shopped the case around with a few law firms and perhaps, of course, they would tell us you have a good case, they’re trying to sell a product here, but they would also tell us it’s going to cost a minimum of $10 million and it’s going to take five to seven years through all the appeals.
Now, we now learn the actual price tag was 10 times higher, right? Epic spend over 100 million. It would’ve destroyed us to take on Apple in the legal realm, only a company like Epic could do it. And only a company run by founders like Tim, like Mark could risk the business in the way that they did, the audacity they had to provoke the fight in the first place, which I thought was just incredible, and to stick with it for the long term. No board would’ve signed off on this lawsuit to a professional CEO, no freaking way. So, the fact that they’ve been able to beat Apple in also the most hilarious way possible, I think it’s just incredible. Because, remember, their first victory in the case was actually not much of a victory, there were about 11 counts in the trial, Apple basically won 10 of them and the judge awarded Epic this one little win that Apple couldn’t tell them not to link up to the internet to be able to do the payment processing.
So, they want this one little thing and, Apple, instead of just taking the 10 out of 11 wins and going, fine, you can have your little links but all these other rules stay in place decided to essentially commit criminal contempt of court as they’ve now been referred to for prosecution and angered the judge to such a degree that the rule of law in the US now is that you can launch an app in the app store and you don’t have to use in-app payment but you can have a direct billing relationship with a customer if you just link out to the open internet when you take the credit card and then hop back into the app. And we owe all of that to Tim and Mark, we owe all of that to Epic. We’re going to launch new apps any minute now, I hope, actually, in the next week to take advantage of this that revamp the HEY app so that people who download the HEY app off the Apple app store can sign up in the app and can then use the web to put in their credit card so we don’t-
DHH
And can then use the web to put in their credit cards so we don’t have to pay 30% of the time. We have a direct billing relationship and such that they can take that subscription to Android, to PCs, whatever, without any hassle. And we have Tim and Mark to thank for it.
And can then use the web to put in their credit cards so we don’t have to pay 30% of the time. We have a direct billing relationship and such that they can take that subscription to Android, to PCs, whatever, without any hassle. And we have Tim and Mark to thank for it.
Lex Fridman
Yeah, Tim … I mean, like you said, founders, but also specific kind of founders because I think … Maybe you can educate me on this, but Tim is somebody who maintains to this day the unreasonableness of principles.
Yeah, Tim … I mean, like you said, founders, but also specific kind of founders because I think … Maybe you can educate me on this, but Tim is somebody who maintains to this day the unreasonableness of principles.
DHH
Yes. That’s what I love.
Yes. That’s what I love.
Lex Fridman
I think sometimes maybe even with founders, you can get worn down. It’s a large company.
I think sometimes maybe even with founders, you can get worn down. It’s a large company.
DHH
Yes.
Yes.
Lex Fridman
There’s a lot of smart “people” around you, lawyers, and just whispering your ear over time, and you’re like, “Well, just be reasonable.” This is a different thing to maintain … I mean, Steve Jobs did this. Still are the asshole.
There’s a lot of smart “people” around you, lawyers, and just whispering your ear over time, and you’re like, “Well, just be reasonable.” This is a different thing to maintain … I mean, Steve Jobs did this. Still are the asshole.
DHH
Yes.
Yes.
Lex Fridman
Who says, “No, this whole company, I’ll sink this whole fucking company over this.”
Who says, “No, this whole company, I’ll sink this whole fucking company over this.”
DHH
That’s the exact language, basically, I used in our original campaign. I will burn this business down before I hand over 30% of it to Apple. And that indignation, that actual rage, is something I try to be a little careful about tapping into because it is a little bit of a volatile compound because, I mean, I have a bunch of employees, we have a bunch of customers. It would be pretty sad if the journey of 37 singles after 25 years would come to an end because Apple would burn us down or I would burn the business down over this fight with Apple. But I think you also need that level of conviction to be able to even drive the day-to-day decisions.
That’s the exact language, basically, I used in our original campaign. I will burn this business down before I hand over 30% of it to Apple. And that indignation, that actual rage, is something I try to be a little careful about tapping into because it is a little bit of a volatile compound because, I mean, I have a bunch of employees, we have a bunch of customers. It would be pretty sad if the journey of 37 singles after 25 years would come to an end because Apple would burn us down or I would burn the business down over this fight with Apple. But I think you also need that level of conviction to be able to even drive the day-to-day decisions.
One of the other Apple examples … And I know we’re racking on Apple a little bit here, and I don’t actually hate them. I really don’t. I am tremendously disappointed at the squandered relationship that did not need to be sold away for so little. Now I understand that the app store toll booth is actually a pretty big business. It’s multiple billions, but Apple is a trillion-dollar company. And I think in the lens of history, this is going to come off as a tremendous mistake, and I think it’s already coming off as a tremendous mistake. The flop that was the Vision Pro was partly because Apple had pissed off every other developer.
No one was eager to come build the kind of experiences for their new hardware that would perhaps have made it a success. So when you’re on top and you have all the cards, you can dilute yourself into thinking that you can dictate all terms at all times and there are no long-term consequences. Apple is learning, finally, the fact that there are long-term consequences and that developers actually are important to Apple’s business and the relationship is not entirely one-sided. We don’t owe our existence to Apple and Apple alone. We’ve built our own customer bases.
Apple has been beneficial to the industry. I’m glad the iPhone exists, da da da da. It’s not that it doesn’t go both ways, but Apple wants it only one way. And I think that is a mistake and it’s a mistake that was avoidable and, A, that’s disappointing. Certainly disappointing for me. I’ve literally spent 20 years evangelizing this shit, right? I’ve spent so much money buying Apple hardware, excusing a bunch of things they’ve done over the years, and then for what? For the fact that you wanted 30% of something that I created in the most unreasonable way possible. Couldn’t we have found a better way to do this? I think they’re going to get forced to do a better way. But did you also have to go through the indignity of having a criminal contempt charge against you getting referred to prosecution? It just seems so beneath Apple, but it also seems so in line with what happens to huge companies who are run by “professional managers” rather than founders and unreasonable people.
Lex Fridman
Well, we should probably also say that the thing you love about Apple, the great spirit of Apple, I think, still persists and there’s a case to be made that this 30% thing’s a particular slice of a company, not a defining aspect of the company and that Apple is still on top in the hardware that it makes and a lot of things that it makes. And this is … That could be just a hiccup in a long story of a great company that does a lot of awesome stuff for humanity. So Apple is a truly special company. We mentioned Amazon. There is no company like Apple.
Well, we should probably also say that the thing you love about Apple, the great spirit of Apple, I think, still persists and there’s a case to be made that this 30% thing’s a particular slice of a company, not a defining aspect of the company and that Apple is still on top in the hardware that it makes and a lot of things that it makes. And this is … That could be just a hiccup in a long story of a great company that does a lot of awesome stuff for humanity. So Apple is a truly special company. We mentioned Amazon. There is no company like Apple.
DHH
I agree. This is why the disappointment is all greater.
I agree. This is why the disappointment is all greater.
Lex Fridman
Yeah, yeah.
Yeah, yeah.
DHH
Because we had such high aspirations and expectations to Apple, that they were the shining city on the hill and they were guiding the industry in a million positive ways. I think, as we talked about earlier, hardware is exciting again in large part because Apple bought PA Semi and pursued a against all odds mission to get ARM up to the level it is today. And we have these incredible M chips now because of it. And the design sensibilities that Apple bring to the table are unparalleled. No one has taste certainly at the hardware level like Apple does. Even at the software level, I’d say there’s a lot of taste left in Apple, but there’s also some real sour taste now.
Because we had such high aspirations and expectations to Apple, that they were the shining city on the hill and they were guiding the industry in a million positive ways. I think, as we talked about earlier, hardware is exciting again in large part because Apple bought PA Semi and pursued a against all odds mission to get ARM up to the level it is today. And we have these incredible M chips now because of it. And the design sensibilities that Apple bring to the table are unparalleled. No one has taste certainly at the hardware level like Apple does. Even at the software level, I’d say there’s a lot of taste left in Apple, but there’s also some real sour taste now.
So they have to wash that off first, I think, before they find their way back. But Apple’s been in a mora as before. I mean, Wozniak and Steve Jobs started this thing in the garage, has great success with the Apple II. He hands the company over to a sugar drink salesman who tanks the company into the ’90s. He doesn’t learn the lesson, spends the next 20 years building up this amazing company, then hands the company over again to a logistics person who presumably had more redeeming qualities than the first guy who put in charge, but still ends up leading the company astray.
Now this is the norm. The norm is that great companies don’t last forever. In the long arc of history, almost no company lasts forever. There are very few companies around that was here a hundred years ago, even fewer 200 years ago, and virtually nothing that are a thousand years old outside of a handful of Japanese swords makers or something like that, right? So you can get deluded into thinking that something is forever when you’re in the moment and they seem so large.
Apple could absolutely stumble and I think they have more reason to stumble now than ever. They’re behind on AI, terribly behind. Their software quality is faltering in a bunch of ways. The competition is catching up on the hardware game in part because TSMC is not an Apple subsidiary, but a foundry that services AMD and Nvidia, and others who were now able to use the same kind of advanced processes. This is something I learned after not looking at PC hardware for the longest time, that holy smokes, AMD actually makes CPUs that are just as fast, if not faster, than Apple’s. They’re not quite as efficient yet because ARM has some fundamental efficiencies over x86, but they’re still pretty good.
So Apple should have reason to worry. Apple shareholders should have reason to be concerned, not just about all these stumbles, but also by the fact that Apple is run by old people. Apple’s board has an average age of, I think, 75. Their entire executive team is above 60. Now, that sounds horribly ageist. And in some ways, it a little bit is, in the same way I’m ageist against myself. I’m 45 now. And I have to force myself to really get into AI because it is such a paradigm shift and a lot of people, when they reach a certain age, are just happy to stay with what they know. They don’t want to go back to being a beginner. They don’t want to go back to having to relearn everything. And I think this is a little hard for me at 45. How the hell do you do that at 75?
Fatherhood
Lex Fridman
I have to come back to it. You mentioned it earlier, you’re a parent. Can you speak to the impact that becoming a father has had on your life?
I have to come back to it. You mentioned it earlier, you’re a parent. Can you speak to the impact that becoming a father has had on your life?
DHH
I think what’s funny about fatherhood is that, for me, I wasn’t even sure it’s something I wanted. It took meeting the right woman and letting her convince me that this was the right idea before we even got started. I didn’t have starting my own family on the list of priorities in my late 20s or even early 30s. It was really the impetus of meeting my wife, Jamie, and her telling me, “This is what I want. I want to have a family, I want to get married, I want to have kids. I want to have three.” And me going for a second like, “Whoa, whoa, whoa.” And then, “All right, let’s do it.” And I think that’s the kind of happy accident where some parts of my life have been very driven, where I knew exactly what I wanted and how to push forward to it, and what the payoff was going to be. But when it comes to having a family, that always felt like a very fuzzy, abstract idea that, sure, someday maybe. And then it became very concrete because I met a woman who knew what she wanted.
I think what’s funny about fatherhood is that, for me, I wasn’t even sure it’s something I wanted. It took meeting the right woman and letting her convince me that this was the right idea before we even got started. I didn’t have starting my own family on the list of priorities in my late 20s or even early 30s. It was really the impetus of meeting my wife, Jamie, and her telling me, “This is what I want. I want to have a family, I want to get married, I want to have kids. I want to have three.” And me going for a second like, “Whoa, whoa, whoa.” And then, “All right, let’s do it.” And I think that’s the kind of happy accident where some parts of my life have been very driven, where I knew exactly what I wanted and how to push forward to it, and what the payoff was going to be. But when it comes to having a family, that always felt like a very fuzzy, abstract idea that, sure, someday maybe. And then it became very concrete because I met a woman who knew what she wanted.
And looking back on it now, it almost seems crazy, like there’s this fork in the road of reality where if that hadn’t happened and I had been sitting here now not being a father, not having a family, the level of regret knowing what I know now about the joys of having that family would have been existential. I don’t know if they would have been devastating. I think men have a little bit of a longer window to pursue these things than women do. There are just certain biological facts, but ending up with the family I have now, ending up with my three boys, have been just a transformative experience in the sense that here’s something that turned out to be the most important thing. And it was an open secret. Not even an open secret. It was an open truth through all of history.
You listen to anyone who’s ever had children, they will all say, “My children are the most important to me.” Yet somehow that wisdom couldn’t sink in until you were in the situation yourself. I find those truths fascinating when you can’t actually relay them with words. I can tell you, “Hey, Lex, what are you doing? Get a wife, make some kids, get a move on it.” And these are just words. They’re not communicating the gravity of what it actually feels to go through the experience. And you can’t really learn it without going through it.
Now, of course, you can be influenced and whatever, we can all help contribute and little sparks and little seeds can grow in your mind about it, but it still has to happen. And now that I am in this situation and just the sheer joy on a daily basis where you think your level of life satisfaction is on a scale of one to 10.
Lex Fridman
Yeah.
Yeah.
DHH
And then the satisfaction of seeing your children understand something, accomplish something, learn something, do something, just be, just goes like, oh my God, the scale doesn’t go from one to 10, it goes from one to a hundred. And I’ve been playing down here in the one to 10 range all this time and there’s a one to a hundred. That has been humbling in a way that is impactful in and of itself. This whole idea that I thought I had a fair understanding of the boundaries of life in my early 30s, like what is this about? I mean, I’ve been on this earth long enough now here to know something.
And then the satisfaction of seeing your children understand something, accomplish something, learn something, do something, just be, just goes like, oh my God, the scale doesn’t go from one to 10, it goes from one to a hundred. And I’ve been playing down here in the one to 10 range all this time and there’s a one to a hundred. That has been humbling in a way that is impactful in and of itself. This whole idea that I thought I had a fair understanding of the boundaries of life in my early 30s, like what is this about? I mean, I’ve been on this earth long enough now here to know something.
And you realize, “I don’t know.” I did not know. I did not know that the scale was much broader. And I’ve often talked about the joys of having kids and just seeing your own DNA, which is remarkable to me because literally that’s been the pursuit of humans since the dawn of time. I am here today because, whatever, 30,000 years ago, some Neanderthal had the same realization that I should procreate and I should continue my bloodline. And that all amounts to me sitting here now, but it didn’t become a practical reality to me before meeting the right woman. And I think that that’s sometimes not part of the conversation enough that there’s something broken at the moment about how people pair up in the western world.
Lex Fridman
Yeah.
Yeah.
DHH
And it’s at the source of why we’re not having enough children because there’s not enough couples, there’s not enough marriage, there’s not enough of all these traditional values that even 50, 60, 70 years ago was just taken for granted. We’re in this grand experiment of what happens if we just remove a bunch of institutions? What happens if we no longer value marriage as something to aspire to? What happened if parenthood is now seen in some camps as almost something weird or against your own self-expression? It’s a grand experiment that I’m curious how it turns out. I prefer to watch it as a movie, like The Children of Men, that was a good show. I wish that wasn’t reality, but we’re seeing that reality play out while I’m sitting here in a very traditional two-parent loving household with three children and going, “This is now at the top.”
And it’s at the source of why we’re not having enough children because there’s not enough couples, there’s not enough marriage, there’s not enough of all these traditional values that even 50, 60, 70 years ago was just taken for granted. We’re in this grand experiment of what happens if we just remove a bunch of institutions? What happens if we no longer value marriage as something to aspire to? What happened if parenthood is now seen in some camps as almost something weird or against your own self-expression? It’s a grand experiment that I’m curious how it turns out. I prefer to watch it as a movie, like The Children of Men, that was a good show. I wish that wasn’t reality, but we’re seeing that reality play out while I’m sitting here in a very traditional two-parent loving household with three children and going, “This is now at the top.”
I’ve done a lot of things in my life. I’ve built software, I’ve built companies, I’ve raced cars, I’ve done all sorts of things, and I would trade all of it in a heartbeat for my kids. That’s just a really fascinating human experience, that the depth of that bond is something you can’t appreciate before you have it. But I also think there is a role to play to talk it up because we’re being bombarded constantly with reasons why not to. Oh, it’s too expensive.
Well, you could get divorced and then you might lose half. There’s all these voices constantly articulating the case against marriage, the case against having children, that those of us who’ve chosen to do the traditional thing, to get married and to have children, have an obligation to talk it up a little bit, which would have seen ridiculous again 50 years ago that you’d have to talk up something so fundamental of that.
But I have become obligated in that sense to do just that, to talk it up, to say, “You know what? You can look at everything that I’ve done and if you like some of those parts, realize that to me, in the situation, the kids, the family, the wife is more important than all of it.” And it sounds like a cliche because you’ve heard it a thousand times before, and by becoming a cliché, maybe you start believing it’s not true, that it’s just something people say, but it is reality.
I know almost no parents that I have personal relationships with that don’t consider their children to be the most important thing in their life.
Lex Fridman
So there’s a lot of interesting things you said. So one, it does seem to be … I know a lot of parents, perhaps more interestingly, I know a lot of super successful people who are parents who really love their kids and who say that the kids even help them to be more successful. Now, the interesting thing, speaking to what you’re saying, is it does seem for us humans, it’s easier to articulate the negatives because they’re concrete, pragmatic. It costs more, it takes some time. They can be crying all over the place. They’re tiny narcissists running around or whatever.
So there’s a lot of interesting things you said. So one, it does seem to be … I know a lot of parents, perhaps more interestingly, I know a lot of super successful people who are parents who really love their kids and who say that the kids even help them to be more successful. Now, the interesting thing, speaking to what you’re saying, is it does seem for us humans, it’s easier to articulate the negatives because they’re concrete, pragmatic. It costs more, it takes some time. They can be crying all over the place. They’re tiny narcissists running around or whatever.
DHH
Which is all true, by the way.
Which is all true, by the way.
Lex Fridman
Yeah, pooping everywhere, that kind of stuff. But to articulate the thing you were speaking to of there’s this little creature that you love more than anything you’ve ever loved in your life, it’s hard to convert that into words. You have to really experience it. But I believe it and I want to experience that, but I believe, because just from a scientific method, have seen a lot of people who are not honestly not very capable of love, fall completely in love with their kids.
Yeah, pooping everywhere, that kind of stuff. But to articulate the thing you were speaking to of there’s this little creature that you love more than anything you’ve ever loved in your life, it’s hard to convert that into words. You have to really experience it. But I believe it and I want to experience that, but I believe, because just from a scientific method, have seen a lot of people who are not honestly not very capable of love, fall completely in love with their kids.
DHH
Yes.
Yes.
Lex Fridman
Very sort of, let’s just call it what it is, engineers that are very like beep boop bop.
Very sort of, let’s just call it what it is, engineers that are very like beep boop bop.
DHH
Yes.
Yes.
Lex Fridman
They just fall in love and it’s like, all right. People who, just like you said, they don’t really care or don’t really think about having kids, that kind of stuff, once they do, it changes everything. But it’s hard to convert into words.
They just fall in love and it’s like, all right. People who, just like you said, they don’t really care or don’t really think about having kids, that kind of stuff, once they do, it changes everything. But it’s hard to convert into words.
DHH
One of the reasons I think it’s also difficult is … I mean, I like kids, not that I actively dislike them, but when I was around other people’s kids, I didn’t have a emotional reaction. Some women have. They see a baby and they go, “Oh.” I never had any emotion of that. I mean, I could appreciate, I’m glad for you that you have children. It did not provoke anything in me. The emotions that are provoked in me when I look at my own children, this doesn’t exist in the same universe, so you don’t have a complete parallel or at least a lot of men, or at least me, I didn’t have a framework to put it into, what would it be like to have my own child?
One of the reasons I think it’s also difficult is … I mean, I like kids, not that I actively dislike them, but when I was around other people’s kids, I didn’t have a emotional reaction. Some women have. They see a baby and they go, “Oh.” I never had any emotion of that. I mean, I could appreciate, I’m glad for you that you have children. It did not provoke anything in me. The emotions that are provoked in me when I look at my own children, this doesn’t exist in the same universe, so you don’t have a complete parallel or at least a lot of men, or at least me, I didn’t have a framework to put it into, what would it be like to have my own child?
And then you experience it. It’s like the poof. And it happened so quickly, too. This is what I found fascinating. It happens before that little human is even able to return any words to you that the love you develop to an infant, it happens quite quickly, not necessarily immediately. I don’t know, different people have different experiences, but it took me a little bit. But then once it hit, it just hit like kick of a horse. And I love that it’s also just such a universal experience that you can be the most successful person in the world, you can be the poorest person in the world, you can be somewhere in the middle, and we share this experience that being a parent, for most of them, turns out to be the most important thing in their life.
Lex Fridman
But it is really nice to do that kind of experience with the right partner. But I think because I’m such an empath, the cost of having the wrong partner is high for me. But then I also realized, man … I have a friend of mine who’s divorced happily and he still loves the shit out of his kids and it’s still beautiful. It’s a mess, but all of that love is still there and you just have to make it work. It’s just that, I don’t know, that kind of divorce would destroy me.
But it is really nice to do that kind of experience with the right partner. But I think because I’m such an empath, the cost of having the wrong partner is high for me. But then I also realized, man … I have a friend of mine who’s divorced happily and he still loves the shit out of his kids and it’s still beautiful. It’s a mess, but all of that love is still there and you just have to make it work. It’s just that, I don’t know, that kind of divorce would destroy me.
DHH
You should listen to The School of Life. He has this great bit on YouTube, you’ll marry the wrong person. If you accept upfront that you will marry the wrong person, that every potential person you can marry is going to be the wrong person on some dimension. They’re going to annoy you. They’re going to be not what you hoped in certain dimensions. The romantic ideal that everything’s just perfect all the time is not very conducive to the reality of hitching up and making babies. Because I think as you just accounted, even when it turns to shit, I find that most of the people I personally know where things have fallen apart and have turned to shit never in a million years would they go, “I regret it. I would rather my children did not exist because a relationship turned sour.” I mean, I think you should try very hard and I think this is also one of those things where we didn’t fully understand those fences, and when we pulled them up and celebrated how easy it is to get divorced, for example, that that wasn’t going to have some negative consequences.
You should listen to The School of Life. He has this great bit on YouTube, you’ll marry the wrong person. If you accept upfront that you will marry the wrong person, that every potential person you can marry is going to be the wrong person on some dimension. They’re going to annoy you. They’re going to be not what you hoped in certain dimensions. The romantic ideal that everything’s just perfect all the time is not very conducive to the reality of hitching up and making babies. Because I think as you just accounted, even when it turns to shit, I find that most of the people I personally know where things have fallen apart and have turned to shit never in a million years would they go, “I regret it. I would rather my children did not exist because a relationship turned sour.” I mean, I think you should try very hard and I think this is also one of those things where we didn’t fully understand those fences, and when we pulled them up and celebrated how easy it is to get divorced, for example, that that wasn’t going to have some negative consequences.
I’m not saying you shouldn’t have divorces. I’m not saying return to times past. I am saying, though, that civilization over thousands of years developed certain technologies for ensuring the continuation of its own institutions and its own life that perhaps we didn’t fully appreciate. I mean, again, this is something Jordan Peterson and others are far more articulate to speak about, and that I’ve learned a lot to just analyze my own situation. Why is it that this incredible burden it is, to be responsible for someone else’s life that you brought into this world is also the most rewarding part of existence? That’s just curious. Before I heard Peterson articulate the value of taking on the greatest burden you know how to carry, I always thought about burdens as a negative things. Why would I want the burden of a child? I might screw it up. I might be a bad parent. They might have bad … All this stuff, right? All the reasons why you shouldn’t. And so few voices articulating why you should.
Lex Fridman
Yeah, but I should also add on top of that, the thing you mentioned currently, perhaps in the West, the matchmaking process …
Yeah, but I should also add on top of that, the thing you mentioned currently, perhaps in the West, the matchmaking process …
DHH
Is broken.
Is broken.
Lex Fridman
… is broken and technology made it worse. It’s fascinating, this whole thing that hasn’t been solved. So hiring great teams, that’s probably been solved the best out of matchmaking, finding great people to hire.
… is broken and technology made it worse. It’s fascinating, this whole thing that hasn’t been solved. So hiring great teams, that’s probably been solved the best out of matchmaking, finding great people to hire.
DHH
Right.
Right.
Lex Fridman
Second, finding great friends. That also hasn’t been solved.
Second, finding great friends. That also hasn’t been solved.
DHH
And it’s breaking down.
And it’s breaking down.
Lex Fridman
It’s breaking down. And the third is matchmaking for relationships. That’s the worst. And in fact, technology made it even worse.
It’s breaking down. And the third is matchmaking for relationships. That’s the worst. And in fact, technology made it even worse.
DHH
Yes.
Yes.
Lex Fridman
It’s fascinating.
It’s fascinating.
DHH
It is. It’s a great example again of how all the greatest intentions still led us straight to hell. I really enjoyed Louise Perry’s analysis of the sexual revolution not being an unqualified good, which was something I hadn’t thought about at all before she articulated it, that, of course, women should be able to have freedom and self-determination and abortions, and all of these things. And Louise Perry is not arguing against that either, of course. But there are second order facts that we don’t appreciate at the time, and we may not have ready-made solutions for, and that’s just interesting.
It is. It’s a great example again of how all the greatest intentions still led us straight to hell. I really enjoyed Louise Perry’s analysis of the sexual revolution not being an unqualified good, which was something I hadn’t thought about at all before she articulated it, that, of course, women should be able to have freedom and self-determination and abortions, and all of these things. And Louise Perry is not arguing against that either, of course. But there are second order facts that we don’t appreciate at the time, and we may not have ready-made solutions for, and that’s just interesting.
You make life better in a million different ways and somehow we end up more miserable. Why is that? Why is it that humans find meaning in hardship? And I think some of that is that it’s a difficult question to answer through science. And again, Peterson articulates well this idea that you have to find some of it through art, some of it through authors, some of it through different … I was just about to say modes of knowing before I stopped myself because that sounds like woo bullshit. But there are different ways to acquire those deep lessons that paper is not going to tell you.
Lex Fridman
I mean, this is really … The point also applies to religion, for example. If you remove from society the software of religion, you better have a good replacement.
I mean, this is really … The point also applies to religion, for example. If you remove from society the software of religion, you better have a good replacement.
DHH
And we’ve had a bunch of bad replacements, especially over the last few decades. Religion is one of those things I’ve struggled with a lot because I’m not religious, but I wish I was. I can now fully appreciate the enormous value having an operating system like that brings, not just at the individual level, but rather at a societal level. And it’s not clear at all what the answer is. I think we’ve tried a lot of dead ends when it came to replacements and people have been filling that void in a million different ways that seem worse than all the religions, despite their faults in a myriad of ways have been able to deliver.
And we’ve had a bunch of bad replacements, especially over the last few decades. Religion is one of those things I’ve struggled with a lot because I’m not religious, but I wish I was. I can now fully appreciate the enormous value having an operating system like that brings, not just at the individual level, but rather at a societal level. And it’s not clear at all what the answer is. I think we’ve tried a lot of dead ends when it came to replacements and people have been filling that void in a million different ways that seem worse than all the religions, despite their faults in a myriad of ways have been able to deliver.
Lex Fridman
Yeah, religions like the cobalt code. It’s just-
Yeah, religions like the cobalt code. It’s just-
DHH
Yes. It’s the institutions where we don’t fully understand the rules and why they’re there and what’s going to happen if we remove them. Some of them seems obvious to me are just bullshit of the time. Oh, you should need, whatever, shellfish, because in that region of the world, there was something, something, something. Okay, fine. But there’s a bunch of other things that are pivotal to keeping society functioning for the long term, and we don’t fully understand which is which. What’s the bullshit and what’s the load-bearing pillars of society?
Yes. It’s the institutions where we don’t fully understand the rules and why they’re there and what’s going to happen if we remove them. Some of them seems obvious to me are just bullshit of the time. Oh, you should need, whatever, shellfish, because in that region of the world, there was something, something, something. Okay, fine. But there’s a bunch of other things that are pivotal to keeping society functioning for the long term, and we don’t fully understand which is which. What’s the bullshit and what’s the load-bearing pillars of society?
Lex Fridman
Can you speak to the hit on productivity that kids have? Did they increase your productivity, decrease it, or is that even the wrong question to ask?
Can you speak to the hit on productivity that kids have? Did they increase your productivity, decrease it, or is that even the wrong question to ask?
DHH
I think it’s one of the reasons why ambitious people are often afraid of having children because they think I have so much more to do and I barely have enough time now. How would I possibly be able to accomplish the things I want to accomplish if I add another human into the mix? Now, A, we’ve always worked 40 hours a week, not 80 or a hundred or 120. I think that’s very beneficial. B, kids don’t exist in this vacuum of just them alone being entered into your life. Hopefully, there’s a partner. And in my life, I’m married to a wonderful woman who decided to stop working her corporate job when we got together and have been able to carry a huge part of that responsibility.
I think it’s one of the reasons why ambitious people are often afraid of having children because they think I have so much more to do and I barely have enough time now. How would I possibly be able to accomplish the things I want to accomplish if I add another human into the mix? Now, A, we’ve always worked 40 hours a week, not 80 or a hundred or 120. I think that’s very beneficial. B, kids don’t exist in this vacuum of just them alone being entered into your life. Hopefully, there’s a partner. And in my life, I’m married to a wonderful woman who decided to stop working her corporate job when we got together and have been able to carry a huge part of that responsibility.
I was just about to say burden, and I think that’s exactly how it often gets presented, especially from a feminist perspective, that carrying for your own children is some unpaid labor that has to be compensated for in some specific way beyond the compensation of what bringing life into this world, raising wonderful humans. There’s something screwy about that analysis that I actually think the modern trad movement is a reply against. Whether they have all the answers, I’m certainly not sure of either, but there’s something that’s just not right in the analysis that children are a burden and that if woman chooses to stay at home with the kids, that that’s some failure mode of feminist ambition. I think that’s actually a complete dead end. Now, depends on different people, different circumstances. I can just speak to my life being married to a wonderful woman who have decided to be home with the kids, at least at their early age, and taken on a lot of those responsibilities. Now, it doesn’t mean there isn’t plenty of ways that I have to be part of that and have to chip in, but it’s allowed me to continue to work the 40 hours a week that I’ve always worked. But it’s made the 40 hours more strict. I have a schedule where I wake up, whatever, 6:30, and we have to get out of the door a little before 8:00. I usually have to play at least one or two rounds of Fortnite with my youngest and sometimes middle child.
Then take the kids to school, get in, start work at, I don’t know, 8:39, then work until 5:00, 5:30, sometimes 6:00, but then it’s dinner and I have to be there for that, and then I have to read to the kids. And by the time that’s done, I don’t want to go back to work. So my work time really is 9:00 to 5:00, 9:00 to 6:00, depending of whatever is going on. Sometimes there’s emergencies and you have to tend to them, but it’s made it more structured and I found some benefit in that and I found some productivity in that, that I can’t goof around quite as much, that the day will end at around 5:36. That’s just if I didn’t accomplish what I wanted to do today, if I get to that time, it’s done. I’m over. I have to try again tomorrow. Whereas before having a family and before having kids, I could just not do it and just make it up in the evening.
So in that way, it’s made me more structured, but it hasn’t really changed my volume of work all that much. I still work about the same amount of hours. And that’s, by the way, enough. This is one of the key points we make in It Doesn’t Have to Be Crazy at Work, the latest book we wrote, is that there’s enough time. 40 hours a week is actually a ton if you don’t piss it away. Most people do piss it away. They piss it away in meetings, they piss it away on just stuff that doesn’t matter when even three hours, four hours of concentrated uninterrupted time every day would move the goals they truly care about way down the field.
Lex Fridman
I think kids do make you more productive in that way for people who need it, especially people like me, they create their urgency.
I think kids do make you more productive in that way for people who need it, especially people like me, they create their urgency.
DHH
Yes.
Yes.
Lex Fridman
If you have to be done by 5:00, it’s maybe counterintuitive notion, but for people like me who like to work, you can really fill the day with fluff of work. And if you have to be done by 5:00, you’re going to have to do the deep work and get it done, really focus singular work. And then you’re just going to cut off all the pressure-
If you have to be done by 5:00, it’s maybe counterintuitive notion, but for people like me who like to work, you can really fill the day with fluff of work. And if you have to be done by 5:00, you’re going to have to do the deep work and get it done, really focus singular work. And then you’re just going to cut off all the pressure-
DHH
It just keeps you honest. It keeps you honest because you can squander one day, you can squander two days, but if I squander a whole week, I feel terrible. Now, that’s just some drive I have in me where I feel content and full meaning if I actually do stuff that matters, if I can look back upon the week and go like, “That was a nice week.” Really, we moved forward. Maybe we didn’t get done, but we moved forward and everything got better. And I think kids really helped just time bucks things in that way. And a lot of people need that because I find just so much of the celebration of overwork to be so tiresome. Oh, I work 60 hours or 80 hours, 100 hours a week, and just like, first of all, no, you don’t. No, you don’t.
It just keeps you honest. It keeps you honest because you can squander one day, you can squander two days, but if I squander a whole week, I feel terrible. Now, that’s just some drive I have in me where I feel content and full meaning if I actually do stuff that matters, if I can look back upon the week and go like, “That was a nice week.” Really, we moved forward. Maybe we didn’t get done, but we moved forward and everything got better. And I think kids really helped just time bucks things in that way. And a lot of people need that because I find just so much of the celebration of overwork to be so tiresome. Oh, I work 60 hours or 80 hours, 100 hours a week, and just like, first of all, no, you don’t. No, you don’t.
Those 80 hours are full of all sorts of fluff that you label work, but that I would laugh at, and that most people laugh at, that you would laugh at if you actually did the analysis of where’s that time going. Most of the important stuff that have to be done is done in these uninterrupted chunks of two hours here or four hours there or five hours there. The hard part is making sure you get them in the whole piece. So don’t give me that. There’s time enough. And also, what’s so important that it ranks above continuing your lineage? I think there’s just some ancient honor in the fact that, again, this DNA that’s sitting on this chair traveled 30,000 years to get here, and you’re going to squander all that away just so you can send a few more emails.
Lex Fridman
There is something that’s also hard to convert into words of just the kind of fun you can have just playing with your kids. I don’t know what that on the surface it’s like, I can have that kind of fun just playing video games by myself, but no, it’s like there’s something magical about it, right?
There is something that’s also hard to convert into words of just the kind of fun you can have just playing with your kids. I don’t know what that on the surface it’s like, I can have that kind of fun just playing video games by myself, but no, it’s like there’s something magical about it, right?
DHH
I have a thousand hours logged in Fortnite since 19, I think, all of it with my kids. I’d never be playing Fortnite. Well, I don’t know if I never would be. I wouldn’t be playing a thousand hours of Fortnite if it wasn’t for my kids. The enjoyment for me is to do something with them that I also happen to enjoy. I really love Fortnite. It’s a phenomenal game. I don’t have to force myself to play that with them. I often ask like, “Hey, do you want to play Fortnite?” But still, it’s an activity that I get to share with them. It’s a passion that I get to share with them. I’ve started doing go-karting with my oldest. I’ve been driving race cars for a long time, and now they’re getting into go-karting, and just being at the go-kart track, seeing them go around, seeing them get faster, seeing them learn that skill, you just go look at what else would I be doing with my life. At my age, 45, I’m standing here truly enjoying life I brought into this world. What else was so important at this stage that I would otherwise be spending my time on?
I have a thousand hours logged in Fortnite since 19, I think, all of it with my kids. I’d never be playing Fortnite. Well, I don’t know if I never would be. I wouldn’t be playing a thousand hours of Fortnite if it wasn’t for my kids. The enjoyment for me is to do something with them that I also happen to enjoy. I really love Fortnite. It’s a phenomenal game. I don’t have to force myself to play that with them. I often ask like, “Hey, do you want to play Fortnite?” But still, it’s an activity that I get to share with them. It’s a passion that I get to share with them. I’ve started doing go-karting with my oldest. I’ve been driving race cars for a long time, and now they’re getting into go-karting, and just being at the go-kart track, seeing them go around, seeing them get faster, seeing them learn that skill, you just go look at what else would I be doing with my life. At my age, 45, I’m standing here truly enjoying life I brought into this world. What else was so important at this stage that I would otherwise be spending my time on?
DHH
… so important at this stage that I would otherwise be spending my time on.
… so important at this stage that I would otherwise be spending my time on.
Racing
Lex Fridman
All right. Like you mentioned, you like to race cars and you do it at a world-class competitive level, which is incredible. So how’d you get into it? What attracts you to racing? What do you love about it?
All right. Like you mentioned, you like to race cars and you do it at a world-class competitive level, which is incredible. So how’d you get into it? What attracts you to racing? What do you love about it?
DHH
The funny thing about getting into racing is I did not get my driver’s license until I was 25. I grew up in Copenhagen, Denmark where the tax on cars is basically over 200%. So you pay for three cars and you get one, and I didn’t even have the money for one car, let alone three. So I could not afford a car growing up. We did not have a car growing up, but Copenhagen is a nice city to be able to get around on a bike or with a bus or as I did for a long period of time, on rollerblades.
The funny thing about getting into racing is I did not get my driver’s license until I was 25. I grew up in Copenhagen, Denmark where the tax on cars is basically over 200%. So you pay for three cars and you get one, and I didn’t even have the money for one car, let alone three. So I could not afford a car growing up. We did not have a car growing up, but Copenhagen is a nice city to be able to get around on a bike or with a bus or as I did for a long period of time, on rollerblades.
But when I was 25, I realized I wanted to spend more time in the U.S. I wasn’t sure yet that I was going to move there. That turned out later to be true, but I knew that if I wanted to spend time in the U.S., I needed to have a driver’s license. I was not going to get around very well if I didn’t know how to drive a car.
So I got a driver’s license at 25. Then ended up moving to the U.S. later that year, and I’d always been into video games, racing video games. Metropolitan Street Racer on the Dreamcast was one of those games that really sucked me into … It was the precursor to Project Gotham, which was the precursor to essentially, Forza Horizon, I think.
Lex Fridman
Oh, okay.
Oh, okay.
DHH
I think that’s how the lineage goes. It’s just a great game. I actually just fired it up on an emulator a few weeks ago and it still sort of, kind of holds up because it has enough real car dynamics that it smells a little bit like driving a real car. It’s not just like an arcade racer like Sega Rally or something like that, but I’d always been into that.
I think that’s how the lineage goes. It’s just a great game. I actually just fired it up on an emulator a few weeks ago and it still sort of, kind of holds up because it has enough real car dynamics that it smells a little bit like driving a real car. It’s not just like an arcade racer like Sega Rally or something like that, but I’d always been into that.
Then I got my driver’s license at 25 and moved to the U.S., and then two years later a friend that I’d met in Chicago took me to the Chicago Autobahn Country Club, which is this great track about 45 minutes from Chicago. And I sat in a race car and I drove a race car for the first time, and I had the same kind of pseudo-religious experience I did as when I started working on Ruby, where I did maybe 20 laps in this basically, a Mazda race car from, I think it was the ’90s or something, a pretty cheap race car, but a real race car. Single-seater, manual gearbox, but exposed slick wheels, all the stuff.
And after having had that experience, first of all it was just the most amazing thing ever. The physical sensation of driving a race car is really unique. And I think if you’ve driven a car fast, you have maybe a 2% taste of it. The exposure to the elements that you get in a single-seat race car, especially one like that where your head is actually out in the elements, you can see the individual wheels and sensation of speed is just so much higher, is at a completely different level.
Lex Fridman
So can you actually speak to that? So even in that Mazda, so you can feel … What, can you feel the track reverberating? You feel the grip?
So can you actually speak to that? So even in that Mazda, so you can feel … What, can you feel the track reverberating? You feel the grip?
DHH
Oh, yeah. Not only can you see the bumps because you’re literally looking straight at the wheels, you can feel all the bumps because you’re running a slick tire and it’s a really stiff setup. It’s nothing like taking a fast street car out on a racetrack and tried to driving a little bit around.
Oh, yeah. Not only can you see the bumps because you’re literally looking straight at the wheels, you can feel all the bumps because you’re running a slick tire and it’s a really stiff setup. It’s nothing like taking a fast street car out on a racetrack and tried to driving a little bit around.
Lex Fridman
So can you feel the slipping, the traction?
So can you feel the slipping, the traction?
DHH
Yeah, you’d feel the slipping. That’s a huge part of the satisfaction of driving a race car, is driving in at the edge of adhesion as we call it, where the car’s actually sliding a little bit. A couple of percent of slip angle is the fastest way to drive a race car. You don’t want to slide it too much. That looks great, lots of smoke, but it’s not fast.
Yeah, you’d feel the slipping. That’s a huge part of the satisfaction of driving a race car, is driving in at the edge of adhesion as we call it, where the car’s actually sliding a little bit. A couple of percent of slip angle is the fastest way to drive a race car. You don’t want to slide it too much. That looks great, lots of smoke, but it’s not fast.
How you want to drive it is just at the limit of adhesion where you’re rotating the car as much as your tires can manage and then slightly more than that. And playing at it, keeping it just at that level because when you’re at the level of, or at the limit of adhesion, you’re essentially just a tiny movement away from spinning out. I mean, it doesn’t take much. Then the car starts rotating. Once it starts rotating, you lose grip and you’re going for the wall.
That balance of danger and skill is what’s so intoxicating, and it’s so much better than racing video games too because the criticality is taken up two notches. I often think about people who really like gambling, where I think, “Aren’t you just playing poker? No, the point is not poker. Poker is maybe part of it, but the point is that I could lose my house.” Right? That’s the addiction that some people get to gambling, that there’s something real on the line.
When you’re in a race car, there’s something very real on the line. If you get it wrong, at the very least you’re going to spin out and probably hit a wall and it’s going to be expensive. At the very worst, you’re not getting out alive. And even if modern race cars have gotten way safer than they used to be, there is that element of danger that’s real, that there are people who still get seriously hurt or even killed in a race car.
It’s mercifully rare compared to what it used to be when those maniacs in the ’60s would do Formula 1 and whatever, 13% of the grid wouldn’t make it to the end of the year because they’d just die in a fiery flaming fireball, but there’s still some of it there.
And I think that since that there’s something on the line really contributes to it, but it’s more than that. It’s not just a physical sensation. There’s activation of all your forces. There’s the flow, and I think that really cements why I got addicted, because I love that flow I got out of programming, but getting flow out of programming is a very inconsistent process.
I can’t just sit down in front of a keyboard and go like, “All right, let’s get the flow going.” It doesn’t happen like that. The problem has to be just right. It has to meet my skills in just the right moment. It’s a bit of a lottery.
In a race car, it’s not a lottery at all. You sit down in that car, you turn the ignition, you go out on track and I get flow virtually guaranteed because you need, or I need at least 100% of my brain processing power to be able to go at the speed I go without crashing. So there’s no time to think about dinner tonight or the meeting next week or product launch. It’s completely zen in actually, the literal sense of the word.
I think of someone who’s really good at meditation, that’s probably kind of state they get into where it’s just clear you’re in the now, there’s nothing but you and the next corner. That’s a really addictive experience.
So after I’ve had that, I couldn’t get enough. I kept going to the track every opportunity I got. Every single weekend for about four years, I would go to the track. And by the end of that time, I’d finally worked up enough skill and enough success with the company that I could afford to go “real racing.”
So I started doing that. I started driving these Porsches, and then as soon as I got into that, as soon as I got into “real competition,” I was like, “I wonder how far you can take this?” And it didn’t take that long before I decided, “You know what? I can take this all the way.”
My great hero in racing is Tom Kristensen, fellow Dane. The Mr. Le Mans, as they call him, the greatest endurance race in the world. The 24 Hours of Le Mans has been won more times than any other by Tom Kristensen. He won the race nine times. So Tom just really turned me on to Le Mans. I’d been watching Le Mans since, I think, the ’80s. I have my earliest memories of watching that on TV. The race has been going since, I think, ’20s, but in the ’80s I got kind of into it.
And then in the late ’90s, early 2000s when Tom started winning, I, like pretty much every other Dane started watching the race almost religiously. So I thought, “You know what? I want to get to Le Mans.”
This is the magic thing about racing, that if I get into basketball, I can’t set a realistic expectation that I’m going to play in the NBA, that I’m going to go to the finals, or I get into tennis and I’m going to play at Wimbledon. That just doesn’t happen. But racing is special in this way because it requires a fair amount of money to keep these cars running. It’s really expensive. It’s like having a small startup. You need to fly a bunch of people around the world and buy expensive equipment and so forth. So you need a bunch of capital, and I had some through the success of the company so I could do it, which meant that I could get to Le Mans.
So I set that as my goal. “I want to get to Le Mans,” and I started racing in real competition 2009, and three years later in 2012, I was at the grid of Le Mans for the first time.
Lex Fridman
We should say, so Le Mans, 24-hour race, endurance. I mean, this is insane.
We should say, so Le Mans, 24-hour race, endurance. I mean, this is insane.
DHH
There are three drivers, mind you. So it’s not like one guy just drives for 24 hours straight, but still it’s a pretty tough race, both physically and mentally, especially mentally. When you’ve been up for 24 plus hours, you’re not quite as sharp as when you first wake up.
There are three drivers, mind you. So it’s not like one guy just drives for 24 hours straight, but still it’s a pretty tough race, both physically and mentally, especially mentally. When you’ve been up for 24 plus hours, you’re not quite as sharp as when you first wake up.
And this is funny about Le Mans too, it starts at around 4:00 in the afternoon, so you’ve already been up for half a day by the time the race starts and then there’s 24 hours to go before you’re done, and you’ll be in the car for anywhere from usually an hour and a half to a maximum of four hours. The regulations say four out of six is the max you can do.
I’ve spent perhaps two and a half hours in a single stint at Le Mans. It’s pretty taxing. You’re going 200 miles an hour into some of these turns and there’s another 60 cars on track. Whenever I’m in my normal category, which is the LMP2 category, I have GT cars which are more like a Ferrari and a Porsche that I have to overtake, and then I have these hyper cars, which is the top-class that are overtaking me.
So you got a lot going on and you got to stay sharp for two and a half hours straight to do that. That is just a guaranteed way to get incredible flow for long, long stretches of time. That’s why you get addicted to it. That was why I got addicted.
Lex Fridman
You got to talk me through this video, this video of you in these LMP2s.
You got to talk me through this video, this video of you in these LMP2s.
DHH
Oh, yes.
Oh, yes.
Lex Fridman
This is such a cool … This is so cool.
This is such a cool … This is so cool.
DHH
Yeah, this was probably my favorite battle of my career.
Yeah, this was probably my favorite battle of my career.
Speaker 1
And Heinemeier Hansson has beat past to add five-
And Heinemeier Hansson has beat past to add five-
DHH
Yeah, so this is me driving against Nico Müller at the Shanghai International Circuit.
Yeah, so this is me driving against Nico Müller at the Shanghai International Circuit.
Lex Fridman
You’re on the outside here?
You’re on the outside here?
DHH
I’m on the outside in the blue and white and we go a whole track around with basically a piece of paper between us. See, down this back straight, I get so close to him because I want to force him over on the other side of the track such that he can’t just box me in, and we’ve been fighting already at this point for basically 40 minutes straight.
I’m on the outside in the blue and white and we go a whole track around with basically a piece of paper between us. See, down this back straight, I get so close to him because I want to force him over on the other side of the track such that he can’t just box me in, and we’ve been fighting already at this point for basically 40 minutes straight.
I’ve been managing to keep this professional driver behind me for 40 minutes, and he finally passes me, but we just keep the battle on for the whole time. And it really just shows both these kinds of cars, the Le Mans Prototypes. We don’t actually ever touch. We get within about an inch and keep going around the Shanghai Circuit to-
Lex Fridman
How did you get so good? I mean, that’s a fascinating story, right, that you are able to get so good?
How did you get so good? I mean, that’s a fascinating story, right, that you are able to get so good?
DHH
I’m pretty good for the kind of driver I am, which is called the gentleman driver, which means I’m not a professional driver. And like many good gentlemen drivers, when we’re at our really best, we can be quite competitive with even professional drivers who have been doing this their whole life.
I’m pretty good for the kind of driver I am, which is called the gentleman driver, which means I’m not a professional driver. And like many good gentlemen drivers, when we’re at our really best, we can be quite competitive with even professional drivers who have been doing this their whole life.
The difference between us and the professionals is the professionals can do it every time, or more or less every time. So I can’t be this good all the time. When everything is just right, I can be competitive with professional drivers, but that’s not how you win championships. That’s not how you get paid by factories to drive. You got to be good every time you go out.
So that’s a huge difference. But some of it was also just, I really put my mind to it. By the time I realized race cars is what I want to do as my serious hobby, I put in thousands of hours.
Lex Fridman
Have you crashed? What’s the worst crash?
Have you crashed? What’s the worst crash?
DHH
I’ve had a lot of crashes, but thankfully, knock on wood, I haven’t had any crashes where I’ve gotten really seriously hurt.
I’ve had a lot of crashes, but thankfully, knock on wood, I haven’t had any crashes where I’ve gotten really seriously hurt.
Lex Fridman
Have you wrecked the car?
Have you wrecked the car?
DHH
Oh, yes. Oh, yes. I’ve wrecked many a cars.
Oh, yes. Oh, yes. I’ve wrecked many a cars.
Lex Fridman
So what’s that feel like, just you wreck a car? How do you get-
So what’s that feel like, just you wreck a car? How do you get-
DHH
It feels like total shit if you’re in a real race and other people depend on you. It’s not even so much the car, although it’s also sometimes that these cars are expensive to repair and that sucks and it feels so wasteful in a way when you crash some of these cars, but the sense that you’re letting a team down.
It feels like total shit if you’re in a real race and other people depend on you. It’s not even so much the car, although it’s also sometimes that these cars are expensive to repair and that sucks and it feels so wasteful in a way when you crash some of these cars, but the sense that you’re letting a team down.
Endurance racing is a team sport. Not only do you have your mechanics, you usually have co- drivers. So when I crash, I just feel like, “Damn it, I could have avoided this.”
Lex Fridman
Yeah, but also you could have died.
Yeah, but also you could have died.
DHH
Do you know what’s funny? I never think about that. I don’t think you can because I think the moment you start thinking about being able to die, you can’t do it. You can’t go fast.
Do you know what’s funny? I never think about that. I don’t think you can because I think the moment you start thinking about being able to die, you can’t do it. You can’t go fast.
Lex Fridman
Well, I’m sure, not to go all Carl Jung and Freud here, but I’m sure that’s always present in the back of your mind somewhere. You’re not just bringing it to the surface.
Well, I’m sure, not to go all Carl Jung and Freud here, but I’m sure that’s always present in the back of your mind somewhere. You’re not just bringing it to the surface.
DHH
It is in the sense that it’s part of the appeal. It’s part of the sense that there’s something on the line, that this isn’t just virtual. I can’t just hit reset, restart, reboot. If I crash this car, we’re going to be out, or we’re going to be disadvantaged, or it’s going to get destroyed, or I might get hurt.
It is in the sense that it’s part of the appeal. It’s part of the sense that there’s something on the line, that this isn’t just virtual. I can’t just hit reset, restart, reboot. If I crash this car, we’re going to be out, or we’re going to be disadvantaged, or it’s going to get destroyed, or I might get hurt.
I’ve gotten lightly hurt a few times. I actually had, the year we won 24 Hours of Le Mans in our class, I’d been training in this Formula 3.5 car. It’s a really fast car, it’s a really nice exercise to do, but it’s also, it doesn’t have power steering. So some of these race cars, especially the open-seaters, they don’t have power steering, which means that the steering wheel is basically, directly connected to the front wheels.
So if you crash one of those cars and the front wheels suddenly turn, you’re really going to hurt your hands if you don’t get your hands off the wheel. I hadn’t raced enough of those cars to know that I had to get, or to have the instinct, to have developed the instinct that I had to get my hands off the wheel, so I didn’t and I really hurt my hand.
This was just, I think a month before the 24 Hours of Le Mans. So I thought, “Oh man, I’m going to have to miss it this year.” I had, not a cast. It was just seriously sprained. And then somehow, miraculously a week before the event, I was like, “Oh yeah, actually it’s okay now.” So, got to do it.
And that would’ve been grave regret if I would’ve seen my team go on to win the race and I would have to sit on the sidelines. But I really have been quite fortunate in the sense that most of my crashes have just been expensive or sporting-inconvenient. They’ve never been something where I got seriously hurt, but I’ve seen plenty of people who have.
In fact, my co-driver this year, and for several years, Pietro Fittipaldi drove a race car at Spa. Spa is one of the great racetracks of all time and it has this iconic corner called Eau Rouge, which is probably the most famous corner in all of Motorsports that has a great compression before you climb uphill.
It’s extremely fast, very difficult corner. And just as he does the compression, his car basically sets out and he loses his power steering and he drives straight into the wall and breaks both his legs and basically, face the prospect that maybe his career was over. I’ve had other teammates and people I know have serious injuries that’s really hurt them.
And yet what’s funny, as you say, you’d think that would sink in. The year before we won in 2014, that same car had a Danish driver in it at Le Mans at the race I was driving, who died. He lost control of the car when there was a bit of rain on the track, and the track was unfortunately designed in such a poor way that there was a very big tree right behind the railing. And he hit that tree at full speed, pulled 90gs and was dead on the spot, which was just such an extremely awful experience to go through.
I finished second that year, which should have been cause for a bunch of celebration, but it was just tainted by the fact that not only did a driver die, a fellow Dane died, a guy I knew died. That was pretty tough.
Lex Fridman
So throw that into the pile of the things that have to be considered, is the weather conditions, like you mentioned of the track, whether it’s dry or wet.
So throw that into the pile of the things that have to be considered, is the weather conditions, like you mentioned of the track, whether it’s dry or wet.
DHH
It’s a huge part of it. Even just last year at Le Mans, it was raining and I was out and I hadn’t made a serious mistake at 24 Hours of Le Mans since I did the first race in 2012, where I put it in the sand trap with four hours to go. And we lost a couple of laps getting pulled out, but it didn’t actually change anything for our result because that was just how the field was spread out.
It’s a huge part of it. Even just last year at Le Mans, it was raining and I was out and I hadn’t made a serious mistake at 24 Hours of Le Mans since I did the first race in 2012, where I put it in the sand trap with four hours to go. And we lost a couple of laps getting pulled out, but it didn’t actually change anything for our result because that was just how the field was spread out.
I’d made minor mistakes over the years, but nothing that really set us out. And at the race last year when it was raining, I first clobbered a Ford Mustang when I made an overambitious pass on a damp part of the track and couldn’t stop in time and then felt absolutely awful as I sat in the gravel pit for two laps and knew that our race was over, a race where we were highly competitive.
You’re not blessed with a competitive car, a competitive team and competitive setup every year. I know how rare that is. So to know that we had had a chance that year and I sort of squandered it felt really bad. But that got compounded when I got back on track, barely made it another stint and then put it into gravel trap again when it started raining on the entrance into Porsche.
So this is part of why racing is so addicting too because the highs are very, very high. When you win a race like the 24 Hours of Le Mans, it feels just incredible. There’s so much emotion, but if you fuck it up, the lows are very, very low.
Lex Fridman
What are the things you’re paying attention to when you’re driving? What are the parameters? What are you loading in? Are you feeling the grip? Are you basically increasing the speed and seeing a constant feedback system effect it has on the grip, and you’re trying to manage that and trying to find that optimal slip angle?
What are the things you’re paying attention to when you’re driving? What are the parameters? What are you loading in? Are you feeling the grip? Are you basically increasing the speed and seeing a constant feedback system effect it has on the grip, and you’re trying to manage that and trying to find that optimal slip angle?
Are you looking around using your eyes? Are you smelling things? Are you listening, just feeling the wind or are you looking at the field, too? How’d you not hit that guy at all? You get close within inches, right? So you have to pay attention to that, too.
DHH
It’s really interesting about that specific battle where we’re literally a few inches apart. I can’t fully explain it, but humans can develop an incredible sense of space where I can’t see the edge of the back of my car, but I can know exactly where it is. I can have a mental model in my head that gives me the exact dimensions of this car such that I can run within a few inches of a competitor car or within a few inches of the wall and not hit either when things go well.
It’s really interesting about that specific battle where we’re literally a few inches apart. I can’t fully explain it, but humans can develop an incredible sense of space where I can’t see the edge of the back of my car, but I can know exactly where it is. I can have a mental model in my head that gives me the exact dimensions of this car such that I can run within a few inches of a competitor car or within a few inches of the wall and not hit either when things go well.
The car is about two meters wide and it’s quite long, five meters and you can’t see everything. The mirrors are actually kind of shit. There’s no rear-view mirror in these cars. You can’t see out the back. You can only see through your two side mirrors, but you form this intuitive mental model when you get good enough at this.
But what I actually pay attention to most is I run a program. What I try to do when I go to a racetrack is I try to load up the best program I know how for every single corner. What’s my brake point? What’s my acceleration point? What’s my brake trailing curve? And I try to pick up that program in part just by finding it myself and how fast I can go. But even more so than that by copying my professional competitors, or not competitors, co-drivers.
So I usually always race with a pro, and modern race cars produce an absolute enormous amount of data, and you can analyze all that data after each outing. You can see an exact trace of how much you pushed the brake pedal, how much you did in terms of steering inputs, when you got on the gas. You can see every millisecond you’re losing is evident in those charts.
So what I try to do is I try to look at the chart and then I try to load that in, and that’s what I got to do. “Oh, in this corner 17, I have to be 10 bar lighter on the brake,” so I try to load that program in and then I try to repeat it.
Now, then there are all the things that changes. Your tires change quite a lot. These tires are made to only last 40 minutes in many cases. Sometimes at Le Mans we can go longer, but at some racetracks they’ll last as little as 40 minutes before they really fall off. So you got to manage that, that the grip is constantly changing, so your program have to suddenly fit those changing circumstances.
And then in endurance racing, you’re constantly interacting with other cars because you’re passing slower classes or you’re getting passed by a faster class. So that’s part of the equation. And then you’re trying to dance the car around the limit of adhesion.
So you got all those factors playing at the same time. But above all else for me is to try to become a robot. How can I repeat this set of steps exactly as I’m supposed to for two and a half hours straight without making 100 milliseconds worth of mistakes?
Lex Fridman
Yeah. Low latency algorithm.
Yeah. Low latency algorithm.
DHH
That’s really a huge part of it actually. Your latency is enormously important in terms of being able to catch when the car starts slipping. You get this sensation in your body that the G-forces are a little off, the slip angle is a little off and then you have to counter steer.
That’s really a huge part of it actually. Your latency is enormously important in terms of being able to catch when the car starts slipping. You get this sensation in your body that the G-forces are a little off, the slip angle is a little off and then you have to counter steer.
And obviously, the best race car drivers just feel like an intuition. I have some intuition. I don’t have all of it, so I do occasionally spin my car, but that’s the challenge.
Lex Fridman
From everything you’ve studied and understand, what does it take to achieve mastery in racing? What does it take to become the best race car driver in the world?
From everything you’ve studied and understand, what does it take to achieve mastery in racing? What does it take to become the best race car driver in the world?
DHH
Obsession is part of it. When I read and hear about Senna and the other greats, they were just singularly focused. Max Verstappen is the current champion of the world and he is the same kind. Max has been fascinating to watch. I mean, he’s a phenomenal race car driver, but he also literally does nothing else. When he’s not at the racetrack, he’s driving sim racing. He’s literally in video games doing more racing when he’s not doing all the racing he’s already doing.
Obsession is part of it. When I read and hear about Senna and the other greats, they were just singularly focused. Max Verstappen is the current champion of the world and he is the same kind. Max has been fascinating to watch. I mean, he’s a phenomenal race car driver, but he also literally does nothing else. When he’s not at the racetrack, he’s driving sim racing. He’s literally in video games doing more racing when he’s not doing all the racing he’s already doing.
Lex Fridman
Is there a specific skill they have that stands out to you as supernatural through all of that obsession? Is it a bunch of factors or are they actually able to, like you said, develop a sense? Is it, they’re able to get to the very edge of the slip?
Is there a specific skill they have that stands out to you as supernatural through all of that obsession? Is it a bunch of factors or are they actually able to, like you said, develop a sense? Is it, they’re able to get to the very edge of the slip?
DHH
They’re able to develop very fine-tuned sensibilities for when the car is sliding. They can feel just these tiny moments or movements in the chassis that transports up usually through their ass. That’s why you call it a butt meter that goes up and you feel like the car is loose, or you feel like you’re just about to lock up. You can really hone that tuning.
They’re able to develop very fine-tuned sensibilities for when the car is sliding. They can feel just these tiny moments or movements in the chassis that transports up usually through their ass. That’s why you call it a butt meter that goes up and you feel like the car is loose, or you feel like you’re just about to lock up. You can really hone that tuning.
Then the other thing is you have to have really good reaction time. And when you look at great Formula 1 drivers, they can generally have a reaction time of just under 200 milliseconds, which is awesome, and even 10 milliseconds’ difference makes a huge difference.
You’ll see it when the Formula 1 grid, for example, they do a standing start and you see the five red lights come on. And when the last light goes out, they’re supposed to release the clutch and get going, and they can time this. So you can see exactly who has the reaction time.
And even being off by 20 milliseconds can make the difference of whether you’re in front or behind at the first corner.
Lex Fridman
How much of winning is also just the strategy of jostling for position?
How much of winning is also just the strategy of jostling for position?
DHH
There’s some of that, and some of it is also just nerve. Who wants it more? That’s exactly when that sense of danger comes in. There’s a great quote from Fernando Alonso when he was driving at Suzuka against Schumacher, I think.
There’s some of that, and some of it is also just nerve. Who wants it more? That’s exactly when that sense of danger comes in. There’s a great quote from Fernando Alonso when he was driving at Suzuka against Schumacher, I think.
They’re coming up to this incredibly fast corner. It’s very dangerous, and Alonso basically accounts, “I was going to make the pass because I knew he had a wife and kids at home.”
Lex Fridman
That’s so gangster.
That’s so gangster.
DHH
Just absolutely ruthless, right?
Just absolutely ruthless, right?
Lex Fridman
Yeah. Wow.
Yeah. Wow.
DHH
That, “I knew he valued life more than I did.” So there’s a bit of poker sometimes in that, who’s going to yield? There’s a bit of chicken raised in that regard, and sometimes it doesn’t work. No one yields and you both crash, but very often one person will blink first.
That, “I knew he valued life more than I did.” So there’s a bit of poker sometimes in that, who’s going to yield? There’s a bit of chicken raised in that regard, and sometimes it doesn’t work. No one yields and you both crash, but very often one person will blink first.
Lex Fridman
Can the pass be both on the inside and the outside or is it-
Can the pass be both on the inside and the outside or is it-
DHH
You can pass wherever you want as long as you have just a slight part of the car on the racetrack.
You can pass wherever you want as long as you have just a slight part of the car on the racetrack.
Lex Fridman
And then you just improvise and take risks. What a sport. And then Senna, of course is a legendary risk-taker.
And then you just improvise and take risks. What a sport. And then Senna, of course is a legendary risk-taker.
DHH
Yes. And even before him. By the time … I mean, he died in the ’90s, but by the time we got to the ’90s, racing was already a lot safer than it was when Nik Lauda raced in the ’60s. That level of danger is no longer there. There’s still just a remnant of it and it is still dangerous, but nothing like that.
Yes. And even before him. By the time … I mean, he died in the ’90s, but by the time we got to the ’90s, racing was already a lot safer than it was when Nik Lauda raced in the ’60s. That level of danger is no longer there. There’s still just a remnant of it and it is still dangerous, but nothing like that.
And it’s a little hard to compare through the ages who’s the greatest driver of all time. I think there’s a fair argument that Senna is, but we don’t have the data. We don’t know who he was up against. How would he fare if we pitted him against Max Verstappen today?
I do think sometimes that you can have a bit of a nostalgia for the all-time greats, but the world moves forward and new records are being set all the time and the professionalism keeps improving, sometimes to the detriment of the sport, I think.
There’s a lot of professional drivers who are not only just very good at driving, but are very good at being corporate spokespeople, and it used to be quite different. There used to be more characters in racing that had a bit more personality that they were allowed to shine because there weren’t a billion sponsorships on the line that they were afraid to lose.
Cars
Lex Fridman
Ridiculous question, what’s the greatest car ever made, or maybe what’s the funnest one to drive?
Ridiculous question, what’s the greatest car ever made, or maybe what’s the funnest one to drive?
DHH
The greatest car for me of all time is the Pagani Zonda.
The greatest car for me of all time is the Pagani Zonda.
Lex Fridman
Okay, I’m looking this up, Pagani Zonda.
Okay, I’m looking this up, Pagani Zonda.
DHH
So the Pagani Zonda was made by this wonderful Argentinian called Horacio Pagani.
So the Pagani Zonda was made by this wonderful Argentinian called Horacio Pagani.
Lex Fridman
My God, that’s a beautiful car. Wow.
My God, that’s a beautiful car. Wow.
DHH
It’s a gorgeous car. You can look up mine. It’s the Pagani Zonda HH. Yep. So, that’s a car I had made in 2010 after we visited the factory in Modena, and by sheer accident ended up with this car, but it became my favorite car in the world basically. When I watched an episode of Top Gear, I think in 2005, where one of the presenters was driving the Pagani Zonda F around and I just thought, “That’s the most beautiful car in the world. It is the most incredibly sounding car in the world. If I one day have the option, this is what I want.”
It’s a gorgeous car. You can look up mine. It’s the Pagani Zonda HH. Yep. So, that’s a car I had made in 2010 after we visited the factory in Modena, and by sheer accident ended up with this car, but it became my favorite car in the world basically. When I watched an episode of Top Gear, I think in 2005, where one of the presenters was driving the Pagani Zonda F around and I just thought, “That’s the most beautiful car in the world. It is the most incredibly sounding car in the world. If I one day have the option, this is what I want.”
And then I had the option in 2010. I’ve had the car ever since. I’m never ever going to sell it. It’s truly a masterpiece that’s stood the test of time. There’s some great cars from history that are recognized as being great in their time. This car is still great.
Lex Fridman
Have you taken it on the racetrack?
Have you taken it on the racetrack?
DHH
I have. It’s terrible at that. But I don’t want to say it’s terrible at that. That’s not what it’s designed for. It’s designed for the road and that’s why it’s great. There are a lot of fast cars that are straddling their race car for the road. You don’t actually want a race car for the world. A race car for the world is a pain in the ass. It’s way too stiff. It’s way too loud. It’s way too uncomfortable. You can’t actually take it on a road trip.
I have. It’s terrible at that. But I don’t want to say it’s terrible at that. That’s not what it’s designed for. It’s designed for the road and that’s why it’s great. There are a lot of fast cars that are straddling their race car for the road. You don’t actually want a race car for the world. A race car for the world is a pain in the ass. It’s way too stiff. It’s way too loud. It’s way too uncomfortable. You can’t actually take it on a road trip.
Lex Fridman
So this actually feels good driving on normal roads?
So this actually feels good driving on normal roads?
DHH
Oh, totally, totally.
Oh, totally, totally.
Lex Fridman
And you, of course always go to speed limit?
And you, of course always go to speed limit?
DHH
Always. This is why I love having this car in Spain because they’re a little more relaxed. Not entirely relaxed, but more relaxed than they are in a lot of places. In Denmark, I kid you not, if you are on the highway and you go more than twice the speed limit, they confiscate your car and keep it. You’re not getting it back. They don’t even care if it’s your car or not. If you were borrowing my car and you went twice the speed limit, it’s gone.
Always. This is why I love having this car in Spain because they’re a little more relaxed. Not entirely relaxed, but more relaxed than they are in a lot of places. In Denmark, I kid you not, if you are on the highway and you go more than twice the speed limit, they confiscate your car and keep it. You’re not getting it back. They don’t even care if it’s your car or not. If you were borrowing my car and you went twice the speed limit, it’s gone.
So they don’t do that in Spain. I mean, in most places, except for the German Autobahn, they get pissy if you go twice the speed limit for all sorts of fair reasons. I’m not advocating that you should be going much more than that, but there are certain special roads where you can’t open things up and no one’s in harm’s way, and that’s an incredible sensation. And I do think that some of those speed limits actually are kind of silly, and I’m not just saying that in a vacuum.
In Germany, they have the glorious Autobahn, and on the Autobahn there is no speed limit in a bunch of segments. And they’re so committed to their speed-limitless Autobahn, which is by the way, very weird of Germans. They usually love rules. They’re usually very precise about it, and then they have this glorious thing called the Autobahn.
There was a great case a couple of years ago where a guy took out a Bugatti Chiron, went 400 kilometers an hour on the Autobahn, and he filmed it and put it on YouTube and a case was brought against him because even though they don’t have a speed limit, they do have rules that you can’t drive recklessly, and he won the case. He wasn’t driving recklessly. He was just going very, very fast.
I’ve done the Autobahn a couple of times. My wife and I went on a road trip in Europe in 2009, and I got the Lamborghini Gallardo we were driving up to 200 miles an hour. And I’d driven 200 miles an hour or close to it on a racetrack before. That feels like one thing. Driving on a public road 200 miles an hour feels really, really fast.
Lex Fridman
Scary?
Scary?
DHH
Actually a little scary, yes, because you constantly think, on a racetrack you know the road, you know the surface. You can walk the track in most of the time. You can know if there’s a dip. On a public road you can’t know if there’s suddenly a pothole. Presumably there’s not going to be a pothole on the German Autobahn, but it does feel a little scary, but also exhilarating.
Actually a little scary, yes, because you constantly think, on a racetrack you know the road, you know the surface. You can walk the track in most of the time. You can know if there’s a dip. On a public road you can’t know if there’s suddenly a pothole. Presumably there’s not going to be a pothole on the German Autobahn, but it does feel a little scary, but also exhilarating.
Speed is just intrinsically, really fun. I don’t know anyone I’ve taken out in a fast car … Well, actually I do know a few people. Most people I take out in a fast car, they grin. It’s a human reaction to grin when you go really fast.
Lex Fridman
Do you know what’s the fastest you’ve ever gone?
Do you know what’s the fastest you’ve ever gone?
DHH
It was probably at Le Mans, I think when the LMP2s were at their maximum power and had 600 horsepower and really sticky tires, we were going 340 kilometers an hour, which is just over 200 miles an hour, a bit over 200 miles an hour. That does feel fast.
It was probably at Le Mans, I think when the LMP2s were at their maximum power and had 600 horsepower and really sticky tires, we were going 340 kilometers an hour, which is just over 200 miles an hour, a bit over 200 miles an hour. That does feel fast.
And it’s really interesting with speed, is that the difference between going, let’s say 150 and 160 doesn’t feel that much actually, those 10 miles an hour. But the difference between going 190 and 200 feels crazy faster, which as a percentage change is actually less than going from 150 to 160, but there’s some sense of exponentiality once you get up to those limits, where it’s just on a completely different level.
Lex Fridman
Yeah, because to me, 110, 120 feels fast. 200, that’s crazy.
Yeah, because to me, 110, 120 feels fast. 200, that’s crazy.
DHH
It really is crazy.
It really is crazy.
Programming setup
Lex Fridman
I got to ask you about the details of your programming setup, the IDE, all that kind of stuff. Let’s paint the picture of the perfect programming setup. Do you have a programming setup that you enjoy? Are you very flexible? How many monitors? What kind of keyboard? What kind of chair? What kind of desk?
I got to ask you about the details of your programming setup, the IDE, all that kind of stuff. Let’s paint the picture of the perfect programming setup. Do you have a programming setup that you enjoy? Are you very flexible? How many monitors? What kind of keyboard? What kind of chair? What kind of desk?
DHH
It’s funny because if you’d asked me, let’s see, a year and a half ago, I would’ve given you the same answer as I would’ve given anyone for basically 20 years. I want a Mac. I like the Magic Keyboard. I like the single monitor. Apple makes an awesome 6K 32-inch XDR screen that I still haven’t found anyone who’ve beaten that I still use. Even though I switched away from Apple computers, I still use their monitor because it’s just fantastic. But I’ve always been a single screen kind of guy.
It’s funny because if you’d asked me, let’s see, a year and a half ago, I would’ve given you the same answer as I would’ve given anyone for basically 20 years. I want a Mac. I like the Magic Keyboard. I like the single monitor. Apple makes an awesome 6K 32-inch XDR screen that I still haven’t found anyone who’ve beaten that I still use. Even though I switched away from Apple computers, I still use their monitor because it’s just fantastic. But I’ve always been a single screen kind of guy.
I do like a big screen, but I don’t want multiple screens. I’ve never found that, that really works with my perception. I want to be able to just focus on a single thing. I don’t want all of it all over the place, and I’ve always used multiple virtual desktops and being able to switch back and forth between those things.
But the setup I have today is Linux, I switched to a little over a year ago after I finally got fed up with Apple enough that I couldn’t do that anymore. And then I use this low-profile mechanical keyboard called the Lofree Flow84, which is just a …
DHH
… Flow84, which is just the most glorious-sounding keyboard I’ve ever heard. I know there are a lot of connoisseurs of mechanical keyboards that’ll probably contest me on this. This is too thocky or too clicky or too clacky or whatever. But for me, the Lofree Flow84 is just a delight that I did not even know existed, which is so funny because I’ve been programming for a long time. Mechanical keyboards have been a thing for a long time.
… Flow84, which is just the most glorious-sounding keyboard I’ve ever heard. I know there are a lot of connoisseurs of mechanical keyboards that’ll probably contest me on this. This is too thocky or too clicky or too clacky or whatever. But for me, the Lofree Flow84 is just a delight that I did not even know existed, which is so funny because I’ve been programming for a long time. Mechanical keyboards have been a thing for a long time.
And the keyboard, when you look at it like this, it looks plain. It doesn’t look extravagant. But the tactile sensation you get out of pushing those keys, the thocky sound that you hear when the keys hit the board, it’s just sublime. And I’m kicking myself that I was in this Mac bubble for so long that I wasn’t even in the market to find this.
I knew mechanical keyboards existed, but to be blunt, I thought it was a bit of a nerd thing that only real nerds that were much more nerdy than me would ever care about. And then I got out of the Apple bubble and suddenly, I had to find everything again. I had to find a new mouse, I had to find a new keyboard, I had to find everything. And I thought, “All right. Let me give mechanical keyboards a try.” And I gave quite a few of them a try.
The Keychron is one of the big brands in that. I didn’t like that at all. I tried a bunch of other keyboards. And then I finally found this keyboard and I just went like… Angels are singing. Where have you been my whole life? We spend, as programmers, so much of our time interacting with those keys. It really kind of matters.
In a way, I didn’t fully appreciate it. I used to defend the Apple Magic Keyboard like, “Hey, it’s great. It’s actually a great keyboard.” And I think for what it is, this ultra-low profile, ultra-low travel, it’s actually a really nice keyboard. But once you’ve tried a longer-travel mechanical keyboard, there’s no going back.
Lex Fridman
You do have to remember, in many ways, both on the software side and the hardware side, that you do spend a lot of hours-
You do have to remember, in many ways, both on the software side and the hardware side, that you do spend a lot of hours-
DHH
Yes.
Yes.
Lex Fridman
… behind the computer. It’s worth-
… behind the computer. It’s worth-
DHH
It’s worth investing in.
It’s worth investing in.
Lex Fridman
And also worth exploring until you find the thing where the angels start singing, whatever.
And also worth exploring until you find the thing where the angels start singing, whatever.
DHH
That’s exactly right. And I actually do regret that a little bit, especially with this damn keyboard. I could have been listening to these beautiful thocky keys for years and years. But sometimes you have to get really pissed off before you open your eyes and see that something else exists.
That’s exactly right. And I actually do regret that a little bit, especially with this damn keyboard. I could have been listening to these beautiful thocky keys for years and years. But sometimes you have to get really pissed off before you open your eyes and see that something else exists.
I feel the same way about Linux. So I’ve been using Linux on the server since late ’90s probably. We ran servers on Linux back then. I never seriously considered it as a desktop option. I never ran Linux before directly myself. I always thought, “Do you know what? I want to focus on programming. I don’t have time for all these configuration files and all this setup bullshit and whatnot. And Apple is close enough. It’s built on Unix underpinnings. Why do I need to bother with Linux?”
And again, it was one of those things. I needed to try new things and try something else to realize that there is other things other than Apple. And again, it’s not because I hate Apple. I think they still make good computers. I think a lot of the software is still also pretty okay. But I have come to realize that as a web developer, Linux is just better.
Lex Fridman
Yeah.
Yeah.
DHH
Linux is just better. It’s closer to what I deploy on. The tooling is actually phenomenal. And if you spend a bit of time setting it up, you can record a reproducible environment that I’ve now done with this Omakub concept or project that I’ve done, that I can set up a new Linux machine in less than 30 minutes and it’s perfect.
Linux is just better. It’s closer to what I deploy on. The tooling is actually phenomenal. And if you spend a bit of time setting it up, you can record a reproducible environment that I’ve now done with this Omakub concept or project that I’ve done, that I can set up a new Linux machine in less than 30 minutes and it’s perfect.
It’s not pretty good. It’s not like I still need to spend two hours on it. It’s perfect. Because you can encode all aspects of the development environment into this. And I didn’t know. I didn’t even know, to be fair, that Linux could look as good as it can.
If you look at a stock Ubuntu or Fedora boot, I mean, not that it’s ugly, but I’d pick the Mac any day of the week. You look at Omakub, I mean, I’m biased here, of course, because I built it with my own sensibilities, but I look at that and go like, “This is better. This is beautiful.”
And then you look at some of those true Linux ricing setups where people go nuts with everything. And you go, “Oh, yeah, I remember when computers used to be fun in this way,” when there was this individuality and this setup, and it wasn’t just all bland, the sameness. And I think that’s the flip side sometimes of something like Apple, where they have really strong opinions and they have really good opinions and they have very good taste, and it looks very nice, and it also looks totally the same.
And Linux has far more variety and far more texture and flavor, sometimes also annoyances and bugs and whatever. But I run Linux now. It’s Ubuntu-based with the Omakub stuff on top, the Lofree keyboard. I use a Logitech. What’s it called? The MX 3 mouse, which I love how it feels in my hand. I don’t love how it looks.
I actually was a Magic Mouse stan for the longest time. I thought it was genius that Apple integrated the trackpad into a mouse, and I used that. And I always thought it was ridiculous that people would slag it just because you had to charge it by flipping it over because the battery would last for three months and then you’d charge it for half an hour.
I thought that was a perfect compatibility with my sensibilities. I don’t mind giving up a little inconvenience if something is beautiful, and that Magic Mouse is beautiful. But it wasn’t going to work on Linux, so I found something else. The MX 3 is nice, but I sometimes do wish the Magic Mouse… That’s pretty good.
Lex Fridman
Yeah. Linux is really great for customizing everything, for tiling, for macros, for all of that. I also do the same in Windows with AutoHotKey, where you just customize the whole thing to your preferences.
Yeah. Linux is really great for customizing everything, for tiling, for macros, for all of that. I also do the same in Windows with AutoHotKey, where you just customize the whole thing to your preferences.
DHH
If you’re a developer, you should learn how to control your environment with the keyboard. It’s faster, it’s more fluid. I think one of those silly things I’ve come to truly appreciate about my Omakub setup is that I can, in whatever time it takes to refresh the screen, probably five milliseconds, switch from one virtual desktop to another.
If you’re a developer, you should learn how to control your environment with the keyboard. It’s faster, it’s more fluid. I think one of those silly things I’ve come to truly appreciate about my Omakub setup is that I can, in whatever time it takes to refresh the screen, probably five milliseconds, switch from one virtual desktop to another.
Even on Windows, you can’t get it that smooth. You can get close. You can’t get it that smooth. On macOS, for whatever reason, Apple insists on having this infuriating animation when you switch between virtual desktops, which makes it just that you don’t want to. You don’t want to run full-screen apps because it’s too cumbersome to switch between the virtual desktops. The kind of immediacy that you can get from a wonderful Linux setup in that regard is just next-level.
Lex Fridman
Yeah. And it seems like a subtle thing, but a difference of milliseconds and latency between switching the virtual desktops, for example, I don’t know, it changes-
Yeah. And it seems like a subtle thing, but a difference of milliseconds and latency between switching the virtual desktops, for example, I don’t know, it changes-
DHH
It changes how you use the computer. It really does.
It changes how you use the computer. It really does.
Lex Fridman
Similar thing with VR, right? If there’s some kind of latency, it just completely takes you out of it. Yeah.
Similar thing with VR, right? If there’s some kind of latency, it just completely takes you out of it. Yeah.
DHH
And it’s funny. I actually had to watch… I think it was ThePrimeagen on YouTube when he was showing off his setup, and I was seeing how quickly he was switching between those virtual desktops. And I’d always been using virtual desktops, but I didn’t like switching too much because just of that latency. And it’s like, “Oh, you can do that on Linux? Oh, that’s pretty cool.”
And it’s funny. I actually had to watch… I think it was ThePrimeagen on YouTube when he was showing off his setup, and I was seeing how quickly he was switching between those virtual desktops. And I’d always been using virtual desktops, but I didn’t like switching too much because just of that latency. And it’s like, “Oh, you can do that on Linux? Oh, that’s pretty cool.”
Lex Fridman
Yeah.
Yeah.
DHH
So I run that. And then my editor of choice now is Neovim.
So I run that. And then my editor of choice now is Neovim.
Lex Fridman
Oh, good. All right. Well, we’re out of time. No. All right. You did, for many, many years, used, what is it? TextMate.
Oh, good. All right. Well, we’re out of time. No. All right. You did, for many, many years, used, what is it? TextMate.
DHH
Yes.
Yes.
Lex Fridman
TextMate.
TextMate.
DHH
TextMate. That was the main blocker of moving away from Apple. Everything else, I thought, “Do you know what? I can swing it.” But TextMate was and is a wonderful editor, one I helped birth into this world. The programmer, Allan Odgaard, is a good friend of mine, all the way back from the party days when we were lugging our computers around.
TextMate. That was the main blocker of moving away from Apple. Everything else, I thought, “Do you know what? I can swing it.” But TextMate was and is a wonderful editor, one I helped birth into this world. The programmer, Allan Odgaard, is a good friend of mine, all the way back from the party days when we were lugging our computers around.
Lex Fridman
Nice.
Nice.
DHH
And he was a big Mac guy. And in 2005, he was writing this editor, and I helped him with the project management of keeping him on track, keeping him focused, and getting something released because I really wanted it for myself. And I thought this was the last editor. I thought I was never going to switch.
And he was a big Mac guy. And in 2005, he was writing this editor, and I helped him with the project management of keeping him on track, keeping him focused, and getting something released because I really wanted it for myself. And I thought this was the last editor. I thought I was never going to switch.
Lex Fridman
Forgive me for not knowing, but how featureful is this editor?
Forgive me for not knowing, but how featureful is this editor?
DHH
It’s quite featureful, but it’s a GUI-driven editor in some regards. It was really early on with ways of recording macros and having sophisticated syntax highlighting, and it did a bunch of firsts. And it was just a really pleasant editing experience.
It’s quite featureful, but it’s a GUI-driven editor in some regards. It was really early on with ways of recording macros and having sophisticated syntax highlighting, and it did a bunch of firsts. And it was just a really pleasant editing experience.
I think these days, a lot of people would just use VS Code. VS Code exists in the same universe as TextMate in some ways. And actually, I think it’s compatible with the original TextMate bundles, the original TextMate format. So it really trailed a path there, but it also just didn’t evolve.
Now, a lot of people saw a huge problem with that. They were like, “Oh, it needs to have more features. It needs to have all these things.” I was like, I’m happy with this text editor that hasn’t changed at all basically when Allan stopped working on it for a decade or more. I don’t need anything else. Because as our original discussion went, I don’t want an IDE. I don’t want the editor to write code for me. I want a text editor. I want to interact with characters directly.
And Neovim allows me to do that in some ways that are even better than TextMate, and I love TextMate. But Vi, as you know, once you learn the commands, and it sounds… I sometimes feel like Vi fans overplay how difficult it is to learn because it makes them perhaps seem kind of more awesome that they were able to do it. It’s not that difficult. And it doesn’t take that long, in my opinion, to learn just enough combo moves to get that high of, “Holy shit. I could not do this in any other editor.”
Lex Fridman
How long did it take you? And by the way, I don’t know. I haven’t yet… Well, I know intellectually, but just like with kids, I haven’t gone in all the way in. I haven’t used Vim.
How long did it take you? And by the way, I don’t know. I haven’t yet… Well, I know intellectually, but just like with kids, I haven’t gone in all the way in. I haven’t used Vim.
DHH
You have a treat in mind. Well, I switched in about… When I switched here about a year ago, I had three days of cursing, where I thought it was absolutely terrible and it was never going to happen, and I had three days of annoyance. And already, the next week, I was like, “This is sweet. I’m not going anywhere.”
You have a treat in mind. Well, I switched in about… When I switched here about a year ago, I had three days of cursing, where I thought it was absolutely terrible and it was never going to happen, and I had three days of annoyance. And already, the next week, I was like, “This is sweet. I’m not going anywhere.”
Lex Fridman
Oh, wow.
Oh, wow.
DHH
But I also had a bit of a headstart. About 20 years ago in the early 2000s, I tried Vim for a summer and it didn’t stick. I didn’t, for whatever reason, love it at the time. But Neovim is really good.
But I also had a bit of a headstart. About 20 years ago in the early 2000s, I tried Vim for a summer and it didn’t stick. I didn’t, for whatever reason, love it at the time. But Neovim is really good.
The key to Neovim is to realize that you don’t have to build the whole damn editor yourself. So a lot of Neovim stans are like, “Here’s how to write the config from scratch.” Over 17 episodes, that’s going to take you three weeks. I don’t care that much.
I love a great editor, I love to tailor it a little bit, but not that much. So you have to pair Neovim with this thing called LazyVim. LazyVim.org is a distribution for Neovim that takes all the drudgery out of getting an amazing editor experience right out of the box.
Lex Fridman
Ridiculous question. We talked about a bunch of programming languages. You told us how much you love JavaScript. It’s your second favorite programming language. Would TypeScript be the third then?
Ridiculous question. We talked about a bunch of programming languages. You told us how much you love JavaScript. It’s your second favorite programming language. Would TypeScript be the third then?
DHH
TypeScript wouldn’t even be in this universe. I hate TypeScript as much as I like JavaScript.
TypeScript wouldn’t even be in this universe. I hate TypeScript as much as I like JavaScript.
Lex Fridman
You hate… Oh, man. I’m not smart enough to understand the math of that. Okay. Before I ask about other programming languages, if you can encapsulate your hatred of TypeScript into something that could be human-interpretable, what would be the reasoning?
You hate… Oh, man. I’m not smart enough to understand the math of that. Okay. Before I ask about other programming languages, if you can encapsulate your hatred of TypeScript into something that could be human-interpretable, what would be the reasoning?
DHH
JavaScript smells a lot like Ruby when it comes to some aspects of its metaprogramming, and TypeScript just complicates that to an infuriating degree when you’re trying to write that kind of code. And even when you’re trying to write the normal kind of code, none of the benefits that accrue to people who like it, like auto-completion, is something I care about. I don’t care about auto-completion because I’m not using an IDE.
JavaScript smells a lot like Ruby when it comes to some aspects of its metaprogramming, and TypeScript just complicates that to an infuriating degree when you’re trying to write that kind of code. And even when you’re trying to write the normal kind of code, none of the benefits that accrue to people who like it, like auto-completion, is something I care about. I don’t care about auto-completion because I’m not using an IDE.
Now, I understand that that is part of what separates it and why I don’t see the benefits. I only see the costs. I see the extra typing, I see the type gymnastics that you sometimes have to do and where a bunch of people give up and just do any instead, right? That they don’t actually use the type system because it’s just too frustrating to use.
So I’ve ever only felt the frustration of TypeScript and the obfuscation of TypeScript in the code that gave me no payoff. Again, I understand that there is a payoff. I don’t want the payoff. So for my situation, I’m not willing to make the trade and I’m not willing to take a language that underneath is as dynamic of a language as Ruby is and then turn it into this pretend statically typed language. I find that just intellectually insulting.
Lex Fridman
Do you think it will and do you think it should die, TypeScript?
Do you think it will and do you think it should die, TypeScript?
DHH
I don’t want to take something away from people who enjoy it. So if you like TypeScript, all the power to you. If you’re using TypeScript because you think that’s what a professional program is supposed to do, here’s my permission; you don’t have to use TypeScript.
I don’t want to take something away from people who enjoy it. So if you like TypeScript, all the power to you. If you’re using TypeScript because you think that’s what a professional program is supposed to do, here’s my permission; you don’t have to use TypeScript.
Lex Fridman
There’s something deeply enjoyable about a brilliant programmer such as yourself, DHH, talking shit. It’s one of my favorite things in life. What are the top three programming languages everyone should learn if you’re talking to a beginner?
There’s something deeply enjoyable about a brilliant programmer such as yourself, DHH, talking shit. It’s one of my favorite things in life. What are the top three programming languages everyone should learn if you’re talking to a beginner?
Programming language for beginners
DHH
I would 100% start with Ruby. It is magic for beginners in terms of just understanding the core concepts of conditionals and loops and whatever, because it makes it so easy. Even if you’re just making a shell program that’s outputting to the terminal, getting hello-world running in Ruby is basically puts, P-U-T-S, space, start quotes, “Hello world,” end quotes, you’re done, right? There’s no fluff, there’s nothing to wrap it into.
I would 100% start with Ruby. It is magic for beginners in terms of just understanding the core concepts of conditionals and loops and whatever, because it makes it so easy. Even if you’re just making a shell program that’s outputting to the terminal, getting hello-world running in Ruby is basically puts, P-U-T-S, space, start quotes, “Hello world,” end quotes, you’re done, right? There’s no fluff, there’s nothing to wrap it into.
There are other languages that does that, especially the Perl or Python would be rather similar, but Go would not, Java would not. There’s a lot of other languages that have a lot more ceremony and boilerplate. Ruby has none of it. So it’s a wonderful starting language.
There’s a book called Learn to Program by Pine that uses Ruby essentially to just teach basic programming principles that I’ve seen heavily recommended. So that’s a great language.
Lex Fridman
How quickly would you go to Rails?
How quickly would you go to Rails?
DHH
It depends on what you want to do. If you want to build web applications, go to Rails right away, learn Ruby along with Rails. Because I think what really helps power through learning programming is to build programs that you want. Right? If you’re just learning it in the abstract, it’s difficult to motivate yourself to actually do it well.
It depends on what you want to do. If you want to build web applications, go to Rails right away, learn Ruby along with Rails. Because I think what really helps power through learning programming is to build programs that you want. Right? If you’re just learning it in the abstract, it’s difficult to motivate yourself to actually do it well.
Some people learn languages just for the fun of them. Most people do not. Most people learn it because they have a mission; they want to build a program, they want to become a programmer. So you got to use it for something real. And I actually find that it’s easier to learn programming that way too because it drives your learning process.
You can’t just learn the whole thing upfront. You can’t just sit down and read the language specification and then go like, “Ooh,” like Neo, “Now I know kung fu. Now I know Ruby.” It doesn’t download that way. You actually have to type it out in anger on a real program.
Lex Fridman
Yeah. Yeah, for sure.
Yeah. Yeah, for sure.
DHH
So I would start there. But then number two probably would be JavaScript because JavaScript just is the language you need to know if you want to work with the web, and the web is the greatest application platform of all time if you’re making business software or collaboration software, all this kind of stuff.
So I would start there. But then number two probably would be JavaScript because JavaScript just is the language you need to know if you want to work with the web, and the web is the greatest application platform of all time if you’re making business software or collaboration software, all this kind of stuff.
If you’re making video games, you should probably go off and learn C++ or C or something else like that. But if you’re in the realm of web applications, you got to learn JavaScript. Regardless of what else you learn, you got to learn JavaScript.
Lex Fridman
So if you’re learning Ruby, what does Ruby not have in terms of programming concepts that you would need other languages for?
So if you’re learning Ruby, what does Ruby not have in terms of programming concepts that you would need other languages for?
DHH
I don’t know if there’s any concepts missing, but it doesn’t have the speed or the low-level access of memory manipulation-
I don’t know if there’s any concepts missing, but it doesn’t have the speed or the low-level access of memory manipulation-
Lex Fridman
Sure.
Sure.
DHH
… that you would need to build a 3D gaming engine, for example. No one’s going to build that in Ruby. You could build quite low-level stuff when it comes to web technologies in Ruby, but at some point, you’re going to hit the limit and you should use something else.
… that you would need to build a 3D gaming engine, for example. No one’s going to build that in Ruby. You could build quite low-level stuff when it comes to web technologies in Ruby, but at some point, you’re going to hit the limit and you should use something else.
I’m not someone who prescribes just Ruby for everything. Just once you reach the level of abstraction that’s involved with web applications, Ruby is superb. But if you’re writing, for example, a HTTP proxy, Go is great for that. We’ve written quite a few HTTP proxies lately at the company for various reasons, including our cloud exit and so forth.
And Kevin, one of the programmers I’m working with, he writes all of that in Go. Go just have the primitives and it has the pace and the speed to do that really well. I highly recommend it. If you’re writing an HTTP general proxy, do it in Go. Great language for that. Don’t write your business logic in Go. I know people do, but I don’t see the point in that.
Lex Fridman
So what would you say are the three? So, Go, Ruby, plus Rails, JavaScript.
So what would you say are the three? So, Go, Ruby, plus Rails, JavaScript.
DHH
Yeah. If you’re interested in working with the web, I’d probably pick those three. Go, Ruby, and JavaScript.
Yeah. If you’re interested in working with the web, I’d probably pick those three. Go, Ruby, and JavaScript.
Lex Fridman
Go, Ruby, and JavaScript. Okay. Functional languages.
Go, Ruby, and JavaScript. Okay. Functional languages.
DHH
Someone’s talking about OCaml.
Someone’s talking about OCaml.
Lex Fridman
They are always going to show up. It must be some kind of OCaml industrial complex or something like this, but they always say, “Mention OCaml.”
They are always going to show up. It must be some kind of OCaml industrial complex or something like this, but they always say, “Mention OCaml.”
DHH
I love that there are people who love functional languages to that degree. Those people are not me. I don’t care at all. I care about functional principles when they help me in these isolated cases where that’s just better than everything else. But at heart, I’m an object-oriented guy. That’s just how I think about programs. That’s how I like to think about programs. That’s how I carve up a big problem space into the main language. Objects are my jam.
I love that there are people who love functional languages to that degree. Those people are not me. I don’t care at all. I care about functional principles when they help me in these isolated cases where that’s just better than everything else. But at heart, I’m an object-oriented guy. That’s just how I think about programs. That’s how I like to think about programs. That’s how I carve up a big problem space into the main language. Objects are my jam.
Lex Fridman
Yeah, me too. So I program in Lisp a bunch for AI applications for basic… So, Othello, chess engines, that kind of stuff. And I did try OCaml just to force myself to program just a very basic Game of Life, a little simulation. Lisp is just parentheses everywhere. It’s actually not readable at all.
Yeah, me too. So I program in Lisp a bunch for AI applications for basic… So, Othello, chess engines, that kind of stuff. And I did try OCaml just to force myself to program just a very basic Game of Life, a little simulation. Lisp is just parentheses everywhere. It’s actually not readable at all.
DHH
That’s the problem I’ve had with Lisp.
That’s the problem I’ve had with Lisp.
Lex Fridman
OCaml is very intuitive, very readable. It’s nice.
OCaml is very intuitive, very readable. It’s nice.
DHH
I really should pick up a language like that at some point. I’ve been programming long enough that it’s a little embarrassing that I haven’t actually done anything real in anger in a fully functional programming language.
I really should pick up a language like that at some point. I’ve been programming long enough that it’s a little embarrassing that I haven’t actually done anything real in anger in a fully functional programming language.
Lex Fridman
Yeah. But I have to figure out, I’m sure there’s an answer to this, what can I do that would be useful for me that I actually want to build?
Yeah. But I have to figure out, I’m sure there’s an answer to this, what can I do that would be useful for me that I actually want to build?
DHH
Yes. That’s my problem.
Yes. That’s my problem.
Lex Fridman
That a functional language is better suited for.
That a functional language is better suited for.
DHH
That’s right.
That’s right.
Lex Fridman
Because I really want to experience the language properly.
Because I really want to experience the language properly.
DHH
That’s right.
That’s right.
Lex Fridman
Yeah. Because at this point, I’m very object-oriented-brained.
Yeah. Because at this point, I’m very object-oriented-brained.
DHH
Yes.
Yes.
Lex Fridman
Yeah.
Yeah.
DHH
And that’s my problem too. I don’t care as much about these low-level problems in computer science. I care about the high-level. I care about writing software. I care about the abstraction layer that really floats well with web applications and business logic.
And that’s my problem too. I don’t care as much about these low-level problems in computer science. I care about the high-level. I care about writing software. I care about the abstraction layer that really floats well with web applications and business logic.
And I’ve come to accept that about myself, even though, as we talked about, when I was a kid, I really wanted to become a games programmer. And then I saw what it took to write a collision-detection engine, and I go like, “Yeah, that’s not me at all.” I’m never going to be into vector matrix manipulation or any of that stuff. It’s way too much math. And I’m more of a writing person than of a math person.
Lex Fridman
I mean, just in the way you were speaking today, you have a poetic, literary approach to programming.
I mean, just in the way you were speaking today, you have a poetic, literary approach to programming.
DHH
Yes.
Yes.
Lex Fridman
Yeah. It’s interesting.
Yeah. It’s interesting.
DHH
That’s actually exactly right. So I did actually a keynote at RailsConf 10 years ago, where I called myself a software writer. I mean, I’m not the first person to say that. “Software writer” has been in the vernacular for a long time.
That’s actually exactly right. So I did actually a keynote at RailsConf 10 years ago, where I called myself a software writer. I mean, I’m not the first person to say that. “Software writer” has been in the vernacular for a long time.
But the modern identity that most programmers adopt when they’re trying to be serious is software engineer, and I reject that label. I’m not an engineer. Occasionally, I dabble in some engineering, but the vast majority of the time, I’m a software writer. I write software for human consumption and for my own delight.
I can get away with that because I’m working in a high-level language like Ruby, working on collaboration software and to-do lists and all the other stuff. Again, if I was trying to apply my talent to writing 3D game engines, no, that’s not the right mindset. That’s not the right identity.
But I find that the software engineering identity flattens things a little bit. I’d like to think that we have software writers and software mathematicians, for example, and then those are actually richer ways of describing the abstraction level that you’re working at than “engineer.”
Lex Fridman
Yeah. And I think if AI becomes more and more successful, I think we’ll need the software writer skill more and more because it feels like that’s the realm of which… Because it’s not writer. You’re going to have to do the software, you’re going to have to be a computer person, but there’s a more… I don’t know. I just don’t want to romanticize it, but it’s more poetic, it’s more literary. It more feels like writing a good blog post than-
Yeah. And I think if AI becomes more and more successful, I think we’ll need the software writer skill more and more because it feels like that’s the realm of which… Because it’s not writer. You’re going to have to do the software, you’re going to have to be a computer person, but there’s a more… I don’t know. I just don’t want to romanticize it, but it’s more poetic, it’s more literary. It more feels like writing a good blog post than-
DHH
I actually wish that AI had a bit higher standards for writing. I find the fact that it accepts my slobby, incomplete sentences a little offensive. I wish there was a strict mode for AI where it would snap my fingers if I was just feeding it keywords and like, “Speak proper. Do pronunciation, do punctuation.” Because I love that. I love crafting a just-right sentence that hasn’t been boiled down, that has no meat on it, has no character in it. It’s succinct, it’s not overly flowery. It’s just right.
I actually wish that AI had a bit higher standards for writing. I find the fact that it accepts my slobby, incomplete sentences a little offensive. I wish there was a strict mode for AI where it would snap my fingers if I was just feeding it keywords and like, “Speak proper. Do pronunciation, do punctuation.” Because I love that. I love crafting a just-right sentence that hasn’t been boiled down, that has no meat on it, has no character in it. It’s succinct, it’s not overly flowery. It’s just right.
That writing phase to me is just addictive. And I find that when programming is the best, it’s almost equivalent exactly to that. You also have to solve a problem. You’re not just communicating a solution. You have to actually figure out what are you trying to say. But even writing has that.
Half the time when I start writing a blog post, I don’t know exactly which arguments I’m going to use; they develop as part of the writing process. And that’s how writing software happens too. You know roughly the kind of problem you’re trying to solve. You don’t know exactly how you’re going to solve it. And as you start typing, the solution emerges.
Lex Fridman
And actually, as far as I understand, you and Jason are working on a new book. It’s in the early days of that kind of topic. I think he said… he tweeted that it’s going to be titled something like, “We don’t know what we’re doing upfront” or something like that. That kind of topic. And you figure it out along the way.
And actually, as far as I understand, you and Jason are working on a new book. It’s in the early days of that kind of topic. I think he said… he tweeted that it’s going to be titled something like, “We don’t know what we’re doing upfront” or something like that. That kind of topic. And you figure it out along the way.
DHH
That’s a big part of it; trying to give more people the permission to trust their own instincts and their own gut and realizing that developing that supercomputer in your stomach is actually the work of a career and that you should not discard those feelings in preference to over… or not even complicated; to analytics, to intellectualism.
That’s a big part of it; trying to give more people the permission to trust their own instincts and their own gut and realizing that developing that supercomputer in your stomach is actually the work of a career and that you should not discard those feelings in preference to over… or not even complicated; to analytics, to intellectualism.
Very often when we look at the big decisions we’ve had to make, they’ve come from the gut, where you cannot fully articulate why do I think this is the right thing. Well, because I’ve been in this business for 20 years and I’ve seen a bunch of things and I’ve talked to a bunch of people, and that is percolating into this being the right answer.
A lot of people are very skeptical about that in business or unable to trust it because it feels like they can’t rationalize. Why are we doing something? Well, because I feel like it, damn it. That’s a great privilege of being a bootstrapped, independent founder who don’t owe their business to someone else and doesn’t have to produce a return because I feel like a lot of the bullshit really creeps in when you’re trying to rationalize to other people why you do the things you do and why you take the decisions that you do.
If you don’t have anyone to answer to, you are free to follow your gut, and that’s hell of an enjoyable way to work, and it’s also and very often the correct way to work. Your gut knows a lot. You can’t articulate it, but it’s spot-on more times than not.
Lex Fridman
Yeah. Having to make a plan can be a paralyzing thing. I suppose there’s different kinds of brains. And first of all, I can’t wait to read that book if it materializes.
Yeah. Having to make a plan can be a paralyzing thing. I suppose there’s different kinds of brains. And first of all, I can’t wait to read that book if it materializes.
I often feel like in the more interesting things I do in my life, I really don’t know what I’m doing upfront. And I think there’s a lot of people around me that care for me that really want me to know what I’m doing. They’re like, “What’s the plan? Why are you doing this crazy thing?”
And if I had to wait until I have a plan, I’m not going to do it. They have different brains on this kind of stuff. Some people really are planners and it maybe energizes them, but I think most creative pursuits, most really interesting, most novel pursuits are like, you kind of have to just take the leap and then just figure out as you go.
DHH
My favorite essay in Rework is the last one, and it’s entitled, “Inspiration is perishable.” And I think that captures a lot of it, that if you take the time to do a detailed plan, you may very well have lost the inspiration by the time you’re done.
My favorite essay in Rework is the last one, and it’s entitled, “Inspiration is perishable.” And I think that captures a lot of it, that if you take the time to do a detailed plan, you may very well have lost the inspiration by the time you’re done.
If you follow the inspiration in that moment and trust your gut, trust your own competence that you will figure it out, you’re going to get so much more back. You’re going to go on the adventure you otherwise wouldn’t have, whether that’s just the business decisions or life decision. You have to seize that inspiration.
There’s a great set of children’s books written by this Japanese author about chasing an idea and trying to get a hold of it, and it’s beautifully illustrated as an idea is something that’s floating around, as something you have to catch and latch onto, that I really feel captures this notion that inspiration is perishable; it’ll disappear. If you just put it back on the shelf and say, “Well, I got to be diligent about this, I got to line up a plan,” you may run out, and then there’s no steam to keep going.
Open source
Lex Fridman
I have to ask you about open source. What does it take to run a successful open source project? You’ve spoken about that it’s a misconception that open source is democratic. It’s actually meritocratic. That’s a beautiful way to put it. So there often is a benevolent dictator at the top often. So can you just speak to that, having run successful open source projects yourself and being a benevolent dictator yourself?
I have to ask you about open source. What does it take to run a successful open source project? You’ve spoken about that it’s a misconception that open source is democratic. It’s actually meritocratic. That’s a beautiful way to put it. So there often is a benevolent dictator at the top often. So can you just speak to that, having run successful open source projects yourself and being a benevolent dictator yourself?
DHH
Which is going to be a bit of a biased piece of evidence here, but-
Which is going to be a bit of a biased piece of evidence here, but-
Lex Fridman
Why monarchy is best.
Why monarchy is best.
DHH
It’s great. We should definitely have dictators and they should control everything, especially when the dictator is me. Now, well, I think I learned very early on that a quick way to burn out in open source is to treat it as a business, as though your users are customers, as though they have claims of legitimacy on your time and your attention and your direction.
It’s great. We should definitely have dictators and they should control everything, especially when the dictator is me. Now, well, I think I learned very early on that a quick way to burn out in open source is to treat it as a business, as though your users are customers, as though they have claims of legitimacy on your time and your attention and your direction.
Because I faced this almost immediately with Ruby on Rails. As soon as it was released, there were a million people who had all sorts of opinions about where I ought to take it. And not just opinions, but actually demands. “Unless you implement an Oracle database adapter, this is always going to be a toy.” It was actually more or less that exact demand that prompted me to have a slide at one of the early Rails conferences that just said, “Fuck you.”
Lex Fridman
Yeah, I saw that.
Yeah, I saw that.
DHH
I’m not going to do what you tell me to. I’m here as a bringer of gift. I am sharing code that I wrote on my own time, on my own volition. And you don’t have to say thank you. I mean, it’d be nice if you did. You can take the code and do whatever you want with it, you can contribute back if you want, but you can’t tell me what to do or where to go or how to act.
I’m not going to do what you tell me to. I’m here as a bringer of gift. I am sharing code that I wrote on my own time, on my own volition. And you don’t have to say thank you. I mean, it’d be nice if you did. You can take the code and do whatever you want with it, you can contribute back if you want, but you can’t tell me what to do or where to go or how to act.
I’m not a vendor. This is a fundamental misconception that users of open source occasionally step into because they’re used to buying software from companies who really care about their business. I care about people using my software, I think it’s great, but we don’t have a transactional relationship. I don’t get something back when you tell me what to do, except grief, and I don’t want it, so you can keep it.
So my open source philosophy from the start has been I got to do this primarily for me. I love when other people find use in my open source. It’s not my primary motivation. I’m not primarily doing it for other people. I’m primarily doing it for me and my own objectives.
Because as Adam Smith said, it’s not for the benevolence of the butcher that we expect our daily meat. It’s for his self-interest. And I actually find that to be a beautiful thought that our commons increase in value when we all pursue our self-interest, certainly in the realm of open source.
This is also why I reject this notion that open source is in some sort of crisis, that there’s a funding crisis, that we have to spend more. No, we don’t. Open source has never been doing better. Open source has never controlled more domains in software than it has right now. There is no crisis.
There’s a misconception from some people making open source and from a lot of people using open source that open source is primarily like commercial software; something you buy and something where you can then make demands as a customer and that the customer is always right. The customer is not always right, not even in business, but certainly not in open source.
In open source, the customer as it is, is a receiver of gifts. We are having a gift exchange. I show up and give you my code. If you like it, you can use it. And if you have some code that fits in with where I’m going with this, I would love to get those gifts back. And we can keep trading like that.
I give you more gifts. You give me some of your gifts. Together, we pool all the gifts such that someone showing up brand new just get a mountain of gifts. This is the magic thing of open source is it increases the total sum value of what’s in the commons when we all pursue our own self-interest.
So I’m building things for Rails that I need. And you know what? You want me to do that. You do not want me to build things that I don’t need on behalf of other people because I’ll do a crap job. I build much better software when I can evaluate the quality of that software by my own use.
I need this feature. I’m going to build a good version of that feature, and I’m going to build just enough just for me. So I’m not going to bloat it. I’m not trying to attract the customer here. I’m not trying to see some angle. I’m just building what I need. And if you go into open source with that mentality that you’re building for you and everything else is a bonus, I think you have all the ingredients to go the distance.
I think the people who burn out in open source is when they go in thinking, “I’m making all these gifts. I don’t really need them myself, but I’m hoping someone else does and maybe they’ll also give me some money.” That’s a losing proposition. It never basically works.
If you want money for your software, you should just sell it. We have a perfectly fine model of commercial software that people can make that kind and then they can sell it. But I find a lot of confusion, let’s just call it that politely, in open source contributors who want to have their cake and eat it too.
They like the mode of working with open source, they maybe even like the status that comes from open source, but they also would like to earn a living for making that open source. And therefore, they occasionally end up with the kind of grievances that someone who feels underappreciated at work will develop when others aren’t doing enough to recognize their great gifts.
Lex Fridman
And then they might walk away. I wish I had more insight into their mind state of the individual people that are running these projects, if they’re feeling sad or they need more money. It’s just such a dark box.
And then they might walk away. I wish I had more insight into their mind state of the individual people that are running these projects, if they’re feeling sad or they need more money. It’s just such a dark box.
DHH
It can be.
It can be.
Lex Fridman
I mean, of course, there’s some communication, but I just sadly see too often they just walk away.
I mean, of course, there’s some communication, but I just sadly see too often they just walk away.
DHH
Right. And I think that’s actually part of the beauty of open source.
Right. And I think that’s actually part of the beauty of open source.
Lex Fridman
Is walking away.
Is walking away.
DHH
You are not obligated to do this code forever. You’re obligated to do this for as long as you want to do it. That’s basically your own obligation.
You are not obligated to do this code forever. You’re obligated to do this for as long as you want to do it. That’s basically your own obligation.
Lex Fridman
Okay, so you might criticize this and push back. You did write a blog post on forever, ” Until the end of the internet” with [inaudible 05:39:32]. There is a beautiful aspect, and you found a good balance there. But I don’t know, you’re bringing so much joy to people with this thing you created. It’s not an obligation, but there’s a real beauty to taking care of this thing you’ve created.
Okay, so you might criticize this and push back. You did write a blog post on forever, ” Until the end of the internet” with [inaudible 05:39:32]. There is a beautiful aspect, and you found a good balance there. But I don’t know, you’re bringing so much joy to people with this thing you created. It’s not an obligation, but there’s a real beauty to taking care of this thing you’ve created.
DHH
There is.
There is.
Lex Fridman
And not forgetting… I think what the open source creator is not seeing enough, how many lives you’re making better. There’s certain pieces of software that I just-
And not forgetting… I think what the open source creator is not seeing enough, how many lives you’re making better. There’s certain pieces of software that I just-
Lex Fridman
… lives you’re making better. There’s certain pieces of software that I just quietly use a lot and they bring my life joy and I wish I could communicate that well. There’s ways to donate, but it’s inefficient. It’s usually hard to donate.
… lives you’re making better. There’s certain pieces of software that I just quietly use a lot and they bring my life joy and I wish I could communicate that well. There’s ways to donate, but it’s inefficient. It’s usually hard to donate.
DHH
It is. There’s some ways for some people that made it easier. GitHub donations is one way of doing it. I donate to a few people even though I don’t love the paradigm. I also accept that we can have multiple paradigms. I accept that I can do open source for one set of motivations and other people can do open source for other motivations. We don’t all have to do it the same way, but I do want to counter the misconception that open source is somehow in a crisis unless we all start paying for open source. That model already exists. It’s commercial software. It works very well and plenty of great companies have been built off the back of it and the expectations are very clear. I pay you this amount and I get this software.
It is. There’s some ways for some people that made it easier. GitHub donations is one way of doing it. I donate to a few people even though I don’t love the paradigm. I also accept that we can have multiple paradigms. I accept that I can do open source for one set of motivations and other people can do open source for other motivations. We don’t all have to do it the same way, but I do want to counter the misconception that open source is somehow in a crisis unless we all start paying for open source. That model already exists. It’s commercial software. It works very well and plenty of great companies have been built off the back of it and the expectations are very clear. I pay you this amount and I get this software.
Open source, once you start mixing money into, it gets real muddy real fast, and a lot of it’s just from those misaligned expectations that if you feel like you’re starving artists as an open source developer and you are owed X amount of money because your software is popular, you’re delusional and you need to knock that off. Just get back on track where you realize that you’re putting gifts into the world and if you get something back in terms of monetary compensation, okay, that’s a bonus. But if you need that money back in terms of monetary compensation, just charge for software or go work for a software company that will employ you to do open source. There’s tons of that. That is probably actually the primary mode that open source software is being developed in the world today. Commercial companies making open source that they need themselves and then contributing it back.
WordPress drama
Lex Fridman
So I’m glad you drew some hard lines. Here is a good moment to bring up what I think is maybe one of the greatest open source projects ever, WordPress. And you spoke up in October 24 about some of the stuff that’s been going on with WordPress’s founder, Matt Mullenweg, in a blog post, “Open source royalty and mad kings,” is a really good blog post on just the idea of Benevolent Dictators For Life, this model for open source projects. And then the basic implication was that Matt, as the BDFL of WordPress has lost his way a bit with this battle with WP Engine. So I should also say that I really love WordPress. It brings me joy. I think it’s a beacon of what open source could be. I think it’s made the internet better, a lot of people to create wonderful websites. And I also think, now you might disagree with this, but from everything I’ve seen, WP Engine just gives me bad vibes.
So I’m glad you drew some hard lines. Here is a good moment to bring up what I think is maybe one of the greatest open source projects ever, WordPress. And you spoke up in October 24 about some of the stuff that’s been going on with WordPress’s founder, Matt Mullenweg, in a blog post, “Open source royalty and mad kings,” is a really good blog post on just the idea of Benevolent Dictators For Life, this model for open source projects. And then the basic implication was that Matt, as the BDFL of WordPress has lost his way a bit with this battle with WP Engine. So I should also say that I really love WordPress. It brings me joy. I think it’s a beacon of what open source could be. I think it’s made the internet better, a lot of people to create wonderful websites. And I also think, now you might disagree with this, but from everything I’ve seen, WP Engine just gives me bad vibes.
I think they’re not the good guy in this. I don’t like it. I understand the frustration, I understand all of it, but I don’t think that excuses the behavior. There is a bit of… See this kind of counter to a little bit what you said, which is when you have an open source project of that size, there is a bit of a… When you’re the king of a project of a kingdom that large, there’s a bit of responsibility. Anyway, could you speak maybe, to your empathy of Matt and to your criticism? And maybe paint a path of how he and WordPress can be winning again.
DHH
First, I echo what you said about what a wonderful thing it is that WordPress success, there are not many projects in the open source world or in the world at large that has had as big of an impact on the internet as WordPress has. He deserves a ton of accolades for that work. So that was my engagement, essentially my premise. Do you know what? I had tremendous respect for what Matt has built with WordPress, what that entire ecosystem has built around itself. It’s a true marvel, but there’s some principles that are larger than my personal sympathies to the characters involved. I agree. The Silver Lake private equity company that’s involved with WP Engine is not my natural ally. I’m not the natural ally of private equity doing some game with VP Engine. That’s not my interest in the case. My interest is essentially a set of principles and the principles are if you release something as an open source, people are free to use it as they see fit and they’re free to donate code, or resources, or money back to the community as they see fit.
First, I echo what you said about what a wonderful thing it is that WordPress success, there are not many projects in the open source world or in the world at large that has had as big of an impact on the internet as WordPress has. He deserves a ton of accolades for that work. So that was my engagement, essentially my premise. Do you know what? I had tremendous respect for what Matt has built with WordPress, what that entire ecosystem has built around itself. It’s a true marvel, but there’s some principles that are larger than my personal sympathies to the characters involved. I agree. The Silver Lake private equity company that’s involved with WP Engine is not my natural ally. I’m not the natural ally of private equity doing some game with VP Engine. That’s not my interest in the case. My interest is essentially a set of principles and the principles are if you release something as an open source, people are free to use it as they see fit and they’re free to donate code, or resources, or money back to the community as they see fit.
You may disagree about whether they’ve done enough, whether they should do more, but you can’t show up after you’ve given the gift of free software to the world and then say, “Now that you’ve used that gift, you actually owe me a huge slide of your business because you got too successful using the thing I gave you for free.” You don’t get to take a gift back. That’s why we have open source licenses. They stipulate exactly what the obligations are on both sides of the equation. The users of open source don’t get to demand what the makers of open source do and how they act and the makers of open source don’t get to suddenly show up with a ransom note to the users and say, “Actually you owe me for all sorts of use.” I’m 100% allergic to that kind of interaction. And I think Matt unfortunately for whatever reason, got so wrapped up in what he was owed that he failed to realize what he was destroying. WordPress and Automatic already makes a ton of money.
This is part of the wonder of WordPress. This is a project that generates 100s of millions of dollars and Matt didn’t feel like he was getting enough of that. That’s not a good argument, bro. You can’t just violate the spirit and the letter of these open source licenses and just start showing up with demand letters even to characters that are not particularly sympathetic. This goes to the root of my interpretation of open source in general. The GPL is a particular license that actually demands code from people who use it under certain circumstances. I’ve never liked the GPL. I don’t want your shitty code. If you don’t want to give it to me, what am I going to do with that? Some code dump that you’ve… I’m not on board with that part of Stallman’s vision at all. I love the MIT license. To me that is the perfect license because it is mercilessly short.
I think it’s two paragraphs, three paragraphs, really short and it basically says, “Here’s some software. It comes with no warranty. You can’t sue me. You can’t demand anything, but you can do whatever the hell you want with it. Have a nice life.” That’s a perfect open source interaction in my opinion, and that license needs to be upheld. These licenses in general, even the GPL, even if I don’t like it, we have to abide by them because if we just set aside those licenses, when we in a moment’s notice feel like something’s slightly unfair, we’ve lost everything. We’ve lost the entire framework that allowed open source to prosper and allowed open source to become such an integral part of commerce too. I mean, back when open source was initially finding its feet, it was at war with commercial software. Stallman is at war with commercial software and always has been.
Bill Gates was in return at war with open source for the longest time. The open source licenses and the clarity that they provide allowed us to end that war. Today, commercial software and open source software can peacefully coexist. I make commercial software, I sell Basecamp, I sell HEY, and then I also make a bunch of open source software that I give away for free gifts. That can’t happen if we start violating these contracts. No commercial company is going to go, “Let me base my next project off this piece of open source if I’m also running the liability that some Matt maker is going to show up seven years in and demand I give them $50 million.” That’s not an environment conducive to commerce collaboration or anything else and it’s just basically wrong. I think there’s one analysis that’s all about the practical outcomes of this, which I think are bad.
There’s also an argument that’s simply about ethics. This is not right. You can’t just show up afterwards and demand something. This is not too dissimilar in my opinion, to the whole Apple thing we talked about earlier, Apple just showing up and feeling like they’re entitled to 30% of everyone’s business. No, that’s not right. That’s not fair. So I think Matt unfortunately steered himself blind on the indignity he thought was being perpetrated against him because there was all this money being made by BP Engine making a good product and not giving quite enough back in Matt’s opinion, tough cookie.
Lex Fridman
I think there, maybe I’m reading too much into it, but there might be some personal stuff too which weren’t not only not giving enough but probably implicitly promising that they will give and then taking advantage of him in that way in his mind. Just like interpersonal interaction and then you get interpersonally frustrated.
I think there, maybe I’m reading too much into it, but there might be some personal stuff too which weren’t not only not giving enough but probably implicitly promising that they will give and then taking advantage of him in that way in his mind. Just like interpersonal interaction and then you get interpersonally frustrated.
DHH
I get that.
I get that.
Lex Fridman
You forget the bigger picture ethics of it. It’s like when a guy keeps promising he’ll do something and then you realize you wake up one day a year or two later, “Wait a minute, I was being lied to this whole time,” and that I don’t even know if it’s about money.
You forget the bigger picture ethics of it. It’s like when a guy keeps promising he’ll do something and then you realize you wake up one day a year or two later, “Wait a minute, I was being lied to this whole time,” and that I don’t even know if it’s about money.
DHH
I’d get mad too. It’s totally fine to get mad when people disappoint you. That’s not justification for upending decades of open source licensees and the essential de facto case law we’ve established around it. This is why I chose to even weigh in on this because I like WordPress. I don’t use WordPress. I’m not a part of that community. I don’t actually have a dog in this fight. I’m biased if anything towards Matt just as a fellow BDFL. I would like to see him do well with this, but I also think there’s some principles that stake here that ring much louder. I don’t want Rails to suddenly be tainted by the fact that it’s open source and whether companies can rely on it and build businesses on it because wait, maybe one day I’m going to turn Matt and I’m going to turn Matt King and I’m going to show up with a demand ransom letter. Now screw that. We have way more to protect here. There’s way more at stake than your personal beef with someone or your perceived grievance over what you’re owed.
I’d get mad too. It’s totally fine to get mad when people disappoint you. That’s not justification for upending decades of open source licensees and the essential de facto case law we’ve established around it. This is why I chose to even weigh in on this because I like WordPress. I don’t use WordPress. I’m not a part of that community. I don’t actually have a dog in this fight. I’m biased if anything towards Matt just as a fellow BDFL. I would like to see him do well with this, but I also think there’s some principles that stake here that ring much louder. I don’t want Rails to suddenly be tainted by the fact that it’s open source and whether companies can rely on it and build businesses on it because wait, maybe one day I’m going to turn Matt and I’m going to turn Matt King and I’m going to show up with a demand ransom letter. Now screw that. We have way more to protect here. There’s way more at stake than your personal beef with someone or your perceived grievance over what you’re owed.
Lex Fridman
What would you recommend? What do you think he should do, can do to walk it back to heal?
What would you recommend? What do you think he should do, can do to walk it back to heal?
DHH
Decide. This is the curious thing. He could decide to give this up. That’s very, very difficult for driven ambitious people to do, to accept that they’re wrong and to give up and lay down their sword. So I had a hope earlier on in this that was possible. I haven’t seen any evidence that Matt is interested in that and I find that deeply regretful, but that’s his prerogative. I continue to speak out when he’s violating the spirit and ethics of open source, but I wish he would just accept that this was a really bad idea. He made a bad bet and I think he thought he’d just get away with it, that they’d just pay up and that he could put pressure.
Decide. This is the curious thing. He could decide to give this up. That’s very, very difficult for driven ambitious people to do, to accept that they’re wrong and to give up and lay down their sword. So I had a hope earlier on in this that was possible. I haven’t seen any evidence that Matt is interested in that and I find that deeply regretful, but that’s his prerogative. I continue to speak out when he’s violating the spirit and ethics of open source, but I wish he would just accept that this was a really bad idea. He made a bad bet and I think he thought he’d just get away with it, that they’d just pay up and that he could put pressure.
I mean, I know that temptation. When you sit as the head of a very important project, you know that comes with a great degree of power and you really need a great degree of discipline to rein that in and not exercise that power at every step where you feel aggrieved. I’ve felt aggrieved a million times over in the 20 plus years of Ruby on Rails. I’ve really tried very hard not to let those, sometimes petty, sometimes substantial grievances over time seep in to the foundation of the ecosystem and risk ruining everything.
Money and happiness
Lex Fridman
As the king of the Rails kingdom. Has the power gotten to your head over the years?
As the king of the Rails kingdom. Has the power gotten to your head over the years?
DHH
I’m sure it has. I mean, who wouldn’t?
I’m sure it has. I mean, who wouldn’t?
Lex Fridman
Do you pace around in your chamber? [inaudible 05:53:12]-
Do you pace around in your chamber? [inaudible 05:53:12]-
DHH
I do, occasionally, and I do marvel at both what’s been built, what’s been possible. Over a million applications have been made with Ruby on Rails by one estimate that I’ve seen. Businesses like Shopify and GitHub and a million others have been built on top of something that I started. That’s very gratifying. But you really have to be careful not to smell your own exhaust too much and you have to be just as careful not to listen too much to the haters and not to listen too much to the super fans either that you assess the value and the principles of what you’re working towards on its own merits, on your own scoreboard. I try to block that out and then just go, “Well, I’m working on Rails because I love to write Ruby. I love to use Ruby to make web applications. That’s my North Star and I’ll continue to do that and I’ll continue to share all of the open source gifts that I uncover along the ways,” and that’s it. That’s enough too.
I do, occasionally, and I do marvel at both what’s been built, what’s been possible. Over a million applications have been made with Ruby on Rails by one estimate that I’ve seen. Businesses like Shopify and GitHub and a million others have been built on top of something that I started. That’s very gratifying. But you really have to be careful not to smell your own exhaust too much and you have to be just as careful not to listen too much to the haters and not to listen too much to the super fans either that you assess the value and the principles of what you’re working towards on its own merits, on your own scoreboard. I try to block that out and then just go, “Well, I’m working on Rails because I love to write Ruby. I love to use Ruby to make web applications. That’s my North Star and I’ll continue to do that and I’ll continue to share all of the open source gifts that I uncover along the ways,” and that’s it. That’s enough too.
I don’t have to get all of it out of it. This is sometimes just as with the guy who thought I’d given up on being Jira or something, instead of doing Basecamp, there are people over the years who’ve asked like, “Why didn’t you charge for Rails? Don’t you know how much money had been made off Rails?” If we just look at something like Shopify, it’s worth billions of dollars. I’m not a billionaire and so freaking what? I got more than enough. I got plenty of my share.
I will say though, I’m also introspective enough to realize that if it hadn’t panned out as well as it did for me on my own business, maybe I would’ve been more tempted. Maybe if you see other people build huge successful companies off the back of your work and you really don’t have a pot to piss in, you might be tempted to get a little upset about that. I’ve seen that in the Rails world as well, where there are people who contributed substantial bodies of work and then got really miffed when they didn’t feel like they got enough back. I was fortunate enough that the business that Jason and I built with Ruby on Rails was as successful as it was and I made the money I needed to make that I didn’t need to chase the rest of it.
Lex Fridman
But we should also just make explicit that many people in your position chase the money. It’s not that difficult to chase. Basically you turned away money, you made a lot of decisions that just turned away money.
But we should also just make explicit that many people in your position chase the money. It’s not that difficult to chase. Basically you turned away money, you made a lot of decisions that just turned away money.
DHH
Maybe. I also think of this example with Matt. He probably thought there was easy money for the taking and it wasn’t so easy, was it? It looked like low-hanging dollar bills and they turned out to be some really sour grapes. It turned out he probably destroyed vast sums of money by undermining the whole WordPress trust and the ecosystem and putting question marks in the heads of folks who would choose to use WordPress or something else going forward. So I often think when people think like, “Oh, you left money on the table.” First of all, so what? I don’t have to have all the money, but second of all, maybe the money wasn’t on the table at all.
Maybe. I also think of this example with Matt. He probably thought there was easy money for the taking and it wasn’t so easy, was it? It looked like low-hanging dollar bills and they turned out to be some really sour grapes. It turned out he probably destroyed vast sums of money by undermining the whole WordPress trust and the ecosystem and putting question marks in the heads of folks who would choose to use WordPress or something else going forward. So I often think when people think like, “Oh, you left money on the table.” First of all, so what? I don’t have to have all the money, but second of all, maybe the money wasn’t on the table at all.
Lex Fridman
And maybe the cost, even if you got the money, maybe the cost in other ways like we’ve talked about, would outweigh all the money that you could have possibly gotten. I think you said that the thing that makes you happy is flow and tranquility. Those two things. Really beautifully put. And gaining money might assign to your responsibility of running a larger thing that takes away the flow that you gain from being… Fundamentally for you what flow means is programming and then tranquility is like… I think you also have a beautiful post of like, “Nirvana is an empty schedule.”
And maybe the cost, even if you got the money, maybe the cost in other ways like we’ve talked about, would outweigh all the money that you could have possibly gotten. I think you said that the thing that makes you happy is flow and tranquility. Those two things. Really beautifully put. And gaining money might assign to your responsibility of running a larger thing that takes away the flow that you gain from being… Fundamentally for you what flow means is programming and then tranquility is like… I think you also have a beautiful post of like, “Nirvana is an empty schedule.”
DHH
When I look at a upcoming week and I see that I have no scheduled meetings at all, which is quite common, or maybe I just have one thing for one hour on one day, I think to myself, “Do you know what? This could very easily have been very different. We could have been running a company of 100s of people or 1000s of people and my entire calendar would’ve been packed solid with little Tetris blocks of other people’s demands on my attention and time and I would’ve been miserable as fuck. And I look at that and go, “What more can I ask for?” Which is a really nice state of being, I’d actually say. I didn’t have this always. I did have, early on in my career, some sense of I need a little more, a little more security. And I remember this really interesting study where a bunch of researchers asked people who had made certain amounts of money, “How much money would it take for you to feel secure?”
When I look at a upcoming week and I see that I have no scheduled meetings at all, which is quite common, or maybe I just have one thing for one hour on one day, I think to myself, “Do you know what? This could very easily have been very different. We could have been running a company of 100s of people or 1000s of people and my entire calendar would’ve been packed solid with little Tetris blocks of other people’s demands on my attention and time and I would’ve been miserable as fuck. And I look at that and go, “What more can I ask for?” Which is a really nice state of being, I’d actually say. I didn’t have this always. I did have, early on in my career, some sense of I need a little more, a little more security. And I remember this really interesting study where a bunch of researchers asked people who had made certain amounts of money, “How much money would it take for you to feel secure?”
They’d ask people who had a million dollars net worth, “How much money do you need?” “Probably need $2 million. $2 million, then I’d be good.” Then they asked people with a net worth of $5 million, how much do you need?” “10. I need 10.” Ask people with $10 million, “What do you need?” “20.” Every single time people would need double of what they did. I did that for a couple of doublings until I realized, “You know what? This is silly. I’m already where I wished I would be and a million times over, so what less is there to pursue?” Now that doesn’t mean that if more money is coming my way, I’m going to say no to it. Of course not. But, it does mean that I’m free to set other things higher. And I also do think you realize, as Jim Carrey would say, “I wish everyone would get all the money that they wished for and they’d realize it wasn’t the answer.”
That money solves a whole host of problems and anxieties and then it creates a bunch of new ones and then it also doesn’t touch a huge swath of the human experience at all. The world is full of miserable, anxious, hurt, rich people. It’s also full of miserable, anxious, poor people and I’d rather be a miserable, anxious, rich person than a poor person. But it isn’t this magic wand that make everything go away, and that’s again one of those insights, just like having children, that you cannot communicate in words. I’ve never been able to persuade a person who’s not wealthy that wealth wasn’t going to solve all their problems.
Lex Fridman
One quote you’ve returned to often that I enjoy a lot is the Coco Chanel quote of, “The best things in life are free and the second-best things are very, very expensive.” And I guess the task is to focus on surrounding yourself with the best things in life like family and all of this and not caring about the other stuff.
One quote you’ve returned to often that I enjoy a lot is the Coco Chanel quote of, “The best things in life are free and the second-best things are very, very expensive.” And I guess the task is to focus on surrounding yourself with the best things in life like family and all of this and not caring about the other stuff.
DHH
I would easily say you can care about the other stuff. Just know the order of priority. If you are blessed with a partner that you love, some children that you adore, you’ve already won the greatest prize that most humans are able to achieve. Most humans in this world, if they are of marital age and they have children, if you ask them what’s the most important thing they would all say that, they would all say that, no matter whether they’re rich or poor. It’s easy to lose sight of that when you’re chasing the second-best things because do you know what? They’re also very nice.
I would easily say you can care about the other stuff. Just know the order of priority. If you are blessed with a partner that you love, some children that you adore, you’ve already won the greatest prize that most humans are able to achieve. Most humans in this world, if they are of marital age and they have children, if you ask them what’s the most important thing they would all say that, they would all say that, no matter whether they’re rich or poor. It’s easy to lose sight of that when you’re chasing the second-best things because do you know what? They’re also very nice.
I really like that Pagani Sonda. It was a very expensive car and I would’ve had no chance of acquiring it if I hadn’t become rather successful in business. So I don’t want to dismiss it either. It’s great fun to have money. It’s just not as fun for quite as long or as deep as you think it is. And these other things, having an occupation and a pursuit that you enjoy, being able to carry burdens with a stiff up a lip and with again, a sense of meaning, is incredible. To have family, to have friends, to have hobbies, to have all these things that are actually available to most people around the world, that’s winning. And it doesn’t mean you have to discount your ambitions. It doesn’t mean you can’t reach for more, but it does mean it’s pretty dumb if you don’t realize that it’s not going to complete you in some hocus-pocus woo sense to make more. It really isn’t.
Hope
Lex Fridman
What gives you hope about the future of this whole thing we have going on here, human civilization?
What gives you hope about the future of this whole thing we have going on here, human civilization?
DHH
I find it easier to be optimistic than pessimistic because I don’t know either way. So if I get to choose, why not just choose to believe it’s going to pan out? “We suffer more in our imagination than we do in reality,” that’s one of the quotes out of Stoicism. And I also think we have a tendency, a lot of humans have a tendency to be pessimistic in advance for things they don’t know how it’s going to pan out. Climate change, for example, is making a lot of people very anxious and very pessimistic about the future. You know nothing. 40 years ago, we thought the problem was that the planet was going to be too cool. I happen to believe that it’s probably correct that the planet is getting too hot and that CO2 has something to do with it. Whether we have the right measures to fix it in time, if that’s even possible or not, is completely up in the air and we don’t know.
I find it easier to be optimistic than pessimistic because I don’t know either way. So if I get to choose, why not just choose to believe it’s going to pan out? “We suffer more in our imagination than we do in reality,” that’s one of the quotes out of Stoicism. And I also think we have a tendency, a lot of humans have a tendency to be pessimistic in advance for things they don’t know how it’s going to pan out. Climate change, for example, is making a lot of people very anxious and very pessimistic about the future. You know nothing. 40 years ago, we thought the problem was that the planet was going to be too cool. I happen to believe that it’s probably correct that the planet is getting too hot and that CO2 has something to do with it. Whether we have the right measures to fix it in time, if that’s even possible or not, is completely up in the air and we don’t know.
If you convince yourself with such certainty that the world is going to turn to shit. It is, right up here in your head, today. Climate change might wipe out this entire species in 200 years. It’s not next year. It’s not 10 years from now. Life might become more unpleasant and there might be more negative effects and so on. Yes, okay, but then deal with that hardship when it arrives. Don’t take that in advance. How are you helping earth by just walking around being depressed?
Lex Fridman
I think our whole conversation today is also an indication, it’s just two humans talking. There’s billions of us and there is something about us that wants to solve problems and build cool stuff and so we’re going to build our way out of whatever shit we get ourselves into. This is what humans do. We create problems for ourselves and figure out how to build rocket ships to get out of those problems. And sometimes, the rocket ships create other problems like nuclear warheads and then we’ll, I hope, figure out ways how to avoid those problems. And then, there’ll be nanobots and then the aliens will come and it’ll be a massive war between the nanobots and the aliens and that will bring all of us humans together.
I think our whole conversation today is also an indication, it’s just two humans talking. There’s billions of us and there is something about us that wants to solve problems and build cool stuff and so we’re going to build our way out of whatever shit we get ourselves into. This is what humans do. We create problems for ourselves and figure out how to build rocket ships to get out of those problems. And sometimes, the rocket ships create other problems like nuclear warheads and then we’ll, I hope, figure out ways how to avoid those problems. And then, there’ll be nanobots and then the aliens will come and it’ll be a massive war between the nanobots and the aliens and that will bring all of us humans together.
DHH
The funny thing, just to pick up one of the points you mentioned, the atom bomb, for example. When that was first invented, a lot of people thought we have essentially ended life on earth or maybe we prevented World War III from happening in the past 80 years because assured, neutral annihilation kept the superpowers from attacking each other at least head-on and kept their fighting to proxy wars. You know what? Proxy wars are not great, but they’re probably better than World War III with nuclear weapons. So it’s quite difficult in the moment to tell what’s actually benefit and what’s not, and I think we should be a bit more humble. I’ve certainly become more humble over time of thinking I know which way it’s going to turn. I think the pandemic was a huge moment for a lot of people where there was so much certainty about whether this intervention worked or that intervention didn’t work and most people were wrong.
The funny thing, just to pick up one of the points you mentioned, the atom bomb, for example. When that was first invented, a lot of people thought we have essentially ended life on earth or maybe we prevented World War III from happening in the past 80 years because assured, neutral annihilation kept the superpowers from attacking each other at least head-on and kept their fighting to proxy wars. You know what? Proxy wars are not great, but they’re probably better than World War III with nuclear weapons. So it’s quite difficult in the moment to tell what’s actually benefit and what’s not, and I think we should be a bit more humble. I’ve certainly become more humble over time of thinking I know which way it’s going to turn. I think the pandemic was a huge moment for a lot of people where there was so much certainty about whether this intervention worked or that intervention didn’t work and most people were wrong.
Certainly a lot of very smart people, very qualified people got that just utterly and catastrophyingly wrong. So just a little intellectual humility, I think back upon that and go like, “You know what? I’m not a PhD in virology,” and I don’t claim that I somehow saw how it always going to play out, but the people who were really experts in it, they’ve got a bunch of it wrong. Nobody knows anything. I keep reminding myself of that every day. No one knows anything. We can’t predict the economy a month out. We can’t predict world affairs a month… The world is just too complicated.
Lex Fridman
When I watched the Netflix documentary, Chimp Empire, and how there’s a hierarchy of chimps, all of that looks eerily similar to us humans. We’re recent descendants. So these experts, some of the chimps got a PhD, others don’t. Others are really muscular. Others are beta male kind. They’re sucking up to the alpha. There’s a lot of interesting dynamics going on that really maps cleanly to the geopolitics of the day. They don’t have nuclear weapons, but the nature of their behavior is similar to ours. So I think we barely know what’s going on, but do think there’s a basic will to cooperate as a basic compassion that underlies just the human spirit that’s there. And maybe that is just me being optimistic, but if that is indeed there, then we’re going to be okay.
When I watched the Netflix documentary, Chimp Empire, and how there’s a hierarchy of chimps, all of that looks eerily similar to us humans. We’re recent descendants. So these experts, some of the chimps got a PhD, others don’t. Others are really muscular. Others are beta male kind. They’re sucking up to the alpha. There’s a lot of interesting dynamics going on that really maps cleanly to the geopolitics of the day. They don’t have nuclear weapons, but the nature of their behavior is similar to ours. So I think we barely know what’s going on, but do think there’s a basic will to cooperate as a basic compassion that underlies just the human spirit that’s there. And maybe that is just me being optimistic, but if that is indeed there, then we’re going to be okay.
DHH
The capacity is certainly there. Whether we choose that capacity or not, who knows and in what situation. I think accepting that we all have the capacity for both ways, for both incredible generosity and kindness and also cruelty. I think, Young, with this whole theory of the shadow was really spot-on that we all have that capacity in us and accepting that it’s our job to attempt to cultivate the better parts of our human nature is weighed against our propensity to some time be the worst of ourselves.
The capacity is certainly there. Whether we choose that capacity or not, who knows and in what situation. I think accepting that we all have the capacity for both ways, for both incredible generosity and kindness and also cruelty. I think, Young, with this whole theory of the shadow was really spot-on that we all have that capacity in us and accepting that it’s our job to attempt to cultivate the better parts of our human nature is weighed against our propensity to some time be the worst of ourselves.
Lex Fridman
I’m excited to find out what’s going to happen. It’s so awesome to be human. I don’t want to die. I want to be alive for a while to see all the cool shit we do. And one of the cool things I want to see is all the software you create and all the things you tweet, all the trouble you get yourself into on Twitter. David, I’m a huge fan. Like I said, thank you for everything you’ve done for the world, for the millions of developers you’ve inspired and one of whom is me, and thank you for this awesome conversation, brother.
I’m excited to find out what’s going to happen. It’s so awesome to be human. I don’t want to die. I want to be alive for a while to see all the cool shit we do. And one of the cool things I want to see is all the software you create and all the things you tweet, all the trouble you get yourself into on Twitter. David, I’m a huge fan. Like I said, thank you for everything you’ve done for the world, for the millions of developers you’ve inspired and one of whom is me, and thank you for this awesome conversation, brother.
DHH
Thanks so much for having me.
Thanks so much for having me.
Lex Fridman
Thanks for listening to this conversation with DHH. To support this podcast, please check out our sponsors in the description and consider subscribing to this channel. And now, let me leave you with some words from Rework by DHH and Jason Fried, “What you do is what matters, not what you think, or say, or plan.” Thank you for listening and hope to see you next time.
Thanks for listening to this conversation with DHH. To support this podcast, please check out our sponsors in the description and consider subscribing to this channel. And now, let me leave you with some words from Rework by DHH and Jason Fried, “What you do is what matters, not what you think, or say, or plan.” Thank you for listening and hope to see you next time.
Transcript for Iran War Debate: Nuclear Weapons, Trump, Peace, Power & the Middle East | Lex Fridman Podcast #473
This is a transcript of Lex Fridman Podcast #473 with Iran-Israel Debate.
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He says the Iranians can either blow up their nuclear program under US supervision or someone’s going to blow it up for them, and even though at the time we think Netanyahu is really trying to push the president into a military campaign, well, I’m sure we’ll talk about that throughout the podcast. The president authorizes his lead negotiator and close friend Steve Witkoff to begin outreach to the Iranians, and that’s begun the Oman round and it’s Oman round because it’s taking place in Oman with mediation efforts by the Omanis. There are five rounds of negotiations with the Iranians, and through the course of those negotiations, the US finally puts on the table an offer for Iran. We’ll talk about the details of that. The Iranians reject that offer, and we’re now into the sixth round, which is supposed to take place on a Sunday. On the Thursday before the Sunday, the Israelis strike and they go after in a rather devastating campaign over a matter of now 12 days.
They go over and go after Iran’s nuclear program, the key nuclear sites, going after weapons scientists who are responsible for building Iran’s nuclear weapons program and also go after top IRGC Islamic Revolutionary guard commanders as well as top military commanders, and yet there’s still this one site that is the most fortified site. It’s called Fordow. It’s an enrichment facility. It’s buried under a mountain, goes about 80 meters deep. It’s encased in concrete, it has advanced centrifuges and highly enriched uranium. The Israelis can do damage to it, but it’s clear it’s going to take the United States and our military power in order to severely degrade this facility, and Trump orders United States Air Force to fly B-II bombers and drop 12 massive ordnance penetrators, which are these 30,000 pound bombs on Fordow in order to, as he said, obliterate it, more realistically to severely degrade it. So that happens.
And then he offers the Iranians as he’s been offering all the way through. You have an option, you can go back to Oman, I told you Oman, and you decided to force me to go to Fordow, but now we can go back for negotiations, and he forces a ceasefire on the Iranians, gets the Israelis to agree and that’s where we are today. That’s where as you say, a tentative ceasefire that just came into effect and we’ll see now if the Iranians decide to take President Trump on his repeated offers, join him in Oman for another round of negotiations. Scott, is there some stuff you want to add to that?
Everyone knows and even now it’s probably less likely than ever that they’re going to give up enrichment. Sure, they bombed Fordow, but they didn’t destroy every last centrifuge in that place, and the Iranians are already announcing that they’re already begun construction on another facility under a taller mountain buried even deeper, and they figured out how to enrich uranium hexafluoride gas, what, 20 years ago now, and they will always be able to, and this is the slippery slope that we’re on with these wars is in fact, I saw a friend here on TV the other day. He almost pretty much just implied there saying, “Well now Trump has to go in.” We were told it’s just Israel doing it, don’t worry, but then no Trump has to hit Fordow or else now they’ll break out toward a nuclear weapon. So in for a penny, in for a pound, in for a ton.
And now once we bomb Fordow again and Natanz again and the new facility again, then it’ll be decided that nope, as Benjamin Netanyahu said the other day, you know what would really solve this problem? If we just kill the Ayatollah, then everything will be fine. Then we’ll have a regime change and then what? Then we’ll have a civil war with Bin Ladenites again in the catbird seat, just like George Bush put them in Iraq and Barack Obama, put them in Libya and in Syria, and we’ll have Azeris and Baluchi suicide bombers and Shiite revolutionaries and whoever all vying for power in the new absolute chaos stand. If you listen to the administration and Mr. Dubowitz, they’re essentially just implying that like, oh yeah, mission accomplished. We did it. Their nuclear program’s destroyed. Now we don’t have to worry about that anymore, but that’s not true. Now there’s every reason to believe, and we don’t know for sure.
There’s every reason to believe that at least is much more likely now that the Ayatollah will change his mind about God changing his mind and we’ll say that actually maybe we do need a nuclear deterrent. That’s really what it’s been for this whole time is a bluff. We have bullets in one pocket, revolver in another. Let’s not you and me fight and escalate this thing. It’s the same position by the way as Japan and Germany and Brazil. Two of the three of those are under America’s nuclear umbrella, I admit, but still where they’ve proven they’ve mastered the fuel cycle and they can make nuclear weapons, but hey, since nobody’s directly threatening them now, why escalate things and go ahead and make atom bombs? That has been their position the whole time because after all, they could not break out and make a nuke without everyone in the world knowing about it.
And that’s why Lex, and I’m sure you could vouch for me on this, if you’ve been watching TV over the past few weeks, you’ll hear Marco Rubio and all the government officials and all the warhawks say, “Oh yes, 60%. What do you think they need with that 60%?” Implying that oh yes, see, they’re racing toward a bomb, but you see how they always just imply that? They won’t come right out and say that because it’s a ridiculous lie. They could have enriched up to 90 plus percent uranium 235 this whole time. The reason they were enriching up to 60% was in reaction to Israeli sabotage. First of all, assassinating their nuclear scientists and then their sabotage [inaudible 00:10:19]. They started enriching up to 60% just like they did in the Obama years to have a bargaining chip to negotiate away.
Under the JCPOA, they shipped out every bit of their enriched uranium to France to be turned into fuel rods and then ship back into the country to be used in their reactors, and so they’re just trying to get us back in that deal. It is an illusion and I don’t know exactly what’s in this man’s mind, but it’s just not true that they’re making nuclear weapons, and it has been a lie of Benjamin Netanyahu and his Likud party regime, and for that matter, the Khatima regime of Ehud Olmert before him that this is a threat that has to be preempted when in fact it never was anything more than a latent nuclear deterrent.
There have been multiple attempts at diplomacy with Iran. I’m sure we’re going to talk about, it’s mentioned the JCPOA, so we should certainly talk about the JCPOA, which was the 2015 deal that Barack Obama reached with Iran, but multiple attempts to actually get the Iranians to negotiate away their nuclear weapons program. I mean it’s worth mentioning that if Iran wanted to have civilian nuclear energy. There are 23 countries in the world that have it, but they don’t have enrichment and they don’t have reprocessing. We sign these deals called the gold standard with the South Koreans, with the Emiratis, with others, and we say if you want civilian energy, you can have power plants, you can buy your fuel rods from abroad, but there’s no reason to have enrichment or plutonium reprocessing because those are the key capabilities you need to develop nuclear weapons. Now, the five countries that have those capabilities and don’t have nuclear weapons are Argentina, Brazil, Holland, Germany, and Japan.
And I think it’s the view of many administrations over many years, including many European leaders, that the Islamic Republic of Iran is very different from those aforementioned countries because that it has been dedicated to terrorism, it’s been killing Americans and other Westerners and other Middle Easterners, and it is a dangerous regime. You don’t want to have that dangerous regime retaining the key capabilities and needs to develop nuclear weapons, but I want to get back more to the present. I mentioned this was around negotiations at Oman. Scott’s saying that President Trump had said, “Here’s the offer, take it to leave it, zero enrichment full dismantlement.” Well, in fact, that wasn’t the offer that was presented to the Iranians at Oman. The offer was a one-page offer and it said you can temporarily enrich above ground. You’ve got to render your below ground facilities, quote, non-operational and then at some time in the future, three, four years as Scott said, there’ll be a consortium that’ll be built not on Iranian territory.
It’ll be a partnership with the Saudis and the Emiratis. It’ll be under IAEA supervision, and that enrichment facility will create fuel rods for your nuclear reactors. So that was the offer presented to Iran, and that offer would come with significant sanctions relief, billions of dollars that would go to the regime. Obviously the economy there has been suffering. The regime has not had the resources that it’s had in the past to fund what I call its axis of misery, its proxy terror armies around the world, and it was a good offer and I was shocked that Khamenei rejected it. He did reject it and I think he rejected it because I think he believed that he could continue to do to President Trump what he had done to President Obama, which is just continue to squeeze and squeeze the Americans at the table in order to ensure that he could keep all these nuclear facilities, all these nuclear capabilities so that at a time of his choosing when President Trump is gone, he can develop nuclear weapons.
Now, it is a bit interesting to say that Iran has no intention to develop nuclear weapons. Let’s examine the nuclear program and ask, “Does this sound like a regime that’s not interested in building nuclear weapons?” So they built deeply buried underground enrichment facilities that they hid from the international community and they didn’t disclose. They had an active nuclear warhead program called the AMAD, which ended in 2003 formally when the United States invaded Iraq, and we know that because not only has that been detailed by the IAEA, but actually Mossad and a daring operation in Tehran took out a nuclear archive and brought it back to the west, and then the IAEA, the United States, and the intelligence communities went after this detailed archive, went into it and discovered that this Supreme leader, Ali Khamenei had an active program to build five atomic warheads and was a very detailed program with blueprints and designs, all of which was designed under AMAD to build a nuclear weapons program. So again, it’s interesting to say that he doesn’t have the intention to build nuclear weapons when he actually had an active nuclear weapons program, and we can talk about what happened to that program after 2003, and there’s a lot of interesting details. So when you combine the fact that he has an active nuclear weapons program, he has sites that are buried deep underground. He has weapons scientists who come out of the AMAD program and continue to work on the initial metallurgy work and computer modeling designed to actually begin that process of building a warhead, and all of this has been hidden from the international community. He has spent estimates of a half a trillion dollars on his nuclear program in direct costs and in sanctions costs, and one has to ask and I think it’s an interesting question to compare the UAE and Iran.
The UAE signed the gold standard. They said, “We’ll have no enrichment capability or reprocessing.” They spent about $20 billion on that and it supplies 25% of their electrical generation. Khamenei spent a half a trillion dollars, and that program supplies maybe 3% of their electrical needs. In fact, they have a reactor that they bought from the Russians called Boucher, and that reactor, it’s exactly what you’d want in a proliferation proof reactor. They buy fuel rods from the Russians, they use it and they send the spent fuel back to Russia so it cannot be reprocessed in the plutonium. So I just think it’s important for your listeners to understand just some of the technical nuclear history here in order to unpack this question of did Khamenei want nuclear weapons? What was his goal here? And then we can talk about was this the right operation for the United States to order the B-II bombers to strike these facilities, again was a limited operation as President Trump has said, and in order to drive the Iranians back to the negotiating table and finally do the deal that President Trump has asked them to do since he came into office in January.
So it’s interesting, I mean again, you’ve got the DNI under Biden, you’ve got the CIA director, John Radcliffe, you’ve got Israeli intelligence, you’ve got the Wall Street Journal, and you’ve got the IAEA asking questions of Iran on its past weaponization activities. Why are you denying us?
But the fact of the matter is if he had just played it straight and said, “Listen, Ayatollah, we don’t have to be friends, but we do have a deal here, which my predecessor struck with you, but I don’t like these sunset provisions and I want to send my guys over there and see if we can figure out a way to convince you that we really wish you’d shut down and them all together.” Or this or that or the other thing, and tried to approach them in good faith. We talk about yard lines and things. We had a JCPOA, okay? So toward peace, we were past the 50 yard line. Donald Trump could have gone to Tehran and shook hands with the Ayatollah as Dick Cheney complained that we had cold relations with Iran back in 1998 when he was the head of Halliburton and said, “We can do business with these guys.”
Donald Trump could have gone right over there and done business, and instead he gave into Netanyahu’s lies in this ridiculous hoax that they had uncovered all these Iranian nuclear documents, which he pretends is legit, where all they did was recycle the fake Israeli forged smoking laptop of 2005, which they lied and pretended was the laptop of an Iranian scientist that was smuggled out of Iran by his wife and had all this proof of a secret Iranian nuclear weapons program on it, but every bit of that was refuted, including the thing about the warhead he said was refuted by David Albright and his friend David Sanger in the New York Times, that all those sketches of the warhead for the missile were wrong because when Mossad forged the documents, they were making a good educated guess, but they didn’t know that Iran had completely redesigned the nose cone of their mid-range missiles and had an entirely different nose cone that would require an entirely different warhead than that described in the documents.
And why would they have been designing a warhead to fit in a nose cone that they were abandoning? And so that was refuted. David Albright completely discredited your claims there pal, and then they later admitted that it was a CIA laptop. There was no laptop and they later admitted Ali Hainan admitted who was a very hawkish, not director, but a high level executive at the International Atomic Energy Agency, admitted that that intelligence was brought into the stream by the Mujahideen-e-Khalq communist terrorist cult that used to work for the Ayatollah during the revolution, then turned on him, and he turned on them and kicked them out. Then they went to work for Saddam Hussein where they helped crush the Shiite and Kurdish insurrection of 1991, and then they became America, Donald Rumsfeld’s and Ariel Sharon’s sock puppets and later Ehud Olmert’s sock puppets when the United States invaded Iraq and took possession of them.
They’re now under American protection in Albania, and these are the same kooks who just a few weeks ago you might remember saying, “Look, new satellite pictures of a whole new nuclear facility in Iran.” Isn’t it funny how no one ever brought that up again? Didn’t bomb it. It was nothing. It was fake. Just like before when they said, “Hey, look, here’s a picture of a vault door.” And behind that is where the secret nuclear weapons program is except turned out that vault door was a stock photo from a vault company. It meant nothing and they had repeatedly made claims that were totally refuted, just like I’m about to refute his claim, that they ever were the ones who revealed for example, Natanz. He was implying that Natanz and Kham were both buried and hidden until revealed I think you said by dissident groups. That is the MEK sock puppets of the Israelis, but it was your friend David Albright, not the Israeli Mossad through the MEK who revealed Natanz facility. Ask him, he’ll fist fight you over it. He claims credit he was first and said, “This is a facility.” However…
It’s just completely wrong. Why do they bury them? They buried them for protection because clearly the Israelis have indicated since the 1990s that they consider any nuclear program in Iran to be the same thing as an advanced nuclear weapons program. You’re hearing that today. For them to have a nuclear facility at all is equivalent to them going ahead and breaking out and making a nuclear weapon, and so of course they know that they have to have it buried to protect it from Israel. That doesn’t mean that they are trying to get nukes.
It does mean, as I already said, that they wanted to prove to the world that they know how to enrich uranium and that they have facilities buried deeply enough where, if we attack them, that would incentivize them to making nukes, and then we might be unable to stop them without going all the way toward a regime change, which they’re bluffing, basically betting, that we won’t go that far, considering how gigantic their country is and how mountainous and populous it is compared to Iraq next door.
Now, here’s some more things that he said that weren’t true. He said Iran has been killing Americans all this time. Well, that’s almost always a reference to Beirut 1983, which you can read in the book By Way of Deception, by Victor Ostrovsky, the former Mossad officer, that the Israelis knew that they were building that truck bomb to bomb the Marines with and withheld that information from the United States and said, “That’s what they get for sticking their big noses in.” And that is in the book, By Way of Deception by Victor Ostrovsky. And by the way, the Israelis were friends with them, with Iran, at the time all through the 1980s. And it was just a couple of years later when Ronald Reagan sold Iran missiles and using the Israelis as cutouts to do so when he switched sides temporarily in the Iran-Iraq war.
And that was in 1983. If Ronald Reagan can sell a missiles a year or two years after that, three years after that, then surely the United States and the Ayatollah can bury the hatchet from that. And no one’s ever even, I don’t believe, ever really proven that Tehran ordered that. It was a Shiite militia backed by Iran, that sort of proto-Hezbollah, that did that attack that killed those Marines. And if there’s some responsibility for it, then damn them. If there’s direct responsibility for that, not just their support for the group, then damn them for that, but that’s still no reason in the world to say that we can’t get along with them now when that was in the same year Return of the Jedi came out.
And then the other one, and this is always referred to, you’ll see this on TV News today. Anyone watching this, turn on TV News, and you’ll hear them say, “Iran killed 600 Americans in Iraq War II,” but that’s a lie. There was a gigantic propaganda campaign by Dick Cheney and his co-conspirators, David Petraeus and Michael Gordon of the New York Times, now at the Wall Street Journal, where they lied and lied like the devil for about five, six months in early 2007 that every time a Shiite set off a roadside bomb, these new improved copper cord enhanced … They’re called EFPs, explosively formed penetrators.
Now, anytime that happened, Iran did it, which is what George Bush called short-handing it. In other words, just implying the lie. What they’re saying is Iran backed Muqtada al-Sadr, and America attacked Muqtada al-Sadr, who actually they were fighting the whole war for him. He remains a powerful kingmaker in that country to this day. He’s part of the United Iraqi Alliance. And in fact, as long as we’re taking a long form here, he was the least Iran-tied of the three major factions in the United Iraqi Alliance in Iraq War II.
The other two major factions were Dawa and the Supreme Islamic Council, and they had been living in Iran for the last 20 years. They’re the ones who came and took over Baghdad. Muqtada al-Sadr was a Shiite and close to Iran, but he was also an Iraqi nationalist. And at times, he allied with the Sunnis and tried to limit American and Iranian influence in the country. Was more of an Arab and an Iraqi nationalist. And the Americans decided they hated him the most, not because he was the most Iran-tied, but because he was willing to tell us and them two to get the hell out. And America was betting that, if we backed the same parties that Iran backed in Iraq War II, that they would eventually end up needing our money and guns more than they would need their Iranian friends and co-religionists and sponsors next door, which of course did not work out. America’s had minimal influence in supermajority Shiite Iraq ever since the end of Iraq War II. And we can get back later in the show to how Israel helped lie us into that horrific war as well.
But the fact of the matter is it was not Iranians setting off those bombs, and it was not even Iranians making those bombs. And I show in my book, Enough Already, I have a solid dozen sources.
This was all just a propaganda campaign because Dick Cheney and David Petraeus were trying to give George Bush a reason to hit IRGC bases and start the war in 2007. And this sounds crazy, but there’s four major confirming sources for it. Dick Cheney’s national security advisor, David Wurmser, who was the author of the Clean Break Strategy, which we’re going to talk about today. David Wurmser in 2007 was saying, “We want to work with the Israelis to start the war with Iran to force George Bush, to do an end run around George Bush and force him into the war.” And that was reported originally by Steven Clemons in The Washington Note, but it was later confirmed in the New York Times and by The Washington Post reporter, Barton Gellman in his book, Angler, on Dick Cheney, that there was this huge … This was the end that they were going for was they were trying so hard to force a war in 2007. And it was the commander of CENTCOM, Admiral Fallon, who said, “Over my dead body. We are not doing this.”
And then a few months later, the National Intelligence Council put out their NIE saying that there is no nuclear weapons program at all. And W. Bush complained in his memoir that in his story it’s the Saudi king, his Royal Highness Abdullah rather than Ehud Olmert, but he’s saying, ” I’m sorry, your Highness Majesty. I can’t attack Iran’s nuclear program because my own intelligence agency says they don’t have a military program. How am I supposed to start a war with them when my own intelligence agencies say that?” This is what Donald Trump just did started anyway. Had his man Rubio say, “Well, screw the intelligence. I don’t care what it says. We can just do this if we want to.”
Maybe give Mark a chance to speak a little bit but to try to … For both of you to try to steelman on the other side. People who are concerned about Iran developing a nuclear program … Can you steelman that case? And the same. The people who are concerned-
That’s in reaction to, one, Donald Trump leaving the deal in 2018, two, the assassination in December of 2020 of the Iranian nuclear scientist, Fakhrizadeh, or however you say that, and then in April of ’21, the sabotage at Natanz. And there’s a Reuters story that says, right after they sabotage Natanz, that’s when the Ayatollah decided let’s enrich up to 60%, which why stop 30% short of 90% 235? It’s because they’re not even making a threat. They’re making the most latent a threat. A bargaining chip to negotiate away. They’re trying to put pressure on the United States to come back to the table. That’s not the same as racing to the bomb. That’s why Marco Rubio says, “Never mind the intelligence,” because the intelligence says what I just said.
First of all, obviously enriched uranium is a key capability to develop a nuclear weapon. It can also be used for either purposes, civilian purposes and research purposes. You can use it to power nuclear submarines. Let’s just, if you don’t mind, if I could just break it down-
If you’re enriched to 20%, you are now at 90% of what you need to get to weapons-grade uranium. Now, why would you need 20%? You may need it for something like a research reactor, right?
The second aspect of a deliverable nuclear weapon is obviously the delivery vehicle, and those are the missiles. And according to the DNI and other incredible sources, Iran has got the largest missile inventory in the Middle East, 3,000 missiles before the war began and at least the ballistic missiles, 2,000, capable of reaching Israel. There’s no doubt that Iran has the ability once they have a weapons-grade uranium and the warhead to affix that to a missile and deliver that, certainly to hit Israel, hit our Gulf neighbors, hit Southern Europe.
They also have a active intercontinental ballistic missile program, an ICBM program, which ultimately is designed not to hit the Israelis or the Gulfies but to hit deeper into Europe and ultimately to target the United States. This just to understand the missile program. I think it’s an important part of it.
The third leg of the stool, and Scott has already alluded to this, and we’ve had some debate on this, and I think we should talk about it, what it really means in detail, is you’ve got to develop a warhead or a crude nuclear device. And according to estimates from both US government sources and nuclear experts, it would take about four to six months for Iran to develop a crude nuclear device. This is something that you wouldn’t use a missile to deliver, but you would use a plane or a ship. And it would take somewhere in the neighborhood of about a year and a half to deliver or to develop a warhead, and that’s to affix to the missile.
It’s sort of the three legs of the nuclear stool. The weapons-grade uranium. The missiles to deliver it. And the warhead. I just wanted to sort of define terms so that, when we’re having this big debate, your listeners kind of understand what we’re talking about-
I’m not correcting anything you said. What he said essentially is right. I’d maybe add a little more detail. The easiest kind of nuke to make out of uranium is a simple gun-type nuke like they dropped on Hiroshima. It was Little Boy. It’s essentially a shotgun firing a uranium slug into a uranium target, and that’s enough. They didn’t even test it. They knew it’d worked. It was so easy to do the Hiroshima bomb.
The Nagasaki bomb was a plutonium implosion bomb. It’s virtually always plutonium that’s used in implosion bombs and in miniaturized nuclear warheads that can be married to missiles as opposed to a bomb you can drop out of the belly of a plane, as he was saying, right? Gun-type nuke. You can’t put that on a missile. That is by far the easiest kind of nuclear weapon for Iran to make if they broke out and made one, but it’d essentially be useless to them. What are they going to do? Drive it to Israel in a flatbed truck? They got no way to deliver that.
But to make an implosion bomb, they would have to do years worth of experiments, unless the Chinese or the Russians just gave them the software or gave them the finished blueprints or something, which there’s no indication of that whatsoever. The only people gave them blueprints for a nuclear bomb was the CIA. Remember Operation Merlin where they just changed one little thing and gave them nuclear bomb blueprints, but the Iranians didn’t take the bait?
What they were testing … What they were doing at Parchin with that implosion chamber was making nanodiamonds, and the scientist in charge of it was a Ukrainian who had studied in the Soviet Union at this military university where they said, “See, they study nuclear stuff there,” but that wasn’t his specialty. His name was Dan Olenko, and he was a specialist in making nanodiamonds.
And that facility was vouched by Robert Kelly in the Christian Science Monitor. Told Scott Peterson of the Christian Science Monitor that that stuff was nonsense, that that facility, that implosion chamber, could not be used for testing an implosion system for nuclear weapons. And I know from Dr. Prather telling me that, when the Americans were doing this, and the Russians, too, that they tested all their implosion systems outside. And you have to do it over and over and over again with lead instead of uranium in the core. And then you take all this high-speed X-ray film of the thing, and it’s this huge and drawn-out and incredibly complicated engineering process.
And this is probably why, the week before the war, the CIA said, “Not only do we think that they’re a year away from having enough nuclear material to make one bomb. We think they’re three years away from having a finished warhead.” That must have been, assuming that they would try to make an implosion system that you could put on, in other words, miniaturize, and put on a missile as opposed, in other words, skipping a gun-type nuke that would be useless to them.
It’s very important to understand then that, if they have a uranium route to the bomb, if they withdraw from the treaty and kick out the IAEA inspectors and announce that now we’re making nuclear bombs, they can either, one, race to a gun-type nuke that’s essentially useless to them, or they can take their ponderous-ass time trying to figure out how to make an implosion system work.
But I want to get to the JCPOA because I actually think that’s an interesting discussion for Scott and I to have because I think there’s things that we agree on there and things that we disagree on. This is the 2015 nuclear deal that Obama reaches. It’s negotiated painstakingly over two years between 2013 and 2015, and it follows the interim agreement that the United States negotiated with Iran. And it’s in that interim agreement in 2013 where the United States for the first time actually gives Iran the right to enrich uranium.
There were five UN Security Council resolutions passed with the support of Russia and China that said Iran should have no enrichment capability and no plutonium reprocessing capability because of the fears that Iran would turn that into a nuclear weapons program. But in 2013, they give that up. 2015, we reached the JCPOA. And under the JCPOA, Iran is allowed to retain enrichment capability and reprocessing capability but over time. Scott mentioned the sunsets, and just want your listeners to understand what these sunsets are. Essentially, the restrictions that are placed on Iran’s nuclear program. And there’s some really serious restrictions placed on it, especially in the short term. Scott’s right. The enriched material. It has to be shipped out not to the French but to the Russians.
And there’s restrictions on Iran’s ability to operate these facilities, Natanz and Fordo. They’re not closed. They still remain open, but there are restrictions on what they can do with it. There’s also restrictions on Iran’s ability to test and install advanced centrifuges. Now, the reason you’d want an advanced centrifuge rather than the first-generation centrifuge that AQ Khan, the father of Pakistan’s nuclear bomb, gave to the Iranians is you need a smaller number of these centrifuges to produce weapons-grade uranium. If it’s smaller, Lex, it’s easier to hide, right? You can put it in clandestine facilities without this large enrichment centrifuge footprint. There’s restrictions on these advanced centrifuge R&D. And Iran gets significant sanctions relief as part of this.
But the whole assumption here, from both an Iranian and American perspective, is these restrictions are going to sunset. They’re going to disappear over time. In fact, 2025 is the year where some of the significant restrictions on Iran’s capabilities begin to sunset, and all of them are effectively gone by 2031. In 2031, Iran can emerge with an industrial size enrichment capability. They can emerge with advanced centrifuges that they can install in as many enrichment facilities as they want to build, and Iran can enrich to higher and higher levels. They can go from 3.67 to 20%. They can go to 60%. There’s nothing in the JCPOA that actually prohibits them from going to 90% enriched uranium.
And I think at the time, the Obama administration’s theory of the case was, sure, in 15 years time, but in 15 years time, we’ll be gone. Hopefully, there’ll be a different government in Iran, and maybe we can renegotiate a different agreement with that government that will extend the sunsets. That’s the JCPOA.
The reason that critics of the JCPOA, and I was one of them … We objected to the deal is not because it didn’t have some short-term temporary restrictions that were useful, but that if you got it wrong, and there was the same regime and power in 15 years, that regime could emerge with this huge nuclear program with the capabilities to develop nuclear weapons in these multiple hardened sites. Iran, we estimated, would have $1 trillion in sanctions relief over that 15- year period. And if you got it wrong that it was the same regime in power as had been in power in 2015, then you had some difficulties. I just wanted to lay out the case against the JCPOA.
Now, to steelman Scott’s argument, I think there’s a legitimate argument because I actually didn’t support the withdrawal from the agreement President Trump withdrew in 2018. I did a similar version of what Scott was suggesting, was I thought that the United States should negotiate with the Europeans, the French, the Germans, and the UK who are part of the original deal, extend the sunsets as an agreement between the United States and Europe, and then collectively go to the Iranians and say, “Let’s renegotiate this agreement to extend the sunsets. If you don’t want a nuclear weapons program, then you should agree that you don’t need these capabilities, and let’s extend the sunsets for another 15, 20, 30 years.” President Trump-
And two, are these sunsets, as Scott said, which under which these restrictions are going to go away, and Iran’s going to end up with a massive nuclear program. I think that’s just important. We can talk about the JCPOA, the process, and everything else, if you’re interested-
Why couldn’t Trump pick up the phone? I don’t know the details here, but I’ll take his word for it, that the British and the French and the Germans weren’t being nice to Trump. They didn’t like him. They didn’t want to do it. Why couldn’t he pick up the phone and say, “Hey, Putin, I need you to call the Ayatollah for me and tell him, hey, you’d like to see him lift these sunsets too and this and that,”? Why? Because they framed him for treason, so he was completely unable to engage in real diplomacy with Russia, and I bet that he’d agree with me on that one too.
I would say that just a couple of days ago, I was watching a podcast Scott was on and he accused Trump of being an agent for Netanyahu and the Israeli government. So I think again, the accusations that the President of the United States is a foreign agent for some foreign government, I think we should just put all of that aside in any discussion and just say, President Trump makes his own decisions whether we agree with them or agree with them, but he’s not working for the FSB and he’s not working for Mossad. President Trump makes his own decisions based on American national security.
I just want to touch on just one thing because I don’t want to leave this alone. Just out of respect for the victims of Iran-backed terrorism and hostage-taking and assassinations since 1979. This is the regime that took hostages in ’79, took our diplomats hostage. Scott says ’83 was really the only thing that happened and throws out a lot of information, certainly some pretty breathtaking accusations that somehow the Israelis knew about this and didn’t tell the Americans.
That was what the Saudi government told the US. In fact, there’s a great documentary about John O’Neill who was the head of FBI counterterrorism who told Louis Free, “Boss, the Saudis are blowing smoke up your ass about this Hezbollah thing. It was Al-Qaeda that did it.” And then Louis Free got all upset because he used the A word. He was a very conservative Catholic guy, Louis Free, and then refused to listen to another word from John O’Neill about it.
He didn’t actually support all of these terrorist organizations that he founded, financed, and supported to kill Americans. It wasn’t the Ayatollah in Iran. He’s not lying about his deception campaign against the United States. He’s not lying about negotiations with the Americans. It’s the American’s fault all the time. So he’s presented all the time in Scott’s conception here as a sincere actor who doesn’t want to develop nuclear weapons, who doesn’t actually want to kill Americans. He’s just always a victim of American and Israeli aggression.
I think it’s an interesting conception. I think let’s talk about it. And I mean, I’m fascinated by the conception because it’s very contrary to mine, obviously. It’s very contrary to I think, decades of overwhelming evidence that the Islamic Republic has been worth the United States since 1979. And I don’t take too much stock in what people say. I take stock in what they do. So “Death to America, Death to Israel” could just be a slogan. It could be just propaganda. But when it’s actually operationalized, then you start to ask, “Well, maybe it’s not just propaganda, maybe it’s intention operationalized into capabilities.”
What we’re forgetting here, and again, it’s this causal relationship. It’s we aggress against Iran and the Israelis aggress against Iran, and Iran is always reacting. I mean, let’s give the Iranians their due, because Khomeini made it very clear when he established the Islamic Republic that there will be a revolutionary and expansionist regime, and they will expand their power through the Middle East. And so he built, and to his credit, was very successful until October 7th, this axis of resistance, as he calls it, which are these terror proxy armies, Hezbollah, Hamas, Palestinian, Islamic Jihad, the Iraqi Shiite militias, the Houthis in Yemen, and certainly supporting the Assad regime in Syria.
He built a very, very impressive and deadly axis that he turned against the United States and against Israel, which saw its culmination on October 7th. I think after October 7th, that was a huge miscalculation for Khomeini, and we’ve seen the results of what’s happened to his axis of resistance through quite devastating Israeli military capabilities over the past number of months. But he has an ideology, and I think where I agree with Scott is I’m not sure if Khomeini would actually use a nuclear weapon against Israel, the United States, because I don’t think Khomeini is suicidal.
But I think what Khomeini wants is he wants a nuclear weapon as a backstop for his conventional power, right? It’s very much the Kim Jong-Un model of North Korea, right? I’m going to have nuclear weapons with ICBMs to threaten America, but what I’m actually going to do is threaten South Korea with having massive conventional capabilities on the DMZ that I could take South Korea in a week, I could destroy in a week. So, you, the United States and South Korea have no military option. That’s Khomeini’s view. He can actually building up this massive ballistic missile arsenal that he’s unleashed in the past 12 days that according to, again, the US and Israel was going to go from 2,000 to 6,000 to 20,000, that from Khomeini’s perspective, he didn’t need to drop a nuclear bomb on Tel Aviv.
What he needed to do was use the threat of nuclear escalation in order to use his conventional capabilities, his missiles, to destroy Tel Aviv. And you’ve already seen the damage from just a few dozen ballistic missiles getting through the kind of damage that he’s wrought on Tel Aviv already. That is the conception that Khomeini has. It’s a revolutionary regime. It aggresses. And I do think it’s interesting, and I think we should talk about it.
And Gareth Porter, who’s a really great critic of all of these policies and claims says, “Hey, this was a good faith misunderstanding by DIA. They were doing their job.” But it turned out the IAEA later, when America gave them that information, the IAEA went and verified, “Oh, there’s the magnet and there’s this and there’s that.” And all those dual use items actually were being used for civilian purposes. And so then as Gareth writes in his book, “The only real reason that the NIE said that they even had a program before 2003 was essentially because they didn’t want to dispute their last mistaken conclusion. So they said, ‘Okay, well, that was right up until then, but that was when that changed'”
And then the other half of their reason for accepting that there ever was a nuclear weapons research program in the country before 2003 was the smoking laptop. And I’m sorry, I think I misspoke earlier when I said that the laptop was in 2005, that was just the Washington Post story that had a bunch of stuff about it. That was in 2003 as well, or 2004 possibly. So this was why the, but it was still all, again, forged by the Israelis and funneled through the MEK cult, but was obsolete essentially, and had nothing in it. At least the accusations in it weren’t passed ’03. And so there’s really no reason to believe that there was actually a nuclear weapons research program even before ’03, which then again, the National Intelligence Council says ended in 2003 and hasn’t been restored since then.
And Mohsen Fakhrizadeh, who you mentioned earlier, who’s in some respects, I wouldn’t call him the Oppenheimer of the Iranian nuclear weapons program. He’s more like… Who was in the Oppenheimer movie, Leslie Grove, the guy who was actually responsible for the organization, and the training, and the recruitment, and the guy that actually ran the program as opposed to Oppenheimer, the sort of brilliant nuclear physicist. This is Fakhrizadeh. Fakhrizadeh takes control of this program. And now it is dispersed and it is unstructured in that sense because they recognize that if they continue with this, the United States may march to Tehran.
And so the NIE says, “Iran is retaining the key capabilities, the enrichment capabilities to give them an option for a nuclear weapon. But we, the NIE, have decided, or we have concluded that they no longer have an active structured nuclear weapons program.” However, since then, what have we seen? We’ve seen them actually do what many suspected they would do, which is build all the key capabilities that they need so that at time of their choosing, they can decide to develop a nuclear bomb, whether it’s a crude nuclear device as you’ve described, whether it’s a nuclear warhead. We’ve had that discussion so far.
I mean, I have to say, I really admire the way he’s played this three-dimensional nuclear chess game. It’s very, very interesting. And I think he made a tragic mistake about six weeks ago when he rejected the offer from Trump at Oman and then provoked both an Israeli and then an American strike. But he was playing this game almost perfectly before then in building out these capabilities. And I think what he should have done, if I were him, I would’ve waited out Trump. I would’ve waited three and a half years. I would’ve taken the offer in Oman, which gave him enrichment capability above ground. This consortium that was going to be built in three and a half years would never be built.
And even if it was built, he could just say, “I’m not interested anymore,” and challenge the next president, whoever that is, Republican or Democrat, to do anything about it. And I think the political calculation should have been, ” The next president’s not going to do anything about this. I’ll be able to then be able to complete my nuclear weapons program.” But he challenged Trump. He thought Trump was a paper tiger. He rejected that offer at Oman. And we’ve seen what’s happened over the past couple of weeks.
They still don’t have a single atom bomb. The reason why they haven’t been able to cobble together an atom bomb in this 1940s technology is because they have not tried to. Okay, so people can just essentially flog this dead horse, pretend there’s this threat. Oh, he’s going to break out any day now. But here’s the thing about that. As the Ayatollah well knows, George W. Bush, Barack Obama, Donald Trump, Joe Biden, and now Trump again, have all vowed with all sincerity that they would bomb Iran off the face of the earth if they attempted to break out and make a nuclear weapon.
Hillary Clinton, when she ran, said they’d be obliterated from the face of the earth. Barack Obama did an interview with Jeffrey Goldberg in the Atlantic in 2012, called “As President I Don’t Bluff.” And essentially the interview is him begging Jeffrey Goldberg to explain to the Israelis that he really, really, really, really means it, that he’s trying to negotiate, but if the Ayatollah breaks out for a nuke, “I’ll nuke him if I have to.”
I got more here. Netanyahu also did an interview with Jeffrey Goldberg back when Ehud Barak was his defense minister in, I think this is also 2012, it might’ve been 2014, where the two of them explained that they agreed with what he said too, that the threat is not of a nuclear first strike. Unlike every AM radio audience has been led to believe that the Ayatollah, as soon as he gets an atom bomb, he will nuke Tel Aviv and he doesn’t care if all of Persia is nuked by Israel’s 200 nukes in response. He’s trying to cause the end of the world by causing a nuclear war and all these things. Well, Netanyahu himself admitted that that’s not true.
As Scott rightly said, mountainous, incredibly difficult to monitor, incredibly difficult to surveil. They built underground facilities at Natanz and Fordow without our knowledge. They didn’t disclose it. We finally found out about it.
Now you brought up the DPRK. Well, in 2002, when George W. Bush said that they were part of the axis of evil, they were part of the NPT and they had a safeguards agreement with the IAEA. Yes, they had bought centrifuge equipment from aqcon, but they had not used it. It was John Bolton’s lie that they were enriching uranium to weapons grade and violating the agreed framework. John Bolton and George W. Bush in the fall of ’02 then canceled the agreed framework deal that Bill Clinton had struck based on this misinformation. They added new sanctions and they launched what was called the Proliferation Security Initiative, which was an illegal and unilateral claim of the authority to seize any North Korean ship on the high seas if they suspected it of proliferation. Then they added them to the Nuclear Posture Review, putting them on the short list for a potential first strike.
It was only then in the end of 2002 after these, what, four or five major things that the Bush government did to antagonize them that North Korea then announced that they were going to withdraw from the treaty and begin making nuclear weapons, which is what they did. Then as we know from all the scientists say every time that they’ve tested a nuclear bomb, it’s been a plutonium bomb and never tested, never once used a uranium bomb. There’s no evidence that John Bolton’s claims there that they were enriching uranium were ever true. They had Sig Hecker who’s this important American nuclear expert, went and toured their facilities and all of these things. We know quite a bit about what they have. It was simply Bush pushed North Korea to nukes, as Gordon Prather wrote in his last great article for us at Antiwar.com. It was through this exact kind of belligerence when we already had a deal that we could have continued to work with them on-
That means I’m just spinning for the Ayatollah or I believe that no one ever does anything except in reaction to Israel and America, except that I’m just citing specific examples of where that’s exactly the case. Donald Trump withdrew from the deal. He could have stayed in the deal and tried hard to make it better. He didn’t.
But let’s take him at his word that he wants civilian nuclear energy. Let’s build it for him. As long as there’s no enrichment or reprocessing, gives him the key capabilities that he could if he decides to build nuclear weapons. That seems to me a thoughtful approach. I think Scott would probably agree with it. Proliferation proof he can’t build nuclear weapons, and we can do this all peacefully. That’s my preference.
I think worst case is that the Iranians do what they’ve unfortunately been doing over and over again and rejecting these deals and holding firm that they want to retain this enrichment capability. The only reason they want to retain enrichment capability is the option to develop nuclear weapons. Otherwise, they can have civilian energy. Tomorrow makes much more commercial sense to do that, and the entire international community would help them and pay for that.
I worry that they’re going to just remain intransigent at the negotiating table. I think if they do that, then what I worry that they’re going to do is whatever remaining capabilities they have left, they’ll bide their time. They’ll wait for the opportunity. Maybe it’s not now. Maybe it’s when Trump’s gone, and they will rebuild this nuclear weapons program. They’ll be then inviting further strikes, further war and further suffering. I worry that that is the worst case.
By the way, it’s part of that worst case in retaining the capabilities, the extra worst case is they take those capabilities and they go for a nuclear bomb. Now, if Scott’s right and the regime has never had any desire for a nuclear bomb, then we don’t have to worry about that. According to Scott, all of this has been fabricated. All of this has been result of US and Israeli intelligence mendacity, and we don’t have to worry about a nuclear weapon. I personally worry about it knowing this regime, looking at two and a half decades of nuclear deception. I worry that they want to retain those capabilities and at time of their choosing, develop a nuclear bomb.
I think if you’re responsible and you’re trying to think through the various scenarios, you’ve got to consider an Iranian nuclear weapons breakout as a possibility and you’ve got to try to mitigate that. You either mitigate that at the negotiating table through a full dismantlement deal or, and it’s the least good option for sure is you’re going to have to go back in there, either the Israelis and-or the United States, and you’re going to have to continue to use both covert action and air power to destroy those capabilities.
I don’t know about him, but I know Ben Shapiro, many other leaders of the Israel lobby in America celebrated the overthrow of Bashar al-Assad in Syria by Abu Mohammed al-Jilani, the leader of al-Qaeda in Iraq in Syria. Why? Because he’s not a Shiite. He’s not an Alawite friends with the Shiites and friends with Iran and friends with Hezbollah. That’s good for Israel even though it’s the worst thing that you could possibly imagine for the people of the United States of America, those sworn loyal to Osama Bin Laden and Ayman al-Zawahiri ruling Damascus now, their own ISIS caliphate in our era.
This is why they always pretend. They go, over there, the Muslims, the terrorists, greatest state sponsors of terrorism. It’s al-Qaeda that threatens the United States of America. It wasn’t Hezbollah that knocked those towers down. They have us siding with our enemies against their enemies. As you just said, well, I guess time will tell, Lex, whether we’re going to have to drop the 82nd Airborne in there, whether Americans are going to have to do a regime change in Tehran.
I think Scott has done a good job over the years in demonstrating that we don’t want to do that again. Is there such a scenario? I think one must never rule it out because there is a scenario, for example, where the regime collapses and there’s chaos inside Iran. Not suggesting that’ll happen. There are a whole bunch of scenarios maybe we should talk about with respect to the collapse of the regime.
But you could see a scenario where the United States would have to go in there in order to try to secure military and nuclear and missile assets so that it doesn’t end up the hands of warring factional and ethnic groups that Scott referred to. Because again, as he’s rightly pointed out, Iran is not Persia.
I think Scott’s right. I mean if a scenario happened like that, I mean I think the Israelis have demonstrated extraordinary capabilities and they could go in there and they could secure loose nuclear materials that you would be worried, could be fashion for nuclear weapons. Scott doesn’t seem to worry about these materials. I worry about these materials and capabilities in the hands of anybody because they’re all capabilities that just the physics of it, you can produce nuclear weapons.
Best case scenario, negotiation. We fully dismantle their program in Oman. Worst case scenario is having to return for continued military strikes that continue to escalate the situation. Worse situation is some kind of decapitation strike that collapses the regime and causes chaos. There are a whole bunch of other scenarios we can talk about that are embedded in that, but I think if you’re a responsible person and a responsible analyst, and certainly if you’re a responsible policymaker, you got to be planning for all of these scenarios and more.
Now, America’s in the situation where the danger that Iran will now break out to a nuke is so heightened that now we’re talking about, well, maybe we’ll have to do a full regime change. I appreciate you, Mark, saying that we should not kill the Ayatollah, but Benjamin Netanyahu says we should. He said just the other day that if we get rid of the Ayatollah, that will solve all the problems, which is just crazy to think that they have, Israeli officials have been tweeting out pictures of and palling around with the son of the Shah, talking about reinstalling his royal majesty’s monarchy, sock puppet dictatorship. That’s taking back Iran for the people of Iran, giving them over to a bunch of foreign-backed exiles?
Was that what Trump meant when he gave that speech in Qatar saying, “We don’t believe in neoconservatism and spreading democracy anymore.” He’s just setting up because we’re going to try to reinstall a monarch?
Let’s help him. Let’s help his people get electricity. But the key difference in our argument, and it’s a fundamental difference, Scott’s right, the key difference is I do not want to give this regime enrichment or reprocessing because they have shown over time, for whatever reason, whether you believe it’s they intended to or we were lying about it or we broke them, it doesn’t matter. What they have shown over the past number of years is they have gone up from 3.67% enriched uranium for civilian purpose all the way up to 60%, which is 99% of what you need for weapons grade. Since we’ve seen them do it before, we don’t want to see them do it again. No enrichment, full dismantlement, full deal. Then there’s a peaceful resolution to- What I worry about is positions that are taken that undermine President Trump’s negotiating leverage in Oman.
What happened is the Trump administration tried to negotiate with the Europeans. The Europeans were opposed because they didn’t want to revisit the agreement. We knew the Iranians were completely opposed, and there was no way they were going to do this if the United States and Europe were divided. Just a little bit of history, I just think it’s interesting history. It was at that point that President Trump decided to withdraw from the agreement.
I live in Washington. I see all these lobby organizations. Okay? The fact of the matter is the pro-Israel lobby, which actually lobbies in support of the U.S.-Israel relationship. It’s comprised of tens of millions of Christians and Jews and Hindus and yes, yes, Muslims who believe strongly in a strong U.S.-Israel relationship. The reason that relationship has been so strong over so many years and that this quote “lobby” has been so successful is they’re pushing through an open door with policymakers. Not because some nefarious money influence, but because at the end of the day, the interests align. We counter terrorism together, we counter nuclear proliferation together, and we believe that the U.S.-Israel relationship is a strong relationship and these accusations of dual loyalty and these accusations of Israel Firsters that Scott’s thrown around, I think distract us from the conversation, which I think we should return to. Let’s talk about today.
We’ve talked about best case scenarios. We’ve talked about worst case scenarios, and we talked about really worst case scenarios. So I think let’s talk about the way forward, and I’d be interested in hearing from Scott where he thinks we’re going, and I’m certainly, I don’t crystal ball these things. It’s always difficult to predict, but I think President Trump has done a really good job. He has led this. He has not been at the beck and call of Bibi Netanyahu or Mohammed bin Salman of Saudi Arabia or anyone else. He has led this effort. He has made these decisions. This is a man who throughout his entire career, and not just his political career, but many, many years before that, believed that an Iranian nuclear weapon was a threat to the United States of America, not just to our allies, but to the United States of America. And he’s been very clear on record.
He led this campaign since he started in January. He offered negotiations. He got rebuffed by the Iranians in Oman. He put pressure on the regime economically. He continued to offer negotiations. He offered something that I thought was flawed. I mean, I got to tell you the offer in Oman that he gave to the Iranians, I thought it was flawed because I think it allowed Iran to retain this key enrichment capability. The Iranians turned it down, and I think Khamenei to his everlasting regret is going to wonder why did I turn that down? I could have got the enrichment capability that Scott thinks they deserve, and yet I rejected it. Why did I reject it? Because now look what’s happened in the past 12 days. I’ve lost Fordo mostly. We’ll see what happens on the BDA, the battle damage assessment. I’ve certainly lost Natanz. I’ve lost my conversion facility at Isfahan, which converts uranium Hexafluoride into, well converts yellowcake into uranium hexafluoride to pump into centrifuges. And the most important thing I lost at Isfahan is a conversion facility that takes 90% enriched uranium and turns it into uranium metal. Without uranium metal-
But we’ll see what happens. We’ll see if it’s verified. But according to the reports, most of the material remained at Fordo because the Iranians were calculating this was the most heavily fortified facility. They were also calculating that President Trump was not going to strike it because what they had been doing was listening to lots of voices and we can name the voices or we can just talk to them about a collective who they thought were telling Trump, “Don’t do it,” and we’re telling Trump “Don’t do it.” And Trump decided on his own to do it. So they kept the enriched material at Fordo, and if that’s the case, it may be that much of it was destroyed. Again, caveat, it’s just one or two stories right now, one in NBC News and let’s see what happens over the coming days. But if that’s the case, that material may have been destroyed.
One other element that we haven’t even talked about at all today, which I think your listeners should be aware of, we talked a lot about nuclear weapons development, warhead development. What the Israelis did was they took out the top 15 nuclear weapons scientists who have been part of, remember I talked about that original Ahmad program and the development of those five atomic weapons? Well, some of them who are old enough come from the Ahmad program, which is the early two thousands. Some of them are new, but they’ve, or not new, but younger, and they’ve been trained by the veterans, the 15 top guys taken out. That is akin to its January or February 45, and the entire central team of Oppenheimer gets eliminated three to four months between the Trinity test, before the Trinity test where we explode our first nuclear weapon. So I would say significant damage to Iran’s nuclear weapons program suggests that we potentially have rolled them back for years.
I don’t know how many years and all those technical assessments are still to come, but significant damage. So the question as I said is have they retained enough capabilities that they’ve squirreled away, stored in covert sites, put under deeply buried tunnels to break out to nuclear weapons? Scott’s concern, it’s my concern, I’m sure it’s your concern that they could do that or have they set back the program so significantly that Khamenei then has to decide, “Will I be inviting another Israeli and or US attack if I try to break out? And if I do, do I risk my regime?”
But I think that it’s clear, when the Ayatollah was willing in the JCPOA to, well, first of all, to sign the additional protocol back in the W. Bush years, for three years, he didn’t enrich anything under that deal as long as he was negotiating with the E3 and then under the JCPOA where he’s shipping out every bit of his declared nuclear material, he’s clearly keeping the ability to enrich if necessary to weapons grade if a crisis breaks out and he feels like he has to make nukes. But he had no stockpile to enrich this whole thing about 99% of the way there. He had no stockpile. So even if you count gassing up your truck on the way to the mine as part of this long timescale of percentages here, they were much further from a nuke under the deal, which he agrees we shouldn’t have even gotten out of.
And look at what he did. When they assassinated Soleimani, he sent essentially a symbolic strike at an empty corner of an American base in Iraq. It did cause some concussions and head trauma, but he deliberately did that to not cause casualties and then Trump let him have the last word. And then also when they shot down the drone, which I think Trump was suspicious that the Pentagon had flown that into Iranian airspace and they demanded strikes and Trump said “No, it’s just a drone. How many Iranians will die at the base you want me to hit? No, I don’t want to kill them. I don’t want to do it.” And again, he let the Ayatollah get the last word. Same thing happened again with yesterday’s strikes. Iran hit America’s, our central command headquarters to al-Yudid air base in Qatar and also an American base I think in Baghdad, and I’m not sure about in Iraqi Kurdistan.
He’s going to decimate our naval base at Bahrain. He’s going to slaughter all our troops in Kuwait. And then what’s Trump going to do? And so the Ayatollah knows. So it’s the same people who, and I don’t include him in this, but you hear a lot of the hawkish talk about just how easy this has been, these same people talking about what an absolutely irrational religiously motivated and therefore crazy and irrational group of people the Mullahs are, and why they can only be dealt with with force when in fact what they’re showing is essential conservatism, trying to hold onto what they got, making a latent deterrent because they know if they break out toward a bomb, that’ll get them bombed. So they were hoping having a latent deterrent would be enough to just keep them at the status quo.
That’s why it’s so disingenuous, just again with Marco Rubio, the Secretary of State saying, “Forget the intelligence,” because 60%, hey, it’s 99% of the way there, close enough for us. So it doesn’t matter if the Ayatollah’s decided to make or nuke or not. They’re just too close to one as it is, which is really silly because they’re not much closer than they’ve been for 20 years. Since the W. Bush administration, they proved they’ve mastered the fuel cycle.
It was 1988 and Iran and Iraq had fought this brutal eight-year war, a million people dead. And the United States accidentally shot down a Iranian passenger airline. United States offered to pay compensation and apologized. And the Iranians didn’t believe it. They didn’t believe we could accidentally do that. They thought we were going to be intervening militarily on behalf of Saddam. So Khamenei, who’s not the supreme leader at the time, he was the Iranian president. He and Rafsanjani, they go to Khomeini and they say, “Mr. Ayatollah, we got to sue for peace with the Iraqis because the Americans are intervening and we cannot fight the Americans. We fought this brutal war. We’ll continue with Saddam. We cannot fight the United States of America.” I think Scott’s right, that perception that there’s no way they can fight the United States of America because that’s regime ending potentially, even if we don’t intend to, that could actually happen.
And there’s a famous line where Khomeini says, “All right, I agree. I will drink the poison chalice. I’ll drink the poison chalice and I will agree to a ceasefire on pretty tough terms for Iran.” It’s interesting, now, 36 years later or 37 years later, Khamenei is now got to decide to drink the poison chalice. Does he agree to a negotiated deal with the United States? Does he agree to deal that President Trump? And I mean, Scott criticizes me for it, but that’s president Trump’s position is no enrichment, full dismantlement, by the way, that’s backed up by 52 of 53 Republican senators and 177 House GOP members and backed by everybody in his administration, including JD Vance, who’s been emphatic about that. Does he agree to that deal or does he decide, “I’m not going to drink the poison chalice and I’m going to take other options.” Now, I agree with Scott, going after US military bases, except in a symbolic way, suicidal.
Closing the Straits of Hormuz, 40% of Chinese oil goes through there. The Chinese have been saying to Iranians, “Don’t you dare.” By the way, a hundred percent of Iranian oil goes from Iran in Karg Island through the Straits of Hormuz. So economically suicidal for the Iranians to do that. Terror attacks, absolutely. I mean that has been their modus operandi for years. So I would be concerned about terrorist attacks against US targets against civilians, potentially sleeper cells in the United States. So he’s used Tera cells around the world. He’s engaged in a decades long assassination campaign, including on American soil, by the way, sometimes successfully, sometimes not, including most recently, where he went after an Iranian American three times to try to assassinate her in New York, a woman named Masih Alinejad. And so he’s got to be calculating what is my play? So if I don’t do a deal, how can I actually squeeze the Americans? And Scott’s right.
He must be thinking to himself, “You know what? I was literally on the 99 yard line with an entire nuclear weapons capability. I should have crossed the goal line. If I had had a warhead, a nuclear warhead, or multiple nuclear warheads as they had been trying to build since the Ahmad plan in early 2000s, there’s no way Israel and the United States would’ve hit me militarily if I had nuclear weapons, then I would’ve had the ultimate deterrence to prevent that. And then I would be like Kim Jong-un with nuclear weapons. I would then build ICBMs and then I’d have the ultimate deterrent to stop that.” So he’s got to be thinking “Maybe now,” and I can guarantee you the revolutionary guards-
I’ve just said, “Curb your enthusiasm.” Khamenei remains very dangerous. The regime reigns very dangerous. A wounded animal is the most dangerous animal in the animal kingdom. He retains key capabilities to build weapons.
You can read Perfect Soldiers by Terry McDermott, or you could read The Looming Tower by Lawrence Wright, where both of them explained how when Shimon Peres launched Operation Grapes of Wrath, that Ramzi bin al-Shibh and Mohammed Atta filled out their last will and testament, which was like symbolically joining the army to fight against the infidels, et cetera, et cetera.
And when Bin Laden put out his first declaration of war, a couple of months later, it began with a whole rant about the 106 women and children that Naftali Bennett had killed with an artillery strike in a UN shelter in Qana in 1996. And he said, “We’ll never forget the severed arms and heads and legs of the little babies,” et cetera.
And it was then that Mohammed Atta and Ramzi bin Al-Shib decided that they would join Al-Qaeda and that these Egyptian engineering students studying in Hamburg, Germany would volunteer for the Saudi Sheik to kill 3000 Americans to get revenge for what Israel was doing to helpless women and children in Lebanon. As well as, of course, what’s going on in Palestine.
And it’s about how the number one reason they attacked us was American bases on Saudi soil, they bombed Iraq as part of Israel’s dual containment policy. And the second reason was American support for Israel in their merciless persecution of the Palestinians and the Lebanese.
And I’ve never heard a pro, in fact … I take that back. There’s one guy, a liberal from the Nation magazine named Eric Alterman is the only pro-Israel guy I’ve ever heard say, “Well, that may be true, but I still say we got to support Israel anyway.”
The others, they’ll just pretend that Terry McDermott never wrote that book. That Lawrence Wright never wrote that book. That Mohammed Atta had no motive to turn on the United States except for Muhammad made him do it. When in fact, what it was is it was the ultra violence of Shimon Peres and artillery officer Naftali Bennett slaughtering women and children that turned America’s mercenaries.
America backed the Arab Afghan army in Afghanistan, in Bosnia, in Kosovo, and in Chechnya, as I demonstrate in my book. And yet, as he correctly says, they turned on us all through the 1990s. Bill Clinton was still backing them anyway, after they were attacking us and including at Khobar Towers, and they were doing that.
This was a Bin Ladenite plot, not Hezbollah, not the Shiites. This was the Bin Ladenites getting revenge against us for support for Israel and being too close to their local dictators that they wanted to overthrow, namely the King of Saudi and the El Presidente of Egypt.
That is the cause of the September 11th attack against the United States. Not the Taliban hate freedom, but the Bin Ladenites hate American support for Israel and America adopting Israeli-centric policies like Martin Indyk’s dual-containment policy in 1983.
If you look like 10, 20 years out now, does the US attacking Iran, does that send a message, even to MBS to other Middle Eastern nations, that they need to start thinking about a nuclear weapon program? Specifically, do you think just in a numbers way, does the number of nukes in the world go up in 10, 20, 30 years?
So I actually think there’ll be less, and I’ll tell you succinctly as I can. And that is, that it’s been very clear from the Saudis, from the Turks, certainly from even the Algerians and others, that if Iran gets a nuclear weapon, they too want a nuclear weapon.
In fact, the Saudis have gone even further and said, “If Iran is allowed to retain the key enrichment capability that they have under JCPOA, that we want that too. If there’s an Iran standard, we want the Iran standard. We don’t want the gold standard.”
In fact, that’s been the subject of intensive negotiations between the United States and Saudi Arabia for the past couple of years, both under Biden and Trump, as part of the US-Saudi defense agreement, an economic agreement that has been underway.
It’s very clear that there’s going to be a proliferation cascade in the Middle East if the Iranians get a nuclear weapon. And certainly, if they’re allowed to retain this enrichment capability. I also worry about, we haven’t even talked about it at all this conversation, the most important area in the world for the United States is not the Middle East. It’s China and the Indo-Pacific.
And I worry that the South Koreans, the Taiwanese, and the Japanese will say, “You know what? We don’t trust any US commitments to stop nuclear weapons. You failed on Iran. We don’t trust you. We don’t trust your nuclear umbrella. We too want nuclear weapons in order to guard our security against China.”
And so what you would see, I hope it doesn’t happen but I worry about, is this proliferation cascade in the Middle East and in the Indo-Pacific. Two of the most important areas for American national security, which is why I think it’s very important that Iran’s be stopped.
Now, whether this attack succeeds in stopping Iran’s nuclear weapon or accelerates it, we disagree, but I think neither us know yet. Hard to predict. But what I think is absolutely certain is that if Iran develops that nuclear weapon and is allowed to retain the key capabilities to do so, you’re going to see five, six countries in the Middle East, at least three, four countries in the Indo-Pacific asking for the same capability. And then you’re going to have a club of nuclear weapons powers that will have an additional 5, 6, 7 over the next 10 to 20 years.
Now, I’m not suggesting the United States is going to start bombing the Saudis or the Turks or the Emiratis. Clearly, not the Japanese, many of them are allies. But I think the United States retains many counter-proliferation tools to prevent these countries from developing nuclear weapons, including sanctions and export controls, and many other things.
And plus, I think those countries … Understand, that in the Middle East, despite Scott’s focus on Israel, when you talk to Arab leaders, their biggest concern is the threat from Iran. It’s not the threat from Israel. They’re not concerned with the threat from Israel. That’s why he had the Abraham Accords.
This is why the UAE and Bahrain and Morocco entered into this peace agreement with Israel. The Saudis will one day and they’ll bring many other Arab and Muslim countries in it. They don’t say Israel is a threat. They see Iran as a threat. And so if you counter that threat, you eliminate Iran’s nuclear weapons, proliferation and expansion, those countries now no longer have to build nuclear capabilities to counter the Iranians.
Now, we’ve also restored our credibility. We don’t bluff. We said Iran doesn’t develop nuclear weapons. They won’t. And now it’s the Japanese who have, as Scott rightly pointed out, they do have reprocessing and plutonium capabilities. The Taiwanese who used to have a military nuclear weapons program and gave it up. And the South Koreans who agreed to our gold standard of zero enrichment, zero reprocessing. Those three countries can now say, “Okay, we rely on the United States. On your word, on your power, and on your ability to actually turn words into action. We don’t need nuclear weapons.”
So I’d say if successful, big if, big if. If successful, then it’s going to be a significant guard against the potential of greater nuclear proliferation/ and we will have less nuclear weapons powers than we otherwise would’ve.
Now for the Saudis, they’re not going to do that, because they’re obviously a very close American client state, so it’s a different dynamic there. But for any country that has trouble with the United States or is worried about the future of their ability to maintain their national sovereignty, obviously getting their hands on an A-bomb as quickly as possible has been re-incentivized to a great degree.
Also, I’m really worried about the future of the Non-Proliferation Treaty with a nuclear weapons state’s promise to respect the right of non-nuclear weapons states to civilian nuclear energy. And where here you have a non-NPT signatory nuclear weapons state, Israel, launch an aggressive war against an NPT signatory that was not attacking them and was not making nuclear weapons. And with the assistance of the world empire, the United States, another nuclear weapons state signatory to the NPT.
And I don’t really take this that seriously, but it’s worth at least listening to, is Medvedev, the once and probably future president of Russia. He said, “Oh yeah, well maybe we’ll just give him a nuke,” or implied maybe give Pakistan too. Now for people familiar with Key & Peele, Medvedev is angry at Obama, right? For Putin, that skit where it’s Obama talks all calm.
Now, when it comes to Eastern Asia, obviously there’s a concern about a Chinese threat to Taiwan, but nobody thinks China’s coming for South Korea or Japan. The question of Taiwan is one that’s very different because as the American president agreed with Mao Zedong years ago, Taiwan is part of China and eventually will be reunited, although we hope that’s not by force.
Since then, they have essentially abandoned Marxism, although it’s still a one-party authoritarian state. But they’ve essentially abandoned Marxism, adopted markets. At least to the degree that they’ve been able to afford to now build up a giant naval force that is capable of retaking Taiwan.
And so I think the way to prevent that is not from making a bunch of threats and setting examples in other places about how tough we are, but to negotiate with the Chinese and the Taiwanese. And figure out a way to reunite the two in a peaceful way in order to prevent that war from breaking out.
Because in fact, we don’t really have the naval and air capability to defend Taiwan. We could lose a lot of guys trying and probably kill a lot of Chinese trying. But in the end, they’d probably take Taiwan anyway. And we’d have lost a bunch of ships and planes for nothing. So we can negotiate an end to that.
And then even if America just withdrew from the region, we could still negotiate long-term agreements between China, Japan, South Korea, and whoever. There’s no reason to think that everyone would make a mad scramble to a bomb to protect them the moment they are out from under America’s nuclear umbrella and so forth.
And the fact of the matter is that the greatest threat to the status quo as far as the nuclear powers go, probably is what just happened. America and Israel launching this war against a non-nuclear weapon state as a member in good standing of this treaty, throws the whole, as they call it, the liberal rules-based world order into question.
If these rules repeatedly always apply to everyone else, but very often not to us, then are they really the law? Or this is just the will of men in Washington, D.C.? And how long do we expect the rest of the world to go ahead and abide by that? If a deal is a deal until we decide, as Bill Clinton said, to wake up one morning and decide that we don’t like it anymore and change it. That was a phrase from the Founding Act of ’97. Maybe we’ll wake up one morning and decide that we all want to do something else entirely.
First of all, the notion that Iran is in full compliance with the NPT is just not the case. The International Atomic Energy Agency has made it clear in report after report after report that Iran is in violation of its obligations under the protocols of the IAEA. Under the request that the IAEA have made and under the NPT.
So they are a serial violator of the NPT, unlike all these other countries we’ve been talking about that are our allies. Second is this quote, “Iran is not attacking Israel.” That’s quite an amazing quote, which kind of ignores, I think 50, 60 years of Iranian attacks against Israel, including suicide bombings, and missiles, and drones, and October 7th.
And it’s indisputable that Iran has been attacking Israel and they’ve been doing it for many years through their terror proxies that they fund and finance and weaponize. And since October 7th, they directly struck Israel with hundreds of ballistic missiles in April and October of last year.
So this notion that before 12 days ago, Iranians were just playing nice with the Israelis and the Israelis just came out out of the blue-
Now at those three meetings right before October 7th, maybe they’re discussing the weather. Maybe they were discussing Persian poetry, I don’t know, but it’s hard to believe they weren’t discussing something. And the fact that they had armed Hamas, financed Hamas, and weaponized Hamas, suggests to me that there is pretty overwhelming evidence that Iran has been at war with Israel for decades.
And then later that’s verified. And they go, “Yeah, well, we want to inspect this. Let us.” And they go, “No.” And then they do a year later, and then they find nothing there.
The fact of the matter is, is that Iran has been in violations of its obligations under the NPT. Under the additional protocol, it never ratified under its safeguards obligations under the NPT. It suggests a pattern of nuclear mendacity.
But there is people that will say that Operation Midnight Hammer is actually a focused, hard demonstration of strength. A piece of strength that is an effective way to do geopolitics. There’s cases to be made for all of it.
Again, the deal has to be no enrichment full dismantlement. I think for the reasons we talked about today, Scott and I passionately disagreed, but that’s fine. This is a reasonable debate. Neither of us is crazy. Neither of us is irrational. It is, what would it take to get a deal with Iran? I’d say, this is the deal. This has to be our red line. Scott disagrees. That’s fine, but we got to get a deal.
In that deal, we got to provide them financial incentives. We’re going to have to lift a certain number of sanctions because they’re going to have to get something in return. We can argue about exactly how much, but I think our opening negotiating position is no-sanctions relief. And then we’ll get negotiated down from that. Right?
I think a lot of this is about how do you position yourself for negotiation? How do you come in with leverage? And then how do you find areas of compromise where you satisfy your objectives? One is Oman. Two is the credible threat of military force needs to remain, right?
Khamenei needs to understand that the United States of America and Israel will use military force to stop him from developing nuclear weapons. If he didn’t believe that before, 12 days ago, he now believes that. And I think that’s the credibility of that military force has to be maintained in order to ensure that he does not break out or sneak out to a nuclear weapon. I think that’s absolutely critical.
Third is I think we have to reach agreements with all the other countries in the Middle East to say, “Hey, listen, we’re demanding zero enrichment and full dismantlement from the Iranians. You don’t get enrichment. And you don’t get a nuclear program that is capable of developing nuclear weapons. Our gold standard is the American standard.”
Civilian nuclear energy, like 23 countries, no enrichment in reprocess. We should be consistent. We should be consistent, not just with American allies, but also very clear with American enemies. I think that’s the third important thing we do.
Fourth is I think it’s really important that we find some accommodation between the Israelis and the Palestinians. We can go down many rabbit holes on that, but I think that lays the predicate for a Saudi-Israeli normalization deal that then brings in multiple Arab countries and Muslim countries.
And finally, is we talked about the Abraham Accords. I think we need to start thinking about what do the Cyrus Accords look like, right? Cyrus was the great Persian king who, by the way, brought the Jews back from the diaspora to Jerusalem. And Cyrus Accords would be, “Let’s find an agreement between the United States and Israel and Iran.” That would be a remarkable transformation in the region if we could actually do that.
So imagine a Middle East, and again, I know this sounds fanciful. But I think this is what Trump has in mind when he starts to talk about the things you’re seeing in these Truth posts. Is actually a Middle East that can be fundamentally transformed where we actually do bring peace between Israel, Iran, Saudi Arabia, and the rest of these countries.
I, by the way, completely agree with you on Syria. The idea that we are trusting a former Al-Qaeda ISIS jihadist to rule Syria, I think is a big bet President Trump has made. He’s made it on the advice of MBS. We’ll see how that transforms or transpires, and see if Syria is transformed. But the notion that somehow we should just be rolling the dice, lifting all the sanctions, and taking this former Al-Qaeda jihadist at his word is a big bet.
If we got the bet right, that is actually a remarkable occurrence because now all of a sudden Syria and Lebanon are brought into this Abraham Accords, Cyrus Accords structure. And then we actually have what I think all three of us want is peace in the Middle East, stability in the Middle East. I don’t think we need democracy in the Middle East.
I think if the Middle East looked like the UAE, that’d be a pretty good Middle East. I think we’d all be pretty comfortable with that if that kind of stability and prosperity. And ultimately, you could put these countries on a pathway to greater democracy. The way that we did during the Cold War where countries like Taiwan and South Korea that were military dictatorships ended up becoming pro-Western democracy.
So that’s, stepping back, maybe a little bit Pollyannish. But I think we should also always keep in mind what a potential vision for peace could look like.
And so some libertarians are anarcho-capitalists. Some are so-called minarchists, meaning we want the absolute minimum amount of government, a night-watchman-type state. In other words, just enough to enforce contracts and protect property rights and allow freedom and a free market to work.
There’s also, of course, natural rights theory, Austrian school economics and a lot of revisionist history. And something very key to libertarian theory is expressed by Murray Rothbard was that war is the key to the whole libertarian business. Because, especially in the United States of America, as long as we maintain a world empire, makes it impossible for us to have a limited and decentralized government here at home as our constitution describes.
And so I was going to crack a joke, but neither of you have called me an isolationist yet. But I was going to joke that yes, as Thomas Jefferson wrote in the Declaration of Isolation, the same guy, a principal author of the Declaration of Isolation, he said in his first inaugural address, “We seek peace, commerce, and honest friendship with all nations and entangling alliances with none.”
And that’s the true libertarian philosophy. Think Dr. Ron Paul, the great Congressman for many years up there. He was opposed to all sanctions, all economic war on the rest of the world, and the entire state of the United States as world empire.
And what’s strange now is that anyone who wants just peace as the standard is considered an isolationist. And people who are for world empire and a permanent state of conflict with the rest of the world, economic war, coups and regime changes, and even invasions, those are considered normal people.
It’s almost like people who want peace should be called cis foreign policy because now we have to come up with a funny word to describe a normal state of being when no one calls Mexico an isolationist state, just because they mind their own business. And is there any faction anywhere in America that calls themselves isolationist?
Even the Paleoconservatives who favor much more trade protectionism and that kind of thing than libertarians, they don’t call themselves isolationists. They still want to have an open relationship with the world to some degree. When isolation means like the hermit kingdom of North Korea or some crazy thing like that. No one wants that for the United States of America. What we want is independence.
So there are great many borders in the world that are in contention and that people might even want to fight about. And I think that America could play a wonderful role in helping to negotiate and resolve those types of conflicts without resorting to force or even making any promises on the part of the US government, like we’ll pay Egypt to pretend to be nice to Israel or anything like that, but just find ways to host conferences and find resolutions to these problems. And I think quite sincerely that Donald Trump right now could get on a plane to Tehran. He could then go to Moscow, to Beijing and Pyongyang, and he could come home and be Trump The Great. We in fact don’t have to have, especially the American hyper power as the French called it, of the World Empire. We have everything to give and nothing to lose to go ahead. And Donald Trump even talked like this.
You might remember when he first was sworn in this time, he said, “You know what? Instead of pivoting from terrorism to great power competition with Russia and China, I don’t want to do that. I just want to get along with both of them. Let’s just move on and have the rest of the century be peace and prosperity and not fighting at all. Why should we have to pivot to China? Let’s just pivot to capitalism and trade and freedom. And peace.” That’s America first.
And again, to stipulate here, the Chinese flag is still red. It’s still a one-party dictatorship, but they have abandoned Marxism. I mean, people were starving to death by the tens of millions there. It’s a huge, it’s probably the greatest improvement in the condition of mankind anywhere ever in the shortest amount of time when Deng Xiaoping in the right of the Communist Party took over in that country.
They literally were within a hair and it wasn’t magic and there was no trust in evil, bad guys. This is, by the way, two years before the wall came down, this is when everybody still thought the USSR was going to last. And Reagan, the plan was that America and the Soviet Union would dismantle our nuclear weapons until we were right around parity with the other nuclear weapon states who all have right around two or 300 nukes, France, Britain at that time, Israel and China, India and Pakistan came later. South Africa only had a few of them, but gave up whatever they had. And the idea was we would get down to two or 300 and then America and the Soviet Union both together would lean hard on Britain, France, and China, let’s all get down to 100. Let’s all see if we can get down to 50, etc. Like that in stages. Again, Ronald Reagan we’re talking about here, trust but verify means do not trust at all. It means be polite while you verify.
And in fact, America did help dismantle upwards of 60 something thousand Soviet nuclear missiles after the end of the Cold War. And so it is possible to live in a world where at the very least we have a situation where the major powers have a few nukes and potentially can even come to an arrangement to get rid of the rest.
And Ronald Reagan’s secretary of state, Alexander Haig, who had been Kissinger’s right-hand man, agreed. They both were trying to push that. But the Clinton administration went ahead with Martin Indick who had been Yitzhak Shamir’s man and inaugurated the dual containment policy instead, because the Israelis were concerned that America had just beaten up on Iraq so bad in Iraq War one that now Iraq wasn’t powerful enough to balance against Iran, so America had to stay in Saudi to balance against them both. And that was the origin of the dual containment policy. It was Martin Indick who had been Yitzhak Shamir’s man who pushed it on Clinton. And this was not the Israelis, it was the Kuwaitis who lied that there was a truck bomb attempt assassination against HW Bush, which was a total hoax. It was debunked by Seymour Hersh by the end of the year.
It was just a whiskey smuggling ring, and it was the same guy whose daughter had claimed to have seen the Iraqi soldiers throw the babies out of the incubators. He was the guy who two years later made up this hoax about Saddam Hussein trying to murder Bush Senior. But when he did, that was when Bill Clinton finally gave in and adopted the dual-containment policy, because he had been interested in potentially reaching out to Saddam and the Ayatollah both at that time, but instead of having normalization with both, we had to have permanent Cold War through the end of the century with both. And my argument is simply, it just didn’t have to be that way. It’s the same thing with Russia. Look at how determined the Democrats especially are to have this conflict with Russia where to Donald Trump? Nah, not at all. We could get along with them. And so it’s perfectly within reason.
If Zbigniew Brzezinski says, we can talk with Iran and get along with Iran, and Donald Trump says we can get along with Russia, then the same thing for North Korea, the same thing for China. And then who do we have left to fight? Hezbollah?
Hezbollah’s, nothing without Iran.
I think America first is about American power and deterrence. I think if you want to avoid war, I think you cannot just believe in some fantasy where all the world’s leaders are going to get together in some place and are just going to agree to disarm all their nuclear weapons and we’ll disarm our entire military and we’ll have one submarine off our coast. And some of all of that is going to lead to peace. I mean, I think what has led to peace in the past has been American for deterrence of our military and a belief that our enemies think we will credibly use it. I think if they believe we’ll credibly use it, then it’s less likely they will challenge us. And if they less likely to challenge us and challenge our allies, there’s less likely to be war. So for me, deterrence leads to peace and any kind of unilateral disarmament, any kind of, I think sort of fanciful notion that somehow our enemies are going to respect the non-aggression principle that is the core fundamental underpinnings of libertarianism, which I think in a personal relationship I think is very important.
But remember, these are aggressors, they don’t respect the non-aggression principle. I think we can spend a lot of time, we did over how many hours now has it been talking about the fact that in Scott’s view of the world, it’s America that provokes, it’s America that provokes, and then if not America provoking, it’s Israel provoking. And oh, by the way, America provokes because we’re being seduced or paid or brow beaten by those Israelis and those Jews in America. I mean, I think that whole notion that somehow we are the provocative force in global politics, I think is wrong. I think the fact of the matter is we make mistakes. We are an imperfect nation. We have made some serious, sometimes catastrophic mistakes, but there is a bad world out there. There are evil men who want to do us harm and we have to prevent them from doing us harm.
And to do that, we need an American military that is serious and well supported. We don’t need a military industrial complex that ultimately is going to pull us into wars. We need thoughtful leaders like President Trump who will resist that and will say, “At the end of the day, I will use force when it is selective, narrow, overwhelming, and deadly.” And that was Trump’s operation just a few days ago. He went after three key facilities that were being used to develop the capability for nuclear weapons. Nuclear weapons are the greatest danger to humanity. I totally agree with Scott. I think a world without nuclear weapons, the kind of world that Reagan envisioned and others have envisioned since is really the only way we can eliminate the most devastating weapons that could end humankind. But we have to make sure that those weapons don’t end up in the hands of regimes that seek to do us harm and that have done us harm over many, many decades.
So yeah, I mean deterrence, peace through strength, rules-based order. The foundation for defense of democracies is not the foundation for promotion of democracy. We don’t believe in this important concept that we have to promote democracy around the world. I’ll speak for myself, because we have many people at my think tank. We’re 105 people. We have different views. I don’t personally believe that it is the role of the United States to bring democracy to the Middle East or democracy around the world. I think to the extent we’ve tried, we failed. I’m not sure the Middle East is ready for democracy. Now, Iran is interesting because it’s not an Arab country. It is a different country altogether. Culturally, it’s a very sophisticated country. It has a long history. It actually has a history where it has had democracy in the past. It is a country that I think could have incredible potential under the right leadership and under right circumstances.
I don’t know if the right circumstances are a constitutional monarchy with Reza Pahlavi as the Crown Prince or the Shah. I don’t don’t know whether it’s a secular democracy or not. Let Iranians make that decision.
Our intervention, this was not a direct overt war, but America, Israel, Saudi, Qatar, and Turkey all backed the Bin Ladenites in Syria completely destroyed Syria to the point where the caliphate grew up. And then we had to launch Iraq War III to destroy the caliphate again. And so I’m not seeing the peace through strength. I’m seeing permanent militarism and permanent war through strength
The Houthis were our allies against them before Barack Obama stabbed them in the back. And why did Trump keep that going when he inherited that horrific war from Barack Obama? Why did he do it? According to his trade guy so that they could keep funneling American taxed and inflated dollars into the pocketbooks of stockholders of Raytheon Incorporated.
He refrained from going after the Iranian take down of our drone. He refrained from when the Iranians fired on Saudi Aramco and took off 20% of our oil. He’s been very, very selective about the use of American power. He did go after the Houthis who are Iran backed, and were using Iranian missiles to go after our ships.
I think Trump is much more pragmatic and in some respects, cynical when he looks at the world and he realizes the world is a dangerous place, I have to be very careful about how I use American military forces. I am not going to send hundreds of thousands of people around the world. By the way, I mean, we all talk about Israel. I mean, the Israelis are one of the best allies we could possibly have. They fight and they die in their own defense. They fought multiple wars against American enemies. They haven’t asked for American troops on the ground. There are no boots on the ground in Israel defending Israel. The best we’ve given them is we’ve given them a fad system to help them shoot down ballistic missiles that have aimed at them.
And our American pilots have been in the air recently with our Israeli friends shooting down ballistic missiles. But the Israelis have had a warrior ethos, we will fight and we will die in our own defense. I would just say, if you’re going to actually build out a model where you’re going to minimize the risk to American troops, let’s find more allies like that. I worry about, I’m like, Scott, I really worry about China, Taiwan. I really, really worry about that because the Taiwanese are not capable of defending themselves without U.S assistance. And we may have to send American men and women to go defend Taiwan, and we can have a whole debate about the wisdom of that. But again, it would be very, very helpful to have more Israelis in the world, more countries that are capable of fighting against common enemies and against common threats without having to always put American boots on the ground in order to do that.
And I think Trump is using that and will use that as a sort of Damocles hanging over Putin and the Russian economy to say, “Look, if Vladimir, we either do a ceasefire or I’m going to have no choice but to have to start imposing much more punishing sanctions on you and on the Russian economy.” So I think there’s an economic option. I think there’s a military option. And I think the biggest mistake Biden made in this whole war, and there’s many mistakes in terms of signaling not having US credibility. Afghan debacle, which signaled to Putin that he could invade without any kind of American response is he kind of went in and he tied Ukraine’s hands behind their back. I mean, he actually tied one hand behind their back while they were fighting with the other hand. And he refused to give him the kinds of systems that early on in the war would’ve allowed the Ukrainian military to be able to hit Russian forces that were mobilizing on the Russian-Ukrainian border.
And I think if he had done that, I think this war would’ve ended sooner. There’d be far less casualties. And I think Putin would then understand maybe I need to strike a deal. I’m not a Russia expert or Ukraine expert. I don’t know what the deal looks like. You keep the Donbas, you keep Crimea, you keep larger chunks of Eastern Ukraine. That’s for smarter people than me on this issue to decide what the deal looks like. But there’s no doubt today Putin thinks that he can just keep fighting, keep killing Ukrainians, keep driving forward. Eventually, he’s going to wear down the Ukrainians through a sheer war of attrition. He’ll throw hundreds of thousands of Russians at this. He doesn’t care how many Russians are going to die.
That’s the way that Russians and the Soviets have fought wars for many, many years. Just endless number of Russian bodies being thrown into the meat grinder. He thinks he can continue without any consequences. And I worry that as a result of the fact that we are not showing Putin that we’ve got leverage, it’s made war more likely, it’s made a war more brutal, and it’s going to make a war more proactive.
And I think in some respects, it’s like today with a contemporary reality with Khamenei, is that because these isolationist voices were so prominent and so vocal and in some cases quite persuasive to American leaders, Hitler calculated that the United States would not enter the war. And so he could do what Scott says, he could focus on the eastern front, he could gather his forces, and then he could do a kill shot on the Western democracies in Western Europe. And the United States would not intervene. I mean, you’re right. The big mistake he makes is declaring war on the United States after Pearl Harbor. But he believes all through the ’30s and before Pearl Harbor that the isolationist voices are keeping FDR from entering the war even while Churchill and the Brits and the French and others are imploring the Americans, not only just to provide them with material support with weapons so that they could hold onto the island and defend themselves.
And I think Hitler miscalculates. In the same way I think Khamenei miscalculates. Khamenei heard the debate over the past number of years. He believed that the sort of isolationist wing of the Republican Party represented, I think by Tucker Carlson and others who have been very anti-intervention with respect to Iran. I think he believed that that was the dominant voice within Trump’s MAGA coalition, and that as a result, the United States would not use military force. So in the same way that Hitler miscalculated the influence of the isolationists on FDR, Khamenei misjudged the influence of the isolationists on Trump and both ended up miscalculating to their great regret. So to me, that’s the sort of parallel between World War II in the ’30s and the prelude to World War II and what we’re seeing in the current reality over the past few weeks.
They sent an emissary to meet with Richard Pearl in London, that was who was the chair of the Defense Policy Board and was a major ringleader of getting us into a Iraq War II. And then, I don’t know why, this is a real mistake. If you want to talk about Saddam’s mistakes, why does he always send his guys to meet with Richard Pearl? Because there was a Saudi businessman, pardon me, Lebanese businessman, I think that they tried to get to intervene as well, who again offered virtually total capitulation. And Pearl told him, “Tell Saddam, we’ll see you in Baghdad,” after he was attempting to essentially unconditionally surrender.
The same thing happened with Iran in 2003. Right after America invaded they issue what was called the golden offer, which the Bush administration buried and they castigated the Swiss ambassador who had delivered it, but in the golden offer, and you can find the PDF file of it online they talk about, “We’re happy to negotiate with you our entire nuclear program,” which didn’t even really exist yet, but nuclearization, “We’re willing to negotiate with you about Afghanistan and Iraq,” because again, they hated Saddam Hussein and wanted rid of him too. They’re perfectly happy to work with us on Afghanistan and Iraq. And they had captured a bunch of Bin Ladenites and they were willing to trade them for the MEK. And that included one of Bin Laden’s sons and another guy named Atef, both of whom the Iranians held under house arrest for years. And it was only in the, I think late Obama-
I hope the libertarians create one. I want to go live there when they do, and Scott and I will be neighbors, believe it or not, living in that Garden of Eden together. But there are major threats in this world, and we need to find the right balance between the overuse of military power and the underuse of military power. If we want to avoid wars, we have to have serious deterrents because our enemies need to understand we will use selective and narrowly focused overwhelming military power when we are facing threats like an Iranian nuclear weapon. That is a serious threat. It’s a serious threat to us. It’s a serious threat to the region. It’s a serious threat with respect to proliferation around the world. And I think with that respect, I think President Trump’s decision to drop bombs on three key nuclear facilities was a selective targeted military action that I hope will drive the Iranians back to the negotiating table where they can negotiate finally the dismantlement of their nuclear weapons program. I think there’s a danger-
And we’ve seen the results of that, where we delayed and delayed and delayed, and we didn’t move and we didn’t move too early and we didn’t preempt, and the threat grew and we ignored gathering storm. And so I think the lessons of a hundred years of American military involvement is if you have an opportunity early on as the storm is gathering to use all instruments of American power, with the military one being the last one you use, then deter when you can and strike when you must in order to prevent the kinds of escalation and wars that everybody at this table, and I’m sure everybody listening in your audience is seeking to avoid.
It’s always an unfinished project, so that then we really have something to point to the rest of the world and say, “This is how you’re supposed to do it. Not like that.” I think it’s crucial that for all of the problems that Somalia, Syria, Libya, Iraq, Afghanistan have, the worst thing about those countries is America’s wars there. It’s what we have done to them is the worst thing about those places. So we’re not in much of a position to criticize whatever horrible and political practices, cultural and things about their societies that we would like to criticize when the worst chaos that’s happened to them has been inflicted by our country against them virtually all in wars of choice that were unnecessary from the get-go.
While many of our other institutions are failing the American people and are reflected in the polling, I think we’ve got to be very judicious about how we use this incredibly powerful military because most importantly, it comes down to it’s not about weapons and technology, it’s about the people, it’s about the men and women who have sacrificed their lives to serve our country. At the end of the day, if we understand we have adversaries, we’re careful about how we use our military, we understand the importance of for deterrence in order to actually confront threats before they become so severe that we ended up plunging ourselves in a war. I agree totally with Scott in terms of how we use our money and how judiciously we have to guard it. I agree with how we’ve run out these massive debts and we have to be actually, if we’re serious, and conservatives are really serious, they need to tackle these massive budgets deficits.
And it would be really easy if it was just all about the military and we could just kind of get rid of the Pentagon and all of a sudden we’d be running balanced budgets. It’s not the case. We have much deeper structural economic problems in this country and everybody knows that. And so we got huge challenges as a country, but I really believe, as I believe since I was a little kid, that America is the greatest force for good in the world and that we make mistakes, sometimes tragic mistakes. We make huge miscalculations. And I think we will be much more clear in how to rectify those mistakes if we stop obsessing with these bogeymen that are out there, the Israelis, the Jews, the Influencers-
And I think Donald Trump in the past couple of weeks, I would argue in the past number of months, has try to play a strategy, try to figure out a way to offer the Iranians negotiations and a peaceful solution to this, but used overwhelming military power recently against Iran’s nuclear sites in a very targeted way in order to send a message to the Islamic Republic of Iran that they cannot continue to build nuclear weapons and threaten America.
And so I hope that things will work out well on this. I’ve always said curb your enthusiasm because we have still a lot of pieces that still need to fall into place and this is going to be a windy road as we try to figure this out. I’m hoping for the best, preparing for the worst and want to thank you very much for having me on the show. Scott, it was a real pleasure to meet you. I enjoyed the debate, very lively, I admire your dedication to the issue and your attention of detail, and I think all of that speaks well of you and your commitment and your passion for this. Thank you.
“Every gun that is made, every warship launched, every rocket fired, signifies in the final sense, a theft from those who hunger and are not fed. Those who are cold and are not clothed. This world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientist, the hopes of its children. The cost of one modern heavy bomber is this, a modern brick school in more than 30 cities. It’s two electric power plants, each serving a town of 60,000 population. It is two fully equipped hospitals. It is some 50 miles of concrete highway. We pay for a single fighter plane with a half million bushels of wheat. We pay for a single destroyer with new homes that could have housed more than 8,000 people. This is not a way of life at all, in any true sense. Under the cloud of threatening war, that is humanity hanging from a cost of iron.”
And now allow me to have some additional brief excerpts. In 1946, Eisenhower said, “I hate war as only a soldier who has lived it can, only as one who has seen its brutality, its futility, its stupidity.” In 1950, Eisenhower said, “Possibly my hatred of war blinds me so that I cannot comprehend the arguments they adduce. But in my opinion, there’s no such thing as a preventative war. Although the suggestion is repeatedly made, none has yet explained how war prevents war. Worse than this, no one has been able to explain away the fact that war creates the conditions that beget war.” And finally, an excerpt from Eisenhower’s farewell address in 1961 on the military-industrial complex.
“A vital element in keeping the peace is our military establishment. Our arms must be mighty, ready for instant action so that no potential aggressor may be tempted to risk his own destruction. American makers of plowshares could, with time and as required, make swords as well. But now we can no longer risk emergency improvisation of national defense. We have been compelled to create a permanent armaments industry of vast proportions. This conjunction of an immense military establishment and a large arms industry is new in the American experience. Yet we must not fail to comprehend its grave implications. In the councils of government, we must guard against an acquisition of unwarranted influence, whether sought or unsought by the military-industrial complex. The potential for the disastrous rise of misplaced power exists and will persist.”
Thank you listening and hope to see you next time.
Click link to jump approximately to that part in the transcript:
- 0:00 – Episode highlight
- 1:15 – Introduction
- 2:18 – Iran-Israel War
- 11:00 – Iran’s Nuclear Program
- 42:52 – Nuclear weapons and uranium
- 54:55 – Nuclear deal
- 1:20:29 – Iran Nuclear Archive
- 1:43:06 – Best case and worst case near-term future
- 2:18:30 – US attack on Iran
- 2:42:04 – Nuclear proliferation in the future
- 3:03:02 – Libertarianism
- 3:15:51 – Foundation for Defense of Democracies (FDD)
- 3:31:26 – Trump and Peacemaking process
- 3:36:23 – WW2
- 3:49:23 – WW3
Episode highlight
Mark Dubowitz
We want to avoid wars, we have to have serious deterrence because our enemies need to understand, we will use selective, focused, overwhelming military power when we are facing threats like an Iranian nuclear weapon.
We want to avoid wars, we have to have serious deterrence because our enemies need to understand, we will use selective, focused, overwhelming military power when we are facing threats like an Iranian nuclear weapon.
Scott Horton
I’m not seeing the peace through strength. I’m seeing permanent militarism and permanent war through strength.
I’m not seeing the peace through strength. I’m seeing permanent militarism and permanent war through strength.
Mark Dubowitz
Do you ever hold our adversaries responsible or do you just don’t think we have any adversaries?
Do you ever hold our adversaries responsible or do you just don’t think we have any adversaries?
Scott Horton
The easiest kind of nuke to make out of uranium is a simple gun type nuke.
The easiest kind of nuke to make out of uranium is a simple gun type nuke.
Mark Dubowitz
Are you saying that Mossad fabricated it?
Are you saying that Mossad fabricated it?
Scott Horton
Yeah.
Yeah.
Mark Dubowitz
That’s what you’re claiming. Here’s the offer, take it to leave it. Zero enrichment full dismantlement.
That’s what you’re claiming. Here’s the offer, take it to leave it. Zero enrichment full dismantlement.
Scott Horton
Through the Iranians, told the IAEA, you can inspect any five out 10 facilities here, carte blanche, go ahead and they did and found nothing.
Through the Iranians, told the IAEA, you can inspect any five out 10 facilities here, carte blanche, go ahead and they did and found nothing.
Mark Dubowitz
Experts in Iran’s nuclear program, including David Albright, who actually saw the archive, went in there, wrote a whole book on it, and there’s a lot of detail about how Iran had an active nuclear weapons program called AMAD to build five nuclear weapons.
Experts in Iran’s nuclear program, including David Albright, who actually saw the archive, went in there, wrote a whole book on it, and there’s a lot of detail about how Iran had an active nuclear weapons program called AMAD to build five nuclear weapons.
Scott Horton
I have to refute virtually everything he just said, which is completely false.
I have to refute virtually everything he just said, which is completely false.
Mark Dubowitz
I mean really everything? There was not one thing I said that was true? Just one thing.
I mean really everything? There was not one thing I said that was true? Just one thing.
Scott Horton
I mean Iran is a nation over there somewhere. You got that part right.
I mean Iran is a nation over there somewhere. You got that part right.
Mark Dubowitz
22 years of working on Iran and I got that right.
22 years of working on Iran and I got that right.
Lex Fridman
But do you know the population of Iran?
But do you know the population of Iran?
Mark Dubowitz
92 million.
92 million.
Lex Fridman
Okay.
Okay.
Scott Horton
Give me a pound, dude.
Give me a pound, dude.
Lex Fridman
There we go, agreement.
There we go, agreement.
Introduction
Lex Fridman
The following is a debate between Scott Horton and Mark Dubowitz on the topic of Iran and Israel. Scott Horton is author and editorial director of Ntwar.com, host of the Scott Horton Show and for the past three decades, a staunch critic of US foreign policy and military interventionism. Mark Dubowitz is a chief executive of the Foundation for Defense of Democracies, host of the Iran Breakdown Podcast, and he has been a leading expert on Iran and its nuclear program for over 20 years. This is the Lex Fridman podcast. To support it, please check out our sponsors in the description and consider subscribing to this channel. If you do, I promise to work extremely hard to always bring you nuanced, long-form conversations with a very wide range of interesting people from all walks of life, and now, dear friends, here’s Scott Horton and Mark Dubowitz.
The following is a debate between Scott Horton and Mark Dubowitz on the topic of Iran and Israel. Scott Horton is author and editorial director of Ntwar.com, host of the Scott Horton Show and for the past three decades, a staunch critic of US foreign policy and military interventionism. Mark Dubowitz is a chief executive of the Foundation for Defense of Democracies, host of the Iran Breakdown Podcast, and he has been a leading expert on Iran and its nuclear program for over 20 years. This is the Lex Fridman podcast. To support it, please check out our sponsors in the description and consider subscribing to this channel. If you do, I promise to work extremely hard to always bring you nuanced, long-form conversations with a very wide range of interesting people from all walks of life, and now, dear friends, here’s Scott Horton and Mark Dubowitz.
Iran-Israel War
Lex Fridman
Gentlemen. All right, it’s great to have you here. Let’s try to have a nuanced discussion/debate and maybe even steal man-opposing perspectives as much as possible. All right, as a stands now, there’s a barely stable ceasefire between Iran and Israel. Let’s maybe rewind a little bit. Can we first lay out the context for this Iran-Israel war and try to describe the key events that happened over the past two weeks, maybe even a bit of the deep roots of the conflict?
Gentlemen. All right, it’s great to have you here. Let’s try to have a nuanced discussion/debate and maybe even steal man-opposing perspectives as much as possible. All right, as a stands now, there’s a barely stable ceasefire between Iran and Israel. Let’s maybe rewind a little bit. Can we first lay out the context for this Iran-Israel war and try to describe the key events that happened over the past two weeks, maybe even a bit of the deep roots of the conflict?
Mark Dubowitz
Sure. First of all, thanks so much for having me on. Great to be on with Scott. I know he and I don’t agree on a lot, but I certainly admire the passion and the dedication to stopping wars. So that’s something we want to talk about. So let’s talk about how we got to this war. So President Trump comes into office and immediately lays out that his Iran strategy is maximum pressure on the regime and he will not allow Iran to have a nuclear weapon, and he makes that clear. Consistently, I think made it very clear during his first term, made a clear throughout his career and thus begins this process with the Iranians, which has kind of multiple tracks, but the one that Trump sees most interested in at the time is the diplomatic track, and he makes it very clear from the beginning and a sort of Oval Office remark.
Sure. First of all, thanks so much for having me on. Great to be on with Scott. I know he and I don’t agree on a lot, but I certainly admire the passion and the dedication to stopping wars. So that’s something we want to talk about. So let’s talk about how we got to this war. So President Trump comes into office and immediately lays out that his Iran strategy is maximum pressure on the regime and he will not allow Iran to have a nuclear weapon, and he makes that clear. Consistently, I think made it very clear during his first term, made a clear throughout his career and thus begins this process with the Iranians, which has kind of multiple tracks, but the one that Trump sees most interested in at the time is the diplomatic track, and he makes it very clear from the beginning and a sort of Oval Office remark.
He says the Iranians can either blow up their nuclear program under US supervision or someone’s going to blow it up for them, and even though at the time we think Netanyahu is really trying to push the president into a military campaign, well, I’m sure we’ll talk about that throughout the podcast. The president authorizes his lead negotiator and close friend Steve Witkoff to begin outreach to the Iranians, and that’s begun the Oman round and it’s Oman round because it’s taking place in Oman with mediation efforts by the Omanis. There are five rounds of negotiations with the Iranians, and through the course of those negotiations, the US finally puts on the table an offer for Iran. We’ll talk about the details of that. The Iranians reject that offer, and we’re now into the sixth round, which is supposed to take place on a Sunday. On the Thursday before the Sunday, the Israelis strike and they go after in a rather devastating campaign over a matter of now 12 days.
They go over and go after Iran’s nuclear program, the key nuclear sites, going after weapons scientists who are responsible for building Iran’s nuclear weapons program and also go after top IRGC Islamic Revolutionary guard commanders as well as top military commanders, and yet there’s still this one site that is the most fortified site. It’s called Fordow. It’s an enrichment facility. It’s buried under a mountain, goes about 80 meters deep. It’s encased in concrete, it has advanced centrifuges and highly enriched uranium. The Israelis can do damage to it, but it’s clear it’s going to take the United States and our military power in order to severely degrade this facility, and Trump orders United States Air Force to fly B-II bombers and drop 12 massive ordnance penetrators, which are these 30,000 pound bombs on Fordow in order to, as he said, obliterate it, more realistically to severely degrade it. So that happens.
And then he offers the Iranians as he’s been offering all the way through. You have an option, you can go back to Oman, I told you Oman, and you decided to force me to go to Fordow, but now we can go back for negotiations, and he forces a ceasefire on the Iranians, gets the Israelis to agree and that’s where we are today. That’s where as you say, a tentative ceasefire that just came into effect and we’ll see now if the Iranians decide to take President Trump on his repeated offers, join him in Oman for another round of negotiations. Scott, is there some stuff you want to add to that?
Scott Horton
Sure. Well, he started with January, right? Trump’s second term here and the maximum pressure campaign essentially as should be clear to everyone. Now, all these negotiations were just a pretext for war. Trump and his entire cabinet must have known that the Ayatollah is not going to give up all enrichment. That is their latent nuclear deterrent. Their posture has been heavily implied, “Don’t attack us and we won’t make a nuke.” While America’s position was if you make a nuke, if you start to we’ll attack you. So it was the perfect standoff, but what happened was, and you might remember a few weeks ago, there was some talk about, “Well, maybe we could find a way to compromise on some enrichment. Maybe they could do a consortium with the Saudis.” And then nope, the pressure came down. No enrichment, zero enrichment, but that’s a red line.
Sure. Well, he started with January, right? Trump’s second term here and the maximum pressure campaign essentially as should be clear to everyone. Now, all these negotiations were just a pretext for war. Trump and his entire cabinet must have known that the Ayatollah is not going to give up all enrichment. That is their latent nuclear deterrent. Their posture has been heavily implied, “Don’t attack us and we won’t make a nuke.” While America’s position was if you make a nuke, if you start to we’ll attack you. So it was the perfect standoff, but what happened was, and you might remember a few weeks ago, there was some talk about, “Well, maybe we could find a way to compromise on some enrichment. Maybe they could do a consortium with the Saudis.” And then nope, the pressure came down. No enrichment, zero enrichment, but that’s a red line.
Everyone knows and even now it’s probably less likely than ever that they’re going to give up enrichment. Sure, they bombed Fordow, but they didn’t destroy every last centrifuge in that place, and the Iranians are already announcing that they’re already begun construction on another facility under a taller mountain buried even deeper, and they figured out how to enrich uranium hexafluoride gas, what, 20 years ago now, and they will always be able to, and this is the slippery slope that we’re on with these wars is in fact, I saw a friend here on TV the other day. He almost pretty much just implied there saying, “Well now Trump has to go in.” We were told it’s just Israel doing it, don’t worry, but then no Trump has to hit Fordow or else now they’ll break out toward a nuclear weapon. So in for a penny, in for a pound, in for a ton.
And now once we bomb Fordow again and Natanz again and the new facility again, then it’ll be decided that nope, as Benjamin Netanyahu said the other day, you know what would really solve this problem? If we just kill the Ayatollah, then everything will be fine. Then we’ll have a regime change and then what? Then we’ll have a civil war with Bin Ladenites again in the catbird seat, just like George Bush put them in Iraq and Barack Obama, put them in Libya and in Syria, and we’ll have Azeris and Baluchi suicide bombers and Shiite revolutionaries and whoever all vying for power in the new absolute chaos stand. If you listen to the administration and Mr. Dubowitz, they’re essentially just implying that like, oh yeah, mission accomplished. We did it. Their nuclear program’s destroyed. Now we don’t have to worry about that anymore, but that’s not true. Now there’s every reason to believe, and we don’t know for sure.
There’s every reason to believe that at least is much more likely now that the Ayatollah will change his mind about God changing his mind and we’ll say that actually maybe we do need a nuclear deterrent. That’s really what it’s been for this whole time is a bluff. We have bullets in one pocket, revolver in another. Let’s not you and me fight and escalate this thing. It’s the same position by the way as Japan and Germany and Brazil. Two of the three of those are under America’s nuclear umbrella, I admit, but still where they’ve proven they’ve mastered the fuel cycle and they can make nuclear weapons, but hey, since nobody’s directly threatening them now, why escalate things and go ahead and make atom bombs? That has been their position the whole time because after all, they could not break out and make a nuke without everyone in the world knowing about it.
And that’s why Lex, and I’m sure you could vouch for me on this, if you’ve been watching TV over the past few weeks, you’ll hear Marco Rubio and all the government officials and all the warhawks say, “Oh yes, 60%. What do you think they need with that 60%?” Implying that oh yes, see, they’re racing toward a bomb, but you see how they always just imply that? They won’t come right out and say that because it’s a ridiculous lie. They could have enriched up to 90 plus percent uranium 235 this whole time. The reason they were enriching up to 60% was in reaction to Israeli sabotage. First of all, assassinating their nuclear scientists and then their sabotage [inaudible 00:10:19]. They started enriching up to 60% just like they did in the Obama years to have a bargaining chip to negotiate away.
Under the JCPOA, they shipped out every bit of their enriched uranium to France to be turned into fuel rods and then ship back into the country to be used in their reactors, and so they’re just trying to get us back in that deal. It is an illusion and I don’t know exactly what’s in this man’s mind, but it’s just not true that they’re making nuclear weapons, and it has been a lie of Benjamin Netanyahu and his Likud party regime, and for that matter, the Khatima regime of Ehud Olmert before him that this is a threat that has to be preempted when in fact it never was anything more than a latent nuclear deterrent.
Iran’s Nuclear Program
Lex Fridman
Maybe a good question to ask here is what is the goal for the United States in Iran in relation to Iran’s nuclear program? What is the red line here? Does Iran have this need for latent nuclear deterrent and what is the thing that’s acceptable to the United States and to the rest of the world? What should be acceptable?
Maybe a good question to ask here is what is the goal for the United States in Iran in relation to Iran’s nuclear program? What is the red line here? Does Iran have this need for latent nuclear deterrent and what is the thing that’s acceptable to the United States and to the rest of the world? What should be acceptable?
Mark Dubowitz
Yeah, so there was a lot to unpack there. So let’s sort of just back up a little bit. Let’s talk about first of all, the regime itself. Islamic Republic of Iran came into power in 1979. It has been declared a leading state sponsor of terrorism by multiple administrations dating back to the Clinton administration, by Obama, by Biden, by Trump and it is a regime that has killed and maimed thousands of Americans, not to mention obviously hundreds of thousands of Middle Easterners. It is a regime that has lied about its nuclear program and never actually disclosed its nuclear sites. All these sites were discovered by Iranian opposition groups, by western intelligence agencies, and the International Atomic Energy Agency, which is the UN agency responsible for preventing proliferation has come out again and again over many years in very detailed reports describing Iran’s nuclear weapons program.
Yeah, so there was a lot to unpack there. So let’s sort of just back up a little bit. Let’s talk about first of all, the regime itself. Islamic Republic of Iran came into power in 1979. It has been declared a leading state sponsor of terrorism by multiple administrations dating back to the Clinton administration, by Obama, by Biden, by Trump and it is a regime that has killed and maimed thousands of Americans, not to mention obviously hundreds of thousands of Middle Easterners. It is a regime that has lied about its nuclear program and never actually disclosed its nuclear sites. All these sites were discovered by Iranian opposition groups, by western intelligence agencies, and the International Atomic Energy Agency, which is the UN agency responsible for preventing proliferation has come out again and again over many years in very detailed reports describing Iran’s nuclear weapons program.
There have been multiple attempts at diplomacy with Iran. I’m sure we’re going to talk about, it’s mentioned the JCPOA, so we should certainly talk about the JCPOA, which was the 2015 deal that Barack Obama reached with Iran, but multiple attempts to actually get the Iranians to negotiate away their nuclear weapons program. I mean it’s worth mentioning that if Iran wanted to have civilian nuclear energy. There are 23 countries in the world that have it, but they don’t have enrichment and they don’t have reprocessing. We sign these deals called the gold standard with the South Koreans, with the Emiratis, with others, and we say if you want civilian energy, you can have power plants, you can buy your fuel rods from abroad, but there’s no reason to have enrichment or plutonium reprocessing because those are the key capabilities you need to develop nuclear weapons. Now, the five countries that have those capabilities and don’t have nuclear weapons are Argentina, Brazil, Holland, Germany, and Japan.
And I think it’s the view of many administrations over many years, including many European leaders, that the Islamic Republic of Iran is very different from those aforementioned countries because that it has been dedicated to terrorism, it’s been killing Americans and other Westerners and other Middle Easterners, and it is a dangerous regime. You don’t want to have that dangerous regime retaining the key capabilities and needs to develop nuclear weapons, but I want to get back more to the present. I mentioned this was around negotiations at Oman. Scott’s saying that President Trump had said, “Here’s the offer, take it to leave it, zero enrichment full dismantlement.” Well, in fact, that wasn’t the offer that was presented to the Iranians at Oman. The offer was a one-page offer and it said you can temporarily enrich above ground. You’ve got to render your below ground facilities, quote, non-operational and then at some time in the future, three, four years as Scott said, there’ll be a consortium that’ll be built not on Iranian territory.
It’ll be a partnership with the Saudis and the Emiratis. It’ll be under IAEA supervision, and that enrichment facility will create fuel rods for your nuclear reactors. So that was the offer presented to Iran, and that offer would come with significant sanctions relief, billions of dollars that would go to the regime. Obviously the economy there has been suffering. The regime has not had the resources that it’s had in the past to fund what I call its axis of misery, its proxy terror armies around the world, and it was a good offer and I was shocked that Khamenei rejected it. He did reject it and I think he rejected it because I think he believed that he could continue to do to President Trump what he had done to President Obama, which is just continue to squeeze and squeeze the Americans at the table in order to ensure that he could keep all these nuclear facilities, all these nuclear capabilities so that at a time of his choosing when President Trump is gone, he can develop nuclear weapons.
Now, it is a bit interesting to say that Iran has no intention to develop nuclear weapons. Let’s examine the nuclear program and ask, “Does this sound like a regime that’s not interested in building nuclear weapons?” So they built deeply buried underground enrichment facilities that they hid from the international community and they didn’t disclose. They had an active nuclear warhead program called the AMAD, which ended in 2003 formally when the United States invaded Iraq, and we know that because not only has that been detailed by the IAEA, but actually Mossad and a daring operation in Tehran took out a nuclear archive and brought it back to the west, and then the IAEA, the United States, and the intelligence communities went after this detailed archive, went into it and discovered that this Supreme leader, Ali Khamenei had an active program to build five atomic warheads and was a very detailed program with blueprints and designs, all of which was designed under AMAD to build a nuclear weapons program. So again, it’s interesting to say that he doesn’t have the intention to build nuclear weapons when he actually had an active nuclear weapons program, and we can talk about what happened to that program after 2003, and there’s a lot of interesting details. So when you combine the fact that he has an active nuclear weapons program, he has sites that are buried deep underground. He has weapons scientists who come out of the AMAD program and continue to work on the initial metallurgy work and computer modeling designed to actually begin that process of building a warhead, and all of this has been hidden from the international community. He has spent estimates of a half a trillion dollars on his nuclear program in direct costs and in sanctions costs, and one has to ask and I think it’s an interesting question to compare the UAE and Iran.
The UAE signed the gold standard. They said, “We’ll have no enrichment capability or reprocessing.” They spent about $20 billion on that and it supplies 25% of their electrical generation. Khamenei spent a half a trillion dollars, and that program supplies maybe 3% of their electrical needs. In fact, they have a reactor that they bought from the Russians called Boucher, and that reactor, it’s exactly what you’d want in a proliferation proof reactor. They buy fuel rods from the Russians, they use it and they send the spent fuel back to Russia so it cannot be reprocessed in the plutonium. So I just think it’s important for your listeners to understand just some of the technical nuclear history here in order to unpack this question of did Khamenei want nuclear weapons? What was his goal here? And then we can talk about was this the right operation for the United States to order the B-II bombers to strike these facilities, again was a limited operation as President Trump has said, and in order to drive the Iranians back to the negotiating table and finally do the deal that President Trump has asked them to do since he came into office in January.
Lex Fridman
Yeah, that is one of the fascinating questions, whether this Operation Midnight Hammer increase or decreased the chance that the Iran will develop a nuclear weapon.
Yeah, that is one of the fascinating questions, whether this Operation Midnight Hammer increase or decreased the chance that the Iran will develop a nuclear weapon.
Scott Horton
Before you ask any more questions, I have to refute virtually everything he just said, which is completely false.
Before you ask any more questions, I have to refute virtually everything he just said, which is completely false.
Mark Dubowitz
I mean really everything, there was not one thing I said that was true. Just one thing.
I mean really everything, there was not one thing I said that was true. Just one thing.
Scott Horton
I mean Iran is a nation over there somewhere. You got that part right.
I mean Iran is a nation over there somewhere. You got that part right.
Mark Dubowitz
All right, 22 years of working on Iran and I got that right.
All right, 22 years of working on Iran and I got that right.
Lex Fridman
But do you know the population of Iran?
But do you know the population of Iran?
Mark Dubowitz
92 million.
92 million.
Lex Fridman
Okay.
Okay.
Scott Horton
So first of all, they were trying to buy a light water reactor from the Europeans or the Chinese in the 1990s, and Bill Clinton wouldn’t let them and put tremendous pressure on China to prevent them from selling them a light water reactor, a turnkey reactor that produces waste that’s so polluted with impurities that you can’t make nuclear weapons fuel out of it. By the way, they never have to this day had a reprocessing facility for reprocessing plutonium. Even their current plutonium waste from their heavy water reactor at Boucher to make weapons fuel out of that. They have no plutonium route to the bomb under the JCPOA.
So first of all, they were trying to buy a light water reactor from the Europeans or the Chinese in the 1990s, and Bill Clinton wouldn’t let them and put tremendous pressure on China to prevent them from selling them a light water reactor, a turnkey reactor that produces waste that’s so polluted with impurities that you can’t make nuclear weapons fuel out of it. By the way, they never have to this day had a reprocessing facility for reprocessing plutonium. Even their current plutonium waste from their heavy water reactor at Boucher to make weapons fuel out of that. They have no plutonium route to the bomb under the JCPOA.
Mark Dubowitz
At Iraq, not Boucher. There’s a difference.
At Iraq, not Boucher. There’s a difference.
Scott Horton
Iraq is where they pour concrete into the reactor and shut it down.
Iraq is where they pour concrete into the reactor and shut it down.
Mark Dubowitz
And the reason they pour concrete-
And the reason they pour concrete-
Scott Horton
Under the JCPOA.
Under the JCPOA.
Mark Dubowitz
Not they, but the Obama administration, he’s right, under the JCPOA poured concrete into the Kalindria in order to prevent them from using that reactor to reprocess plutonium. So there’s a distinction between Iraq and Boucher. Scott’s exactly right. Boucher is a heavy water reactor provided by the Russians as I described for the generation of electricity. Its proliferation proof. Iraq is the opposite. It’s a heavy water reactor that was built for a plutonium pathway to nuclear weapons, which is exactly why under the JCPOA, they literally had to pour concrete into the middle of it to prevent it from reprocessing plutonium.
Not they, but the Obama administration, he’s right, under the JCPOA poured concrete into the Kalindria in order to prevent them from using that reactor to reprocess plutonium. So there’s a distinction between Iraq and Boucher. Scott’s exactly right. Boucher is a heavy water reactor provided by the Russians as I described for the generation of electricity. Its proliferation proof. Iraq is the opposite. It’s a heavy water reactor that was built for a plutonium pathway to nuclear weapons, which is exactly why under the JCPOA, they literally had to pour concrete into the middle of it to prevent it from reprocessing plutonium.
Scott Horton
I think we’re going to need a scientist to come in here and split the difference or maybe we need to go and look up some IAEA documents because I don’t believe that Iraq ever had a reprocessing facility for their plutonium waste and the deal under the JCPOA, the Russians would come and get all their plutonium waste, which the waste comes out all polluted and not useful. You need the reprocessing facility to get all of the impurities out.
I think we’re going to need a scientist to come in here and split the difference or maybe we need to go and look up some IAEA documents because I don’t believe that Iraq ever had a reprocessing facility for their plutonium waste and the deal under the JCPOA, the Russians would come and get all their plutonium waste, which the waste comes out all polluted and not useful. You need the reprocessing facility to get all of the impurities out.
Mark Dubowitz
Just to clarify-
Just to clarify-
Scott Horton
It could be that I’m wrong about that, but I don’t believe that they ever had a reprocessing facility at Iraq that they could use to remove all those impurities and then have weapons-grade plutonium fuel as the North Koreans do.
It could be that I’m wrong about that, but I don’t believe that they ever had a reprocessing facility at Iraq that they could use to remove all those impurities and then have weapons-grade plutonium fuel as the North Koreans do.
Mark Dubowitz
So the Obama administration was very clear under the JCPOA, we are going to pour concrete into the Iraq facility as Scott acknowledged because we are concerned that Iraq can be used for reprocessing plutonium, for plutonium pathway to a nuclear weapon.
So the Obama administration was very clear under the JCPOA, we are going to pour concrete into the Iraq facility as Scott acknowledged because we are concerned that Iraq can be used for reprocessing plutonium, for plutonium pathway to a nuclear weapon.
Lex Fridman
Can be used, but we don’t know if it was used.
Can be used, but we don’t know if it was used.
Scott Horton
Oh, we know it never was. There never was any reprocessing of weapons fuel there.
Oh, we know it never was. There never was any reprocessing of weapons fuel there.
Lex Fridman
But there was concrete poured.
But there was concrete poured.
Scott Horton
There’s no indication
There’s no indication
Mark Dubowitz
For your viewers who are interested and not to plug my own podcast, Lex so I apologize.
For your viewers who are interested and not to plug my own podcast, Lex so I apologize.
Lex Fridman
It is a very good podcast.
It is a very good podcast.
Mark Dubowitz
I just recently had David Albright on my podcast who is actually a physicist and a weapons inspector and goes into a lot of detail about the Iranian nuclear program. Please listen to the podcast.
I just recently had David Albright on my podcast who is actually a physicist and a weapons inspector and goes into a lot of detail about the Iranian nuclear program. Please listen to the podcast.
Lex Fridman
Iran Breakdown by the way is the name of the podcast.
Iran Breakdown by the way is the name of the podcast.
Mark Dubowitz
And David’s the president of the Institute for Science International Security and by the way, spent decades on this and to his credit, he was one of the deep skeptics of the Bush administration’s rush to war with Iraq.
And David’s the president of the Institute for Science International Security and by the way, spent decades on this and to his credit, he was one of the deep skeptics of the Bush administration’s rush to war with Iraq.
Scott Horton
That’s not true. He vouched for claims that there were chemical weapons in Iraq and later said he was sorry for it.
That’s not true. He vouched for claims that there were chemical weapons in Iraq and later said he was sorry for it.
Mark Dubowitz
Again, I mentioned the Bush administration’s rush to war based on their claims that Saddam was building nuclear weapons.
Again, I mentioned the Bush administration’s rush to war based on their claims that Saddam was building nuclear weapons.
Scott Horton
He did debunk the aluminum tubes though.
He did debunk the aluminum tubes though.
Mark Dubowitz
He debunked it and it was a deep skeptic again of the rush to war in Iraq. The argument today, Lex, which I think is the more interesting argument, because there are very few people left today who don’t believe that the Iranians were building the nuclear weapons capability that gave them the option to build nuclear weapons.
He debunked it and it was a deep skeptic again of the rush to war in Iraq. The argument today, Lex, which I think is the more interesting argument, because there are very few people left today who don’t believe that the Iranians were building the nuclear weapons capability that gave them the option to build nuclear weapons.
Scott Horton
I already said that.
I already said that.
Mark Dubowitz
We can debate whether they had decided to, and I’m interested to hear Scott’s opinion on this, but the recent intelligence that has come out that the Iranian nuclear weapons scientists have begun preliminary work on building a warhead.
We can debate whether they had decided to, and I’m interested to hear Scott’s opinion on this, but the recent intelligence that has come out that the Iranian nuclear weapons scientists have begun preliminary work on building a warhead.
Scott Horton
Came out from where? This intelligence that came out, who put that? Israeli claims. Not verified by the US and the Wall Street Journal anywhere, right? Let’s talk about all of my list of refutations of all your false claims from 10 years ago.
Came out from where? This intelligence that came out, who put that? Israeli claims. Not verified by the US and the Wall Street Journal anywhere, right? Let’s talk about all of my list of refutations of all your false claims from 10 years ago.
Mark Dubowitz
The Wall Street Journal did verify.
The Wall Street Journal did verify.
Scott Horton
That’s a lot of [inaudible 00:23:08] to refute.
That’s a lot of [inaudible 00:23:08] to refute.
Lex Fridman
One at a time.
One at a time.
Mark Dubowitz
Lawrence Norman actually wrote a piece and this was during the Biden administration because the Biden DNI had actually come out and for the first time in their annual threat assessment had removed a line that said Iran is not currently working on developing any capabilities that would put it in a position to actually deliver a nuclear warhead, and what became the Norman piece in the Wall Street Journal was that there actually was initial work done on metallurgy and on computer modeling, and so those actually were defined terms in Section T of the 2015 JCPOA, which defined weaponization in that section, and metallurgy and computer modeling were some of the initial steps so that the DNI was very concerned under Biden that these initial steps meant that either Khamenei had given the green lights or nuclear weapons scientists in order to get ahead of the boss so they could be in a position if he decided to move forward on this, were in a position and their timelines were therefore expedited.
Lawrence Norman actually wrote a piece and this was during the Biden administration because the Biden DNI had actually come out and for the first time in their annual threat assessment had removed a line that said Iran is not currently working on developing any capabilities that would put it in a position to actually deliver a nuclear warhead, and what became the Norman piece in the Wall Street Journal was that there actually was initial work done on metallurgy and on computer modeling, and so those actually were defined terms in Section T of the 2015 JCPOA, which defined weaponization in that section, and metallurgy and computer modeling were some of the initial steps so that the DNI was very concerned under Biden that these initial steps meant that either Khamenei had given the green lights or nuclear weapons scientists in order to get ahead of the boss so they could be in a position if he decided to move forward on this, were in a position and their timelines were therefore expedited.
So it’s interesting, I mean again, you’ve got the DNI under Biden, you’ve got the CIA director, John Radcliffe, you’ve got Israeli intelligence, you’ve got the Wall Street Journal, and you’ve got the IAEA asking questions of Iran on its past weaponization activities. Why are you denying us?
Scott Horton
Who’s the dog that didn’t bark there? The current director of National Intelligence who issued her threat assessment, Trump’s director of National Intelligence, Tulsi Gabbard who issued her threat assessment in February that repeated the exact same language that from the National Intelligence estimate of 2007, and that the CIA and the NIE, the National Intelligence Council have reaffirmed repeatedly ever since then, which is that supreme leader has not decided to pursue nuclear weapons. He has not made the political decision to pursue nuclear weapons. She testified in fact under oath in front of the senate in March and then according to CNN and the New York Times, there was a brand new assessment that was put together the week before the attack was launched reaffirming the same thing and at least in history, if you read it in Haaretz, Massad agreed with the CIA.
Who’s the dog that didn’t bark there? The current director of National Intelligence who issued her threat assessment, Trump’s director of National Intelligence, Tulsi Gabbard who issued her threat assessment in February that repeated the exact same language that from the National Intelligence estimate of 2007, and that the CIA and the NIE, the National Intelligence Council have reaffirmed repeatedly ever since then, which is that supreme leader has not decided to pursue nuclear weapons. He has not made the political decision to pursue nuclear weapons. She testified in fact under oath in front of the senate in March and then according to CNN and the New York Times, there was a brand new assessment that was put together the week before the attack was launched reaffirming the same thing and at least in history, if you read it in Haaretz, Massad agreed with the CIA.
Mark Dubowitz
I’d like to just sort of quote CIA director John Radcliffe because Scott brought up the CIA and the intelligence committee. I think Radcliffe had a good way of looking at this and that he said is when you’re in the 99 yard line as a football team, you have the intention of score a goal, and what he was actually pointing to is let’s not talk about this debate about whether Khamenei had given the order or not given the order, because Khamenei knows that if he gives an order, the US and Israeli intelligence community will pick up on that order and that will be the trigger for strikes. What Radcliffe is saying is that Khamenei had built the nuclear weapons capability. He’s at the 99 yard line, and both the CIA and European leaders, the European Intelligence Committee has said for yours that if Iran has that capability and they’re on the 99 yard line, at that point, it’s going to be too late to stop them. Once that decision is made to assemble the final warhead, which by the way is the final piece of what you need for a deliverable nuclear weapon.
I’d like to just sort of quote CIA director John Radcliffe because Scott brought up the CIA and the intelligence committee. I think Radcliffe had a good way of looking at this and that he said is when you’re in the 99 yard line as a football team, you have the intention of score a goal, and what he was actually pointing to is let’s not talk about this debate about whether Khamenei had given the order or not given the order, because Khamenei knows that if he gives an order, the US and Israeli intelligence community will pick up on that order and that will be the trigger for strikes. What Radcliffe is saying is that Khamenei had built the nuclear weapons capability. He’s at the 99 yard line, and both the CIA and European leaders, the European Intelligence Committee has said for yours that if Iran has that capability and they’re on the 99 yard line, at that point, it’s going to be too late to stop them. Once that decision is made to assemble the final warhead, which by the way is the final piece of what you need for a deliverable nuclear weapon.
Scott Horton
That’s not true at all, right? They have to resort to a crude analogy about football yard lines because they can’t say the truth, which is that they had zero weapons grade uranium, they were not producing it. They were trying to get the United States back in the deal that they are still officially within the JCPOA with the rest of the UN Security Council wherein they shipped all of their enriched uranium stockpile out of the country to France to be transferred to fuel rods. Their insistence was on their continued ability to enrich uranium, and so this goes to one of the things that he at least sort of brought up that deserves addressing. When Trump came into power in 2017, he decided on this Israeli influence maximum pressure campaign, and he said the JCPOA was the worst deal in the history of any time any two men ever shook hands and all these kinds of things in his hyperbolic way, which of course made it very difficult for him to figure out a way to stay in the thing or to compromise along its lines.
That’s not true at all, right? They have to resort to a crude analogy about football yard lines because they can’t say the truth, which is that they had zero weapons grade uranium, they were not producing it. They were trying to get the United States back in the deal that they are still officially within the JCPOA with the rest of the UN Security Council wherein they shipped all of their enriched uranium stockpile out of the country to France to be transferred to fuel rods. Their insistence was on their continued ability to enrich uranium, and so this goes to one of the things that he at least sort of brought up that deserves addressing. When Trump came into power in 2017, he decided on this Israeli influence maximum pressure campaign, and he said the JCPOA was the worst deal in the history of any time any two men ever shook hands and all these kinds of things in his hyperbolic way, which of course made it very difficult for him to figure out a way to stay in the thing or to compromise along its lines.
But the fact of the matter is if he had just played it straight and said, “Listen, Ayatollah, we don’t have to be friends, but we do have a deal here, which my predecessor struck with you, but I don’t like these sunset provisions and I want to send my guys over there and see if we can figure out a way to convince you that we really wish you’d shut down and them all together.” Or this or that or the other thing, and tried to approach them in good faith. We talk about yard lines and things. We had a JCPOA, okay? So toward peace, we were past the 50 yard line. Donald Trump could have gone to Tehran and shook hands with the Ayatollah as Dick Cheney complained that we had cold relations with Iran back in 1998 when he was the head of Halliburton and said, “We can do business with these guys.”
Donald Trump could have gone right over there and done business, and instead he gave into Netanyahu’s lies in this ridiculous hoax that they had uncovered all these Iranian nuclear documents, which he pretends is legit, where all they did was recycle the fake Israeli forged smoking laptop of 2005, which they lied and pretended was the laptop of an Iranian scientist that was smuggled out of Iran by his wife and had all this proof of a secret Iranian nuclear weapons program on it, but every bit of that was refuted, including the thing about the warhead he said was refuted by David Albright and his friend David Sanger in the New York Times, that all those sketches of the warhead for the missile were wrong because when Mossad forged the documents, they were making a good educated guess, but they didn’t know that Iran had completely redesigned the nose cone of their mid-range missiles and had an entirely different nose cone that would require an entirely different warhead than that described in the documents.
And why would they have been designing a warhead to fit in a nose cone that they were abandoning? And so that was refuted. David Albright completely discredited your claims there pal, and then they later admitted that it was a CIA laptop. There was no laptop and they later admitted Ali Hainan admitted who was a very hawkish, not director, but a high level executive at the International Atomic Energy Agency, admitted that that intelligence was brought into the stream by the Mujahideen-e-Khalq communist terrorist cult that used to work for the Ayatollah during the revolution, then turned on him, and he turned on them and kicked them out. Then they went to work for Saddam Hussein where they helped crush the Shiite and Kurdish insurrection of 1991, and then they became America, Donald Rumsfeld’s and Ariel Sharon’s sock puppets and later Ehud Olmert’s sock puppets when the United States invaded Iraq and took possession of them.
They’re now under American protection in Albania, and these are the same kooks who just a few weeks ago you might remember saying, “Look, new satellite pictures of a whole new nuclear facility in Iran.” Isn’t it funny how no one ever brought that up again? Didn’t bomb it. It was nothing. It was fake. Just like before when they said, “Hey, look, here’s a picture of a vault door.” And behind that is where the secret nuclear weapons program is except turned out that vault door was a stock photo from a vault company. It meant nothing and they had repeatedly made claims that were totally refuted, just like I’m about to refute his claim, that they ever were the ones who revealed for example, Natanz. He was implying that Natanz and Kham were both buried and hidden until revealed I think you said by dissident groups. That is the MEK sock puppets of the Israelis, but it was your friend David Albright, not the Israeli Mossad through the MEK who revealed Natanz facility. Ask him, he’ll fist fight you over it. He claims credit he was first and said, “This is a facility.” However…
Scott Horton
Claims credit he was first and said this is a facility. However, they were not in violation of their safeguards agreement with the IAEA. They were still six months away from introducing any nuclear material to that facility. When it was revealed, they weren’t in violation of anything. And then on com we had a huge fight about this at the time. The party line came down from all the government officials in the media that they had just exposed the facility there. Com is Fordo. Same thing. When in fact that wasn’t true. The Iranians had announced to the IAEA that we had built a new facility here, and we are going to introduce nuclear material into it within six months. Here’s your official notification. And then a few days later, they just pretended to expose it, when it was the Iranians themselves who had admitted to it in going along with their obligations under their safeguards agreement.
Claims credit he was first and said this is a facility. However, they were not in violation of their safeguards agreement with the IAEA. They were still six months away from introducing any nuclear material to that facility. When it was revealed, they weren’t in violation of anything. And then on com we had a huge fight about this at the time. The party line came down from all the government officials in the media that they had just exposed the facility there. Com is Fordo. Same thing. When in fact that wasn’t true. The Iranians had announced to the IAEA that we had built a new facility here, and we are going to introduce nuclear material into it within six months. Here’s your official notification. And then a few days later, they just pretended to expose it, when it was the Iranians themselves who had admitted to it in going along with their obligations under their safeguards agreement.
It’s just completely wrong. Why do they bury them? They buried them for protection because clearly the Israelis have indicated since the 1990s that they consider any nuclear program in Iran to be the same thing as an advanced nuclear weapons program. You’re hearing that today. For them to have a nuclear facility at all is equivalent to them going ahead and breaking out and making a nuclear weapon, and so of course they know that they have to have it buried to protect it from Israel. That doesn’t mean that they are trying to get nukes.
It does mean, as I already said, that they wanted to prove to the world that they know how to enrich uranium and that they have facilities buried deeply enough where, if we attack them, that would incentivize them to making nukes, and then we might be unable to stop them without going all the way toward a regime change, which they’re bluffing, basically betting, that we won’t go that far, considering how gigantic their country is and how mountainous and populous it is compared to Iraq next door.
Now, here’s some more things that he said that weren’t true. He said Iran has been killing Americans all this time. Well, that’s almost always a reference to Beirut 1983, which you can read in the book By Way of Deception, by Victor Ostrovsky, the former Mossad officer, that the Israelis knew that they were building that truck bomb to bomb the Marines with and withheld that information from the United States and said, “That’s what they get for sticking their big noses in.” And that is in the book, By Way of Deception by Victor Ostrovsky. And by the way, the Israelis were friends with them, with Iran, at the time all through the 1980s. And it was just a couple of years later when Ronald Reagan sold Iran missiles and using the Israelis as cutouts to do so when he switched sides temporarily in the Iran-Iraq war.
And that was in 1983. If Ronald Reagan can sell a missiles a year or two years after that, three years after that, then surely the United States and the Ayatollah can bury the hatchet from that. And no one’s ever even, I don’t believe, ever really proven that Tehran ordered that. It was a Shiite militia backed by Iran, that sort of proto-Hezbollah, that did that attack that killed those Marines. And if there’s some responsibility for it, then damn them. If there’s direct responsibility for that, not just their support for the group, then damn them for that, but that’s still no reason in the world to say that we can’t get along with them now when that was in the same year Return of the Jedi came out.
And then the other one, and this is always referred to, you’ll see this on TV News today. Anyone watching this, turn on TV News, and you’ll hear them say, “Iran killed 600 Americans in Iraq War II,” but that’s a lie. There was a gigantic propaganda campaign by Dick Cheney and his co-conspirators, David Petraeus and Michael Gordon of the New York Times, now at the Wall Street Journal, where they lied and lied like the devil for about five, six months in early 2007 that every time a Shiite set off a roadside bomb, these new improved copper cord enhanced … They’re called EFPs, explosively formed penetrators.
Now, anytime that happened, Iran did it, which is what George Bush called short-handing it. In other words, just implying the lie. What they’re saying is Iran backed Muqtada al-Sadr, and America attacked Muqtada al-Sadr, who actually they were fighting the whole war for him. He remains a powerful kingmaker in that country to this day. He’s part of the United Iraqi Alliance. And in fact, as long as we’re taking a long form here, he was the least Iran-tied of the three major factions in the United Iraqi Alliance in Iraq War II.
The other two major factions were Dawa and the Supreme Islamic Council, and they had been living in Iran for the last 20 years. They’re the ones who came and took over Baghdad. Muqtada al-Sadr was a Shiite and close to Iran, but he was also an Iraqi nationalist. And at times, he allied with the Sunnis and tried to limit American and Iranian influence in the country. Was more of an Arab and an Iraqi nationalist. And the Americans decided they hated him the most, not because he was the most Iran-tied, but because he was willing to tell us and them two to get the hell out. And America was betting that, if we backed the same parties that Iran backed in Iraq War II, that they would eventually end up needing our money and guns more than they would need their Iranian friends and co-religionists and sponsors next door, which of course did not work out. America’s had minimal influence in supermajority Shiite Iraq ever since the end of Iraq War II. And we can get back later in the show to how Israel helped lie us into that horrific war as well.
But the fact of the matter is it was not Iranians setting off those bombs, and it was not even Iranians making those bombs. And I show in my book, Enough Already, I have a solid dozen sources.
Lex Fridman
Enough Already.
Enough Already.
Scott Horton
Thank you. I have a solid dozen sources including Michael Gordon’s own colleague, Alissa Rubin at the New York Times, and many others where they found these bomb factories in Shiite Iraq. They were being made by Shiite Arab Iraqis. When David Petraeus was going to have a big press conference, and they laid out all the components, all the reporters gathered around, and they started noticing that the components said “Made in UAE. Made in Haditha.” That is Iraq. In other words, there was no evidence whatsoever that these came from Iran. And then they called off the press conference. And Stephen Hadley, George Bush’s second national security advisor, admitted that we didn’t have the evidence that we needed to present that. And I also quote two, one Marine and one high-level Army intelligence officer in there, who were deeply involved in Iraq war reconfirming that there was never any evidence that these bombs were coming across from Iran or especially that then, even if they were, that that was at the direction of the Quds Force or the Ayatollah.
Thank you. I have a solid dozen sources including Michael Gordon’s own colleague, Alissa Rubin at the New York Times, and many others where they found these bomb factories in Shiite Iraq. They were being made by Shiite Arab Iraqis. When David Petraeus was going to have a big press conference, and they laid out all the components, all the reporters gathered around, and they started noticing that the components said “Made in UAE. Made in Haditha.” That is Iraq. In other words, there was no evidence whatsoever that these came from Iran. And then they called off the press conference. And Stephen Hadley, George Bush’s second national security advisor, admitted that we didn’t have the evidence that we needed to present that. And I also quote two, one Marine and one high-level Army intelligence officer in there, who were deeply involved in Iraq war reconfirming that there was never any evidence that these bombs were coming across from Iran or especially that then, even if they were, that that was at the direction of the Quds Force or the Ayatollah.
This was all just a propaganda campaign because Dick Cheney and David Petraeus were trying to give George Bush a reason to hit IRGC bases and start the war in 2007. And this sounds crazy, but there’s four major confirming sources for it. Dick Cheney’s national security advisor, David Wurmser, who was the author of the Clean Break Strategy, which we’re going to talk about today. David Wurmser in 2007 was saying, “We want to work with the Israelis to start the war with Iran to force George Bush, to do an end run around George Bush and force him into the war.” And that was reported originally by Steven Clemons in The Washington Note, but it was later confirmed in the New York Times and by The Washington Post reporter, Barton Gellman in his book, Angler, on Dick Cheney, that there was this huge … This was the end that they were going for was they were trying so hard to force a war in 2007. And it was the commander of CENTCOM, Admiral Fallon, who said, “Over my dead body. We are not doing this.”
And then a few months later, the National Intelligence Council put out their NIE saying that there is no nuclear weapons program at all. And W. Bush complained in his memoir that in his story it’s the Saudi king, his Royal Highness Abdullah rather than Ehud Olmert, but he’s saying, ” I’m sorry, your Highness Majesty. I can’t attack Iran’s nuclear program because my own intelligence agency says they don’t have a military program. How am I supposed to start a war with them when my own intelligence agencies say that?” This is what Donald Trump just did started anyway. Had his man Rubio say, “Well, screw the intelligence. I don’t care what it says. We can just do this if we want to.”
Lex Fridman
First, let me say on the cover of Enough Already, “Devastating,” Daniel Ellsberg, “Outstanding,” Daniel L. Davis, “Essential,” Ron Paul. You are respected by a very large number of people. You have decades of experience. And the same thing with Mark. Extremely respected by a very large number of people. Experts. There’s a lot of disagreements here, and we’re going to unfortunately leave a lot of the disagreements on the table for the aforementioned nuclear scientist to deconstruct later. Let’s not try to … Every single claim does not have to be perfectly refuted. Let’s just leave it on the table, the statements as they stand, and let’s try to also find things we kind of agree on and try … I know this might be difficult, but to steelman the other side. That’s the thing I would love to ask you.
First, let me say on the cover of Enough Already, “Devastating,” Daniel Ellsberg, “Outstanding,” Daniel L. Davis, “Essential,” Ron Paul. You are respected by a very large number of people. You have decades of experience. And the same thing with Mark. Extremely respected by a very large number of people. Experts. There’s a lot of disagreements here, and we’re going to unfortunately leave a lot of the disagreements on the table for the aforementioned nuclear scientist to deconstruct later. Let’s not try to … Every single claim does not have to be perfectly refuted. Let’s just leave it on the table, the statements as they stand, and let’s try to also find things we kind of agree on and try … I know this might be difficult, but to steelman the other side. That’s the thing I would love to ask you.
Maybe give Mark a chance to speak a little bit but to try to … For both of you to try to steelman on the other side. People who are concerned about Iran developing a nuclear program … Can you steelman that case? And the same. The people who are concerned-
Scott Horton
I think that, in my opening statement, quite frankly, I don’t carry any brief for the Ayatollah. I’m a Texan. I don’t give a damn about what some Shiite theocrat says about nothing, right? My interest is the people of this country and its future and what’s true. And so I don’t mind telling you. Even though the Iranians never said, “We’re building a latent nuclear weapons capability,” that’s clearly what they’re doing is showing that they can make a nuke, so don’t make me make a nuke. That has been their position. Their position has not been, “I’m making a nuke so I can wipe Israel off the map.” Their position has been, “Look, if you guys don’t attack us, we could just keep this civilian program the way it is.” And again, there’s always the implication that they’re just building up this uranium stockpile, but no, they’re not.
I think that, in my opening statement, quite frankly, I don’t carry any brief for the Ayatollah. I’m a Texan. I don’t give a damn about what some Shiite theocrat says about nothing, right? My interest is the people of this country and its future and what’s true. And so I don’t mind telling you. Even though the Iranians never said, “We’re building a latent nuclear weapons capability,” that’s clearly what they’re doing is showing that they can make a nuke, so don’t make me make a nuke. That has been their position. Their position has not been, “I’m making a nuke so I can wipe Israel off the map.” Their position has been, “Look, if you guys don’t attack us, we could just keep this civilian program the way it is.” And again, there’s always the implication that they’re just building up this uranium stockpile, but no, they’re not.
That’s in reaction to, one, Donald Trump leaving the deal in 2018, two, the assassination in December of 2020 of the Iranian nuclear scientist, Fakhrizadeh, or however you say that, and then in April of ’21, the sabotage at Natanz. And there’s a Reuters story that says, right after they sabotage Natanz, that’s when the Ayatollah decided let’s enrich up to 60%, which why stop 30% short of 90% 235? It’s because they’re not even making a threat. They’re making the most latent a threat. A bargaining chip to negotiate away. They’re trying to put pressure on the United States to come back to the table. That’s not the same as racing to the bomb. That’s why Marco Rubio says, “Never mind the intelligence,” because the intelligence says what I just said.
Lex Fridman
Point made. Let’s try, if possible, to keep it to a minute and two of back and forth-
Point made. Let’s try, if possible, to keep it to a minute and two of back and forth-
Scott Horton
I said the problem is we’re talking about nuclear stuff, which is all very complicated, and most people don’t know much about it, which is what the war party is relying on, that people just hear nuclear, afraid, and mushroom cloud and give the benefit of the doubt to the hawks. And so we got to get into the details of this stuff.
I said the problem is we’re talking about nuclear stuff, which is all very complicated, and most people don’t know much about it, which is what the war party is relying on, that people just hear nuclear, afraid, and mushroom cloud and give the benefit of the doubt to the hawks. And so we got to get into the details of this stuff.
Lex Fridman
Details 100%, but I like the tension between two people with different perspectives exploring those details. And the more we can go back and forth, the better. And there’s a lot of disagreement on the table. I personally enjoy learning from the disagreement, I think, a lot-
Details 100%, but I like the tension between two people with different perspectives exploring those details. And the more we can go back and forth, the better. And there’s a lot of disagreement on the table. I personally enjoy learning from the disagreement, I think, a lot-
Scott Horton
That was a very long list of claims that he made, though, where I felt I had to go down the list as much as I could because there was a lot-
That was a very long list of claims that he made, though, where I felt I had to go down the list as much as I could because there was a lot-
Lex Fridman
I think you addressed maybe one or two claims, and it took 15 minutes. That’s why I’m just commenting on-
I think you addressed maybe one or two claims, and it took 15 minutes. That’s why I’m just commenting on-
Scott Horton
That’s fair.
That’s fair.
Lex Fridman
… let’s do one at a time. I like the tension of the debate of back and forth. That’s all. Mark, do you want to comment on stuff a little bit here? Pick whichever topic you want to go with here.
… let’s do one at a time. I like the tension of the debate of back and forth. That’s all. Mark, do you want to comment on stuff a little bit here? Pick whichever topic you want to go with here.
Nuclear weapons and uranium
Mark Dubowitz
There’s a lot there. Just couple of things, I think, that are worth your viewers knowing. Because Scott’s right. I mean, the nuclear physics is complicated, and it’s also important. The Iranians have assembled about … They say about 15 to 17 bombs worth of 60% enriched uranium. And I think it’s always important for your listeners to understand, what does this all mean? Enriched to 3.67%, to 20%, to 60%, and then to 90% weapons-grade uranium. What does this actual process mean?
There’s a lot there. Just couple of things, I think, that are worth your viewers knowing. Because Scott’s right. I mean, the nuclear physics is complicated, and it’s also important. The Iranians have assembled about … They say about 15 to 17 bombs worth of 60% enriched uranium. And I think it’s always important for your listeners to understand, what does this all mean? Enriched to 3.67%, to 20%, to 60%, and then to 90% weapons-grade uranium. What does this actual process mean?
First of all, obviously enriched uranium is a key capability to develop a nuclear weapon. It can also be used for either purposes, civilian purposes and research purposes. You can use it to power nuclear submarines. Let’s just, if you don’t mind, if I could just break it down-
Lex Fridman
That’s fascinating. Yes.
That’s fascinating. Yes.
Mark Dubowitz
I think it’s, again, important just to understand the sort of basics before we jump into the allegations and claims and counterclaims. If you’re going to enrich to 3.67% enriched uranium, that’s for civilian nuclear power. But when you do that, you’re basically 70% of what you need to get to weapons grade. You’ve done all the steps, 70% of the steps, in order to get to weapons-grade uranium.
I think it’s, again, important just to understand the sort of basics before we jump into the allegations and claims and counterclaims. If you’re going to enrich to 3.67% enriched uranium, that’s for civilian nuclear power. But when you do that, you’re basically 70% of what you need to get to weapons grade. You’ve done all the steps, 70% of the steps, in order to get to weapons-grade uranium.
If you’re enriched to 20%, you are now at 90% of what you need to get to weapons-grade uranium. Now, why would you need 20%? You may need it for something like a research reactor, right?
Scott Horton
Medical isotopes.
Medical isotopes.
Mark Dubowitz
Correct. Iran has a Tehran research reactor for medical isotopes. By the way, you can buy those isotopes from abroad, or you can produce them at home. If you’re going to enrich to 60%, then you’ve done 99% of what you need to get to weapons-grade uranium. And then 90% is quote weapons-grade uranium. By the way, you can use 60% to actually deliver a crude nuclear device. That has been done in the past, but you want to get to quote 90%. That’s weapons-grade uranium, as Scott’s defining it. But just again, to clarify, these huge stockpiles of 60% that Iran has accumulated, this 16, 17 bombs worth of 60%, is 99% of what they need for weapons-grade. I just wanted to explain that.
Correct. Iran has a Tehran research reactor for medical isotopes. By the way, you can buy those isotopes from abroad, or you can produce them at home. If you’re going to enrich to 60%, then you’ve done 99% of what you need to get to weapons-grade uranium. And then 90% is quote weapons-grade uranium. By the way, you can use 60% to actually deliver a crude nuclear device. That has been done in the past, but you want to get to quote 90%. That’s weapons-grade uranium, as Scott’s defining it. But just again, to clarify, these huge stockpiles of 60% that Iran has accumulated, this 16, 17 bombs worth of 60%, is 99% of what they need for weapons-grade. I just wanted to explain that.
Scott Horton
But when you say … You’re saying if you include the mining, the refining of the ore into yellow cake, the transformation of that into uranium hexafluoride gas, the driving of it in a truck over to the centrifuge, and then spinning it, this is where we get this 90% number from, right? In place of 90% enriched uranium or 80% enriched uranium. It’s 90% of the way on some chart that includes picking up a shovel and beginning to mine. Right?
But when you say … You’re saying if you include the mining, the refining of the ore into yellow cake, the transformation of that into uranium hexafluoride gas, the driving of it in a truck over to the centrifuge, and then spinning it, this is where we get this 90% number from, right? In place of 90% enriched uranium or 80% enriched uranium. It’s 90% of the way on some chart that includes picking up a shovel and beginning to mine. Right?
Mark Dubowitz
Again, just to clarify, I just think it’s important to understand the definition of terms. Once you have 60% enriched uranium, you’ve done 99% of all the steps, including some of the steps that Scott’s talking about. You’ve done 99% of what you need to have weapons-grade-
Again, just to clarify, I just think it’s important to understand the definition of terms. Once you have 60% enriched uranium, you’ve done 99% of all the steps, including some of the steps that Scott’s talking about. You’ve done 99% of what you need to have weapons-grade-
Scott Horton
That’s just meaningless.
That’s just meaningless.
Lex Fridman
Why is that meaningless?
Why is that meaningless?
Scott Horton
Well, as I’ve already established numerous times here, under the JCPOA, they shipped out every bit of their enriched uranium stockpile. The French turned it into fuel rods and then shipped it back. That’s the deal they’re trying to get the US back into and were obviously clearly willing to do. And again, the only reason they were enriching up to 60% was to put the pressure on the Americans to go ahead and get back into the deal. And bad bet. It gave them an excuse to bomb based on the idea that people are going to listen to him, pretend that somehow that’s 99% of the way to the bomb, when you’re including driving to the mine and mining it and converting it to yellow cake and all these other things.
Well, as I’ve already established numerous times here, under the JCPOA, they shipped out every bit of their enriched uranium stockpile. The French turned it into fuel rods and then shipped it back. That’s the deal they’re trying to get the US back into and were obviously clearly willing to do. And again, the only reason they were enriching up to 60% was to put the pressure on the Americans to go ahead and get back into the deal. And bad bet. It gave them an excuse to bomb based on the idea that people are going to listen to him, pretend that somehow that’s 99% of the way to the bomb, when you’re including driving to the mine and mining it and converting it to yellow cake and all these other things.
Mark Dubowitz
You’re going to have a deliverable nuclear weapon, so you need the weapons-grade uranium. And just to repeat, they have multiple bombs worth of the 60% enriched uranium, which, again, is 99% of the steps you need to take for weapons grade. They’re very close to weapons grade. It’s 1% more that they need to do to enrich to weapons grade.
You’re going to have a deliverable nuclear weapon, so you need the weapons-grade uranium. And just to repeat, they have multiple bombs worth of the 60% enriched uranium, which, again, is 99% of the steps you need to take for weapons grade. They’re very close to weapons grade. It’s 1% more that they need to do to enrich to weapons grade.
The second aspect of a deliverable nuclear weapon is obviously the delivery vehicle, and those are the missiles. And according to the DNI and other incredible sources, Iran has got the largest missile inventory in the Middle East, 3,000 missiles before the war began and at least the ballistic missiles, 2,000, capable of reaching Israel. There’s no doubt that Iran has the ability once they have a weapons-grade uranium and the warhead to affix that to a missile and deliver that, certainly to hit Israel, hit our Gulf neighbors, hit Southern Europe.
They also have a active intercontinental ballistic missile program, an ICBM program, which ultimately is designed not to hit the Israelis or the Gulfies but to hit deeper into Europe and ultimately to target the United States. This just to understand the missile program. I think it’s an important part of it.
The third leg of the stool, and Scott has already alluded to this, and we’ve had some debate on this, and I think we should talk about it, what it really means in detail, is you’ve got to develop a warhead or a crude nuclear device. And according to estimates from both US government sources and nuclear experts, it would take about four to six months for Iran to develop a crude nuclear device. This is something that you wouldn’t use a missile to deliver, but you would use a plane or a ship. And it would take somewhere in the neighborhood of about a year and a half to deliver or to develop a warhead, and that’s to affix to the missile.
It’s sort of the three legs of the nuclear stool. The weapons-grade uranium. The missiles to deliver it. And the warhead. I just wanted to sort of define terms so that, when we’re having this big debate, your listeners kind of understand what we’re talking about-
Scott Horton
If I can jump in here on this point, too, and I’ll turn it back over to you, but I actually have a bit of a correction to make. For anyone who’s seen me on Piers Morgan or a Saagar and Krystal, I actually oversimplified and made a mistake. I’ve been off of the Iran nuclear beat for a little while doing other things, and so I’d like to take this opportunity to clarify, and I’m going to try to clarify with them on their shows, too, was I have … An old friend of mine used to make nuclear bombs, Gordon Prather, and I only just found out that he died two years ago, unfortunately. He used to write for us at antiwar.com. He’s a brilliant nuclear physicist and H-bomb developer, and he had really taught me all about this stuff.
If I can jump in here on this point, too, and I’ll turn it back over to you, but I actually have a bit of a correction to make. For anyone who’s seen me on Piers Morgan or a Saagar and Krystal, I actually oversimplified and made a mistake. I’ve been off of the Iran nuclear beat for a little while doing other things, and so I’d like to take this opportunity to clarify, and I’m going to try to clarify with them on their shows, too, was I have … An old friend of mine used to make nuclear bombs, Gordon Prather, and I only just found out that he died two years ago, unfortunately. He used to write for us at antiwar.com. He’s a brilliant nuclear physicist and H-bomb developer, and he had really taught me all about this stuff.
I’m not correcting anything you said. What he said essentially is right. I’d maybe add a little more detail. The easiest kind of nuke to make out of uranium is a simple gun-type nuke like they dropped on Hiroshima. It was Little Boy. It’s essentially a shotgun firing a uranium slug into a uranium target, and that’s enough. They didn’t even test it. They knew it’d worked. It was so easy to do the Hiroshima bomb.
The Nagasaki bomb was a plutonium implosion bomb. It’s virtually always plutonium that’s used in implosion bombs and in miniaturized nuclear warheads that can be married to missiles as opposed to a bomb you can drop out of the belly of a plane, as he was saying, right? Gun-type nuke. You can’t put that on a missile. That is by far the easiest kind of nuclear weapon for Iran to make if they broke out and made one, but it’d essentially be useless to them. What are they going to do? Drive it to Israel in a flatbed truck? They got no way to deliver that.
Lex Fridman
They could drop it as a bomb?
They could drop it as a bomb?
Scott Horton
They could test it in the desert and beat their chest, but essentially that’s all they could do.
They could test it in the desert and beat their chest, but essentially that’s all they could do.
Mark Dubowitz
Or you could drop it from a plane like we did, as Scott said, in with Hiroshima and Nagasaki.
Or you could drop it from a plane like we did, as Scott said, in with Hiroshima and Nagasaki.
Scott Horton
Well, very slim chance of Iranian heavy bombers getting through Israeli airspace, but anyway.
Well, very slim chance of Iranian heavy bombers getting through Israeli airspace, but anyway.
But to make an implosion bomb, they would have to do years worth of experiments, unless the Chinese or the Russians just gave them the software or gave them the finished blueprints or something, which there’s no indication of that whatsoever. The only people gave them blueprints for a nuclear bomb was the CIA. Remember Operation Merlin where they just changed one little thing and gave them nuclear bomb blueprints, but the Iranians didn’t take the bait?
Mark Dubowitz
The blueprints were given. Just to clarify, it’s just interesting just in the terms of the history of proliferation. Iran’s initial nuclear program, which is built on centrifuges, as Scott and I have been talking about … That was actually given to … The designs of that were given to them by AQ Khan who was really the father of the Pakistani nuclear program, and he actually stole those designs from the Dutch and handed it to the Iranians. He also handed it to the North Koreans and the Libyans and others. They were able to illicitly acquire this technology, or at least the blueprints for this technology, from the father of the Pakistani bomb. I think that’s an interesting point, but if you don’t mind-
The blueprints were given. Just to clarify, it’s just interesting just in the terms of the history of proliferation. Iran’s initial nuclear program, which is built on centrifuges, as Scott and I have been talking about … That was actually given to … The designs of that were given to them by AQ Khan who was really the father of the Pakistani nuclear program, and he actually stole those designs from the Dutch and handed it to the Iranians. He also handed it to the North Koreans and the Libyans and others. They were able to illicitly acquire this technology, or at least the blueprints for this technology, from the father of the Pakistani bomb. I think that’s an interesting point, but if you don’t mind-
Scott Horton
As I said earlier, because Bill Clinton clamped down on the Chinese and wouldn’t let them sell or anyone else wouldn’t let them sell them light water reactors, so then they went to AQ Khan and bought the stuff on the black market.
As I said earlier, because Bill Clinton clamped down on the Chinese and wouldn’t let them sell or anyone else wouldn’t let them sell them light water reactors, so then they went to AQ Khan and bought the stuff on the black market.
Mark Dubowitz
And they obviously bought heavy water reactors from the Russians, which they’ve been using for electricity. I want to just get to the second thing. I think it’s just important for listeners to know, and then I want to get to JCPOA-
And they obviously bought heavy water reactors from the Russians, which they’ve been using for electricity. I want to just get to the second thing. I think it’s just important for listeners to know, and then I want to get to JCPOA-
Scott Horton
I was in the middle of saying, though, when you’re trying to make a uranium implosion bomb or a plutonium implosion bomb, it’s a much more difficult task than putting together a gun-type nuke. Takes an extraordinary amount of testing. And that’s why he repeated, probably unknowingly, some false propaganda about Iran having this advanced testing facility. I think he was implying … Correct me if I’m wrong. I’m pretty sure you’re implying at Parchin that they were testing these implosion systems, but that’s completely debunked. It’s completely false.
I was in the middle of saying, though, when you’re trying to make a uranium implosion bomb or a plutonium implosion bomb, it’s a much more difficult task than putting together a gun-type nuke. Takes an extraordinary amount of testing. And that’s why he repeated, probably unknowingly, some false propaganda about Iran having this advanced testing facility. I think he was implying … Correct me if I’m wrong. I’m pretty sure you’re implying at Parchin that they were testing these implosion systems, but that’s completely debunked. It’s completely false.
What they were testing … What they were doing at Parchin with that implosion chamber was making nanodiamonds, and the scientist in charge of it was a Ukrainian who had studied in the Soviet Union at this military university where they said, “See, they study nuclear stuff there,” but that wasn’t his specialty. His name was Dan Olenko, and he was a specialist in making nanodiamonds.
And that facility was vouched by Robert Kelly in the Christian Science Monitor. Told Scott Peterson of the Christian Science Monitor that that stuff was nonsense, that that facility, that implosion chamber, could not be used for testing an implosion system for nuclear weapons. And I know from Dr. Prather telling me that, when the Americans were doing this, and the Russians, too, that they tested all their implosion systems outside. And you have to do it over and over and over again with lead instead of uranium in the core. And then you take all this high-speed X-ray film of the thing, and it’s this huge and drawn-out and incredibly complicated engineering process.
And this is probably why, the week before the war, the CIA said, “Not only do we think that they’re a year away from having enough nuclear material to make one bomb. We think they’re three years away from having a finished warhead.” That must have been, assuming that they would try to make an implosion system that you could put on, in other words, miniaturize, and put on a missile as opposed, in other words, skipping a gun-type nuke that would be useless to them.
It’s very important to understand then that, if they have a uranium route to the bomb, if they withdraw from the treaty and kick out the IAEA inspectors and announce that now we’re making nuclear bombs, they can either, one, race to a gun-type nuke that’s essentially useless to them, or they can take their ponderous-ass time trying to figure out how to make an implosion system work.
Mark Dubowitz
First of all, I’m glad Scott knows about what’s going on at Parchin because the IAEA doesn’t, and they’ve been asking the Iranians-
First of all, I’m glad Scott knows about what’s going on at Parchin because the IAEA doesn’t, and they’ve been asking the Iranians-
Scott Horton
That’s not true. That’s not true. The Iranians told the IAEA, “You can inspect any five out of 10 facilities here carte blanche. Go ahead.” And they did and found nothing. Then they made up the lies about the implosion chamber later. And the IAEA … Again, Robert Kelly is the American IAEA guy. Debunked that in the Christian Science Monitor.
That’s not true. That’s not true. The Iranians told the IAEA, “You can inspect any five out of 10 facilities here carte blanche. Go ahead.” And they did and found nothing. Then they made up the lies about the implosion chamber later. And the IAEA … Again, Robert Kelly is the American IAEA guy. Debunked that in the Christian Science Monitor.
Mark Dubowitz
All right. I want to just, again, just put it out there for your listeners. They should just Google AMAD, A-M-A-D, program, and they should learn about the AMAD program because it’s detailed in US government documents, experts in Iran’s nuclear program, including David Albright who actually saw the archive, went in there, wrote a whole book on it, and there’s a lot of detail about how Iran had an active nuclear weapons program called AMAD to build five nuclear weapons.
All right. I want to just, again, just put it out there for your listeners. They should just Google AMAD, A-M-A-D, program, and they should learn about the AMAD program because it’s detailed in US government documents, experts in Iran’s nuclear program, including David Albright who actually saw the archive, went in there, wrote a whole book on it, and there’s a lot of detail about how Iran had an active nuclear weapons program called AMAD to build five nuclear weapons.
Nuclear deal
But I want to get to the JCPOA because I actually think that’s an interesting discussion for Scott and I to have because I think there’s things that we agree on there and things that we disagree on. This is the 2015 nuclear deal that Obama reaches. It’s negotiated painstakingly over two years between 2013 and 2015, and it follows the interim agreement that the United States negotiated with Iran. And it’s in that interim agreement in 2013 where the United States for the first time actually gives Iran the right to enrich uranium.
There were five UN Security Council resolutions passed with the support of Russia and China that said Iran should have no enrichment capability and no plutonium reprocessing capability because of the fears that Iran would turn that into a nuclear weapons program. But in 2013, they give that up. 2015, we reached the JCPOA. And under the JCPOA, Iran is allowed to retain enrichment capability and reprocessing capability but over time. Scott mentioned the sunsets, and just want your listeners to understand what these sunsets are. Essentially, the restrictions that are placed on Iran’s nuclear program. And there’s some really serious restrictions placed on it, especially in the short term. Scott’s right. The enriched material. It has to be shipped out not to the French but to the Russians.
And there’s restrictions on Iran’s ability to operate these facilities, Natanz and Fordo. They’re not closed. They still remain open, but there are restrictions on what they can do with it. There’s also restrictions on Iran’s ability to test and install advanced centrifuges. Now, the reason you’d want an advanced centrifuge rather than the first-generation centrifuge that AQ Khan, the father of Pakistan’s nuclear bomb, gave to the Iranians is you need a smaller number of these centrifuges to produce weapons-grade uranium. If it’s smaller, Lex, it’s easier to hide, right? You can put it in clandestine facilities without this large enrichment centrifuge footprint. There’s restrictions on these advanced centrifuge R&D. And Iran gets significant sanctions relief as part of this.
But the whole assumption here, from both an Iranian and American perspective, is these restrictions are going to sunset. They’re going to disappear over time. In fact, 2025 is the year where some of the significant restrictions on Iran’s capabilities begin to sunset, and all of them are effectively gone by 2031. In 2031, Iran can emerge with an industrial size enrichment capability. They can emerge with advanced centrifuges that they can install in as many enrichment facilities as they want to build, and Iran can enrich to higher and higher levels. They can go from 3.67 to 20%. They can go to 60%. There’s nothing in the JCPOA that actually prohibits them from going to 90% enriched uranium.
And I think at the time, the Obama administration’s theory of the case was, sure, in 15 years time, but in 15 years time, we’ll be gone. Hopefully, there’ll be a different government in Iran, and maybe we can renegotiate a different agreement with that government that will extend the sunsets. That’s the JCPOA.
The reason that critics of the JCPOA, and I was one of them … We objected to the deal is not because it didn’t have some short-term temporary restrictions that were useful, but that if you got it wrong, and there was the same regime and power in 15 years, that regime could emerge with this huge nuclear program with the capabilities to develop nuclear weapons in these multiple hardened sites. Iran, we estimated, would have $1 trillion in sanctions relief over that 15- year period. And if you got it wrong that it was the same regime in power as had been in power in 2015, then you had some difficulties. I just wanted to lay out the case against the JCPOA.
Now, to steelman Scott’s argument, I think there’s a legitimate argument because I actually didn’t support the withdrawal from the agreement President Trump withdrew in 2018. I did a similar version of what Scott was suggesting, was I thought that the United States should negotiate with the Europeans, the French, the Germans, and the UK who are part of the original deal, extend the sunsets as an agreement between the United States and Europe, and then collectively go to the Iranians and say, “Let’s renegotiate this agreement to extend the sunsets. If you don’t want a nuclear weapons program, then you should agree that you don’t need these capabilities, and let’s extend the sunsets for another 15, 20, 30 years.” President Trump-
Scott Horton
Somebody give me a screenshot of this. Give me a pound, dude.
Somebody give me a screenshot of this. Give me a pound, dude.
Mark Dubowitz
There we go.
There we go.
Lex Fridman
Agreement.
Agreement.
Mark Dubowitz
There we go.
There we go.
Scott Horton
That’s fine.
That’s fine.
Lex Fridman
That makes my heart feel-
That makes my heart feel-
Scott Horton
And I think the Ayatollah would’ve gone for it too.
And I think the Ayatollah would’ve gone for it too.
Mark Dubowitz
Well, I’m not sure if he would’ve, but let’s … Just a little bit of history. I think it’s just useful for the viewers to know, again, the context, especially when Scott and I agree. A process was begun-
Well, I’m not sure if he would’ve, but let’s … Just a little bit of history. I think it’s just useful for the viewers to know, again, the context, especially when Scott and I agree. A process was begun-
Lex Fridman
I’m loving this so much.
I’m loving this so much.
Mark Dubowitz
… by the Trump administration. Trump appointed Brian Hook, or Secretary Pompeo actually appointed Brian Hook, who was the lead Iran envoy, and he began a process of talking to the Europeans. Now, the Europeans actually rejected this idea. And so at some point Trump said, “Look, if the Europeans aren’t prepared to get onside, then I’m out of the deal. I’m out of the deal.” And if you’re interested, I can talk about why I thought we should have stayed in the deal. Because I thought it gave us some important restrictions in the short term, certain leverage, but Trump decides to withdraw from that agreement because he recognizes that the fatal flaw of the agreement, the fatal flaws of the agreement are, one, giving them any enrichment capability, especially at an industrial size, within 15 years.
… by the Trump administration. Trump appointed Brian Hook, or Secretary Pompeo actually appointed Brian Hook, who was the lead Iran envoy, and he began a process of talking to the Europeans. Now, the Europeans actually rejected this idea. And so at some point Trump said, “Look, if the Europeans aren’t prepared to get onside, then I’m out of the deal. I’m out of the deal.” And if you’re interested, I can talk about why I thought we should have stayed in the deal. Because I thought it gave us some important restrictions in the short term, certain leverage, but Trump decides to withdraw from that agreement because he recognizes that the fatal flaw of the agreement, the fatal flaws of the agreement are, one, giving them any enrichment capability, especially at an industrial size, within 15 years.
And two, are these sunsets, as Scott said, which under which these restrictions are going to go away, and Iran’s going to end up with a massive nuclear program. I think that’s just important. We can talk about the JCPOA, the process, and everything else, if you’re interested-
Scott Horton
I’d like to go ahead and quickly accuse the FBI and the CIA of framing Trump for treason with Russia and pushing the Russiagate hoax. I’m trying to agree with my friend here. Because what it is is that that completely ruined Donald Trump’s ability to engage in real diplomacy with Russia for his entire first term. Certainly, for the first three years of it, he was completely handcuffed. It was terrible, as I’m sure you’re well aware, for the future, now our past, and current history of Ukraine, as well as for this deal too.
I’d like to go ahead and quickly accuse the FBI and the CIA of framing Trump for treason with Russia and pushing the Russiagate hoax. I’m trying to agree with my friend here. Because what it is is that that completely ruined Donald Trump’s ability to engage in real diplomacy with Russia for his entire first term. Certainly, for the first three years of it, he was completely handcuffed. It was terrible, as I’m sure you’re well aware, for the future, now our past, and current history of Ukraine, as well as for this deal too.
Why couldn’t Trump pick up the phone? I don’t know the details here, but I’ll take his word for it, that the British and the French and the Germans weren’t being nice to Trump. They didn’t like him. They didn’t want to do it. Why couldn’t he pick up the phone and say, “Hey, Putin, I need you to call the Ayatollah for me and tell him, hey, you’d like to see him lift these sunsets too and this and that,”? Why? Because they framed him for treason, so he was completely unable to engage in real diplomacy with Russia, and I bet that he’d agree with me on that one too.
Mark Dubowitz
Actually, can I just say one thing interesting? And again, I think it’s going to be a later topic, and so it’s going to be a provocative statement, but I think let’s put it on the table. I absolutely agree with Scott. I think it was a travesty of the accusations against Donald Trump as a Russian agent. I mean, completely debunked, but it did … I think it paralyzed.
Actually, can I just say one thing interesting? And again, I think it’s going to be a later topic, and so it’s going to be a provocative statement, but I think let’s put it on the table. I absolutely agree with Scott. I think it was a travesty of the accusations against Donald Trump as a Russian agent. I mean, completely debunked, but it did … I think it paralyzed.
Mark Dubowitz
I mean, completely debunked. But it did, I think it paralyzed his presidency for two, two and a half years. I agree with Scott. The idea that you would accuse the President of the United States of being a foreign agent for Vladimir Putin, I think is unfounded. And I thought at the time, disgraceful, and I thought it was really important. I think Scott did really good work in debunking that.
I mean, completely debunked. But it did, I think it paralyzed his presidency for two, two and a half years. I agree with Scott. The idea that you would accuse the President of the United States of being a foreign agent for Vladimir Putin, I think is unfounded. And I thought at the time, disgraceful, and I thought it was really important. I think Scott did really good work in debunking that.
I would say that just a couple of days ago, I was watching a podcast Scott was on and he accused Trump of being an agent for Netanyahu and the Israeli government. So I think again, the accusations that the President of the United States is a foreign agent for some foreign government, I think we should just put all of that aside in any discussion and just say, President Trump makes his own decisions whether we agree with them or agree with them, but he’s not working for the FSB and he’s not working for Mossad. President Trump makes his own decisions based on American national security.
Scott Horton
Now, I was making a point. That’s hyperbole, making a point. But he did. In fact, could you Google this for me? Because I always forget exactly how many hundreds of millions of dollars that he took from Sheldon Adelson and Miriam Adelson.
Now, I was making a point. That’s hyperbole, making a point. But he did. In fact, could you Google this for me? Because I always forget exactly how many hundreds of millions of dollars that he took from Sheldon Adelson and Miriam Adelson.
Mark Dubowitz
Who are Americans by the way.
Who are Americans by the way.
Scott Horton
Who are Americans. Who, Sheldon Adelson said his only regret in life is that he served in the American Army instead of the IDF, and said America should nuke Iran in order to get them to give up their nuclear weapons. He said, “I have one issue, one. Israel. And they gave Trump hundreds of millions of dollars over three campaigns.” That’s not just a, “Geez, I really hope you’ll think of me in the future.”
Who are Americans. Who, Sheldon Adelson said his only regret in life is that he served in the American Army instead of the IDF, and said America should nuke Iran in order to get them to give up their nuclear weapons. He said, “I have one issue, one. Israel. And they gave Trump hundreds of millions of dollars over three campaigns.” That’s not just a, “Geez, I really hope you’ll think of me in the future.”
Lex Fridman
Scott, first of all, a couple of things. So one, there’s a lot of people that are friends with Trump and try to gain influence. I believe that Trump, as an American, is making his own decisions. Let’s, for the purpose of this conversation, just focus on that and see what are the right decisions and what are the wrong decisions, and maybe-
Scott, first of all, a couple of things. So one, there’s a lot of people that are friends with Trump and try to gain influence. I believe that Trump, as an American, is making his own decisions. Let’s, for the purpose of this conversation, just focus on that and see what are the right decisions and what are the wrong decisions, and maybe-
Scott Horton
I wonder what decisions I could get you to make if I gave you hundreds of millions of dollars.
I wonder what decisions I could get you to make if I gave you hundreds of millions of dollars.
Lex Fridman
Well, me personally, you couldn’t give me… It doesn’t matter.
Well, me personally, you couldn’t give me… It doesn’t matter.
Scott Horton
I couldn’t get you to drop in on a vert ramp or nothing for a hundred million bucks.
I couldn’t get you to drop in on a vert ramp or nothing for a hundred million bucks.
Lex Fridman
Nothing. You cannot control my decisions with money.
Nothing. You cannot control my decisions with money.
Scott Horton
It’s the American system, Lex. That’s how it works. It’s money.
It’s the American system, Lex. That’s how it works. It’s money.
Lex Fridman
I appreciate that, yeah.
I appreciate that, yeah.
Scott Horton
Right.
Right.
Lex Fridman
We can go down that route.
We can go down that route.
Scott Horton
It’s the same if we were talking about Archer Daniels Midland company throwing hundreds of millions of dollars around. They get policies based on their hundreds of millions of dollars. The squeaky wheel gets the grease, right? All that.
It’s the same if we were talking about Archer Daniels Midland company throwing hundreds of millions of dollars around. They get policies based on their hundreds of millions of dollars. The squeaky wheel gets the grease, right? All that.
Mark Dubowitz
So Lex, I think you’re right. I mean, I think Elon Musk spent what, $400 million helping Trump get elected. And obviously, there are a number of philanthropists. I think, clearly his son, Don Jr’s had a lot of influence in who gets selected in these positions in the Pentagon, NSC, and Tucker Carlson has had a lot of influence. So I think as you say, he surrounds himself with people who have certain ideas, ideologies, policies. The President makes his own decisions.
So Lex, I think you’re right. I mean, I think Elon Musk spent what, $400 million helping Trump get elected. And obviously, there are a number of philanthropists. I think, clearly his son, Don Jr’s had a lot of influence in who gets selected in these positions in the Pentagon, NSC, and Tucker Carlson has had a lot of influence. So I think as you say, he surrounds himself with people who have certain ideas, ideologies, policies. The President makes his own decisions.
I just want to touch on just one thing because I don’t want to leave this alone. Just out of respect for the victims of Iran-backed terrorism and hostage-taking and assassinations since 1979. This is the regime that took hostages in ’79, took our diplomats hostage. Scott says ’83 was really the only thing that happened and throws out a lot of information, certainly some pretty breathtaking accusations that somehow the Israelis knew about this and didn’t tell the Americans.
Scott Horton
It’s a Mossad officer’s accusation.
It’s a Mossad officer’s accusation.
Mark Dubowitz
Yeah.
Yeah.
Scott Horton
Victor Ostrovsky, is his name.
Victor Ostrovsky, is his name.
Mark Dubowitz
Yeah. I know exactly who he is, and he has been widely discredited and having an ax to grind with Mossad. But anyway, not only ’83, but all through the 90s, the 2000s, 2010s, 2020s, there have been hundreds of attacks, of assassinations, of hostage taking. There are thousands Americans who have been killed and maimed by the regime.
Yeah. I know exactly who he is, and he has been widely discredited and having an ax to grind with Mossad. But anyway, not only ’83, but all through the 90s, the 2000s, 2010s, 2020s, there have been hundreds of attacks, of assassinations, of hostage taking. There are thousands Americans who have been killed and maimed by the regime.
Scott Horton
Can you be specific what you’re talking about here?
Can you be specific what you’re talking about here?
Mark Dubowitz
Yeah, I mean, I can give you a whole list.
Yeah, I mean, I can give you a whole list.
Scott Horton
Sure.
Sure.
Mark Dubowitz
Literally, I’m happy to pull it up. Lex, I shared it with you. It’s a long list of attacks all through the 80s and 90s.
Literally, I’m happy to pull it up. Lex, I shared it with you. It’s a long list of attacks all through the 80s and 90s.
Lex Fridman
Yeah, yeah. You sent me a link.
Yeah, yeah. You sent me a link.
Mark Dubowitz
I mean, everything from the Khobar Towers.
I mean, everything from the Khobar Towers.
Scott Horton
The Khobar Towers was Al-Qaeda.
The Khobar Towers was Al-Qaeda.
Mark Dubowitz
Well, can I-
Well, can I-
Scott Horton
That was Osama bin Laden and Khalid Shaikh Mohammed.
That was Osama bin Laden and Khalid Shaikh Mohammed.
Lex Fridman
Let him lay it out, please.
Let him lay it out, please.
Scott Horton
All right. Let’s hear them.
All right. Let’s hear them.
Mark Dubowitz
Yeah.
Yeah.
Scott Horton
I got my pen in my hand. Go ahead.
I got my pen in my hand. Go ahead.
Mark Dubowitz
Yeah, and again, according to US intelligence findings, it was actually Hezbollah that worked with Al-Qaeda, trained Al-Qaeda in that attack in the Khobar Towers. They were kidnapping our diplomats in Beirut. They launched attacks against our soldiers while in Iraq. The notion that somehow-
Yeah, and again, according to US intelligence findings, it was actually Hezbollah that worked with Al-Qaeda, trained Al-Qaeda in that attack in the Khobar Towers. They were kidnapping our diplomats in Beirut. They launched attacks against our soldiers while in Iraq. The notion that somehow-
Scott Horton
I already debunked that.
I already debunked that.
Mark Dubowitz
No, I don’t think, well, you say you debunked it, you just made your claim. But those were Iran-backed militias, backed by Qasem Soleimani, who Scott referred to, who was the commander of the IRGC Quds Force, who supplied them with those IEDs or those EFPs, actually, those explosives.
No, I don’t think, well, you say you debunked it, you just made your claim. But those were Iran-backed militias, backed by Qasem Soleimani, who Scott referred to, who was the commander of the IRGC Quds Force, who supplied them with those IEDs or those EFPs, actually, those explosives.
Scott Horton
[inaudible 01:06:49].
[inaudible 01:06:49].
Mark Dubowitz
Well, again, this has been all confirmed.
Well, again, this has been all confirmed.
Scott Horton
Why don’t you search Alyssa Rubin, New York Times EFP factory? Or you can look in the Christian Science Monitor for Operation Eagle Claw where-
Why don’t you search Alyssa Rubin, New York Times EFP factory? Or you can look in the Christian Science Monitor for Operation Eagle Claw where-
Mark Dubowitz
Yeah.
Yeah.
Scott Horton
… they found these things.
… they found these things.
Mark Dubowitz
Yeah.
Yeah.
Scott Horton
It’s easy to find in my book. You can flip right to Soda Straws and EFPs. And you see where I have all my citations for the solid dozen American newspaper reporters who were embedded with American soldiers who found these factories in Iraqi Shiaistan with Iraqi Arabs working the machines, not Iran.
It’s easy to find in my book. You can flip right to Soda Straws and EFPs. And you see where I have all my citations for the solid dozen American newspaper reporters who were embedded with American soldiers who found these factories in Iraqi Shiaistan with Iraqi Arabs working the machines, not Iran.
Mark Dubowitz
So I’d like your viewers to Google not just a couple of sources, but actually Google the US government reports that did a whole after-action report on the Iraq War. All the mistakes were made in the Iraq war, and there were legion of mistakes made. But it was very clear that Iran had actually provided the technology, the training, the funding for these Iran-backed militias to kill Americans. I mean, I could see, Scott-
So I’d like your viewers to Google not just a couple of sources, but actually Google the US government reports that did a whole after-action report on the Iraq War. All the mistakes were made in the Iraq war, and there were legion of mistakes made. But it was very clear that Iran had actually provided the technology, the training, the funding for these Iran-backed militias to kill Americans. I mean, I could see, Scott-
Scott Horton
In fact they learned a method from Lebanese, Hezbollah that got it from the IRA.
In fact they learned a method from Lebanese, Hezbollah that got it from the IRA.
Mark Dubowitz
Well-
Well-
Scott Horton
They didn’t even get the technique from the Iranians at all.
They didn’t even get the technique from the Iranians at all.
Mark Dubowitz
Yeah. So Lebanese, Hezbollah, as I’m sure all your listeners know, has been trained, financed-
Yeah. So Lebanese, Hezbollah, as I’m sure all your listeners know, has been trained, financed-
Scott Horton
It’s true-
It’s true-
Mark Dubowitz
… and supported by-
… and supported by-
Scott Horton
… but they got it from the IRA.
… but they got it from the IRA.
Mark Dubowitz
… Iran for many years.
… Iran for many years.
Scott Horton
The copper core bombs-
The copper core bombs-
Mark Dubowitz
Yeah.
Yeah.
Scott Horton
… and that design did not come from Persia.
… and that design did not come from Persia.
Mark Dubowitz
Yeah. So again, I think we all admit, Scott admits as well that Hezbollah was trained, financed, and supported by Iran. Hezbollah’s been responsible for many of these terrorist attacks.
Yeah. So again, I think we all admit, Scott admits as well that Hezbollah was trained, financed, and supported by Iran. Hezbollah’s been responsible for many of these terrorist attacks.
Scott Horton
Where does Hezbollah come from? It’s a reaction to the Israeli invasion of Lebanon where they went after the PLO and horribly mistreated the poor local Iraqi Shiites until they rose up and created these militias to fight in self-defense.
Where does Hezbollah come from? It’s a reaction to the Israeli invasion of Lebanon where they went after the PLO and horribly mistreated the poor local Iraqi Shiites until they rose up and created these militias to fight in self-defense.
Mark Dubowitz
Again-
Again-
Scott Horton
That’s where Hezbollah comes from.
That’s where Hezbollah comes from.
Mark Dubowitz
Hezbollah was actually created by the IROGC before the Israeli invasion. Why-
Hezbollah was actually created by the IROGC before the Israeli invasion. Why-
Scott Horton
This was the CIA’s Bin Laden unit. Mike Scheuer says it was Osama bin Laden and Khalid Shaikh Mohammed that did the Khobar Towers attack. And who did they kill? They killed 19 American airmen who were stationed there to bomb Iraq from bases in Saudi Arabia under the Israeli insisted upon Dual Containment Policy-
This was the CIA’s Bin Laden unit. Mike Scheuer says it was Osama bin Laden and Khalid Shaikh Mohammed that did the Khobar Towers attack. And who did they kill? They killed 19 American airmen who were stationed there to bomb Iraq from bases in Saudi Arabia under the Israeli insisted upon Dual Containment Policy-
Mark Dubowitz
What’s amazing-
What’s amazing-
Scott Horton
… of Bill Clinton.
… of Bill Clinton.
Mark Dubowitz
What’s amazing, Scott-
What’s amazing, Scott-
Scott Horton
That came from Yitzhak Shamir who had sent his man Martin Indyk to work for Bill Clinton and push the Dual Containment Policy, is where that comes from in the first place. The main reason Al-Qaeda turned against the United States, and the Khobar Towers attack was Bin Laden, and he bragged about it himself to Abdel Bari Atwan, the reporter from Al-Quds, Al-Arabi in London, and spent days with him and bragged all about it and blessed the martyrs and the rest of that and has widely discredited the claim that it was Iranian-backed Shiite Hezbollah that did the Khobar Towers attack.
That came from Yitzhak Shamir who had sent his man Martin Indyk to work for Bill Clinton and push the Dual Containment Policy, is where that comes from in the first place. The main reason Al-Qaeda turned against the United States, and the Khobar Towers attack was Bin Laden, and he bragged about it himself to Abdel Bari Atwan, the reporter from Al-Quds, Al-Arabi in London, and spent days with him and bragged all about it and blessed the martyrs and the rest of that and has widely discredited the claim that it was Iranian-backed Shiite Hezbollah that did the Khobar Towers attack.
That was what the Saudi government told the US. In fact, there’s a great documentary about John O’Neill who was the head of FBI counterterrorism who told Louis Free, “Boss, the Saudis are blowing smoke up your ass about this Hezbollah thing. It was Al-Qaeda that did it.” And then Louis Free got all upset because he used the A word. He was a very conservative Catholic guy, Louis Free, and then refused to listen to another word from John O’Neill about it.
Mark Dubowitz
So what we know now from Scott, because he’s given certainly a lot of context to how he actually sees things, is here’s who lies to you and here’s who doesn’t. US government lies to you. Israeli government lies to you. The Israelis clearly lie to you. Mendacious bunch. Saudis lie to you. But you know who doesn’t lie to you, actually? Hezbollah doesn’t lie to you. AL-Qaeda doesn’t lie to you.
So what we know now from Scott, because he’s given certainly a lot of context to how he actually sees things, is here’s who lies to you and here’s who doesn’t. US government lies to you. Israeli government lies to you. The Israelis clearly lie to you. Mendacious bunch. Saudis lie to you. But you know who doesn’t lie to you, actually? Hezbollah doesn’t lie to you. AL-Qaeda doesn’t lie to you.
Scott Horton
I didn’t cite Al-Qaeda or-
I didn’t cite Al-Qaeda or-
Mark Dubowitz
The Ayatollah-
The Ayatollah-
Scott Horton
… or Hezbollah. I cited Osama himself.
… or Hezbollah. I cited Osama himself.
Mark Dubowitz
And the Ayatollah of Iran won’t lie to you.
And the Ayatollah of Iran won’t lie to you.
Scott Horton
I cited Michael Scheuer, the chief of the CIA’s bin Laden unit. Right?
I cited Michael Scheuer, the chief of the CIA’s bin Laden unit. Right?
Mark Dubowitz
So make it clear here. The Iranians-
So make it clear here. The Iranians-
Scott Horton
[inaudible 01:10:25] Hezbollah-
[inaudible 01:10:25] Hezbollah-
Mark Dubowitz
The Iranians-
The Iranians-
Scott Horton
Did you get that?
Did you get that?
Lex Fridman
Scott, straight up, I hear you, but you’re interrupting and please, just honestly, it’s not about the content, but honestly.
Scott, straight up, I hear you, but you’re interrupting and please, just honestly, it’s not about the content, but honestly.
Scott Horton
How come you’re not saying to him, isn’t that weird that you just said he trusts Hezbollah even though he didn’t say anything about trusting Hezbollah?
How come you’re not saying to him, isn’t that weird that you just said he trusts Hezbollah even though he didn’t say anything about trusting Hezbollah?
Lex Fridman
I’m not calling out the content. I’m calling out the interruptions. He hasn’t interrupted you. It’s great. I’m loving the back and forth.
I’m not calling out the content. I’m calling out the interruptions. He hasn’t interrupted you. It’s great. I’m loving the back and forth.
Scott Horton
Yeah.
Yeah.
Lex Fridman
It is great. But just a little less talking over each other. That’s all.
It is great. But just a little less talking over each other. That’s all.
Mark Dubowitz
Yeah. So I mean, again, the sort of view of the regime in Iran, and I think Scott wisely said at the beginning of this discussion, what did you say? “I don’t have any love for the Ayatollah. I’m a Texan. I don’t have any love for the Ayatollah in Iran.” And yet, despite the fact, Scott, doesn’t have love for the Ayatollah, I agree with him and I think he’s being sincere, in every discussion that we’ve had on every topic, it’s always about everyone’s lying except the Ayatollah in Iran. He’s not lying about having a nuclear weapons program.
Yeah. So I mean, again, the sort of view of the regime in Iran, and I think Scott wisely said at the beginning of this discussion, what did you say? “I don’t have any love for the Ayatollah. I’m a Texan. I don’t have any love for the Ayatollah in Iran.” And yet, despite the fact, Scott, doesn’t have love for the Ayatollah, I agree with him and I think he’s being sincere, in every discussion that we’ve had on every topic, it’s always about everyone’s lying except the Ayatollah in Iran. He’s not lying about having a nuclear weapons program.
He didn’t actually support all of these terrorist organizations that he founded, financed, and supported to kill Americans. It wasn’t the Ayatollah in Iran. He’s not lying about his deception campaign against the United States. He’s not lying about negotiations with the Americans. It’s the American’s fault all the time. So he’s presented all the time in Scott’s conception here as a sincere actor who doesn’t want to develop nuclear weapons, who doesn’t actually want to kill Americans. He’s just always a victim of American and Israeli aggression.
I think it’s an interesting conception. I think let’s talk about it. And I mean, I’m fascinated by the conception because it’s very contrary to mine, obviously. It’s very contrary to I think, decades of overwhelming evidence that the Islamic Republic has been worth the United States since 1979. And I don’t take too much stock in what people say. I take stock in what they do. So “Death to America, Death to Israel” could just be a slogan. It could be just propaganda. But when it’s actually operationalized, then you start to ask, “Well, maybe it’s not just propaganda, maybe it’s intention operationalized into capabilities.”
What we’re forgetting here, and again, it’s this causal relationship. It’s we aggress against Iran and the Israelis aggress against Iran, and Iran is always reacting. I mean, let’s give the Iranians their due, because Khomeini made it very clear when he established the Islamic Republic that there will be a revolutionary and expansionist regime, and they will expand their power through the Middle East. And so he built, and to his credit, was very successful until October 7th, this axis of resistance, as he calls it, which are these terror proxy armies, Hezbollah, Hamas, Palestinian, Islamic Jihad, the Iraqi Shiite militias, the Houthis in Yemen, and certainly supporting the Assad regime in Syria.
He built a very, very impressive and deadly axis that he turned against the United States and against Israel, which saw its culmination on October 7th. I think after October 7th, that was a huge miscalculation for Khomeini, and we’ve seen the results of what’s happened to his axis of resistance through quite devastating Israeli military capabilities over the past number of months. But he has an ideology, and I think where I agree with Scott is I’m not sure if Khomeini would actually use a nuclear weapon against Israel, the United States, because I don’t think Khomeini is suicidal.
But I think what Khomeini wants is he wants a nuclear weapon as a backstop for his conventional power, right? It’s very much the Kim Jong-Un model of North Korea, right? I’m going to have nuclear weapons with ICBMs to threaten America, but what I’m actually going to do is threaten South Korea with having massive conventional capabilities on the DMZ that I could take South Korea in a week, I could destroy in a week. So, you, the United States and South Korea have no military option. That’s Khomeini’s view. He can actually building up this massive ballistic missile arsenal that he’s unleashed in the past 12 days that according to, again, the US and Israel was going to go from 2,000 to 6,000 to 20,000, that from Khomeini’s perspective, he didn’t need to drop a nuclear bomb on Tel Aviv.
What he needed to do was use the threat of nuclear escalation in order to use his conventional capabilities, his missiles, to destroy Tel Aviv. And you’ve already seen the damage from just a few dozen ballistic missiles getting through the kind of damage that he’s wrought on Tel Aviv already. That is the conception that Khomeini has. It’s a revolutionary regime. It aggresses. And I do think it’s interesting, and I think we should talk about it.
Lex Fridman
Actually, that’s a good cue.
Actually, that’s a good cue.
Mark Dubowitz
Take a bathroom break.
Take a bathroom break.
Lex Fridman
Let’s take a bath and break.
Let’s take a bath and break.
Mark Dubowitz
All right.
All right.
Lex Fridman
Okay. We took a quick break and now, Scott.
Okay. We took a quick break and now, Scott.
Scott Horton
Yeah. Okay. So a few things there. First of all, on Ahmad, the pre-2003 nuclear weapons research, the CIA estimate in 2007 concluded that all research had stopped in 2003, and Seymour Hersh reported that the reasoning behind that was mainly that America had gotten rid of Saddam Hussein for them. Now, in Gareth Porter’s book Manufactured Crisis, he shows that the major conclusion that the DIA had made, that the Iranians were researching nuclear weapons, was based on some invoices that they had intercepted for some dual use materials, some specialty magnets and things that they thought, “Boy, this looks like this could be part of a weaponization program, a secret program here.”
Yeah. Okay. So a few things there. First of all, on Ahmad, the pre-2003 nuclear weapons research, the CIA estimate in 2007 concluded that all research had stopped in 2003, and Seymour Hersh reported that the reasoning behind that was mainly that America had gotten rid of Saddam Hussein for them. Now, in Gareth Porter’s book Manufactured Crisis, he shows that the major conclusion that the DIA had made, that the Iranians were researching nuclear weapons, was based on some invoices that they had intercepted for some dual use materials, some specialty magnets and things that they thought, “Boy, this looks like this could be part of a weaponization program, a secret program here.”
And Gareth Porter, who’s a really great critic of all of these policies and claims says, “Hey, this was a good faith misunderstanding by DIA. They were doing their job.” But it turned out the IAEA later, when America gave them that information, the IAEA went and verified, “Oh, there’s the magnet and there’s this and there’s that.” And all those dual use items actually were being used for civilian purposes. And so then as Gareth writes in his book, “The only real reason that the NIE said that they even had a program before 2003 was essentially because they didn’t want to dispute their last mistaken conclusion. So they said, ‘Okay, well, that was right up until then, but that was when that changed'”
And then the other half of their reason for accepting that there ever was a nuclear weapons research program in the country before 2003 was the smoking laptop. And I’m sorry, I think I misspoke earlier when I said that the laptop was in 2005, that was just the Washington Post story that had a bunch of stuff about it. That was in 2003 as well, or 2004 possibly. So this was why the, but it was still all, again, forged by the Israelis and funneled through the MEK cult, but was obsolete essentially, and had nothing in it. At least the accusations in it weren’t passed ’03. And so there’s really no reason to believe that there was actually a nuclear weapons research program even before ’03, which then again, the National Intelligence Council says ended in 2003 and hasn’t been restored since then.
Mark Dubowitz
Scott, can I ask you a question? Not a comment by me, but a question.
Scott, can I ask you a question? Not a comment by me, but a question.
Scott Horton
Sure.
Sure.
Mark Dubowitz
Just your perspective. So just so I understand this, so the nuclear archive, this massive archive that the Israelis were able to take out of Tehran, bring to the United States, bring to the IAEA, which is very detailed blueprints.
Just your perspective. So just so I understand this, so the nuclear archive, this massive archive that the Israelis were able to take out of Tehran, bring to the United States, bring to the IAEA, which is very detailed blueprints.
Scott Horton
It’s just the alleged studies documents again, it’s the same stuff from the smoking laptop.
It’s just the alleged studies documents again, it’s the same stuff from the smoking laptop.
Mark Dubowitz
Yeah. So let me just ask you, because it’s huge, and it’s very detailed, and it shows clearly that Iran had an active nuclear weapons program, certainly until 2003. And then we can have a discussion about what happened after that. Are you suggesting that that’s all been forged by Israel?
Yeah. So let me just ask you, because it’s huge, and it’s very detailed, and it shows clearly that Iran had an active nuclear weapons program, certainly until 2003. And then we can have a discussion about what happened after that. Are you suggesting that that’s all been forged by Israel?
Scott Horton
Yes. Nothing in this smoking laptop held up.
Yes. Nothing in this smoking laptop held up.
Mark Dubowitz
All four? Not the laptop, but this entire archive that they pulled out with the stats-
All four? Not the laptop, but this entire archive that they pulled out with the stats-
Scott Horton
You’re thinking of-
You’re thinking of-
Mark Dubowitz
… and blueprints?
… and blueprints?
Scott Horton
… the big photo op with all the folders of documents-
… the big photo op with all the folders of documents-
Mark Dubowitz
No, no-
No, no-
Scott Horton
… behind them and all.
… behind them and all.
Mark Dubowitz
… I’ve seen it. I’ve seen it. I’ve seen many-
… I’ve seen it. I’ve seen it. I’ve seen many-
Scott Horton
How many pages were?
How many pages were?
Mark Dubowitz
… many of the documents. There’s thousands of pages. I’m asking, this is not what I’m claiming. Is that all forged by Israel?
… many of the documents. There’s thousands of pages. I’m asking, this is not what I’m claiming. Is that all forged by Israel?
Scott Horton
Is that not all about the uranium tetra fluoride and the warhead that David Albright debunked and all the same claims that were in the smoking laptop from the Bush years?
Is that not all about the uranium tetra fluoride and the warhead that David Albright debunked and all the same claims that were in the smoking laptop from the Bush years?
Mark Dubowitz
David Albright actually wrote an entire book. It’s a very detailed book your listeners should Google. It’s David Albright in the archive where he goes in, he went in detail and he confirms the information in that archive that Iran had an active program under something called Ahmad to develop five atomic weapons. So again, you and I can debate this all day.
David Albright actually wrote an entire book. It’s a very detailed book your listeners should Google. It’s David Albright in the archive where he goes in, he went in detail and he confirms the information in that archive that Iran had an active program under something called Ahmad to develop five atomic weapons. So again, you and I can debate this all day.
Scott Horton
Now, this would’ve been before Natanz was even dug and before a single centrifuge was spinning right?
Now, this would’ve been before Natanz was even dug and before a single centrifuge was spinning right?
Mark Dubowitz
And again, forget all that.
And again, forget all that.
Scott Horton
I’m just making sure everybody understands, assuming that was true, we were talking about a piece of paper?
I’m just making sure everybody understands, assuming that was true, we were talking about a piece of paper?
Mark Dubowitz
It’s not a piece of paper. It’s a massive archive. I’m just asking the question. You believe Mossad fabricated all of this as a lie to deceive the United States, the IAEA, and the international community? That’s just my question.
It’s not a piece of paper. It’s a massive archive. I’m just asking the question. You believe Mossad fabricated all of this as a lie to deceive the United States, the IAEA, and the international community? That’s just my question.
Scott Horton
My understanding is that there’s nothing significant in the 2018 archive that was not already in the debunked claims from the laptop.
My understanding is that there’s nothing significant in the 2018 archive that was not already in the debunked claims from the laptop.
Mark Dubowitz
But my question is not that it’s debunked because we can argue about whether it’s debunked or not, but are you saying that Mossad fabricated it? That’s what you’re claiming?
But my question is not that it’s debunked because we can argue about whether it’s debunked or not, but are you saying that Mossad fabricated it? That’s what you’re claiming?
Scott Horton
Yeah. Yeah. Yeah, because the CIA admitted that there was no laptop and Oli Heinonen admitted-
Yeah. Yeah. Yeah, because the CIA admitted that there was no laptop and Oli Heinonen admitted-
Mark Dubowitz
Not the laptop.
Not the laptop.
Scott Horton
… that he got it from the MEK.
… that he got it from the MEK.
Mark Dubowitz
I’m not asking about laptop. I’m not asking for-
I’m not asking about laptop. I’m not asking for-
Scott Horton
He got it from the MEK. Where did the MEK get it? The MEK got it from the Israelis.
He got it from the MEK. Where did the MEK get it? The MEK got it from the Israelis.
Mark Dubowitz
Scott, I’m not asking about the laptop. I’m asking about this huge archive that was sitting in a warehouse in Tehran full of-
Scott, I’m not asking about the laptop. I’m asking about this huge archive that was sitting in a warehouse in Tehran full of-
Scott Horton
I don’t know the truth behind those documents. I don’t believe Israeli claims of what they were and where they came from without, for example, reading Albright’s book and seeing what he has to say about all of that. I don’t take Netanyahu’s claims. Okay, so what’s so significant in there? You say that there’s a document that has a plan to make five bombs, but isn’t the rest of the proof the same green salt experiments and the warhead for the missile that David Albright showed was obviously fake, because the warhead was purportedly being designed for a missile that was now going to have an entirely different nose cone on it?
I don’t know the truth behind those documents. I don’t believe Israeli claims of what they were and where they came from without, for example, reading Albright’s book and seeing what he has to say about all of that. I don’t take Netanyahu’s claims. Okay, so what’s so significant in there? You say that there’s a document that has a plan to make five bombs, but isn’t the rest of the proof the same green salt experiments and the warhead for the missile that David Albright showed was obviously fake, because the warhead was purportedly being designed for a missile that was now going to have an entirely different nose cone on it?
Mark Dubowitz
No. So David Albright, again, we should bring David Albright here.
No. So David Albright, again, we should bring David Albright here.
Iran Nuclear Archive
Lex Fridman
David Albright is a prominent physicist nuclear proliferation expert known for his detailed research and publication on nuclear weapons.
David Albright is a prominent physicist nuclear proliferation expert known for his detailed research and publication on nuclear weapons.
Mark Dubowitz
Yeah.
Yeah.
Lex Fridman
He has a bunch of books Peddling Peril, Iran’s Perilous Pursuit of Nuclear Weapons, Plutonium and Highly Enriched Uranium, 1996 and so on.
He has a bunch of books Peddling Peril, Iran’s Perilous Pursuit of Nuclear Weapons, Plutonium and Highly Enriched Uranium, 1996 and so on.
Mark Dubowitz
Yeah, so folks should read the book on the archive because David had full access to the archive, all the detailed documents and blueprints, and he writes a book that, again, the conclusion of which is Iran had an active nuclear weapons program.
Yeah, so folks should read the book on the archive because David had full access to the archive, all the detailed documents and blueprints, and he writes a book that, again, the conclusion of which is Iran had an active nuclear weapons program.
Scott Horton
No, no, no. The conclusion of which was they were researching it right before 2003. They had no nuclear material to introduce into a single machine, right?
No, no, no. The conclusion of which was they were researching it right before 2003. They had no nuclear material to introduce into a single machine, right?
Mark Dubowitz
Well, they actually-
Well, they actually-
Scott Horton
Active program, meaning they had- a piece of-
Active program, meaning they had- a piece of-
Mark Dubowitz
No, they had already built a covert enrichment facility, which was only-
No, they had already built a covert enrichment facility, which was only-
Scott Horton
No they hadn’t.
No they hadn’t.
Mark Dubowitz
It was closed.
It was closed.
Scott Horton
Natanz was empty until the end of 2006, right? They didn’t even start spinning centrifuges in there until ’06.
Natanz was empty until the end of 2006, right? They didn’t even start spinning centrifuges in there until ’06.
Mark Dubowitz
They had gotten centrifuges for AQ-Khan. They’d built a deeply buried underground facility at Natanz. They were putting in place the component parts for a nuclear weapons capability. And Ahmad showed, conclusively, unless you believe Mossad fabricated all-
They had gotten centrifuges for AQ-Khan. They’d built a deeply buried underground facility at Natanz. They were putting in place the component parts for a nuclear weapons capability. And Ahmad showed, conclusively, unless you believe Mossad fabricated all-
Scott Horton
We’ll see.
We’ll see.
Mark Dubowitz
… that they actually had the plan to build nuclear warheads.
… that they actually had the plan to build nuclear warheads.
Scott Horton
Again, Seymour Hersh says that it was when-
Again, Seymour Hersh says that it was when-
Mark Dubowitz
Well, Seymour Hersh is not a nuclear weapons expert. David Albright has, he saw the archive.
Well, Seymour Hersh is not a nuclear weapons expert. David Albright has, he saw the archive.
Scott Horton
Hersh’s sources said-
Hersh’s sources said-
Mark Dubowitz
You’re claiming that America fabricated-
You’re claiming that America fabricated-
Scott Horton
… that when America invaded Iraq and overthrew Saddam Hussein for them, that was when they gave up, even considering the need for it. Remember, the Iranians held a million-man vigil for the Americans on September 11th. The Iranians hated the Taliban. In fact, the Americans thought Iran might invade Afghanistan earlier in 2001, and they hated Saddam Hussein.
… that when America invaded Iraq and overthrew Saddam Hussein for them, that was when they gave up, even considering the need for it. Remember, the Iranians held a million-man vigil for the Americans on September 11th. The Iranians hated the Taliban. In fact, the Americans thought Iran might invade Afghanistan earlier in 2001, and they hated Saddam Hussein.
Mark Dubowitz
Yeah.
Yeah.
Scott Horton
So they had every reason in the world to want to work with the United States-
So they had every reason in the world to want to work with the United States-
Mark Dubowitz
No, that’s a distraction.
No, that’s a distraction.
Scott Horton
… after September 11th. And the American-
… after September 11th. And the American-
Mark Dubowitz
My questions to you. It’s a distraction. My question-
My questions to you. It’s a distraction. My question-
Scott Horton
It is-
It is-
Mark Dubowitz
… let’s not go to al-Qaeda, the Taliban and 9/11 and the Iranians, and the Million People Vigil. Let’s just stay on the topic.
… let’s not go to al-Qaeda, the Taliban and 9/11 and the Iranians, and the Million People Vigil. Let’s just stay on the topic.
Scott Horton
You’re asking me what I already answered.
You’re asking me what I already answered.
Mark Dubowitz
Do you believe Mossad fabricated that entire-
Do you believe Mossad fabricated that entire-
Scott Horton
I already told you-
I already told you-
Mark Dubowitz
… archive?
… archive?
Scott Horton
… I don’t take their word for anything. And as far as I understand, the accusations in there are the same ones from the laptop that are already discredited. And I haven’t read David Albright’s book. You’re distracting from me refuting this giant list of false claims that you made previously that I haven’t got a chance-
… I don’t take their word for anything. And as far as I understand, the accusations in there are the same ones from the laptop that are already discredited. And I haven’t read David Albright’s book. You’re distracting from me refuting this giant list of false claims that you made previously that I haven’t got a chance-
Mark Dubowitz
Okay. Let’s all agree. Let’s all agree, you’re going to read the book? Maybe Lex, you’re going to read the book. Viewers, you should read the book. I think David Albright has done a meticulous job. By the way, just warning, it’s a big book, very detailed, hundreds of pages. And he goes through it in meticulous detail in analyzing this archive, and showed again that Iran had an active nuclear weapons program designed to build five atomic warheads. Now we can talk about what happened after 2003, and did they make the decision to totally stop it?
Okay. Let’s all agree. Let’s all agree, you’re going to read the book? Maybe Lex, you’re going to read the book. Viewers, you should read the book. I think David Albright has done a meticulous job. By the way, just warning, it’s a big book, very detailed, hundreds of pages. And he goes through it in meticulous detail in analyzing this archive, and showed again that Iran had an active nuclear weapons program designed to build five atomic warheads. Now we can talk about what happened after 2003, and did they make the decision to totally stop it?
Scott Horton
Yeah, God changed his mind after the Neoconservatives lied America into war with Iraq for Ariel Sharon.
Yeah, God changed his mind after the Neoconservatives lied America into war with Iraq for Ariel Sharon.
Lex Fridman
So just to clarify, you, Mark, and David Albright believed that Iran was developing a nuclear weapon. And you, Scott are saying they were not before 2003?
So just to clarify, you, Mark, and David Albright believed that Iran was developing a nuclear weapon. And you, Scott are saying they were not before 2003?
Scott Horton
I’m saying-
I’m saying-
Lex Fridman
That’s just to summarize what we were just talking about.
That’s just to summarize what we were just talking about.
Scott Horton
Well, I could tell you that, so Gareth’s book came out in 2014, which is before this archive was supposedly revealed in Tehran. But in Gareth’s book, he shows that the CIA and National Intelligence estimate of 2007 that said that there was a program before 2003, and was halted after America invaded Iraq was based on one, the DIA’s mistaken, but sincere interpretation of these invoices for these dual use technologies. And then the smoking laptop, which was completely fake and funneled into the stream by the Mujahideen e-cult, communist terrorist cult. The same people who’ve come off with 10 major hoaxes. The NCRI, the National Council for Resistance in Iran, that’s the MEK. They just put out a fake story, what, three, four weeks ago about a big secret nuclear weapons site in Iran. Don’t you remember? And then nothing happened with that because it was another lie by the MEK. It happens all the time.
Well, I could tell you that, so Gareth’s book came out in 2014, which is before this archive was supposedly revealed in Tehran. But in Gareth’s book, he shows that the CIA and National Intelligence estimate of 2007 that said that there was a program before 2003, and was halted after America invaded Iraq was based on one, the DIA’s mistaken, but sincere interpretation of these invoices for these dual use technologies. And then the smoking laptop, which was completely fake and funneled into the stream by the Mujahideen e-cult, communist terrorist cult. The same people who’ve come off with 10 major hoaxes. The NCRI, the National Council for Resistance in Iran, that’s the MEK. They just put out a fake story, what, three, four weeks ago about a big secret nuclear weapons site in Iran. Don’t you remember? And then nothing happened with that because it was another lie by the MEK. It happens all the time.
Mark Dubowitz
So Lex, maybe we should talk about what happened after 2003. What about this 2007 NIE? What does it mean? Did it mean Iran had now abandoned its nuclear weapons program or did something else happen?
So Lex, maybe we should talk about what happened after 2003. What about this 2007 NIE? What does it mean? Did it mean Iran had now abandoned its nuclear weapons program or did something else happen?
Scott Horton
They never had a nuclear weapons program.
They never had a nuclear weapons program.
Mark Dubowitz
All right, but let’s talk about that. They had-
All right, but let’s talk about that. They had-
Scott Horton
[inaudible 01:24:42]-
[inaudible 01:24:42]-
Mark Dubowitz
… interesting history.
… interesting history.
Scott Horton
According to NIE, They had a nuclear weapons research program that never made anything at all. So you can try to conflate that if you want.
According to NIE, They had a nuclear weapons research program that never made anything at all. So you can try to conflate that if you want.
Mark Dubowitz
No. That’s not-
No. That’s not-
Scott Horton
But I think everybody can see what you’re doing there.
But I think everybody can see what you’re doing there.
Mark Dubowitz
… what the 2007 NIE says. But the 2007 NIE says is that, and you are correct, according to the 2007 NIE is Iran made the decision after the invasion of Iraq not to pursue an active nuclear weapons program anymore.
… what the 2007 NIE says. But the 2007 NIE says is that, and you are correct, according to the 2007 NIE is Iran made the decision after the invasion of Iraq not to pursue an active nuclear weapons program anymore.
Scott Horton
Because we were putting their best friends in power in Baghdad for them.
Because we were putting their best friends in power in Baghdad for them.
Mark Dubowitz
Well, because the United States had gone in-
Well, because the United States had gone in-
Scott Horton
So they didn’t need to worry no more.
So they didn’t need to worry no more.
Mark Dubowitz
And in a matter of 100 days, had taken down the Iraqi army.
And in a matter of 100 days, had taken down the Iraqi army.
Scott Horton
And put in Abdul Aziz al-Hakim’s faction-
And put in Abdul Aziz al-Hakim’s faction-
Mark Dubowitz
That’s fine.
That’s fine.
Scott Horton
… the Supreme Council for Islamic Revolution in Iraq who’d been living in Iran for 20 years.
… the Supreme Council for Islamic Revolution in Iraq who’d been living in Iran for 20 years.
Mark Dubowitz
That’s why you and I did not publicly support the Iraq War, did we?
That’s why you and I did not publicly support the Iraq War, did we?
Scott Horton
I publicly opposed it.
I publicly opposed it.
Mark Dubowitz
Good for you.
Good for you.
Scott Horton
As far as I possibly could. Thank you.
As far as I possibly could. Thank you.
Mark Dubowitz
I should have publicly opposed it rather than just working on Iran in 2003. But you’re right, it redounded to the benefit of Iran, that invasion. But that’s not actually what I’m talking about. What I’m talking about is 100 days the Iranian Sea that the US military has taken down the Iraqi army, that they had fought an eight-year war with where almost a million people, Scott, as you know, had been killed. So they were afraid that the United States was going to march from Baghdad to Tehran. So they make a decision to end their active Ahmad program. They make a decision to build up the key capabilities they need to retain an Iranian nuclear weapons option, specifically the enrichment capabilities at Natanz, and then Fordow, and at Iraq given them the plutonium route. And then what they do is they take the members of the Ahmad program, the nuclear weapons scientists that have worked on this, and they disperse them. So they’re now no longer in a formal weapons program. They’re put in a number of different research centers and universities.
I should have publicly opposed it rather than just working on Iran in 2003. But you’re right, it redounded to the benefit of Iran, that invasion. But that’s not actually what I’m talking about. What I’m talking about is 100 days the Iranian Sea that the US military has taken down the Iraqi army, that they had fought an eight-year war with where almost a million people, Scott, as you know, had been killed. So they were afraid that the United States was going to march from Baghdad to Tehran. So they make a decision to end their active Ahmad program. They make a decision to build up the key capabilities they need to retain an Iranian nuclear weapons option, specifically the enrichment capabilities at Natanz, and then Fordow, and at Iraq given them the plutonium route. And then what they do is they take the members of the Ahmad program, the nuclear weapons scientists that have worked on this, and they disperse them. So they’re now no longer in a formal weapons program. They’re put in a number of different research centers and universities.
And Mohsen Fakhrizadeh, who you mentioned earlier, who’s in some respects, I wouldn’t call him the Oppenheimer of the Iranian nuclear weapons program. He’s more like… Who was in the Oppenheimer movie, Leslie Grove, the guy who was actually responsible for the organization, and the training, and the recruitment, and the guy that actually ran the program as opposed to Oppenheimer, the sort of brilliant nuclear physicist. This is Fakhrizadeh. Fakhrizadeh takes control of this program. And now it is dispersed and it is unstructured in that sense because they recognize that if they continue with this, the United States may march to Tehran.
And so the NIE says, “Iran is retaining the key capabilities, the enrichment capabilities to give them an option for a nuclear weapon. But we, the NIE, have decided, or we have concluded that they no longer have an active structured nuclear weapons program.” However, since then, what have we seen? We’ve seen them actually do what many suspected they would do, which is build all the key capabilities that they need so that at time of their choosing, they can decide to develop a nuclear bomb, whether it’s a crude nuclear device as you’ve described, whether it’s a nuclear warhead. We’ve had that discussion so far.
Scott Horton
But-
But-
Mark Dubowitz
But, sorry, just to finish. So just understand the brilliance of Iranian nuclear deception, right? I think it’s really interesting to get in the minds of the Ayatollah and understand this, because he doesn’t want to provoke the United States. He doesn’t want to see another Iraq-style invasion, this time of his country. He’s building this capability on the enrichment side and on the reprocessing side. He is framing this as I’m only building a civilian nuclear program. He’s taken the weapons scientists who are building part of an active nuclear weapons program, and he’s dispersing them, putting them under the guidance and direction of Fakhrizadeh and starting to build out these capabilities.
But, sorry, just to finish. So just understand the brilliance of Iranian nuclear deception, right? I think it’s really interesting to get in the minds of the Ayatollah and understand this, because he doesn’t want to provoke the United States. He doesn’t want to see another Iraq-style invasion, this time of his country. He’s building this capability on the enrichment side and on the reprocessing side. He is framing this as I’m only building a civilian nuclear program. He’s taken the weapons scientists who are building part of an active nuclear weapons program, and he’s dispersing them, putting them under the guidance and direction of Fakhrizadeh and starting to build out these capabilities.
I mean, I have to say, I really admire the way he’s played this three-dimensional nuclear chess game. It’s very, very interesting. And I think he made a tragic mistake about six weeks ago when he rejected the offer from Trump at Oman and then provoked both an Israeli and then an American strike. But he was playing this game almost perfectly before then in building out these capabilities. And I think what he should have done, if I were him, I would’ve waited out Trump. I would’ve waited three and a half years. I would’ve taken the offer in Oman, which gave him enrichment capability above ground. This consortium that was going to be built in three and a half years would never be built.
And even if it was built, he could just say, “I’m not interested anymore,” and challenge the next president, whoever that is, Republican or Democrat, to do anything about it. And I think the political calculation should have been, ” The next president’s not going to do anything about this. I’ll be able to then be able to complete my nuclear weapons program.” But he challenged Trump. He thought Trump was a paper tiger. He rejected that offer at Oman. And we’ve seen what’s happened over the past couple of weeks.
Lex Fridman
Two things. One, can you go and respond to certain things that you heard? And two, can we generally move in the direction of the modern day and trying to see what is the right thing now, our analysis of the situation now, we’ve been kind of staying in the context of history, which is really important, but sort of moving it forward? But yeah, go ahead please.
Two things. One, can you go and respond to certain things that you heard? And two, can we generally move in the direction of the modern day and trying to see what is the right thing now, our analysis of the situation now, we’ve been kind of staying in the context of history, which is really important, but sort of moving it forward? But yeah, go ahead please.
Scott Horton
I’m not sure how much time we have. I kind of hoped-
I’m not sure how much time we have. I kind of hoped-
Lex Fridman
unlimited.
unlimited.
Scott Horton
… you’d let me talk about Israel’s role in Iraq War, too, and for that matter in Barack Obama’s dirty war in Syria that led to the rise of the bin Ladenites there. It’s all part of America’s Israel policy. So I don’t want to, I’d rather go back before we go forward. But I also do, I need to go back over so many claims that he’s made here that I’d like to address.
… you’d let me talk about Israel’s role in Iraq War, too, and for that matter in Barack Obama’s dirty war in Syria that led to the rise of the bin Ladenites there. It’s all part of America’s Israel policy. So I don’t want to, I’d rather go back before we go forward. But I also do, I need to go back over so many claims that he’s made here that I’d like to address.
Lex Fridman
So I strongly prefer we go, because there’s so much history, we’re going to lose ourselves in it. There’s not enough hours. We should take certain moments in history that instruct the modern day, but let’s not get lost there if it’s okay.
So I strongly prefer we go, because there’s so much history, we’re going to lose ourselves in it. There’s not enough hours. We should take certain moments in history that instruct the modern day, but let’s not get lost there if it’s okay.
Scott Horton
Sure.
Sure.
Lex Fridman
This is such a fascinating conversation, Iraqi-
This is such a fascinating conversation, Iraqi-
Scott Horton
We talked about the JCPOA and the time between then and now quite a bit already too.
We talked about the JCPOA and the time between then and now quite a bit already too.
Lex Fridman
Yes.
Yes.
Scott Horton
So we’ll be going back over some of that.
So we’ll be going back over some of that.
Lex Fridman
Well, no, I mean modern day, I don’t mean-
Well, no, I mean modern day, I don’t mean-
Scott Horton
You’re talking about this week.
You’re talking about this week.
Lex Fridman
… I mean this week.
… I mean this week.
Scott Horton
Okay.
Okay.
Lex Fridman
A lot of stuff happened this week and a lot of stuff will happen tomorrow and the next week. And everyone wants to know what is going to happen. What is the worst case, what is the best case? Should we be freaking out? What do we need to understand about today? That’s all.
A lot of stuff happened this week and a lot of stuff will happen tomorrow and the next week. And everyone wants to know what is going to happen. What is the worst case, what is the best case? Should we be freaking out? What do we need to understand about today? That’s all.
Scott Horton
All right, so there’s a lot of things to address here. So first of all, something that me and Mr. Dubowitz agree about.
All right, so there’s a lot of things to address here. So first of all, something that me and Mr. Dubowitz agree about.
Mark Dubowitz
Please call me Mark.
Please call me Mark.
Scott Horton
Mark. Something that Mark and I agree about is that there actually is not a threat of an aggressive first strike by Iran. I’m a little surprised to hear him say that, but I’m grateful to hear him say that. It is honest. I would advise you, you may be unfamiliar with this, but I can tell you anyone in America who drives for a living and listens to AM radio have heard claims that Iran was making nuclear weapons probably 50,000 times in the last 25 years. Over and over and over again, we hear this propaganda.
Mark. Something that Mark and I agree about is that there actually is not a threat of an aggressive first strike by Iran. I’m a little surprised to hear him say that, but I’m grateful to hear him say that. It is honest. I would advise you, you may be unfamiliar with this, but I can tell you anyone in America who drives for a living and listens to AM radio have heard claims that Iran was making nuclear weapons probably 50,000 times in the last 25 years. Over and over and over again, we hear this propaganda.
They still don’t have a single atom bomb. The reason why they haven’t been able to cobble together an atom bomb in this 1940s technology is because they have not tried to. Okay, so people can just essentially flog this dead horse, pretend there’s this threat. Oh, he’s going to break out any day now. But here’s the thing about that. As the Ayatollah well knows, George W. Bush, Barack Obama, Donald Trump, Joe Biden, and now Trump again, have all vowed with all sincerity that they would bomb Iran off the face of the earth if they attempted to break out and make a nuclear weapon.
Hillary Clinton, when she ran, said they’d be obliterated from the face of the earth. Barack Obama did an interview with Jeffrey Goldberg in the Atlantic in 2012, called “As President I Don’t Bluff.” And essentially the interview is him begging Jeffrey Goldberg to explain to the Israelis that he really, really, really, really means it, that he’s trying to negotiate, but if the Ayatollah breaks out for a nuke, “I’ll nuke him if I have to.”
Mark Dubowitz
No, they never said that.
No, they never said that.
Scott Horton
He didn’t say-
He didn’t say-
Scott Horton
… out for a nuke. I’ll nuke them if I have to.
… out for a nuke. I’ll nuke them if I have to.
Mark Dubowitz
No, they never said that.
No, they never said that.
Scott Horton
He didn’t say that, but the implication was-
He didn’t say that, but the implication was-
Mark Dubowitz
By the way, no US president ever said they’re going to obliterate Iran. US president said-
By the way, no US president ever said they’re going to obliterate Iran. US president said-
Scott Horton
Hillary Clinton did.
Hillary Clinton did.
Mark Dubowitz
… all options are on the table.
… all options are on the table.
Scott Horton
Anyone can Google her word.
Anyone can Google her word.
Mark Dubowitz
She was never our president.
She was never our president.
Scott Horton
No, I said she was running for president.
No, I said she was running for president.
Mark Dubowitz
But she was never our president. But no US president ever said they’re to obliterate Iran. Nobody ever said they could drop a nuke on Iran.
But she was never our president. But no US president ever said they’re to obliterate Iran. Nobody ever said they could drop a nuke on Iran.
Scott Horton
The implication was clear under W. Bush, Barack Obama, Trump, Biden, and Trump again-
The implication was clear under W. Bush, Barack Obama, Trump, Biden, and Trump again-
Mark Dubowitz
That they would strike Iran’s nuclear facilities.
That they would strike Iran’s nuclear facilities.
Scott Horton
If they broke out toward a nuclear weapon, America would do whatever it took to prevent that from happening.
If they broke out toward a nuclear weapon, America would do whatever it took to prevent that from happening.
Mark Dubowitz
Strike their nuclear facilities.
Strike their nuclear facilities.
Scott Horton
That was always the case there.
That was always the case there.
Mark Dubowitz
But please clarify, just to be accurate, I was talking about nuking Iran.
But please clarify, just to be accurate, I was talking about nuking Iran.
Scott Horton
I’m almost certain no one’s-
I’m almost certain no one’s-
Mark Dubowitz
No one’s talking about bombing Iran to smithereens or obliterating or any of that.
No one’s talking about bombing Iran to smithereens or obliterating or any of that.
Scott Horton
That’s really not true. I mean.
That’s really not true. I mean.
Mark Dubowitz
US presidents-
US presidents-
Scott Horton
Barack Obama changed America’s nuclear posture to say, because it used to say we reserve the right to use a nuclear first strike against any country. He changed that to say, “No, we promise not to use a nuclear first strike against any non-nuclear weapon state except maybe Iran.” That’s true. In fact, that was the threat.
Barack Obama changed America’s nuclear posture to say, because it used to say we reserve the right to use a nuclear first strike against any country. He changed that to say, “No, we promise not to use a nuclear first strike against any non-nuclear weapon state except maybe Iran.” That’s true. In fact, that was the threat.
I got more here. Netanyahu also did an interview with Jeffrey Goldberg back when Ehud Barak was his defense minister in, I think this is also 2012, it might’ve been 2014, where the two of them explained that they agreed with what he said too, that the threat is not of a nuclear first strike. Unlike every AM radio audience has been led to believe that the Ayatollah, as soon as he gets an atom bomb, he will nuke Tel Aviv and he doesn’t care if all of Persia is nuked by Israel’s 200 nukes in response. He’s trying to cause the end of the world by causing a nuclear war and all these things. Well, Netanyahu himself admitted that that’s not true.
Mark Dubowitz
I think it’s really important. I agree with that.
I think it’s really important. I agree with that.
Scott Horton
I’m just agreeing with you so you don’t have to stop me.
I’m just agreeing with you so you don’t have to stop me.
Mark Dubowitz
But I’m agreeing with you.
But I’m agreeing with you.
Scott Horton
I know, but I’m agreeing with you so it’s all right. Netanyahu told Jeffrey Goldberg that he was not concerned about a first strike, that his only concern was that talented young Israelis would move to Miami, that there would be a brain drain. That was his words, a brain drain from Israel. That also then Hezbollah, as this is what he put it, and I agree with this, that conventional forces would have a bit more freedom of action in the region if Iran was sitting on an A-bomb. Neither of them said that there was a threat of an offensive first strike against Israel. I would point out, and I’m skipping ahead to Trump, but I’m skipping back here again in a second because I got more things to refute. But Trump just said the other day when he announced American airstrikes there that this has neutralized a threat to Israel. He did not even pretend that it was a threat to the United States that he had ended in doing so.
I know, but I’m agreeing with you so it’s all right. Netanyahu told Jeffrey Goldberg that he was not concerned about a first strike, that his only concern was that talented young Israelis would move to Miami, that there would be a brain drain. That was his words, a brain drain from Israel. That also then Hezbollah, as this is what he put it, and I agree with this, that conventional forces would have a bit more freedom of action in the region if Iran was sitting on an A-bomb. Neither of them said that there was a threat of an offensive first strike against Israel. I would point out, and I’m skipping ahead to Trump, but I’m skipping back here again in a second because I got more things to refute. But Trump just said the other day when he announced American airstrikes there that this has neutralized a threat to Israel. He did not even pretend that it was a threat to the United States that he had ended in doing so.
Mark Dubowitz
Actually, he said exactly that.
Actually, he said exactly that.
Scott Horton
Well, actually you can Google the state [inaudible 01:35:47].
Well, actually you can Google the state [inaudible 01:35:47].
Mark Dubowitz
He actually said, president Trump has said that an Iranian nuclear weapon is a threat to the United States. [inaudible 01:35:53]. He said that over and over again.
He actually said, president Trump has said that an Iranian nuclear weapon is a threat to the United States. [inaudible 01:35:53]. He said that over and over again.
Scott Horton
Not in the state [inaudible 01:35:53]. He announced his great victory in bombing, which is what I just said, right?
Not in the state [inaudible 01:35:53]. He announced his great victory in bombing, which is what I just said, right?
Mark Dubowitz
President Trump sends out 20 Truth posts a day. Let’s look at the many, many, many things that he said.
President Trump sends out 20 Truth posts a day. Let’s look at the many, many, many things that he said.
Scott Horton
Then we have this whole thing about how I always believe Hezbollah, and I always believe the Ayatollah, when in fact, I did not quote the Ayatollah and I did not quote Hezbollah on anything. I did quote Osama bin Laden taking responsibility for the Khobar Towers attack, which he shared that with Abdul Bari Atwan. Anyone can read it. He agrees with Michael Scheuer, the former chief of the CIA’s Bin Laden unit, who also said that it was a hoax, that it was Iranian-backed Saudi Hezbollah that did that attack. Again, who did they attack? They killed 19 American airmen, which was the number one complaint of al-Qaeda against the United States that we had air forces and Army stationed in Saudi Arabia in order to bomb and blockade Iraq, which again, and this was the thing that you had asked about before, was part of the dual containment policy in the 1990s.
Then we have this whole thing about how I always believe Hezbollah, and I always believe the Ayatollah, when in fact, I did not quote the Ayatollah and I did not quote Hezbollah on anything. I did quote Osama bin Laden taking responsibility for the Khobar Towers attack, which he shared that with Abdul Bari Atwan. Anyone can read it. He agrees with Michael Scheuer, the former chief of the CIA’s Bin Laden unit, who also said that it was a hoax, that it was Iranian-backed Saudi Hezbollah that did that attack. Again, who did they attack? They killed 19 American airmen, which was the number one complaint of al-Qaeda against the United States that we had air forces and Army stationed in Saudi Arabia in order to bomb and blockade Iraq, which again, and this was the thing that you had asked about before, was part of the dual containment policy in the 1990s.
Mark Dubowitz
Scott, you’re saying-
Scott, you’re saying-
Scott Horton
Goddamn, man.
Goddamn, man.
Lex Fridman
No, wait a second.
No, wait a second.
Mark Dubowitz
All right.
All right.
Lex Fridman
Let Scott talk.
Let Scott talk.
Scott Horton
The fact is you’re sitting here saying that I trust them all so much. Well, what do you think, Lex, what do you think Ronald Reagan meant by trust but verify? He meant don’t trust but be polite. That’s what he meant. Verify means we know with sensors and cameras and inspections what’s going on. No one can find a quote that I said here about how we can trust the Ayatollah because he promised this or that or the other thing. I didn’t say that. What I’m talking about is the process. They sign agreements and then we have inspectors to verify their claims. As anyone can search at IAEA.org, they have continued to verify the non-diversion of nuclear material in Iran to any military or other special purpose.
The fact is you’re sitting here saying that I trust them all so much. Well, what do you think, Lex, what do you think Ronald Reagan meant by trust but verify? He meant don’t trust but be polite. That’s what he meant. Verify means we know with sensors and cameras and inspections what’s going on. No one can find a quote that I said here about how we can trust the Ayatollah because he promised this or that or the other thing. I didn’t say that. What I’m talking about is the process. They sign agreements and then we have inspectors to verify their claims. As anyone can search at IAEA.org, they have continued to verify the non-diversion of nuclear material in Iran to any military or other special purpose.
Mark Dubowitz
The IAEA has now said that they actually can no longer do this before this war started.
The IAEA has now said that they actually can no longer do this before this war started.
Scott Horton
Because America withdrew from the-
Because America withdrew from the-
Mark Dubowitz
I mean, at the end of the day, let’s just be factually accurate. The fact of the matter is anybody who knows anything about nuclear weapons program knows that we do not have 100% certainty on anything. I mean, Scott is making claims here that Mossad is fabricating the CIA is fabricating, everybody’s fabricating, but he’s also assuming that we have 100% certainty about what Iran is doing inside a country more than two and a half times the size of Texas.
I mean, at the end of the day, let’s just be factually accurate. The fact of the matter is anybody who knows anything about nuclear weapons program knows that we do not have 100% certainty on anything. I mean, Scott is making claims here that Mossad is fabricating the CIA is fabricating, everybody’s fabricating, but he’s also assuming that we have 100% certainty about what Iran is doing inside a country more than two and a half times the size of Texas.
As Scott rightly said, mountainous, incredibly difficult to monitor, incredibly difficult to surveil. They built underground facilities at Natanz and Fordow without our knowledge. They didn’t disclose it. We finally found out about it.
Scott Horton
[inaudible 01:38:23] refuted that an hour ago. You can rewind it.
[inaudible 01:38:23] refuted that an hour ago. You can rewind it.
Mark Dubowitz
Anyone can refute it, but the fact of matter is they did it. It’s there.
Anyone can refute it, but the fact of matter is they did it. It’s there.
Scott Horton
We know the facilities are there. By the way, you keep saying that I just say lies, lies, lies. But I have explained exactly what I meant. I’ve cited my sources and I haven’t just sat here and said, “Uh huh, that’s a lie,” because I don’t like it. I sat here and explained to you exactly how I know who was building those EFP bombs in Iraq, exactly how I know what the IAEA said about the state of inspections here, or what Robert Kelly told the Christian Science Monitor about Parchin and the rest and on and on and on. I don’t sit here like I’m just saying, “Well, that’s not true because I like it,” when in fact I’m explaining exactly why your claims are not true, which they’re not. Just like saying that I said I trust Hezbollah when anyone can rewind that and break their finger trying to find the part where I said that because I never did.
We know the facilities are there. By the way, you keep saying that I just say lies, lies, lies. But I have explained exactly what I meant. I’ve cited my sources and I haven’t just sat here and said, “Uh huh, that’s a lie,” because I don’t like it. I sat here and explained to you exactly how I know who was building those EFP bombs in Iraq, exactly how I know what the IAEA said about the state of inspections here, or what Robert Kelly told the Christian Science Monitor about Parchin and the rest and on and on and on. I don’t sit here like I’m just saying, “Well, that’s not true because I like it,” when in fact I’m explaining exactly why your claims are not true, which they’re not. Just like saying that I said I trust Hezbollah when anyone can rewind that and break their finger trying to find the part where I said that because I never did.
Now you brought up the DPRK. Well, in 2002, when George W. Bush said that they were part of the axis of evil, they were part of the NPT and they had a safeguards agreement with the IAEA. Yes, they had bought centrifuge equipment from aqcon, but they had not used it. It was John Bolton’s lie that they were enriching uranium to weapons grade and violating the agreed framework. John Bolton and George W. Bush in the fall of ’02 then canceled the agreed framework deal that Bill Clinton had struck based on this misinformation. They added new sanctions and they launched what was called the Proliferation Security Initiative, which was an illegal and unilateral claim of the authority to seize any North Korean ship on the high seas if they suspected it of proliferation. Then they added them to the Nuclear Posture Review, putting them on the short list for a potential first strike.
It was only then in the end of 2002 after these, what, four or five major things that the Bush government did to antagonize them that North Korea then announced that they were going to withdraw from the treaty and begin making nuclear weapons, which is what they did. Then as we know from all the scientists say every time that they’ve tested a nuclear bomb, it’s been a plutonium bomb and never tested, never once used a uranium bomb. There’s no evidence that John Bolton’s claims there that they were enriching uranium were ever true. They had Sig Hecker who’s this important American nuclear expert, went and toured their facilities and all of these things. We know quite a bit about what they have. It was simply Bush pushed North Korea to nukes, as Gordon Prather wrote in his last great article for us at Antiwar.com. It was through this exact kind of belligerence when we already had a deal that we could have continued to work with them on-
Mark Dubowitz
But Scott, this is the constant theme in your analysis. Again, want to look at it, maybe steel man it, maybe challenge it, but the constant theme is the United States and Israel and the West, we constantly aggress against North Korea, against Iran, against Russia, against these countries, and they respond to us. They respond to us in ways that they build nuclear weapons programs that are peaceful, but we force them to develop nuclear weapons. They don’t actually mean to kill us.
But Scott, this is the constant theme in your analysis. Again, want to look at it, maybe steel man it, maybe challenge it, but the constant theme is the United States and Israel and the West, we constantly aggress against North Korea, against Iran, against Russia, against these countries, and they respond to us. They respond to us in ways that they build nuclear weapons programs that are peaceful, but we force them to develop nuclear weapons. They don’t actually mean to kill us.
Scott Horton
Look, it’s not right that I’m saying everything anyone does-
Look, it’s not right that I’m saying everything anyone does-
Mark Dubowitz
Can I finish?
Can I finish?
Scott Horton
No.
No.
Mark Dubowitz
[inaudible 01:41:38].
[inaudible 01:41:38].
Scott Horton
You’re saying that everything I say is that everyone anyone else does is the reaction, but that’s not true. The subject here is what has America done to make things worse rather than better?
You’re saying that everything I say is that everyone anyone else does is the reaction, but that’s not true. The subject here is what has America done to make things worse rather than better?
Mark Dubowitz
That’s not the topic here.
That’s not the topic here.
Scott Horton
I’m citing provocations. That doesn’t mean I’m saying that everything that happens in the world is only an equal and opposite reaction to an American provocation, and you can’t find me saying that. You can only somehow try to paraphrase me claiming that somehow or something like that. But that’s what’s at issue is as I said, for example, there’s the Reuters story that says that after Israel did the sabotage, which they bragged about at Natanz in April of ’21, that was when they started enriching up to 60%. now I’m saying that, and I’m just denying the agency of the Iranians or anything except that, no, I’m not. I’m just citing the Reuters news agency saying that this proactive action by Israel caused a negative reaction by your own lights, a very negative reaction in their beginning to again enrich up to 60% uranium.
I’m citing provocations. That doesn’t mean I’m saying that everything that happens in the world is only an equal and opposite reaction to an American provocation, and you can’t find me saying that. You can only somehow try to paraphrase me claiming that somehow or something like that. But that’s what’s at issue is as I said, for example, there’s the Reuters story that says that after Israel did the sabotage, which they bragged about at Natanz in April of ’21, that was when they started enriching up to 60%. now I’m saying that, and I’m just denying the agency of the Iranians or anything except that, no, I’m not. I’m just citing the Reuters news agency saying that this proactive action by Israel caused a negative reaction by your own lights, a very negative reaction in their beginning to again enrich up to 60% uranium.
That means I’m just spinning for the Ayatollah or I believe that no one ever does anything except in reaction to Israel and America, except that I’m just citing specific examples of where that’s exactly the case. Donald Trump withdrew from the deal. He could have stayed in the deal and tried hard to make it better. He didn’t.
Mark Dubowitz
He did try.
He did try.
Scott Horton
The US government has made numerous mistakes in many of these countries.
The US government has made numerous mistakes in many of these countries.
Mark Dubowitz
If this podcast was all about the American government and the mistakes that’s made, then we’d spend four hours on it.
If this podcast was all about the American government and the mistakes that’s made, then we’d spend four hours on it.
Best case and worst case near-term future
Scott Horton
It’s a huge [inaudible 01:43:06].
It’s a huge [inaudible 01:43:06].
Lex Fridman
Can we please-
Can we please-
Mark Dubowitz
Get to today.
Get to today.
Lex Fridman
… use everything we just talked about and talk about today, what is maybe Mark, can you lay out what is the best case and the worst case in Scotland? Lay out the best case and the worst case that can happen now.
… use everything we just talked about and talk about today, what is maybe Mark, can you lay out what is the best case and the worst case in Scotland? Lay out the best case and the worst case that can happen now.
Mark Dubowitz
Lex, I think the best case, and something I’ve advocated for, I’ve been working on this for 22 years, is that the Iranians return to negotiations at Oman, sit down with the United States and conclude an agreement that peacefully and permanently and fully dismantles their nuclear program. They agree to that, which means they shut down any remaining facilities. They give up all the remaining centrifuges and enriched material that they could use to develop nuclear weapons. They let the IAEA in in order to supervise this. They actually commit to not rebuilding this nuclear program. We commit, as we’ve done with 23 other countries, to helping them provide civilian nuclear energy. Because it seems to me a little fanciful that Khamenei would build a civilian nuclear program under 80 meters of concrete surrounded by rock and take all the risks he’s taken. By the way, he faces a risk to his regime, spent a half a trillion dollars to do this when it makes no commercial sense.
Lex, I think the best case, and something I’ve advocated for, I’ve been working on this for 22 years, is that the Iranians return to negotiations at Oman, sit down with the United States and conclude an agreement that peacefully and permanently and fully dismantles their nuclear program. They agree to that, which means they shut down any remaining facilities. They give up all the remaining centrifuges and enriched material that they could use to develop nuclear weapons. They let the IAEA in in order to supervise this. They actually commit to not rebuilding this nuclear program. We commit, as we’ve done with 23 other countries, to helping them provide civilian nuclear energy. Because it seems to me a little fanciful that Khamenei would build a civilian nuclear program under 80 meters of concrete surrounded by rock and take all the risks he’s taken. By the way, he faces a risk to his regime, spent a half a trillion dollars to do this when it makes no commercial sense.
But let’s take him at his word that he wants civilian nuclear energy. Let’s build it for him. As long as there’s no enrichment or reprocessing, gives him the key capabilities that he could if he decides to build nuclear weapons. That seems to me a thoughtful approach. I think Scott would probably agree with it. Proliferation proof he can’t build nuclear weapons, and we can do this all peacefully. That’s my preference.
Lex Fridman
What can Trump do to help make that happen?
What can Trump do to help make that happen?
Mark Dubowitz
I think what he can do is he can say to the Iranians, “Look, I made you that offer last time. You rejected it. Now that offer’s no longer on the table because that offer gave you enrichment. Now temporarily, but I now see the game that you would’ve played when I left office, to turn that enrichment capability into nuclear weapons. That deal’s off the table, but here’s the deal that’s on the table. It’s a one-page deal. You give up your nuclear capabilities, we help you build civilian nuclear energy.” I think that’s best case.
I think what he can do is he can say to the Iranians, “Look, I made you that offer last time. You rejected it. Now that offer’s no longer on the table because that offer gave you enrichment. Now temporarily, but I now see the game that you would’ve played when I left office, to turn that enrichment capability into nuclear weapons. That deal’s off the table, but here’s the deal that’s on the table. It’s a one-page deal. You give up your nuclear capabilities, we help you build civilian nuclear energy.” I think that’s best case.
I think worst case is that the Iranians do what they’ve unfortunately been doing over and over again and rejecting these deals and holding firm that they want to retain this enrichment capability. The only reason they want to retain enrichment capability is the option to develop nuclear weapons. Otherwise, they can have civilian energy. Tomorrow makes much more commercial sense to do that, and the entire international community would help them and pay for that.
I worry that they’re going to just remain intransigent at the negotiating table. I think if they do that, then what I worry that they’re going to do is whatever remaining capabilities they have left, they’ll bide their time. They’ll wait for the opportunity. Maybe it’s not now. Maybe it’s when Trump’s gone, and they will rebuild this nuclear weapons program. They’ll be then inviting further strikes, further war and further suffering. I worry that that is the worst case.
By the way, it’s part of that worst case in retaining the capabilities, the extra worst case is they take those capabilities and they go for a nuclear bomb. Now, if Scott’s right and the regime has never had any desire for a nuclear bomb, then we don’t have to worry about that. According to Scott, all of this has been fabricated. All of this has been result of US and Israeli intelligence mendacity, and we don’t have to worry about a nuclear weapon. I personally worry about it knowing this regime, looking at two and a half decades of nuclear deception. I worry that they want to retain those capabilities and at time of their choosing, develop a nuclear bomb.
I think if you’re responsible and you’re trying to think through the various scenarios, you’ve got to consider an Iranian nuclear weapons breakout as a possibility and you’ve got to try to mitigate that. You either mitigate that at the negotiating table through a full dismantlement deal or, and it’s the least good option for sure is you’re going to have to go back in there, either the Israelis and-or the United States, and you’re going to have to continue to use both covert action and air power to destroy those capabilities.
Lex Fridman
Can I just even dig in further on the worst case? Do you think it’s possible to have where US gets pulled into a feet on the ground full-on war with Iran?
Can I just even dig in further on the worst case? Do you think it’s possible to have where US gets pulled into a feet on the ground full-on war with Iran?
Mark Dubowitz
I think one must never dismiss possibilities because as I said, you’ve got to plan against worst case options, and I think-
I think one must never dismiss possibilities because as I said, you’ve got to plan against worst case options, and I think-
Scott Horton
That’s what the Israel lobby has in store for you guys. American lives mean nothing to the Israel-firsters. They don’t care that Israel motivated September 11th and killed 3,000 of our guys. I was at the airport yesterday, had a big American flag with all the red and white stripes made out of the names of the dead of September 11th who were killed by people motivated by Israel’s crimes in Palestine and in Lebanon and enforcing Bill Clinton’s dual containment policy from Saudi Arabia. They don’t care about that. They don’t care about the 4,500 Americans who died in Iraq War Two or the million something people who died in Iraq War Two, the half a million in Syria as long as the Shiite Crescent is somehow is limited. They’ll even celebrate openly.
That’s what the Israel lobby has in store for you guys. American lives mean nothing to the Israel-firsters. They don’t care that Israel motivated September 11th and killed 3,000 of our guys. I was at the airport yesterday, had a big American flag with all the red and white stripes made out of the names of the dead of September 11th who were killed by people motivated by Israel’s crimes in Palestine and in Lebanon and enforcing Bill Clinton’s dual containment policy from Saudi Arabia. They don’t care about that. They don’t care about the 4,500 Americans who died in Iraq War Two or the million something people who died in Iraq War Two, the half a million in Syria as long as the Shiite Crescent is somehow is limited. They’ll even celebrate openly.
I don’t know about him, but I know Ben Shapiro, many other leaders of the Israel lobby in America celebrated the overthrow of Bashar al-Assad in Syria by Abu Mohammed al-Jilani, the leader of al-Qaeda in Iraq in Syria. Why? Because he’s not a Shiite. He’s not an Alawite friends with the Shiites and friends with Iran and friends with Hezbollah. That’s good for Israel even though it’s the worst thing that you could possibly imagine for the people of the United States of America, those sworn loyal to Osama Bin Laden and Ayman al-Zawahiri ruling Damascus now, their own ISIS caliphate in our era.
This is why they always pretend. They go, over there, the Muslims, the terrorists, greatest state sponsors of terrorism. It’s al-Qaeda that threatens the United States of America. It wasn’t Hezbollah that knocked those towers down. They have us siding with our enemies against their enemies. As you just said, well, I guess time will tell, Lex, whether we’re going to have to drop the 82nd Airborne in there, whether Americans are going to have to do a regime change in Tehran.
Mark Dubowitz
I wish you’d listened and not put words in my mouth.
I wish you’d listened and not put words in my mouth.
Lex Fridman
I heard what he said. I forced him kind of to say what the worst case possibility of a full-on invasion as a thought experiment, and you can let him finish that as opposed to making the accusations. Let’s just minimize both ways accusations, please. Just talk about the ideas. That’s the most charitable interpretation of those ideas.
I heard what he said. I forced him kind of to say what the worst case possibility of a full-on invasion as a thought experiment, and you can let him finish that as opposed to making the accusations. Let’s just minimize both ways accusations, please. Just talk about the ideas. That’s the most charitable interpretation of those ideas.
Scott Horton
I’m from the United States of America, unlike him, and I care about the future of this country, unlike him, who’s here to serve a foreign power and make their case at our expense.
I’m from the United States of America, unlike him, and I care about the future of this country, unlike him, who’s here to serve a foreign power and make their case at our expense.
Lex Fridman
Scott, and next you’re going to say that I’m un-American.
Scott, and next you’re going to say that I’m un-American.
Mark Dubowitz
Because an immigrant too.
Because an immigrant too.
Scott Horton
You’re just hosting the show. I don’t know. It seems like you’re trying to be fair.
You’re just hosting the show. I don’t know. It seems like you’re trying to be fair.
Lex Fridman
No, it’s not about fair.
No, it’s not about fair.
Scott Horton
He has an agenda.
He has an agenda.
Lex Fridman
Stop. Stop.
Stop. Stop.
Scott Horton
He’s from the FDD.
He’s from the FDD.
Lex Fridman
Stop. It’s not about being fair. The implication here is somebody who’s un-American because where they’re from.
Stop. It’s not about being fair. The implication here is somebody who’s un-American because where they’re from.
Scott Horton
I didn’t say anyone who’s not from here. I’m talking about him.
I didn’t say anyone who’s not from here. I’m talking about him.
Lex Fridman
I think that’s a really deeply disrespectful accusation.
I think that’s a really deeply disrespectful accusation.
Scott Horton
Can I ask you, does it bother you that when Naftali Bennett bombed a UN shelter full of 106 women and children in Qana, Lebanon in 1996, that that’s what motivated Mohamed Atta and Ramzi bin al-Shibh to join Al-Qaeda and attack our towers?
Can I ask you, does it bother you that when Naftali Bennett bombed a UN shelter full of 106 women and children in Qana, Lebanon in 1996, that that’s what motivated Mohamed Atta and Ramzi bin al-Shibh to join Al-Qaeda and attack our towers?
Mark Dubowitz
Scott, you know what bothers me? I came to this country 22 years ago. I became a proud US citizen 10 years ago. I’m proud to be an American and accusing me or Lex or any immigrants to this country of not being un-American is deeply offensive. Let me answer Lex’s question. Lex, let’s get back to your question because I think it’s an important question. What are the chain of events that could lead 500,000 mechanized US troops to have to invade Iran, which would be a disaster? That’s something we never want to see again. That’s one of the lessons of Iraq.
Scott, you know what bothers me? I came to this country 22 years ago. I became a proud US citizen 10 years ago. I’m proud to be an American and accusing me or Lex or any immigrants to this country of not being un-American is deeply offensive. Let me answer Lex’s question. Lex, let’s get back to your question because I think it’s an important question. What are the chain of events that could lead 500,000 mechanized US troops to have to invade Iran, which would be a disaster? That’s something we never want to see again. That’s one of the lessons of Iraq.
I think Scott has done a good job over the years in demonstrating that we don’t want to do that again. Is there such a scenario? I think one must never rule it out because there is a scenario, for example, where the regime collapses and there’s chaos inside Iran. Not suggesting that’ll happen. There are a whole bunch of scenarios maybe we should talk about with respect to the collapse of the regime.
But you could see a scenario where the United States would have to go in there in order to try to secure military and nuclear and missile assets so that it doesn’t end up the hands of warring factional and ethnic groups that Scott referred to. Because again, as he’s rightly pointed out, Iran is not Persia.
Scott Horton
Can’t the IDF handle it?
Can’t the IDF handle it?
Mark Dubowitz
Can I just finish just who can handle it, who cannot handle it? I think that it’s a potential scenario, which is why I don’t think anybody should be advocating for a US decapitation of the regime in Iran. I have long been on record of supporting the Iranian people, providing support to the Iranian people, to at one point take back their country and take back their flag. It’s very much sort of Reagan’s strategy that Reagan ran in the Cold War of maximum pressure on the regime, maximum support for anti-Soviet dissidents. While by the way, he was negotiating arms control agreements for the Soviet Union in order to try to reduce the number of nuclear tipped ICBMs that both countries had pointed at each other. I think the Reagan strategy of providing support to the people is a far better strategy for trying to get transition, leadership transition, government transition inside Iran. But I think the scenario of decapitation strikes, killing Khamenei, taking out the entire government could potentially lead to that scenario. I think we have to be conscious of that. We have to guard against that. I think that’s important.
Can I just finish just who can handle it, who cannot handle it? I think that it’s a potential scenario, which is why I don’t think anybody should be advocating for a US decapitation of the regime in Iran. I have long been on record of supporting the Iranian people, providing support to the Iranian people, to at one point take back their country and take back their flag. It’s very much sort of Reagan’s strategy that Reagan ran in the Cold War of maximum pressure on the regime, maximum support for anti-Soviet dissidents. While by the way, he was negotiating arms control agreements for the Soviet Union in order to try to reduce the number of nuclear tipped ICBMs that both countries had pointed at each other. I think the Reagan strategy of providing support to the people is a far better strategy for trying to get transition, leadership transition, government transition inside Iran. But I think the scenario of decapitation strikes, killing Khamenei, taking out the entire government could potentially lead to that scenario. I think we have to be conscious of that. We have to guard against that. I think that’s important.
I think Scott’s right. I mean if a scenario happened like that, I mean I think the Israelis have demonstrated extraordinary capabilities and they could go in there and they could secure loose nuclear materials that you would be worried, could be fashion for nuclear weapons. Scott doesn’t seem to worry about these materials. I worry about these materials and capabilities in the hands of anybody because they’re all capabilities that just the physics of it, you can produce nuclear weapons.
Best case scenario, negotiation. We fully dismantle their program in Oman. Worst case scenario is having to return for continued military strikes that continue to escalate the situation. Worse situation is some kind of decapitation strike that collapses the regime and causes chaos. There are a whole bunch of other scenarios we can talk about that are embedded in that, but I think if you’re a responsible person and a responsible analyst, and certainly if you’re a responsible policymaker, you got to be planning for all of these scenarios and more.
Lex Fridman
Scott, what do you think is the best case and the worst case here?
Scott, what do you think is the best case and the worst case here?
Scott Horton
Well, the best case scenario is that we quit right now and that Trump figures out a way to reorder some paragraphs and get back in something like the JCPOA, which was also signed with the rest of the UN security council power.
Well, the best case scenario is that we quit right now and that Trump figures out a way to reorder some paragraphs and get back in something like the JCPOA, which was also signed with the rest of the UN security council power.
Lex Fridman
Can I ask you like JCPOA is a pretty good approximation of what would be a good deal?
Can I ask you like JCPOA is a pretty good approximation of what would be a good deal?
Scott Horton
Pretty good. It could have been better, as I said at the beginning. Trump could have gone in there and tried to negotiate a better result with the sunset provisions on some of those things. But the concept that America is just going to insist on zero enrichment, zero nuclear program whatsoever when they have the unalienable “in the nonproliferation treaty to civilian nuclear material and a civilian program”, it’s a poison pill. It’s meant to fail just like it was a poison pill meant to destroy the tox here, good enough to start a war. Again, as I quoted from earlier, he said on TV last week, “Well, America has to take out Fordo now because now they’re more likely to break out towards a nuke.” I think that’s exactly right. There still is, or there’s strong reason to be skeptical, including Israeli and American officials told the New York Times that they thought that the damage was quite incomplete.
Pretty good. It could have been better, as I said at the beginning. Trump could have gone in there and tried to negotiate a better result with the sunset provisions on some of those things. But the concept that America is just going to insist on zero enrichment, zero nuclear program whatsoever when they have the unalienable “in the nonproliferation treaty to civilian nuclear material and a civilian program”, it’s a poison pill. It’s meant to fail just like it was a poison pill meant to destroy the tox here, good enough to start a war. Again, as I quoted from earlier, he said on TV last week, “Well, America has to take out Fordo now because now they’re more likely to break out towards a nuke.” I think that’s exactly right. There still is, or there’s strong reason to be skeptical, including Israeli and American officials told the New York Times that they thought that the damage was quite incomplete.
Mark Dubowitz
The IAEA just came out recently just point of fact, sort of interesting. We’ll see on the battle damage assessment, but they actually think the facility was destroyed and that the sensitive centrifuges were destroyed. Just interesting for the viewers. It may be premature.
The IAEA just came out recently just point of fact, sort of interesting. We’ll see on the battle damage assessment, but they actually think the facility was destroyed and that the sensitive centrifuges were destroyed. Just interesting for the viewers. It may be premature.
Scott Horton
All the uranium mines, and all the aluminum smelters so that they can’t make any more centrifuges.
All the uranium mines, and all the aluminum smelters so that they can’t make any more centrifuges.
Mark Dubowitz
Interesting assessment.
Interesting assessment.
Scott Horton
They know how to make centrifuges. At this point, this is why government doesn’t work. They make matters worse and create more work for themselves and make things worse and worse and worse. We can make the same criticism about Russia’s invasion of Ukraine making matters worse for themselves and causing them to have to escalate even further.
They know how to make centrifuges. At this point, this is why government doesn’t work. They make matters worse and create more work for themselves and make things worse and worse and worse. We can make the same criticism about Russia’s invasion of Ukraine making matters worse for themselves and causing them to have to escalate even further.
Now, America’s in the situation where the danger that Iran will now break out to a nuke is so heightened that now we’re talking about, well, maybe we’ll have to do a full regime change. I appreciate you, Mark, saying that we should not kill the Ayatollah, but Benjamin Netanyahu says we should. He said just the other day that if we get rid of the Ayatollah, that will solve all the problems, which is just crazy to think that they have, Israeli officials have been tweeting out pictures of and palling around with the son of the Shah, talking about reinstalling his royal majesty’s monarchy, sock puppet dictatorship. That’s taking back Iran for the people of Iran, giving them over to a bunch of foreign-backed exiles?
Was that what Trump meant when he gave that speech in Qatar saying, “We don’t believe in neoconservatism and spreading democracy anymore.” He’s just setting up because we’re going to try to reinstall a monarch?
Lex Fridman
Can you go into the analysis of best case and worst case? You laid out the best case. What’s the worst case would be feet on the ground?
Can you go into the analysis of best case and worst case? You laid out the best case. What’s the worst case would be feet on the ground?
Scott Horton
Worst case is this.
Worst case is this.
Mark Dubowitz
What was the best case? I missed it. The best case is a deal?
What was the best case? I missed it. The best case is a deal?
Scott Horton
Yeah, that we quit now.
Yeah, that we quit now.
Mark Dubowitz
The deal.
The deal.
Lex Fridman
Basically, you guys agree on the best case.
Basically, you guys agree on the best case.
Scott Horton
We respect their right to a civilian nuclear program and try to negotiate, as I said, back into something like the JCPOA, which again had them exporting their entire stockpile of uranium out of the country.
We respect their right to a civilian nuclear program and try to negotiate, as I said, back into something like the JCPOA, which again had them exporting their entire stockpile of uranium out of the country.
Lex Fridman
[inaudible 01:57:31].
[inaudible 01:57:31].
Scott Horton
He wants no nuclear program whatsoever.
He wants no nuclear program whatsoever.
Mark Dubowitz
No, no, that’s not what I said. That’s not what I said. Be careful what I said.
No, no, that’s not what I said. That’s not what I said. Be careful what I said.
Scott Horton
Well, no enrichment capabilities [inaudible 01:57:38].
Well, no enrichment capabilities [inaudible 01:57:38].
Mark Dubowitz
[inaudible 01:57:38].
[inaudible 01:57:38].
Scott Horton
[inaudible 01:57:38] entire dependence on other countries to supply their fuel needs.
[inaudible 01:57:38] entire dependence on other countries to supply their fuel needs.
Lex Fridman
Can you teach me the difference when we [inaudible 01:57:43]?
Can you teach me the difference when we [inaudible 01:57:43]?
Mark Dubowitz
Let me just step back from this because we agree on some and we disagree on a major issue. Then if we both agree Iran deserves a civilian nuclear program-
Let me just step back from this because we agree on some and we disagree on a major issue. Then if we both agree Iran deserves a civilian nuclear program-
Scott Horton
The point is the Ayatollah is never going to give in on enrichment.
The point is the Ayatollah is never going to give in on enrichment.
Mark Dubowitz
Can I just-
Can I just-
Scott Horton
We know that. That’s a premise for our whole discussion here. Therefore, what he’s saying is we’re going to have to keep escalating the war until the mission is accomplished.
We know that. That’s a premise for our whole discussion here. Therefore, what he’s saying is we’re going to have to keep escalating the war until the mission is accomplished.
Mark Dubowitz
Not sure I said that. Scott, I think it’s, again, important that the distinction here. We both agree that Iran deserves a civilian nuclear program. 23 countries have civilian nuclear programs and they don’t have enrichment and they don’t have reprocessing. Where we differ is, I don’t think Iran should have the Iran standard. I think that Iran should agree to the gold standard that 23 US allies have agreed to. Have civilian nuclear program, but you don’t get to keep the key enrichment and reprocessing capabilities that you need to develop nuclear weapons.
Not sure I said that. Scott, I think it’s, again, important that the distinction here. We both agree that Iran deserves a civilian nuclear program. 23 countries have civilian nuclear programs and they don’t have enrichment and they don’t have reprocessing. Where we differ is, I don’t think Iran should have the Iran standard. I think that Iran should agree to the gold standard that 23 US allies have agreed to. Have civilian nuclear program, but you don’t get to keep the key enrichment and reprocessing capabilities that you need to develop nuclear weapons.
Scott Horton
Do you think that Bill Clinton should have just let the Chinese sell them the light water reactor that they wanted to back in the ’90s?
Do you think that Bill Clinton should have just let the Chinese sell them the light water reactor that they wanted to back in the ’90s?
Mark Dubowitz
America, of course, allowed Russia to sell them a heavy water reactor for the same purpose. But I agree with Scott that I think one of the ways out of this is, yes, whether it’s the Chinese or preferably as an American, I prefer the Americans actually sell reactors to the Iranians, a great nuclear industry in this country. Let’s do that. But if they can’t, the South Koreans can, the Russians can, the Chinese can. I wouldn’t want to have significant Russian and Chinese influence in Iran, so better that it’d be a western country that does it. Nevertheless, provide those reactors. They’re proliferation proof. There’s no enrichment and no reprocessing. You buy your fuel rods from abroad, you put them in the reactors, you power the Iranian electrical grid, which is in terrible shape because the Ayatollah has spent a half a trillion dollars trying to build nuclear weapons. They’re not trying to provide electricity for these people.
America, of course, allowed Russia to sell them a heavy water reactor for the same purpose. But I agree with Scott that I think one of the ways out of this is, yes, whether it’s the Chinese or preferably as an American, I prefer the Americans actually sell reactors to the Iranians, a great nuclear industry in this country. Let’s do that. But if they can’t, the South Koreans can, the Russians can, the Chinese can. I wouldn’t want to have significant Russian and Chinese influence in Iran, so better that it’d be a western country that does it. Nevertheless, provide those reactors. They’re proliferation proof. There’s no enrichment and no reprocessing. You buy your fuel rods from abroad, you put them in the reactors, you power the Iranian electrical grid, which is in terrible shape because the Ayatollah has spent a half a trillion dollars trying to build nuclear weapons. They’re not trying to provide electricity for these people.
Let’s help him. Let’s help his people get electricity. But the key difference in our argument, and it’s a fundamental difference, Scott’s right, the key difference is I do not want to give this regime enrichment or reprocessing because they have shown over time, for whatever reason, whether you believe it’s they intended to or we were lying about it or we broke them, it doesn’t matter. What they have shown over the past number of years is they have gone up from 3.67% enriched uranium for civilian purpose all the way up to 60%, which is 99% of what you need for weapons grade. Since we’ve seen them do it before, we don’t want to see them do it again. No enrichment, full dismantlement, full deal. Then there’s a peaceful resolution to- What I worry about is positions that are taken that undermine President Trump’s negotiating leverage in Oman.
Scott Horton
Can I ask you, you were saying you supported the JCPOA, you were opposed to it.
Can I ask you, you were saying you supported the JCPOA, you were opposed to it.
Mark Dubowitz
No, no, I was opposed to JCPOA.
No, no, I was opposed to JCPOA.
Scott Horton
That’s right. You were opposed to withdrawing from it?
That’s right. You were opposed to withdrawing from it?
Mark Dubowitz
Yeah.
Yeah.
Scott Horton
Don’t you think that Trump could have gone over there and negotiate to make it better? Would you agree that it was a huge mistake to withdraw that because they were, as we agreed, shipping out all of their enriched uranium to only be brought back in a form that they could not use to make nukes. The scientists had decided that if they kicked all the inspectors out and beat their chests and started making a nuke, it would take them a full year to have enough weapons grade uranium for a single gun type nuke under the JCPOA.
Don’t you think that Trump could have gone over there and negotiate to make it better? Would you agree that it was a huge mistake to withdraw that because they were, as we agreed, shipping out all of their enriched uranium to only be brought back in a form that they could not use to make nukes. The scientists had decided that if they kicked all the inspectors out and beat their chests and started making a nuke, it would take them a full year to have enough weapons grade uranium for a single gun type nuke under the JCPOA.
Mark Dubowitz
Let me ask you a question.
Let me ask you a question.
Scott Horton
Yeah.
Yeah.
Mark Dubowitz
Because you’re right. I mean, I’m glad you’ve pointed out because I tried to take a nuanced position during the JCPOA debate, and I got hammered by the left and I got hammered by the right. The left hammered me because I criticized the JCPOA because it’s fundamental flaw was twofold. One, it gave Iran enrichment capability that would expand over time as the restrictions sunset it. Number two, the sunsets were going to kick in and Iran would emerge with this industrial size program, which we would not be able to stop. Now, the nuanced position, which I got hammered on by the right, was I said, “Go negotiate with the Europeans. Agree on a common transatlantic position to approach the Iranians and say, ‘Look, that deal that we did back in 2015, we think it’s flawed. We want to extend that deal. We want to get rid of the sunsets and we are going to negotiate a deal.'” Now, does that mean we have to give you more sanctions relief? Yeah, probably. The Iranians are not going to just agree without sanctions relief.
Because you’re right. I mean, I’m glad you’ve pointed out because I tried to take a nuanced position during the JCPOA debate, and I got hammered by the left and I got hammered by the right. The left hammered me because I criticized the JCPOA because it’s fundamental flaw was twofold. One, it gave Iran enrichment capability that would expand over time as the restrictions sunset it. Number two, the sunsets were going to kick in and Iran would emerge with this industrial size program, which we would not be able to stop. Now, the nuanced position, which I got hammered on by the right, was I said, “Go negotiate with the Europeans. Agree on a common transatlantic position to approach the Iranians and say, ‘Look, that deal that we did back in 2015, we think it’s flawed. We want to extend that deal. We want to get rid of the sunsets and we are going to negotiate a deal.'” Now, does that mean we have to give you more sanctions relief? Yeah, probably. The Iranians are not going to just agree without sanctions relief.
What happened is the Trump administration tried to negotiate with the Europeans. The Europeans were opposed because they didn’t want to revisit the agreement. We knew the Iranians were completely opposed, and there was no way they were going to do this if the United States and Europe were divided. Just a little bit of history, I just think it’s interesting history. It was at that point that President Trump decided to withdraw from the agreement.
Scott Horton
But what I’m asking you is if say you were the national security advisor under the JCPOA where they’re still shipping all their enriched uranium out of the country and all that, which you would be advising him to not leave, in the negotiations to improve the deal, would you have been willing to accept some level of enrichment then as long as we have the restriction part where they’re shipping it all out of the country, or to you, enrichment at all is always a red line, essentially equivalent to them being 99% of the way to a nuclear weapon?
But what I’m asking you is if say you were the national security advisor under the JCPOA where they’re still shipping all their enriched uranium out of the country and all that, which you would be advising him to not leave, in the negotiations to improve the deal, would you have been willing to accept some level of enrichment then as long as we have the restriction part where they’re shipping it all out of the country, or to you, enrichment at all is always a red line, essentially equivalent to them being 99% of the way to a nuclear weapon?
Mark Dubowitz
Look, enrichment capability is a red line. It has to be a red line.
Look, enrichment capability is a red line. It has to be a red line.
Scott Horton
Even though you know it’s protected by the NPT, the right to peace nuclear technology? They call it a loophole, but they have the right to enrich uranium.
Even though you know it’s protected by the NPT, the right to peace nuclear technology? They call it a loophole, but they have the right to enrich uranium.
Mark Dubowitz
There’s different interpretations of everything, including agreements. There is a raging debate about whether the NPT actually gives you a right to enrich. In fact, the Obama administration, even with the JCPOA, was not willing to recognize Iran’s right to enrich, but they were willing to recognize its de facto reality that they were enriching.
There’s different interpretations of everything, including agreements. There is a raging debate about whether the NPT actually gives you a right to enrich. In fact, the Obama administration, even with the JCPOA, was not willing to recognize Iran’s right to enrich, but they were willing to recognize its de facto reality that they were enriching.
Lex Fridman
Can you explain NPT?
Can you explain NPT?
Mark Dubowitz
It’s the Non-Proliferation Treaty. Iran is a member of it. It’s supposed to promote peaceful civilian nuclear energy, and it’s supposed to prevent countries from developing nuclear weapons. I think that’s a basic summary of it.
It’s the Non-Proliferation Treaty. Iran is a member of it. It’s supposed to promote peaceful civilian nuclear energy, and it’s supposed to prevent countries from developing nuclear weapons. I think that’s a basic summary of it.
Scott Horton
It mandates that non-nuclear weapons states have a safeguards agreement with the IAEA and full of additional protocols and whatever, where they have the right to inspect.
It mandates that non-nuclear weapons states have a safeguards agreement with the IAEA and full of additional protocols and whatever, where they have the right to inspect.
Mark Dubowitz
Which Iran refused to sign, by the way.
Which Iran refused to sign, by the way.
Scott Horton
Well, no, they had an additional protocol that they were abiding, not even enriching at all while they were negotiating with the E-III. Then what the JCPOA really did was add a bunch of additional protocols and subsidiary arrangements and agreements.
Well, no, they had an additional protocol that they were abiding, not even enriching at all while they were negotiating with the E-III. Then what the JCPOA really did was add a bunch of additional protocols and subsidiary arrangements and agreements.
Mark Dubowitz
Iran refused …
Iran refused …
Scott Horton
Had a bunch of additional protocols and subsidiary arrangements and agreements [inaudible 02:04:04].
Had a bunch of additional protocols and subsidiary arrangements and agreements [inaudible 02:04:04].
Mark Dubowitz
Ironically refused to ratify the additional protocol. I just wanted just be clear on the facts. I mean, it’s really important.
Ironically refused to ratify the additional protocol. I just wanted just be clear on the facts. I mean, it’s really important.
Scott Horton
Well, at which point in time did they refuse to ratify? Because they did ratify the JCPOA, which was full of additional protocols and subsidiary arrangements and agreements they’re called.
Well, at which point in time did they refuse to ratify? Because they did ratify the JCPOA, which was full of additional protocols and subsidiary arrangements and agreements they’re called.
Mark Dubowitz
There’s an important additional protocol that Iran refused.
There’s an important additional protocol that Iran refused.
Scott Horton
Which one was that? The one where they promised not to enrich at all, which they actually did abide by while they were negotiating with the E3 in the W. Bush years before they even started spinning centric engines in response.
Which one was that? The one where they promised not to enrich at all, which they actually did abide by while they were negotiating with the E3 in the W. Bush years before they even started spinning centric engines in response.
Mark Dubowitz
The important point is that you asked me what I would advise the National Security Advisor of the United States, or if I was the National Security Advisor of the United States, which I guess I can’t be because I’m a foreigner, but the fact of the matter is-
The important point is that you asked me what I would advise the National Security Advisor of the United States, or if I was the National Security Advisor of the United States, which I guess I can’t be because I’m a foreigner, but the fact of the matter is-
Scott Horton
I think you could still be National Security Advisor. Zbigniew Brzezinski sure was.
I think you could still be National Security Advisor. Zbigniew Brzezinski sure was.
Lex Fridman
I think he was taking a shot back at the fact that you took a shot.
I think he was taking a shot back at the fact that you took a shot.
Scott Horton
You know what, Lex? I think that you probably would recognize that there are many people who lobby for Israel’s interests in the United States who clearly don’t care that much about what happens to the United States of America in it as a consequence because they care about Israel, which is a different country than America, right? It’s not part of the 50 states.
You know what, Lex? I think that you probably would recognize that there are many people who lobby for Israel’s interests in the United States who clearly don’t care that much about what happens to the United States of America in it as a consequence because they care about Israel, which is a different country than America, right? It’s not part of the 50 states.
Lex Fridman
I think an American citizen cares primarily about America. That is a fundamental belief for me. To make an accusation that they don’t requires a very large amount of proof for each individual. I don’t care.
I think an American citizen cares primarily about America. That is a fundamental belief for me. To make an accusation that they don’t requires a very large amount of proof for each individual. I don’t care.
Scott Horton
Pretend that American and Israel’s interests are the same, requires a tremendous amount of cognitive dissonance by those who support Israel’s interests.
Pretend that American and Israel’s interests are the same, requires a tremendous amount of cognitive dissonance by those who support Israel’s interests.
Mark Dubowitz
He’s right. They’re not all the same.
He’s right. They’re not all the same.
Scott Horton
State sponsor of terror as though Iran has anything to do with anti-American terrorists.
State sponsor of terror as though Iran has anything to do with anti-American terrorists.
Lex Fridman
I don’t know who is the they that we’re talking about, but I believe American citizens care about America first. They may discuss how their nations and the interests in the Middle East or in Europe and those interests might align with their own worldview, whatever. But when it comes, at the end of the day, if everybody starts a war with everybody else, they’re America first. I am America first. If there’s a war that breaks out and we have to pick up guns, I’m fighting for America.
I don’t know who is the they that we’re talking about, but I believe American citizens care about America first. They may discuss how their nations and the interests in the Middle East or in Europe and those interests might align with their own worldview, whatever. But when it comes, at the end of the day, if everybody starts a war with everybody else, they’re America first. I am America first. If there’s a war that breaks out and we have to pick up guns, I’m fighting for America.
Scott Horton
I’ll take them on a case by case basis.
I’ll take them on a case by case basis.
Lex Fridman
Case is great.
Case is great.
Scott Horton
I know immigrants. I know immigrants who are absolutely super patriots who know American history and love and care about America more than their next door neighbors who are from here, but that ain’t universal. Okay?
I know immigrants. I know immigrants who are absolutely super patriots who know American history and love and care about America more than their next door neighbors who are from here, but that ain’t universal. Okay?
Lex Fridman
Sure. Let’s talk about case by case then. That’s fine.
Sure. Let’s talk about case by case then. That’s fine.
Mark Dubowitz
Well, I think he’s clearly accusing me.
Well, I think he’s clearly accusing me.
Scott Horton
I think a worse war with Iran. He was entertaining the possibility of putting ground troops in there, [inaudible 02:06:29] catastrophe for this country.
I think a worse war with Iran. He was entertaining the possibility of putting ground troops in there, [inaudible 02:06:29] catastrophe for this country.
Lex Fridman
Don’t take personal shots. Don’t take personal shots. Either of you. You’ve taken personal shots. Let’s not do it. You guys are just having fun and I’m having fun.
Don’t take personal shots. Don’t take personal shots. Either of you. You’ve taken personal shots. Let’s not do it. You guys are just having fun and I’m having fun.
Scott Horton
Just on the idea here.
Just on the idea here.
Mark Dubowitz
Let me respond.
Let me respond.
Scott Horton
He said that there, there’s a threat from the missiles. There’s a threat from Iranian missiles to America’s bases in the Middle East. Yeah. Because of Israel and because of this war, the first time Iran ever fired missiles at an American base over there was in response to Trump bombing them.
He said that there, there’s a threat from the missiles. There’s a threat from Iranian missiles to America’s bases in the Middle East. Yeah. Because of Israel and because of this war, the first time Iran ever fired missiles at an American base over there was in response to Trump bombing them.
Mark Dubowitz
Never Iran’s fault. It’s never Iran’s fault.
Never Iran’s fault. It’s never Iran’s fault.
Scott Horton
Is that what everybody thinks?
Is that what everybody thinks?
Mark Dubowitz
Never his [inaudible 02:06:57] fault.
Never his [inaudible 02:06:57] fault.
Scott Horton
It was Iran who started this?
It was Iran who started this?
Mark Dubowitz
Never Iran’s fault. Let’s bring it back, Scott. What a joke.
Never Iran’s fault. Let’s bring it back, Scott. What a joke.
Lex Fridman
Hold on a second.
Hold on a second.
Mark Dubowitz
Scott. It’s a remarkable management. I want to reiterate this-
Scott. It’s a remarkable management. I want to reiterate this-
Scott Horton
Trump bombed Ordo and then Iran shot missiles at Qatar and Iraq.
Trump bombed Ordo and then Iran shot missiles at Qatar and Iraq.
Mark Dubowitz
Scott, you’re a patriotic American. God bless you. God bless the United States. Thank you for allowing me to come to this country and become an American. It’s a great country and as a patriotic American, I assume that the United States government and the United States intelligence community and the United States military has America’s best interest at heart. However, we have learned from the history, and Scott’s done a very good job of detailing this during the Iraq war, that the United States gets it wrong. I don’t think the United States lied us into war, but the United States got it wrong. So I think Scott’s right. We must make sure that we learn the lessons of Iraq, but not overlearn the lessons of Iraq. I would also say this. There are many lobby organizations in the United States. There’s the China lobby, there’s the oil lobby, there’s the pharmaceutical lobby, there’s the Qatar lobby.
Scott, you’re a patriotic American. God bless you. God bless the United States. Thank you for allowing me to come to this country and become an American. It’s a great country and as a patriotic American, I assume that the United States government and the United States intelligence community and the United States military has America’s best interest at heart. However, we have learned from the history, and Scott’s done a very good job of detailing this during the Iraq war, that the United States gets it wrong. I don’t think the United States lied us into war, but the United States got it wrong. So I think Scott’s right. We must make sure that we learn the lessons of Iraq, but not overlearn the lessons of Iraq. I would also say this. There are many lobby organizations in the United States. There’s the China lobby, there’s the oil lobby, there’s the pharmaceutical lobby, there’s the Qatar lobby.
I live in Washington. I see all these lobby organizations. Okay? The fact of the matter is the pro-Israel lobby, which actually lobbies in support of the U.S.-Israel relationship. It’s comprised of tens of millions of Christians and Jews and Hindus and yes, yes, Muslims who believe strongly in a strong U.S.-Israel relationship. The reason that relationship has been so strong over so many years and that this quote “lobby” has been so successful is they’re pushing through an open door with policymakers. Not because some nefarious money influence, but because at the end of the day, the interests align. We counter terrorism together, we counter nuclear proliferation together, and we believe that the U.S.-Israel relationship is a strong relationship and these accusations of dual loyalty and these accusations of Israel Firsters that Scott’s thrown around, I think distract us from the conversation, which I think we should return to. Let’s talk about today.
We’ve talked about best case scenarios. We’ve talked about worst case scenarios, and we talked about really worst case scenarios. So I think let’s talk about the way forward, and I’d be interested in hearing from Scott where he thinks we’re going, and I’m certainly, I don’t crystal ball these things. It’s always difficult to predict, but I think President Trump has done a really good job. He has led this. He has not been at the beck and call of Bibi Netanyahu or Mohammed bin Salman of Saudi Arabia or anyone else. He has led this effort. He has made these decisions. This is a man who throughout his entire career, and not just his political career, but many, many years before that, believed that an Iranian nuclear weapon was a threat to the United States of America, not just to our allies, but to the United States of America. And he’s been very clear on record.
He led this campaign since he started in January. He offered negotiations. He got rebuffed by the Iranians in Oman. He put pressure on the regime economically. He continued to offer negotiations. He offered something that I thought was flawed. I mean, I got to tell you the offer in Oman that he gave to the Iranians, I thought it was flawed because I think it allowed Iran to retain this key enrichment capability. The Iranians turned it down, and I think Khamenei to his everlasting regret is going to wonder why did I turn that down? I could have got the enrichment capability that Scott thinks they deserve, and yet I rejected it. Why did I reject it? Because now look what’s happened in the past 12 days. I’ve lost Fordo mostly. We’ll see what happens on the BDA, the battle damage assessment. I’ve certainly lost Natanz. I’ve lost my conversion facility at Isfahan, which converts uranium Hexafluoride into, well converts yellowcake into uranium hexafluoride to pump into centrifuges. And the most important thing I lost at Isfahan is a conversion facility that takes 90% enriched uranium and turns it into uranium metal. Without uranium metal-
Scott Horton
They don’t have any 90% enriched uranium. He just means hypothetically, if they did have some, to be clear.
They don’t have any 90% enriched uranium. He just means hypothetically, if they did have some, to be clear.
Mark Dubowitz
You know the 60%, that’s 99% of the way to 90% enriched uranium. By the way, you can make a crude nuclear device with 60% enriched uranium. I just want to put that on the record, but he lost that key conversion facility that turns 90% enriched uranium or even 60% enriched uranium into uranium metal. You need uranium metal to fashion a crude nuclear device or a warhead. That’s been destroyed. And when I was coming in this morning, I just checked, I thought it was interesting and a whole lot of discussion about the fact that about 12 or 16 trucks showed up at Fordo in the days before the U.S strikes and moved something out of Fordo. Well, according to reports, just this morning, we’ll see if they’re verified. I don’t trust single sourcing. I don’t trust what some reporter just says in their stories because reporters got it wrong over and over again, especially all the ones who accuse President Trump have been a Russian agent.
You know the 60%, that’s 99% of the way to 90% enriched uranium. By the way, you can make a crude nuclear device with 60% enriched uranium. I just want to put that on the record, but he lost that key conversion facility that turns 90% enriched uranium or even 60% enriched uranium into uranium metal. You need uranium metal to fashion a crude nuclear device or a warhead. That’s been destroyed. And when I was coming in this morning, I just checked, I thought it was interesting and a whole lot of discussion about the fact that about 12 or 16 trucks showed up at Fordo in the days before the U.S strikes and moved something out of Fordo. Well, according to reports, just this morning, we’ll see if they’re verified. I don’t trust single sourcing. I don’t trust what some reporter just says in their stories because reporters got it wrong over and over again, especially all the ones who accuse President Trump have been a Russian agent.
But we’ll see what happens. We’ll see if it’s verified. But according to the reports, most of the material remained at Fordo because the Iranians were calculating this was the most heavily fortified facility. They were also calculating that President Trump was not going to strike it because what they had been doing was listening to lots of voices and we can name the voices or we can just talk to them about a collective who they thought were telling Trump, “Don’t do it,” and we’re telling Trump “Don’t do it.” And Trump decided on his own to do it. So they kept the enriched material at Fordo, and if that’s the case, it may be that much of it was destroyed. Again, caveat, it’s just one or two stories right now, one in NBC News and let’s see what happens over the coming days. But if that’s the case, that material may have been destroyed.
One other element that we haven’t even talked about at all today, which I think your listeners should be aware of, we talked a lot about nuclear weapons development, warhead development. What the Israelis did was they took out the top 15 nuclear weapons scientists who have been part of, remember I talked about that original Ahmad program and the development of those five atomic weapons? Well, some of them who are old enough come from the Ahmad program, which is the early two thousands. Some of them are new, but they’ve, or not new, but younger, and they’ve been trained by the veterans, the 15 top guys taken out. That is akin to its January or February 45, and the entire central team of Oppenheimer gets eliminated three to four months between the Trinity test, before the Trinity test where we explode our first nuclear weapon. So I would say significant damage to Iran’s nuclear weapons program suggests that we potentially have rolled them back for years.
I don’t know how many years and all those technical assessments are still to come, but significant damage. So the question as I said is have they retained enough capabilities that they’ve squirreled away, stored in covert sites, put under deeply buried tunnels to break out to nuclear weapons? Scott’s concern, it’s my concern, I’m sure it’s your concern that they could do that or have they set back the program so significantly that Khamenei then has to decide, “Will I be inviting another Israeli and or US attack if I try to break out? And if I do, do I risk my regime?”
Scott Horton
Who thinks that if they break out and try to start making nukes now that any hawks supporting this war will take responsibility for driving them to it.
Who thinks that if they break out and try to start making nukes now that any hawks supporting this war will take responsibility for driving them to it.
Lex Fridman
So the suggestion you’re making is we’re actually driving as opposed to doing the opposite, we’re actually driving them to develop nuclear weapons.
So the suggestion you’re making is we’re actually driving as opposed to doing the opposite, we’re actually driving them to develop nuclear weapons.
Scott Horton
Of course. That’s right.
Of course. That’s right.
Lex Fridman
Can you make the case of that?
Can you make the case of that?
Scott Horton
Yeah. Previously he said, “Let’s take the Ayatollah at his word that he only wants a civilian electricity program.” Well, let’s not take him at his word. Again, I never said in this conversation, “Trust the Ayatollah.” He did. Now he’s kind of-,
Yeah. Previously he said, “Let’s take the Ayatollah at his word that he only wants a civilian electricity program.” Well, let’s not take him at his word. Again, I never said in this conversation, “Trust the Ayatollah.” He did. Now he’s kind of-,
Mark Dubowitz
Yeah, but you said that the Ayatollah doesn’t want nuclear a weapons programs. Scott, you were very clear about that.
Yeah, but you said that the Ayatollah doesn’t want nuclear a weapons programs. Scott, you were very clear about that.
Scott Horton
What I said-
What I said-
Mark Dubowitz
Ayatollah never wanted a nuclear weapons program. Are you going back on that now?
Ayatollah never wanted a nuclear weapons program. Are you going back on that now?
Scott Horton
Jesus Christ. What I was very clear about from my very first statement when we sat down was that the Ayatollah was building himself a latent nuclear deterrent, putting Iran as what they call a threshold nuclear weapons state just like Brazil and Germany and Japan, so that everyone knows they have mastered the fuel cycle, they could enrich uranium up to 90%, don’t make me do it. That was his position.
Jesus Christ. What I was very clear about from my very first statement when we sat down was that the Ayatollah was building himself a latent nuclear deterrent, putting Iran as what they call a threshold nuclear weapons state just like Brazil and Germany and Japan, so that everyone knows they have mastered the fuel cycle, they could enrich uranium up to 90%, don’t make me do it. That was his position.
Mark Dubowitz
None of those countries have a nuclear weapons program. None of them.
None of those countries have a nuclear weapons program. None of them.
Scott Horton
Did you ever hear me say anything about believing the Ayatollah saying he only wanted an electricity program? This is why enrichment is a red line. It’s because if all the enrichment is done overseas somewhere, then it’s not a latent nuclear deterrent at all.
Did you ever hear me say anything about believing the Ayatollah saying he only wanted an electricity program? This is why enrichment is a red line. It’s because if all the enrichment is done overseas somewhere, then it’s not a latent nuclear deterrent at all.
Mark Dubowitz
So it’s a red line for you, as well as for me, we agree, Scott.
So it’s a red line for you, as well as for me, we agree, Scott.
Scott Horton
I’m saying it’s a red line for the Ayatollah that he’s clearly not going to give in on, and it’s a poison pill by the Israelis in the west. They know he’s never going to give up enrichment a hundred percent because that’s the whole point of it. So it’s just disingenuous to say, “Oh, let’s believe him that he wants an electricity program.” He’s not saying that. I don’t even think that’s his official position. Or if it is, it’s with a strong implication as everyone understands that it’s a latent nuclear weapons capability and a potential actual nuclear weapons capability.
I’m saying it’s a red line for the Ayatollah that he’s clearly not going to give in on, and it’s a poison pill by the Israelis in the west. They know he’s never going to give up enrichment a hundred percent because that’s the whole point of it. So it’s just disingenuous to say, “Oh, let’s believe him that he wants an electricity program.” He’s not saying that. I don’t even think that’s his official position. Or if it is, it’s with a strong implication as everyone understands that it’s a latent nuclear weapons capability and a potential actual nuclear weapons capability.
Lex Fridman
To you, a deal will have to include enrichment.
To you, a deal will have to include enrichment.
Scott Horton
Yes.
Yes.
Lex Fridman
That is a red line. He will move off.
That is a red line. He will move off.
Scott Horton
Yes. And then the thing is too, just like I was saying before, if Trump had come in 2017 and said, “Screw this, I hate this deal.” And then got on a plane and flown straight to Tehran and said, or sent his guys and said, “Now listen here Ayatollah, I want to fix this deal up better.” I think that he really could have, and I already said, I don’t know the details, but I believe Mark when he says that the Europeans were being intransigent on that. And again, I criticized the CIA and FBI for framing Trump for treason, for preventing him from being able to work with the Russians to see if maybe they could put pressure on the Ayatollah to deal with him.
Yes. And then the thing is too, just like I was saying before, if Trump had come in 2017 and said, “Screw this, I hate this deal.” And then got on a plane and flown straight to Tehran and said, or sent his guys and said, “Now listen here Ayatollah, I want to fix this deal up better.” I think that he really could have, and I already said, I don’t know the details, but I believe Mark when he says that the Europeans were being intransigent on that. And again, I criticized the CIA and FBI for framing Trump for treason, for preventing him from being able to work with the Russians to see if maybe they could put pressure on the Ayatollah to deal with him.
But I think that it’s clear, when the Ayatollah was willing in the JCPOA to, well, first of all, to sign the additional protocol back in the W. Bush years, for three years, he didn’t enrich anything under that deal as long as he was negotiating with the E3 and then under the JCPOA where he’s shipping out every bit of his declared nuclear material, he’s clearly keeping the ability to enrich if necessary to weapons grade if a crisis breaks out and he feels like he has to make nukes. But he had no stockpile to enrich this whole thing about 99% of the way there. He had no stockpile. So even if you count gassing up your truck on the way to the mine as part of this long timescale of percentages here, they were much further from a nuke under the deal, which he agrees we shouldn’t have even gotten out of.
Mark Dubowitz
Can I just say technically, just I think, again, important for your listeners trying understand, under the JCPOA, Iran is allowed to keep a stockpile of a maximum of 300 kilograms, as I remember, of 3.67% enriched material. They’re allowed to continue to enrich as long as if they go over the 300 kilogram, they have to continue to send that out to Russian, to Russia to blend down. And so they kept the enrichment capability, the ability to enrich. They did keep a stockpile. Scott’s right. They’re not allowed in those early years to go under 3.67%. They would be allowed to go to 20% and 60% and 90% as the restrictions sunsetted, but they were able to keep all of those key capabilities. So I just want to clarify just technically what the JCPOA actually said and what it didn’t say.
Can I just say technically, just I think, again, important for your listeners trying understand, under the JCPOA, Iran is allowed to keep a stockpile of a maximum of 300 kilograms, as I remember, of 3.67% enriched material. They’re allowed to continue to enrich as long as if they go over the 300 kilogram, they have to continue to send that out to Russian, to Russia to blend down. And so they kept the enrichment capability, the ability to enrich. They did keep a stockpile. Scott’s right. They’re not allowed in those early years to go under 3.67%. They would be allowed to go to 20% and 60% and 90% as the restrictions sunsetted, but they were able to keep all of those key capabilities. So I just want to clarify just technically what the JCPOA actually said and what it didn’t say.
US attack on Iran
Lex Fridman
Yeah. Can you comment on the so-called Operation Midnight Hammer? Now that we can look back at it, what parts were successful, what parts were a mistake? Was the whole operation a mistake that accelerates the Iran nuclear program or the incentives for it? Or is there some components that actually is a disincentive for Iran to develop the program? And then maybe you can comment on the same. It’d be nice just to get comments on each.
Yeah. Can you comment on the so-called Operation Midnight Hammer? Now that we can look back at it, what parts were successful, what parts were a mistake? Was the whole operation a mistake that accelerates the Iran nuclear program or the incentives for it? Or is there some components that actually is a disincentive for Iran to develop the program? And then maybe you can comment on the same. It’d be nice just to get comments on each.
Scott Horton
Well, I think we really don’t know, right? There’s some initial battle assessments and arguments and all that about just how much was destroyed, and we don’t know exactly what their reaction is going to be. There were reports of them saying, “Hey, we’re already starting up a new facility somewhere else.” There were reports where they said, “Hey, a lot of our centrifuges survived and we’re going to start spinning them up right now,” and this kind of thing. The potential is there. I don’t know what the Ayatollah is going to do. And I think this goes to the larger argument about the apocalyptic threat of the Ayatollah, which Mark has not made, but which Israel hawks often do that these guys just can’t wait to get into a war and all this. In fact, if you look at Iran-
Well, I think we really don’t know, right? There’s some initial battle assessments and arguments and all that about just how much was destroyed, and we don’t know exactly what their reaction is going to be. There were reports of them saying, “Hey, we’re already starting up a new facility somewhere else.” There were reports where they said, “Hey, a lot of our centrifuges survived and we’re going to start spinning them up right now,” and this kind of thing. The potential is there. I don’t know what the Ayatollah is going to do. And I think this goes to the larger argument about the apocalyptic threat of the Ayatollah, which Mark has not made, but which Israel hawks often do that these guys just can’t wait to get into a war and all this. In fact, if you look at Iran-
Mark Dubowitz
Well, they’re in a war, but the argument I make is they’re not going to use a nuclear weapon.
Well, they’re in a war, but the argument I make is they’re not going to use a nuclear weapon.
Scott Horton
Jesus, man, you stop me, you interrupt me every time I try to say anything.
Jesus, man, you stop me, you interrupt me every time I try to say anything.
Mark Dubowitz
But Scott, just You’re mischaracterizing what I’m saying. I need to clarify when you mischaracterize.
But Scott, just You’re mischaracterizing what I’m saying. I need to clarify when you mischaracterize.
Lex Fridman
He’s not interrupting every time, but sometimes interrupting. Yes. So try not to interrupt as much. Go ahead, Scott. Don’t take it personally. Come on, let’s go.
He’s not interrupting every time, but sometimes interrupting. Yes. So try not to interrupt as much. Go ahead, Scott. Don’t take it personally. Come on, let’s go.
Scott Horton
It seems like a deliberate attempt to obfuscate and prevent me-
It seems like a deliberate attempt to obfuscate and prevent me-
Lex Fridman
It’s not.
It’s not.
Scott Horton
From just being able to complete a point. He does it virtually every time.
From just being able to complete a point. He does it virtually every time.
Lex Fridman
No, it’s not. As a listener, I’m enjoying this.
No, it’s not. As a listener, I’m enjoying this.
Scott Horton
Well, look, on the face of it, they blew up a lot of stuff and they made them very angry. So are they going to now give in or they’re now going to double down or they’re now going to hold still? We don’t really know. As I was trying to explain, from the Ayatollah’s position that he’s in, what are you going to do with a problem like the United States of America, right? They can chant great Satan, this and that all they want. They have no ability to really threaten this country in any way. And they know that America absolutely does have the ability to, in fact, even without nuclear weapons, essentially wipe their civilization off the face of the earth just with B52s if we wanted to carpet bomb their major cities. So they know, the Ayatollah knows, he’s in a very difficult position.
Well, look, on the face of it, they blew up a lot of stuff and they made them very angry. So are they going to now give in or they’re now going to double down or they’re now going to hold still? We don’t really know. As I was trying to explain, from the Ayatollah’s position that he’s in, what are you going to do with a problem like the United States of America, right? They can chant great Satan, this and that all they want. They have no ability to really threaten this country in any way. And they know that America absolutely does have the ability to, in fact, even without nuclear weapons, essentially wipe their civilization off the face of the earth just with B52s if we wanted to carpet bomb their major cities. So they know, the Ayatollah knows, he’s in a very difficult position.
And look at what he did. When they assassinated Soleimani, he sent essentially a symbolic strike at an empty corner of an American base in Iraq. It did cause some concussions and head trauma, but he deliberately did that to not cause casualties and then Trump let him have the last word. And then also when they shot down the drone, which I think Trump was suspicious that the Pentagon had flown that into Iranian airspace and they demanded strikes and Trump said “No, it’s just a drone. How many Iranians will die at the base you want me to hit? No, I don’t want to kill them. I don’t want to do it.” And again, he let the Ayatollah get the last word. Same thing happened again with yesterday’s strikes. Iran hit America’s, our central command headquarters to al-Yudid air base in Qatar and also an American base I think in Baghdad, and I’m not sure about in Iraqi Kurdistan.
Lex Fridman
Zero casualties so far?
Zero casualties so far?
Scott Horton
Zero casualties so far. So what is going on there essentially is he’s got to do something. He’s doing these symbolic strikes essentially to say like, “Hey, you can’t do that to me.” But then he’s also telegraphing that, “Hey, I can’t do anything about you and I don’t really want to fight.” And so in a way, he’s kind of backing down. He’s doing, and then what did Donald Trump say? Donald Trump again, let him have the last word and in fact, bragged and mocked and said, “Hey, thanks Ayatollah for giving us a warning that you were about to shoot missiles at our base so we could be ready to shoot them all down,” and this kind of thing. And he said, “Now is the time for peace.” In other words, Trump again, letting the Ayatollah get the last word. Why? Because the Ayatollah, he might be a horrible leader if you live in Iran, but he is not perfectly, but essentially cautious in foreign policy because what’s he going to do?
Zero casualties so far. So what is going on there essentially is he’s got to do something. He’s doing these symbolic strikes essentially to say like, “Hey, you can’t do that to me.” But then he’s also telegraphing that, “Hey, I can’t do anything about you and I don’t really want to fight.” And so in a way, he’s kind of backing down. He’s doing, and then what did Donald Trump say? Donald Trump again, let him have the last word and in fact, bragged and mocked and said, “Hey, thanks Ayatollah for giving us a warning that you were about to shoot missiles at our base so we could be ready to shoot them all down,” and this kind of thing. And he said, “Now is the time for peace.” In other words, Trump again, letting the Ayatollah get the last word. Why? Because the Ayatollah, he might be a horrible leader if you live in Iran, but he is not perfectly, but essentially cautious in foreign policy because what’s he going to do?
He’s going to decimate our naval base at Bahrain. He’s going to slaughter all our troops in Kuwait. And then what’s Trump going to do? And so the Ayatollah knows. So it’s the same people who, and I don’t include him in this, but you hear a lot of the hawkish talk about just how easy this has been, these same people talking about what an absolutely irrational religiously motivated and therefore crazy and irrational group of people the Mullahs are, and why they can only be dealt with with force when in fact what they’re showing is essential conservatism, trying to hold onto what they got, making a latent deterrent because they know if they break out toward a bomb, that’ll get them bombed. So they were hoping having a latent deterrent would be enough to just keep them at the status quo.
That’s why it’s so disingenuous, just again with Marco Rubio, the Secretary of State saying, “Forget the intelligence,” because 60%, hey, it’s 99% of the way there, close enough for us. So it doesn’t matter if the Ayatollah’s decided to make or nuke or not. They’re just too close to one as it is, which is really silly because they’re not much closer than they’ve been for 20 years. Since the W. Bush administration, they proved they’ve mastered the fuel cycle.
Lex Fridman
That is one of the fundamental disagreements in the room that you’re saying they really don’t have interest to develop a nuclear weapon. And they’re not quite-
That is one of the fundamental disagreements in the room that you’re saying they really don’t have interest to develop a nuclear weapon. And they’re not quite-
Scott Horton
Well, not exactly. I mean, what I said-
Well, not exactly. I mean, what I said-
Lex Fridman
More towards that direction, then Mark is saying-
More towards that direction, then Mark is saying-
Scott Horton
More toward, but they’re saying, “Look at us. We’re a threshold state. Don’t push your luck and force us to make the bad decision.” Now, that’s an implication. They have not said that outright, but clearly the implication is that if we force them, then they will go ahead and make a nuclear weapon.
More toward, but they’re saying, “Look at us. We’re a threshold state. Don’t push your luck and force us to make the bad decision.” Now, that’s an implication. They have not said that outright, but clearly the implication is that if we force them, then they will go ahead and make a nuclear weapon.
Lex Fridman
What I mean is if left on their own devices, they would not develop. That’s the case you’re making, the case-
What I mean is if left on their own devices, they would not develop. That’s the case you’re making, the case-
Scott Horton
Well, not just on their own devices, but if we were to try to negotiate with them in good faith and try to have normal relations with them, that would disincentivize a nuclear weapon even further.
Well, not just on their own devices, but if we were to try to negotiate with them in good faith and try to have normal relations with them, that would disincentivize a nuclear weapon even further.
Lex Fridman
Okay. Can you comment on the mission on operation and in general?
Okay. Can you comment on the mission on operation and in general?
Mark Dubowitz
Sure. A couple of things I think were interesting, what Scott said, and I agree certainly with some of it. I mean, the first thing is I do believe President Trump has negotiated in good faith. I mean, he sent Steve Witkoff, he’s chief negotiator for five rounds of negotiations since he came in office. The second is, I mean, we can keep going around in circles, but the fact of the matter is I do believe that Iran and Iran-backed terrorist organizations have for since 1979 killed and tried to kill and maim Americans and taken them hostage. I think it’s important for me again to put that on the record, but where I agree with with Scott is, and it’s interesting, and I don’t know if Khamenei has changed. He’s 86 years old. He’s been in power since 1989. And there’s a little bit of history that I think is really interesting.
Sure. A couple of things I think were interesting, what Scott said, and I agree certainly with some of it. I mean, the first thing is I do believe President Trump has negotiated in good faith. I mean, he sent Steve Witkoff, he’s chief negotiator for five rounds of negotiations since he came in office. The second is, I mean, we can keep going around in circles, but the fact of the matter is I do believe that Iran and Iran-backed terrorist organizations have for since 1979 killed and tried to kill and maim Americans and taken them hostage. I think it’s important for me again to put that on the record, but where I agree with with Scott is, and it’s interesting, and I don’t know if Khamenei has changed. He’s 86 years old. He’s been in power since 1989. And there’s a little bit of history that I think is really interesting.
It was 1988 and Iran and Iraq had fought this brutal eight-year war, a million people dead. And the United States accidentally shot down a Iranian passenger airline. United States offered to pay compensation and apologized. And the Iranians didn’t believe it. They didn’t believe we could accidentally do that. They thought we were going to be intervening militarily on behalf of Saddam. So Khamenei, who’s not the supreme leader at the time, he was the Iranian president. He and Rafsanjani, they go to Khomeini and they say, “Mr. Ayatollah, we got to sue for peace with the Iraqis because the Americans are intervening and we cannot fight the Americans. We fought this brutal war. We’ll continue with Saddam. We cannot fight the United States of America.” I think Scott’s right, that perception that there’s no way they can fight the United States of America because that’s regime ending potentially, even if we don’t intend to, that could actually happen.
And there’s a famous line where Khomeini says, “All right, I agree. I will drink the poison chalice. I’ll drink the poison chalice and I will agree to a ceasefire on pretty tough terms for Iran.” It’s interesting, now, 36 years later or 37 years later, Khamenei is now got to decide to drink the poison chalice. Does he agree to a negotiated deal with the United States? Does he agree to deal that President Trump? And I mean, Scott criticizes me for it, but that’s president Trump’s position is no enrichment, full dismantlement, by the way, that’s backed up by 52 of 53 Republican senators and 177 House GOP members and backed by everybody in his administration, including JD Vance, who’s been emphatic about that. Does he agree to that deal or does he decide, “I’m not going to drink the poison chalice and I’m going to take other options.” Now, I agree with Scott, going after US military bases, except in a symbolic way, suicidal.
Closing the Straits of Hormuz, 40% of Chinese oil goes through there. The Chinese have been saying to Iranians, “Don’t you dare.” By the way, a hundred percent of Iranian oil goes from Iran in Karg Island through the Straits of Hormuz. So economically suicidal for the Iranians to do that. Terror attacks, absolutely. I mean that has been their modus operandi for years. So I would be concerned about terrorist attacks against US targets against civilians, potentially sleeper cells in the United States. So he’s used Tera cells around the world. He’s engaged in a decades long assassination campaign, including on American soil, by the way, sometimes successfully, sometimes not, including most recently, where he went after an Iranian American three times to try to assassinate her in New York, a woman named Masih Alinejad. And so he’s got to be calculating what is my play? So if I don’t do a deal, how can I actually squeeze the Americans? And Scott’s right.
He must be thinking to himself, “You know what? I was literally on the 99 yard line with an entire nuclear weapons capability. I should have crossed the goal line. If I had had a warhead, a nuclear warhead, or multiple nuclear warheads as they had been trying to build since the Ahmad plan in early 2000s, there’s no way Israel and the United States would’ve hit me militarily if I had nuclear weapons, then I would’ve had the ultimate deterrence to prevent that. And then I would be like Kim Jong-un with nuclear weapons. I would then build ICBMs and then I’d have the ultimate deterrent to stop that.” So he’s got to be thinking “Maybe now,” and I can guarantee you the revolutionary guards-
Scott Horton
Do you think that that might have anything to do with the fact that America attacked Iraq and Libya when they did not have weapons of mass destruction programs?
Do you think that that might have anything to do with the fact that America attacked Iraq and Libya when they did not have weapons of mass destruction programs?
Mark Dubowitz
Can I tell you the Libya example? I think Scott is the most interesting one for me, right? Because the Libya example-
Can I tell you the Libya example? I think Scott is the most interesting one for me, right? Because the Libya example-
Scott Horton
When they lynched the guy?
When they lynched the guy?
Mark Dubowitz
It was a big mistake. By the way, Ukraine is another good example of this. We went to the Libyans and we said, “You must fully dismantle your program.” And Gaddafi said, reluctantly under huge American pressure, “Okay, I’ll do it.” And the Brits and the Americans went in there and literally hauled out his entire nuclear-
It was a big mistake. By the way, Ukraine is another good example of this. We went to the Libyans and we said, “You must fully dismantle your program.” And Gaddafi said, reluctantly under huge American pressure, “Okay, I’ll do it.” And the Brits and the Americans went in there and literally hauled out his entire nuclear-
Scott Horton
It wasn’t really a program, it was just a bunch of AQ cons junk sitting in crates in a warehouse. They did not have the capability to make a nuclear program at all in Libya. They didn’t have the engineers, the scientists or anyone. So Gaddafi had bought that junk just to trade it away. Just to be clear, there never was a nuclear weapons program or a nuclear program of any kind in Libya, unlike what you just heard.
It wasn’t really a program, it was just a bunch of AQ cons junk sitting in crates in a warehouse. They did not have the capability to make a nuclear program at all in Libya. They didn’t have the engineers, the scientists or anyone. So Gaddafi had bought that junk just to trade it away. Just to be clear, there never was a nuclear weapons program or a nuclear program of any kind in Libya, unlike what you just heard.
Mark Dubowitz
That wasn’t my point. Okay? My point is you had a nuclear program-
That wasn’t my point. Okay? My point is you had a nuclear program-
Scott Horton
Patents are important.
Patents are important.
Mark Dubowitz
We can debate about, again, how we were debating about whether-
We can debate about, again, how we were debating about whether-
Scott Horton
He had warehouses full of crates.
He had warehouses full of crates.
Mark Dubowitz
Again, it’s always Gaddafi and Khamenei and all these people, they don’t really want nuclear weapons. We just misunderstand them. But that’s not the point. The point is, we did a deal with Gaddafi. We pulled out his nuclear program and then I don’t know how many years later, but it wasn’t too many years late.
Again, it’s always Gaddafi and Khamenei and all these people, they don’t really want nuclear weapons. We just misunderstand them. But that’s not the point. The point is, we did a deal with Gaddafi. We pulled out his nuclear program and then I don’t know how many years later, but it wasn’t too many years late.
Scott Horton
Seven.
Seven.
Mark Dubowitz
Seven years later, thank you, Scott. We actually took Gaddafi out and he didn’t have a nuclear program, so we took him out in the Libya operation. Now, Ukraine is another great example. The Ukrainians after the fall of the Soviet Union, you know this, they had the Soviet nuclear arsenal or good parts of it on their soil. So we went to them and we said, “All right, well here’s the deal for you. Give up the nuclear arsenal off your territory, and we and the Russians and the French guarantee your territorial integrity and your sovereignty as a country.” So the Ukrainians said, “Fair deal to me,” gave up all the nuclear weapons, and then Putin has now invaded Ukraine twice.
Seven years later, thank you, Scott. We actually took Gaddafi out and he didn’t have a nuclear program, so we took him out in the Libya operation. Now, Ukraine is another great example. The Ukrainians after the fall of the Soviet Union, you know this, they had the Soviet nuclear arsenal or good parts of it on their soil. So we went to them and we said, “All right, well here’s the deal for you. Give up the nuclear arsenal off your territory, and we and the Russians and the French guarantee your territorial integrity and your sovereignty as a country.” So the Ukrainians said, “Fair deal to me,” gave up all the nuclear weapons, and then Putin has now invaded Ukraine twice.
Scott Horton
That’s not what the Bucharest Declaration says, that we promised their security, we promised to respect it, and the Russians promised to, and both sides broke that promise. But there is nothing like a guarantee.
That’s not what the Bucharest Declaration says, that we promised their security, we promised to respect it, and the Russians promised to, and both sides broke that promise. But there is nothing like a guarantee.
Mark Dubowitz
That’s not my point.
That’s not my point.
Scott Horton
That America would protect Ukraine’s sovereignty. They gave up those nukes and they had no ability to use those nukes anyway, because they were Soviet nukes with Soviet codes and they belonged to the Soviet military, and the Ukrainians would’ve had no ability to use them or deliver. They were married to missiles that were made to fly around the world, not to Russian next door.
That America would protect Ukraine’s sovereignty. They gave up those nukes and they had no ability to use those nukes anyway, because they were Soviet nukes with Soviet codes and they belonged to the Soviet military, and the Ukrainians would’ve had no ability to use them or deliver. They were married to missiles that were made to fly around the world, not to Russian next door.
Mark Dubowitz
But Scott, my point is, and I think you’ll agree with this, my point is if you’re Khamenei, and you’ve seen those two examples of Libya, you gave up your nuclear program, Gaddafi gets taken down. You’re Ukraine, you gave up your nuclear weapons, and the Russians invaded twice. If you’re Khamenei thinking to yourself, “The only thing that matters more to me than my nuclear weapons program is my regime survival. And in 12 days of war, the Israelis specifically, because we hit Fordo and Isfahan and the Khans, we the United States hit those sites. We the United States hit those sites.
But Scott, my point is, and I think you’ll agree with this, my point is if you’re Khamenei, and you’ve seen those two examples of Libya, you gave up your nuclear program, Gaddafi gets taken down. You’re Ukraine, you gave up your nuclear weapons, and the Russians invaded twice. If you’re Khamenei thinking to yourself, “The only thing that matters more to me than my nuclear weapons program is my regime survival. And in 12 days of war, the Israelis specifically, because we hit Fordo and Isfahan and the Khans, we the United States hit those sites. We the United States hit those sites.
Lex Fridman
The gleeful nation, Scott, stop. Take that out. There’s no place here in this room with me, the un-American bullshit, don’t do that. The implication here, man, is that I, me, am un-American. I’ve been attacked just like the Russian hoax for being a Putin shill. I’m an American.
The gleeful nation, Scott, stop. Take that out. There’s no place here in this room with me, the un-American bullshit, don’t do that. The implication here, man, is that I, me, am un-American. I’ve been attacked just like the Russian hoax for being a Putin shill. I’m an American.
Scott Horton
Well, when you talk about Ukraine’s war with Russia, do you say we or do you say they?
Well, when you talk about Ukraine’s war with Russia, do you say we or do you say they?
Mark Dubowitz
I said we the United States, we actually-
I said we the United States, we actually-
Scott Horton
Well, you added the United States, but you just described Israel’s strikes.
Well, you added the United States, but you just described Israel’s strikes.
Mark Dubowitz
Israel didn’t strike Fordo, Scott.
Israel didn’t strike Fordo, Scott.
Lex Fridman
He talked about the US attack. You’re speaking to this other people that you’ve heard that somehow. They do say we, and they talk about, I would say ridiculously as if, I’ve even heard some people basically put Israel above US, and they’re American citizens. Yeah, that’s fucking ridiculous. But none of those people are in this room. There are demons under the bed. I’m sure those people exist. There’s ridiculous people on the internet. There’s ridiculous people in Congress who can criticize them, make fun of them, say they’re fucking crazy.
He talked about the US attack. You’re speaking to this other people that you’ve heard that somehow. They do say we, and they talk about, I would say ridiculously as if, I’ve even heard some people basically put Israel above US, and they’re American citizens. Yeah, that’s fucking ridiculous. But none of those people are in this room. There are demons under the bed. I’m sure those people exist. There’s ridiculous people on the internet. There’s ridiculous people in Congress who can criticize them, make fun of them, say they’re fucking crazy.
Scott Horton
The foundation for a defense of democracy has been the vanguard of the war party in this country for 25 years.
The foundation for a defense of democracy has been the vanguard of the war party in this country for 25 years.
Lex Fridman
Well, that’s a different criticism, but I was-
Well, that’s a different criticism, but I was-
Scott Horton
It’s an important one.
It’s an important one.
Lex Fridman
Yes, that, but no, you just switched. You just switched. No, no, no. You just switched from the un-American discussion to criticizing policies that that particular institute, fine, criticize the policies, do that. What is the un-American bullshit? Not here.
Yes, that, but no, you just switched. You just switched. No, no, no. You just switched from the un-American discussion to criticizing policies that that particular institute, fine, criticize the policies, do that. What is the un-American bullshit? Not here.
Scott Horton
Lex, the neoconservative movement is the vanguard of the Israel lobby. That’s who they are. That’s what Neoconservatism is about.
Lex, the neoconservative movement is the vanguard of the Israel lobby. That’s who they are. That’s what Neoconservatism is about.
Mark Dubowitz
Lex, I’m not a NeoCon.
Lex, I’m not a NeoCon.
Scott Horton
That’s who the war-
That’s who the war-
Mark Dubowitz
I’m not a neoconservative, so I don’t know who he’s talking about, but I’m not a neoconservative.
I’m not a neoconservative, so I don’t know who he’s talking about, but I’m not a neoconservative.
Lex Fridman
Let’s not mix stuff up.
Let’s not mix stuff up.
Scott Horton
There is a massive Israel lobby in America, in Washington that is inseparable from the American War party.
There is a massive Israel lobby in America, in Washington that is inseparable from the American War party.
Lex Fridman
Yeah, yeah. I’ve talked to John Mersham. I respect him deeply. He’s one of the most brilliant people speaking on that topic. Great, great. Let’s just talk about today and the nuclear proliferation. You guys have been brilliant on this. I’m learning a lot. Let’s continue [inaudible 02:34:01].
Yeah, yeah. I’ve talked to John Mersham. I respect him deeply. He’s one of the most brilliant people speaking on that topic. Great, great. Let’s just talk about today and the nuclear proliferation. You guys have been brilliant on this. I’m learning a lot. Let’s continue [inaudible 02:34:01].
Mark Dubowitz
Yeah. Sorry. Let’s go back to where Khamenei may be. I mean, in a bunker, 86 years old thinking he’s going to drink the poison chalice and agree to a deal with Donald Trump and Oman, or is he going to do all of the things that Scott and I are concerned about? And one of those, and Scott has pointed this out rightly so, is he may decide now to break out for the nuke or creep out for the nuke. He may decide not to do it now, he may decide to do it in three and a half years when President Trump is gone. And I think that the important thing is he’s seen, we, the United States, we took out Fordo and Natanz and Isfahan in one operation with B-II bombers and 12 30,000 pound massive orange penatrators and Tomahawk missile. So if he didn’t think if that the United States had serious military power before, he now knows we do.
Yeah. Sorry. Let’s go back to where Khamenei may be. I mean, in a bunker, 86 years old thinking he’s going to drink the poison chalice and agree to a deal with Donald Trump and Oman, or is he going to do all of the things that Scott and I are concerned about? And one of those, and Scott has pointed this out rightly so, is he may decide now to break out for the nuke or creep out for the nuke. He may decide not to do it now, he may decide to do it in three and a half years when President Trump is gone. And I think that the important thing is he’s seen, we, the United States, we took out Fordo and Natanz and Isfahan in one operation with B-II bombers and 12 30,000 pound massive orange penatrators and Tomahawk missile. So if he didn’t think if that the United States had serious military power before, he now knows we do.
Lex Fridman
So to you, that operation was geopolitically a success. It sends a message of strength that if you try to build, you’re going to be punished.
So to you, that operation was geopolitically a success. It sends a message of strength that if you try to build, you’re going to be punished.
Lex Fridman
It sends a message of strength that if you try to build, you’re going to be punished for it.
It sends a message of strength that if you try to build, you’re going to be punished for it.
Mark Dubowitz
So I’ve said online in the past 12 days, and even before that, “Curb your enthusiasm. Curb your enthusiasm.” So all the people-
So I’ve said online in the past 12 days, and even before that, “Curb your enthusiasm. Curb your enthusiasm.” So all the people-
Lex Fridman
Related to which topic?
Related to which topic?
Mark Dubowitz
… Yeah, just this idea that this has been this unbelievable success and everything’s great. And everything’s going to be amazing. And we stopped the nuclear weapons program and this has been a resounding success.
… Yeah, just this idea that this has been this unbelievable success and everything’s great. And everything’s going to be amazing. And we stopped the nuclear weapons program and this has been a resounding success.
I’ve just said, “Curb your enthusiasm.” Khamenei remains very dangerous. The regime reigns very dangerous. A wounded animal is the most dangerous animal in the animal kingdom. He retains key capabilities to build weapons.
Scott Horton
You demanded unconditional surrender on Twitter again last night, right? After Trump said there’s a ceasefire?
You demanded unconditional surrender on Twitter again last night, right? After Trump said there’s a ceasefire?
Mark Dubowitz
Yes.
Yes.
Lex Fridman
What does unconditional surrender mean?
What does unconditional surrender mean?
Mark Dubowitz
It means no enrichment, full dismantlement.
It means no enrichment, full dismantlement.
Lex Fridman
Okay.
Okay.
Mark Dubowitz
Yes, exactly right. It’s exactly what President Trump … Well, I can’t-
Yes, exactly right. It’s exactly what President Trump … Well, I can’t-
Scott Horton
Not a regime change? Unconditional surrender in World War II meant the end of the Nazi regime and the imperialist Japanese regime entirely. Right?
Not a regime change? Unconditional surrender in World War II meant the end of the Nazi regime and the imperialist Japanese regime entirely. Right?
Lex Fridman
Does President Trump know what that means?
Does President Trump know what that means?
Mark Dubowitz
He made it very clear. President Trump made it very clear.
He made it very clear. President Trump made it very clear.
Lex Fridman
Unconditional?
Unconditional?
Mark Dubowitz
He made it clear, ” I don’t support regime change.”
He made it clear, ” I don’t support regime change.”
Lex Fridman
Well, except for that one post.
Well, except for that one post.
Scott Horton
A few hours earlier? Right.
A few hours earlier? Right.
Mark Dubowitz
Actually, I’ll explain that one because I thought it was really interesting.
Actually, I’ll explain that one because I thought it was really interesting.
Lex Fridman
He’s re-analyzing it like it’s Shakespeare. What does that?
He’s re-analyzing it like it’s Shakespeare. What does that?
Mark Dubowitz
Yeah, yeah.
Yeah, yeah.
Lex Fridman
And what did he also mean? We have two countries that have been fighting so long and so hard that they don’t know what the fuck they’re doing. What’s that about?
And what did he also mean? We have two countries that have been fighting so long and so hard that they don’t know what the fuck they’re doing. What’s that about?
Scott Horton
He was angry that Israel was still attacking after he promised they weren’t. He demanded they turn their planes around. He felt that they were doing it in defiance of their agreement.
He was angry that Israel was still attacking after he promised they weren’t. He demanded they turn their planes around. He felt that they were doing it in defiance of their agreement.
Lex Fridman
But he didn’t say Israel. He says that both countries [inaudible 02:36:30].
But he didn’t say Israel. He says that both countries [inaudible 02:36:30].
Scott Horton
Different quote. He did say, I believe it was a tweet from Truth Social, “I demand that Israel turn those planes around right now.” Was how upset he was about it.
Different quote. He did say, I believe it was a tweet from Truth Social, “I demand that Israel turn those planes around right now.” Was how upset he was about it.
Mark Dubowitz
Well, I guess Donald Trump doesn’t listen to Bibi all the time, does he?
Well, I guess Donald Trump doesn’t listen to Bibi all the time, does he?
Scott Horton
Yeah, I guess he’s finding out they respect him about as much as they respect the Palestinian. He’s just the help.
Yeah, I guess he’s finding out they respect him about as much as they respect the Palestinian. He’s just the help.
Lex Fridman
Well, that’s how world leaders …. World leaders are interested in their own nation.
Well, that’s how world leaders …. World leaders are interested in their own nation.
Mark Dubowitz
That’s right.
That’s right.
Lex Fridman
They fuck you over.
They fuck you over.
Scott Horton
Good important lesson there everyone. What does Israel care about? Israel.
Good important lesson there everyone. What does Israel care about? Israel.
Mark Dubowitz
Every country then defends its national interests. That’s not unusual for Israel or any other country. But I think to understand-
Every country then defends its national interests. That’s not unusual for Israel or any other country. But I think to understand-
Scott Horton
We’re supposed to pretend that, “Hey, whatever Israel needs, we’re here to serve their interests.”
We’re supposed to pretend that, “Hey, whatever Israel needs, we’re here to serve their interests.”
Lex Fridman
If those people exist, they aren’t American. If people put Israel’s interest first-
If those people exist, they aren’t American. If people put Israel’s interest first-
Scott Horton
He just said we fight terrorism together.
He just said we fight terrorism together.
Mark Dubowitz
… Well, we do.
… Well, we do.
Scott Horton
Well, we generate terrorism together. What are you talking about?
Well, we generate terrorism together. What are you talking about?
Lex Fridman
But that doesn’t mean you put Israel’s interest above America’s. If you do, you’re unAmerican.
But that doesn’t mean you put Israel’s interest above America’s. If you do, you’re unAmerican.
Mark Dubowitz
You know how many American lives-
You know how many American lives-
Scott Horton
That’s all I’m saying.
That’s all I’m saying.
Mark Dubowitz
… Israeli intelligence community has saved? And ask people in the FBI and CIA who work counter-terrorism, how many American lives the Israelis have saved because of their intelligence capabilities.
… Israeli intelligence community has saved? And ask people in the FBI and CIA who work counter-terrorism, how many American lives the Israelis have saved because of their intelligence capabilities.
Scott Horton
How about when Naftali Bennett, again, bombed that shelter full of women and children and caused the September 11th attack. That’s what happened. In fact, I don’t know if you know the story, but you could Google this. You like Googling things. It’s on Google Books.
How about when Naftali Bennett, again, bombed that shelter full of women and children and caused the September 11th attack. That’s what happened. In fact, I don’t know if you know the story, but you could Google this. You like Googling things. It’s on Google Books.
You can read Perfect Soldiers by Terry McDermott, or you could read The Looming Tower by Lawrence Wright, where both of them explained how when Shimon Peres launched Operation Grapes of Wrath, that Ramzi bin al-Shibh and Mohammed Atta filled out their last will and testament, which was like symbolically joining the army to fight against the infidels, et cetera, et cetera.
And when Bin Laden put out his first declaration of war, a couple of months later, it began with a whole rant about the 106 women and children that Naftali Bennett had killed with an artillery strike in a UN shelter in Qana in 1996. And he said, “We’ll never forget the severed arms and heads and legs of the little babies,” et cetera.
And it was then that Mohammed Atta and Ramzi bin Al-Shib decided that they would join Al-Qaeda and that these Egyptian engineering students studying in Hamburg, Germany would volunteer for the Saudi Sheik to kill 3000 Americans to get revenge for what Israel was doing to helpless women and children in Lebanon. As well as, of course, what’s going on in Palestine.
Mark Dubowitz
Of course, that’s ignores the history of Al-Qaeda-
Of course, that’s ignores the history of Al-Qaeda-
Scott Horton
Which for years before that was for the United States, Britain, and Saudi Arabia.
Which for years before that was for the United States, Britain, and Saudi Arabia.
Mark Dubowitz
… operations against the United States, but executing them.
… operations against the United States, but executing them.
Lex Fridman
You guys love pulling each other into history.
You guys love pulling each other into history.
Scott Horton
No, no, no. History is, America’s problem with Al-Qaeda-
No, no, no. History is, America’s problem with Al-Qaeda-
Mark Dubowitz
Just one second.
Just one second.
Mark Dubowitz
America’s problems with Al-Qaeda is Israel. America and Israel are terrorist states. Scott-
America’s problems with Al-Qaeda is Israel. America and Israel are terrorist states. Scott-
Scott Horton
They were America’s mercenaries that we used in Afghanistan, in Bosnia, in Kosovo, in Chechnya.
They were America’s mercenaries that we used in Afghanistan, in Bosnia, in Kosovo, in Chechnya.
Mark Dubowitz
It’s all us. It’s all us.
It’s all us. It’s all us.
Scott Horton
But they turned against us.
But they turned against us.
Mark Dubowitz
And when I mean us, Scott? I mean, America.
And when I mean us, Scott? I mean, America.
Scott Horton
They turned against us.
They turned against us.
Mark Dubowitz
It’s all us, Scott. It’s all us.
It’s all us, Scott. It’s all us.
Scott Horton
Anyone can read Michael Shearer’s book, the former chief of the CIA’s Bin Laden where he wrote his great book.
Anyone can read Michael Shearer’s book, the former chief of the CIA’s Bin Laden where he wrote his great book.
Mark Dubowitz
We’re responsible for our enemies attacking us.
We’re responsible for our enemies attacking us.
Scott Horton
It’s called Imperial Hubris.
It’s called Imperial Hubris.
And it’s about how the number one reason they attacked us was American bases on Saudi soil, they bombed Iraq as part of Israel’s dual containment policy. And the second reason was American support for Israel in their merciless persecution of the Palestinians and the Lebanese.
Mark Dubowitz
That’s the most articulate justification I’ve ever heard for Al-Qaeda in my life. But let’s-
That’s the most articulate justification I’ve ever heard for Al-Qaeda in my life. But let’s-
Scott Horton
It’s not a justification. I’m not saying that makes what they did right? I’m saying that was how Bin Laden recruited his foot soldiers to attack this country was by citing American foreign policies that were directly to the detriment of the people of the Middle East. And specifically, our support for Israel.
It’s not a justification. I’m not saying that makes what they did right? I’m saying that was how Bin Laden recruited his foot soldiers to attack this country was by citing American foreign policies that were directly to the detriment of the people of the Middle East. And specifically, our support for Israel.
And I’ve never heard a pro, in fact … I take that back. There’s one guy, a liberal from the Nation magazine named Eric Alterman is the only pro-Israel guy I’ve ever heard say, “Well, that may be true, but I still say we got to support Israel anyway.”
The others, they’ll just pretend that Terry McDermott never wrote that book. That Lawrence Wright never wrote that book. That Mohammed Atta had no motive to turn on the United States except for Muhammad made him do it. When in fact, what it was is it was the ultra violence of Shimon Peres and artillery officer Naftali Bennett slaughtering women and children that turned America’s mercenaries.
America backed the Arab Afghan army in Afghanistan, in Bosnia, in Kosovo, and in Chechnya, as I demonstrate in my book. And yet, as he correctly says, they turned on us all through the 1990s. Bill Clinton was still backing them anyway, after they were attacking us and including at Khobar Towers, and they were doing that.
This was a Bin Ladenite plot, not Hezbollah, not the Shiites. This was the Bin Ladenites getting revenge against us for support for Israel and being too close to their local dictators that they wanted to overthrow, namely the King of Saudi and the El Presidente of Egypt.
That is the cause of the September 11th attack against the United States. Not the Taliban hate freedom, but the Bin Ladenites hate American support for Israel and America adopting Israeli-centric policies like Martin Indyk’s dual-containment policy in 1983.
Mark Dubowitz
I think Al-Qaeda hates America, Scott.
I think Al-Qaeda hates America, Scott.
Scott Horton
Why? You know what? I’ll tell you what, Ali Soufan … You know, Ali Soufan, the former FBI agent, counter-terrorism agent? He wrote in his book, The Black Banners, that the Bin Ladenites said to Bin Laden, “We don’t understand why you’re so angry at America. They’ve been so good to us in Afghanistan, in Bosnia, in Kosovo, and now here in Chechnya. Why do you want to attack them?”
Why? You know what? I’ll tell you what, Ali Soufan … You know, Ali Soufan, the former FBI agent, counter-terrorism agent? He wrote in his book, The Black Banners, that the Bin Ladenites said to Bin Laden, “We don’t understand why you’re so angry at America. They’ve been so good to us in Afghanistan, in Bosnia, in Kosovo, and now here in Chechnya. Why do you want to attack them?”
Mark Dubowitz
And Bin Laden attacked America.
And Bin Laden attacked America.
Scott Horton
Bin Laden said, “I have a larger agenda that you don’t understand.”
Bin Laden said, “I have a larger agenda that you don’t understand.”
Lex Fridman
The disagreement between you is clear. I’ve talked to Noam Chomsky twice. Scott, you focus on the criticism.
The disagreement between you is clear. I’ve talked to Noam Chomsky twice. Scott, you focus on the criticism.
Scott Horton
You should interview Michael Scheuer. Well, although he’s gone pretty crazy lately. I don’t know. Maybe not.
You should interview Michael Scheuer. Well, although he’s gone pretty crazy lately. I don’t know. Maybe not.
Nuclear proliferation in the future
Lex Fridman
Anyway, we’re going into history. We’re learning a lot. The perspectives differ strongly. Can we look into the, maybe a ridiculous question, but a nuclear proliferation? You already started to speak to, both of you.
Anyway, we’re going into history. We’re learning a lot. The perspectives differ strongly. Can we look into the, maybe a ridiculous question, but a nuclear proliferation? You already started to speak to, both of you.
If you look like 10, 20 years out now, does the US attacking Iran, does that send a message, even to MBS to other Middle Eastern nations, that they need to start thinking about a nuclear weapon program? Specifically, do you think just in a numbers way, does the number of nukes in the world go up in 10, 20, 30 years?
Mark Dubowitz
So look, I think it’s a great question. Will there be more nuclear weapons powers in the future or less as a result of this decision by President Trump?
So look, I think it’s a great question. Will there be more nuclear weapons powers in the future or less as a result of this decision by President Trump?
So I actually think there’ll be less, and I’ll tell you succinctly as I can. And that is, that it’s been very clear from the Saudis, from the Turks, certainly from even the Algerians and others, that if Iran gets a nuclear weapon, they too want a nuclear weapon.
In fact, the Saudis have gone even further and said, “If Iran is allowed to retain the key enrichment capability that they have under JCPOA, that we want that too. If there’s an Iran standard, we want the Iran standard. We don’t want the gold standard.”
In fact, that’s been the subject of intensive negotiations between the United States and Saudi Arabia for the past couple of years, both under Biden and Trump, as part of the US-Saudi defense agreement, an economic agreement that has been underway.
It’s very clear that there’s going to be a proliferation cascade in the Middle East if the Iranians get a nuclear weapon. And certainly, if they’re allowed to retain this enrichment capability. I also worry about, we haven’t even talked about it at all this conversation, the most important area in the world for the United States is not the Middle East. It’s China and the Indo-Pacific.
And I worry that the South Koreans, the Taiwanese, and the Japanese will say, “You know what? We don’t trust any US commitments to stop nuclear weapons. You failed on Iran. We don’t trust you. We don’t trust your nuclear umbrella. We too want nuclear weapons in order to guard our security against China.”
And so what you would see, I hope it doesn’t happen but I worry about, is this proliferation cascade in the Middle East and in the Indo-Pacific. Two of the most important areas for American national security, which is why I think it’s very important that Iran’s be stopped.
Now, whether this attack succeeds in stopping Iran’s nuclear weapon or accelerates it, we disagree, but I think neither us know yet. Hard to predict. But what I think is absolutely certain is that if Iran develops that nuclear weapon and is allowed to retain the key capabilities to do so, you’re going to see five, six countries in the Middle East, at least three, four countries in the Indo-Pacific asking for the same capability. And then you’re going to have a club of nuclear weapons powers that will have an additional 5, 6, 7 over the next 10 to 20 years.
Lex Fridman
What if they don’t? What if they’re prevented? Doesn’t that still send the same message to everybody that they should build?
What if they don’t? What if they’re prevented? Doesn’t that still send the same message to everybody that they should build?
Mark Dubowitz
Oh, I think it sends the opposite message, Lex. I think if they see what has happened and that it’s successful, and it stopped Iran from developing nuclear weapons. And in addition, if Trump is able to negotiate an agreement for zero enrichment and full dismantlement, then the message to all these other countries is, number one, you don’t need it. And number two, if you try to get it, then the United States is going to use American power.
Oh, I think it sends the opposite message, Lex. I think if they see what has happened and that it’s successful, and it stopped Iran from developing nuclear weapons. And in addition, if Trump is able to negotiate an agreement for zero enrichment and full dismantlement, then the message to all these other countries is, number one, you don’t need it. And number two, if you try to get it, then the United States is going to use American power.
Now, I’m not suggesting the United States is going to start bombing the Saudis or the Turks or the Emiratis. Clearly, not the Japanese, many of them are allies. But I think the United States retains many counter-proliferation tools to prevent these countries from developing nuclear weapons, including sanctions and export controls, and many other things.
And plus, I think those countries … Understand, that in the Middle East, despite Scott’s focus on Israel, when you talk to Arab leaders, their biggest concern is the threat from Iran. It’s not the threat from Israel. They’re not concerned with the threat from Israel. That’s why he had the Abraham Accords.
This is why the UAE and Bahrain and Morocco entered into this peace agreement with Israel. The Saudis will one day and they’ll bring many other Arab and Muslim countries in it. They don’t say Israel is a threat. They see Iran as a threat. And so if you counter that threat, you eliminate Iran’s nuclear weapons, proliferation and expansion, those countries now no longer have to build nuclear capabilities to counter the Iranians.
Now, we’ve also restored our credibility. We don’t bluff. We said Iran doesn’t develop nuclear weapons. They won’t. And now it’s the Japanese who have, as Scott rightly pointed out, they do have reprocessing and plutonium capabilities. The Taiwanese who used to have a military nuclear weapons program and gave it up. And the South Koreans who agreed to our gold standard of zero enrichment, zero reprocessing. Those three countries can now say, “Okay, we rely on the United States. On your word, on your power, and on your ability to actually turn words into action. We don’t need nuclear weapons.”
So I’d say if successful, big if, big if. If successful, then it’s going to be a significant guard against the potential of greater nuclear proliferation/ and we will have less nuclear weapons powers than we otherwise would’ve.
Lex Fridman
My favorite thing is when you guys point out, when you agree with the other person. Anyway, Scott, what do you think? Everything that’s just happened over the past two weeks does to nuclear proliferation over the next 5, 10, 20 years?
My favorite thing is when you guys point out, when you agree with the other person. Anyway, Scott, what do you think? Everything that’s just happened over the past two weeks does to nuclear proliferation over the next 5, 10, 20 years?
Scott Horton
I really don’t know for sure. But I would think that there’s a very great danger that it’s going to reinforce the lessons of North Korea, Iraq, and Libya, which is, “You better get a nuke to keep America out. And you better hurry before it’s too late.”
I really don’t know for sure. But I would think that there’s a very great danger that it’s going to reinforce the lessons of North Korea, Iraq, and Libya, which is, “You better get a nuke to keep America out. And you better hurry before it’s too late.”
Now for the Saudis, they’re not going to do that, because they’re obviously a very close American client state, so it’s a different dynamic there. But for any country that has trouble with the United States or is worried about the future of their ability to maintain their national sovereignty, obviously getting their hands on an A-bomb as quickly as possible has been re-incentivized to a great degree.
Also, I’m really worried about the future of the Non-Proliferation Treaty with a nuclear weapons state’s promise to respect the right of non-nuclear weapons states to civilian nuclear energy. And where here you have a non-NPT signatory nuclear weapons state, Israel, launch an aggressive war against an NPT signatory that was not attacking them and was not making nuclear weapons. And with the assistance of the world empire, the United States, another nuclear weapons state signatory to the NPT.
And I don’t really take this that seriously, but it’s worth at least listening to, is Medvedev, the once and probably future president of Russia. He said, “Oh yeah, well maybe we’ll just give him a nuke,” or implied maybe give Pakistan too. Now for people familiar with Key & Peele, Medvedev is angry at Obama, right? For Putin, that skit where it’s Obama talks all calm.
Lex Fridman
And good translator.
And good translator.
Scott Horton
And Peele goes off like an angry Black guy kind of character. Right?
And Peele goes off like an angry Black guy kind of character. Right?
Lex Fridman
He’s been going nuts on Twitter.
He’s been going nuts on Twitter.
Scott Horton
Yeah, he goes way out, above and beyond, but I think he’s probably acting on instructions to talk that way. And it is a real risk that the NPT could just fall apart when it’s treated so callously by the United States who invented it. And insisted that the rest of the world adopt the thing to such a great degree.
Yeah, he goes way out, above and beyond, but I think he’s probably acting on instructions to talk that way. And it is a real risk that the NPT could just fall apart when it’s treated so callously by the United States who invented it. And insisted that the rest of the world adopt the thing to such a great degree.
Lex Fridman
Trump did say, ” Don’t use the N word.” He talked down to Medvedev.
Trump did say, ” Don’t use the N word.” He talked down to Medvedev.
Scott Horton
That’s right. Yeah, he did.
That’s right. Yeah, he did.
Lex Fridman
Don’t throw around the nuclear word.
Don’t throw around the nuclear word.
Scott Horton
Yeah. Well, and I appreciate that.
Yeah. Well, and I appreciate that.
Lex Fridman
That’s good. He’s right. He’s right in that. It’s a serious thing.
That’s good. He’s right. He’s right in that. It’s a serious thing.
Scott Horton
And look, Pakistanis could give a nuke to Iran who are their friends, I think not the tightest of allies. I’m not saying I predict that, but there’s a danger of that.
And look, Pakistanis could give a nuke to Iran who are their friends, I think not the tightest of allies. I’m not saying I predict that, but there’s a danger of that.
Now, when it comes to Eastern Asia, obviously there’s a concern about a Chinese threat to Taiwan, but nobody thinks China’s coming for South Korea or Japan. The question of Taiwan is one that’s very different because as the American president agreed with Mao Zedong years ago, Taiwan is part of China and eventually will be reunited, although we hope that’s not by force.
Since then, they have essentially abandoned Marxism, although it’s still a one-party authoritarian state. But they’ve essentially abandoned Marxism, adopted markets. At least to the degree that they’ve been able to afford to now build up a giant naval force that is capable of retaking Taiwan.
And so I think the way to prevent that is not from making a bunch of threats and setting examples in other places about how tough we are, but to negotiate with the Chinese and the Taiwanese. And figure out a way to reunite the two in a peaceful way in order to prevent that war from breaking out.
Because in fact, we don’t really have the naval and air capability to defend Taiwan. We could lose a lot of guys trying and probably kill a lot of Chinese trying. But in the end, they’d probably take Taiwan anyway. And we’d have lost a bunch of ships and planes for nothing. So we can negotiate an end to that.
And then even if America just withdrew from the region, we could still negotiate long-term agreements between China, Japan, South Korea, and whoever. There’s no reason to think that everyone would make a mad scramble to a bomb to protect them the moment they are out from under America’s nuclear umbrella and so forth.
And the fact of the matter is that the greatest threat to the status quo as far as the nuclear powers go, probably is what just happened. America and Israel launching this war against a non-nuclear weapon state as a member in good standing of this treaty, throws the whole, as they call it, the liberal rules-based world order into question.
If these rules repeatedly always apply to everyone else, but very often not to us, then are they really the law? Or this is just the will of men in Washington, D.C.? And how long do we expect the rest of the world to go ahead and abide by that? If a deal is a deal until we decide, as Bill Clinton said, to wake up one morning and decide that we don’t like it anymore and change it. That was a phrase from the Founding Act of ’97. Maybe we’ll wake up one morning and decide that we all want to do something else entirely.
Lex Fridman
Is that your Bill Clinton impression?
Is that your Bill Clinton impression?
Scott Horton
No. I’ll spare you.
No. I’ll spare you.
Lex Fridman
Okay.
Okay.
Scott Horton
That was pretty good. After the show, when we’re not recording much.
That was pretty good. After the show, when we’re not recording much.
Mark Dubowitz
Can I respond to a couple of things here? Just really quickly. I’ll try to do it quickly.
Can I respond to a couple of things here? Just really quickly. I’ll try to do it quickly.
First of all, the notion that Iran is in full compliance with the NPT is just not the case. The International Atomic Energy Agency has made it clear in report after report after report that Iran is in violation of its obligations under the protocols of the IAEA. Under the request that the IAEA have made and under the NPT.
So they are a serial violator of the NPT, unlike all these other countries we’ve been talking about that are our allies. Second is this quote, “Iran is not attacking Israel.” That’s quite an amazing quote, which kind of ignores, I think 50, 60 years of Iranian attacks against Israel, including suicide bombings, and missiles, and drones, and October 7th.
And it’s indisputable that Iran has been attacking Israel and they’ve been doing it for many years through their terror proxies that they fund and finance and weaponize. And since October 7th, they directly struck Israel with hundreds of ballistic missiles in April and October of last year.
So this notion that before 12 days ago, Iranians were just playing nice with the Israelis and the Israelis just came out out of the blue-
Scott Horton
I didn’t say that.
I didn’t say that.
Mark Dubowitz
… Well, you said, quote unquote, “Iran is not attacking Israel.” So I mean, it’s just not true.
… Well, you said, quote unquote, “Iran is not attacking Israel.” So I mean, it’s just not true.
Scott Horton
Yeah, they were not in a state of war until Israel launched a state of war. That’s the fact.
Yeah, they were not in a state of war until Israel launched a state of war. That’s the fact.
Mark Dubowitz
Yeah, they were at war.
Yeah, they were at war.
Scott Horton
Oh, well, they backed a group that did a thing. Yeah, okay.
Oh, well, they backed a group that did a thing. Yeah, okay.
Mark Dubowitz
They killed thousands of Israelis, maimed thousands of Israelis.
They killed thousands of Israelis, maimed thousands of Israelis.
Scott Horton
But that attack was not-
But that attack was not-
Mark Dubowitz
Suicide bomb ordered in Tehran.
Suicide bomb ordered in Tehran.
Scott Horton
The Wall Street Journal says that US intelligence does not believe that Tehran ordered that attack. But they found out about-
The Wall Street Journal says that US intelligence does not believe that Tehran ordered that attack. But they found out about-
Mark Dubowitz
What the Wall Street Journal says and what the US intelligence says, and we can dispute whether they directed it on October 7th. Everybody knows indisputably, that Iran financed Hamas, provided Hamas with weapons.
What the Wall Street Journal says and what the US intelligence says, and we can dispute whether they directed it on October 7th. Everybody knows indisputably, that Iran financed Hamas, provided Hamas with weapons.
Scott Horton
So did Israel.
So did Israel.
Mark Dubowitz
Well, just a second, provided Hamas with weapons. That the IRGC and the Quds force were training Hamas. Hezbollah backed by Iran was training Hamas. There were three meetings before October 7th, one in Beirut, one in Damascus, and one in Tehran where the IRGC, Hezbollah, Hamas, and Palestinian Islamic Jihad were together. There was a meeting in Tehran that was attended by Khamenei the Supreme leader.
Well, just a second, provided Hamas with weapons. That the IRGC and the Quds force were training Hamas. Hezbollah backed by Iran was training Hamas. There were three meetings before October 7th, one in Beirut, one in Damascus, and one in Tehran where the IRGC, Hezbollah, Hamas, and Palestinian Islamic Jihad were together. There was a meeting in Tehran that was attended by Khamenei the Supreme leader.
Now at those three meetings right before October 7th, maybe they’re discussing the weather. Maybe they were discussing Persian poetry, I don’t know, but it’s hard to believe they weren’t discussing something. And the fact that they had armed Hamas, financed Hamas, and weaponized Hamas, suggests to me that there is pretty overwhelming evidence that Iran has been at war with Israel for decades.
Lex Fridman
Critics of Israel will say that Benjamin Netanyahu has also been indirectly financing Hamas by allowing the funds going into-
Critics of Israel will say that Benjamin Netanyahu has also been indirectly financing Hamas by allowing the funds going into-
Scott Horton
I’ll say that America backs Israel, so anything Israel does is America’s responsibility too under that same logic, right?
I’ll say that America backs Israel, so anything Israel does is America’s responsibility too under that same logic, right?
Lex Fridman
… I think you started to make a point disagreeing with Scott about that they’re not a good member of the NPT.
… I think you started to make a point disagreeing with Scott about that they’re not a good member of the NPT.
Scott Horton
That’s all tiny technical violations. None of that has anything to do with weaponization. It’s always so, “Yeah, how do you explain this isotope?” And they go, “Well, it must’ve came with the Pakistani junk that we bought from [inaudible 02:56:14].”
That’s all tiny technical violations. None of that has anything to do with weaponization. It’s always so, “Yeah, how do you explain this isotope?” And they go, “Well, it must’ve came with the Pakistani junk that we bought from [inaudible 02:56:14].”
And then later that’s verified. And they go, “Yeah, well, we want to inspect this. Let us.” And they go, “No.” And then they do a year later, and then they find nothing there.
Mark Dubowitz
Yeah, that’s just not the case.
Yeah, that’s just not the case.
Scott Horton
That’s the entire history of the IAEA’s objections to Iran.
That’s the entire history of the IAEA’s objections to Iran.
Mark Dubowitz
So your listeners, I know they’re not going to do it, because it’s a lot of technical reading.
So your listeners, I know they’re not going to do it, because it’s a lot of technical reading.
Scott Horton
Nothing to do with weaponization. A diversion of nuclear material.
Nothing to do with weaponization. A diversion of nuclear material.
Mark Dubowitz
But just go out, go out and read IAEA reports dating back at least 20 years. And you’ll see the IAEA meticulously, methodically, dispassionately outlining all of the violations that Iran has embarked on of the NPT.
But just go out, go out and read IAEA reports dating back at least 20 years. And you’ll see the IAEA meticulously, methodically, dispassionately outlining all of the violations that Iran has embarked on of the NPT.
Scott Horton
Virtually all those are resolved later. They won’t answer this, and then later they do. Well, they won’t answer that, and then later they do.
Virtually all those are resolved later. They won’t answer this, and then later they do. Well, they won’t answer that, and then later they do.
Mark Dubowitz
And many open files are still there. Again, I just want your viewers to walk away from this conversation thinking, “Okay, that’s interesting. I didn’t know that.” And that, “I’m going to go fact check Mark and fact check Scott, and just see what this is all about.” Right? Because otherwise, it’s just he says, she says, or he says, he says.
And many open files are still there. Again, I just want your viewers to walk away from this conversation thinking, “Okay, that’s interesting. I didn’t know that.” And that, “I’m going to go fact check Mark and fact check Scott, and just see what this is all about.” Right? Because otherwise, it’s just he says, she says, or he says, he says.
The fact of the matter is, is that Iran has been in violations of its obligations under the NPT. Under the additional protocol, it never ratified under its safeguards obligations under the NPT. It suggests a pattern of nuclear mendacity.
Scott Horton
They abided by the additional protocol without having ratified it. They abided by it for three years and did not proceed with any enrichment at all as long as they were dealing in good faith with the EU until W. Bush ruined those negotiations and closed them down. Only then did they begin to install the centrifuges at Natanz.
They abided by the additional protocol without having ratified it. They abided by it for three years and did not proceed with any enrichment at all as long as they were dealing in good faith with the EU until W. Bush ruined those negotiations and closed them down. Only then did they begin to install the centrifuges at Natanz.
Mark Dubowitz
It’s always the Americans who screw things up.
It’s always the Americans who screw things up.
Scott Horton
You complain they didn’t ratify the thing, but they abided by it for years.
You complain they didn’t ratify the thing, but they abided by it for years.
Mark Dubowitz
So that’s an interesting-
So that’s an interesting-
Lex Fridman
They were in violation of it. But I think a more pragmatic and important disagreement that we already spoke to is how do we decrease the incentive for Iran to build nuclear programs? Not just the next couple of years, but the next 10, 20 years.
They were in violation of it. But I think a more pragmatic and important disagreement that we already spoke to is how do we decrease the incentive for Iran to build nuclear programs? Not just the next couple of years, but the next 10, 20 years.
Scott Horton
Attack it more.
Attack it more.
Lex Fridman
You’re mocking that. There’s a lot of people that will … There’s neocons that say basically, “Invade everything. Let’s make money off of war.”
You’re mocking that. There’s a lot of people that will … There’s neocons that say basically, “Invade everything. Let’s make money off of war.”
But there is people that will say that Operation Midnight Hammer is actually a focused, hard demonstration of strength. A piece of strength that is an effective way to do geopolitics. There’s cases to be made for all of it.
Scott Horton
If we’re really lucky.
If we’re really lucky.
Lex Fridman
So it’s a big risk is your case.
So it’s a big risk is your case.
Mark Dubowitz
So here’s some practical recommendations that I think the United States should follow. I think the first is get the Iranians back to Oman, negotiate with them and do a deal.
So here’s some practical recommendations that I think the United States should follow. I think the first is get the Iranians back to Oman, negotiate with them and do a deal.
Again, the deal has to be no enrichment full dismantlement. I think for the reasons we talked about today, Scott and I passionately disagreed, but that’s fine. This is a reasonable debate. Neither of us is crazy. Neither of us is irrational. It is, what would it take to get a deal with Iran? I’d say, this is the deal. This has to be our red line. Scott disagrees. That’s fine, but we got to get a deal.
In that deal, we got to provide them financial incentives. We’re going to have to lift a certain number of sanctions because they’re going to have to get something in return. We can argue about exactly how much, but I think our opening negotiating position is no-sanctions relief. And then we’ll get negotiated down from that. Right?
I think a lot of this is about how do you position yourself for negotiation? How do you come in with leverage? And then how do you find areas of compromise where you satisfy your objectives? One is Oman. Two is the credible threat of military force needs to remain, right?
Khamenei needs to understand that the United States of America and Israel will use military force to stop him from developing nuclear weapons. If he didn’t believe that before, 12 days ago, he now believes that. And I think that’s the credibility of that military force has to be maintained in order to ensure that he does not break out or sneak out to a nuclear weapon. I think that’s absolutely critical.
Third is I think we have to reach agreements with all the other countries in the Middle East to say, “Hey, listen, we’re demanding zero enrichment and full dismantlement from the Iranians. You don’t get enrichment. And you don’t get a nuclear program that is capable of developing nuclear weapons. Our gold standard is the American standard.”
Civilian nuclear energy, like 23 countries, no enrichment in reprocess. We should be consistent. We should be consistent, not just with American allies, but also very clear with American enemies. I think that’s the third important thing we do.
Fourth is I think it’s really important that we find some accommodation between the Israelis and the Palestinians. We can go down many rabbit holes on that, but I think that lays the predicate for a Saudi-Israeli normalization deal that then brings in multiple Arab countries and Muslim countries.
And finally, is we talked about the Abraham Accords. I think we need to start thinking about what do the Cyrus Accords look like, right? Cyrus was the great Persian king who, by the way, brought the Jews back from the diaspora to Jerusalem. And Cyrus Accords would be, “Let’s find an agreement between the United States and Israel and Iran.” That would be a remarkable transformation in the region if we could actually do that.
So imagine a Middle East, and again, I know this sounds fanciful. But I think this is what Trump has in mind when he starts to talk about the things you’re seeing in these Truth posts. Is actually a Middle East that can be fundamentally transformed where we actually do bring peace between Israel, Iran, Saudi Arabia, and the rest of these countries.
I, by the way, completely agree with you on Syria. The idea that we are trusting a former Al-Qaeda ISIS jihadist to rule Syria, I think is a big bet President Trump has made. He’s made it on the advice of MBS. We’ll see how that transforms or transpires, and see if Syria is transformed. But the notion that somehow we should just be rolling the dice, lifting all the sanctions, and taking this former Al-Qaeda jihadist at his word is a big bet.
If we got the bet right, that is actually a remarkable occurrence because now all of a sudden Syria and Lebanon are brought into this Abraham Accords, Cyrus Accords structure. And then we actually have what I think all three of us want is peace in the Middle East, stability in the Middle East. I don’t think we need democracy in the Middle East.
I think if the Middle East looked like the UAE, that’d be a pretty good Middle East. I think we’d all be pretty comfortable with that if that kind of stability and prosperity. And ultimately, you could put these countries on a pathway to greater democracy. The way that we did during the Cold War where countries like Taiwan and South Korea that were military dictatorships ended up becoming pro-Western democracy.
So that’s, stepping back, maybe a little bit Pollyannish. But I think we should also always keep in mind what a potential vision for peace could look like.
Libertarianism
Lex Fridman
So Scott, as many people know, here in Austin, Texas, you’re the director of the Libertarian Institute. Let’s zoom out a bit. What are the key pillars of libertarianism and how that informs how you see the world?
So Scott, as many people know, here in Austin, Texas, you’re the director of the Libertarian Institute. Let’s zoom out a bit. What are the key pillars of libertarianism and how that informs how you see the world?
Scott Horton
Well, the very basis of libertarianism is the non-aggression principle, which essentially is the same thing as our social rules for dealing with each other in private life. No force, no theft, no fraud, and keep your hands to yourself. And we apply that same moral law to government.
Well, the very basis of libertarianism is the non-aggression principle, which essentially is the same thing as our social rules for dealing with each other in private life. No force, no theft, no fraud, and keep your hands to yourself. And we apply that same moral law to government.
And so some libertarians are anarcho-capitalists. Some are so-called minarchists, meaning we want the absolute minimum amount of government, a night-watchman-type state. In other words, just enough to enforce contracts and protect property rights and allow freedom and a free market to work.
There’s also, of course, natural rights theory, Austrian school economics and a lot of revisionist history. And something very key to libertarian theory is expressed by Murray Rothbard was that war is the key to the whole libertarian business. Because, especially in the United States of America, as long as we maintain a world empire, makes it impossible for us to have a limited and decentralized government here at home as our constitution describes.
And so I was going to crack a joke, but neither of you have called me an isolationist yet. But I was going to joke that yes, as Thomas Jefferson wrote in the Declaration of Isolation, the same guy, a principal author of the Declaration of Isolation, he said in his first inaugural address, “We seek peace, commerce, and honest friendship with all nations and entangling alliances with none.”
And that’s the true libertarian philosophy. Think Dr. Ron Paul, the great Congressman for many years up there. He was opposed to all sanctions, all economic war on the rest of the world, and the entire state of the United States as world empire.
And what’s strange now is that anyone who wants just peace as the standard is considered an isolationist. And people who are for world empire and a permanent state of conflict with the rest of the world, economic war, coups and regime changes, and even invasions, those are considered normal people.
It’s almost like people who want peace should be called cis foreign policy because now we have to come up with a funny word to describe a normal state of being when no one calls Mexico an isolationist state, just because they mind their own business. And is there any faction anywhere in America that calls themselves isolationist?
Even the Paleoconservatives who favor much more trade protectionism and that kind of thing than libertarians, they don’t call themselves isolationists. They still want to have an open relationship with the world to some degree. When isolation means like the hermit kingdom of North Korea or some crazy thing like that. No one wants that for the United States of America. What we want is independence.
Scott Horton
For the United States of America, what we want is independence, non-interventionism and peace.
For the United States of America, what we want is independence, non-interventionism and peace.
Lex Fridman
So to you, isolationism is a kind of dirty word-
So to you, isolationism is a kind of dirty word-
Scott Horton
That’s right. It’s a smear term-
That’s right. It’s a smear term-
Lex Fridman
It’s a smear term.
It’s a smear term.
Scott Horton
Invented by interventionists and internationalists to attack anyone who didn’t want to go along with their agenda. The term itself is used essentially as a smear against anyone who doesn’t want to go to war.
Invented by interventionists and internationalists to attack anyone who didn’t want to go along with their agenda. The term itself is used essentially as a smear against anyone who doesn’t want to go to war.
Lex Fridman
So can you actually just deeper describe what non-interventionism means? So how much display of military strength should be there, do you think?
So can you actually just deeper describe what non-interventionism means? So how much display of military strength should be there, do you think?
Scott Horton
Dr. Paul said, we could defend this country with a couple of good submarines, which by the way, for people who don’t know, one American Trident sub could essentially kill every city and military base in Russia, just one. So he’s absolutely right about that. A couple of good submarines are enough to defend our coast and deter anyone from messing with the United States of America. And then I admit, I’m a little bit idealistic about this, that I think of that old William Jennings Bryan speech, ” Behold the Republic,” where unlike the empires of Europe burdened under the weight of militarism. Here we have a free country and where you know what we could do? We could be the host of peace conferences everywhere. There are frozen conflicts in the Donbass, in Kaliningrad, in Transnistria, in Taiwan, in Korea, virtually all the borders of Africa and Eurasia were drawn by European powers to either divide and conquer their enemies or artificially group their enemies together in order to keep them internally divided and conquered in those ways.
Dr. Paul said, we could defend this country with a couple of good submarines, which by the way, for people who don’t know, one American Trident sub could essentially kill every city and military base in Russia, just one. So he’s absolutely right about that. A couple of good submarines are enough to defend our coast and deter anyone from messing with the United States of America. And then I admit, I’m a little bit idealistic about this, that I think of that old William Jennings Bryan speech, ” Behold the Republic,” where unlike the empires of Europe burdened under the weight of militarism. Here we have a free country and where you know what we could do? We could be the host of peace conferences everywhere. There are frozen conflicts in the Donbass, in Kaliningrad, in Transnistria, in Taiwan, in Korea, virtually all the borders of Africa and Eurasia were drawn by European powers to either divide and conquer their enemies or artificially group their enemies together in order to keep them internally divided and conquered in those ways.
So there are great many borders in the world that are in contention and that people might even want to fight about. And I think that America could play a wonderful role in helping to negotiate and resolve those types of conflicts without resorting to force or even making any promises on the part of the US government, like we’ll pay Egypt to pretend to be nice to Israel or anything like that, but just find ways to host conferences and find resolutions to these problems. And I think quite sincerely that Donald Trump right now could get on a plane to Tehran. He could then go to Moscow, to Beijing and Pyongyang, and he could come home and be Trump The Great. We in fact don’t have to have, especially the American hyper power as the French called it, of the World Empire. We have everything to give and nothing to lose to go ahead. And Donald Trump even talked like this.
You might remember when he first was sworn in this time, he said, “You know what? Instead of pivoting from terrorism to great power competition with Russia and China, I don’t want to do that. I just want to get along with both of them. Let’s just move on and have the rest of the century be peace and prosperity and not fighting at all. Why should we have to pivot to China? Let’s just pivot to capitalism and trade and freedom. And peace.” That’s America first.
Lex Fridman
Yeah, I’ve criticized Trump a lot, but I think maybe he’s just rhetoric, but I think he talks about peace a lot. Even just recently, the number of times the word peace is mentioned and with seriousness, not you get a genuine desire for peace from him. And that’s just beautiful to see for the leader of this country.
Yeah, I’ve criticized Trump a lot, but I think maybe he’s just rhetoric, but I think he talks about peace a lot. Even just recently, the number of times the word peace is mentioned and with seriousness, not you get a genuine desire for peace from him. And that’s just beautiful to see for the leader of this country.
Scott Horton
And look, man, there used to be a time when a third of the planet was dominated by the communists, right? So I’m not going to sit here and argue the first Cold War with you. My book’s about the second one, and I’m not as good on the first. But since the end of the first Cold War, we have let the neoconservative policy of the defense planning guidance of ’92 and rebuilding America’s defenses and the rest of this American dominance-centered policy control our entire direction in the world. It’s led to the war on terrorism in the Middle East, seven countries we’ve attacked. It’s led to the disaster in Eastern Europe, and it’s leading toward disaster in Eastern Asia when there’s just no reason in the world that it has to be this way with the commies dead and gone.
And look, man, there used to be a time when a third of the planet was dominated by the communists, right? So I’m not going to sit here and argue the first Cold War with you. My book’s about the second one, and I’m not as good on the first. But since the end of the first Cold War, we have let the neoconservative policy of the defense planning guidance of ’92 and rebuilding America’s defenses and the rest of this American dominance-centered policy control our entire direction in the world. It’s led to the war on terrorism in the Middle East, seven countries we’ve attacked. It’s led to the disaster in Eastern Europe, and it’s leading toward disaster in Eastern Asia when there’s just no reason in the world that it has to be this way with the commies dead and gone.
And again, to stipulate here, the Chinese flag is still red. It’s still a one-party dictatorship, but they have abandoned Marxism. I mean, people were starving to death by the tens of millions there. It’s a huge, it’s probably the greatest improvement in the condition of mankind anywhere ever in the shortest amount of time when Deng Xiaoping in the right of the Communist Party took over in that country.
Lex Fridman
Just one more thing. You mentioned the two submarines. What’s the role of nuclear weapons?
Just one more thing. You mentioned the two submarines. What’s the role of nuclear weapons?
Scott Horton
Well, I would like for America to have an extremely minimal nuclear deterrent and work toward a world free of nuclear weapons. And I know that that sounds utopian. However, I would remind your audience that Ronald Reagan and Mikhail Gorbachev came within a hair of achieving a deal just like that at Reykjavik Iceland in 1986, and they were both of them dead serious about it, complete and total nuclear disarmament. Then Reagan was essentially bullied by Richard Pearl and others on his staff saying, “You promised the American people that you would build them a defensive anti-missile system, the Star Wars system,” which was total pie in the sky, technological fantasy of the 1980s. And if you’re getting rid of all the ICBMs, then why the hell do you need a missile shield anyway? Is the world’s probably greatest tragedy that ever took place that Ronald Reagan walked away from those negotiations.
Well, I would like for America to have an extremely minimal nuclear deterrent and work toward a world free of nuclear weapons. And I know that that sounds utopian. However, I would remind your audience that Ronald Reagan and Mikhail Gorbachev came within a hair of achieving a deal just like that at Reykjavik Iceland in 1986, and they were both of them dead serious about it, complete and total nuclear disarmament. Then Reagan was essentially bullied by Richard Pearl and others on his staff saying, “You promised the American people that you would build them a defensive anti-missile system, the Star Wars system,” which was total pie in the sky, technological fantasy of the 1980s. And if you’re getting rid of all the ICBMs, then why the hell do you need a missile shield anyway? Is the world’s probably greatest tragedy that ever took place that Ronald Reagan walked away from those negotiations.
They literally were within a hair and it wasn’t magic and there was no trust in evil, bad guys. This is, by the way, two years before the wall came down, this is when everybody still thought the USSR was going to last. And Reagan, the plan was that America and the Soviet Union would dismantle our nuclear weapons until we were right around parity with the other nuclear weapon states who all have right around two or 300 nukes, France, Britain at that time, Israel and China, India and Pakistan came later. South Africa only had a few of them, but gave up whatever they had. And the idea was we would get down to two or 300 and then America and the Soviet Union both together would lean hard on Britain, France, and China, let’s all get down to 100. Let’s all see if we can get down to 50, etc. Like that in stages. Again, Ronald Reagan we’re talking about here, trust but verify means do not trust at all. It means be polite while you verify.
And in fact, America did help dismantle upwards of 60 something thousand Soviet nuclear missiles after the end of the Cold War. And so it is possible to live in a world where at the very least we have a situation where the major powers have a few nukes and potentially can even come to an arrangement to get rid of the rest.
Lex Fridman
We should also just say one more thing, not to be ageist, but most of the major leaders with nukes and those with power in the world are in their 70s and 80s. I don’t know if that contributes to it, but they kind of are grounded in a different time. I have a hope for the fresher, younger leaders to have a more optimistic view towards peace and to be able to reach towards peace.
We should also just say one more thing, not to be ageist, but most of the major leaders with nukes and those with power in the world are in their 70s and 80s. I don’t know if that contributes to it, but they kind of are grounded in a different time. I have a hope for the fresher, younger leaders to have a more optimistic view towards peace and to be able to reach towards peace.
Scott Horton
And underlying so much of what we’re talking about here is all this enmity, but if America could just work, remember when China cut that pseudo sort of peace deal between Saudi and Iran a couple of years ago or last year was it? We could try to double up on that. We could try to come up with ways for Saudi and Iran to exchange as much as possible. I know you don’t like all the going back too far in history, but it’s important. It’s in my book that in 1993, Zbigniew Brzezinski, who the revolution had happened on his watch Operation Eagle Claw, the disaster of the rescue mission in ’79 after the hostage crisis and everything, all that egg was on ZB’s face. But in ’93 he said, “We should normalize relations. We should build an oil pipeline across Iran so they can make money. We can make money and we can start to normalize.”
And underlying so much of what we’re talking about here is all this enmity, but if America could just work, remember when China cut that pseudo sort of peace deal between Saudi and Iran a couple of years ago or last year was it? We could try to double up on that. We could try to come up with ways for Saudi and Iran to exchange as much as possible. I know you don’t like all the going back too far in history, but it’s important. It’s in my book that in 1993, Zbigniew Brzezinski, who the revolution had happened on his watch Operation Eagle Claw, the disaster of the rescue mission in ’79 after the hostage crisis and everything, all that egg was on ZB’s face. But in ’93 he said, “We should normalize relations. We should build an oil pipeline across Iran so they can make money. We can make money and we can start to normalize.”
And Ronald Reagan’s secretary of state, Alexander Haig, who had been Kissinger’s right-hand man, agreed. They both were trying to push that. But the Clinton administration went ahead with Martin Indick who had been Yitzhak Shamir’s man and inaugurated the dual containment policy instead, because the Israelis were concerned that America had just beaten up on Iraq so bad in Iraq War one that now Iraq wasn’t powerful enough to balance against Iran, so America had to stay in Saudi to balance against them both. And that was the origin of the dual containment policy. It was Martin Indick who had been Yitzhak Shamir’s man who pushed it on Clinton. And this was not the Israelis, it was the Kuwaitis who lied that there was a truck bomb attempt assassination against HW Bush, which was a total hoax. It was debunked by Seymour Hersh by the end of the year.
It was just a whiskey smuggling ring, and it was the same guy whose daughter had claimed to have seen the Iraqi soldiers throw the babies out of the incubators. He was the guy who two years later made up this hoax about Saddam Hussein trying to murder Bush Senior. But when he did, that was when Bill Clinton finally gave in and adopted the dual-containment policy, because he had been interested in potentially reaching out to Saddam and the Ayatollah both at that time, but instead of having normalization with both, we had to have permanent Cold War through the end of the century with both. And my argument is simply, it just didn’t have to be that way. It’s the same thing with Russia. Look at how determined the Democrats especially are to have this conflict with Russia where to Donald Trump? Nah, not at all. We could get along with them. And so it’s perfectly within reason.
If Zbigniew Brzezinski says, we can talk with Iran and get along with Iran, and Donald Trump says we can get along with Russia, then the same thing for North Korea, the same thing for China. And then who do we have left to fight? Hezbollah?
Hezbollah’s, nothing without Iran.
Mark Dubowitz
But to just have Scott and I fighting-
But to just have Scott and I fighting-
Lex Fridman
That’s a fund kind of fight.
That’s a fund kind of fight.
Mark Dubowitz
Fun and peaceful.
Fun and peaceful.
Foundation for Defense of Democracies (FDD)
Lex Fridman
Mark, you’re the CEO of FDD, the Foundation for Defense of Democracies, it’s a DC-based organization that focuses on national security and foreign policy. What has been your approach to solving some of these problems of the world?
Mark, you’re the CEO of FDD, the Foundation for Defense of Democracies, it’s a DC-based organization that focuses on national security and foreign policy. What has been your approach to solving some of these problems of the world?
Mark Dubowitz
So look, I love the vision that Scott painted, and I agree with some of the libertarian instincts that he has, but my view is that America is the indispensable power. Scott mentioned earlier in the conversation about the rules-based order that is so important and the NPT and all these rules-based agreements that are important to maintain. Well, the rules-based order has been maintained by the United States since World War II. There is no American prosperity to the degree that we have. There’s no recovery of Europe, there’s no recovery of Asia after the devastation of World War II without American power and the rules-based order that America has led and back stopped.
So look, I love the vision that Scott painted, and I agree with some of the libertarian instincts that he has, but my view is that America is the indispensable power. Scott mentioned earlier in the conversation about the rules-based order that is so important and the NPT and all these rules-based agreements that are important to maintain. Well, the rules-based order has been maintained by the United States since World War II. There is no American prosperity to the degree that we have. There’s no recovery of Europe, there’s no recovery of Asia after the devastation of World War II without American power and the rules-based order that America has led and back stopped.
I think America first is about American power and deterrence. I think if you want to avoid war, I think you cannot just believe in some fantasy where all the world’s leaders are going to get together in some place and are just going to agree to disarm all their nuclear weapons and we’ll disarm our entire military and we’ll have one submarine off our coast. And some of all of that is going to lead to peace. I mean, I think what has led to peace in the past has been American for deterrence of our military and a belief that our enemies think we will credibly use it. I think if they believe we’ll credibly use it, then it’s less likely they will challenge us. And if they less likely to challenge us and challenge our allies, there’s less likely to be war. So for me, deterrence leads to peace and any kind of unilateral disarmament, any kind of, I think sort of fanciful notion that somehow our enemies are going to respect the non-aggression principle that is the core fundamental underpinnings of libertarianism, which I think in a personal relationship I think is very important.
But remember, these are aggressors, they don’t respect the non-aggression principle. I think we can spend a lot of time, we did over how many hours now has it been talking about the fact that in Scott’s view of the world, it’s America that provokes, it’s America that provokes, and then if not America provoking, it’s Israel provoking. And oh, by the way, America provokes because we’re being seduced or paid or brow beaten by those Israelis and those Jews in America. I mean, I think that whole notion that somehow we are the provocative force in global politics, I think is wrong. I think the fact of the matter is we make mistakes. We are an imperfect nation. We have made some serious, sometimes catastrophic mistakes, but there is a bad world out there. There are evil men who want to do us harm and we have to prevent them from doing us harm.
And to do that, we need an American military that is serious and well supported. We don’t need a military industrial complex that ultimately is going to pull us into wars. We need thoughtful leaders like President Trump who will resist that and will say, “At the end of the day, I will use force when it is selective, narrow, overwhelming, and deadly.” And that was Trump’s operation just a few days ago. He went after three key facilities that were being used to develop the capability for nuclear weapons. Nuclear weapons are the greatest danger to humanity. I totally agree with Scott. I think a world without nuclear weapons, the kind of world that Reagan envisioned and others have envisioned since is really the only way we can eliminate the most devastating weapons that could end humankind. But we have to make sure that those weapons don’t end up in the hands of regimes that seek to do us harm and that have done us harm over many, many decades.
So yeah, I mean deterrence, peace through strength, rules-based order. The foundation for defense of democracies is not the foundation for promotion of democracy. We don’t believe in this important concept that we have to promote democracy around the world. I’ll speak for myself, because we have many people at my think tank. We’re 105 people. We have different views. I don’t personally believe that it is the role of the United States to bring democracy to the Middle East or democracy around the world. I think to the extent we’ve tried, we failed. I’m not sure the Middle East is ready for democracy. Now, Iran is interesting because it’s not an Arab country. It is a different country altogether. Culturally, it’s a very sophisticated country. It has a long history. It actually has a history where it has had democracy in the past. It is a country that I think could have incredible potential under the right leadership and under right circumstances.
I don’t know if the right circumstances are a constitutional monarchy with Reza Pahlavi as the Crown Prince or the Shah. I don’t don’t know whether it’s a secular democracy or not. Let Iranians make that decision.
Scott Horton
Have I been pronouncing it wrong this whole time?
Have I been pronouncing it wrong this whole time?
Mark Dubowitz
Reza Pahlavi?
Reza Pahlavi?
Scott Horton
You know the guy?
You know the guy?
Mark Dubowitz
I met him, yeah.
I met him, yeah.
Scott Horton
Pahlavi.
Pahlavi.
Mark Dubowitz
Pahlavi.
Pahlavi.
Lex Fridman
What were you saying?
What were you saying?
Scott Horton
I thought it was Pahlavi.
I thought it was Pahlavi.
Lex Fridman
Oh wow.
Oh wow.
Mark Dubowitz
No, it’s okay. It’s okay.
No, it’s okay. It’s okay.
Lex Fridman
Heartbreaking.
Heartbreaking.
Scott Horton
Seriously, who knew?
Seriously, who knew?
Mark Dubowitz
The only thing you’ve ever gotten wrong for pronouncing [inaudible 03:21:21] that’s not bad. That’s
The only thing you’ve ever gotten wrong for pronouncing [inaudible 03:21:21] that’s not bad. That’s
Lex Fridman
Pronouncing so many things correctly, I think people will give you a pass.
Pronouncing so many things correctly, I think people will give you a pass.
Scott Horton
Can I ask you though? I mean all this militarization has led to a state of permanent war. We’ve been bombing Iraq for 34 years. We put a war against the Taliban who didn’t attack us instead of Al-Qaeda who did fought for 20 years, and the Taliban won anyway. We overthrew or launched an aggressive war against Saddam Hussein put the Ayatollah’s best friends in power, launched an aggressive war against Libya on this ridiculous hoax that Gaddafi was about to murder every last man, woman, and child in Benghazi. Imagine Charlotte, North Carolina being wiped off the map, Barack Obama lied in order to start that war and completely destroyed Libya. It’s now three pieces in a state of semi-permanent civil war including, and this wasn’t just back then, this is to this day the re-legalization and re-institutionalization of chattel slavery of sub-Saharan Black Africans in Libya to this day, as a result.
Can I ask you though? I mean all this militarization has led to a state of permanent war. We’ve been bombing Iraq for 34 years. We put a war against the Taliban who didn’t attack us instead of Al-Qaeda who did fought for 20 years, and the Taliban won anyway. We overthrew or launched an aggressive war against Saddam Hussein put the Ayatollah’s best friends in power, launched an aggressive war against Libya on this ridiculous hoax that Gaddafi was about to murder every last man, woman, and child in Benghazi. Imagine Charlotte, North Carolina being wiped off the map, Barack Obama lied in order to start that war and completely destroyed Libya. It’s now three pieces in a state of semi-permanent civil war including, and this wasn’t just back then, this is to this day the re-legalization and re-institutionalization of chattel slavery of sub-Saharan Black Africans in Libya to this day, as a result.
Our intervention, this was not a direct overt war, but America, Israel, Saudi, Qatar, and Turkey all backed the Bin Ladenites in Syria completely destroyed Syria to the point where the caliphate grew up. And then we had to launch Iraq War III to destroy the caliphate again. And so I’m not seeing the peace through strength. I’m seeing permanent militarism and permanent war through strength
Lex Fridman
Point well made. He’s speaking to the double-edged sword of a strong military that what you mentioned that Trump did, seems like a very difficult thing to do, which is keep it hit hard and keep it short.
Point well made. He’s speaking to the double-edged sword of a strong military that what you mentioned that Trump did, seems like a very difficult thing to do, which is keep it hit hard and keep it short.
Scott Horton
We don’t know how this ended yet.
We don’t know how this ended yet.
Lex Fridman
But even the beginning part is not trivial to do. Just hitting one mission and vocalizing except for one post, no regime change, really pushing peace, make a deal, ceasefire like that’s an uncommon way to operate. So I guess you said that we should resist the military industrial complex. That’s not easy to do. That’s the double-edged sword of a strong military.
But even the beginning part is not trivial to do. Just hitting one mission and vocalizing except for one post, no regime change, really pushing peace, make a deal, ceasefire like that’s an uncommon way to operate. So I guess you said that we should resist the military industrial complex. That’s not easy to do. That’s the double-edged sword of a strong military.
Scott Horton
Oh, I forgot Yemen. Let me say real quick, and I promise… Look, I’m going to say one thing then and then I’ll stop.
Oh, I forgot Yemen. Let me say real quick, and I promise… Look, I’m going to say one thing then and then I’ll stop.
Mark Dubowitz
You’ve made your point.
You’ve made your point.
Scott Horton
I just want to add that this is a really important point, okay. Is grassroots efforts. There is no Houthi lobby in America. It was grassroots efforts by libertarians, Quakers, and leftists to get War Powers resolutions introduced in Trump’s first term to stop war in Yemen, which was launched not for Israel, for Saudi Arabia and UAE by Barack Obama in 2015.
I just want to add that this is a really important point, okay. Is grassroots efforts. There is no Houthi lobby in America. It was grassroots efforts by libertarians, Quakers, and leftists to get War Powers resolutions introduced in Trump’s first term to stop war in Yemen, which was launched not for Israel, for Saudi Arabia and UAE by Barack Obama in 2015.
Mark Dubowitz
Well, that’s a first.
Well, that’s a first.
Scott Horton
It’s not a first. The Afghan war wasn’t about Israel either. Okay, but this Yemen war was-
It’s not a first. The Afghan war wasn’t about Israel either. Okay, but this Yemen war was-
Mark Dubowitz
I thought 9/11 was about Israel.
I thought 9/11 was about Israel.
Scott Horton
Well, it was in great part, but the decision to sack Cobble and do a regime change and all that had nothing to do with the Likud whatsoever other than, well, we got to keep the war going long enough to go to Baghdad.
Well, it was in great part, but the decision to sack Cobble and do a regime change and all that had nothing to do with the Likud whatsoever other than, well, we got to keep the war going long enough to go to Baghdad.
Mark Dubowitz
Oh, okay. So it was Israel’s fault.
Oh, okay. So it was Israel’s fault.
Scott Horton
I was in the middle of saying about the war in Yemen that we got the war powers resolution through twice, and Trump vetoed it twice. And his man, Pete Navarro, explained to the New York Times that this was just welfare for American industry. A lot of industrialists were angry about the tariffs disrupting trade with China, and somehow they substituted Raytheon for all American industry somehow and said, industry will be happy if we funnel a lot of money to Raytheon. That’s Pete Navarro talking to the New York Times about why they continued the war in Yemen throughout Trump’s entire first term. He had no interest in it at all. The whole thing was it was Obama’s fault. The whole thing was essentially on autopilot. And what was he doing? He’s flying Al-Qaeda’s Air Force against the Houthis, who originally, if you go back to January of 2015, America was passing intelligence to the Houthis to use to kill Al-Qaeda. You know AQAP, the guys that tried to blow up the plane over Detroit with the underpants bomb on Christmas Day 2009 that did all those horrific massacres in Europe, real As Bin Ladinist terrorists.
I was in the middle of saying about the war in Yemen that we got the war powers resolution through twice, and Trump vetoed it twice. And his man, Pete Navarro, explained to the New York Times that this was just welfare for American industry. A lot of industrialists were angry about the tariffs disrupting trade with China, and somehow they substituted Raytheon for all American industry somehow and said, industry will be happy if we funnel a lot of money to Raytheon. That’s Pete Navarro talking to the New York Times about why they continued the war in Yemen throughout Trump’s entire first term. He had no interest in it at all. The whole thing was it was Obama’s fault. The whole thing was essentially on autopilot. And what was he doing? He’s flying Al-Qaeda’s Air Force against the Houthis, who originally, if you go back to January of 2015, America was passing intelligence to the Houthis to use to kill Al-Qaeda. You know AQAP, the guys that tried to blow up the plane over Detroit with the underpants bomb on Christmas Day 2009 that did all those horrific massacres in Europe, real As Bin Ladinist terrorists.
The Houthis were our allies against them before Barack Obama stabbed them in the back. And why did Trump keep that going when he inherited that horrific war from Barack Obama? Why did he do it? According to his trade guy so that they could keep funneling American taxed and inflated dollars into the pocketbooks of stockholders of Raytheon Incorporated.
Lex Fridman
Right, military, industrial complex. The point was made.
Right, military, industrial complex. The point was made.
Mark Dubowitz
Yeah, maybe I could respond to that, because I mean, again, it’s always America’s fault according Scott.
Yeah, maybe I could respond to that, because I mean, again, it’s always America’s fault according Scott.
Lex Fridman
Just take jab at each other.
Just take jab at each other.
Mark Dubowitz
No, no but it’s just-
No, no but it’s just-
Scott Horton
Saudi and UAE asked Barack Obama for permission to start that war and for American help in prosecuting it, and he said yes, and helped them do it.
Saudi and UAE asked Barack Obama for permission to start that war and for American help in prosecuting it, and he said yes, and helped them do it.
Mark Dubowitz
I’m going to segue into an answer, because I think it deserves an answer. Military industrial complex is a serious concern because I think you’re right. The bigger it gets, and the more weapons you have, you think the more the greater the temptation to use it, right? I think that’s sort of the argument. And then there’s also self enrichment and how much money can be made, and all of that I think is of serious concern to people. Look, I think Trump is somebody who, it’s hard pressed to say that Donald Trump is a great advocate of the military industrial complex, or that he is in their pocket the same way that he’s in the pocket of the Israelis and in the pocket of the Saudis and in the pocket of everybody. I mean, I think the one thing with Trump is that Trump, he has learned the lessons of American engagement over the past few decades, and I think Scott’s done a good job of laying out the mistakes that have been made, even though we can discuss about causal connections and who’s responsible. And I lean on-
I’m going to segue into an answer, because I think it deserves an answer. Military industrial complex is a serious concern because I think you’re right. The bigger it gets, and the more weapons you have, you think the more the greater the temptation to use it, right? I think that’s sort of the argument. And then there’s also self enrichment and how much money can be made, and all of that I think is of serious concern to people. Look, I think Trump is somebody who, it’s hard pressed to say that Donald Trump is a great advocate of the military industrial complex, or that he is in their pocket the same way that he’s in the pocket of the Israelis and in the pocket of the Saudis and in the pocket of everybody. I mean, I think the one thing with Trump is that Trump, he has learned the lessons of American engagement over the past few decades, and I think Scott’s done a good job of laying out the mistakes that have been made, even though we can discuss about causal connections and who’s responsible. And I lean on-
Scott Horton
Can we? I want to.
Can we? I want to.
Mark Dubowitz
Well, Scott, can I finish? Because your causal connection is always, it’s America aggressing, Israel aggressing, and all these poor people responding to us. But nonetheless, I think Trump has, he’s learned the lessons, but he hasn’t over-learned the lessons. He’s not paralyzed by Iraq or Afghanistan or the mistakes made by his predecessors. He understands that at the end of the day, we need serious American power. We need lethal power. We need four deterrence. And he’s been very careful and very selective about how he uses American power. I mean, we’ve talked about it throughout this whole conversation. Trump used American power to kill Qasem Soleimani, one of the world’s most dangerous terrorists. He killed Baghdadi, the head of ISIS, one of the world’s most dangerous terrorists.
Well, Scott, can I finish? Because your causal connection is always, it’s America aggressing, Israel aggressing, and all these poor people responding to us. But nonetheless, I think Trump has, he’s learned the lessons, but he hasn’t over-learned the lessons. He’s not paralyzed by Iraq or Afghanistan or the mistakes made by his predecessors. He understands that at the end of the day, we need serious American power. We need lethal power. We need four deterrence. And he’s been very careful and very selective about how he uses American power. I mean, we’ve talked about it throughout this whole conversation. Trump used American power to kill Qasem Soleimani, one of the world’s most dangerous terrorists. He killed Baghdadi, the head of ISIS, one of the world’s most dangerous terrorists.
He refrained from going after the Iranian take down of our drone. He refrained from when the Iranians fired on Saudi Aramco and took off 20% of our oil. He’s been very, very selective about the use of American power. He did go after the Houthis who are Iran backed, and were using Iranian missiles to go after our ships.
Scott Horton
That’s not true. Those are North Korean missiles completely debunked by Janes’ Defense Weekly. Nice try.
That’s not true. Those are North Korean missiles completely debunked by Janes’ Defense Weekly. Nice try.
Mark Dubowitz
Yeah, nice try. Anyway, everybody knows that the Iranians have been financing the Houthis. Hezbollah has been training the Houthis, and Iran has given capabilities to the Houthis to develop their own indigenous missile capability. The fact of the matter is he did in a way go after the Houthis much more intensively than Biden did in order to prevent them from continuing to shut down Red Sea shipping on which both America and our allies depend as a trade route. He actually did it quite successfully because after a few days of pretty intensive bombing, the Houthis got the message and they cut a deal with Donald Trump, they’re not going to interfere with our ships anymore.
Yeah, nice try. Anyway, everybody knows that the Iranians have been financing the Houthis. Hezbollah has been training the Houthis, and Iran has given capabilities to the Houthis to develop their own indigenous missile capability. The fact of the matter is he did in a way go after the Houthis much more intensively than Biden did in order to prevent them from continuing to shut down Red Sea shipping on which both America and our allies depend as a trade route. He actually did it quite successfully because after a few days of pretty intensive bombing, the Houthis got the message and they cut a deal with Donald Trump, they’re not going to interfere with our ships anymore.
Scott Horton
He got a deal with them. They kept bombing Israel, which is what got him involved in the first place. He completely backed out. Sounds to me like they won, and he backed down.
He got a deal with them. They kept bombing Israel, which is what got him involved in the first place. He completely backed out. Sounds to me like they won, and he backed down.
Mark Dubowitz
Well, it sounds like in terms of promoting American national security interests, it sounds like he did a pretty good job of sending a message to the Houthis and the Iranians don’t mess with the United States, and that gets us to the contemporary reality. He took a decision one day on one day to send our B2s and our subs in order to severe damage to three nuclear facilities. It was a one day campaign. It was selective. It was narrow, it was overwhelming. And I think it sends a message to Khamenei. I think it sends a message to regimes around the world, anti-American regimes around the world, that Donald Trump has not over-learned the lessons of the past 20 years, but that in fact, he is not going to dismantle the U.S military and dismantle our nuclear program and fly around through all these cities and call peace conferences and hope that these dictators will just sit down with America and say, “You know what? All is forgiven the United States of America. It’s all your fault. You did this all. We admit our responsibility,” and then we have peace and paradise on earth.
Well, it sounds like in terms of promoting American national security interests, it sounds like he did a pretty good job of sending a message to the Houthis and the Iranians don’t mess with the United States, and that gets us to the contemporary reality. He took a decision one day on one day to send our B2s and our subs in order to severe damage to three nuclear facilities. It was a one day campaign. It was selective. It was narrow, it was overwhelming. And I think it sends a message to Khamenei. I think it sends a message to regimes around the world, anti-American regimes around the world, that Donald Trump has not over-learned the lessons of the past 20 years, but that in fact, he is not going to dismantle the U.S military and dismantle our nuclear program and fly around through all these cities and call peace conferences and hope that these dictators will just sit down with America and say, “You know what? All is forgiven the United States of America. It’s all your fault. You did this all. We admit our responsibility,” and then we have peace and paradise on earth.
I think Trump is much more pragmatic and in some respects, cynical when he looks at the world and he realizes the world is a dangerous place, I have to be very careful about how I use American military forces. I am not going to send hundreds of thousands of people around the world. By the way, I mean, we all talk about Israel. I mean, the Israelis are one of the best allies we could possibly have. They fight and they die in their own defense. They fought multiple wars against American enemies. They haven’t asked for American troops on the ground. There are no boots on the ground in Israel defending Israel. The best we’ve given them is we’ve given them a fad system to help them shoot down ballistic missiles that have aimed at them.
And our American pilots have been in the air recently with our Israeli friends shooting down ballistic missiles. But the Israelis have had a warrior ethos, we will fight and we will die in our own defense. I would just say, if you’re going to actually build out a model where you’re going to minimize the risk to American troops, let’s find more allies like that. I worry about, I’m like, Scott, I really worry about China, Taiwan. I really, really worry about that because the Taiwanese are not capable of defending themselves without U.S assistance. And we may have to send American men and women to go defend Taiwan, and we can have a whole debate about the wisdom of that. But again, it would be very, very helpful to have more Israelis in the world, more countries that are capable of fighting against common enemies and against common threats without having to always put American boots on the ground in order to do that.
Trump and Peacemaking process
Lex Fridman
So you made a case for, if it’s okay, you made a case for strength here. Just practically speaking, why do you think Trump has talked about peace a lot, why do you think he hasn’t been able to get to a ceasefire with Ukraine and Russia, for example? If we just move away from Iran without getting into the history of the whole thing, why he’s been talking peace, peace, peace, peace, peace. He’s been pushing it and pushing it. What can we learn about that so far failure, that’s also instructed for Iran?
So you made a case for, if it’s okay, you made a case for strength here. Just practically speaking, why do you think Trump has talked about peace a lot, why do you think he hasn’t been able to get to a ceasefire with Ukraine and Russia, for example? If we just move away from Iran without getting into the history of the whole thing, why he’s been talking peace, peace, peace, peace, peace. He’s been pushing it and pushing it. What can we learn about that so far failure, that’s also instructed for Iran?
Mark Dubowitz
Look, I’m not a Russia expert. I’m not a Ukraine expert. I’m sitting in front of two people who know a lot more about that conflict than I do.
Look, I’m not a Russia expert. I’m not a Ukraine expert. I’m sitting in front of two people who know a lot more about that conflict than I do.
Lex Fridman
You are, we should say, banned by Putin.
You are, we should say, banned by Putin.
Mark Dubowitz
I am. I have been sanctioned by Russia and by Iran.
I am. I have been sanctioned by Russia and by Iran.
Lex Fridman
Sanctioned. Yes.
Sanctioned. Yes.
Mark Dubowitz
Yes. Banned, sanctioned, threatened.
Yes. Banned, sanctioned, threatened.
Lex Fridman
Congratulations.
Congratulations.
Mark Dubowitz
Thank you. Thank you. Well, it causes some difficulties. But anyway, I think the answer to that is that for Putin, he needs to understand that like Khamenei, he has two options here. Option one, which President Trump has signaled over and over and over again is come sit down and negotiate a ceasefire with the Ukrainians. I don’t want to get into the details and the back and forth about who’s responsible for the fact there’s no ceasefire, Putin or Zelensky. I mean, that’s a whole other debate, and I’m sure you guys have a lot of opinions on that. But path one is sit down and let’s negotiate a ceasefire. Path two is the United States will use American power in order to build our leverage so that Vladimir Putin understands that he has to do a ceasefire. Now, I’m not suggesting US troops, absolutely not. What I am suggesting is, there’s a package right now of sanctions that have ADA co-sponsors in the Senate across party lines.
Thank you. Thank you. Well, it causes some difficulties. But anyway, I think the answer to that is that for Putin, he needs to understand that like Khamenei, he has two options here. Option one, which President Trump has signaled over and over and over again is come sit down and negotiate a ceasefire with the Ukrainians. I don’t want to get into the details and the back and forth about who’s responsible for the fact there’s no ceasefire, Putin or Zelensky. I mean, that’s a whole other debate, and I’m sure you guys have a lot of opinions on that. But path one is sit down and let’s negotiate a ceasefire. Path two is the United States will use American power in order to build our leverage so that Vladimir Putin understands that he has to do a ceasefire. Now, I’m not suggesting US troops, absolutely not. What I am suggesting is, there’s a package right now of sanctions that have ADA co-sponsors in the Senate across party lines.
And I think Trump is using that and will use that as a sort of Damocles hanging over Putin and the Russian economy to say, “Look, if Vladimir, we either do a ceasefire or I’m going to have no choice but to have to start imposing much more punishing sanctions on you and on the Russian economy.” So I think there’s an economic option. I think there’s a military option. And I think the biggest mistake Biden made in this whole war, and there’s many mistakes in terms of signaling not having US credibility. Afghan debacle, which signaled to Putin that he could invade without any kind of American response is he kind of went in and he tied Ukraine’s hands behind their back. I mean, he actually tied one hand behind their back while they were fighting with the other hand. And he refused to give him the kinds of systems that early on in the war would’ve allowed the Ukrainian military to be able to hit Russian forces that were mobilizing on the Russian-Ukrainian border.
And I think if he had done that, I think this war would’ve ended sooner. There’d be far less casualties. And I think Putin would then understand maybe I need to strike a deal. I’m not a Russia expert or Ukraine expert. I don’t know what the deal looks like. You keep the Donbas, you keep Crimea, you keep larger chunks of Eastern Ukraine. That’s for smarter people than me on this issue to decide what the deal looks like. But there’s no doubt today Putin thinks that he can just keep fighting, keep killing Ukrainians, keep driving forward. Eventually, he’s going to wear down the Ukrainians through a sheer war of attrition. He’ll throw hundreds of thousands of Russians at this. He doesn’t care how many Russians are going to die.
That’s the way that Russians and the Soviets have fought wars for many, many years. Just endless number of Russian bodies being thrown into the meat grinder. He thinks he can continue without any consequences. And I worry that as a result of the fact that we are not showing Putin that we’ve got leverage, it’s made war more likely, it’s made a war more brutal, and it’s going to make a war more proactive.
Lex Fridman
Increasing military aid to Ukraine, in the case that you described, also has to be coupled with extreme pressure to make peace.
Increasing military aid to Ukraine, in the case that you described, also has to be coupled with extreme pressure to make peace.
Mark Dubowitz
Correct. Extreme pressure to make peace,
Correct. Extreme pressure to make peace,
Lex Fridman
Which Trump hopefully appears to be doing now in Iran.
Which Trump hopefully appears to be doing now in Iran.
Mark Dubowitz
I think Trump is early… I mean, it’s interesting you said that because he’s early indicators. Again, who knows where the ceasefire goes. But I think it was important he slapped Khamenei, but he also said to Bibi, “Enough, enough.” And it’s like, okay, now we’re going back to Oman. There’s going to be a temporary ceasefire. Now let’s negotiate. And I think that’s important. And I think it shows that Donald Trump is leading, not following. It shows that Donald Trump is his own man, not on the payroll of the Russians or the Iranians or the Israelis or all these other crazy accusations that have been made about this guy for many, many years. And he’s going to give, as they say, peace a chance, and he’s going to give a ceasefire a chance. He’s going to give negotiations a chance. But I’ll think he’s sending the message to the Iranians and he needs to send it to Putin is, if you don’t take me up on my offer, I’ve already demonstrated that I am serious and I will use American power carefully and selectively in the way that I’ve done in the past.
I think Trump is early… I mean, it’s interesting you said that because he’s early indicators. Again, who knows where the ceasefire goes. But I think it was important he slapped Khamenei, but he also said to Bibi, “Enough, enough.” And it’s like, okay, now we’re going back to Oman. There’s going to be a temporary ceasefire. Now let’s negotiate. And I think that’s important. And I think it shows that Donald Trump is leading, not following. It shows that Donald Trump is his own man, not on the payroll of the Russians or the Iranians or the Israelis or all these other crazy accusations that have been made about this guy for many, many years. And he’s going to give, as they say, peace a chance, and he’s going to give a ceasefire a chance. He’s going to give negotiations a chance. But I’ll think he’s sending the message to the Iranians and he needs to send it to Putin is, if you don’t take me up on my offer, I’ve already demonstrated that I am serious and I will use American power carefully and selectively in the way that I’ve done in the past.
WW2
Lex Fridman
At the risk of doing the thing I shouldn’t do. But just to test the ideas of libertarianism and the things we’ve been talking about. Can we, for a brief time unrelated to everything we’ve been talking about, talk about World War II, what was the right thing to do in 1938, 1939? What would you do? Okay. To be clear, World War II has nothing to do with current events. In fact, many of the horrible policies of the United States, in my opinion, have to do with projecting World War II onto every single conflict in the world. Okay.
At the risk of doing the thing I shouldn’t do. But just to test the ideas of libertarianism and the things we’ve been talking about. Can we, for a brief time unrelated to everything we’ve been talking about, talk about World War II, what was the right thing to do in 1938, 1939? What would you do? Okay. To be clear, World War II has nothing to do with current events. In fact, many of the horrible policies of the United States, in my opinion, have to do with projecting World War II onto every single conflict in the world. Okay.
Scott Horton
Agree.
Agree.
Lex Fridman
But-
But-
Mark Dubowitz
Overlearning. Overlearning.
Overlearning. Overlearning.
Scott Horton
Agree.
Agree.
Mark Dubowitz
But overlearning.
But overlearning.
Lex Fridman
Overlearning. But it is an interesting extreme case. Just to clarify, I’m just philosophically talking about at which point do you hit, do you do military intervention, and that’s a nice case. Maybe you have a better case study, but that’s such an extreme one that it’s interesting.
Overlearning. But it is an interesting extreme case. Just to clarify, I’m just philosophically talking about at which point do you hit, do you do military intervention, and that’s a nice case. Maybe you have a better case study, but that’s such an extreme one that it’s interesting.
Scott Horton
We’re talking about Germany or Japan?
We’re talking about Germany or Japan?
Lex Fridman
Germany side. Yeah.
Germany side. Yeah.
Scott Horton
So Japan attacked us and Germany declared war on us. Tough for them. And that’s what happens when you declare war on the United States, you get hit.
So Japan attacked us and Germany declared war on us. Tough for them. And that’s what happens when you declare war on the United States, you get hit.
Lex Fridman
That was idiotic on the part of Hitler to declare war on the United States.
That was idiotic on the part of Hitler to declare war on the United States.
Scott Horton
I never understood why he ever did that. They always said it was just because he was crazy. But what it was is he was trying to get the Japanese to invade the Soviet Union from the East and in order to divide Stalin’s forces, which failed and it didn’t work. And it was a huge blunder from his point of view, I guess.
I never understood why he ever did that. They always said it was just because he was crazy. But what it was is he was trying to get the Japanese to invade the Soviet Union from the East and in order to divide Stalin’s forces, which failed and it didn’t work. And it was a huge blunder from his point of view, I guess.
Lex Fridman
Philosophically from an interventionism perspective, you’re saying United States should have stayed out from that war as long as possible, until they’re attacked?
Philosophically from an interventionism perspective, you’re saying United States should have stayed out from that war as long as possible, until they’re attacked?
Scott Horton
Yes. I mean, look at how powerful they ended up being and the amount of damage that they were able to inflict on the Soviets, better them than us.
Yes. I mean, look at how powerful they ended up being and the amount of damage that they were able to inflict on the Soviets, better them than us.
Lex Fridman
What do you think?
What do you think?
Mark Dubowitz
So, look-
So, look-
Lex Fridman
Is this a useful discussion?
Is this a useful discussion?
Mark Dubowitz
It’s interesting. I mean, I think it’s interesting-
It’s interesting. I mean, I think it’s interesting-
Lex Fridman
Philosophically.
Philosophically.
Mark Dubowitz
… of sort of libertarianism or isolationism in practice. I mean, I think the ’30s are more interesting to me than what happened between ’39 and ’45. I think the debate in America was very interesting in the ’30s where there was really a strong isolationist movement with Charles Lindbergh and Henry Ford and Father Coughlin and many.
… of sort of libertarianism or isolationism in practice. I mean, I think the ’30s are more interesting to me than what happened between ’39 and ’45. I think the debate in America was very interesting in the ’30s where there was really a strong isolationist movement with Charles Lindbergh and Henry Ford and Father Coughlin and many.
Lex Fridman
And Joe Kennedy.
And Joe Kennedy.
Mark Dubowitz
Yeah, and Joe Kennedy. I mean they defined themselves as sort of America-firsters, but it was very much an isolationist strain. And I think we can talk about that history and-
Yeah, and Joe Kennedy. I mean they defined themselves as sort of America-firsters, but it was very much an isolationist strain. And I think we can talk about that history and-
Lex Fridman
Coughlin was a New-Dealer, not a right-winger.
Coughlin was a New-Dealer, not a right-winger.
Mark Dubowitz
Anyway, very much an isolationist talking about America having to stay out of these entangling alliances. This is not our war. Emotionally understandable. Right? Because you can also overlearn the lessons of World War I. and I think they over-learned the lessons of World War I, which was a brutal war and a devastating war mostly for Europe, but obviously for the United States. We lost thousands of American men and women. So the ’30s was this big debate between those who saw the gathering storm of what was happening with Nazi Germany and those who wanted to keep America out.
Anyway, very much an isolationist talking about America having to stay out of these entangling alliances. This is not our war. Emotionally understandable. Right? Because you can also overlearn the lessons of World War I. and I think they over-learned the lessons of World War I, which was a brutal war and a devastating war mostly for Europe, but obviously for the United States. We lost thousands of American men and women. So the ’30s was this big debate between those who saw the gathering storm of what was happening with Nazi Germany and those who wanted to keep America out.
And I think in some respects, it’s like today with a contemporary reality with Khamenei, is that because these isolationist voices were so prominent and so vocal and in some cases quite persuasive to American leaders, Hitler calculated that the United States would not enter the war. And so he could do what Scott says, he could focus on the eastern front, he could gather his forces, and then he could do a kill shot on the Western democracies in Western Europe. And the United States would not intervene. I mean, you’re right. The big mistake he makes is declaring war on the United States after Pearl Harbor. But he believes all through the ’30s and before Pearl Harbor that the isolationist voices are keeping FDR from entering the war even while Churchill and the Brits and the French and others are imploring the Americans, not only just to provide them with material support with weapons so that they could hold onto the island and defend themselves.
And I think Hitler miscalculates. In the same way I think Khamenei miscalculates. Khamenei heard the debate over the past number of years. He believed that the sort of isolationist wing of the Republican Party represented, I think by Tucker Carlson and others who have been very anti-intervention with respect to Iran. I think he believed that that was the dominant voice within Trump’s MAGA coalition, and that as a result, the United States would not use military force. So in the same way that Hitler miscalculated the influence of the isolationists on FDR, Khamenei misjudged the influence of the isolationists on Trump and both ended up miscalculating to their great regret. So to me, that’s the sort of parallel between World War II in the ’30s and the prelude to World War II and what we’re seeing in the current reality over the past few weeks.
Lex Fridman
To make clear, you mentioned there’s a parallel, but mostly there’s no parallel. It’s a fundamentally different…
To make clear, you mentioned there’s a parallel, but mostly there’s no parallel. It’s a fundamentally different…
Mark Dubowitz
Absolutely.
Absolutely.
Lex Fridman
There will never be a war like that.
There will never be a war like that.
Scott Horton
It’s a real problem, too, because they always say everybody’s Hitler, all enemies are Hitler. And to compromise with them at all is to appease Hitler and you can never do that.
It’s a real problem, too, because they always say everybody’s Hitler, all enemies are Hitler. And to compromise with them at all is to appease Hitler and you can never do that.
Mark Dubowitz
Agreed.
Agreed.
Scott Horton
And they do that to Manuel Noriega, to David Koresh, to Saddam Hussein, to whoever they feel like demonizing and saying is-
And they do that to Manuel Noriega, to David Koresh, to Saddam Hussein, to whoever they feel like demonizing and saying is-
Mark Dubowitz
Hitler was unique evil.
Hitler was unique evil.
Scott Horton
… too crazy to negotiate with, when let’s get real, and I think we’re agreed about this probably, that in 2002, W. Bush could have just sent Colin Powell, the four-star general former chairman of the Joint Chiefs of Staff, Secretary of State, to read the Riot Act to Saddam Hussein and tell him, “Look, man, you help keep Al-Qaeda down and we’ll let you live.” And everything would’ve been fine. And in fact, just like Saddam Hussein, there’s a great article by James Risen-
… too crazy to negotiate with, when let’s get real, and I think we’re agreed about this probably, that in 2002, W. Bush could have just sent Colin Powell, the four-star general former chairman of the Joint Chiefs of Staff, Secretary of State, to read the Riot Act to Saddam Hussein and tell him, “Look, man, you help keep Al-Qaeda down and we’ll let you live.” And everything would’ve been fine. And in fact, just like Saddam Hussein, there’s a great article by James Risen-
Mark Dubowitz
For the record, I don’t agree.
For the record, I don’t agree.
Scott Horton
Hang on, hang on now. There’s an article by James-
Hang on, hang on now. There’s an article by James-
Mark Dubowitz
Not surprisingly.
Not surprisingly.
Scott Horton
There’s an article by James Risen in the New York Times, and there’s another one by Seymour Hirsch as well about how Saddam Hussein offered to give in on everything. He said, “You want to search for weapons of mass destruction, you can send your Army and FBI everywhere you want. You want us to switch sides in the Israel-Palestine conflict, we’ll stop backing Hamas. You want us to hold elections, we’ll hold elections. Just give us a couple years. If this is about the oil, we’ll sign over mineral rights.” This is James Risen, New York Times.
There’s an article by James Risen in the New York Times, and there’s another one by Seymour Hirsch as well about how Saddam Hussein offered to give in on everything. He said, “You want to search for weapons of mass destruction, you can send your Army and FBI everywhere you want. You want us to switch sides in the Israel-Palestine conflict, we’ll stop backing Hamas. You want us to hold elections, we’ll hold elections. Just give us a couple years. If this is about the oil, we’ll sign over mineral rights.” This is James Risen, New York Times.
They sent an emissary to meet with Richard Pearl in London, that was who was the chair of the Defense Policy Board and was a major ringleader of getting us into a Iraq War II. And then, I don’t know why, this is a real mistake. If you want to talk about Saddam’s mistakes, why does he always send his guys to meet with Richard Pearl? Because there was a Saudi businessman, pardon me, Lebanese businessman, I think that they tried to get to intervene as well, who again offered virtually total capitulation. And Pearl told him, “Tell Saddam, we’ll see you in Baghdad,” after he was attempting to essentially unconditionally surrender.
The same thing happened with Iran in 2003. Right after America invaded they issue what was called the golden offer, which the Bush administration buried and they castigated the Swiss ambassador who had delivered it, but in the golden offer, and you can find the PDF file of it online they talk about, “We’re happy to negotiate with you our entire nuclear program,” which didn’t even really exist yet, but nuclearization, “We’re willing to negotiate with you about Afghanistan and Iraq,” because again, they hated Saddam Hussein and wanted rid of him too. They’re perfectly happy to work with us on Afghanistan and Iraq. And they had captured a bunch of Bin Ladenites and they were willing to trade them for the MEK. And that included one of Bin Laden’s sons and another guy named Atef, both of whom the Iranians held under house arrest for years. And it was only in the, I think late Obama-
Mark Dubowitz
And they were giving refuge to Al-Qaeda. And the CIA said, “This is a key facilitation pipeline between Iran and Al-Qaeda.” Quote unquote.
And they were giving refuge to Al-Qaeda. And the CIA said, “This is a key facilitation pipeline between Iran and Al-Qaeda.” Quote unquote.
Scott Horton
They were willing to negotiate a trade-
They were willing to negotiate a trade-
Mark Dubowitz
Key facilitation pipeline.
Key facilitation pipeline.
Scott Horton
… between these dangerous Bin Ladenites and the MEK and America refused to negotiate that. And it was years later when the Bin Ladenites abducted some Iranian diplomats in Pakistan that they then traded them away to get their diplomats back. And Atef, I think Bin Laden’s son ended up being killed not long after that, Hamza, and Atef too. But both of those dangerous terrorists were released and were involved in terrorism between then and the time that they were later killed, I think within a couple of years of that. So the hawks always like to say, “Oh yeah, Iran gives such aid and comfort to Al-Qaeda,” and all that. There’s a great document at the Counterterrorism Center at West Point where they debunk all of that.
… between these dangerous Bin Ladenites and the MEK and America refused to negotiate that. And it was years later when the Bin Ladenites abducted some Iranian diplomats in Pakistan that they then traded them away to get their diplomats back. And Atef, I think Bin Laden’s son ended up being killed not long after that, Hamza, and Atef too. But both of those dangerous terrorists were released and were involved in terrorism between then and the time that they were later killed, I think within a couple of years of that. So the hawks always like to say, “Oh yeah, Iran gives such aid and comfort to Al-Qaeda,” and all that. There’s a great document at the Counterterrorism Center at West Point where they debunk all of that.
Mark Dubowitz
Yeah, there’s a 9/11 report by the 9/11 Commission. There’s a 9/11 commission report, people can Google it, which talks about the cooperation between Iran and Al-Qaeda.
Yeah, there’s a 9/11 report by the 9/11 Commission. There’s a 9/11 commission report, people can Google it, which talks about the cooperation between Iran and Al-Qaeda.
Scott Horton
Only in Bosnia when they were doing a favor for Bill Clinton.
Only in Bosnia when they were doing a favor for Bill Clinton.
Mark Dubowitz
Beyond that, and the CIA released thousands of pages of classified material that they declassified showing the relationship between Iran and Al-Qaeda. The US Treasury Department under Obama and under Trump actually designated a number of Iranian individuals for facilitating Al-Qaeda. So anyway, I mean, these are important facts, but I actually want to-
Beyond that, and the CIA released thousands of pages of classified material that they declassified showing the relationship between Iran and Al-Qaeda. The US Treasury Department under Obama and under Trump actually designated a number of Iranian individuals for facilitating Al-Qaeda. So anyway, I mean, these are important facts, but I actually want to-
Scott Horton
You mentioned Baghdadi and Soleimani in the same breath a minute ago, and they’re deadly enemies. And it was Soleimani’s Shiite forces in a Iraq war three that helped destroy [inaudible 03:45:27]-
You mentioned Baghdadi and Soleimani in the same breath a minute ago, and they’re deadly enemies. And it was Soleimani’s Shiite forces in a Iraq war three that helped destroy [inaudible 03:45:27]-
Mark Dubowitz
The enemy of my enemy is my friend.
The enemy of my enemy is my friend.
Scott Horton
… with America flying air power for them.
… with America flying air power for them.
Mark Dubowitz
The greatest error that we’ve made in the Middle East is this notion, not the greatest, but one of the greatest, is this sort of conceptual error that somehow Sunnis and Shiites don’t work together and Iran doesn’t work with Al-Qaeda-
The greatest error that we’ve made in the Middle East is this notion, not the greatest, but one of the greatest, is this sort of conceptual error that somehow Sunnis and Shiites don’t work together and Iran doesn’t work with Al-Qaeda-
Scott Horton
Well, I didn’t say that.
Well, I didn’t say that.
Mark Dubowitz
I’m not saying you say that, but many people think that, and of course they do work, they hate each other, but of course they work together because they hate us more. But can I just say something, Lex, because I actually think just stepping back from all of this detail-
I’m not saying you say that, but many people think that, and of course they do work, they hate each other, but of course they work together because they hate us more. But can I just say something, Lex, because I actually think just stepping back from all of this detail-
Lex Fridman
The more we start to zoom out now, the better.
The more we start to zoom out now, the better.
Mark Dubowitz
Yeah. I’d like to zoom out a little bit. Look, I think the lessons for me over 22 years on working on these issues is one must learn about the mistakes that we’ve made in Iraq and in Afghanistan, in Libya. One must learn about the mistakes that we made in Vietnam, mistakes that we made in World War II-
Yeah. I’d like to zoom out a little bit. Look, I think the lessons for me over 22 years on working on these issues is one must learn about the mistakes that we’ve made in Iraq and in Afghanistan, in Libya. One must learn about the mistakes that we made in Vietnam, mistakes that we made in World War II-
Scott Horton
So we can make them all over again in Iran this time.
So we can make them all over again in Iran this time.
Mark Dubowitz
Can I finish? Or…
Can I finish? Or…
Scott Horton
Go ahead.
Go ahead.
Mark Dubowitz
Are you good?
Are you good?
Scott Horton
Yeah, I’m ready.
Yeah, I’m ready.
Mark Dubowitz
All right. So I think that what President Trump is trying to do is learn but not overlearn. I think he understands the mistakes that have been made. I think he’s trying to rectify those mistakes and he also understands that American power is important. It is a force for good in the world, even though we have made major mistakes. I think there is a great danger amongst certain people to believe that no power should ever be exercised, that all American power is a bad thing and a destructive thing. And sometimes to confuse major tactical decisions that have been made, whether it’s been made by the Brits in World War II or the Americans or us or whoever it is in whatever war, with the fact that there is a strategic reality that we always have to be conscious about and that we have enemies. This is not the Garden of Eden, yet.
All right. So I think that what President Trump is trying to do is learn but not overlearn. I think he understands the mistakes that have been made. I think he’s trying to rectify those mistakes and he also understands that American power is important. It is a force for good in the world, even though we have made major mistakes. I think there is a great danger amongst certain people to believe that no power should ever be exercised, that all American power is a bad thing and a destructive thing. And sometimes to confuse major tactical decisions that have been made, whether it’s been made by the Brits in World War II or the Americans or us or whoever it is in whatever war, with the fact that there is a strategic reality that we always have to be conscious about and that we have enemies. This is not the Garden of Eden, yet.
I hope the libertarians create one. I want to go live there when they do, and Scott and I will be neighbors, believe it or not, living in that Garden of Eden together. But there are major threats in this world, and we need to find the right balance between the overuse of military power and the underuse of military power. If we want to avoid wars, we have to have serious deterrents because our enemies need to understand we will use selective and narrowly focused overwhelming military power when we are facing threats like an Iranian nuclear weapon. That is a serious threat. It’s a serious threat to us. It’s a serious threat to the region. It’s a serious threat with respect to proliferation around the world. And I think with that respect, I think President Trump’s decision to drop bombs on three key nuclear facilities was a selective targeted military action that I hope will drive the Iranians back to the negotiating table where they can negotiate finally the dismantlement of their nuclear weapons program. I think there’s a danger-
Scott Horton
They don’t have a nuclear weapons program.
They don’t have a nuclear weapons program.
Mark Dubowitz
Again, we’ve had a four-hour debate on this, so I’m sure if you want to rewind, you can listen to all our arguments once again. But the fact of the matter is that our unwillingness to use power, if we’re never going to use power, all that’s going to do is send a signal to our enemies that they can do whatever they want. They can violate whatever agreements they want, they can use aggression against anyone they want. And I think that puts American lives in danger.
Again, we’ve had a four-hour debate on this, so I’m sure if you want to rewind, you can listen to all our arguments once again. But the fact of the matter is that our unwillingness to use power, if we’re never going to use power, all that’s going to do is send a signal to our enemies that they can do whatever they want. They can violate whatever agreements they want, they can use aggression against anyone they want. And I think that puts American lives in danger.
And we’ve seen the results of that, where we delayed and delayed and delayed, and we didn’t move and we didn’t move too early and we didn’t preempt, and the threat grew and we ignored gathering storm. And so I think the lessons of a hundred years of American military involvement is if you have an opportunity early on as the storm is gathering to use all instruments of American power, with the military one being the last one you use, then deter when you can and strike when you must in order to prevent the kinds of escalation and wars that everybody at this table, and I’m sure everybody listening in your audience is seeking to avoid.
WW3
Lex Fridman
On that topic, question for both of you, Scott. If human civilization destroys itself in the next 75 years, it probably most likely will be a World War III type of scenario, maybe a nuclear war. How do we avoid that? We’ve been talking about Iran, but there’ll be new conflicts. There’s Ukraine, China…
On that topic, question for both of you, Scott. If human civilization destroys itself in the next 75 years, it probably most likely will be a World War III type of scenario, maybe a nuclear war. How do we avoid that? We’ve been talking about Iran, but there’ll be new conflicts. There’s Ukraine, China…
Scott Horton
Kashmir.
Kashmir.
Lex Fridman
Kashmir.
Kashmir.
Mark Dubowitz
North Korea.
North Korea.
Lex Fridman
Yeah.
Yeah.
Mark Dubowitz
Don’t forget North Korea.
Don’t forget North Korea.
Lex Fridman
Yeah, I mean, there was time when North Korea was the biggest threat to human civilization, according to…
Yeah, I mean, there was time when North Korea was the biggest threat to human civilization, according to…
Scott Horton
We could have had a deal except John Bolton ruined it.
We could have had a deal except John Bolton ruined it.
Lex Fridman
So that’s the bigger question, not so much in the specifics.
So that’s the bigger question, not so much in the specifics.
Scott Horton
Oh, I mean the second time. He ruined the Clinton deal of ’94, then he ruined the Trump deal of 2018.
Oh, I mean the second time. He ruined the Clinton deal of ’94, then he ruined the Trump deal of 2018.
Mark Dubowitz
Or maybe the North Korean dictator ruined it. But again, one doesn’t want to blame our enemies for their mistakes.
Or maybe the North Korean dictator ruined it. But again, one doesn’t want to blame our enemies for their mistakes.
Scott Horton
Well, at the second meeting, Trump sent John Bolton to Outer Mongolia so that he couldn’t sit at the table and ruin the deal. But what happened then? The Democrats had his lawyer testify against him while he was at the meeting and they had this huge propaganda campaign that Kim Jong Un is going to walk all over Trump and take such advantage of him, and they made it virtually impossible for him to walk away claiming a victory.
Well, at the second meeting, Trump sent John Bolton to Outer Mongolia so that he couldn’t sit at the table and ruin the deal. But what happened then? The Democrats had his lawyer testify against him while he was at the meeting and they had this huge propaganda campaign that Kim Jong Un is going to walk all over Trump and take such advantage of him, and they made it virtually impossible for him to walk away claiming a victory.
Mark Dubowitz
Scott, do you ever blame the enemy ever? Do you ever blame the enemy?
Scott, do you ever blame the enemy ever? Do you ever blame the enemy?
Scott Horton
North Korea is not my enemy.
North Korea is not my enemy.
Mark Dubowitz
North Korea is not your enemy?
North Korea is not your enemy?
Scott Horton
No.
No.
Mark Dubowitz
Really? They build nuclear weapons, ICBMs that targeted America.
Really? They build nuclear weapons, ICBMs that targeted America.
Scott Horton
That’s George Bush and John Bolton’s fault. I already said that.
That’s George Bush and John Bolton’s fault. I already said that.
Mark Dubowitz
Well, whatever fault it is, the fact of the matter is do you ever, ever blame an American adversary or is it always our fault?
Well, whatever fault it is, the fact of the matter is do you ever, ever blame an American adversary or is it always our fault?
Scott Horton
In fact, what happened was-
In fact, what happened was-
Mark Dubowitz
Is it always our fault?
Is it always our fault?
Scott Horton
See, all you can do is characterize, but you don’t want to talk about the details. The details are that Stephen Biegun, who worked for Donald Trump gave a speech and said, “you know what? We can put normalization first and denuclearization later.”
See, all you can do is characterize, but you don’t want to talk about the details. The details are that Stephen Biegun, who worked for Donald Trump gave a speech and said, “you know what? We can put normalization first and denuclearization later.”
Mark Dubowitz
I know him very well.
I know him very well.
Scott Horton
And then Donald Trump brought John Bolton to the meeting and he prevented that from being the message of the meeting and ruined the deal.
And then Donald Trump brought John Bolton to the meeting and he prevented that from being the message of the meeting and ruined the deal.
Mark Dubowitz
So it’s always John Bolton’s fault. Always the neocon’s fault.
So it’s always John Bolton’s fault. Always the neocon’s fault.
Scott Horton
Yes. That’s right. It’s all John Bolton’s fault, because how reasonable does this sound to you, Lex-
Yes. That’s right. It’s all John Bolton’s fault, because how reasonable does this sound to you, Lex-
Mark Dubowitz
It’s lobby fault.
It’s lobby fault.
Scott Horton
Give up all your nuclear weapons first, then we’ll talk about every other issue. Does that sound like a poison pill or that sounds like a reasonable negotiation? Give me a break.
Give up all your nuclear weapons first, then we’ll talk about every other issue. Does that sound like a poison pill or that sounds like a reasonable negotiation? Give me a break.
Mark Dubowitz
Sounds like a beginning of a negotiation.
Sounds like a beginning of a negotiation.
Scott Horton
Yeah. Well, they got nowhere because Trump brought John Bolton with him and helped to ruin it.
Yeah. Well, they got nowhere because Trump brought John Bolton with him and helped to ruin it.
Mark Dubowitz
And maybe they went nowhere because the North Korean dictator at the end of the day, is a dictator who wants threaten the United States with ICBMs and nuclear. Listen, you’re criticizing the sequential decisions made in a negotiation.
And maybe they went nowhere because the North Korean dictator at the end of the day, is a dictator who wants threaten the United States with ICBMs and nuclear. Listen, you’re criticizing the sequential decisions made in a negotiation.
Scott Horton
I am.
I am.
Mark Dubowitz
I’m just asking you a serious question out of hours of talking.
I’m just asking you a serious question out of hours of talking.
Scott Horton
Okay.
Okay.
Mark Dubowitz
Which I must say I’ve really enjoyed. I’ve learned a lot.
Which I must say I’ve really enjoyed. I’ve learned a lot.
Lex Fridman
I enjoyed it.
I enjoyed it.
Mark Dubowitz
I think there’s been areas of agreement, obviously real disagreement. But here’s the question to you, really. I mean, do you ever, ever hold our adversaries responsible or do you just don’t think we have any adversaries?
I think there’s been areas of agreement, obviously real disagreement. But here’s the question to you, really. I mean, do you ever, ever hold our adversaries responsible or do you just don’t think we have any adversaries?
Scott Horton
This is ridiculous. The topic has been-
This is ridiculous. The topic has been-
Mark Dubowitz
Tell me.
Tell me.
Scott Horton
… from your point of view, it’s all the adversaries and all American and Israel are trying to do is survive and fix the situation the best they can.
… from your point of view, it’s all the adversaries and all American and Israel are trying to do is survive and fix the situation the best they can.
Mark Dubowitz
I think I’ve acknowledged America’s has made mistakes the whole time.
I think I’ve acknowledged America’s has made mistakes the whole time.
Scott Horton
I’m refuting that by bringing up all the things that America and Israel have done to make matters worse. I didn’t ever say that the Ayatollah’s some great guy or that Kim Jong Un is some hero or any kind of-
I’m refuting that by bringing up all the things that America and Israel have done to make matters worse. I didn’t ever say that the Ayatollah’s some great guy or that Kim Jong Un is some hero or any kind of-
Mark Dubowitz
But do you think they’re threats to America?
But do you think they’re threats to America?
Scott Horton
… thing to spin for their side.
… thing to spin for their side.
Mark Dubowitz
Are there a threat to America?
Are there a threat to America?
Scott Horton
No, of course not. As Zbigniew Brozinsky said in 1993-
No, of course not. As Zbigniew Brozinsky said in 1993-
Mark Dubowitz
They’re not a threat to America? Wow.
They’re not a threat to America? Wow.
Scott Horton
… we could have perfectly normalized relations then. You talk about Iranian support for Al-Qaeda, Iran supported Al-Qaeda in Bosnia-
… we could have perfectly normalized relations then. You talk about Iranian support for Al-Qaeda, Iran supported Al-Qaeda in Bosnia-
Mark Dubowitz
That’s the bottom line.
That’s the bottom line.
Scott Horton
… in 1995 as a favor to Bill Clinton because they were trying to suck up to the United States-
… in 1995 as a favor to Bill Clinton because they were trying to suck up to the United States-
Mark Dubowitz
I understand.
I understand.
Scott Horton
… is why they supported Al-Qaeda in Bosnia.
… is why they supported Al-Qaeda in Bosnia.
Mark Dubowitz
I understand it, your position, your position-
I understand it, your position, your position-
Scott Horton
Yes. My position is whatever you say it is, not what I say.
Yes. My position is whatever you say it is, not what I say.
Mark Dubowitz
No, no. I’m just, I’m trying to summarize.
No, no. I’m just, I’m trying to summarize.
Scott Horton
You know who’s the last person who told me I need to be ware about over-learning the lessons of Iraq? It was Charlie Savage from the New York Times when on the subject was his absolute ridiculous hoax, that Russia was paying the Taliban to murder American soldiers in Afghanistan in 2020, which ruined Trump’s potential, which he was floating trial balloons about withdrawing in the summer of 2020, which would’ve absolutely prevented-
You know who’s the last person who told me I need to be ware about over-learning the lessons of Iraq? It was Charlie Savage from the New York Times when on the subject was his absolute ridiculous hoax, that Russia was paying the Taliban to murder American soldiers in Afghanistan in 2020, which ruined Trump’s potential, which he was floating trial balloons about withdrawing in the summer of 2020, which would’ve absolutely prevented-
Mark Dubowitz
Scott, you said it.
Scott, you said it.
Scott Horton
… the Joe Biden era catastrophe.
… the Joe Biden era catastrophe.
Mark Dubowitz
You said it.
You said it.
Scott Horton
And Charlie Savage who published these ridiculous lies-
And Charlie Savage who published these ridiculous lies-
Mark Dubowitz
Scott.
Scott.
Scott Horton
… that were later refuted by the general in charge of the Afghan war, the head of CENTCOM, the Chairman of the Joint Chiefs of Staff, and the director of Intelligence-
… that were later refuted by the general in charge of the Afghan war, the head of CENTCOM, the Chairman of the Joint Chiefs of Staff, and the director of Intelligence-
Mark Dubowitz
You flood the zone with as much detail as possible.
You flood the zone with as much detail as possible.
Scott Horton
He told me, “You know what your problem is, Horton, is you have over-learned the lessons of Iraq War II.” But it turned out those lessons were perfectly apt for Charlie Savage’s hoax. It wasn’t true what Charlie Savage said, you know what he resorted to? He said, “Well, it’s true that there was a rumor I was reporting on.”
He told me, “You know what your problem is, Horton, is you have over-learned the lessons of Iraq War II.” But it turned out those lessons were perfectly apt for Charlie Savage’s hoax. It wasn’t true what Charlie Savage said, you know what he resorted to? He said, “Well, it’s true that there was a rumor I was reporting on.”
Mark Dubowitz
Scott. You made it very clear, America has no adversaries.
Scott. You made it very clear, America has no adversaries.
Scott Horton
That’s called learning the lessons of Iraq, not over-learning them.
That’s called learning the lessons of Iraq, not over-learning them.
Lex Fridman
All right, so I guess the answer to the question I asked about avoiding World War III is the two of you becoming friends. That’s my goal. If we can try to find the light at the end of the tunnel. One last question. What gives you hope to the degree of hope about the future? What gives you hope about this great country of ours and humanity too?
All right, so I guess the answer to the question I asked about avoiding World War III is the two of you becoming friends. That’s my goal. If we can try to find the light at the end of the tunnel. One last question. What gives you hope to the degree of hope about the future? What gives you hope about this great country of ours and humanity too?
Scott Horton
Yeah, I mean, look, there are a million wonderful things about this country. The land, the people, our culture and our resources and everything, and the kind of society that we could build in, not with a controlled system, but with just a pure free market capitalist system in this country where people are allowed to own their property, improve its value, and exchange it on the market and build this country up. We would be living in, comparatively, a paradise compared to what we have now. And if you look at the opportunity costs just since the end of the Cold War on all that has been wasted on militarism in the Middle East especially, but also in Eastern Europe and in East Asia, all of that wealth put here could have gone much more to something like perfecting our society.
Yeah, I mean, look, there are a million wonderful things about this country. The land, the people, our culture and our resources and everything, and the kind of society that we could build in, not with a controlled system, but with just a pure free market capitalist system in this country where people are allowed to own their property, improve its value, and exchange it on the market and build this country up. We would be living in, comparatively, a paradise compared to what we have now. And if you look at the opportunity costs just since the end of the Cold War on all that has been wasted on militarism in the Middle East especially, but also in Eastern Europe and in East Asia, all of that wealth put here could have gone much more to something like perfecting our society.
It’s always an unfinished project, so that then we really have something to point to the rest of the world and say, “This is how you’re supposed to do it. Not like that.” I think it’s crucial that for all of the problems that Somalia, Syria, Libya, Iraq, Afghanistan have, the worst thing about those countries is America’s wars there. It’s what we have done to them is the worst thing about those places. So we’re not in much of a position to criticize whatever horrible and political practices, cultural and things about their societies that we would like to criticize when the worst chaos that’s happened to them has been inflicted by our country against them virtually all in wars of choice that were unnecessary from the get-go.
Lex Fridman
What gives you hope?
What gives you hope?
Mark Dubowitz
What gives me hope? I think first of all, I have a lot of hope and confidence in the wisdom of the American people. I think Americans understand at the end of the day that they need leaders who are about making America great again. I think they elected Donald Trump who is flawed in many, many ways. But I think Trump is wrestling with some of the questions that we have been wrestling with for the past five hours. I think most Americans know that we have adversaries and it’s just overwhelming numbers of Americans understand that. They may disagree on exactly who is an adversary and how you rank them, but they know we have adversaries. I think the third thing is Americans greatly admire the men and women in uniform. I mean, I think the institution with the greatest popularity in America still remains the US military.
What gives me hope? I think first of all, I have a lot of hope and confidence in the wisdom of the American people. I think Americans understand at the end of the day that they need leaders who are about making America great again. I think they elected Donald Trump who is flawed in many, many ways. But I think Trump is wrestling with some of the questions that we have been wrestling with for the past five hours. I think most Americans know that we have adversaries and it’s just overwhelming numbers of Americans understand that. They may disagree on exactly who is an adversary and how you rank them, but they know we have adversaries. I think the third thing is Americans greatly admire the men and women in uniform. I mean, I think the institution with the greatest popularity in America still remains the US military.
While many of our other institutions are failing the American people and are reflected in the polling, I think we’ve got to be very judicious about how we use this incredibly powerful military because most importantly, it comes down to it’s not about weapons and technology, it’s about the people, it’s about the men and women who have sacrificed their lives to serve our country. At the end of the day, if we understand we have adversaries, we’re careful about how we use our military, we understand the importance of for deterrence in order to actually confront threats before they become so severe that we ended up plunging ourselves in a war. I agree totally with Scott in terms of how we use our money and how judiciously we have to guard it. I agree with how we’ve run out these massive debts and we have to be actually, if we’re serious, and conservatives are really serious, they need to tackle these massive budgets deficits.
And it would be really easy if it was just all about the military and we could just kind of get rid of the Pentagon and all of a sudden we’d be running balanced budgets. It’s not the case. We have much deeper structural economic problems in this country and everybody knows that. And so we got huge challenges as a country, but I really believe, as I believe since I was a little kid, that America is the greatest force for good in the world and that we make mistakes, sometimes tragic mistakes. We make huge miscalculations. And I think we will be much more clear in how to rectify those mistakes if we stop obsessing with these bogeymen that are out there, the Israelis, the Jews, the Influencers-
Scott Horton
The Iranians.
The Iranians.
Mark Dubowitz
Well, and we start focusing on our adversaries, which are not the Iranians, because the 80% of Iranians despise this regime. And Lex, I feel really bad that in five hours we actually haven’t even talked about that in any detail.
Well, and we start focusing on our adversaries, which are not the Iranians, because the 80% of Iranians despise this regime. And Lex, I feel really bad that in five hours we actually haven’t even talked about that in any detail.
Lex Fridman
Many of my friends are Iranian. They’re beautiful people. And it’s one of the great cultures on earth, yeah.
Many of my friends are Iranian. They’re beautiful people. And it’s one of the great cultures on earth, yeah.
Mark Dubowitz
And you know the only place they don’t succeed in the world is inside the Islamic Republic. When they come to America and Canada and Europe, they’re incredibly successful people. And 80% of Iranians despise this regime and they long for a free and prosperous Iran. And so it’s a big question that they’re ever going to get there. And who knows the right way to get them there. But at the end of the day, I am convinced that the vast majority of Iranians are our friends. But there is a regime that has been trying to build nuclear weapons, has been engaged in terrorism for decades, has killed and maimed thousands of Americans and our allies. And it’s a regime that has to be stopped.
And you know the only place they don’t succeed in the world is inside the Islamic Republic. When they come to America and Canada and Europe, they’re incredibly successful people. And 80% of Iranians despise this regime and they long for a free and prosperous Iran. And so it’s a big question that they’re ever going to get there. And who knows the right way to get them there. But at the end of the day, I am convinced that the vast majority of Iranians are our friends. But there is a regime that has been trying to build nuclear weapons, has been engaged in terrorism for decades, has killed and maimed thousands of Americans and our allies. And it’s a regime that has to be stopped.
And I think Donald Trump in the past couple of weeks, I would argue in the past number of months, has try to play a strategy, try to figure out a way to offer the Iranians negotiations and a peaceful solution to this, but used overwhelming military power recently against Iran’s nuclear sites in a very targeted way in order to send a message to the Islamic Republic of Iran that they cannot continue to build nuclear weapons and threaten America.
And so I hope that things will work out well on this. I’ve always said curb your enthusiasm because we have still a lot of pieces that still need to fall into place and this is going to be a windy road as we try to figure this out. I’m hoping for the best, preparing for the worst and want to thank you very much for having me on the show. Scott, it was a real pleasure to meet you. I enjoyed the debate, very lively, I admire your dedication to the issue and your attention of detail, and I think all of that speaks well of you and your commitment and your passion for this. Thank you.
Lex Fridman
I am deeply grateful that you guys will come here. This is really mind-blowing, also that you have, it’s silly maybe to say, but the courage to sit down and talk through this, through the tension. I’ve learned a lot. I think a lot of people are going to learn a lot. I’m a fan of both of your work and it means a lot that you’ll come here today and talk to a silly kid like me. So Scott, thank you so much, brother.
I am deeply grateful that you guys will come here. This is really mind-blowing, also that you have, it’s silly maybe to say, but the courage to sit down and talk through this, through the tension. I’ve learned a lot. I think a lot of people are going to learn a lot. I’m a fan of both of your work and it means a lot that you’ll come here today and talk to a silly kid like me. So Scott, thank you so much, brother.
Scott Horton
Thank you.
Thank you.
Lex Fridman
Thank you, Mark.
Thank you, Mark.
Mark Dubowitz
Thanks Lex, appreciate it.
Thanks Lex, appreciate it.
Lex Fridman
Bam.
Bam.
Mark Dubowitz
Thanks Scott.
Thanks Scott.
Lex Fridman
Thanks for listening to this debate between Scott Horton and Mark Dubowitz. To support this podcast, please check out our sponsors in the description and consider subscribing to this channel. And now let me leave you with some sobering words on the cost of war from Dwight D. Eisenhower. For some context, Eisenhower was the 34th President of the United States. But before that, during World War II, he was the supreme commander of the Allied Expeditionary Force, orchestrating some of the most significant military operations at the war with leadership marked by strategic and tactical brilliance. It is in this context that the following words carry even more power and wisdom, spoken in 1953.
Thanks for listening to this debate between Scott Horton and Mark Dubowitz. To support this podcast, please check out our sponsors in the description and consider subscribing to this channel. And now let me leave you with some sobering words on the cost of war from Dwight D. Eisenhower. For some context, Eisenhower was the 34th President of the United States. But before that, during World War II, he was the supreme commander of the Allied Expeditionary Force, orchestrating some of the most significant military operations at the war with leadership marked by strategic and tactical brilliance. It is in this context that the following words carry even more power and wisdom, spoken in 1953.
“Every gun that is made, every warship launched, every rocket fired, signifies in the final sense, a theft from those who hunger and are not fed. Those who are cold and are not clothed. This world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientist, the hopes of its children. The cost of one modern heavy bomber is this, a modern brick school in more than 30 cities. It’s two electric power plants, each serving a town of 60,000 population. It is two fully equipped hospitals. It is some 50 miles of concrete highway. We pay for a single fighter plane with a half million bushels of wheat. We pay for a single destroyer with new homes that could have housed more than 8,000 people. This is not a way of life at all, in any true sense. Under the cloud of threatening war, that is humanity hanging from a cost of iron.”
And now allow me to have some additional brief excerpts. In 1946, Eisenhower said, “I hate war as only a soldier who has lived it can, only as one who has seen its brutality, its futility, its stupidity.” In 1950, Eisenhower said, “Possibly my hatred of war blinds me so that I cannot comprehend the arguments they adduce. But in my opinion, there’s no such thing as a preventative war. Although the suggestion is repeatedly made, none has yet explained how war prevents war. Worse than this, no one has been able to explain away the fact that war creates the conditions that beget war.” And finally, an excerpt from Eisenhower’s farewell address in 1961 on the military-industrial complex.
“A vital element in keeping the peace is our military establishment. Our arms must be mighty, ready for instant action so that no potential aggressor may be tempted to risk his own destruction. American makers of plowshares could, with time and as required, make swords as well. But now we can no longer risk emergency improvisation of national defense. We have been compelled to create a permanent armaments industry of vast proportions. This conjunction of an immense military establishment and a large arms industry is new in the American experience. Yet we must not fail to comprehend its grave implications. In the councils of government, we must guard against an acquisition of unwarranted influence, whether sought or unsought by the military-industrial complex. The potential for the disastrous rise of misplaced power exists and will persist.”
Thank you listening and hope to see you next time.
Transcript for Terence Tao: Hardest Problems in Mathematics, Physics & the Future of AI | Lex Fridman Podcast #472
This is a transcript of Lex Fridman Podcast #472 with Terence Tao.
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So, as delta gets smaller, as the needle gets thinner, the volume should go down. But how fast does it go down? And the conjecture was that it goes down very, very slowly like logarithmically roughly speaking, and that was proved after a lot of work. So, this seems like a puzzle. Why is it interesting? So, it turns out to be surprisingly connected to a lot of problems in partial differential equations, in number theory, in geometry, combinatorics. For example, in wave propagation, you splash some water around, you create water waves and they travel in various directions, but waves exhibit both particle and wave-type behavior. So, you can have what’s called a wave packet, which is a very localized wave that is localized in space and moving a certain direction in time. And so if you plot it in both space and time, it occupies a region which looks like a tube. What can happen is that you can have a wave which initially is very dispersed, but it all focuses at a single point later in time. You can imagine dropping a pebble into a pond and the ripples spread out, but then if you time-reverse that scenario, and the equations of wave motion are time-reversible, you can imagine ripples that are converging to a single point and then a big splash occurs, maybe even a singularity. And so it’s possible to do that. And geometrically what’s going on is that there’s also light rays, so if this wave represents light, for example, you can imagine this wave as a superposition of photons all traveling at the speed of light.
They all travel on these light rays and they’re all focusing at this one point. So, you can have a very dispersed wave focus into a very concentrated wave at one point in space and time, but then it de-focuses again, it separates. But potentially if the conjecture had a negative solution, so what that meant is that there’s a very efficient way to pack tubes pointing different directions to a very, very narrow region of a very narrow volume. Then you would also be able to create waves that start out some… There’ll be some arrangement of waves that start out very, very dispersed, but they would concentrate, not just at a single point, but there’ll be a lot of concentrations in space and time. And you could create what’s called a blowup, where these waves amplitude becomes so great that the laws of physics that they’re governed by are no longer wave equations, but something more complicated and nonlinear.
And so in mathematical physics, we care a lot about whether certain equations and wave equations are stable or not, whether they can create these singularities. There’s a famous unsolved problem called the Navier-Stokes regularity problem. So, the Navier-Stokes equations, equations that govern the fluid flow for incompressible fluids like water. The question asks: if you start with a smooth velocity field of water, can it ever concentrate so much that the velocity becomes infinite at some point? That’s called a singularity. We don’t see that in real life. If you splash around water in the bathtub, it won’t explode on you or have water leaving at the speed of light or anything, but potentially it is possible.
And in fact, in recent years, the consensus has drifted towards the belief that, in fact, for certain very special initial configurations of, say, water, that singularities can form, but people have not yet been able to actually establish this. The Clay Foundation has these seven Millennium Prize Problems as a $1 million prize for solving one of these problems, and this is one of them. Of these of these seven, only one of them has been solved, at the Poincare Conjecture [inaudible 00:07:18]. So, the Kakeya Conjecture is not directly directly related to the Navier-Stokes Problem, but understanding it would help us understand some aspects of things like wave concentration, which would indirectly probably help us understand the Navier-Stokes Problem better.
And this is a situation that shows up a lot in mathematics. A basic example is the digits of pi 3.14159 and so forth. The digits look like they have no pattern, and we believe they have no pattern. On the long-term, you should see as many ones and twos and threes as fours and fives and sixes, there should be no preference in the digits of pi to favor, let’s say seven over eight. But maybe there’s some demon in the digits of pi that every time you compute more and more digits, it biases one digit to another. And this is a conspiracy that should not happen. There’s no reason it should happen, but there’s no way to prove it with our current technology. So, getting back to Navier-Stokes, a fluid has a certain amount of energy, and because the fluid is in motion, the energy gets transported around.
And water is also viscous, so if the energy is spread out over many different locations, the natural viscosity of the fluid will just damp out the energy and will go to zero. And this is what happens when we actually experiment with water. You splash around, there’s some turbulence and waves and so forth, but eventually it settles down and the lower the amplitude, the smaller velocity, the more calm it gets. But potentially there is some sort of demon that keeps pushing the energy of the fluid into a smaller and smaller scale, and it’ll move faster and faster. And at faster speeds, the effect of viscosity is relatively less. And so it could happen that it creates some sort of what’s called a self-similar blob scenario where the energy of the fluid starts off at some large scale and then it all sort of transfers energy into a smaller region of the fluid, which then at a much faster rate moves into an even smaller region and so forth.
And each time it does this, it takes maybe half as long as the previous one, and then you could actually converge to all the energy concentrating in one point in a finite amount of time. And that’s scenario is called finite time blowup. So, in practice, this doesn’t happen. So, water is what’s called turbulent. So, it is true that if you have a big eddy of water, it will tend to break up into smaller eddies, but it won’t transfer all energy from one big eddy into one smaller eddy. It will transfer into maybe three or four, and then those ones split up into maybe three or four small eddies of their own. So the energy gets dispersed to the point where the viscosity can then keep everything under control. But if it can somehow concentrate all the energy, keep it all together, and do it fast enough that the viscous effects don’t have enough time to calm everything down, then this blowup can occur.
So, there were papers who had claimed that, “Oh, you just need to take into account conservation of energy and just carefully use the viscosity and you can keep everything under control for not just the Navier-Stokes, but for many, many types of equations like this.” And so in the past there have been many attempts to try to obtain what’s called global regularity for Navier-Stokes, which is the opposite of finite time blowup, that velocity stays smooth. And it all failed. There was always some sign error or some subtle mistake and it couldn’t be salvaged.
So, what I was interested in doing was trying to explain why we were not able to disprove finite time blowup. I couldn’t do it for the actual equations of fluids, which are too complicated, but if I could average the equations of motion of Navier-Stokes, basically if I could turn off certain types of ways in which water interacts and only keep the ones that I want. So, in particular, if there’s a fluid and it could transfer as energy from a large eddy into this small eddy or this other small eddy, I would turn off the energy channel that would transfer energy to this one and direct it only into this smaller eddy while still preserving the lower conservation energy.
So, the thing about math, it’s not just about taking a technique that is going to work and applying it, but you need to not take the techniques that don’t work. And for the problems that are really hard, often though are dozens of ways that you might think might apply to solve the problem, but it’s only after a lot of experience that you realize there’s no way that these methods are going to work. So, having these counterexamples for nearby problems rules out… it saves you a lot of time because you’re not wasting energy on things that you now know cannot possibly ever work.
So, sometimes these forces are in balance at small scales but not in balance at large scales or vice versa. Navier-Stokes is what’s called supercritical. So at smaller and smaller scales, the transport terms are much stronger than the viscosity terms. So, the viscosity terms are things that calm things down. And so this is why the problem is hard. In two dimensions, so the Soviet mathematician Ladyzhenskaya, she in the ’60s shows in two dimensions there was no blowup. And in two dimensions, the Navier-Stokes Equation is what’s called critical, the effect of transport and the effect of viscosity about the same strength even at very, very small scales. And we have a lot of technology to handle critical and also subcritical equations and prove regularity. But for supercritical equations, it was not clear what was going on, and I did a lot of work, and then there’s been a lot of follow up showing that for many other types of supercritical equations, you can create all kinds of blowup examples.
Once the nonlinear effects dominate the linear effects at small scales, you can have all kinds of bad things happen. So, this is sort of one of the main insights of this line of work is that super-criticality versus criticality and subcriticality, this makes a big difference. That’s a key qualitative feature that distinguishes some equations for being sort of nice and predictable and… Like planetary motion, there’s certain equations that you can predict for millions of years or thousands at least. Again, it’s not really a problem, but there’s a reason why we can’t predict the weather past two weeks into the future because it’s a supercritical equation. Lots of really strange things are going on at very fine scales.
You’re trying to do everything at once, and this spreads out the energy too much. And then it turns out that it makes it vulnerable for viscosity to come in and actually just damp out everything. So, it turns out this direct abortion doesn’t actually work. There was a separate paper by some other authors that actually showed this in three dimensions. So, what I needed was to program a delay, so kind of like airlocks. So, I needed an equation which would start with a fluid doing something at one scale, it would push this energy into the next scale, but it would stay there until all the energy from the larger scale got transferred. And only after you pushed all the energy in, then you open the next gate and then you push that in as well.
So, by doing that, the energy inches forward, scale by scale in such a way that it’s always localized at one scale at a time, and then it can resist the effects of viscosity because it’s not dispersed. So, in order to make that happen, I had to construct a rather complicated nonlinearity. And it was basically… It was constructed like an electronic circuit. So, I actually thank my wife for this because she was trained as an electrical engineer, and she talked about she had to design circuits and so forth. And if you want a circuit that does a certain thing, maybe have a light that flashes on and then turns off and then on and off. You can build it from more primitive components, capacitors and resistors and so forth, and you have to build a diagram.
And these diagrams, you can sort of follow up your eyeballs and say, “Oh yeah, the current will build up here and it will stop, and then it will do that.” So, I knew how to build analog of basic electronic components, like resistors and capacitors and so forth. And I would stack them together in such a way that I would create something that would open one gate. And then there’d be a clock, and then once the clock hits a certain threshold, it would close it. It would become a Rube Goldberg type machine, but described mathematically. And this ended up working. So, what I realized is that if you could pull the same thing off for the actual equations, so if the equations of water support a computation… So, you can imagine a steampunk, but it’s really water-punk type of thing where… So, modern computers are electronic, they’re powered by electrons passing through very tiny wires and interacting with other electrons and so forth.
But instead of electrons, you can imagine these pulses of water moving a certain velocity. And maybe there are two different configurations corresponding to a bit being up or down. Probably that if you had two of these moving bodies of water collide, they would come out with some new configuration, which would be something like an AND gate or OR gate, that the output would depend in a very predictable way on the inputs. And you could chain these together and maybe create a Turing machine. And then you have computers which are made completely out of water. And if you have computers, then maybe you can do robotics, so hydraulics and so forth. And so you could create some machine which is basically a fluid analog, what’s called a von Neumann machine.
So, von Neumann proposed if you want to colonize Mars, the sheer cost of transporting people in machines to Mars is just ridiculous, but if you could transport one machine to Mars, and this machine had the ability to mine the planet, create some more materials, smelt them and build more copies of the same machine, then you could colonize a whole planet over time. So, if you could build a fluid machine, which yeah, so it’s a fluid robot. And what it would do, its purpose in life, it’s programmed so that it would create a smaller version of itself in some sort of cold state. It wouldn’t start just yet. Once it’s ready, the big robot configuration of water would transfer all its energy into the smaller configuration and then power down. And then they clean itself up, and then what’s left is this newest state which would then turn on and do the same thing, but smaller and faster.
And then the equation has a certain scaling symmetry. Once you do that, it can just keep iterating. So, this, in principle, would create a blowup for the actual Navier-Stokes. And this is what I managed to accomplish for this average Navier-Stokes. So, it provided this sort of roadmap to solve the problem. Now, this is a pipe dream because there are so many things that are missing for this to actually be a reality. So, I can’t create these basic logic gates. I don’t have these special configurations of water. There’s candidates, these include vortex rings that might possibly work. But also analog computing is really nasty compared to digital computing because there’s always errors. You have to do a lot of error correction along the way.
I don’t know how to completely power down the big machine, so it doesn’t interfere the writing of the smaller machine, but everything in principle can happen. It doesn’t contradict any of the laws of physics, so it’s sort of evidence that this thing is possible. There are other groups who are now pursuing ways to make Navier-Stokes blow up, which are nowhere near as ridiculously complicated as this. They actually are pursuing much closer to the direct self-similar model, which can… It doesn’t quite work as is, but there could be some simpler scheme they want to just describe to make this work.
So, a glider is a very tiny configuration of four or five selves which evolves and it just moves at a certain direction. And that’s like this vortex rings [inaudible 00:27:09]. Yeah, so this is an analogy, the Game of Life is a discrete equation, and the fluid Navier-Stokes is a continuous equation, but mathematically they have some similar features. And so over time people discovered more and more interesting things that you could build within the Game of Life. The Game of Life is a very simple system. It only has like three or four rules to do it, but you can design all kinds of interesting configurations inside it. There’s some called a glider gun that does nothing that spit out gliders one at a time. And then after a lot of effort, people managed to create AND gates and OR gates for gliders.
There’s this massive ridiculous structure, which if you have a stream of gliders coming in here and a stream of gliders coming in here, then you may produce extreme gliders coming out. Maybe if both of the streams have gliders, then there’ll be an output stream, but if only one of them does, then nothing comes out. So, they could build something like that. And once you could build these basic gates, then just from software engineering, you can build almost anything. You can build a Turing machine. It’s enormous steampunk type things. They look ridiculous. But then people also generated self-replicating objects in the Game of Life, a massive machine, a [inaudible 00:28:31] machine, which over a huge period of time and always look like glider guns inside doing these very steampunk calculations. It would create another version of itself which could replicate.
If I give you a specific pattern like the digits of pi, how can I show that this doesn’t have some weird pattern to it? Some other work that I spent a lot of time on is to prove what are called structure theorems or inverse theorems that give tests for when something is very structured. So, some functions are what’s called additive. If you have a function of natural numbers of the natural numbers, so maybe two maps to four, three maps to six and so forth, some functions are what’s called additive, which means that if you add two inputs together, the output gets added as well. For example, a multiply by constant. If you multiply a number by 10… If you multiply A plus B by 10, that’s the same as multiplying A by 10 and B by 10, and then adding them together. So, some functions are additive, some functions are kind of additive but not completely additive.
So, for example, if I take a number, and I multiply by the square of two and I take the integer part of that, so 10 by square route of two is like 14 point something, so 10 up to 14, 20 or up to 28. So, in that case, additivity is true then, so 10 plus 10 is 20 and 14 plus 14 is 28. But because of this rounding, sometimes there’s round-up errors, and sometimes when you add A plus A, this function doesn’t quite give you the sum of the two individual outputs, but the sum plus/minus one. So, it’s almost additive, but not quite additive.
So, there’s a lot of useful results in mathematics, and I’ve worked a lot on developing things like this, to the effect that if a function exhibits some structure like this, then it’s basically there’s a reason for why it’s true. And the reason is because there’s some other nearby function, which is actually completely structured, which is explaining this sort of partial pattern that you have. And so if you have these inverse theorems, it creates this dichotomy that either the objects that you study are either have no structure at all or they are somehow related to something kind of structured. And in either way, in either case, you can make progress. A good example of this is that there’s this old theorem in mathematics-
For example, the odd numbers have a density of one half, and they contain arithmetic progressions of any length. So in that case, it’s obvious, because the odd numbers are really, really structured. I can just take 11, 13, 15, 17, I can easily find arithmetic progressions in that set, but Szemerédi’s theorem also applies to random sets. If I take a set of odd numbers and I flip a coin for each number, and I only keep the numbers for which I got a heads… So I just flip coins, I just randomly take out half the numbers, I keep one half. That’s a set that has no patterns at all, but just from random fluctuations, you will still get a lot of arithmetic progressions in that set.
So basically, the theorem is that if you take an infinite string of digits or whatever, eventually any finite pattern you wish will emerge. It may take a long time, but it will eventually happen. In particular, arithmetic progressions of any length will eventually happen, but you need an extremely long random sequence for this to happen.
So for example, A plus B is always B plus A. So when you have a finite number of terms and you add them, you can swap them and there’s no problem, but when you have an infinite number of terms, they’re these sort of show games you can play where you can have a series which converges to one value, but you rearrange it, and it suddenly converges to another value, and so you can make mistakes. You have to know what you’re doing when you allow infinity. You have to introduce these epsilons and deltas, and there’s a certain type of wave of reasoning that helps you avoid mistakes.
In more recent years, people have started taking results that are true in infinite limits and what’s called finitizing them. So you know that something’s true eventually, but you don’t know when. Now give me a rate. So such… If I don’t have an infinite number of monkeys, but a large finite number of monkeys, how long do I have to wait for Hamlet to come out? That’s a more quantitative question, and this is something that you can attack by purely finite methods, and you can use your finite intuition, and in this case, it turns out to be exponential in the length of the text that you’re trying to generate.
So this is why you never see the monkeys create Hamlet. You can maybe see them create a four letter word, but nothing that big, and so I personally find once you finitize an infinite statement, it does come much more intuitive, and it’s no longer so weird.
We can’t directly access reality. All we have are the observations, which are incomplete and they have errors, and there are many, many cases where we want to know, for example, what is the weather like tomorrow, and we don’t yet have the observation, but we’d like to. A prediction.
Then we have these simplified models, sometimes making unrealistic assumptions, spherical cow type things. Those are the mathematical models.
Mathematics is concerned with the models. Science collects the observations, and it proposes the models that might explain these observations. What mathematics does, we stay within the model, and we ask what are the consequences of that model? What observations, what predictions would the model make of future observations, or past observations? Does it fit? Observe data?
So there’s definitely a symbiosis. I guess mathematics is unusual among other disciplines is that we start from hypotheses, like the axioms of a model, and ask what conclusions come up from that model. In almost any other discipline, you start with the conclusions. “I want to do this. I want to build a bridge, I want to make money, I want to do this,” and then you find the paths to get there. There’s a lot less sort of speculation about, “Suppose I did this, what would happen?”. Planning and modeling. Speculative fiction maybe is one other place, but that’s about it, actually. Most of the things we do in life is conclusions driven, including physics and science. I mean, they want to know, “Where is this asteroid going to go? What is the weather going to be tomorrow?”, but mathematics also has this other direction of going from the axioms.
So if your model is predicting anomalies that are not predicted by experiment, that tells experimenters where to look to find more data to refine the models. So it goes back and forth.
Within mathematics itself, there’s also a theory and experimental component. It’s just that until very recently, theory has dominated almost completely. 99% of mathematics is theoretical mathematics, and there’s a very tiny amount of experimental mathematics. People do do it. If they want to study prime numbers or whatever, they can just generate large data sets.
So once we had the computers, we had to do it a little bit. Although even before… Well, like Gauss for example, he discovered a reconjection, the most basic theorem in number theory, called the prime number theorem, which predicts how many primes up to a million, up to a trillion. It’s not an obvious question, and basically what he did was that he computed, mostly by himself, but also hired human computers, people whose professional job it was to do arithmetic, to compute the first hundred thousand primes or something, and made tables and made a prediction. That was an early example of experimental mathematics, but until very recently, it was not…
I mean, theoretical mathematics was just much more successful. Of course, doing complicated mathematical computations was just not feasible until very recently, and even nowadays, even though we have powerful computers, only some mathematical things can be explored numerically.
There’s something called the combinatorial explosion. If you want us to study, for example, Szemerédi’s theorem, you want to study all possible subsets of numbers one to a thousand. There’s only 1000 numbers. How bad could it be? It turns out the number of different subsets of one to a thousand is two to the power of 1000, which is way bigger than any computer can currently enumerate.
So there are certain math problems that very quickly become just intractable to attack by direct brute force computation. Chess is another famous example. The number of chess positions, we can’t get a computer to fully explore, but now we have AI, we have tools to explore this space, not with 100% guarantees of success, but with experiment. So we can empirically solve chess now. For example, we have very, very good AIs that don’t explore every single position in the game tree, but they have found some very good approximation, and people are using actually these chess engines to do experimental chess. They’re revisiting old chess theories about, “Oh, when you do this type of opening… This is a good type of move, this is not,” and they can use these chess engines to actually refine, and in some cases, overturn conventional wisdom about chess, and I do hope that that mathematics will have a larger experimental component in the future, perhaps powered by AI.
You’ve mentioned the Plato’s cave allegory. In case people don’t know, it’s where people are observing shadows of reality, not reality itself, and they believe what they’re observing to be reality. Is that, in some sense, what mathematicians and maybe all humans are doing, is looking at shadows of reality? Is it possible for us to truly access reality?
So you start off with a model, which is actually really far from reality, but it fits the observations that you have. So things look good, but over time, as you make more and more observations, bring it closer to reality, the model gets dragged along with it, and so over time, we had to realize that the earth was round, that it spins, it goes around the solar system, solar system goes around the galaxy, and so on and so forth, and the universe was expanding. Expansions is self-expanding, accelerating, and in fact, very recently this year… So even the acceleration of the universe itself, this evidence now is non-constant.
So if you have a model with 10 parameters that explains 10 observations, that is a completely useless model, its what’s called overfitted, but if you have a model with two parameters and it explains a trillion observations, which is basically the dark matter model, I think it has 14 parameters, and it explains petabytes of data that the astronomers have.
You can think of a theory. One way to think about a physical mathematical theory is it’s a compression of the universe, and a data compression. So you have these petabytes of observations, you like to compress it to a model which you can describe in five pages and specify a certain number of parameters, and if it can fit, to reasonable accuracy, almost all of your observations, the more compression that you make, the better your theory.
Like Avogadro’s number is humongous. There’s a huge number of particles. If you actually tried to track each one, it’ll be ridiculous, but certain laws emerge at the microscopic scale that almost don’t depend on what’s going on at the macro scale, or only depend on a very small number of parameters.
So if you want to model a gas of a quintillion particles in a box, you just need to know is temperature and pressure and volume, and a few parameters, like five or six, and it models almost everything you need to know about these 10 to 23 or whatever particles. So we don’t understand universality anywhere near as we would like mathematically, but there are much simpler toy models where we do have a good understanding of why universality occurs. The most basic one is the central limit theorem that explains why the bell curve shows up everywhere in nature, that so many things are distributed by what’s called a Gaussian distribution, famous bell curve. There’s now even a meme with this curve.
Sometimes they don’t. So if you have many different inputs and they’re all correlated in some systemic way, then you can get something very far from a bell curve to show up, and this is also important to know when [inaudible 00:49:55] fails. So universality is not a 100% reliable thing to rely on. The global financial crisis was a famous example of this. People thought that mortgage defaults had this sort of Gaussian type behavior, that if a population of a hundred thousand Americans with mortgages ask what proportion of them would default on their mortgages, if everything was de-correlated, it would be an asset bell curve, and you can manage risk of options and derivatives and so forth, and there’s a very beautiful theory, but if there are systemic shocks in the economy that can push everybody to default at the same time, that’s very non-Gaussian behavior, and this wasn’t fully accounted for in 2008.
Now I think there’s some more awareness that this systemic risk is actually a much bigger issue, and just because the model is pretty and nice, it may not match reality. So the mathematics of working out what models do is really important, but also the science of validating when the models fit reality and when they don’t… You need both, but mathematics can help, because for example, these central limit theorems, it tells you that if you have certain axioms like non-correlation, that if all the inputs were not correlated to each other, then you have this Gaussian behavior and things are fine. It tells you where to look for weaknesses in the model.
So if you have a mathematical understanding of Szemerédi’s theorem, and someone proposes to use these Gaussian [inaudible 00:51:32] or whatever to model default risk, if you’re mathematically trained, you would say, “Okay, but what are the systemic correlation between all your inputs?”, and so then you can ask the economist, “How much of a risk is that?”, and then you can go look for that. So there’s always this synergy between science and mathematics.
An ancient example is geometry and number theory. So in the times of the ancient Greeks, these were considered different subjects. I mean, mathematicians worked on both. Euclid worked both on geometry, most famously, but also on numbers, but they were not really considered related. I mean, a little bit, like you could say that this length was five times this length because you could take five copies of this length and so forth, but it wasn’t until Descartes, who developed analytical geometry, that you can parameterize the plane, a geometric object, by two real numbers. So geometric problems can be turned into problems about numbers.
Today this feels almost trivial. There’s no content to this. Of course, a plane is X and Y, because that’s what we teach and it’s internalized, but it was an important development that these two fields were unified, and this process has just gone on throughout mathematics over and over again. Algebra and geometry were separated, and now we have this fluid, algebraic geometry that connects them, and over and over again, and that’s certainly the type of mathematics that I enjoy the most.
I think there’s sort of different styles to being a mathematician. I think hedgehogs and fox… A fox knows many things a little bit, but a hedgehog knows one thing very, very well, and in mathematics, there’s definitely both hedgehogs and foxes, and then there’s people who can play both roles, and I think ideal collaboration, British mathematicians involves very… You need some diversity, like a fox working with many hedgehogs or vice versa, but I identify mostly as a fox, certainly. I like arbitrage, somehow. Learning how one field works, learning the tricks of that wheel, and then going to another field which people don’t think is related, but I can adapt the tricks.
Often, my proof is worse, but by the exercise they’re doing, so I can say, “Oh, now I can see what the other proof was trying to do,” and from that, I can get some understanding of the tools that are used in that field. So it’s very exploratory, very… Doing crazy things in crazy fields and reinventing the wheel a lot, whereas the hedgehog style is, I think, much more scholarly. You’re very knowledge-based. You stay up to speed on all the developments in this field, you know all the history, you have a very good understanding of exactly the strengths and weaknesses of each particular technique. I think you rely a lot more on calculation than sort of trying to find narratives. So yeah, I can do that too, but other people are extremely good at that.
So Conway just had this amazing way of thinking about all kinds of things in a way that you wouldn’t normally think of. So he thought proofs themselves as occupying some sort of space. So if you want to prove something, let’s say that there’s infinitely many primes, you have all different proofs, but you could rank them in different axes. Some proofs are elegant, some proofs are long, some proofs are elementary and so forth, and so there’s this cloud, so the space of all proofs itself has some sort of shape, and so he was interested in extreme points of this shape. Out of all these proofs, what is one of those, the shortest, at the expense of everything else, or the most elementary or whatever?
So he gave some examples of well-known theorems, and then he would give what he thought was the extreme proof in these different aspects. I just found that really eye-opening, that it’s not just getting a proof for a result that was interesting, but once you have that proof, trying to optimize it in various ways, that proofing itself had some craftsmanship to it.
It’s certainly informed my writing style, like when you do your math assignments and as you’re an undergraduate, your homework and so forth, you’re sort of encouraged to just write down any proof that works and hand it in, and as long as it gets a tick mark, you move on, but if you want your results to actually be influential and be read by people, it can’t just be correct. It should also be a pleasure to read, motivated, be adaptable to generalize to other things. It’s the same in many other disciplines, like coding. There’s a lot of analogies between math and coding. I like analogies, if you haven’t noticed. You can code something, spaghetti code, that works for a certain task, and it’s quick and dirty and it works, but there’s lots of good principles for writing code well so that other people can use it, build upon it so it has fewer bugs and whatever, and there’s similar things with mathematics.
Like you mentioned, coding as an analogy is interesting, because there’s also this activity called the code golf, which I also find beautiful and fun, where people use different programming languages to try to write the shortest possible program that accomplishes a particular task, and I believe there’s even competitions on this, and it’s also a nice way to stress test not just the programs, or in this case, the proofs, but also the different languages. Maybe that’s a different notation or whatever to use to accomplish a different task.
So the exponential function, which is by Euler, was to measure exponential growth. So compound interest or decay, anything which is continuously growing, continuously decreasing, growth and decay, or dilation or contraction, is modeled by the exponential function, whereas pi comes around from circles and rotation, right? If you want to rotate a needle, for example, a hundred degrees, you need rotate by pi radians, and i, complex numbers, represents the swapping imaginary axes of a 90 degree rotation. So a change in direction.
So the exponential function represents growth and decay in the direction that you already are. When you stick an i in the exponential, now instead of motion in the same direction as your current position, the motion as a right angles to your current position. So rotation, and then, so E to the pi i equals minus one tells you that if you rotate for a time pi, you end up at the other direction. So it unifies geometry through dilation and exponential growth or dynamics through this act of complexification, rotation by pi i. So it connects together all these two as mathematics, dynamics, geometry and complex numbers. They’re all considered almost… They were all next-door neighbors in mathematics because of this identity.
It was only later after people started analyzing these equations that there always seemed to be these quantities that were conserved. So in particular, momentum and energy, and it’s not obvious that things have an energy. It’s not something you can directly measure the same way you can measure mass and velocity, so both, but over time, people realized that this was actually a really fundamental concept.
Hamilton, eventually in the 19th century, reformulated Newton’s laws of physics into what’s called Hamiltonian mechanics, where the energy, which is now called the Hamiltonian, was the dominant object. Once you know how to measure the Hamiltonian of any system, you can describe completely the dynamics like what happens to all the states. It really was a central actor, which was not obvious initially, and this change of perspective really helped when quantum mechanics came along, because the early physicists who studied quantum mechanics, they had a lot of trouble trying to adapt their Newtonian thinking, because everything was a particle and so forth, to quantum mechanics, because everything was a wave, but it just looked really, really weird.
You ask, “What is the quantum version of F=ma?”, and it’s really, really hard to give an answer to that, but it turns out that the Hamiltonian, which was so secretly behind the scenes in classical mechanics, also is the key object in quantum mechanics, that there’s also an object called a Hamiltonian. It’s a different type of object. It’s what’s called an operator rather than a function, but again, once you specify it, you specify the entire dynamics.
So there’s something called Schrodinger’s equation that tells you exactly how quantum systems evolve once you have a Hamiltonian. So side by side, they look completely different objects. One involves particles, one involves waves and so forth, but with this centrality, you could start actually transferring a lot of intuition and facts from classical mechanics to quantum mechanics. So for example, in classical mechanics, there’s this thing called Noether’s theorem. Every time there’s a symmetry in a physical system, there was a conservation law. So the laws of physics are translation invariant. Like if I move 10 steps to the left, I experience the same laws of physics as if I was here, and that corresponds to conservation momentum. If I turn around by some angle, again, I experience the same laws of physics. This corresponds to the conservation of angular momentum. If I wait for 10 minutes, I still have the same laws of physics.
One of the problems why we can’t unify quantum mechanics and general relativity, yet we haven’t figured out what the fundamental objects are. For example, we have to give up the notion of space and time being these almost Euclidean-type spaces, and it has to be, we know that at very tiny scales there’s going to be quantum fluctuations. There’s space-time foam and trying to use Cartesian coordinates X, Y, Z. It’s a non-starter, but we don’t know what to replace it with. We don’t actually have the concepts, the analog Hamiltonian that sort of organized everything.
And I was interested in the global regularity problem. Again for this question, is it possible for the energy here to collect at a point? So the equation I considered was actually what’s called a critical equation where it’s actually the behavior at all scales is roughly the same. And I was able barely to show that you couldn’t actually force a scenario where all the energy concentrated at one point, that the energy had to disperse a little bit at the moment, just a little bit. It would stay regular. Yeah, this was back in 2000. That was part of why I got interested in [inaudible 01:14:58] afterwards actually. So I developed some techniques to solve that problem. So part of it, this problem is really nonlinear because of the curvature of the sphere. There was a certain nonlinear effect, which was a non-perturbative effect. It was when you sort looked at it normally it looked larger than the linear effects of the wave equation. And so it was hard to keep things under control even when your energy was small.
But I developed what’s called a gauge transformation. So the equation is kind of like an evolution of sheaves of wheat, and they’re all bending back and forth, so there’s a lot of motion. But if you imagine stabilizing the flow by attaching little cameras at different points in space, which are trying to move in a way that captures most of the motion, and under this stabilized flow, the flow becomes a lot more linear. I discovered a way to transform the equation to reduce the amount of nonlinear effects, and then I was able to solve the equation. I found the transformation while visiting my aunt in Australia, and I was trying to understand the dynamics of all these fields, and I couldn’t do a pen and paper, and I had not enough facility of computers to do any computer simulations.
So I ended up closing my eyes being on the floor and just imagining myself to actually be this vector field and rolling around to try to see how to change coordinates in such a way that somehow things in all directions would behave in a reasonably linear fashion. And yeah, my aunt walked in on me while I was doing that and she was asking, “Why am I doing this?”
And so the way you should solve these problems is not in this Iron Man mode where you make things maximally difficult, but actually the way you should approach any reasonable math problem is that if there are 10 things that are making your life difficult, find a version of the problem that turns off nine of the difficulties, but only keeps one of them and solve that. And then so you solve nine cheats. Okay, you solve 10 cheats, then the game is trivial, but you solve nine cheats. You solve one problem that teaches you how to deal with that particular difficulty. And then you turn that one-off and you turn someone else something else on, and then you solve that one. And after you know how to solve the 10 problems, 10 difficulties separately, then you have to start merging them a few at a time.
As a kid, I watched a lot of these Hong Kong action movies from our culture, and one thing is that every time it’s a fight scene, so maybe the hero gets swarmed by a hundred bad-guy goons or whatever, but it’ll always be choreographed so that he’d always be only fighting one person at a time and it would defeat that person and move on. And because of that, he could defeat all of them. But whereas if they had fought a bit more intelligently and just swarmed the guy at once, it would make for much worse cinema, but they would win.
But Lean can produce not just the answer, but a proof that how it got the answer of seven as three plus four and all the steps involved. So it creates these more complicated objects, not just statements, but statements with proofs attached to them. And every line of code is just a way of piecing together previous statements to create new ones. So the idea is not new. These things are called proof assistance, and so they provide languages for which you can create quite complicated mathematical proofs. They produce these certificates that give a 100% guarantee that your arguments are correct if you trust the compiler of Lean, but they made the compiler really small and there are several different compilers available for the Lean.
And somewhere in there is the fundamental calculus, but you need to find it. So a lot of the bottleneck now is actually lemma search. There’s a tool that you know is in there somewhere and you need to find it. And so there are various search engine engines specialized for Mathlib that you can do, but there’s now these large language models that you can say, “I need the fundamental calculus at this point.” And it was like, okay, for example, when I code, I have GitHub Copilot installed as a plugin to my IDE, and it scans my text and it sees what I need. Says I might even type, now I need to use the fundamental calculus. And then it might suggest, “Okay, try this,” and maybe 25% of the time it works exactly. And then another ten-fifty percent of the time it doesn’t quite work, but it’s close enough that I can say, oh yeah, if I just change it here and here, it’ll work. And then half the time it gives me complete rubbish. But people are beginning to use AIs a little bit on top, mostly on the level of basically fancy auto-complete that you can type half of one line of a proof and it will find, it’ll tell you.
So we had formalized the proof with this constant 12, and then when this new paper came out, we said, “Oh,” so that took three weeks to formalize and 20 people to formalize this original proof. I said, “Now let’s update the proof to 11.” And what you can do with Lean is in your headline theorem, you change your 12 to 11, you run the compiler and off the thousands of lines of code, you have 90% of them still work and there’s a couple that are lined in red. Now, I can’t justify these steps, but immediately isolates which steps you need to change, but you can skip over everything, which works just fine.
And if you program things correctly with good programming practices, most of your lines will not be red. And there’ll just be a few places where you, if you don’t hard code your constants, but you use smart tactics and so forth, you can localize the things you need to change to a very small period of time. So within a day or two, we had updated our proof because it’s this very quick process, you make a change. There are 10 things now that don’t work. For each one, you make a change and now there’s five more things that don’t work, but the process converges much more smoothly then with pen and paper.
So one thing that Lean really enables is actually collaborating on proofs at a really atomic scale that you really couldn’t do in the past. So traditionally with pen and paper, when you want to collaborate with another mathematician, either you do it at a blackboard where you can really interact, but if you’re doing it sort of by email or something, basically, yeah, you have to segment it. Say, “I’m going to finish section three, you do section four,” but you can’t really work on the same thing, collaborate at the same time.
But with Lean, you can be trying to formalize some portion of proof and say, “I got stuck at line 67 here. I need to prove this thing, but it doesn’t quite work. Here’s the three lines of code I’m having trouble with.” But because all the context is there, someone else can say, “Oh, okay, I recognize what you need to do. You need to apply this trick or this tool,” and you can do extremely atomic-level conversations. So because of Lean, I can collaborate with dozens of people across the world, most of who I have never met in person, and I may not know actually even whether they’re how reliable they are in the proof-taking field, but Lean gives me a certificate of trust so I can do trustless mathematics.
And you try to see if there’s even some skeleton of an approach that might work. And then hopefully that breaks up the problem into smaller sub problems, which you don’t know how to do. But then you focus on the sub ones. And sometimes different collaborators are better at working on certain things. So one of my themes I’m known for is a theme of Ben Green, which now called the Green-Tao theorem. It’s a statement that the primes contain mathematic progressions of an event. So it was a modification of his [inaudible 01:31:26] already. And the way we collaborated was that Ben had already proven a similar result for progressions of length three. He showed that such like the primes contain loss and loss of progressions of length three, even subsets of the primes, certain subsets do, but his techniques only worked for the three progressions. They didn’t work for longer.
But I had these techniques coming from a [inaudible 01:31:48] theory, which is something that I had been playing with and I knew better than Ben at the time. And so if I could justify certain randomness properties of some set relating for primes, there’s a certain technical condition, which if I could have it, if Ben could supply me to this fact, I could conclude the theorem. But what I asked was a really difficult question in number theory, which he said, “There’s no way we can prove this.” So he said, “Can you prove your part of the theorem using a weak hypothesis that I have a chance to prove it?” And he proposed something which he could prove, but it was too weak for me. I can’t use this. So there was this conversation going back and forth, a hacker-
A blueprint is a really pedantically written version of a paper where every step is explained as much detail as possible and just trying to make each step kind of self-contained or depending on only a very specific number of previous statements that been proven so that each node of this blueprint graph that gets generated can be tackled independently of the others. And you don’t even need to know how the whole thing works. So it’s like a modern supply chain. If you want to create an iPhone or some other complicated object, no one person can build up a single object, but you can have specialists who just, if they’re given some widgets from some other company, they can combine them together to form a slightly bigger widget.
But I think with Lean, I’m already starting some projects where we are not just experimenting with data, but experimenting with proofs. So I have this project called the Equational Theories Project. Basically we generated about 22 million little problems in abstract algebra. Maybe I should back up and tell you what the project is. Okay, so abstract algebra studies operations like multiplication, addition and the abstract properties. So multiplication for example, is commutative. X times Y is always Y times X, at least for numbers. And it’s also associative. X times Y times Z is the same as X times Y times Z. So these operations obey some laws that don’t obey others. For example, X times X is not always equal to X. So that law is not always true. So given any operation, it obeys some laws and not others. And so we generated about 4,000 of these possible laws of algebra that certain operations can satisfy.
And our question is which laws imply which other ones, so for example, does commutativity imply associativity? And the answer is no, because it turns out you can describe an operation which obeys the commutative law but doesn’t obey the associative law. So by producing an example, you can show that commutativity does not imply associativity. But some other laws do imply other laws by substitution and so forth, and you can write down some algebraic proof. So we look at all the pairs between these 4,000 laws and this up 22 million of these pairs. And for each pair we ask, does this law imply this law? If so, give a proof. If not, give a counterexample. So 22 million problems, each one of which you could give to an undergraduate algebra student, and they had a decent chance of solving the problem, although there are a few, at least 22 million, like a hundred or so that are really quite hard, but a lot are easy. And the project was just to work out to determine the entire graph which ones imply which other ones.
And I think that that works out. Traditionally, mathematicians just order alphabetically by surname. So we don’t have this tradition as in the sciences of “lead author” and “second author” and so forth, which we’re proud of. We make all the authors equal status, but it doesn’t quite scale to this size. So a decade ago I was involved in these things called polymath projects. It was the crowdsourcing mathematics but without the lean component. So it was limited by, you needed a human moderator to actually check that all the contributions coming in were actually valid. And this was a huge bottleneck, actually, but still we had projects that were 10 authors or so. But we had decided, at the time, not to try to decide who did what, but to have a single pseudonym. So we created this fictional character called DHJ Polymath in the spirit of [inaudible 01:41:51]. This is the pseudonym for a famous group of mathematicians in the 20th century.
And so the paper was authored on the pseudonym, so none of us got the author credit. This actually turned out to be not so great for a couple of reasons. So one is that if you actually wanted to be considered for tenure or whatever, you could not use this paper in your… As you submitted as one your publications, because it didn’t have the formal author credit. But the other thing that we’ve recognized much later is that when people referred to these projects, they naturally referred to the most famous person who was involved in the project. So “This was Tim Gower’s playoff project.” “This was Terence Tao’s playoff project,” and not mention the other 19 or whatever people that were involved.
So I have to ask you here about the integration of AI into this whole process. So DeepMind’s alpha proof was trained using reinforcement learning on both failed and successful formal lean proofs of IMO problems. So this is sort of high-level high school?
And that type of thing, I think it will work very well, type of scaling to once you solve one problem to make the AI attack a hundred adjacent problems. The things that humans do still… So where the AI really struggles right now is knowing when it’s made a wrong turn. It can say, “Oh, I’m going to solve this problem. I’m going to split up this one into these two cases. I’m going to try this technique.” And sometimes, if you’re lucky and it’s a simple problem, it’s the right technique and you solve the problem and sometimes it will have a problem, it would propose an approach which is just complete nonsense, but it looks like a proof.
So this is one annoying thing about LLM-generated mathematics. So yeah, we’ve had human generated mathematics as a very low quality, like submissions who don’t have the formal training and so forth, but if a human proof is bad, you can tell it’s bad pretty quickly. It makes really basic mistakes. But the AI-generated proofs, they can look superficially flawless. And it’s partly because what the reinforcement learning has actually trained them to do, to make things to produce tech that looks like what is correct, which for many applications is good enough. So the air is often really subtle and then when you spot them, they’re really stupid. Like no human would’ve actually made that mistake.
I’ve had conversations with AI where I say, “Okay, we’re going to collaborate to solve this math problem,” and it’s a problem that I already know the solution to, so I try to prompt it. “Okay, so here’s the problem.” I suggest using this tool, and it’ll find this.” Okay, it might start using this, and then it’ll go back to the tool that it wanted to do before. You have to keep railroading it onto the path you want, and I could eventually force it to give the proof I wanted, but it was like herding cats. And the amount of personal effort I had to take to not just prompt it but also check its output because a lot of what it looked like is going to work, I know there’s a problem on line 17, and basically arguing with it. It was more exhausting than doing it unassisted, but that’s the current state of the art.
I mean, it’s still a problem with hallucinating references that don’t exist, but this, I think, is a solvable problem. If you train in the right way and so forth and verify using the internet, you should, in a few years, get to the point where you have a lemma that you need and say, “Has anyone proven this lemma before?” And it will do basically a fancy web search and say, yeah, there are these six papers where something similar has happened. I mean, you can ask it right now and it’ll give you six papers of which maybe one is legitimate and relevant, one exists but is not relevant, and four are hallucinated. It has a non-zero success rate right now, but there’s so much garbage, so much the signal-to-noise ratio is so poor, that it’s most helpful when you already somewhat know the relationship, and you just need to be prompted to be reminded of a paper that was already subconsciously in your memory.
Part of it is we don’t have the right type of training data for this. So for laws of physics, we don’t have a million different universes with a million different laws of nature. And a lot of what we are missing in math is actually the negative space of… So we have published things of things that people have been able to prove, and conjectures that end up being verified or we counter examples produced, but we don’t have data on things that were proposed and they’re kind of a good thing to try, but then people quickly realized that it was the wrong conjecture and then they said, “Oh, but we should actually change our claim to modify it in this way to actually make it more plausible.”
There’s a trial and error process, which is a real integral part of human mathematical discovery, which we don’t record because it’s embarrassing. We make mistakes, and we only like to publish our wins. And the AI has no access to this data to train on. I sometimes joke that basically AI has to go through grad school and actually go to grad courses, do the assignments, go to office hours, make mistakes, get advice on how to correct the mistakes and learn from that.
So it turns out that the sphere is the only surface with this property of contractibility, up to continuous deformations of the sphere. So things that are what called topologically equivalent of the sphere. So Poincare asks the same question, higher dimensions, so it becomes hard to visualize because surface you can think of as embedded in three dimensions, but a curved three-space, we don’t have good intuition of four-dimensional space to live it. And there are also three-dimensional spaces that can’t even fit into four dimensions. You need five or six or higher. But anyway, mathematically you can still pose this question, that if you have a bounded three- dimensional space now, which also has this simply connected property that every loop can be contracted, can you turn it into a three-dimensional version of the sphere? And so this is the Poincare conjecture.
Weirdly, in higher dimensions, four and five was actually easier. So it was solved first in higher dimensions, there’s somehow more room to do the deformation. It is easier to move things around to your sphere. But three was really hard. So people tried many approaches. There’s sort of commentary approaches where you chop up the surface into little triangles or tetrahedra and you just try to argue based on how the faces interact each other. There were algebraic approaches, there’s various algebraic objects like things called the fundamental group that you can attach to these homologies and co-homology and all these very fancy tools. They also didn’t quite work, but Richard Hamilton’s proposed a partial differential equations approach.
So the problem is that… So you have this object, which is secret is a sphere, but it’s given to you in a weird way. So I think of a ball that’s being crumpled up and twisted, and it’s not obvious that it’s the ball, but if you have some sort of surface, which is a deformed sphere, you could for example, think that as a surface of a balloon, you could try to inflate it, you blow it up and naturally as you fill it with air, the wrinkles will sort of smooth out and it will turn into a nice round sphere, unless of course it was a torus or something, which case it would get stuck at some point.
If you inflate a torus, there be a point in the middle when the inner ring shrinks to zero, you get a singularity and you can’t blow up any further and you can’t flow further. So he created this flow, which is now called Ricci Flow, which is a way of taking an arbitrary surface or space and smoothing it out to make it rounder and rounder to make it look like a sphere. And he wanted to show that either this process would give you a sphere, or it would create a singularity, actually very much like how PDEs either they have global regularity or finite and blow up. Basically, it’s almost exactly the same thing. It’s all connected. And he showed that for two dimensions, two-dimensional surfaces, if you start to simply connect it, no singularities ever formed, you never ran into trouble and you could flow and it will give you a sphere. So he got a new proof of the two-dimensional result.
So he managed to classify all the singularities of this problem, and show how to apply surgery to each of these. And through that was able to resolve the Poincare Conjecture. So quite a lot of really ambitious steps, and nothing that a large language model today, for example, could… At best, I could imagine a model proposing this idea as one of hundreds of different things to try, but the other 99 would be complete dead ends. But you’d only find out after months of work, he must have had some sense that this was the right track to pursue. It takes years to get from A to B.
And we estimate 12 of them, but in our notes, I can’t find the estimation of the 13th. Can someone supply that?” And I said, “Sure, I’ll look at this.” Yeah, we didn’t cover it, we completely omitted this term and this term turned out to to be worse than the other 12 terms put together. In fact, we could not estimate this term. And we tried for a few more months and all different permutations, and there was always this one term that we could not control. And so this was very frustrating. But because we had already invested months and months of effort in this already, we stuck at this, which we tried increasingly desperate things and crazy things. And after two years we found an approach that was somewhat different, but quite a bit from our initial strategy, which actually didn’t generate these problematic terms and actually solve the problem.
So we solve the problem after two years, but if we hadn’t had that initial false dawn of nearly solving a problem, we would’ve given up by month two or something and worked on an easier problem. If we had known it would take two years, not sure we would’ve started the project. Sometimes actually having the incorrect, it’s like Columbus struggling in the new world, they had an incorrect measurement of the size of the Earth. He thought he was going to find a new trade route to India, or at least that was how he sold it in his prospectus. I mean, it could be that he actually secretly knew, but.
So I’ve never been super invested in any one problem. One thing that helps is that we don’t need to call our problems in advance. Well, when we do grant proposals, we say we will study this set of problems, but even though we don’t promise, definitely by five years I will supply a proof of all these things. You promise to make some progress or discover some interesting phenomena. And maybe you don’t solve the problem, but you find some related problem that you can say something new about and that’s a much more feasible task.
And any question that only was multiplication is relatively easy to solve. But what has been frustrating is that you combine the two together and suddenly you get the extremely rich… I mean, we know that there are statements in number theory that are actually as undecidable. There are certain polynomials in some number of variables. Is there a solution in the natural numbers? And the answer depends on an undecidable statement whether the axioms of mathematics are consistent or not. But even the simplest problems that combine something more applicative such as the primes with something additives such as shifting by two, separately we understand both of them well, but if you ask when you shift the prime by two, can you get up? How often can you get another prime? It’s been amazingly hard to relate the two.
They could make the twin prime conjecture false by just removing 0.01% of the primes or something, just well-chosen to do this. And so you could present a censored database of the primes, which passes all of these statistical tests of the primes. It obeys things like the polynomial theorem and other effects of the primes, but doesn’t contain any twin primes anymore. And this is a real obstacle to the twin-prime conjecture. It means that any proof strategy to actually find twin primes in the actual primes must fail when applied to these slightly edited primes. And so it must be some very subtle, delicate feature of the primes that you can’t just get from aggregate statistical analysis.
And they’re all proven by some sort of dichotomy where your set is either structured or random and in both cases you can say something and then you put the two together. But in twin primes, if the primes are random, then you are happy, you win. If the primes are structured, they could be structured in a specific way that eliminates the twins. And we can’t rule out that one conspiracy.
So it doesn’t quite work with the primes already because if the primes get sparser and sparser as you go out, that there are fewer and fewer numbers are prime. But it turns out that there’s a way to assign weights to numbers. So there are numbers that are kind of almost prime, but they don’t have no factors at all other than themselves and one. But they have very few factors. And it turns out that we understand almost primes a lot better than primes. And so for example, it was known for a long time that there were twin almost primes. This has been worked out. So almost primes are something we can understand. So you can actually restrict the attention to a suitable set of almost primes. And whereas the primes are very sparse overall relative to the almost primes actually are much less sparse.
You can set up a set of almost primes where the primes have density like say 1%. And that gives you a shot at proving by applying some sort of pigeonhole principle that there’s pairs of primes that are just only 100 apart. But in order to prove the twin prime conjecture, you need to get the density of primes, this having also up to a threshold of 50%. Once you get up to 50%, you will get twin primes. But unfortunately, there are barriers. We know that no matter what kind of good set of almost primes you pick, the density of primes can never get above 50%. It’s what the parity barrier and I would love to fight. So one of my long-term dreams is to find a way to breach that barrier because it would open up not only the twin prime conjecture but the Goldbach conjecture.
And many other problems in number theory are currently blocked because our current techniques would require going beyond this theoretical parity barrier. It’s like going fast as the speed of light.
But in some sense, as you keep averaging more and more, if you sample more and more, the fluctuation should go down as if they were random. And there’s a very precise way to quantify that. And the Riemann hypothesis is a very elegant way that captures this. But as with many other ways in mathematics, we have very few tools to show that something really genuinely behaves really random. And this is actually not just a little bit random, but it’s asking that it behaves as random as it actually random set, this square root cancellation. And we know because of things related to the parity problem actually, that most of us’ usual techniques cannot hope to settle this question. The proof has to come out of left field. But what that is, no one has any serious proposal. And there’s various ways to solve. As I said, you can modify the primes a little bit and you can destroy the Riemann hypothesis.
So it has to be very delicate. You can’t apply something that has huge margins of error. It has to just barely work. And there’s all these pitfalls that you dodge very adeptly.
And the primes have this anti-pattern, as do almost everything really, but we can’t prove that. I guess it’s not mysterious that the primes be random because there’s no reason for them to have any kind of secret pattern. But what is mysterious is what is the mechanism that really forces the randomness to happen? This is just absent.
In fact, there’s some mathematicians who, Alex Kontorovich for instance, who’ve proposed that actually these collapse iterations are like these similar Automator. Actually, if you look at what they happen in binary, they do actually look a little bit like these game of life type patterns. And in analogy to how the game of life can create these massive self-replicating objects and so forth, possibly you could create some sort of heavier-than-air flying machine. A number which is actually encoding this machine, which is just whose job it’s to encode, is to create a version of something which is larger.
It would go down, otherwise it would go up and things like that. So the general class of problems is really as complicated as all the mathematics.
And if there’s one, there’s probably going to be more. And suddenly a lot of our crypto systems are in doubt.
Yeah. So I guess one thing I didn’t realize initially with the Fields Medal is that it sort of makes you part of the establishment. So most mathematicians, just career mathematicians, you just focus on publishing the next paper, maybe promote it one rank, and starting a few projects, may have taken some students or something. But then suddenly people want your opinion on things and you have to think a little bit about things that you might just foolishly say, because you know no one’s going to listen to you, it’s more important now.
And so you have to simplify the [inaudible 02:49:21] 99.9% of humanity becomes the other. Often these models are incorrect, and this causes all kinds of problems. So yeah, to humanize a subject, if you identify a small number of people and say these are representative people of a subject, role models, for example, that has some role, but it can also be too much of it can be harmful because I’ll be the first to say that my own career path is not that of a typical mathematician. The very accelerated education, I skipped a lot of classes. I think I always had very fortunate mentoring opportunities, and I think I was at the right place at the right time. Just because someone doesn’t have my trajectory, it doesn’t mean that they can’t be good mathematicians. They would be, but in a very different style, and we need people of a different style.
And sometimes too much focus is given on the person who does the last step to complete a project in mathematics or elsewhere that’s really taken centuries or decades with lots and lots of, building on lots of previous work. But that’s a story that’s difficult to tell if you’re not an expert. It’s easier to just say one person did this one thing. It makes for a much simpler history.
So it’s a different area of mathematics than the type of mathematics I’m used to. In analysis, which is my area, the objects we study are kind of much closer to the ground. I study things like prime numbers and functions and things that are within scope of a high school math education to at least define. But then, there’s this very advanced algebraic side of number theory where people have been building structures upon structures for quite a while, and it’s a very sturdy structure. It’s been very… At the base, at least it’s extremely well-developed with textbooks and so forth. But it does get to the point where if you haven’t taken these years of study and you want to ask about what is going on at level six of this tower, you have to spend quite a bit of time before they can even get to the point where you can see something that you recognize.
My theory is that humans don’t come, evolution has not given us a math center of a brain directly. We have a vision center and a language center and some other centers, which evolution has honed, but we don’t have an innate sense of mathematics. But our other centers are sophisticated enough that we can repurpose other areas of our brain to do mathematics. So some people have figured out how to use the visual center to do mathematics, and so they think things very visually when they do mathematics. Some people have repurposed their language center and they think very symbolically. Some people, if they are very competitive and they’re gaming, there’s a part of your brain that’s very good at solving puzzles and games, and that can be repurposed.
But when I talk about the mathematicians, they don’t quite think that, I can tell that they’re using some other different styles of thinking, not disjoint, but they may prefer visual. I don’t actually prefer visual so much. I need lots of visual aids myself. Mathematics provides a common language, so we can still talk to each other even if we are thinking in different ways.
So in the sciences, there’s some scope for citizen science, like astronomers. There are amateurs who would discover comets, and there’s biologists that people who could identify butterflies and so forth. And in math, there are a small number of activities where amateur mathematicians can discover new primes and so forth. But previously, because we had to verify every single contribution, most mathematical research projects, it would not help to have input from the general public. In fact, it’ll just be time-consuming because just error checking and everything. But one thing about these formalisation projects is that they are bringing in more people. So I’m sure there are high school students who’ve already contributed to some of these formalizing projects, who’ve contributed to mathlib. You don’t need to be a PhD holder to just work on one atomic thing.
About four or five years ago, I was on a committee where we had to ask for ideas for interesting workshops to run at a math institute. And at the time, Peter Scholze had just formalized one of his new theorems, and there were some other developments in computer-assisted proof that look quite interesting. And I said, “Oh, we should run a workshop on this. This would be a good idea.” And then I was a bit too enthusiastic about this idea, and so I got volun-told to actually run it. So I did with a bunch of other people, Kevin Buzzard and Jordan Ellenberg and a bunch of other people, and it wasn’t a nice success. We pulled together a bunch of mathematicians and computer scientists and other people, and we got up to speed on state of the yard, and it was really interesting developments that most mathematicians didn’t know was going on, lots of nice proofs of concept, just hints of what was going to happen. This was just before ChatGPT, but even then there was one talk about language models and the potential capability of those in the future.
So that got me excited about the subject. So I started giving talks about this is something more of us should start looking at, now that I had arranged, run this conference. And then ChatGPT came out and suddenly AI was everywhere. And so I got interviewed a lot about this topic and in particular, the interaction between AI and [inaudible 03:04:33]. I said, “Yeah, they should be combined. This is perfect synergy to happen here.” And at some point I realized that I have to actually not just talk the talk, but walk the walk. I don’t work in machine learning and I don’t work in proof formalisation, and there’s a limit to how much I can just rely on authority and say, “I’m a mathematician. Just trust me when I say that this is going to change mathematics,” and I don’t do any of it myself. So I felt like I had to actually justify it.
A lot of what I get into, actually, I don’t quite see in advance as how much time I’m going to spend on it, and it’s only after I’m sort of waist deep in a project that I realize, but at that point, I’m committed.
Thank you for listening and hope to see you next time.
Click link to jump approximately to that part in the transcript:
- 0:00 – Introduction
- 0:49 – First hard problem
- 6:16 – Navier–Stokes singularity
- 26:26 – Game of life
- 33:01 – Infinity
- 38:07 – Math vs Physics
- 44:26 – Nature of reality
- 1:07:09 – Theory of everything
- 1:13:10 – General relativity
- 1:16:37 – Solving difficult problems
- 1:20:01 – AI-assisted theorem proving
- 1:32:51 – Lean programming language
- 1:42:51 – DeepMind’s AlphaProof
- 1:47:45 – Human mathematicians vs AI
- 1:57:37 – AI winning the Fields Medal
- 2:04:47 – Grigori Perelman
- 2:17:30 – Twin Prime Conjecture
- 2:34:04 – Collatz conjecture
- 2:40:50 – P = NP
- 2:43:43 – Fields Medal
- 2:51:18 – Andrew Wiles and Fermat’s Last Theorem
- 2:55:16 – Productivity
- 2:57:55 – Advice for young people
- 3:06:17 – The greatest mathematician of all time
Introduction
Lex Fridman
The following is a conversation with Terence Tao, widely considered to be one of the greatest mathematicians in history, often referred to as The Mozart of Math. He won the Fields Medal and the Breakthrough Prize in Mathematics, and has contributed groundbreaking work to a truly astonishing range of fields in mathematics and physics. This was a huge honor for me for many reasons, including the humility and kindness that Terry showed to me throughout all our interactions. It means the world. This is the Lex Fridman Podcast. To support it, please check out our sponsors in the description or at LexFridman.com/sponsors. And now, dear friends, here’s Terence Tao.
The following is a conversation with Terence Tao, widely considered to be one of the greatest mathematicians in history, often referred to as The Mozart of Math. He won the Fields Medal and the Breakthrough Prize in Mathematics, and has contributed groundbreaking work to a truly astonishing range of fields in mathematics and physics. This was a huge honor for me for many reasons, including the humility and kindness that Terry showed to me throughout all our interactions. It means the world. This is the Lex Fridman Podcast. To support it, please check out our sponsors in the description or at LexFridman.com/sponsors. And now, dear friends, here’s Terence Tao.
First hard problem
Lex Fridman
What was the first really difficult research-level math problem that you encountered, one that gave you pause maybe?
What was the first really difficult research-level math problem that you encountered, one that gave you pause maybe?
Terence Tao
Well, in your undergraduate education you learn about the really hard impossible problems like the Riemann Hypothesis, the Twin-Primes Conjecture. You can make problems arbitrarily difficult. That’s not really a problem. In fact, there’s even problems that we know to be unsolvable. What’s really interesting are the problems just on the boundary between what we can do rather easily and what are hopeless, but what are problems where existing techniques can do 90% of the job and then you just need that remaining 10%. I think as a PhD student, the Kakeya Problem certainly caught my eye. And it just got solved actually. It’s a problem I’ve worked on a lot in my early research. Historically, it came from a little puzzle by the Japanese mathematician Soichi Kakeya in 1918 or so. So, the puzzle is that you have a needle on the plane or think like driving on a road something, and you want it to execute a U-turn, you want to turn the needle around, but you want to do it in as little space as possible. So, you want to use this little area in order to turn it around, but the needle is infinitely maneuverable. So, you can imagine just spinning it around. As the unit needle, you can spin it around its center, and I think that gives you a disc of area, I think pi over four. Or you can do a three-point U-turn, which is what we teach people in their driving schools to do. And that actually takes area of pi over eight, so it’s a little bit more efficient than a rotation. And so for a while people thought that was the most efficient way to turn things around, but Besicovitch showed that in fact you could actually turn the needle around using as little area as you wanted. So, 0.01, there was some really fancy multi back and forth U-turn thing that you could do that you could turn a needle around and in so doing it would pass through every intermediate direction. Is
Well, in your undergraduate education you learn about the really hard impossible problems like the Riemann Hypothesis, the Twin-Primes Conjecture. You can make problems arbitrarily difficult. That’s not really a problem. In fact, there’s even problems that we know to be unsolvable. What’s really interesting are the problems just on the boundary between what we can do rather easily and what are hopeless, but what are problems where existing techniques can do 90% of the job and then you just need that remaining 10%. I think as a PhD student, the Kakeya Problem certainly caught my eye. And it just got solved actually. It’s a problem I’ve worked on a lot in my early research. Historically, it came from a little puzzle by the Japanese mathematician Soichi Kakeya in 1918 or so. So, the puzzle is that you have a needle on the plane or think like driving on a road something, and you want it to execute a U-turn, you want to turn the needle around, but you want to do it in as little space as possible. So, you want to use this little area in order to turn it around, but the needle is infinitely maneuverable. So, you can imagine just spinning it around. As the unit needle, you can spin it around its center, and I think that gives you a disc of area, I think pi over four. Or you can do a three-point U-turn, which is what we teach people in their driving schools to do. And that actually takes area of pi over eight, so it’s a little bit more efficient than a rotation. And so for a while people thought that was the most efficient way to turn things around, but Besicovitch showed that in fact you could actually turn the needle around using as little area as you wanted. So, 0.01, there was some really fancy multi back and forth U-turn thing that you could do that you could turn a needle around and in so doing it would pass through every intermediate direction. Is
Lex Fridman
This in the two-dimensional plane?
This in the two-dimensional plane?
Terence Tao
This is in the two-dimensional plane. So, we understand everything in two dimensions. So, the next question is: what happens in three dimensions? So, suppose the Hubble space Telescope is tube in space, and you want to observe every single star in the universe, so you want to rotate the telescope to reach every single direction. And here’s unrealistic part, suppose that space is at a premium, which totally is not, you want to occupy as little volume as possible in order to rotate your needle around, in order to see every single star in the sky. How small a volume do you need to do that? And so you can modify Besicovitch’s construction. And so if your telescope has zero thickness, then you can use as little volume as you need. That’s a simple modification of the two-dimensional construction. But the question is that if your telescope is not zero thickness, but just very, very thin, some thickness delta, what is the minimum volume needed to be able to see every single direction as a function of delta?
This is in the two-dimensional plane. So, we understand everything in two dimensions. So, the next question is: what happens in three dimensions? So, suppose the Hubble space Telescope is tube in space, and you want to observe every single star in the universe, so you want to rotate the telescope to reach every single direction. And here’s unrealistic part, suppose that space is at a premium, which totally is not, you want to occupy as little volume as possible in order to rotate your needle around, in order to see every single star in the sky. How small a volume do you need to do that? And so you can modify Besicovitch’s construction. And so if your telescope has zero thickness, then you can use as little volume as you need. That’s a simple modification of the two-dimensional construction. But the question is that if your telescope is not zero thickness, but just very, very thin, some thickness delta, what is the minimum volume needed to be able to see every single direction as a function of delta?
So, as delta gets smaller, as the needle gets thinner, the volume should go down. But how fast does it go down? And the conjecture was that it goes down very, very slowly like logarithmically roughly speaking, and that was proved after a lot of work. So, this seems like a puzzle. Why is it interesting? So, it turns out to be surprisingly connected to a lot of problems in partial differential equations, in number theory, in geometry, combinatorics. For example, in wave propagation, you splash some water around, you create water waves and they travel in various directions, but waves exhibit both particle and wave-type behavior. So, you can have what’s called a wave packet, which is a very localized wave that is localized in space and moving a certain direction in time. And so if you plot it in both space and time, it occupies a region which looks like a tube. What can happen is that you can have a wave which initially is very dispersed, but it all focuses at a single point later in time. You can imagine dropping a pebble into a pond and the ripples spread out, but then if you time-reverse that scenario, and the equations of wave motion are time-reversible, you can imagine ripples that are converging to a single point and then a big splash occurs, maybe even a singularity. And so it’s possible to do that. And geometrically what’s going on is that there’s also light rays, so if this wave represents light, for example, you can imagine this wave as a superposition of photons all traveling at the speed of light.
They all travel on these light rays and they’re all focusing at this one point. So, you can have a very dispersed wave focus into a very concentrated wave at one point in space and time, but then it de-focuses again, it separates. But potentially if the conjecture had a negative solution, so what that meant is that there’s a very efficient way to pack tubes pointing different directions to a very, very narrow region of a very narrow volume. Then you would also be able to create waves that start out some… There’ll be some arrangement of waves that start out very, very dispersed, but they would concentrate, not just at a single point, but there’ll be a lot of concentrations in space and time. And you could create what’s called a blowup, where these waves amplitude becomes so great that the laws of physics that they’re governed by are no longer wave equations, but something more complicated and nonlinear.
Navier–Stokes singularity
And so in mathematical physics, we care a lot about whether certain equations and wave equations are stable or not, whether they can create these singularities. There’s a famous unsolved problem called the Navier-Stokes regularity problem. So, the Navier-Stokes equations, equations that govern the fluid flow for incompressible fluids like water. The question asks: if you start with a smooth velocity field of water, can it ever concentrate so much that the velocity becomes infinite at some point? That’s called a singularity. We don’t see that in real life. If you splash around water in the bathtub, it won’t explode on you or have water leaving at the speed of light or anything, but potentially it is possible.
And in fact, in recent years, the consensus has drifted towards the belief that, in fact, for certain very special initial configurations of, say, water, that singularities can form, but people have not yet been able to actually establish this. The Clay Foundation has these seven Millennium Prize Problems as a $1 million prize for solving one of these problems, and this is one of them. Of these of these seven, only one of them has been solved, at the Poincare Conjecture [inaudible 00:07:18]. So, the Kakeya Conjecture is not directly directly related to the Navier-Stokes Problem, but understanding it would help us understand some aspects of things like wave concentration, which would indirectly probably help us understand the Navier-Stokes Problem better.
Lex Fridman
Can you speak to the Navier-Stokes? So, the existence of smoothness, like you said, Millennium Prize Problem, You’ve made a lot of progress on this one. In 2016, you published a paper, Finite Time Blowup For An Average Three-Dimensional Navier-Stokes Equation. So, we’re trying to figure out if this thing… Usually it doesn’t blow up, but can we say for sure it never blows up?
Can you speak to the Navier-Stokes? So, the existence of smoothness, like you said, Millennium Prize Problem, You’ve made a lot of progress on this one. In 2016, you published a paper, Finite Time Blowup For An Average Three-Dimensional Navier-Stokes Equation. So, we’re trying to figure out if this thing… Usually it doesn’t blow up, but can we say for sure it never blows up?
Terence Tao
Right, yeah. So yeah, that is literally the $1 million question. So, this is what distinguishes mathematicians from pretty much everybody else. If something holds 99.99% of the time, that’s good enough for most things. But mathematicians are one of the few people who really care about whether really 100% of all situations are covered by it. So, most fluid, most of the time water does not blow up, but could you design a very special initial state that does this?
Right, yeah. So yeah, that is literally the $1 million question. So, this is what distinguishes mathematicians from pretty much everybody else. If something holds 99.99% of the time, that’s good enough for most things. But mathematicians are one of the few people who really care about whether really 100% of all situations are covered by it. So, most fluid, most of the time water does not blow up, but could you design a very special initial state that does this?
Lex Fridman
And maybe we should say that this is a set of equations that govern in the field of fluid dynamics, trying to understand how fluid behaves. And it’s actually turns out to be a really… Fluid is extremely complicated thing to try to model.
And maybe we should say that this is a set of equations that govern in the field of fluid dynamics, trying to understand how fluid behaves. And it’s actually turns out to be a really… Fluid is extremely complicated thing to try to model.
Terence Tao
Yeah, so it has practical importance. So this Clay Prize problem concerns what’s called the Incompressible Navier-Stokes, which governs things like water. There’s something called the Compressible Navier-Stokes, which governs things like air, and that’s particularly important for weather prediction. Weather prediction, it does a lot of computational fluid dynamics. A lot of it’s actually just trying to solve the Navier-Stokes equations as best they can. Also gathering a lot of data, so that they can initialize the equation. There’s a lot of moving parts, so it’s very important from practically.
Yeah, so it has practical importance. So this Clay Prize problem concerns what’s called the Incompressible Navier-Stokes, which governs things like water. There’s something called the Compressible Navier-Stokes, which governs things like air, and that’s particularly important for weather prediction. Weather prediction, it does a lot of computational fluid dynamics. A lot of it’s actually just trying to solve the Navier-Stokes equations as best they can. Also gathering a lot of data, so that they can initialize the equation. There’s a lot of moving parts, so it’s very important from practically.
Lex Fridman
Why is it difficult to prove general things about the set of equations like it not not blowing up?
Why is it difficult to prove general things about the set of equations like it not not blowing up?
Terence Tao
Short answer is Maxwell’s Demon. So, Maxwell’s Demon is a concept in thermodynamics. If you have a box of two gases in oxygen and nitrogen, and maybe you start with all the oxygen on one side and nitrogen on the other side, but there’s no barrier between them. Then they will mix and they should stay mixed. There’s no reason why they should un-mix. But in principle, because of all the collisions between them, there could be some sort of weird conspiracy that maybe there’s a microscopic demon called Maxwell’s Demon that will… every time an oxygen and nitrogen atom collide, they’ll bounce off in such a way that the oxygen sort of drifts onto one side and then nitrogen goes to the other. And you could have an extremely improbable configuration emerge, which we never see, and which statistically it’s extremely unlikely, but mathematically it’s possible that this can happen and we can’t rule that out.
Short answer is Maxwell’s Demon. So, Maxwell’s Demon is a concept in thermodynamics. If you have a box of two gases in oxygen and nitrogen, and maybe you start with all the oxygen on one side and nitrogen on the other side, but there’s no barrier between them. Then they will mix and they should stay mixed. There’s no reason why they should un-mix. But in principle, because of all the collisions between them, there could be some sort of weird conspiracy that maybe there’s a microscopic demon called Maxwell’s Demon that will… every time an oxygen and nitrogen atom collide, they’ll bounce off in such a way that the oxygen sort of drifts onto one side and then nitrogen goes to the other. And you could have an extremely improbable configuration emerge, which we never see, and which statistically it’s extremely unlikely, but mathematically it’s possible that this can happen and we can’t rule that out.
And this is a situation that shows up a lot in mathematics. A basic example is the digits of pi 3.14159 and so forth. The digits look like they have no pattern, and we believe they have no pattern. On the long-term, you should see as many ones and twos and threes as fours and fives and sixes, there should be no preference in the digits of pi to favor, let’s say seven over eight. But maybe there’s some demon in the digits of pi that every time you compute more and more digits, it biases one digit to another. And this is a conspiracy that should not happen. There’s no reason it should happen, but there’s no way to prove it with our current technology. So, getting back to Navier-Stokes, a fluid has a certain amount of energy, and because the fluid is in motion, the energy gets transported around.
And water is also viscous, so if the energy is spread out over many different locations, the natural viscosity of the fluid will just damp out the energy and will go to zero. And this is what happens when we actually experiment with water. You splash around, there’s some turbulence and waves and so forth, but eventually it settles down and the lower the amplitude, the smaller velocity, the more calm it gets. But potentially there is some sort of demon that keeps pushing the energy of the fluid into a smaller and smaller scale, and it’ll move faster and faster. And at faster speeds, the effect of viscosity is relatively less. And so it could happen that it creates some sort of what’s called a self-similar blob scenario where the energy of the fluid starts off at some large scale and then it all sort of transfers energy into a smaller region of the fluid, which then at a much faster rate moves into an even smaller region and so forth.
And each time it does this, it takes maybe half as long as the previous one, and then you could actually converge to all the energy concentrating in one point in a finite amount of time. And that’s scenario is called finite time blowup. So, in practice, this doesn’t happen. So, water is what’s called turbulent. So, it is true that if you have a big eddy of water, it will tend to break up into smaller eddies, but it won’t transfer all energy from one big eddy into one smaller eddy. It will transfer into maybe three or four, and then those ones split up into maybe three or four small eddies of their own. So the energy gets dispersed to the point where the viscosity can then keep everything under control. But if it can somehow concentrate all the energy, keep it all together, and do it fast enough that the viscous effects don’t have enough time to calm everything down, then this blowup can occur.
So, there were papers who had claimed that, “Oh, you just need to take into account conservation of energy and just carefully use the viscosity and you can keep everything under control for not just the Navier-Stokes, but for many, many types of equations like this.” And so in the past there have been many attempts to try to obtain what’s called global regularity for Navier-Stokes, which is the opposite of finite time blowup, that velocity stays smooth. And it all failed. There was always some sign error or some subtle mistake and it couldn’t be salvaged.
So, what I was interested in doing was trying to explain why we were not able to disprove finite time blowup. I couldn’t do it for the actual equations of fluids, which are too complicated, but if I could average the equations of motion of Navier-Stokes, basically if I could turn off certain types of ways in which water interacts and only keep the ones that I want. So, in particular, if there’s a fluid and it could transfer as energy from a large eddy into this small eddy or this other small eddy, I would turn off the energy channel that would transfer energy to this one and direct it only into this smaller eddy while still preserving the lower conservation energy.
Lex Fridman
So, you’re trying to make a blowup?
So, you’re trying to make a blowup?
Terence Tao
Yeah, yeah. So, I basically engineer a blowup by changing rules of physics, which is one thing that mathematicians are allowed to do. We can change the equation.
Yeah, yeah. So, I basically engineer a blowup by changing rules of physics, which is one thing that mathematicians are allowed to do. We can change the equation.
Lex Fridman
How does that help you get closer to the proof of something?
How does that help you get closer to the proof of something?
Terence Tao
Right. So, it provides what’s called an obstruction in mathematics. So, what I did was that basically if I turned off the certain parts of the equation, which usually when you turn off certain interactions, make it less nonlinear, it makes it more regular and less likely to blow up. But I find that by turning off a very well-designed set of interactions, I could force all the energy to blow up in finite time. So, what that means is that if you wanted to prove the regularity for Navier-Stokes for the actual equation, you must use some feature of the true equation, which my artificial equation does not satisfy. So, it rules out certain approaches.
Right. So, it provides what’s called an obstruction in mathematics. So, what I did was that basically if I turned off the certain parts of the equation, which usually when you turn off certain interactions, make it less nonlinear, it makes it more regular and less likely to blow up. But I find that by turning off a very well-designed set of interactions, I could force all the energy to blow up in finite time. So, what that means is that if you wanted to prove the regularity for Navier-Stokes for the actual equation, you must use some feature of the true equation, which my artificial equation does not satisfy. So, it rules out certain approaches.
So, the thing about math, it’s not just about taking a technique that is going to work and applying it, but you need to not take the techniques that don’t work. And for the problems that are really hard, often though are dozens of ways that you might think might apply to solve the problem, but it’s only after a lot of experience that you realize there’s no way that these methods are going to work. So, having these counterexamples for nearby problems rules out… it saves you a lot of time because you’re not wasting energy on things that you now know cannot possibly ever work.
Lex Fridman
How deeply connected is it to that specific problem of fluid dynamics or is this some more general intuition you build up about mathematics?
How deeply connected is it to that specific problem of fluid dynamics or is this some more general intuition you build up about mathematics?
Terence Tao
Right. Yeah. So, the key phenomenon that my technique exploits is what’s called super-criticality. So, in partial [inaudible 00:15:46] equations, often these equations are like a tug of war between different forces. So, in Navier-Stokes, there’s the dissipation force coming from viscosity, and it’s very well understood. It’s linear, it calms things down. If viscosity was all there was, then nothing bad would ever happen, but there’s also transport that energy from… in one location of space can get transported because the fluid is in motion to other locations. And that’s a nonlinear effect, and that causes all the problems. So, there are these two competing terms in the Navier-Stokes Equation, the dissipation term and the transport term. If the dissipation term dominates, if it’s large, then basically you get regularity. And if the transport term dominates, then we don’t know what’s going on. It’s a very nonlinear situation, it’s unpredictable, it’s turbulent.
Right. Yeah. So, the key phenomenon that my technique exploits is what’s called super-criticality. So, in partial [inaudible 00:15:46] equations, often these equations are like a tug of war between different forces. So, in Navier-Stokes, there’s the dissipation force coming from viscosity, and it’s very well understood. It’s linear, it calms things down. If viscosity was all there was, then nothing bad would ever happen, but there’s also transport that energy from… in one location of space can get transported because the fluid is in motion to other locations. And that’s a nonlinear effect, and that causes all the problems. So, there are these two competing terms in the Navier-Stokes Equation, the dissipation term and the transport term. If the dissipation term dominates, if it’s large, then basically you get regularity. And if the transport term dominates, then we don’t know what’s going on. It’s a very nonlinear situation, it’s unpredictable, it’s turbulent.
So, sometimes these forces are in balance at small scales but not in balance at large scales or vice versa. Navier-Stokes is what’s called supercritical. So at smaller and smaller scales, the transport terms are much stronger than the viscosity terms. So, the viscosity terms are things that calm things down. And so this is why the problem is hard. In two dimensions, so the Soviet mathematician Ladyzhenskaya, she in the ’60s shows in two dimensions there was no blowup. And in two dimensions, the Navier-Stokes Equation is what’s called critical, the effect of transport and the effect of viscosity about the same strength even at very, very small scales. And we have a lot of technology to handle critical and also subcritical equations and prove regularity. But for supercritical equations, it was not clear what was going on, and I did a lot of work, and then there’s been a lot of follow up showing that for many other types of supercritical equations, you can create all kinds of blowup examples.
Once the nonlinear effects dominate the linear effects at small scales, you can have all kinds of bad things happen. So, this is sort of one of the main insights of this line of work is that super-criticality versus criticality and subcriticality, this makes a big difference. That’s a key qualitative feature that distinguishes some equations for being sort of nice and predictable and… Like planetary motion, there’s certain equations that you can predict for millions of years or thousands at least. Again, it’s not really a problem, but there’s a reason why we can’t predict the weather past two weeks into the future because it’s a supercritical equation. Lots of really strange things are going on at very fine scales.
Lex Fridman
So, whenever there is some huge source of nonlinearity, that can create a huge problem for predicting what’s going to happen?
So, whenever there is some huge source of nonlinearity, that can create a huge problem for predicting what’s going to happen?
Terence Tao
Yeah. And if non-linearity is somehow more and more featured and interesting at small scales. There’s many equations that are nonlinear, but in many equations you can approximate things by the bulk. So, for example, planetary motion, if you want to understand the orbit of the Moon or Mars or something, you don’t really need the microstructure of the seismology of the Moon or exactly how the mass is distributed. Basically, you can almost approximate these planets by point masses, and it’s just the aggregate behavior is important. But if you want to model a fluid, like the weather, you can’t just say, “In Los Angeles the temperature is this, the wind speed is this.” For supercritical equations, the fine scale information is really important.
Yeah. And if non-linearity is somehow more and more featured and interesting at small scales. There’s many equations that are nonlinear, but in many equations you can approximate things by the bulk. So, for example, planetary motion, if you want to understand the orbit of the Moon or Mars or something, you don’t really need the microstructure of the seismology of the Moon or exactly how the mass is distributed. Basically, you can almost approximate these planets by point masses, and it’s just the aggregate behavior is important. But if you want to model a fluid, like the weather, you can’t just say, “In Los Angeles the temperature is this, the wind speed is this.” For supercritical equations, the fine scale information is really important.
Lex Fridman
If we can just linger on the Navier-Stokes Equations a little bit. So, you’ve suggested, maybe you can describe it, that one of the ways to ways solve it or to negatively resolve it would be to construct a kind of liquid computer, and then show that the halting problem from computation theory has consequences for fluid dynamics, so show it in that way. Can you describe this idea?
If we can just linger on the Navier-Stokes Equations a little bit. So, you’ve suggested, maybe you can describe it, that one of the ways to ways solve it or to negatively resolve it would be to construct a kind of liquid computer, and then show that the halting problem from computation theory has consequences for fluid dynamics, so show it in that way. Can you describe this idea?
Terence Tao
Right, yeah. So, this came out of this work of constructing this average equation that blew up. So, as part of how I had to do this, so there’s this naive way to do it, you just keep pushing. Every time you get one scale, you push it immediately to the next scale as fast as possible. This is sort of the naive way to force blowup. It turns out in five and higher dimensions, this works, but in three dimensions there was this funny phenomenon that I discovered, that if you change laws of physics, you just always keep trying to push the energy into smaller and smaller scales, what happens is that the energy starts getting spread out into many scales at once, so that you have energy at one scale. You’re pushing it into the next scale, and then as soon as it enters that scale, you also push it to the next scale, but there’s still some energy left over from the previous scale.
Right, yeah. So, this came out of this work of constructing this average equation that blew up. So, as part of how I had to do this, so there’s this naive way to do it, you just keep pushing. Every time you get one scale, you push it immediately to the next scale as fast as possible. This is sort of the naive way to force blowup. It turns out in five and higher dimensions, this works, but in three dimensions there was this funny phenomenon that I discovered, that if you change laws of physics, you just always keep trying to push the energy into smaller and smaller scales, what happens is that the energy starts getting spread out into many scales at once, so that you have energy at one scale. You’re pushing it into the next scale, and then as soon as it enters that scale, you also push it to the next scale, but there’s still some energy left over from the previous scale.
You’re trying to do everything at once, and this spreads out the energy too much. And then it turns out that it makes it vulnerable for viscosity to come in and actually just damp out everything. So, it turns out this direct abortion doesn’t actually work. There was a separate paper by some other authors that actually showed this in three dimensions. So, what I needed was to program a delay, so kind of like airlocks. So, I needed an equation which would start with a fluid doing something at one scale, it would push this energy into the next scale, but it would stay there until all the energy from the larger scale got transferred. And only after you pushed all the energy in, then you open the next gate and then you push that in as well.
So, by doing that, the energy inches forward, scale by scale in such a way that it’s always localized at one scale at a time, and then it can resist the effects of viscosity because it’s not dispersed. So, in order to make that happen, I had to construct a rather complicated nonlinearity. And it was basically… It was constructed like an electronic circuit. So, I actually thank my wife for this because she was trained as an electrical engineer, and she talked about she had to design circuits and so forth. And if you want a circuit that does a certain thing, maybe have a light that flashes on and then turns off and then on and off. You can build it from more primitive components, capacitors and resistors and so forth, and you have to build a diagram.
And these diagrams, you can sort of follow up your eyeballs and say, “Oh yeah, the current will build up here and it will stop, and then it will do that.” So, I knew how to build analog of basic electronic components, like resistors and capacitors and so forth. And I would stack them together in such a way that I would create something that would open one gate. And then there’d be a clock, and then once the clock hits a certain threshold, it would close it. It would become a Rube Goldberg type machine, but described mathematically. And this ended up working. So, what I realized is that if you could pull the same thing off for the actual equations, so if the equations of water support a computation… So, you can imagine a steampunk, but it’s really water-punk type of thing where… So, modern computers are electronic, they’re powered by electrons passing through very tiny wires and interacting with other electrons and so forth.
But instead of electrons, you can imagine these pulses of water moving a certain velocity. And maybe there are two different configurations corresponding to a bit being up or down. Probably that if you had two of these moving bodies of water collide, they would come out with some new configuration, which would be something like an AND gate or OR gate, that the output would depend in a very predictable way on the inputs. And you could chain these together and maybe create a Turing machine. And then you have computers which are made completely out of water. And if you have computers, then maybe you can do robotics, so hydraulics and so forth. And so you could create some machine which is basically a fluid analog, what’s called a von Neumann machine.
So, von Neumann proposed if you want to colonize Mars, the sheer cost of transporting people in machines to Mars is just ridiculous, but if you could transport one machine to Mars, and this machine had the ability to mine the planet, create some more materials, smelt them and build more copies of the same machine, then you could colonize a whole planet over time. So, if you could build a fluid machine, which yeah, so it’s a fluid robot. And what it would do, its purpose in life, it’s programmed so that it would create a smaller version of itself in some sort of cold state. It wouldn’t start just yet. Once it’s ready, the big robot configuration of water would transfer all its energy into the smaller configuration and then power down. And then they clean itself up, and then what’s left is this newest state which would then turn on and do the same thing, but smaller and faster.
And then the equation has a certain scaling symmetry. Once you do that, it can just keep iterating. So, this, in principle, would create a blowup for the actual Navier-Stokes. And this is what I managed to accomplish for this average Navier-Stokes. So, it provided this sort of roadmap to solve the problem. Now, this is a pipe dream because there are so many things that are missing for this to actually be a reality. So, I can’t create these basic logic gates. I don’t have these special configurations of water. There’s candidates, these include vortex rings that might possibly work. But also analog computing is really nasty compared to digital computing because there’s always errors. You have to do a lot of error correction along the way.
I don’t know how to completely power down the big machine, so it doesn’t interfere the writing of the smaller machine, but everything in principle can happen. It doesn’t contradict any of the laws of physics, so it’s sort of evidence that this thing is possible. There are other groups who are now pursuing ways to make Navier-Stokes blow up, which are nowhere near as ridiculously complicated as this. They actually are pursuing much closer to the direct self-similar model, which can… It doesn’t quite work as is, but there could be some simpler scheme they want to just describe to make this work.
Lex Fridman
There is a real leap of genius here to go from Navier-Stokes to this Turing machine. So, it goes from what the self-similar blob scenario that you’re trying to get the smaller and smaller blob to now having a liquid Turing machine gets smaller and smaller and smaller, and somehow seeing how that could be used to say something about a blowup. That’s a big leap.
There is a real leap of genius here to go from Navier-Stokes to this Turing machine. So, it goes from what the self-similar blob scenario that you’re trying to get the smaller and smaller blob to now having a liquid Turing machine gets smaller and smaller and smaller, and somehow seeing how that could be used to say something about a blowup. That’s a big leap.
Game of life
Terence Tao
So, there’s precedent. So, the thing about mathematics is that it’s really good at spotting connections between what you might think of as completely different problems, but if the mathematical form is the same, you can draw a connection. So, there’s a lot of previously on what called cellular automata, the most famous of which is Conway’s Game of Life. There’s this infinite discrete grid, and at any given time, the grid is either occupied by a cell or it’s empty. And there’s a very simple rule that tells you how these cells evolve. So, sometimes cells live and sometimes they die. And when I was a student, it was a very popular screen saver to actually just have these animations go on, and they look very chaotic. In fact, they look a little bit like turbulent flow sometimes, but at some point people discovered more and more interesting structures within this Game of Life. So, for example, they discovered this thing called glider.
So, there’s precedent. So, the thing about mathematics is that it’s really good at spotting connections between what you might think of as completely different problems, but if the mathematical form is the same, you can draw a connection. So, there’s a lot of previously on what called cellular automata, the most famous of which is Conway’s Game of Life. There’s this infinite discrete grid, and at any given time, the grid is either occupied by a cell or it’s empty. And there’s a very simple rule that tells you how these cells evolve. So, sometimes cells live and sometimes they die. And when I was a student, it was a very popular screen saver to actually just have these animations go on, and they look very chaotic. In fact, they look a little bit like turbulent flow sometimes, but at some point people discovered more and more interesting structures within this Game of Life. So, for example, they discovered this thing called glider.
So, a glider is a very tiny configuration of four or five selves which evolves and it just moves at a certain direction. And that’s like this vortex rings [inaudible 00:27:09]. Yeah, so this is an analogy, the Game of Life is a discrete equation, and the fluid Navier-Stokes is a continuous equation, but mathematically they have some similar features. And so over time people discovered more and more interesting things that you could build within the Game of Life. The Game of Life is a very simple system. It only has like three or four rules to do it, but you can design all kinds of interesting configurations inside it. There’s some called a glider gun that does nothing that spit out gliders one at a time. And then after a lot of effort, people managed to create AND gates and OR gates for gliders.
There’s this massive ridiculous structure, which if you have a stream of gliders coming in here and a stream of gliders coming in here, then you may produce extreme gliders coming out. Maybe if both of the streams have gliders, then there’ll be an output stream, but if only one of them does, then nothing comes out. So, they could build something like that. And once you could build these basic gates, then just from software engineering, you can build almost anything. You can build a Turing machine. It’s enormous steampunk type things. They look ridiculous. But then people also generated self-replicating objects in the Game of Life, a massive machine, a [inaudible 00:28:31] machine, which over a huge period of time and always look like glider guns inside doing these very steampunk calculations. It would create another version of itself which could replicate.
Lex Fridman
That’s so incredible.
That’s so incredible.
Terence Tao
A lot of this was like community crowdsourced by amateur mathematicians actually. So, I knew about that work. And so that is part of what inspired me to propose the same thing with Navier-Stokes. Seriously, analog is much worse than digital. It’s going to be… You can’t just directly take deconstructions in the Game of Life and plunk them in. But again, it shows it’s possible.
A lot of this was like community crowdsourced by amateur mathematicians actually. So, I knew about that work. And so that is part of what inspired me to propose the same thing with Navier-Stokes. Seriously, analog is much worse than digital. It’s going to be… You can’t just directly take deconstructions in the Game of Life and plunk them in. But again, it shows it’s possible.
Lex Fridman
There’s a kind of emergence that happens with these cellular automata local rules… maybe it’s similar to fluids, I don’t know, but local rules operating at scale can create these incredibly complex dynamic structures. Do you think any of that is amenable to mathematical analysis? Do we have the tools to say something profound about that?
There’s a kind of emergence that happens with these cellular automata local rules… maybe it’s similar to fluids, I don’t know, but local rules operating at scale can create these incredibly complex dynamic structures. Do you think any of that is amenable to mathematical analysis? Do we have the tools to say something profound about that?
Terence Tao
The thing is, you can get these emergent very complicated structures, but only with very carefully prepared initial conditions. So, these glider guns and gates and self-propelled machines, if you just plunk on randomly some cells and you unlink them, you will not see any of these. And that’s the analogous situation with Navier-Stokes again, that with typical initial conditions, you will not have any of this weird computation going on. But basically through engineering, by specially designing things in a very special way, you can make clever constructions.
The thing is, you can get these emergent very complicated structures, but only with very carefully prepared initial conditions. So, these glider guns and gates and self-propelled machines, if you just plunk on randomly some cells and you unlink them, you will not see any of these. And that’s the analogous situation with Navier-Stokes again, that with typical initial conditions, you will not have any of this weird computation going on. But basically through engineering, by specially designing things in a very special way, you can make clever constructions.
Lex Fridman
I wonder if it’s possible to prove the negative of… basically prove that only through engineering can you ever create something interesting.
I wonder if it’s possible to prove the negative of… basically prove that only through engineering can you ever create something interesting.
Terence Tao
Yeah. This is a recurring challenge in mathematics that I call the dichotomy between structure and randomness, that most objects that you can generate in mathematics are random. They look like random, like the digital supply, well, we believe is a good example. But there’s a very small number of things that have patterns. But now, you can prove something has a pattern by just constructing… If something has a simple pattern and you have a proof that it does something like repeat itself every so often, you can do that and you can prove that… For example, you can prove that most sequences of digits have no pattern. So, if you just pick digits randomly, there’s something called low-large numbers. It tells you you’re going to get as many ones as twos in the long run. But we have a lot fewer tools to…
Yeah. This is a recurring challenge in mathematics that I call the dichotomy between structure and randomness, that most objects that you can generate in mathematics are random. They look like random, like the digital supply, well, we believe is a good example. But there’s a very small number of things that have patterns. But now, you can prove something has a pattern by just constructing… If something has a simple pattern and you have a proof that it does something like repeat itself every so often, you can do that and you can prove that… For example, you can prove that most sequences of digits have no pattern. So, if you just pick digits randomly, there’s something called low-large numbers. It tells you you’re going to get as many ones as twos in the long run. But we have a lot fewer tools to…
If I give you a specific pattern like the digits of pi, how can I show that this doesn’t have some weird pattern to it? Some other work that I spent a lot of time on is to prove what are called structure theorems or inverse theorems that give tests for when something is very structured. So, some functions are what’s called additive. If you have a function of natural numbers of the natural numbers, so maybe two maps to four, three maps to six and so forth, some functions are what’s called additive, which means that if you add two inputs together, the output gets added as well. For example, a multiply by constant. If you multiply a number by 10… If you multiply A plus B by 10, that’s the same as multiplying A by 10 and B by 10, and then adding them together. So, some functions are additive, some functions are kind of additive but not completely additive.
So, for example, if I take a number, and I multiply by the square of two and I take the integer part of that, so 10 by square route of two is like 14 point something, so 10 up to 14, 20 or up to 28. So, in that case, additivity is true then, so 10 plus 10 is 20 and 14 plus 14 is 28. But because of this rounding, sometimes there’s round-up errors, and sometimes when you add A plus A, this function doesn’t quite give you the sum of the two individual outputs, but the sum plus/minus one. So, it’s almost additive, but not quite additive.
So, there’s a lot of useful results in mathematics, and I’ve worked a lot on developing things like this, to the effect that if a function exhibits some structure like this, then it’s basically there’s a reason for why it’s true. And the reason is because there’s some other nearby function, which is actually completely structured, which is explaining this sort of partial pattern that you have. And so if you have these inverse theorems, it creates this dichotomy that either the objects that you study are either have no structure at all or they are somehow related to something kind of structured. And in either way, in either case, you can make progress. A good example of this is that there’s this old theorem in mathematics-
Infinity
Terence Tao
A good example of this is that there’s this old theorem in mathematics called Szemerédi’s Theorem, proven in the 1970s. It concerns trying to find a certain type of pattern in a set of numbers, the patterns of arithmetic progression. Things like three, five, and seven or 10, 15 and 20, and Szemerédi, Endre Szemerédi proved that any set of numbers that are sufficiently big, what’s called positive density, has arithmetic progressions in it of any length you wish.
A good example of this is that there’s this old theorem in mathematics called Szemerédi’s Theorem, proven in the 1970s. It concerns trying to find a certain type of pattern in a set of numbers, the patterns of arithmetic progression. Things like three, five, and seven or 10, 15 and 20, and Szemerédi, Endre Szemerédi proved that any set of numbers that are sufficiently big, what’s called positive density, has arithmetic progressions in it of any length you wish.
For example, the odd numbers have a density of one half, and they contain arithmetic progressions of any length. So in that case, it’s obvious, because the odd numbers are really, really structured. I can just take 11, 13, 15, 17, I can easily find arithmetic progressions in that set, but Szemerédi’s theorem also applies to random sets. If I take a set of odd numbers and I flip a coin for each number, and I only keep the numbers for which I got a heads… So I just flip coins, I just randomly take out half the numbers, I keep one half. That’s a set that has no patterns at all, but just from random fluctuations, you will still get a lot of arithmetic progressions in that set.
Lex Fridman
Can you prove that there’s arithmetic progressions of arbitrary length within a random-
Can you prove that there’s arithmetic progressions of arbitrary length within a random-
Terence Tao
Yes. Have you heard of the infinite monkey theorem? Usually, mathematicians give boring names to theorems, but occasionally they give colorful names.
Yes. Have you heard of the infinite monkey theorem? Usually, mathematicians give boring names to theorems, but occasionally they give colorful names.
Lex Fridman
Yes.
Yes.
Terence Tao
The popular version of the infinite monkey theorem is that if you have an infinite number of monkeys in a room, each with typewriter, they type out text randomly, almost surely, one of them is going to generate the entire script of Hamlet, or any other finite string of text. It’ll just take some time, quite a lot of time, actually, but if you have an infinite number, then it happens.
The popular version of the infinite monkey theorem is that if you have an infinite number of monkeys in a room, each with typewriter, they type out text randomly, almost surely, one of them is going to generate the entire script of Hamlet, or any other finite string of text. It’ll just take some time, quite a lot of time, actually, but if you have an infinite number, then it happens.
So basically, the theorem is that if you take an infinite string of digits or whatever, eventually any finite pattern you wish will emerge. It may take a long time, but it will eventually happen. In particular, arithmetic progressions of any length will eventually happen, but you need an extremely long random sequence for this to happen.
Lex Fridman
I suppose that’s intuitive. It’s just infinity.
I suppose that’s intuitive. It’s just infinity.
Terence Tao
Yeah, infinity absorbs a lot of sins.
Yeah, infinity absorbs a lot of sins.
Lex Fridman
Yeah. How we humans supposed to deal with infinity?
Yeah. How we humans supposed to deal with infinity?
Terence Tao
Well, you can think of infinity as an abstraction of a finite number of which you do not have a bound. So nothing in real life is truly infinite, but you can ask yourself questions like, “What if I had as much money as I wanted?”, or, “What if I could go as fast as I wanted?”, and a way in which mathematicians formalize that is mathematics has found a formalism to idealize, instead of something being extremely large or extremely small, to actually be exactly infinite or zero, and often the mathematics becomes a lot cleaner when you do that. I mean, in physics, we joke about assuming spherical cows, real world problems have got all kinds of real world effects, but you can idealize, send some things to infinity, send some things to zero, and the mathematics becomes a lot simpler to work within.
Well, you can think of infinity as an abstraction of a finite number of which you do not have a bound. So nothing in real life is truly infinite, but you can ask yourself questions like, “What if I had as much money as I wanted?”, or, “What if I could go as fast as I wanted?”, and a way in which mathematicians formalize that is mathematics has found a formalism to idealize, instead of something being extremely large or extremely small, to actually be exactly infinite or zero, and often the mathematics becomes a lot cleaner when you do that. I mean, in physics, we joke about assuming spherical cows, real world problems have got all kinds of real world effects, but you can idealize, send some things to infinity, send some things to zero, and the mathematics becomes a lot simpler to work within.
Lex Fridman
I wonder how often using infinity forces us to deviate from the physics of reality.
I wonder how often using infinity forces us to deviate from the physics of reality.
Terence Tao
So there’s a lot of pitfalls. So we spend a lot of time in undergraduate math classes teaching analysis, and analysis is often about how to take limits and whether…
So there’s a lot of pitfalls. So we spend a lot of time in undergraduate math classes teaching analysis, and analysis is often about how to take limits and whether…
So for example, A plus B is always B plus A. So when you have a finite number of terms and you add them, you can swap them and there’s no problem, but when you have an infinite number of terms, they’re these sort of show games you can play where you can have a series which converges to one value, but you rearrange it, and it suddenly converges to another value, and so you can make mistakes. You have to know what you’re doing when you allow infinity. You have to introduce these epsilons and deltas, and there’s a certain type of wave of reasoning that helps you avoid mistakes.
In more recent years, people have started taking results that are true in infinite limits and what’s called finitizing them. So you know that something’s true eventually, but you don’t know when. Now give me a rate. So such… If I don’t have an infinite number of monkeys, but a large finite number of monkeys, how long do I have to wait for Hamlet to come out? That’s a more quantitative question, and this is something that you can attack by purely finite methods, and you can use your finite intuition, and in this case, it turns out to be exponential in the length of the text that you’re trying to generate.
So this is why you never see the monkeys create Hamlet. You can maybe see them create a four letter word, but nothing that big, and so I personally find once you finitize an infinite statement, it does come much more intuitive, and it’s no longer so weird.
Lex Fridman
So even if you’re working with infinity, it’s good to finitize so that you can have some intuition?
So even if you’re working with infinity, it’s good to finitize so that you can have some intuition?
Terence Tao
Yeah, the downside is that the finitized groups are just much, much messier. So the infinite ones are found first usually, decades earlier, and then later on, people finitize them.
Yeah, the downside is that the finitized groups are just much, much messier. So the infinite ones are found first usually, decades earlier, and then later on, people finitize them.
Math vs Physics
Lex Fridman
So since we mentioned a lot of math and a lot of physics, what is the difference between mathematics and physics as disciplines, as ways of understanding, of seeing the world? Maybe we can throw engineering in there, you mentioned your wife is an engineer, give it new perspective on circuits. So this different way of looking at the world, given that you’ve done mathematical physics, so you’ve worn all the hats.
So since we mentioned a lot of math and a lot of physics, what is the difference between mathematics and physics as disciplines, as ways of understanding, of seeing the world? Maybe we can throw engineering in there, you mentioned your wife is an engineer, give it new perspective on circuits. So this different way of looking at the world, given that you’ve done mathematical physics, so you’ve worn all the hats.
Terence Tao
Right. So I think science in general is interaction between three things. There’s the real world, there’s what we observe of the real world, observations, and then our mental models as to how we think the world works.
Right. So I think science in general is interaction between three things. There’s the real world, there’s what we observe of the real world, observations, and then our mental models as to how we think the world works.
We can’t directly access reality. All we have are the observations, which are incomplete and they have errors, and there are many, many cases where we want to know, for example, what is the weather like tomorrow, and we don’t yet have the observation, but we’d like to. A prediction.
Then we have these simplified models, sometimes making unrealistic assumptions, spherical cow type things. Those are the mathematical models.
Mathematics is concerned with the models. Science collects the observations, and it proposes the models that might explain these observations. What mathematics does, we stay within the model, and we ask what are the consequences of that model? What observations, what predictions would the model make of future observations, or past observations? Does it fit? Observe data?
So there’s definitely a symbiosis. I guess mathematics is unusual among other disciplines is that we start from hypotheses, like the axioms of a model, and ask what conclusions come up from that model. In almost any other discipline, you start with the conclusions. “I want to do this. I want to build a bridge, I want to make money, I want to do this,” and then you find the paths to get there. There’s a lot less sort of speculation about, “Suppose I did this, what would happen?”. Planning and modeling. Speculative fiction maybe is one other place, but that’s about it, actually. Most of the things we do in life is conclusions driven, including physics and science. I mean, they want to know, “Where is this asteroid going to go? What is the weather going to be tomorrow?”, but mathematics also has this other direction of going from the axioms.
Lex Fridman
What do you think… There is this tension in physics between theory and experiment. What do you think is the more powerful way of discovering truly novel ideas about reality?
What do you think… There is this tension in physics between theory and experiment. What do you think is the more powerful way of discovering truly novel ideas about reality?
Terence Tao
Well, you need both, top down and bottom up. It’s really an interaction between all these… So over time, the observations and the theory and the modeling should both get closer to reality, but initially, and this is always the case out there, they’re always far apart to begin with, but you need one to figure out where to push the other.
Well, you need both, top down and bottom up. It’s really an interaction between all these… So over time, the observations and the theory and the modeling should both get closer to reality, but initially, and this is always the case out there, they’re always far apart to begin with, but you need one to figure out where to push the other.
So if your model is predicting anomalies that are not predicted by experiment, that tells experimenters where to look to find more data to refine the models. So it goes back and forth.
Within mathematics itself, there’s also a theory and experimental component. It’s just that until very recently, theory has dominated almost completely. 99% of mathematics is theoretical mathematics, and there’s a very tiny amount of experimental mathematics. People do do it. If they want to study prime numbers or whatever, they can just generate large data sets.
So once we had the computers, we had to do it a little bit. Although even before… Well, like Gauss for example, he discovered a reconjection, the most basic theorem in number theory, called the prime number theorem, which predicts how many primes up to a million, up to a trillion. It’s not an obvious question, and basically what he did was that he computed, mostly by himself, but also hired human computers, people whose professional job it was to do arithmetic, to compute the first hundred thousand primes or something, and made tables and made a prediction. That was an early example of experimental mathematics, but until very recently, it was not…
I mean, theoretical mathematics was just much more successful. Of course, doing complicated mathematical computations was just not feasible until very recently, and even nowadays, even though we have powerful computers, only some mathematical things can be explored numerically.
There’s something called the combinatorial explosion. If you want us to study, for example, Szemerédi’s theorem, you want to study all possible subsets of numbers one to a thousand. There’s only 1000 numbers. How bad could it be? It turns out the number of different subsets of one to a thousand is two to the power of 1000, which is way bigger than any computer can currently enumerate.
So there are certain math problems that very quickly become just intractable to attack by direct brute force computation. Chess is another famous example. The number of chess positions, we can’t get a computer to fully explore, but now we have AI, we have tools to explore this space, not with 100% guarantees of success, but with experiment. So we can empirically solve chess now. For example, we have very, very good AIs that don’t explore every single position in the game tree, but they have found some very good approximation, and people are using actually these chess engines to do experimental chess. They’re revisiting old chess theories about, “Oh, when you do this type of opening… This is a good type of move, this is not,” and they can use these chess engines to actually refine, and in some cases, overturn conventional wisdom about chess, and I do hope that that mathematics will have a larger experimental component in the future, perhaps powered by AI.
Lex Fridman
We’ll, of course, talk about that, but in the case of chess, and there’s a similar thing in mathematics, I don’t believe it’s providing a kind of formal explanation of the different positions. It’s just saying which position is better or not that you can intuit as a human being, and then from that, we humans can construct a theory of the matter.
We’ll, of course, talk about that, but in the case of chess, and there’s a similar thing in mathematics, I don’t believe it’s providing a kind of formal explanation of the different positions. It’s just saying which position is better or not that you can intuit as a human being, and then from that, we humans can construct a theory of the matter.
Nature of reality
You’ve mentioned the Plato’s cave allegory. In case people don’t know, it’s where people are observing shadows of reality, not reality itself, and they believe what they’re observing to be reality. Is that, in some sense, what mathematicians and maybe all humans are doing, is looking at shadows of reality? Is it possible for us to truly access reality?
Terence Tao
Well, there are these three ontological things. There’s actual reality, there’s observations and our models, and technically they are distinct, and I think they will always be distinct, but they can get closer over time, and the process of getting closer often means that you have to discard your initial intuitions. So astronomy provides great examples, like an initial model of the world is flat because it looks flat and it’s big, and the rest of the universe, the skies, is not. The sun, for example, looks really tiny.
Well, there are these three ontological things. There’s actual reality, there’s observations and our models, and technically they are distinct, and I think they will always be distinct, but they can get closer over time, and the process of getting closer often means that you have to discard your initial intuitions. So astronomy provides great examples, like an initial model of the world is flat because it looks flat and it’s big, and the rest of the universe, the skies, is not. The sun, for example, looks really tiny.
So you start off with a model, which is actually really far from reality, but it fits the observations that you have. So things look good, but over time, as you make more and more observations, bring it closer to reality, the model gets dragged along with it, and so over time, we had to realize that the earth was round, that it spins, it goes around the solar system, solar system goes around the galaxy, and so on and so forth, and the universe was expanding. Expansions is self-expanding, accelerating, and in fact, very recently this year… So even the acceleration of the universe itself, this evidence now is non-constant.
Lex Fridman
The explanation behind why that is…
The explanation behind why that is…
Terence Tao
It’s catching up.
It’s catching up.
Lex Fridman
It’s catching up. I mean, it’s still the dark matter, dark energy, this kind of thing.
It’s catching up. I mean, it’s still the dark matter, dark energy, this kind of thing.
Terence Tao
We have a model that explains, that fits the data really well. It just has a few parameters that you have to specify. So people say, “Oh, that’s fudge factors. With enough fudge factors, you can explain anything,” but the mathematical point over the model is that you want to have fewer parameters in your model and data points in your observational set.
We have a model that explains, that fits the data really well. It just has a few parameters that you have to specify. So people say, “Oh, that’s fudge factors. With enough fudge factors, you can explain anything,” but the mathematical point over the model is that you want to have fewer parameters in your model and data points in your observational set.
So if you have a model with 10 parameters that explains 10 observations, that is a completely useless model, its what’s called overfitted, but if you have a model with two parameters and it explains a trillion observations, which is basically the dark matter model, I think it has 14 parameters, and it explains petabytes of data that the astronomers have.
You can think of a theory. One way to think about a physical mathematical theory is it’s a compression of the universe, and a data compression. So you have these petabytes of observations, you like to compress it to a model which you can describe in five pages and specify a certain number of parameters, and if it can fit, to reasonable accuracy, almost all of your observations, the more compression that you make, the better your theory.
Lex Fridman
In fact, one of the great surprises of our universe and of everything in it is that it’s compressible at all. That’s the unreasonable effectiveness of mathematics
In fact, one of the great surprises of our universe and of everything in it is that it’s compressible at all. That’s the unreasonable effectiveness of mathematics
Terence Tao
Yeah, Einstein had a quote like that. “The most incomprehensible thing about the universe is that it is comprehensible.”
Yeah, Einstein had a quote like that. “The most incomprehensible thing about the universe is that it is comprehensible.”
Lex Fridman
Right, and not just comprehensible. You can do an equation like e=MC2.
Right, and not just comprehensible. You can do an equation like e=MC2.
Terence Tao
There is actually some possible explanation for that. So there’s this phenomenon in mathematics called universality. So, many complex systems at the macro scale are coming out of lots of tiny interactions at the macro scale, and normally, because of the commutative explosion, you would think that the macro scale equations must be infinitely, exponentially more complicated than the macro scale ones, and they are, if you want to solve them completely exactly. If you want to model all the atoms in a box of air…
There is actually some possible explanation for that. So there’s this phenomenon in mathematics called universality. So, many complex systems at the macro scale are coming out of lots of tiny interactions at the macro scale, and normally, because of the commutative explosion, you would think that the macro scale equations must be infinitely, exponentially more complicated than the macro scale ones, and they are, if you want to solve them completely exactly. If you want to model all the atoms in a box of air…
Like Avogadro’s number is humongous. There’s a huge number of particles. If you actually tried to track each one, it’ll be ridiculous, but certain laws emerge at the microscopic scale that almost don’t depend on what’s going on at the macro scale, or only depend on a very small number of parameters.
So if you want to model a gas of a quintillion particles in a box, you just need to know is temperature and pressure and volume, and a few parameters, like five or six, and it models almost everything you need to know about these 10 to 23 or whatever particles. So we don’t understand universality anywhere near as we would like mathematically, but there are much simpler toy models where we do have a good understanding of why universality occurs. The most basic one is the central limit theorem that explains why the bell curve shows up everywhere in nature, that so many things are distributed by what’s called a Gaussian distribution, famous bell curve. There’s now even a meme with this curve.
Lex Fridman
And even the meme applies broadly. The universality to the meme.
And even the meme applies broadly. The universality to the meme.
Terence Tao
Yes, you can go meta if you like, but there are many, many processes. For example, you can take lots of independent random variables and average them together in various ways. You can take a simple average or more complicated average, and we can prove in various cases that these bell curves, these Gaussians, emerge, and it is a satisfying explanation.
Yes, you can go meta if you like, but there are many, many processes. For example, you can take lots of independent random variables and average them together in various ways. You can take a simple average or more complicated average, and we can prove in various cases that these bell curves, these Gaussians, emerge, and it is a satisfying explanation.
Sometimes they don’t. So if you have many different inputs and they’re all correlated in some systemic way, then you can get something very far from a bell curve to show up, and this is also important to know when [inaudible 00:49:55] fails. So universality is not a 100% reliable thing to rely on. The global financial crisis was a famous example of this. People thought that mortgage defaults had this sort of Gaussian type behavior, that if a population of a hundred thousand Americans with mortgages ask what proportion of them would default on their mortgages, if everything was de-correlated, it would be an asset bell curve, and you can manage risk of options and derivatives and so forth, and there’s a very beautiful theory, but if there are systemic shocks in the economy that can push everybody to default at the same time, that’s very non-Gaussian behavior, and this wasn’t fully accounted for in 2008.
Now I think there’s some more awareness that this systemic risk is actually a much bigger issue, and just because the model is pretty and nice, it may not match reality. So the mathematics of working out what models do is really important, but also the science of validating when the models fit reality and when they don’t… You need both, but mathematics can help, because for example, these central limit theorems, it tells you that if you have certain axioms like non-correlation, that if all the inputs were not correlated to each other, then you have this Gaussian behavior and things are fine. It tells you where to look for weaknesses in the model.
So if you have a mathematical understanding of Szemerédi’s theorem, and someone proposes to use these Gaussian [inaudible 00:51:32] or whatever to model default risk, if you’re mathematically trained, you would say, “Okay, but what are the systemic correlation between all your inputs?”, and so then you can ask the economist, “How much of a risk is that?”, and then you can go look for that. So there’s always this synergy between science and mathematics.
Lex Fridman
A little bit on the topic of universality, you’re known and celebrated for working across an incredible breadth of mathematics, reminiscent of Hilbert a century ago. In fact, the great Fields Medal winning mathematician Tim Gowers has said that you are the closest thing we get to Hilbert. He’s a colleague of yours.
A little bit on the topic of universality, you’re known and celebrated for working across an incredible breadth of mathematics, reminiscent of Hilbert a century ago. In fact, the great Fields Medal winning mathematician Tim Gowers has said that you are the closest thing we get to Hilbert. He’s a colleague of yours.
Terence Tao
Oh yeah, good friend.
Oh yeah, good friend.
Lex Fridman
But anyway, so you are known for this ability to go both deep and broad in mathematics. So you’re the perfect person to ask. Do you think there are threads that connect all the disparate areas of mathematics? Is there a kind of a deep, underlying structure to all of mathematics?
But anyway, so you are known for this ability to go both deep and broad in mathematics. So you’re the perfect person to ask. Do you think there are threads that connect all the disparate areas of mathematics? Is there a kind of a deep, underlying structure to all of mathematics?
Terence Tao
There’s certainly a lot of connecting threads, and a lot of the progress of mathematics can be represented by taking… By stories of two fields of mathematics that were previously not connected, and finding connections.
There’s certainly a lot of connecting threads, and a lot of the progress of mathematics can be represented by taking… By stories of two fields of mathematics that were previously not connected, and finding connections.
An ancient example is geometry and number theory. So in the times of the ancient Greeks, these were considered different subjects. I mean, mathematicians worked on both. Euclid worked both on geometry, most famously, but also on numbers, but they were not really considered related. I mean, a little bit, like you could say that this length was five times this length because you could take five copies of this length and so forth, but it wasn’t until Descartes, who developed analytical geometry, that you can parameterize the plane, a geometric object, by two real numbers. So geometric problems can be turned into problems about numbers.
Today this feels almost trivial. There’s no content to this. Of course, a plane is X and Y, because that’s what we teach and it’s internalized, but it was an important development that these two fields were unified, and this process has just gone on throughout mathematics over and over again. Algebra and geometry were separated, and now we have this fluid, algebraic geometry that connects them, and over and over again, and that’s certainly the type of mathematics that I enjoy the most.
I think there’s sort of different styles to being a mathematician. I think hedgehogs and fox… A fox knows many things a little bit, but a hedgehog knows one thing very, very well, and in mathematics, there’s definitely both hedgehogs and foxes, and then there’s people who can play both roles, and I think ideal collaboration, British mathematicians involves very… You need some diversity, like a fox working with many hedgehogs or vice versa, but I identify mostly as a fox, certainly. I like arbitrage, somehow. Learning how one field works, learning the tricks of that wheel, and then going to another field which people don’t think is related, but I can adapt the tricks.
Lex Fridman
So see the connections between the fields.
So see the connections between the fields.
Terence Tao
Yeah. So there are other mathematicians who are far deeper than I am. They’re really hedgehogs. They know everything about one field, and they’re much faster and more effective in that field, but I can give them these extra tools.
Yeah. So there are other mathematicians who are far deeper than I am. They’re really hedgehogs. They know everything about one field, and they’re much faster and more effective in that field, but I can give them these extra tools.
Lex Fridman
I mean, you’ve said that you can be both a hedgehog and the fox, depending on the context, depending on the collaboration. So can you, if it’s at all possible, speak to the difference between those two ways of thinking about a problem? Say you’re encountering a new problem, searching for the connections versus very singular focus.
I mean, you’ve said that you can be both a hedgehog and the fox, depending on the context, depending on the collaboration. So can you, if it’s at all possible, speak to the difference between those two ways of thinking about a problem? Say you’re encountering a new problem, searching for the connections versus very singular focus.
Terence Tao
I’m much more comfortable with the fox paradigm. Yeah. So yeah, I like looking for analogies, narratives. I spend a lot of time… If there’s a result, I see it in one field, and I like the result, it’s a cool result, but I don’t like the proof, it uses types of mathematics that I’m not super familiar with, I often try to re-prove it myself using the tools that I favor.
I’m much more comfortable with the fox paradigm. Yeah. So yeah, I like looking for analogies, narratives. I spend a lot of time… If there’s a result, I see it in one field, and I like the result, it’s a cool result, but I don’t like the proof, it uses types of mathematics that I’m not super familiar with, I often try to re-prove it myself using the tools that I favor.
Often, my proof is worse, but by the exercise they’re doing, so I can say, “Oh, now I can see what the other proof was trying to do,” and from that, I can get some understanding of the tools that are used in that field. So it’s very exploratory, very… Doing crazy things in crazy fields and reinventing the wheel a lot, whereas the hedgehog style is, I think, much more scholarly. You’re very knowledge-based. You stay up to speed on all the developments in this field, you know all the history, you have a very good understanding of exactly the strengths and weaknesses of each particular technique. I think you rely a lot more on calculation than sort of trying to find narratives. So yeah, I can do that too, but other people are extremely good at that.
Lex Fridman
Let’s step back and maybe look at a bit of a romanticized version of mathematics. So I think you’ve said that early on in your life, math was more like a puzzle-solving activity when you were young. When did you first encounter a problem or proof where you realized math can have a kind of elegance and beauty to it?
Let’s step back and maybe look at a bit of a romanticized version of mathematics. So I think you’ve said that early on in your life, math was more like a puzzle-solving activity when you were young. When did you first encounter a problem or proof where you realized math can have a kind of elegance and beauty to it?
Terence Tao
That’s a good question. When I came to graduate school in Princeton, so John Conway was there at the time, he passed away a few years ago, but I remember one of the very first research talks I went to was a talk by Conway on what he called extreme proof.
That’s a good question. When I came to graduate school in Princeton, so John Conway was there at the time, he passed away a few years ago, but I remember one of the very first research talks I went to was a talk by Conway on what he called extreme proof.
So Conway just had this amazing way of thinking about all kinds of things in a way that you wouldn’t normally think of. So he thought proofs themselves as occupying some sort of space. So if you want to prove something, let’s say that there’s infinitely many primes, you have all different proofs, but you could rank them in different axes. Some proofs are elegant, some proofs are long, some proofs are elementary and so forth, and so there’s this cloud, so the space of all proofs itself has some sort of shape, and so he was interested in extreme points of this shape. Out of all these proofs, what is one of those, the shortest, at the expense of everything else, or the most elementary or whatever?
So he gave some examples of well-known theorems, and then he would give what he thought was the extreme proof in these different aspects. I just found that really eye-opening, that it’s not just getting a proof for a result that was interesting, but once you have that proof, trying to optimize it in various ways, that proofing itself had some craftsmanship to it.
It’s certainly informed my writing style, like when you do your math assignments and as you’re an undergraduate, your homework and so forth, you’re sort of encouraged to just write down any proof that works and hand it in, and as long as it gets a tick mark, you move on, but if you want your results to actually be influential and be read by people, it can’t just be correct. It should also be a pleasure to read, motivated, be adaptable to generalize to other things. It’s the same in many other disciplines, like coding. There’s a lot of analogies between math and coding. I like analogies, if you haven’t noticed. You can code something, spaghetti code, that works for a certain task, and it’s quick and dirty and it works, but there’s lots of good principles for writing code well so that other people can use it, build upon it so it has fewer bugs and whatever, and there’s similar things with mathematics.
Lex Fridman
Yeah, first of all, there’s so many beautiful things there, and [inaudible 00:59:42] is one of the great minds in mathematics ever, and computer science, just even considering the space of proofs and saying, “Okay, what does this space look like, and what are the extremes?”
Yeah, first of all, there’s so many beautiful things there, and [inaudible 00:59:42] is one of the great minds in mathematics ever, and computer science, just even considering the space of proofs and saying, “Okay, what does this space look like, and what are the extremes?”
Like you mentioned, coding as an analogy is interesting, because there’s also this activity called the code golf, which I also find beautiful and fun, where people use different programming languages to try to write the shortest possible program that accomplishes a particular task, and I believe there’s even competitions on this, and it’s also a nice way to stress test not just the programs, or in this case, the proofs, but also the different languages. Maybe that’s a different notation or whatever to use to accomplish a different task.
Terence Tao
Yeah, you learn a lot. I mean, it may seem like a frivolous exercise, but it can generate all these insights, which, if you didn’t have this artificial objective to pursue, you might not see…
Yeah, you learn a lot. I mean, it may seem like a frivolous exercise, but it can generate all these insights, which, if you didn’t have this artificial objective to pursue, you might not see…
Lex Fridman
What, to you, is the most beautiful or elegant equation in mathematics? I mean, one of the things that people often look to in beauty is the simplicity. So if you look at e=MC2… So when a few concepts come together, that’s why the Euler identity is often considered the most beautiful equation in mathematics. Do you find beauty in that one, in the Euler identity?
What, to you, is the most beautiful or elegant equation in mathematics? I mean, one of the things that people often look to in beauty is the simplicity. So if you look at e=MC2… So when a few concepts come together, that’s why the Euler identity is often considered the most beautiful equation in mathematics. Do you find beauty in that one, in the Euler identity?
Terence Tao
Yeah. Well, as I said, what I find most appealing is connections between different things that… So if you… Pi equals minus one. So yeah, people use all the fundamental constants. Okay. I mean, that’s cute, but to me…
Yeah. Well, as I said, what I find most appealing is connections between different things that… So if you… Pi equals minus one. So yeah, people use all the fundamental constants. Okay. I mean, that’s cute, but to me…
So the exponential function, which is by Euler, was to measure exponential growth. So compound interest or decay, anything which is continuously growing, continuously decreasing, growth and decay, or dilation or contraction, is modeled by the exponential function, whereas pi comes around from circles and rotation, right? If you want to rotate a needle, for example, a hundred degrees, you need rotate by pi radians, and i, complex numbers, represents the swapping imaginary axes of a 90 degree rotation. So a change in direction.
So the exponential function represents growth and decay in the direction that you already are. When you stick an i in the exponential, now instead of motion in the same direction as your current position, the motion as a right angles to your current position. So rotation, and then, so E to the pi i equals minus one tells you that if you rotate for a time pi, you end up at the other direction. So it unifies geometry through dilation and exponential growth or dynamics through this act of complexification, rotation by pi i. So it connects together all these two as mathematics, dynamics, geometry and complex numbers. They’re all considered almost… They were all next-door neighbors in mathematics because of this identity.
Lex Fridman
Do you think the thing you mentioned as Q, the collision of notations from these disparate fields, is just a frivolous side effect, or do you think there is legitimate value in when notation… Although our old friends come together in the night?
Do you think the thing you mentioned as Q, the collision of notations from these disparate fields, is just a frivolous side effect, or do you think there is legitimate value in when notation… Although our old friends come together in the night?
Terence Tao
Well, it’s confirmation that you have the right concepts. So when you first study anything, you have to measure things, and give them names, and initially sometimes, because your model is, again, too far off from reality, you give the wrong things the best names, and you only find out later what’s really important.
Well, it’s confirmation that you have the right concepts. So when you first study anything, you have to measure things, and give them names, and initially sometimes, because your model is, again, too far off from reality, you give the wrong things the best names, and you only find out later what’s really important.
Lex Fridman
Physicists can do this sometimes, but it turns out okay.
Physicists can do this sometimes, but it turns out okay.
Terence Tao
So actually, physics [inaudible 01:03:19] e=MC2. So one of the big things was the E, right? So when Aristotle first came up with his laws of motion, and then Galileo and Newton and so forth, they saw the things they could measure, they could measure mass and acceleration and force and so forth, and so Newtonian mechanics, for example, F=ma, was the famous Newton’s second law of motion. So those were the primary objects. So they gave them the central billing in the theory.
So actually, physics [inaudible 01:03:19] e=MC2. So one of the big things was the E, right? So when Aristotle first came up with his laws of motion, and then Galileo and Newton and so forth, they saw the things they could measure, they could measure mass and acceleration and force and so forth, and so Newtonian mechanics, for example, F=ma, was the famous Newton’s second law of motion. So those were the primary objects. So they gave them the central billing in the theory.
It was only later after people started analyzing these equations that there always seemed to be these quantities that were conserved. So in particular, momentum and energy, and it’s not obvious that things have an energy. It’s not something you can directly measure the same way you can measure mass and velocity, so both, but over time, people realized that this was actually a really fundamental concept.
Hamilton, eventually in the 19th century, reformulated Newton’s laws of physics into what’s called Hamiltonian mechanics, where the energy, which is now called the Hamiltonian, was the dominant object. Once you know how to measure the Hamiltonian of any system, you can describe completely the dynamics like what happens to all the states. It really was a central actor, which was not obvious initially, and this change of perspective really helped when quantum mechanics came along, because the early physicists who studied quantum mechanics, they had a lot of trouble trying to adapt their Newtonian thinking, because everything was a particle and so forth, to quantum mechanics, because everything was a wave, but it just looked really, really weird.
You ask, “What is the quantum version of F=ma?”, and it’s really, really hard to give an answer to that, but it turns out that the Hamiltonian, which was so secretly behind the scenes in classical mechanics, also is the key object in quantum mechanics, that there’s also an object called a Hamiltonian. It’s a different type of object. It’s what’s called an operator rather than a function, but again, once you specify it, you specify the entire dynamics.
So there’s something called Schrodinger’s equation that tells you exactly how quantum systems evolve once you have a Hamiltonian. So side by side, they look completely different objects. One involves particles, one involves waves and so forth, but with this centrality, you could start actually transferring a lot of intuition and facts from classical mechanics to quantum mechanics. So for example, in classical mechanics, there’s this thing called Noether’s theorem. Every time there’s a symmetry in a physical system, there was a conservation law. So the laws of physics are translation invariant. Like if I move 10 steps to the left, I experience the same laws of physics as if I was here, and that corresponds to conservation momentum. If I turn around by some angle, again, I experience the same laws of physics. This corresponds to the conservation of angular momentum. If I wait for 10 minutes, I still have the same laws of physics.
Terence Tao
It If I wait for 10 minutes, I still have the same laws of physics. So there’s time transition invariance. This corresponds to the law of the conservation of energy. So there’s this fundamental connection between symmetry and conservation. And that’s also true in quantum mechanics, even though the equations are completely different, but because they’re both coming from the Hamiltonian, the Hamiltonian controls everything, every time the Hamiltonian has a symmetry, the equations will have a conservation wall. Once you have the right language, it actually makes things a lot cleaner.
It If I wait for 10 minutes, I still have the same laws of physics. So there’s time transition invariance. This corresponds to the law of the conservation of energy. So there’s this fundamental connection between symmetry and conservation. And that’s also true in quantum mechanics, even though the equations are completely different, but because they’re both coming from the Hamiltonian, the Hamiltonian controls everything, every time the Hamiltonian has a symmetry, the equations will have a conservation wall. Once you have the right language, it actually makes things a lot cleaner.
One of the problems why we can’t unify quantum mechanics and general relativity, yet we haven’t figured out what the fundamental objects are. For example, we have to give up the notion of space and time being these almost Euclidean-type spaces, and it has to be, we know that at very tiny scales there’s going to be quantum fluctuations. There’s space-time foam and trying to use Cartesian coordinates X, Y, Z. It’s a non-starter, but we don’t know what to replace it with. We don’t actually have the concepts, the analog Hamiltonian that sort of organized everything.
Theory of everything
Lex Fridman
Does your gut say that there is a theory of everything, so this is even possible to unify, to find this language that unifies general relativity and quantum mechanics?
Does your gut say that there is a theory of everything, so this is even possible to unify, to find this language that unifies general relativity and quantum mechanics?
Terence Tao
I believe so. The history of physics has been out of unification much like mathematics over the years. [inaudible 01:07:26] magnetism was separate theories and then Maxwell unified them. Newton unified the motions of heavens for the motions of objects on the Earth and so forth. So it should happen. It’s just that, again, to go back to this model of the observations and theory, part of our problem is that physics is a victim of it’s own success. That our two big theories of physics, general relativity and quantum mechanics are so good now is that together they cover 99.9% of all the observations we can make. And you have to either go to extremely insane particle accelerations or the early universe or things that are really hard to measure in order to get any deviation from either of these two theories to the point where you can actually figure out how to combine together. But I have faith that we’ve been doing this for centuries and we’ve made progress before. There’s no reason why we should stop.
I believe so. The history of physics has been out of unification much like mathematics over the years. [inaudible 01:07:26] magnetism was separate theories and then Maxwell unified them. Newton unified the motions of heavens for the motions of objects on the Earth and so forth. So it should happen. It’s just that, again, to go back to this model of the observations and theory, part of our problem is that physics is a victim of it’s own success. That our two big theories of physics, general relativity and quantum mechanics are so good now is that together they cover 99.9% of all the observations we can make. And you have to either go to extremely insane particle accelerations or the early universe or things that are really hard to measure in order to get any deviation from either of these two theories to the point where you can actually figure out how to combine together. But I have faith that we’ve been doing this for centuries and we’ve made progress before. There’s no reason why we should stop.
Lex Fridman
Do you think you’ll be a mathematician that develops a theory of everything?
Do you think you’ll be a mathematician that develops a theory of everything?
Terence Tao
What often happens is that when the physicists need some theory of mathematics, there’s often some precursor that the mathematicians worked out earlier. So when Einstein started realizing that space was curved, he went to some mathematician and asked, “Is there some theory of curved space that mathematicians already came up with that could be useful?” And he said, “Oh yeah, I think Riemann came up with something.” And so yeah, Riemann had developed Riemannian geometry, which is precisely a theory of spaces that are curved in various general ways, which turned out to be almost exactly what was needed by Einstein’s theory. This is going back to weakness and unreasonable effectiveness of mathematics. I think the theories that work well, that explain the universe, tend to also involve the same mathematical objects that work well to solve mathematical problems. Ultimately, they’re just both ways of organizing data in useful ways.
What often happens is that when the physicists need some theory of mathematics, there’s often some precursor that the mathematicians worked out earlier. So when Einstein started realizing that space was curved, he went to some mathematician and asked, “Is there some theory of curved space that mathematicians already came up with that could be useful?” And he said, “Oh yeah, I think Riemann came up with something.” And so yeah, Riemann had developed Riemannian geometry, which is precisely a theory of spaces that are curved in various general ways, which turned out to be almost exactly what was needed by Einstein’s theory. This is going back to weakness and unreasonable effectiveness of mathematics. I think the theories that work well, that explain the universe, tend to also involve the same mathematical objects that work well to solve mathematical problems. Ultimately, they’re just both ways of organizing data in useful ways.
Lex Fridman
It just feels like you might need to go some weird land that’s very hard to intuit. You have string T=theory.
It just feels like you might need to go some weird land that’s very hard to intuit. You have string T=theory.
Terence Tao
Yeah, that was a leading candidate for many decades. I think it’s slowly pulling out of fashion. It’s not matching experiment.
Yeah, that was a leading candidate for many decades. I think it’s slowly pulling out of fashion. It’s not matching experiment.
Lex Fridman
So one of the big challenges of course, like you said, is experiment is very tough because of how effective both theories are. But the other is just you’re talking about you’re not just deviating from space-time. You’re going into some crazy number of dimensions. You’re doing all kinds of weird stuff that to us, we’ve gone so far from this flat earth that we started at, like you mentioned, and now it’s very hard to use our limited ape descendants of a cognition to intuit what that reality really is.
So one of the big challenges of course, like you said, is experiment is very tough because of how effective both theories are. But the other is just you’re talking about you’re not just deviating from space-time. You’re going into some crazy number of dimensions. You’re doing all kinds of weird stuff that to us, we’ve gone so far from this flat earth that we started at, like you mentioned, and now it’s very hard to use our limited ape descendants of a cognition to intuit what that reality really is.
Terence Tao
This is why analogies are so important. So yeah, the round earth is not intuitive because we’re stuck on it. But round objects in general, we have pretty good intuition over and we have interest about light works and so forth. And it’s actually a good exercise to actually work out how eclipses and phases of the sun and the moon and so forth can be really easily explained by round earth and round moon and models. And you can just take a basketball and a golf ball and a light source and actually do these things yourself. So the intuition is there, but you have to transfer it.
This is why analogies are so important. So yeah, the round earth is not intuitive because we’re stuck on it. But round objects in general, we have pretty good intuition over and we have interest about light works and so forth. And it’s actually a good exercise to actually work out how eclipses and phases of the sun and the moon and so forth can be really easily explained by round earth and round moon and models. And you can just take a basketball and a golf ball and a light source and actually do these things yourself. So the intuition is there, but you have to transfer it.
Lex Fridman
That is a big leap intellectually for us to go from flat to round earth because our life is mostly lived in flat land. To load that information and we’re all like, take it for granted. We take so many things for granted because science has established a lot of evidence for this kind of thing, but we’re on a round rock flying through space. Yeah, that’s a big leap. And you have to take a chain of those leaps. The more and more and more we progress,
That is a big leap intellectually for us to go from flat to round earth because our life is mostly lived in flat land. To load that information and we’re all like, take it for granted. We take so many things for granted because science has established a lot of evidence for this kind of thing, but we’re on a round rock flying through space. Yeah, that’s a big leap. And you have to take a chain of those leaps. The more and more and more we progress,
Terence Tao
Right, yeah. So modern science is maybe, again, a victim of own success is that in order to be more accurate, it has to move further and further away from your initial intuition. And so for someone who hasn’t gone through the whole process of science education, it looks more suspicious because of that. So we need more grounding. There are scientists who do excellent outreach, but there’s lots of science things that you can do at home. Lots of YouTube videos I did at YouTube video recently, Grant Sanderson, we talked about this earlier, that how the ancient Greeks were able to measure things like the distance of the moon, distance the earth, and using techniques that you could also replicate yourself. It doesn’t all have to be fancy space telescopes and very intimidating mathematics.
Right, yeah. So modern science is maybe, again, a victim of own success is that in order to be more accurate, it has to move further and further away from your initial intuition. And so for someone who hasn’t gone through the whole process of science education, it looks more suspicious because of that. So we need more grounding. There are scientists who do excellent outreach, but there’s lots of science things that you can do at home. Lots of YouTube videos I did at YouTube video recently, Grant Sanderson, we talked about this earlier, that how the ancient Greeks were able to measure things like the distance of the moon, distance the earth, and using techniques that you could also replicate yourself. It doesn’t all have to be fancy space telescopes and very intimidating mathematics.
Lex Fridman
Yeah, I highly recommend that. I believe you give a lecture and you also did an incredible video with Grant. It’s a beautiful experience to try to put yourself in the mind of a person from that time shrouded in mystery. You’re on this planet, you don’t know the shape of it, the size of it. You see some stars, you see some things and you try to localize yourself in this world and try to make some kind of general statements about distanced places.
Yeah, I highly recommend that. I believe you give a lecture and you also did an incredible video with Grant. It’s a beautiful experience to try to put yourself in the mind of a person from that time shrouded in mystery. You’re on this planet, you don’t know the shape of it, the size of it. You see some stars, you see some things and you try to localize yourself in this world and try to make some kind of general statements about distanced places.
Terence Tao
Change of perspective is really important. You say travel broadens the mind, this is intellectual travel. Put yourself in the mind of the ancient Greeks or person some other time period, make hypotheses, spherical [inaudible 01:12:41], whatever, speculate. And this is what mathematicians do and some other, what artists do actually.
Change of perspective is really important. You say travel broadens the mind, this is intellectual travel. Put yourself in the mind of the ancient Greeks or person some other time period, make hypotheses, spherical [inaudible 01:12:41], whatever, speculate. And this is what mathematicians do and some other, what artists do actually.
Lex Fridman
It’s just incredible that given the extreme constraints, you could still say very powerful things. That’s why it’s inspiring. Looking back in history, how much can be figured out when you don’t have much to figure out stuff with.
It’s just incredible that given the extreme constraints, you could still say very powerful things. That’s why it’s inspiring. Looking back in history, how much can be figured out when you don’t have much to figure out stuff with.
Terence Tao
If you propose axioms, then the mathematics does. You follow those axioms to their conclusions and sometimes you can get quite a long way from initial hypotheses.
If you propose axioms, then the mathematics does. You follow those axioms to their conclusions and sometimes you can get quite a long way from initial hypotheses.
General relativity
Lex Fridman
If we can stay in the land of the weird. You mentioned general relativity. You’ve contributed to the mathematical understanding, Einstein’s field equations. Can you explain this work and from a mathematical standpoint, what aspects of general relativity are intriguing to you? Challenging to you?
If we can stay in the land of the weird. You mentioned general relativity. You’ve contributed to the mathematical understanding, Einstein’s field equations. Can you explain this work and from a mathematical standpoint, what aspects of general relativity are intriguing to you? Challenging to you?
Terence Tao
I have worked on some equations. There’s something called the wave maps equation or the Sigma field model, which is not quite the equation of space-time gravity itself, but of certain fields that might exist on top of space-time. So Einstein’s equations of relativity just describe space and time itself. But then there’s other fields that live on top of that. There’s the electromagnetic field, there’s things called Yang-Mills fields, and there’s this whole hierarchy of different equations of which Einstein’s considered one of the most nonlinear and difficult, but relatively low on the hierarchy was this thing called the wave maps equation. So it’s a wave which at any given point is fixed to be on a sphere. So I can think of a bunch of arrows in space and time. Yeah, so it’s pointing in different directions, but they propagate like waves. If you wiggle an arrow, it would propagate and make all the arrows move kind of like sheaves of wheat in a wheat field.
I have worked on some equations. There’s something called the wave maps equation or the Sigma field model, which is not quite the equation of space-time gravity itself, but of certain fields that might exist on top of space-time. So Einstein’s equations of relativity just describe space and time itself. But then there’s other fields that live on top of that. There’s the electromagnetic field, there’s things called Yang-Mills fields, and there’s this whole hierarchy of different equations of which Einstein’s considered one of the most nonlinear and difficult, but relatively low on the hierarchy was this thing called the wave maps equation. So it’s a wave which at any given point is fixed to be on a sphere. So I can think of a bunch of arrows in space and time. Yeah, so it’s pointing in different directions, but they propagate like waves. If you wiggle an arrow, it would propagate and make all the arrows move kind of like sheaves of wheat in a wheat field.
And I was interested in the global regularity problem. Again for this question, is it possible for the energy here to collect at a point? So the equation I considered was actually what’s called a critical equation where it’s actually the behavior at all scales is roughly the same. And I was able barely to show that you couldn’t actually force a scenario where all the energy concentrated at one point, that the energy had to disperse a little bit at the moment, just a little bit. It would stay regular. Yeah, this was back in 2000. That was part of why I got interested in [inaudible 01:14:58] afterwards actually. So I developed some techniques to solve that problem. So part of it, this problem is really nonlinear because of the curvature of the sphere. There was a certain nonlinear effect, which was a non-perturbative effect. It was when you sort looked at it normally it looked larger than the linear effects of the wave equation. And so it was hard to keep things under control even when your energy was small.
But I developed what’s called a gauge transformation. So the equation is kind of like an evolution of sheaves of wheat, and they’re all bending back and forth, so there’s a lot of motion. But if you imagine stabilizing the flow by attaching little cameras at different points in space, which are trying to move in a way that captures most of the motion, and under this stabilized flow, the flow becomes a lot more linear. I discovered a way to transform the equation to reduce the amount of nonlinear effects, and then I was able to solve the equation. I found the transformation while visiting my aunt in Australia, and I was trying to understand the dynamics of all these fields, and I couldn’t do a pen and paper, and I had not enough facility of computers to do any computer simulations.
So I ended up closing my eyes being on the floor and just imagining myself to actually be this vector field and rolling around to try to see how to change coordinates in such a way that somehow things in all directions would behave in a reasonably linear fashion. And yeah, my aunt walked in on me while I was doing that and she was asking, “Why am I doing this?”
Lex Fridman
It’s complicated as the answer.
It’s complicated as the answer.
Terence Tao
“Yeah, yeah. And okay, fine. You are a young man. I don’t ask questions.”
“Yeah, yeah. And okay, fine. You are a young man. I don’t ask questions.”
Solving difficult problems
Lex Fridman
I have to ask about how do you approach solving difficult problems if it’s possible to go inside your mind when you’re thinking, are you visualizing in your mind the mathematical objects, symbols, maybe what are you visualizing in your mind? Usually when you’re thinking?
I have to ask about how do you approach solving difficult problems if it’s possible to go inside your mind when you’re thinking, are you visualizing in your mind the mathematical objects, symbols, maybe what are you visualizing in your mind? Usually when you’re thinking?
Terence Tao
A lot of pen and paper. One thing you pick up as a mathematician is I call it cheating strategically. So the beauty of mathematics is that you get to change the problem and change the rules as you wish. You don’t get to do this by any other field. If you’re an engineer and someone says, “Build a bridge over this river,” you can’t say, “I want to build this bridge over here instead,” or, “I want to put it out of paper instead of steel,” but a mathematician, you can do whatever you want on. It’s like trying to solve a computer game where there’s unlimited cheat codes available. And so you can set this, there’s a dimension that’s large. I’ve set it to one. I’ll solve the one-dimensional problem first. So there’s a main term and an error term. I’m going to make a spherical call assumption [inaudible 01:17:45] term is zero.
A lot of pen and paper. One thing you pick up as a mathematician is I call it cheating strategically. So the beauty of mathematics is that you get to change the problem and change the rules as you wish. You don’t get to do this by any other field. If you’re an engineer and someone says, “Build a bridge over this river,” you can’t say, “I want to build this bridge over here instead,” or, “I want to put it out of paper instead of steel,” but a mathematician, you can do whatever you want on. It’s like trying to solve a computer game where there’s unlimited cheat codes available. And so you can set this, there’s a dimension that’s large. I’ve set it to one. I’ll solve the one-dimensional problem first. So there’s a main term and an error term. I’m going to make a spherical call assumption [inaudible 01:17:45] term is zero.
And so the way you should solve these problems is not in this Iron Man mode where you make things maximally difficult, but actually the way you should approach any reasonable math problem is that if there are 10 things that are making your life difficult, find a version of the problem that turns off nine of the difficulties, but only keeps one of them and solve that. And then so you solve nine cheats. Okay, you solve 10 cheats, then the game is trivial, but you solve nine cheats. You solve one problem that teaches you how to deal with that particular difficulty. And then you turn that one-off and you turn someone else something else on, and then you solve that one. And after you know how to solve the 10 problems, 10 difficulties separately, then you have to start merging them a few at a time.
As a kid, I watched a lot of these Hong Kong action movies from our culture, and one thing is that every time it’s a fight scene, so maybe the hero gets swarmed by a hundred bad-guy goons or whatever, but it’ll always be choreographed so that he’d always be only fighting one person at a time and it would defeat that person and move on. And because of that, he could defeat all of them. But whereas if they had fought a bit more intelligently and just swarmed the guy at once, it would make for much worse cinema, but they would win.
Lex Fridman
Are you usually pen and paper? Are you working with computer and LaTeX?
Are you usually pen and paper? Are you working with computer and LaTeX?
Terence Tao
Mostly pen and paper actually. So in my office I have four giant blackboards and sometimes I just have to write everything I know about the problem on the four blackboards and then sit my couch and just see the whole thing.
Mostly pen and paper actually. So in my office I have four giant blackboards and sometimes I just have to write everything I know about the problem on the four blackboards and then sit my couch and just see the whole thing.
Lex Fridman
Is it all symbols like notation or is there some drawings?
Is it all symbols like notation or is there some drawings?
Terence Tao
Oh, there’s a lot of drawing and a lot of bespoke doodles that only makes sense to me. And the beauty of a blackboard is you erase and it’s a very organic thing. I’m beginning to use more and more computers, partly because AI makes it much easier to do simple coding things that if I wanted to plot a function before, which is moderately complicated, has some iteration or something, I’d had to remember how to set up a Python program and how does a full loop work and debug it and it would take two hours and so forth. And now I can do it in 10, 15 minutes as much. I’m using more and more computers to do simple explorations.
Oh, there’s a lot of drawing and a lot of bespoke doodles that only makes sense to me. And the beauty of a blackboard is you erase and it’s a very organic thing. I’m beginning to use more and more computers, partly because AI makes it much easier to do simple coding things that if I wanted to plot a function before, which is moderately complicated, has some iteration or something, I’d had to remember how to set up a Python program and how does a full loop work and debug it and it would take two hours and so forth. And now I can do it in 10, 15 minutes as much. I’m using more and more computers to do simple explorations.
AI-assisted theorem proving
Lex Fridman
Let’s talk about AI a little bit if we could. So maybe a good entry point is just talking about computer-assisted proofs in general. Can you describe the Lean formal proof programming language and how it can help as a proof assistant and maybe how you started using it and how it has helped you?
Let’s talk about AI a little bit if we could. So maybe a good entry point is just talking about computer-assisted proofs in general. Can you describe the Lean formal proof programming language and how it can help as a proof assistant and maybe how you started using it and how it has helped you?
Terence Tao
So Lean is a computer language, much like standard languages like Python and C and so forth, except that in most languages the focus is on using executable code. Lines of code do things, they flip bits or they make a robot move or they deliver your text on the internet or something. So lean is a language that can also do that. It can also be run as a standard traditional language, but it can also produce certificates. So a software language like Python might do a computation and give you that the answer is seven. Okay, does the sum of three plus four equal to seven?
So Lean is a computer language, much like standard languages like Python and C and so forth, except that in most languages the focus is on using executable code. Lines of code do things, they flip bits or they make a robot move or they deliver your text on the internet or something. So lean is a language that can also do that. It can also be run as a standard traditional language, but it can also produce certificates. So a software language like Python might do a computation and give you that the answer is seven. Okay, does the sum of three plus four equal to seven?
But Lean can produce not just the answer, but a proof that how it got the answer of seven as three plus four and all the steps involved. So it creates these more complicated objects, not just statements, but statements with proofs attached to them. And every line of code is just a way of piecing together previous statements to create new ones. So the idea is not new. These things are called proof assistance, and so they provide languages for which you can create quite complicated mathematical proofs. They produce these certificates that give a 100% guarantee that your arguments are correct if you trust the compiler of Lean, but they made the compiler really small and there are several different compilers available for the Lean.
Lex Fridman
Can you give people some intuition about the difference between writing on pen and paper versus using Lean programming language? How hard is it to formalize statement?
Can you give people some intuition about the difference between writing on pen and paper versus using Lean programming language? How hard is it to formalize statement?
Terence Tao
So Lean, a lot of mathematicians were involved in the design of Lean. So it’s designed so that individual lines of code resemble individual lines of mathematical argument. You might want to introduce a variable, you want to prove our contradiction. There are various standard things that you can do and it’s written. So ideally should like a one-to-one correspondence. In practice, it isn’t because Lean is explaining a proof to extremely pedantic colleague who will point out, “Okay, did you really mean this? What happens if this is zero? Okay, how do you justify this?” So Lean has a lot of automation in it to try to be less annoying. So for example, every mathematical object has to come with a type. If I talk about X, is X a rule number or a natural number or a function or something? If you write things informally, it’s often if you have context. You say, “Clearly X is equal to let X be the sum of Y and Z and Y and Z were already rule number, so X should also be a rule number.” So Lean can do a lot of that, but every so often it says, wait a minute, can you tell me more about what this object is? What type of object it is? You have to think more at a philosophical level, not just computations that you’re doing, but what each object actually is in some sense.
So Lean, a lot of mathematicians were involved in the design of Lean. So it’s designed so that individual lines of code resemble individual lines of mathematical argument. You might want to introduce a variable, you want to prove our contradiction. There are various standard things that you can do and it’s written. So ideally should like a one-to-one correspondence. In practice, it isn’t because Lean is explaining a proof to extremely pedantic colleague who will point out, “Okay, did you really mean this? What happens if this is zero? Okay, how do you justify this?” So Lean has a lot of automation in it to try to be less annoying. So for example, every mathematical object has to come with a type. If I talk about X, is X a rule number or a natural number or a function or something? If you write things informally, it’s often if you have context. You say, “Clearly X is equal to let X be the sum of Y and Z and Y and Z were already rule number, so X should also be a rule number.” So Lean can do a lot of that, but every so often it says, wait a minute, can you tell me more about what this object is? What type of object it is? You have to think more at a philosophical level, not just computations that you’re doing, but what each object actually is in some sense.
Lex Fridman
Is he using something like LLMs to do the type inference or you match with the real number?
Is he using something like LLMs to do the type inference or you match with the real number?
Terence Tao
It’s using much more traditional what’s called good old-fashioned AI. You can represent all these things as trees, and there’s always algorithm to match one tree to another tree.
It’s using much more traditional what’s called good old-fashioned AI. You can represent all these things as trees, and there’s always algorithm to match one tree to another tree.
Lex Fridman
So it’s actually doable to figure out if something is a real number or a natural number.
So it’s actually doable to figure out if something is a real number or a natural number.
Terence Tao
Every object comes with a history of where it came from, and you can kind of trace it.
Every object comes with a history of where it came from, and you can kind of trace it.
Lex Fridman
Oh, I see.
Oh, I see.
Terence Tao
Yeah. So it’s designed for reliability. So modern AIs are not used in, it’s a disjoint technology. People are begin to use AIs on top of lean. So when a mathematician tries to program proven in lean, often there’s a step. Okay, now I want to use the fundamental thing on calculus, say to do the next step. So the lean developers have built this massive project called Mathlib, a collection of tens of thousands of useful facts about methodical objects.
Yeah. So it’s designed for reliability. So modern AIs are not used in, it’s a disjoint technology. People are begin to use AIs on top of lean. So when a mathematician tries to program proven in lean, often there’s a step. Okay, now I want to use the fundamental thing on calculus, say to do the next step. So the lean developers have built this massive project called Mathlib, a collection of tens of thousands of useful facts about methodical objects.
And somewhere in there is the fundamental calculus, but you need to find it. So a lot of the bottleneck now is actually lemma search. There’s a tool that you know is in there somewhere and you need to find it. And so there are various search engine engines specialized for Mathlib that you can do, but there’s now these large language models that you can say, “I need the fundamental calculus at this point.” And it was like, okay, for example, when I code, I have GitHub Copilot installed as a plugin to my IDE, and it scans my text and it sees what I need. Says I might even type, now I need to use the fundamental calculus. And then it might suggest, “Okay, try this,” and maybe 25% of the time it works exactly. And then another ten-fifty percent of the time it doesn’t quite work, but it’s close enough that I can say, oh yeah, if I just change it here and here, it’ll work. And then half the time it gives me complete rubbish. But people are beginning to use AIs a little bit on top, mostly on the level of basically fancy auto-complete that you can type half of one line of a proof and it will find, it’ll tell you.
Lex Fridman
Yeah, but a fancy, especially fancy with the sort of capital letter F, remove some of the friction mathematician might feel when they move from pen and paper to formalizing.
Yeah, but a fancy, especially fancy with the sort of capital letter F, remove some of the friction mathematician might feel when they move from pen and paper to formalizing.
Terence Tao
Yes. Yeah. So right now I estimate that the time and effort taken to formalize it, proof is about 10 times the amount taken to write it out. So it’s doable, but it’s annoying.
Yes. Yeah. So right now I estimate that the time and effort taken to formalize it, proof is about 10 times the amount taken to write it out. So it’s doable, but it’s annoying.
Lex Fridman
But doesn’t it kill the whole vibe of being a mathematician? Having a pedantic coworker?
But doesn’t it kill the whole vibe of being a mathematician? Having a pedantic coworker?
Terence Tao
Right? Yeah, if that was the only aspect of it, but there’s some cases was actually more pleasant to do things formally. So there’s a theorem I formalized, and there was a certain constant 12 that came out in the final statement. And so this 12 had been carried all through the proof and everything had to be checked all these other numbers that had to be consistent with this final number 12. And so we wrote a paper through this theorem with this number 12. And then a few weeks later someone said, “Oh, we can actually improve this 12 to an 11 by reworking some of these steps.” And when this happens with pen and paper, every time you change your parameter, you have to check line by line that every single line of your proof still works. And there can be subtle things that you didn’t quite realize, some properties, not number 12, that you didn’t even realize that you were taking advantage of. So a proof can break down at a subtle place.
Right? Yeah, if that was the only aspect of it, but there’s some cases was actually more pleasant to do things formally. So there’s a theorem I formalized, and there was a certain constant 12 that came out in the final statement. And so this 12 had been carried all through the proof and everything had to be checked all these other numbers that had to be consistent with this final number 12. And so we wrote a paper through this theorem with this number 12. And then a few weeks later someone said, “Oh, we can actually improve this 12 to an 11 by reworking some of these steps.” And when this happens with pen and paper, every time you change your parameter, you have to check line by line that every single line of your proof still works. And there can be subtle things that you didn’t quite realize, some properties, not number 12, that you didn’t even realize that you were taking advantage of. So a proof can break down at a subtle place.
So we had formalized the proof with this constant 12, and then when this new paper came out, we said, “Oh,” so that took three weeks to formalize and 20 people to formalize this original proof. I said, “Now let’s update the proof to 11.” And what you can do with Lean is in your headline theorem, you change your 12 to 11, you run the compiler and off the thousands of lines of code, you have 90% of them still work and there’s a couple that are lined in red. Now, I can’t justify these steps, but immediately isolates which steps you need to change, but you can skip over everything, which works just fine.
And if you program things correctly with good programming practices, most of your lines will not be red. And there’ll just be a few places where you, if you don’t hard code your constants, but you use smart tactics and so forth, you can localize the things you need to change to a very small period of time. So within a day or two, we had updated our proof because it’s this very quick process, you make a change. There are 10 things now that don’t work. For each one, you make a change and now there’s five more things that don’t work, but the process converges much more smoothly then with pen and paper.
Lex Fridman
So that’s for writing? Are you able to read it? If somebody else has a proof, are you able to, what’s the versus paper and?
So that’s for writing? Are you able to read it? If somebody else has a proof, are you able to, what’s the versus paper and?
Terence Tao
Yeah, so the proofs are longer, but each individual piece is easier to read. So if you take a math paper and you jump to page 27 and you look at paragraph six and you have a line of text of math, I often can’t read it immediately because it assumes various definitions, which I have to go back and maybe on 10 pages earlier this was defined and the proof is scattered all over the place, and you basically are forced to read fairly sequentially. It’s not like say a novel where in a theory you could open up a novel halfway through and start reading. There’s a lot of context. But when [inaudible 01:28:23] Lean, if you put your cursor on a line code, every single object there, you can hover over it and it would say what it is, where it came from, where stuff is justified. You can trace things back much easier than flipping through a math paper.
Yeah, so the proofs are longer, but each individual piece is easier to read. So if you take a math paper and you jump to page 27 and you look at paragraph six and you have a line of text of math, I often can’t read it immediately because it assumes various definitions, which I have to go back and maybe on 10 pages earlier this was defined and the proof is scattered all over the place, and you basically are forced to read fairly sequentially. It’s not like say a novel where in a theory you could open up a novel halfway through and start reading. There’s a lot of context. But when [inaudible 01:28:23] Lean, if you put your cursor on a line code, every single object there, you can hover over it and it would say what it is, where it came from, where stuff is justified. You can trace things back much easier than flipping through a math paper.
So one thing that Lean really enables is actually collaborating on proofs at a really atomic scale that you really couldn’t do in the past. So traditionally with pen and paper, when you want to collaborate with another mathematician, either you do it at a blackboard where you can really interact, but if you’re doing it sort of by email or something, basically, yeah, you have to segment it. Say, “I’m going to finish section three, you do section four,” but you can’t really work on the same thing, collaborate at the same time.
But with Lean, you can be trying to formalize some portion of proof and say, “I got stuck at line 67 here. I need to prove this thing, but it doesn’t quite work. Here’s the three lines of code I’m having trouble with.” But because all the context is there, someone else can say, “Oh, okay, I recognize what you need to do. You need to apply this trick or this tool,” and you can do extremely atomic-level conversations. So because of Lean, I can collaborate with dozens of people across the world, most of who I have never met in person, and I may not know actually even whether they’re how reliable they are in the proof-taking field, but Lean gives me a certificate of trust so I can do trustless mathematics.
Lex Fridman
So there’s so many interesting questions there. So one, you’re known for being a great collaborator. So what is the right way to approach solving a difficult problem in mathematics when you’re collaborating? Are you doing a divide and conquer type of thing? Or are you focused in on a particular part and you’re brainstorming?
So there’s so many interesting questions there. So one, you’re known for being a great collaborator. So what is the right way to approach solving a difficult problem in mathematics when you’re collaborating? Are you doing a divide and conquer type of thing? Or are you focused in on a particular part and you’re brainstorming?
Terence Tao
There’s always a brainstorming process first. Yeah, so math research projects, by their nature, when you start, you don’t really know how to do the problem. It’s not like an engineering project where somehow the theory has been established for decades and it’s implementation is the main difficulty. You have to figure out even what is the right path. So this is what I said about cheating first. It’s like to go back to the bridge building analogy. So first assume you have infinite budget and unlimited amounts of workforce and so forth. Now can you build this bridge? Okay, now have infinite budget, but only finite workforce, right? Now can you do that? And so forth. So, of course no engineer can actually do this. Like I say, they have fixed requirements. Yes, there’s this sort of jam sessions always at the beginning where you try all kinds of crazy things and you make all these assumptions that are unrealistic, but you plan to fix later.
There’s always a brainstorming process first. Yeah, so math research projects, by their nature, when you start, you don’t really know how to do the problem. It’s not like an engineering project where somehow the theory has been established for decades and it’s implementation is the main difficulty. You have to figure out even what is the right path. So this is what I said about cheating first. It’s like to go back to the bridge building analogy. So first assume you have infinite budget and unlimited amounts of workforce and so forth. Now can you build this bridge? Okay, now have infinite budget, but only finite workforce, right? Now can you do that? And so forth. So, of course no engineer can actually do this. Like I say, they have fixed requirements. Yes, there’s this sort of jam sessions always at the beginning where you try all kinds of crazy things and you make all these assumptions that are unrealistic, but you plan to fix later.
And you try to see if there’s even some skeleton of an approach that might work. And then hopefully that breaks up the problem into smaller sub problems, which you don’t know how to do. But then you focus on the sub ones. And sometimes different collaborators are better at working on certain things. So one of my themes I’m known for is a theme of Ben Green, which now called the Green-Tao theorem. It’s a statement that the primes contain mathematic progressions of an event. So it was a modification of his [inaudible 01:31:26] already. And the way we collaborated was that Ben had already proven a similar result for progressions of length three. He showed that such like the primes contain loss and loss of progressions of length three, even subsets of the primes, certain subsets do, but his techniques only worked for the three progressions. They didn’t work for longer.
But I had these techniques coming from a [inaudible 01:31:48] theory, which is something that I had been playing with and I knew better than Ben at the time. And so if I could justify certain randomness properties of some set relating for primes, there’s a certain technical condition, which if I could have it, if Ben could supply me to this fact, I could conclude the theorem. But what I asked was a really difficult question in number theory, which he said, “There’s no way we can prove this.” So he said, “Can you prove your part of the theorem using a weak hypothesis that I have a chance to prove it?” And he proposed something which he could prove, but it was too weak for me. I can’t use this. So there was this conversation going back and forth, a hacker-
Lex Fridman
Different cheats to-
Different cheats to-
Terence Tao
Yeah, yeah, I want to cheat more. He wants to cheat less, but eventually we found a property which A, he could prove, and B, I could use, and then we could prove our theorem. So there are all kinds of dynamics. Every collaboration has some story. No two are the same.
Yeah, yeah, I want to cheat more. He wants to cheat less, but eventually we found a property which A, he could prove, and B, I could use, and then we could prove our theorem. So there are all kinds of dynamics. Every collaboration has some story. No two are the same.
Lean programming language
Lex Fridman
And then on the flip side of that, like you mentioned with Lean programming, now that’s almost like a different story because you can create, I think you’ve mentioned a blueprint for a problem, and then you can really do a divide and conquer with Lean where you’re working on separate parts and they’re using the computer system proof checker essentially to make sure that everything is correct along the way.
And then on the flip side of that, like you mentioned with Lean programming, now that’s almost like a different story because you can create, I think you’ve mentioned a blueprint for a problem, and then you can really do a divide and conquer with Lean where you’re working on separate parts and they’re using the computer system proof checker essentially to make sure that everything is correct along the way.
Terence Tao
So it makes everything compatible and trustable. Yeah, so currently only a few mathematical projects can be cut up in this way. At the current state of the art, most of the Lean activity is on formalizing proofs that have already been proven by humans. A math paper basically is a blueprint in a sense. It is taking a difficult statement like big theorem and breaking up into me a hundred little lemmas, but often not all written with enough detail that each one can be sort of directly formalized.
So it makes everything compatible and trustable. Yeah, so currently only a few mathematical projects can be cut up in this way. At the current state of the art, most of the Lean activity is on formalizing proofs that have already been proven by humans. A math paper basically is a blueprint in a sense. It is taking a difficult statement like big theorem and breaking up into me a hundred little lemmas, but often not all written with enough detail that each one can be sort of directly formalized.
A blueprint is a really pedantically written version of a paper where every step is explained as much detail as possible and just trying to make each step kind of self-contained or depending on only a very specific number of previous statements that been proven so that each node of this blueprint graph that gets generated can be tackled independently of the others. And you don’t even need to know how the whole thing works. So it’s like a modern supply chain. If you want to create an iPhone or some other complicated object, no one person can build up a single object, but you can have specialists who just, if they’re given some widgets from some other company, they can combine them together to form a slightly bigger widget.
Lex Fridman
I think that’s a really exciting possibility because you can have, if you can find problems that could be broken down in this way, then you could have thousands of contributors, right? To be completely distributed.
I think that’s a really exciting possibility because you can have, if you can find problems that could be broken down in this way, then you could have thousands of contributors, right? To be completely distributed.
Terence Tao
So I told you before about this split between theoretical and experimental mathematics. And right now most mathematics is theoretical, only a tiny bit it’s experimental. I think the platform that Lean and other software tools, so GitHub and things like that will allow experimental mathematics to scale up to a much greater degree than we can do now. So right now, if you want to do any mathematical exploration of some mathematical pattern or something, you need some code to write out the pattern. And I mean, sometimes there are some computer algebra packages that could help, but often it’s just one mathematician coding lots and lots of Python or whatever. And because coding is such an error-prone activity, it’s not practical to allow other people to collaborate with you on writing modules for your code because if one of the modules has a bug in it, the whole thing is unreliable. So you get these bespoke spaghetti code written by non-professional programmers, mathematicians, and they’re clunky and slow. And so because of that, it’s hard to really mass-produce experimental results.
So I told you before about this split between theoretical and experimental mathematics. And right now most mathematics is theoretical, only a tiny bit it’s experimental. I think the platform that Lean and other software tools, so GitHub and things like that will allow experimental mathematics to scale up to a much greater degree than we can do now. So right now, if you want to do any mathematical exploration of some mathematical pattern or something, you need some code to write out the pattern. And I mean, sometimes there are some computer algebra packages that could help, but often it’s just one mathematician coding lots and lots of Python or whatever. And because coding is such an error-prone activity, it’s not practical to allow other people to collaborate with you on writing modules for your code because if one of the modules has a bug in it, the whole thing is unreliable. So you get these bespoke spaghetti code written by non-professional programmers, mathematicians, and they’re clunky and slow. And so because of that, it’s hard to really mass-produce experimental results.
But I think with Lean, I’m already starting some projects where we are not just experimenting with data, but experimenting with proofs. So I have this project called the Equational Theories Project. Basically we generated about 22 million little problems in abstract algebra. Maybe I should back up and tell you what the project is. Okay, so abstract algebra studies operations like multiplication, addition and the abstract properties. So multiplication for example, is commutative. X times Y is always Y times X, at least for numbers. And it’s also associative. X times Y times Z is the same as X times Y times Z. So these operations obey some laws that don’t obey others. For example, X times X is not always equal to X. So that law is not always true. So given any operation, it obeys some laws and not others. And so we generated about 4,000 of these possible laws of algebra that certain operations can satisfy.
And our question is which laws imply which other ones, so for example, does commutativity imply associativity? And the answer is no, because it turns out you can describe an operation which obeys the commutative law but doesn’t obey the associative law. So by producing an example, you can show that commutativity does not imply associativity. But some other laws do imply other laws by substitution and so forth, and you can write down some algebraic proof. So we look at all the pairs between these 4,000 laws and this up 22 million of these pairs. And for each pair we ask, does this law imply this law? If so, give a proof. If not, give a counterexample. So 22 million problems, each one of which you could give to an undergraduate algebra student, and they had a decent chance of solving the problem, although there are a few, at least 22 million, like a hundred or so that are really quite hard, but a lot are easy. And the project was just to work out to determine the entire graph which ones imply which other ones.
Lex Fridman
That’s an incredible project, by the way. Such a good idea, such a good test that the very thing we’ve been talking about at a scale that’s remarkable.
That’s an incredible project, by the way. Such a good idea, such a good test that the very thing we’ve been talking about at a scale that’s remarkable.
Terence Tao
So it would not have been feasible. The state of the art in the literature was like 15 equations and sort of how they applied, that’s at the limit of what a human with pen and paper can do. So you need to scale that up. So you need to crowdsource, but you also need to trust all the, no one person can check 22 million of these proofs. You need it to be computerized. And so it only became possible with Lean. We were hoping to use a lot of AI as well. So the project is almost complete. So at these 22 million, all but two had been settled.
So it would not have been feasible. The state of the art in the literature was like 15 equations and sort of how they applied, that’s at the limit of what a human with pen and paper can do. So you need to scale that up. So you need to crowdsource, but you also need to trust all the, no one person can check 22 million of these proofs. You need it to be computerized. And so it only became possible with Lean. We were hoping to use a lot of AI as well. So the project is almost complete. So at these 22 million, all but two had been settled.
Lex Fridman
Wow.
Wow.
Terence Tao
Well, actually, and of those two, we have a pen and paper proof of the two, and we’re formalizing it. In fact, this morning I was working on finishing it, so we’re almost done on this.
Well, actually, and of those two, we have a pen and paper proof of the two, and we’re formalizing it. In fact, this morning I was working on finishing it, so we’re almost done on this.
Lex Fridman
It’s incredible.
It’s incredible.
Terence Tao
Yeah. Fantastic.
Yeah. Fantastic.
Lex Fridman
How many people were you able to get?
How many people were you able to get?
Terence Tao
About 50, which in mathematics is considered a huge number.
About 50, which in mathematics is considered a huge number.
Lex Fridman
It’s a huge number. That’s crazy.
It’s a huge number. That’s crazy.
Terence Tao
Yeah. So we’re going to have a paper of 50 authors and a big appendix of who contributed what.
Yeah. So we’re going to have a paper of 50 authors and a big appendix of who contributed what.
Lex Fridman
Here’s an question, not to maybe speak even more generally about it. When you have this pool of people, is there a way to organize the contributions by level of expertise of the people, of the contributors? Now, okay, I’m asking a lot of pothead questions here, but I’m imagining a bunch of humans, and maybe in the future, some AIs, can there be an ELO rating type of situation?
Here’s an question, not to maybe speak even more generally about it. When you have this pool of people, is there a way to organize the contributions by level of expertise of the people, of the contributors? Now, okay, I’m asking a lot of pothead questions here, but I’m imagining a bunch of humans, and maybe in the future, some AIs, can there be an ELO rating type of situation?
Lex Fridman
Can there be an Elo-rating type of situation where a gamification of this.
Can there be an Elo-rating type of situation where a gamification of this.
Terence Tao
The beauty of these lean projects is that automatically you get all this data, so everything’s being uploaded for this GitHub. GitHub tracks who contributed what. So you could generate statistics at any later point in time. You can say, “Oh, this person contributed this many lines of code” or whatever. These are very crude metrics. I would definitely not want this to become part of your tenure review or something. But I mean, I think already in enterprise computing, people do use some of these metrics as part of the assessment of performance of an employee. Again, this is the direction which is a bit scary for academics to go down. We don’t like metrics so much.
The beauty of these lean projects is that automatically you get all this data, so everything’s being uploaded for this GitHub. GitHub tracks who contributed what. So you could generate statistics at any later point in time. You can say, “Oh, this person contributed this many lines of code” or whatever. These are very crude metrics. I would definitely not want this to become part of your tenure review or something. But I mean, I think already in enterprise computing, people do use some of these metrics as part of the assessment of performance of an employee. Again, this is the direction which is a bit scary for academics to go down. We don’t like metrics so much.
Lex Fridman
And yet academics use metrics. They just use old ones, number of papers.
And yet academics use metrics. They just use old ones, number of papers.
Terence Tao
Yeah, it’s true that…
Yeah, it’s true that…
Lex Fridman
It feels like this is a metric, while flawed, is going in more in the right direction. Right.
It feels like this is a metric, while flawed, is going in more in the right direction. Right.
Terence Tao
Yeah.
Yeah.
Lex Fridman
It’s interesting. At least it’s a very interesting metric.
It’s interesting. At least it’s a very interesting metric.
Terence Tao
Yeah, I think it’s interesting to study. I think you can do studies of whether these are better predictors. There’s this problem called Goodhart’s Law. If a statistic is actually used to incentivize performance, it becomes gamed, and then it’s no longer a useful measure.
Yeah, I think it’s interesting to study. I think you can do studies of whether these are better predictors. There’s this problem called Goodhart’s Law. If a statistic is actually used to incentivize performance, it becomes gamed, and then it’s no longer a useful measure.
Lex Fridman
Oh, humans. Always gaming the…
Oh, humans. Always gaming the…
Terence Tao
It’s rational. So what we’ve done for this project is self-report. So there are actually standard categories from the sciences of what types of contributions people give. So there’s the concept and validation and resources and coding and so forth. So there’s a standard list of twelve or so categories, and we just ask each contributor to… There’s a big matrix of all the authors and all the categories just to tick the boxes where they think that they contributed, and just give a rough idea. Also, you did some coding and you provided some compute, but you didn’t do any of the pen- and-paper verification or whatever.
It’s rational. So what we’ve done for this project is self-report. So there are actually standard categories from the sciences of what types of contributions people give. So there’s the concept and validation and resources and coding and so forth. So there’s a standard list of twelve or so categories, and we just ask each contributor to… There’s a big matrix of all the authors and all the categories just to tick the boxes where they think that they contributed, and just give a rough idea. Also, you did some coding and you provided some compute, but you didn’t do any of the pen- and-paper verification or whatever.
And I think that that works out. Traditionally, mathematicians just order alphabetically by surname. So we don’t have this tradition as in the sciences of “lead author” and “second author” and so forth, which we’re proud of. We make all the authors equal status, but it doesn’t quite scale to this size. So a decade ago I was involved in these things called polymath projects. It was the crowdsourcing mathematics but without the lean component. So it was limited by, you needed a human moderator to actually check that all the contributions coming in were actually valid. And this was a huge bottleneck, actually, but still we had projects that were 10 authors or so. But we had decided, at the time, not to try to decide who did what, but to have a single pseudonym. So we created this fictional character called DHJ Polymath in the spirit of [inaudible 01:41:51]. This is the pseudonym for a famous group of mathematicians in the 20th century.
And so the paper was authored on the pseudonym, so none of us got the author credit. This actually turned out to be not so great for a couple of reasons. So one is that if you actually wanted to be considered for tenure or whatever, you could not use this paper in your… As you submitted as one your publications, because it didn’t have the formal author credit. But the other thing that we’ve recognized much later is that when people referred to these projects, they naturally referred to the most famous person who was involved in the project. So “This was Tim Gower’s playoff project.” “This was Terence Tao’s playoff project,” and not mention the other 19 or whatever people that were involved.
Lex Fridman
Oh, yeah.
Oh, yeah.
Terence Tao
So we’re trying something different this time around where we have, everyone’s an author, but we will have an appendix with this matrix, and we’ll see how that works.
So we’re trying something different this time around where we have, everyone’s an author, but we will have an appendix with this matrix, and we’ll see how that works.
DeepMind’s AlphaProof
Lex Fridman
So both projects are incredible, just the fact that you’re involved in such huge collaborations. But I think I saw a talk from Kevin Buzzard about the Lean Programming Language just a few years ago, and you’re saying that this might be the future of mathematics. And so it’s also exciting that you’re embracing one of the greatest mathematicians in the world embracing this, what seems like the paving of the future of mathematics.
So both projects are incredible, just the fact that you’re involved in such huge collaborations. But I think I saw a talk from Kevin Buzzard about the Lean Programming Language just a few years ago, and you’re saying that this might be the future of mathematics. And so it’s also exciting that you’re embracing one of the greatest mathematicians in the world embracing this, what seems like the paving of the future of mathematics.
So I have to ask you here about the integration of AI into this whole process. So DeepMind’s alpha proof was trained using reinforcement learning on both failed and successful formal lean proofs of IMO problems. So this is sort of high-level high school?
Terence Tao
Oh, very high-level, yes.
Oh, very high-level, yes.
Lex Fridman
Very high-level, high-school level mathematics problems. What do you think about the system and maybe what is the gap between this system that is able to prove the high-school level problems versus gradual-level problems?
Very high-level, high-school level mathematics problems. What do you think about the system and maybe what is the gap between this system that is able to prove the high-school level problems versus gradual-level problems?
Terence Tao
Yeah, the difficulty increases exponentially with the number of steps involved in the proof. It’s a commentarial explosion. So the thing of large language models is that they make mistakes and so if a proof has got 20 steps and your [inaudible 01:44:01] has a 10% failure rate at each step of going the wrong direction, it’s extremely unlikely to actually reach the end.
Yeah, the difficulty increases exponentially with the number of steps involved in the proof. It’s a commentarial explosion. So the thing of large language models is that they make mistakes and so if a proof has got 20 steps and your [inaudible 01:44:01] has a 10% failure rate at each step of going the wrong direction, it’s extremely unlikely to actually reach the end.
Lex Fridman
Actually, just to take a small tangent here, how hard is the problem of mapping from natural language to the formal program?
Actually, just to take a small tangent here, how hard is the problem of mapping from natural language to the formal program?
Terence Tao
Oh yeah. It’s extremely hard, actually. Natural language, it’s very fault-tolerant. You can make a few minor grammatical errors and speak in the second language, can get some idea of what you’re saying. But formal language, if you get one little thing wrong, then the whole thing is nonsense. Even formal to formal is very hard. There are different incompatible prefaces and languages. There’s Lean, but also Cox and Isabelle and so forth. And even converting from a formal action to formal language is an unsolved problem.
Oh yeah. It’s extremely hard, actually. Natural language, it’s very fault-tolerant. You can make a few minor grammatical errors and speak in the second language, can get some idea of what you’re saying. But formal language, if you get one little thing wrong, then the whole thing is nonsense. Even formal to formal is very hard. There are different incompatible prefaces and languages. There’s Lean, but also Cox and Isabelle and so forth. And even converting from a formal action to formal language is an unsolved problem.
Lex Fridman
That is fascinating. Okay. But once you have an informal language, they’re using their RL trained model, something akin to AlphaZero that they used to go to then try to come up with tools, also have a model. I believe it’s a separate model for geometric problems.
That is fascinating. Okay. But once you have an informal language, they’re using their RL trained model, something akin to AlphaZero that they used to go to then try to come up with tools, also have a model. I believe it’s a separate model for geometric problems.
Terence Tao
Yes.
Yes.
Lex Fridman
So what impresses you about the system, and what do you think is the gap?
So what impresses you about the system, and what do you think is the gap?
Terence Tao
Yeah, we talked earlier about things that are amazing over time become kind of normalized. So now somehow, it’s of course geometry is a silver bullet problem.
Yeah, we talked earlier about things that are amazing over time become kind of normalized. So now somehow, it’s of course geometry is a silver bullet problem.
Lex Fridman
Right. That’s true, that’s true. I mean, it’s still beautiful to…
Right. That’s true, that’s true. I mean, it’s still beautiful to…
Terence Tao
Yeah, these are great work that shows what’s possible. The approach doesn’t scale currently. Three days of Google’s server time can solve one high school math format there. This is not a scalable prospect, especially with the exponential increase as the complexity increases.
Yeah, these are great work that shows what’s possible. The approach doesn’t scale currently. Three days of Google’s server time can solve one high school math format there. This is not a scalable prospect, especially with the exponential increase as the complexity increases.
Lex Fridman
We should mention that they got a silver medal performance. The equivalent of the silver medal performance.
We should mention that they got a silver medal performance. The equivalent of the silver medal performance.
Terence Tao
So first of all, they took way more time than was allotted, and they had this assistance where the humans started helped by formalizing, but also they’re giving themselves full marks for the solution, which I guess is formally verified. So I guess that’s fair. There are efforts, there will be a proposal at some point to actually have an AI math Olympiad where at the same time as the human contestants get the actual Olympiad problems, AI’s will also be given the same problems, the same time period and the outputs will have to be graded by the same judges, which means that it’ll have be written in natural language rather than formal language.
So first of all, they took way more time than was allotted, and they had this assistance where the humans started helped by formalizing, but also they’re giving themselves full marks for the solution, which I guess is formally verified. So I guess that’s fair. There are efforts, there will be a proposal at some point to actually have an AI math Olympiad where at the same time as the human contestants get the actual Olympiad problems, AI’s will also be given the same problems, the same time period and the outputs will have to be graded by the same judges, which means that it’ll have be written in natural language rather than formal language.
Lex Fridman
Oh, I hope that happens. I hope that this IMO happens. I hope next one.
Oh, I hope that happens. I hope that this IMO happens. I hope next one.
Terence Tao
It won’t happen this IMO. The performance is not good enough in the time period. But there are smaller competitions, there are competitions where the answer is a number rather than a long form proof. And AI is actually a lot better at problems where there’s a specific numerical answer, because it’s easy to do reinforcement learning on it.” Yeah, you’ve got the right answer, you’ve got the wrong answer.” It’s a very clear signal, but a long form proof either has to be formal, and then the Lean can give it thumbs up or down, or it’s informal, but then you need a human to create it to tell. And if you’re trying to do billions of reinforcement learning runs, you can’t hire enough humans to grade those. It’s already hard enough for the last language to do reinforcement learning on just the regular text that people get. But now we actually hire people, not just give thumbs up, thumbs down, but actually check the output mathematically, yeah, that’s too expensive.
It won’t happen this IMO. The performance is not good enough in the time period. But there are smaller competitions, there are competitions where the answer is a number rather than a long form proof. And AI is actually a lot better at problems where there’s a specific numerical answer, because it’s easy to do reinforcement learning on it.” Yeah, you’ve got the right answer, you’ve got the wrong answer.” It’s a very clear signal, but a long form proof either has to be formal, and then the Lean can give it thumbs up or down, or it’s informal, but then you need a human to create it to tell. And if you’re trying to do billions of reinforcement learning runs, you can’t hire enough humans to grade those. It’s already hard enough for the last language to do reinforcement learning on just the regular text that people get. But now we actually hire people, not just give thumbs up, thumbs down, but actually check the output mathematically, yeah, that’s too expensive.
Human mathematicians vs AI
Lex Fridman
So if we just explore this possible future, what is the thing that humans do that’s most special in mathematics, that you could see AI not cracking for a while? So inventing new theories? Coming up with new conjectures versus proving the conjectures? Building new abstractions? New representations? Maybe an AI turnstile with seeing new connections between disparate fields?
So if we just explore this possible future, what is the thing that humans do that’s most special in mathematics, that you could see AI not cracking for a while? So inventing new theories? Coming up with new conjectures versus proving the conjectures? Building new abstractions? New representations? Maybe an AI turnstile with seeing new connections between disparate fields?
Terence Tao
That’s a good question. I think the nature of what mathematicians do over time has changed a lot. So a thousand years ago, mathematicians had to compute the date of Easter, and they really complicated calculations, but it is all automated, the order of centuries, we don’t need that anymore. They used to navigate to do spherical navigation, circle trigonometry to navigate how to get from the Old World to the New or something, like very complicated calculation. Again, have been automated. Even a lot of undergraduate mathematics even before AI, like Wolfram Alpha for example. It’s not a language model, but it can solve a lot of undergraduate-level math tasks. So on the computational side, verifying routine things, like having a problem and saying, ” Here’s a problem in partial differential equations, could you solve it using any of the 20 standard techniques?” And say, “Yes, I’ve tried all 20 and here are the 100 different permutations and my results.”
That’s a good question. I think the nature of what mathematicians do over time has changed a lot. So a thousand years ago, mathematicians had to compute the date of Easter, and they really complicated calculations, but it is all automated, the order of centuries, we don’t need that anymore. They used to navigate to do spherical navigation, circle trigonometry to navigate how to get from the Old World to the New or something, like very complicated calculation. Again, have been automated. Even a lot of undergraduate mathematics even before AI, like Wolfram Alpha for example. It’s not a language model, but it can solve a lot of undergraduate-level math tasks. So on the computational side, verifying routine things, like having a problem and saying, ” Here’s a problem in partial differential equations, could you solve it using any of the 20 standard techniques?” And say, “Yes, I’ve tried all 20 and here are the 100 different permutations and my results.”
And that type of thing, I think it will work very well, type of scaling to once you solve one problem to make the AI attack a hundred adjacent problems. The things that humans do still… So where the AI really struggles right now is knowing when it’s made a wrong turn. It can say, “Oh, I’m going to solve this problem. I’m going to split up this one into these two cases. I’m going to try this technique.” And sometimes, if you’re lucky and it’s a simple problem, it’s the right technique and you solve the problem and sometimes it will have a problem, it would propose an approach which is just complete nonsense, but it looks like a proof.
So this is one annoying thing about LLM-generated mathematics. So yeah, we’ve had human generated mathematics as a very low quality, like submissions who don’t have the formal training and so forth, but if a human proof is bad, you can tell it’s bad pretty quickly. It makes really basic mistakes. But the AI-generated proofs, they can look superficially flawless. And it’s partly because what the reinforcement learning has actually trained them to do, to make things to produce tech that looks like what is correct, which for many applications is good enough. So the air is often really subtle and then when you spot them, they’re really stupid. Like no human would’ve actually made that mistake.
Lex Fridman
Yeah, it’s actually really frustrating in the programming context, because I program a lot, and yeah, when a human makes low quality code, there’s something called “code smell”, right? You can tell immediately there’s signs, but with the AI generated code…
Yeah, it’s actually really frustrating in the programming context, because I program a lot, and yeah, when a human makes low quality code, there’s something called “code smell”, right? You can tell immediately there’s signs, but with the AI generated code…
Terence Tao
[inaudible 01:50:53].
[inaudible 01:50:53].
Lex Fridman
And you’re right, eventually you find an obvious dumb thing that just looks like good code.
And you’re right, eventually you find an obvious dumb thing that just looks like good code.
Terence Tao
Yeah.
Yeah.
Lex Fridman
It’s very tricky, too, and frustrating, for some reason, to have to work.
It’s very tricky, too, and frustrating, for some reason, to have to work.
Terence Tao
So the sense of smell, this is one thing that humans have, and there’s a metaphorical mathematical smell that it’s not clear how to get the AI to duplicate that eventually. So the way AlphaZero and so forth make progress on Go and chess and so forth, is in some sense they have developed a sense of smell for Go and chess positions, that this position is good for white, it’s good for black. They can’t initiate why, but just having that sense of smell lets them strategize. So if AIs gain that ability to a sense of viability of certain proof strategies, because I’m going to try to break up this problem into two small subtasks and they can say, “Oh, this looks good. The two tasks look like they’re simpler tasks than your main task and they’ve still got a good chance of being true. So this is good to try.” Or “No, you’ve made the problem worse, because each of the two subproblems is actually harder than your original problem,” which is actually what normally happens if you try a random thing to try normally it’s very easy to transform a problem into an even harder problem. Very rarely do you transform into a simpler problem. So if they can pick up a sense of smell, then they could maybe start competing with a human level of mathematicians.
So the sense of smell, this is one thing that humans have, and there’s a metaphorical mathematical smell that it’s not clear how to get the AI to duplicate that eventually. So the way AlphaZero and so forth make progress on Go and chess and so forth, is in some sense they have developed a sense of smell for Go and chess positions, that this position is good for white, it’s good for black. They can’t initiate why, but just having that sense of smell lets them strategize. So if AIs gain that ability to a sense of viability of certain proof strategies, because I’m going to try to break up this problem into two small subtasks and they can say, “Oh, this looks good. The two tasks look like they’re simpler tasks than your main task and they’ve still got a good chance of being true. So this is good to try.” Or “No, you’ve made the problem worse, because each of the two subproblems is actually harder than your original problem,” which is actually what normally happens if you try a random thing to try normally it’s very easy to transform a problem into an even harder problem. Very rarely do you transform into a simpler problem. So if they can pick up a sense of smell, then they could maybe start competing with a human level of mathematicians.
Lex Fridman
So this is a hard question, but not competing but collaborating. Okay, hypothetical. If I gave you an Oracle that was able to do some aspect of what you do and you could just collaborate with it, what would you like that Oracle to be able to do? Would you like it to maybe be a verifier, like check, do the codes? Like “Yes, Professor Tao, correct, this is a promising fruitful direction”? Or would you like it to generate possible proofs and then you see which one is the right one? Or would you like it to maybe generate different representation, different totally different ways of seeing this problem?
So this is a hard question, but not competing but collaborating. Okay, hypothetical. If I gave you an Oracle that was able to do some aspect of what you do and you could just collaborate with it, what would you like that Oracle to be able to do? Would you like it to maybe be a verifier, like check, do the codes? Like “Yes, Professor Tao, correct, this is a promising fruitful direction”? Or would you like it to generate possible proofs and then you see which one is the right one? Or would you like it to maybe generate different representation, different totally different ways of seeing this problem?
Terence Tao
Yeah, I think all of the above. A lot of it is we don’t know how to use these tools, because it’s a paradigm that… We have not had in the past. Systems that are competent enough to understand complex instructions that can work at massive scale, but are also unreliable. It’s an interesting… A bit unreliable in subtle ways, whereas was providing sufficiently good output. It’s an interesting combination. I mean, you have graduate students that you work with who kind of like this, but not at scale. And we had previous software tools that can work at scale, but very narrow, so we have to figure out how to use, so Tim Gowers is actually, you mentioned he actually foresaw in 2000. He was envisioning what mathematics would look like in actually two and a half decades.
Yeah, I think all of the above. A lot of it is we don’t know how to use these tools, because it’s a paradigm that… We have not had in the past. Systems that are competent enough to understand complex instructions that can work at massive scale, but are also unreliable. It’s an interesting… A bit unreliable in subtle ways, whereas was providing sufficiently good output. It’s an interesting combination. I mean, you have graduate students that you work with who kind of like this, but not at scale. And we had previous software tools that can work at scale, but very narrow, so we have to figure out how to use, so Tim Gowers is actually, you mentioned he actually foresaw in 2000. He was envisioning what mathematics would look like in actually two and a half decades.
Lex Fridman
That’s funny.
That’s funny.
Terence Tao
Yeah, he wrote his article, a hypothetical conversation between a mathematical assistant of the future and himself. He’s trying to solve a problem and they would have a conversation. Sometimes the human would propose an idea and the AI would evaluate it, and sometimes the AI would propose an idea and sometimes a competition was required and AI would just go and say, “Okay, I’ve checked the 100 cases needed here,” or “The first you set this through for all N, I’ve checked N up to 100 and it looks good so far,” or “Hang on, there’s a problem at N equals 46.” So just a freeform conversation where you don’t know in advance where things are going to go, but just based on, “I think ideas are going to propose on both sides.” Calculations could propose on both sides.
Yeah, he wrote his article, a hypothetical conversation between a mathematical assistant of the future and himself. He’s trying to solve a problem and they would have a conversation. Sometimes the human would propose an idea and the AI would evaluate it, and sometimes the AI would propose an idea and sometimes a competition was required and AI would just go and say, “Okay, I’ve checked the 100 cases needed here,” or “The first you set this through for all N, I’ve checked N up to 100 and it looks good so far,” or “Hang on, there’s a problem at N equals 46.” So just a freeform conversation where you don’t know in advance where things are going to go, but just based on, “I think ideas are going to propose on both sides.” Calculations could propose on both sides.
I’ve had conversations with AI where I say, “Okay, we’re going to collaborate to solve this math problem,” and it’s a problem that I already know the solution to, so I try to prompt it. “Okay, so here’s the problem.” I suggest using this tool, and it’ll find this.” Okay, it might start using this, and then it’ll go back to the tool that it wanted to do before. You have to keep railroading it onto the path you want, and I could eventually force it to give the proof I wanted, but it was like herding cats. And the amount of personal effort I had to take to not just prompt it but also check its output because a lot of what it looked like is going to work, I know there’s a problem on line 17, and basically arguing with it. It was more exhausting than doing it unassisted, but that’s the current state of the art.
Lex Fridman
I wonder if there’s a phase shift that happens to where it’s no longer feels like herding cats. And maybe you’ll surprise us how quickly that comes.
I wonder if there’s a phase shift that happens to where it’s no longer feels like herding cats. And maybe you’ll surprise us how quickly that comes.
Terence Tao
I believe so. In formalization, I mentioned before that it takes 10 times longer to formalize a proof than to write it by hand. With these modern AI tools and also just better tooling, the Lean developers are doing a great job adding more and more features and making it user-friendly going from nine to eight to seven… Okay, no big deal, but one day it’ll drop a little one. And that’s a phase shift, because suddenly it makes sense when you write a paper to write it in Lean first, or through a conversation with AI, which is generally on the fly with you, and it becomes natural for journals to accept. Maybe they’ll offer expedite refereeing. If a paper has already been formalized in Lean, they’ll just ask the referee to comment on the significance of the results and how it connects to literature and not worry so much about the correctness, because that’s been certified. Papers are getting longer and longer in mathematics, and it’s harder and harder to get good refereeing for the really long ones unless they’re really important. It is actually an issue, and the formalization is coming in at just the right time for this to be.
I believe so. In formalization, I mentioned before that it takes 10 times longer to formalize a proof than to write it by hand. With these modern AI tools and also just better tooling, the Lean developers are doing a great job adding more and more features and making it user-friendly going from nine to eight to seven… Okay, no big deal, but one day it’ll drop a little one. And that’s a phase shift, because suddenly it makes sense when you write a paper to write it in Lean first, or through a conversation with AI, which is generally on the fly with you, and it becomes natural for journals to accept. Maybe they’ll offer expedite refereeing. If a paper has already been formalized in Lean, they’ll just ask the referee to comment on the significance of the results and how it connects to literature and not worry so much about the correctness, because that’s been certified. Papers are getting longer and longer in mathematics, and it’s harder and harder to get good refereeing for the really long ones unless they’re really important. It is actually an issue, and the formalization is coming in at just the right time for this to be.
Lex Fridman
And the easier and easier to guess because of the tooling and all the other factors, then you’re going to see much more like math lib will grow potentially exponentially, as it’s a virtuous cycle.
And the easier and easier to guess because of the tooling and all the other factors, then you’re going to see much more like math lib will grow potentially exponentially, as it’s a virtuous cycle.
Terence Tao
I mean, one phase shift of this type that happened in the past was the adoption of LaTeX. So LaTeX is this typesetting language that all mathematicians use now. So in the past people used all kinds of word processors and typewriters and whatever, but at some point LaTeX became easier to use than all other competitors, and people would switch within a few years. It was just a dramatic base shift.
I mean, one phase shift of this type that happened in the past was the adoption of LaTeX. So LaTeX is this typesetting language that all mathematicians use now. So in the past people used all kinds of word processors and typewriters and whatever, but at some point LaTeX became easier to use than all other competitors, and people would switch within a few years. It was just a dramatic base shift.
AI winning the Fields Medal
Lex Fridman
It’s a wild, out-there question, but what year, how far away are we from a AI system being a collaborator on a proof that wins the Fields Medal? So that level.
It’s a wild, out-there question, but what year, how far away are we from a AI system being a collaborator on a proof that wins the Fields Medal? So that level.
Terence Tao
Okay, well it depends on the level of collaboration, right?
Okay, well it depends on the level of collaboration, right?
Lex Fridman
No, it deserves to be get the Fields Medal. So half-and-half
No, it deserves to be get the Fields Medal. So half-and-half
Terence Tao
Already. I can imagine if it was a medal-winning paper, having some AI assistance in writing it just like the order complete alone is already, I use it speeds up my own writing. You can have a theorem and you have a proof, and the proof has three cases, and I write down the proof of first case and the autocomplete just suggests that. Now here’s how the proof of second case could work. And it was exactly correct. That was great. Saved me like five, ten minutes of typing.
Already. I can imagine if it was a medal-winning paper, having some AI assistance in writing it just like the order complete alone is already, I use it speeds up my own writing. You can have a theorem and you have a proof, and the proof has three cases, and I write down the proof of first case and the autocomplete just suggests that. Now here’s how the proof of second case could work. And it was exactly correct. That was great. Saved me like five, ten minutes of typing.
Lex Fridman
But in that case, the AI system doesn’t get the Fields Medal. Are we talking 20 years, 50 years, a hundred years? What do you think?
But in that case, the AI system doesn’t get the Fields Medal. Are we talking 20 years, 50 years, a hundred years? What do you think?
Terence Tao
Okay, so I gave a prediction in print by 2026, which is now next year, there will be math collaborations with the AI, so not Fields-Medal winning, but actual research-level papers.
Okay, so I gave a prediction in print by 2026, which is now next year, there will be math collaborations with the AI, so not Fields-Medal winning, but actual research-level papers.
Lex Fridman
Published ideas that are in part generated by AI.
Published ideas that are in part generated by AI.
Terence Tao
Maybe not the ideas, but at least some of the computations, the verifications.
Maybe not the ideas, but at least some of the computations, the verifications.
Lex Fridman
Has that already happened?
Has that already happened?
Terence Tao
That already happened. There are problems that were solved by a complicated process conversing with AI to propose things and the human goes and tries it and the contract doesn’t work, but it might pose a different idea. It’s hard to disentangle exactly. There are certainly math results which could only have been accomplished because there was a human authentication and an AI involved, but it’s hard to disentangle credit. I mean, these tools, they do not replicate all the skills needed to do mathematics, but they can replicate some non-trivial percentage of them, 30, 40%, so they can fill in gaps. So coding is a good example. So it’s annoying for me to code in Python. I’m not a native, I’m a professional programmer, but with AI, the friction cost of doing it is much reduced. So it fills in that gap for me. AI is getting quite good at literature review.
That already happened. There are problems that were solved by a complicated process conversing with AI to propose things and the human goes and tries it and the contract doesn’t work, but it might pose a different idea. It’s hard to disentangle exactly. There are certainly math results which could only have been accomplished because there was a human authentication and an AI involved, but it’s hard to disentangle credit. I mean, these tools, they do not replicate all the skills needed to do mathematics, but they can replicate some non-trivial percentage of them, 30, 40%, so they can fill in gaps. So coding is a good example. So it’s annoying for me to code in Python. I’m not a native, I’m a professional programmer, but with AI, the friction cost of doing it is much reduced. So it fills in that gap for me. AI is getting quite good at literature review.
I mean, it’s still a problem with hallucinating references that don’t exist, but this, I think, is a solvable problem. If you train in the right way and so forth and verify using the internet, you should, in a few years, get to the point where you have a lemma that you need and say, “Has anyone proven this lemma before?” And it will do basically a fancy web search and say, yeah, there are these six papers where something similar has happened. I mean, you can ask it right now and it’ll give you six papers of which maybe one is legitimate and relevant, one exists but is not relevant, and four are hallucinated. It has a non-zero success rate right now, but there’s so much garbage, so much the signal-to-noise ratio is so poor, that it’s most helpful when you already somewhat know the relationship, and you just need to be prompted to be reminded of a paper that was already subconsciously in your memory.
Lex Fridman
Versus helping you discover new you were not even aware of, but is the correct citation.
Versus helping you discover new you were not even aware of, but is the correct citation.
Terence Tao
Yeah, that it can sometimes do, but when it does, it’s buried in a list of options for which the other-
Yeah, that it can sometimes do, but when it does, it’s buried in a list of options for which the other-
Lex Fridman
That are bad. I mean, being able to automatically generate a related work section that is correct. That’s actually a beautiful thing. That might be another phase shift because it assigns credit correctly. It breaks you out of the silos of thought.
That are bad. I mean, being able to automatically generate a related work section that is correct. That’s actually a beautiful thing. That might be another phase shift because it assigns credit correctly. It breaks you out of the silos of thought.
Terence Tao
Yeah, no, there’s a big hump to overcome right now. I mean it’s like self-driving cars. The safety margin has to be really high for it to be feasible. So yeah, there’s a [inaudible 02:01:54]-Morrow problem with a lot of AI applications that they can develop tools that work 20%, 80% of the time, but it’s still not good enough. And in fact, even worse than good, in some ways.
Yeah, no, there’s a big hump to overcome right now. I mean it’s like self-driving cars. The safety margin has to be really high for it to be feasible. So yeah, there’s a [inaudible 02:01:54]-Morrow problem with a lot of AI applications that they can develop tools that work 20%, 80% of the time, but it’s still not good enough. And in fact, even worse than good, in some ways.
Lex Fridman
I mean, another way of asking the Fields Medal question is what year do you think you’ll wake up and be like real surprised? You read the headline, the news or something happened that AI did, real breakthrough. Something. Like Fields Medal, even a hypothesis. It could be really just this AlphaZero Go moment would go that kind of thing.
I mean, another way of asking the Fields Medal question is what year do you think you’ll wake up and be like real surprised? You read the headline, the news or something happened that AI did, real breakthrough. Something. Like Fields Medal, even a hypothesis. It could be really just this AlphaZero Go moment would go that kind of thing.
Terence Tao
Yeah, this decade I can see it making a conjecture between two things that people would thought was unrelated.
Yeah, this decade I can see it making a conjecture between two things that people would thought was unrelated.
Lex Fridman
Oh, interesting. Generating a conjecture. That’s a beautiful conjecture.
Oh, interesting. Generating a conjecture. That’s a beautiful conjecture.
Terence Tao
Yeah. And actually has a real chance of being correct and meaningful.
Yeah. And actually has a real chance of being correct and meaningful.
Lex Fridman
Because that’s actually kind of doable, I suppose, but the word of the data is…
Because that’s actually kind of doable, I suppose, but the word of the data is…
Terence Tao
Yeah.
Yeah.
Lex Fridman
No, that would be truly amazing.
No, that would be truly amazing.
Terence Tao
The current models struggle a lot. I mean, so a version of this… The physicists have a dream of getting the AI to discover new laws of physics. The dream is you just feed it all this data, and this is here is a new patent that we didn’t see before, but it actually, even the current state of the art even struggles to discover old laws of physics from the data. Or if it does, there’s a big concern of contamination, that it did it only because it’s somewhere in this training, somehow new, Boyle’s Law or whatever you’re trying to reconstruct.
The current models struggle a lot. I mean, so a version of this… The physicists have a dream of getting the AI to discover new laws of physics. The dream is you just feed it all this data, and this is here is a new patent that we didn’t see before, but it actually, even the current state of the art even struggles to discover old laws of physics from the data. Or if it does, there’s a big concern of contamination, that it did it only because it’s somewhere in this training, somehow new, Boyle’s Law or whatever you’re trying to reconstruct.
Part of it is we don’t have the right type of training data for this. So for laws of physics, we don’t have a million different universes with a million different laws of nature. And a lot of what we are missing in math is actually the negative space of… So we have published things of things that people have been able to prove, and conjectures that end up being verified or we counter examples produced, but we don’t have data on things that were proposed and they’re kind of a good thing to try, but then people quickly realized that it was the wrong conjecture and then they said, “Oh, but we should actually change our claim to modify it in this way to actually make it more plausible.”
There’s a trial and error process, which is a real integral part of human mathematical discovery, which we don’t record because it’s embarrassing. We make mistakes, and we only like to publish our wins. And the AI has no access to this data to train on. I sometimes joke that basically AI has to go through grad school and actually go to grad courses, do the assignments, go to office hours, make mistakes, get advice on how to correct the mistakes and learn from that.
Grigori Perelman
Lex Fridman
Let me ask you if I may, about Grigori Perelman, you mentioned that you try to be careful in your work and not let a problem completely consume you just you’ve really fall in love with the problem and it really cannot rest until you solve it. But you also hastened to add that sometimes this approach actually can be very successful, and an example you gave is Grigori Perelman who proved the Poincare Conjecture and did so by working alone for seven years, with basically little contact with the outside world. Can you explain this one Millennial Prize problem that’s been solved, Poincare Conjecture, and maybe speak to the journey that Grigori Perelman has been on?
Let me ask you if I may, about Grigori Perelman, you mentioned that you try to be careful in your work and not let a problem completely consume you just you’ve really fall in love with the problem and it really cannot rest until you solve it. But you also hastened to add that sometimes this approach actually can be very successful, and an example you gave is Grigori Perelman who proved the Poincare Conjecture and did so by working alone for seven years, with basically little contact with the outside world. Can you explain this one Millennial Prize problem that’s been solved, Poincare Conjecture, and maybe speak to the journey that Grigori Perelman has been on?
Terence Tao
All right, so it’s a question about curved spaces. Earth is a good example. So think of Earth as a 2-D surface. Injecting around you could maybe be a torus with a hole in it or can have many holes and there are many different topologies, a priori, that a surface could have, even if you assume that it’s bounded and smooth and so forth. So we have figured out how to classify surfaces as a first approximation. Everything is determined by some called the genus, how many holes it has. So a sphere has genus zero, or a donut has genus one, and so forth. And one way you can tell the surfaces apart, probably the sphere has, which is called simply connected. If you take any closed loop on the sphere, like a big closed loop of rope, you can contract it to a point while staying on the surface. And the sphere has this property, but a torus doesn’t. If you’re on a torus and you take a rope that goes around say the outer diameter of torus, there’s no way… It can’t get through the hole. There’s no way to contract it to a point.
All right, so it’s a question about curved spaces. Earth is a good example. So think of Earth as a 2-D surface. Injecting around you could maybe be a torus with a hole in it or can have many holes and there are many different topologies, a priori, that a surface could have, even if you assume that it’s bounded and smooth and so forth. So we have figured out how to classify surfaces as a first approximation. Everything is determined by some called the genus, how many holes it has. So a sphere has genus zero, or a donut has genus one, and so forth. And one way you can tell the surfaces apart, probably the sphere has, which is called simply connected. If you take any closed loop on the sphere, like a big closed loop of rope, you can contract it to a point while staying on the surface. And the sphere has this property, but a torus doesn’t. If you’re on a torus and you take a rope that goes around say the outer diameter of torus, there’s no way… It can’t get through the hole. There’s no way to contract it to a point.
So it turns out that the sphere is the only surface with this property of contractibility, up to continuous deformations of the sphere. So things that are what called topologically equivalent of the sphere. So Poincare asks the same question, higher dimensions, so it becomes hard to visualize because surface you can think of as embedded in three dimensions, but a curved three-space, we don’t have good intuition of four-dimensional space to live it. And there are also three-dimensional spaces that can’t even fit into four dimensions. You need five or six or higher. But anyway, mathematically you can still pose this question, that if you have a bounded three- dimensional space now, which also has this simply connected property that every loop can be contracted, can you turn it into a three-dimensional version of the sphere? And so this is the Poincare conjecture.
Weirdly, in higher dimensions, four and five was actually easier. So it was solved first in higher dimensions, there’s somehow more room to do the deformation. It is easier to move things around to your sphere. But three was really hard. So people tried many approaches. There’s sort of commentary approaches where you chop up the surface into little triangles or tetrahedra and you just try to argue based on how the faces interact each other. There were algebraic approaches, there’s various algebraic objects like things called the fundamental group that you can attach to these homologies and co-homology and all these very fancy tools. They also didn’t quite work, but Richard Hamilton’s proposed a partial differential equations approach.
So the problem is that… So you have this object, which is secret is a sphere, but it’s given to you in a weird way. So I think of a ball that’s being crumpled up and twisted, and it’s not obvious that it’s the ball, but if you have some sort of surface, which is a deformed sphere, you could for example, think that as a surface of a balloon, you could try to inflate it, you blow it up and naturally as you fill it with air, the wrinkles will sort of smooth out and it will turn into a nice round sphere, unless of course it was a torus or something, which case it would get stuck at some point.
If you inflate a torus, there be a point in the middle when the inner ring shrinks to zero, you get a singularity and you can’t blow up any further and you can’t flow further. So he created this flow, which is now called Ricci Flow, which is a way of taking an arbitrary surface or space and smoothing it out to make it rounder and rounder to make it look like a sphere. And he wanted to show that either this process would give you a sphere, or it would create a singularity, actually very much like how PDEs either they have global regularity or finite and blow up. Basically, it’s almost exactly the same thing. It’s all connected. And he showed that for two dimensions, two-dimensional surfaces, if you start to simply connect it, no singularities ever formed, you never ran into trouble and you could flow and it will give you a sphere. So he got a new proof of the two-dimensional result.
Lex Fridman
But by the way, that’s a beautiful explanation of Ricci flow in its application in this context. How difficult is the mathematics here for the 2D case? Is it?
But by the way, that’s a beautiful explanation of Ricci flow in its application in this context. How difficult is the mathematics here for the 2D case? Is it?
Terence Tao
Yeah, these are quite sophisticated equations on par with the Einstein equations. Slightly simpler, but they were considered hard nonlinear equations to solve, and there’s lots of special tricks in 2D that helped. But in 3D, the problem was that this equation was actually super critical. The same problem as [inaudible 02:09:48]. As you blow up, maybe the curvature could get concentrated in smaller and smaller regions, and it looked more and more nonlinear and things just looked worse and worse. And there could be all kinds of singularities that showed up. Some singularities, these things called neck pinches where the surface behaves like a barbell and it pinches at a point. Some singularities are simple enough that you can sort of see what to do next. You just make a snip and then you can turn one surface into two and e-bolt them separately. But there was the prospect that there’s some really nasty knotted singularities showed up that you couldn’t see how to resolve in any way, that you couldn’t do any surgery to. So you need to classify all the singularities, like what are all the possible ways that things can go wrong? So what Perelman did was, first of all, he made the problem, he turned the problem from a super critical problem to a critical problem. I said before about how the invention of energy, the Hamiltonian, really clarified Newtonian mechanics. So he introduced something which is now called Perelman’s reduced volume and Perelman’s entropy. He introduced new quantities, kind of like energy, that looked the same at every single scale, and turned the problem into a critical one where the non-linearities actually suddenly looked a lot less scary than they did before. And then he had to solve… He still had to analyze the singularities of this critical problem. And that itself was a problem similar to this wave map thing I worked on actually. So on the level of difficulty of that.
Yeah, these are quite sophisticated equations on par with the Einstein equations. Slightly simpler, but they were considered hard nonlinear equations to solve, and there’s lots of special tricks in 2D that helped. But in 3D, the problem was that this equation was actually super critical. The same problem as [inaudible 02:09:48]. As you blow up, maybe the curvature could get concentrated in smaller and smaller regions, and it looked more and more nonlinear and things just looked worse and worse. And there could be all kinds of singularities that showed up. Some singularities, these things called neck pinches where the surface behaves like a barbell and it pinches at a point. Some singularities are simple enough that you can sort of see what to do next. You just make a snip and then you can turn one surface into two and e-bolt them separately. But there was the prospect that there’s some really nasty knotted singularities showed up that you couldn’t see how to resolve in any way, that you couldn’t do any surgery to. So you need to classify all the singularities, like what are all the possible ways that things can go wrong? So what Perelman did was, first of all, he made the problem, he turned the problem from a super critical problem to a critical problem. I said before about how the invention of energy, the Hamiltonian, really clarified Newtonian mechanics. So he introduced something which is now called Perelman’s reduced volume and Perelman’s entropy. He introduced new quantities, kind of like energy, that looked the same at every single scale, and turned the problem into a critical one where the non-linearities actually suddenly looked a lot less scary than they did before. And then he had to solve… He still had to analyze the singularities of this critical problem. And that itself was a problem similar to this wave map thing I worked on actually. So on the level of difficulty of that.
So he managed to classify all the singularities of this problem, and show how to apply surgery to each of these. And through that was able to resolve the Poincare Conjecture. So quite a lot of really ambitious steps, and nothing that a large language model today, for example, could… At best, I could imagine a model proposing this idea as one of hundreds of different things to try, but the other 99 would be complete dead ends. But you’d only find out after months of work, he must have had some sense that this was the right track to pursue. It takes years to get from A to B.
Lex Fridman
So you’ve done, like you said, actually, you see even strictly mathematically, but more broadly in terms of the process, you’ve done similar-
So you’ve done, like you said, actually, you see even strictly mathematically, but more broadly in terms of the process, you’ve done similar-
Lex Fridman
In terms of the process, you’ve done similarly difficult things. What can you infer from the process he was going through because he was doing it alone? What are some low points in a process like that when you start to, you’ve mentioned hardship, AI doesn’t know when it’s failing. What happens to you, you’re sitting in your office when you realize the thing you did for the last few days, maybe weeks is a failure?
In terms of the process, you’ve done similarly difficult things. What can you infer from the process he was going through because he was doing it alone? What are some low points in a process like that when you start to, you’ve mentioned hardship, AI doesn’t know when it’s failing. What happens to you, you’re sitting in your office when you realize the thing you did for the last few days, maybe weeks is a failure?
Terence Tao
Well, for me, I switch to a different problem. So I’m a fox, I’m not a hedgehog.
Well, for me, I switch to a different problem. So I’m a fox, I’m not a hedgehog.
Lex Fridman
But you’re generally, that is a break that you can take, is to step away and look at a different problem?
But you’re generally, that is a break that you can take, is to step away and look at a different problem?
Terence Tao
Yeah, yeah. You can modify the problem too. I mean, you can ask some cheater if there’s a specific thing that’s blocking you that some bad case keeps showing up, that for which your tool doesn’t work. You can just assume by fiat this bad case doesn’t occur. So you do some magical thinking, but strategically okay for the point to see if the rest of the argument goes through. If there’s multiple problems with your approach, then maybe you just give up. But if this is the only problem but everything else checks out, then it’s still worth fighting. So yeah, you have to do some forward reconnaissance sometimes too.
Yeah, yeah. You can modify the problem too. I mean, you can ask some cheater if there’s a specific thing that’s blocking you that some bad case keeps showing up, that for which your tool doesn’t work. You can just assume by fiat this bad case doesn’t occur. So you do some magical thinking, but strategically okay for the point to see if the rest of the argument goes through. If there’s multiple problems with your approach, then maybe you just give up. But if this is the only problem but everything else checks out, then it’s still worth fighting. So yeah, you have to do some forward reconnaissance sometimes too.
Lex Fridman
And that is sometimes productive to assume like, “Okay, we’ll figure it out eventually”?
And that is sometimes productive to assume like, “Okay, we’ll figure it out eventually”?
Terence Tao
Oh, yeah, yeah. Sometimes actually it’s even productive to make mistakes. So one of, there was a project which actually we won some prizes for with four other people. We worked on this PDE problem. Again, actually this blow-off regularity type problem, and it was considered very hard. Jean Bourgiugnon was another Fields mathematist who worked on a special case of this, but he could not solve the general case. And we worked on this problem for two months and we thought we solved it. We had this cute argument that if everything fit, and we were excited, we were planning celebration, to all get together and have champagne or something, and we started writing it up. And one of us, not me actually, but another co-author said, “Oh, in this lemma here, we have to estimate these 13 terms that show up in this expansion.
Oh, yeah, yeah. Sometimes actually it’s even productive to make mistakes. So one of, there was a project which actually we won some prizes for with four other people. We worked on this PDE problem. Again, actually this blow-off regularity type problem, and it was considered very hard. Jean Bourgiugnon was another Fields mathematist who worked on a special case of this, but he could not solve the general case. And we worked on this problem for two months and we thought we solved it. We had this cute argument that if everything fit, and we were excited, we were planning celebration, to all get together and have champagne or something, and we started writing it up. And one of us, not me actually, but another co-author said, “Oh, in this lemma here, we have to estimate these 13 terms that show up in this expansion.
And we estimate 12 of them, but in our notes, I can’t find the estimation of the 13th. Can someone supply that?” And I said, “Sure, I’ll look at this.” Yeah, we didn’t cover it, we completely omitted this term and this term turned out to to be worse than the other 12 terms put together. In fact, we could not estimate this term. And we tried for a few more months and all different permutations, and there was always this one term that we could not control. And so this was very frustrating. But because we had already invested months and months of effort in this already, we stuck at this, which we tried increasingly desperate things and crazy things. And after two years we found an approach that was somewhat different, but quite a bit from our initial strategy, which actually didn’t generate these problematic terms and actually solve the problem.
So we solve the problem after two years, but if we hadn’t had that initial false dawn of nearly solving a problem, we would’ve given up by month two or something and worked on an easier problem. If we had known it would take two years, not sure we would’ve started the project. Sometimes actually having the incorrect, it’s like Columbus struggling in the new world, they had an incorrect measurement of the size of the Earth. He thought he was going to find a new trade route to India, or at least that was how he sold it in his prospectus. I mean, it could be that he actually secretly knew, but.
Lex Fridman
Just from a psychological element, do you have emotional or self-doubt that just overwhelms you in moments like that? Because this stuff, it feels like math is so engrossing that it can break you when you invest so much of yourself in the problem and then it turns out wrong. You could start to… A similar way chess has broken some people.
Just from a psychological element, do you have emotional or self-doubt that just overwhelms you in moments like that? Because this stuff, it feels like math is so engrossing that it can break you when you invest so much of yourself in the problem and then it turns out wrong. You could start to… A similar way chess has broken some people.
Terence Tao
Yeah, I think different mathematicians have different levels of emotional investment in what they do. I mean, I think for some people it’s as a job, you have a problem and if it doesn’t work out, you go on the next one. So the fact that you can always move on to another problem, it reduces the emotional connection. I mean, there are cases, so there are certain problems that are what are called mathematical diseases where just latch onto that one problem and they spend years and years thinking about nothing but that one problem. And maybe their career suffers and so forth, but they say, “Okay, I’ve got this big win. Once I finish this problem, it will make up for all the years of lost opportunity.” I mean, occasionally it works, but I really don’t recommend it for people without the right fortitude.
Yeah, I think different mathematicians have different levels of emotional investment in what they do. I mean, I think for some people it’s as a job, you have a problem and if it doesn’t work out, you go on the next one. So the fact that you can always move on to another problem, it reduces the emotional connection. I mean, there are cases, so there are certain problems that are what are called mathematical diseases where just latch onto that one problem and they spend years and years thinking about nothing but that one problem. And maybe their career suffers and so forth, but they say, “Okay, I’ve got this big win. Once I finish this problem, it will make up for all the years of lost opportunity.” I mean, occasionally it works, but I really don’t recommend it for people without the right fortitude.
So I’ve never been super invested in any one problem. One thing that helps is that we don’t need to call our problems in advance. Well, when we do grant proposals, we say we will study this set of problems, but even though we don’t promise, definitely by five years I will supply a proof of all these things. You promise to make some progress or discover some interesting phenomena. And maybe you don’t solve the problem, but you find some related problem that you can say something new about and that’s a much more feasible task.
Twin Prime Conjecture
Lex Fridman
But I’m sure for you, there’s problems like this. You have made so much progress towards the hardest problems in the history of mathematics. So is there a problem that just haunts you? It sits there in the dark corners, twin prime conjecture, Riemann hypothesis, Goldbach’s conjecture?
But I’m sure for you, there’s problems like this. You have made so much progress towards the hardest problems in the history of mathematics. So is there a problem that just haunts you? It sits there in the dark corners, twin prime conjecture, Riemann hypothesis, Goldbach’s conjecture?
Terence Tao
Twin prime, that sounds… Look, again, I mean, the problems like the Riemann hypothesis, those are so far out of reach.
Twin prime, that sounds… Look, again, I mean, the problems like the Riemann hypothesis, those are so far out of reach.
Lex Fridman
You think so?
You think so?
Terence Tao
Yeah, there’s no even viable stretch. Even if I activate all the cheats that I know of in this book, there’s just still no way to get from A to B. I think it needs a breakthrough in another area of mathematics to happen first and for someone to recognize that it would a useful thing to transport into this problem.
Yeah, there’s no even viable stretch. Even if I activate all the cheats that I know of in this book, there’s just still no way to get from A to B. I think it needs a breakthrough in another area of mathematics to happen first and for someone to recognize that it would a useful thing to transport into this problem.
Lex Fridman
So we should maybe step back for a little bit and just talk about prime numbers.
So we should maybe step back for a little bit and just talk about prime numbers.
Terence Tao
Okay.
Okay.
Lex Fridman
So they’re often referred to as the atoms of mathematics. Can you just speak to the structure that these atoms provide?
So they’re often referred to as the atoms of mathematics. Can you just speak to the structure that these atoms provide?
Terence Tao
So the natural numbers have two basic operations, addition, and multiplication. So if you want to generate the natural numbers, you can do one of two things. You can just start with one and add one to itself over and over again. And that generates you the natural numbers. So additively, they’re very easy to generate one, two, three, four, five. Or you can take the prime number if you want to generate multiplicatively, you can take all the prime numbers, two, three, five, seven and multiply them all together. Together that gives you all the natural numbers except maybe for one. So there are these two separate ways of thinking about the natural numbers from an additive point of view and a multiplicative point of view. And separately, they’re not so bad. So any question about that natural was it only was addition, it’s relatively easy to solve.
So the natural numbers have two basic operations, addition, and multiplication. So if you want to generate the natural numbers, you can do one of two things. You can just start with one and add one to itself over and over again. And that generates you the natural numbers. So additively, they’re very easy to generate one, two, three, four, five. Or you can take the prime number if you want to generate multiplicatively, you can take all the prime numbers, two, three, five, seven and multiply them all together. Together that gives you all the natural numbers except maybe for one. So there are these two separate ways of thinking about the natural numbers from an additive point of view and a multiplicative point of view. And separately, they’re not so bad. So any question about that natural was it only was addition, it’s relatively easy to solve.
And any question that only was multiplication is relatively easy to solve. But what has been frustrating is that you combine the two together and suddenly you get the extremely rich… I mean, we know that there are statements in number theory that are actually as undecidable. There are certain polynomials in some number of variables. Is there a solution in the natural numbers? And the answer depends on an undecidable statement whether the axioms of mathematics are consistent or not. But even the simplest problems that combine something more applicative such as the primes with something additives such as shifting by two, separately we understand both of them well, but if you ask when you shift the prime by two, can you get up? How often can you get another prime? It’s been amazingly hard to relate the two.
Lex Fridman
And we should say that the twin prime conjecture is just that, it pauses that there are infinitely many pairs of prime numbers that differ by two. Now the interesting thing is that you have been very successful at pushing forward the field in answering these complicated questions of this variety. Like you mentioned the Green-Tao Theorem. It proves that prime numbers contain arithmetic progressions of any length.
And we should say that the twin prime conjecture is just that, it pauses that there are infinitely many pairs of prime numbers that differ by two. Now the interesting thing is that you have been very successful at pushing forward the field in answering these complicated questions of this variety. Like you mentioned the Green-Tao Theorem. It proves that prime numbers contain arithmetic progressions of any length.
Terence Tao
Right.
Right.
Lex Fridman
It’s just mind-boggling that you could prove something like that.
It’s just mind-boggling that you could prove something like that.
Terence Tao
Right. Yeah. So what we’ve realized because of this type of research is that different patterns have different levels of indestructibility. What makes the twin prime problem hard is that if you take all the primes in the world, three, five, seven, 11, and so forth, there are some twins in there, 11 and 13 is a twin prime, pair of twin primes and so forth. But you could easily, if you wanted to redact the primes to get rid of these twins. The twins, they’d show up and they’re infinitely many of them, but they’re actually reasonably sparse. There’s not, I mean, initially there’s quite a few, but once you got to the millions, the trillions, they become rarer and rarer. And you could actually just, if someone was given access to the database of primes, you just edit out a few primes here and there.
Right. Yeah. So what we’ve realized because of this type of research is that different patterns have different levels of indestructibility. What makes the twin prime problem hard is that if you take all the primes in the world, three, five, seven, 11, and so forth, there are some twins in there, 11 and 13 is a twin prime, pair of twin primes and so forth. But you could easily, if you wanted to redact the primes to get rid of these twins. The twins, they’d show up and they’re infinitely many of them, but they’re actually reasonably sparse. There’s not, I mean, initially there’s quite a few, but once you got to the millions, the trillions, they become rarer and rarer. And you could actually just, if someone was given access to the database of primes, you just edit out a few primes here and there.
They could make the twin prime conjecture false by just removing 0.01% of the primes or something, just well-chosen to do this. And so you could present a censored database of the primes, which passes all of these statistical tests of the primes. It obeys things like the polynomial theorem and other effects of the primes, but doesn’t contain any twin primes anymore. And this is a real obstacle to the twin-prime conjecture. It means that any proof strategy to actually find twin primes in the actual primes must fail when applied to these slightly edited primes. And so it must be some very subtle, delicate feature of the primes that you can’t just get from aggregate statistical analysis.
Lex Fridman
Okay, so that’s out.
Okay, so that’s out.
Terence Tao
Yeah. On the other hand, progressions has turned out to be much more robust. You can take the primes and you can eliminate 99% of the primes actually, and you can take any 90% you want. And it turns out, and another thing we proved is that you still get arithmetic progressions. Arithmetic progressions are much, they’re like cockroaches.
Yeah. On the other hand, progressions has turned out to be much more robust. You can take the primes and you can eliminate 99% of the primes actually, and you can take any 90% you want. And it turns out, and another thing we proved is that you still get arithmetic progressions. Arithmetic progressions are much, they’re like cockroaches.
Lex Fridman
Of arbitrary length though.
Of arbitrary length though.
Terence Tao
Yes. Yes.
Yes. Yes.
Lex Fridman
That’s crazy.
That’s crazy.
Terence Tao
Yeah.
Yeah.
Lex Fridman
So for people who don’t know, arithmetic progressions is a sequence of numbers that differ by some fixed amount.
So for people who don’t know, arithmetic progressions is a sequence of numbers that differ by some fixed amount.
Terence Tao
Yeah. But it’s again like, it’s an infinite monkey type phenomenon. For any fixed length of your set, you don’t get arbitrary length progressions. You only get quite short progressions.
Yeah. But it’s again like, it’s an infinite monkey type phenomenon. For any fixed length of your set, you don’t get arbitrary length progressions. You only get quite short progressions.
Lex Fridman
But you’re saying twin-prime is not an infinite monkey phenomena. I mean, it’s a very subtle monkey. It’s still an infinite monkey phenomena.
But you’re saying twin-prime is not an infinite monkey phenomena. I mean, it’s a very subtle monkey. It’s still an infinite monkey phenomena.
Terence Tao
Right. Yeah. If the primes were really genuinely random, if the primes were generated by monkeys, then yes, in fact the infinite monkey theorem would-
Right. Yeah. If the primes were really genuinely random, if the primes were generated by monkeys, then yes, in fact the infinite monkey theorem would-
Lex Fridman
Oh, but you’re saying that twin prime, you can’t use the same tools. It doesn’t appear random almost.
Oh, but you’re saying that twin prime, you can’t use the same tools. It doesn’t appear random almost.
Terence Tao
Well, we don’t know. We believe the primes behave like a random set. And so the reason why we care about the twin prime conjecture is a test case for whether we can genuinely confidently say with 0% chance of error that the primes behave like a random set. Random versions of the primes we know contain twins at least with 100% probably, or probably tending to 100% as you go out further and further. So the primes, we believe that they’re random. The reason why arithmetic progressions are indestructible is that regardless of whether it looks random or looks structured like periodic, in both cases the arithmetic progressions appear, but for different reasons. And this is basically all the ways in which the thing was… There are many proofs of this sort of arithmetic progression-type theorems.
Well, we don’t know. We believe the primes behave like a random set. And so the reason why we care about the twin prime conjecture is a test case for whether we can genuinely confidently say with 0% chance of error that the primes behave like a random set. Random versions of the primes we know contain twins at least with 100% probably, or probably tending to 100% as you go out further and further. So the primes, we believe that they’re random. The reason why arithmetic progressions are indestructible is that regardless of whether it looks random or looks structured like periodic, in both cases the arithmetic progressions appear, but for different reasons. And this is basically all the ways in which the thing was… There are many proofs of this sort of arithmetic progression-type theorems.
And they’re all proven by some sort of dichotomy where your set is either structured or random and in both cases you can say something and then you put the two together. But in twin primes, if the primes are random, then you are happy, you win. If the primes are structured, they could be structured in a specific way that eliminates the twins. And we can’t rule out that one conspiracy.
Lex Fridman
And yet you were able to make, as I understand, progress on the K-tuple version
And yet you were able to make, as I understand, progress on the K-tuple version
Terence Tao
Right. Yeah. So the one funny thing about conspiracies is that any one conspiracy theory is really hard to disprove. That if you believe the word is one by lizards is that here’s some evidence that it’s not [inaudible 02:24:32] work, that it was just talked about lizards. You might have encountered this kind of phenomena.
Right. Yeah. So the one funny thing about conspiracies is that any one conspiracy theory is really hard to disprove. That if you believe the word is one by lizards is that here’s some evidence that it’s not [inaudible 02:24:32] work, that it was just talked about lizards. You might have encountered this kind of phenomena.
Lex Fridman
Yes.
Yes.
Terence Tao
There’s almost no way to definitively rule out a conspiracy. And the same is true in mathematics. A conspiracy that is solely devoted to eliminating twin primes, you would have to also infiltrate other areas of mathematics, but it could be made consistent at least as far as we know. But there’s a weird phenomenon that you can make one conspiracy rule out other conspiracies. So if the world is run by lizards, it can’t also be one by aliens, right?
There’s almost no way to definitively rule out a conspiracy. And the same is true in mathematics. A conspiracy that is solely devoted to eliminating twin primes, you would have to also infiltrate other areas of mathematics, but it could be made consistent at least as far as we know. But there’s a weird phenomenon that you can make one conspiracy rule out other conspiracies. So if the world is run by lizards, it can’t also be one by aliens, right?
Lex Fridman
Right.
Right.
Terence Tao
So one unreasonable thing is hard to disprove, but more than one, there are tools. So yeah, so for example, we know there’s infinitely many primes that no two, which… So there are infinite pairs of primes which differ by at most, 246 actually is the code.
So one unreasonable thing is hard to disprove, but more than one, there are tools. So yeah, so for example, we know there’s infinitely many primes that no two, which… So there are infinite pairs of primes which differ by at most, 246 actually is the code.
Lex Fridman
Oh, so there’s like a bound on the-
Oh, so there’s like a bound on the-
Terence Tao
Right. So there’s twin primes, there’s a thing called cousin primes that differ by four. There’s a thing called sexy primes that differ by six.
Right. So there’s twin primes, there’s a thing called cousin primes that differ by four. There’s a thing called sexy primes that differ by six.
Lex Fridman
What are sexy primes?
What are sexy primes?
Terence Tao
Primes that differ by six. The name is much less… It causes much less exciting than the name suggests.
Primes that differ by six. The name is much less… It causes much less exciting than the name suggests.
Lex Fridman
Got it.
Got it.
Terence Tao
So you can make a conspiracy rule out one of these, but once you have 50 of them, it turns out that you can’t rule out all of them at once. It requires too much energy somehow in this conspiracy space.
So you can make a conspiracy rule out one of these, but once you have 50 of them, it turns out that you can’t rule out all of them at once. It requires too much energy somehow in this conspiracy space.
Lex Fridman
How do you do the bound part? How do you develop a bound for the differented team deposit-
How do you do the bound part? How do you develop a bound for the differented team deposit-
Terence Tao
Okay.
Okay.
Lex Fridman
… that there’s an infinite number of?
… that there’s an infinite number of?
Terence Tao
So it’s ultimately based on what’s called the pigeonhole principle. So the pigeonhole principle is a statement that if you have a number of pigeons, and they all have to go into pigeonholes and you have more pigeons than pigeonholes, then one of the pigeonholes has to have at least two pigeons in it. So there has to be two pigeons that are close together. So for instance, if you have 100 numbers and they all range from one to 1,000, two of them have to be at most 10 apart because you can divide up the numbers from one to 100 into 100 pigeonholes. Let’s say if you have 101 numbers. 101 numbers, then two of them have to be a distance less than 10 apart because two of them have to belong to the same pigeonhole. So it’s a basic feature of a basic principle in mathematics.
So it’s ultimately based on what’s called the pigeonhole principle. So the pigeonhole principle is a statement that if you have a number of pigeons, and they all have to go into pigeonholes and you have more pigeons than pigeonholes, then one of the pigeonholes has to have at least two pigeons in it. So there has to be two pigeons that are close together. So for instance, if you have 100 numbers and they all range from one to 1,000, two of them have to be at most 10 apart because you can divide up the numbers from one to 100 into 100 pigeonholes. Let’s say if you have 101 numbers. 101 numbers, then two of them have to be a distance less than 10 apart because two of them have to belong to the same pigeonhole. So it’s a basic feature of a basic principle in mathematics.
So it doesn’t quite work with the primes already because if the primes get sparser and sparser as you go out, that there are fewer and fewer numbers are prime. But it turns out that there’s a way to assign weights to numbers. So there are numbers that are kind of almost prime, but they don’t have no factors at all other than themselves and one. But they have very few factors. And it turns out that we understand almost primes a lot better than primes. And so for example, it was known for a long time that there were twin almost primes. This has been worked out. So almost primes are something we can understand. So you can actually restrict the attention to a suitable set of almost primes. And whereas the primes are very sparse overall relative to the almost primes actually are much less sparse.
You can set up a set of almost primes where the primes have density like say 1%. And that gives you a shot at proving by applying some sort of pigeonhole principle that there’s pairs of primes that are just only 100 apart. But in order to prove the twin prime conjecture, you need to get the density of primes, this having also up to a threshold of 50%. Once you get up to 50%, you will get twin primes. But unfortunately, there are barriers. We know that no matter what kind of good set of almost primes you pick, the density of primes can never get above 50%. It’s what the parity barrier and I would love to fight. So one of my long-term dreams is to find a way to breach that barrier because it would open up not only the twin prime conjecture but the Goldbach conjecture.
And many other problems in number theory are currently blocked because our current techniques would require going beyond this theoretical parity barrier. It’s like going fast as the speed of light.
Lex Fridman
Yeah. So we should say a twin prime conjecture, one of the biggest problems in the history of mathematics. Goldbach conjecture also. They feel like next-door neighbors. Has there been days when you felt you saw the path?
Yeah. So we should say a twin prime conjecture, one of the biggest problems in the history of mathematics. Goldbach conjecture also. They feel like next-door neighbors. Has there been days when you felt you saw the path?
Terence Tao
Oh, yeah. Yeah. Sometimes you try something and it works super well. You again, get the sense of mathematical smell we talked about earlier. You learn from experience when things are going too well because there are certain difficulties that you sort of have to encounter. I think the way of colleague might put it is that if you are on the streets of New York and you’re put in a blindfold and you’re put in a car and after some hours the blindfold is off and then you’re in Beijing. I mean that was too easy somehow. There was no ocean being crossed. Even if you don’t know exactly what was done, you’re suspecting that something wasn’t right.
Oh, yeah. Yeah. Sometimes you try something and it works super well. You again, get the sense of mathematical smell we talked about earlier. You learn from experience when things are going too well because there are certain difficulties that you sort of have to encounter. I think the way of colleague might put it is that if you are on the streets of New York and you’re put in a blindfold and you’re put in a car and after some hours the blindfold is off and then you’re in Beijing. I mean that was too easy somehow. There was no ocean being crossed. Even if you don’t know exactly what was done, you’re suspecting that something wasn’t right.
Lex Fridman
But is that still in the back of your head? Do you return to the prime numbers every once in a while to see?
But is that still in the back of your head? Do you return to the prime numbers every once in a while to see?
Terence Tao
Yeah, when I have nothing better to do, which is less and less. I get busy with so many things these days. But when I have free time and I’m not, I’m too frustrated to work on my real research projects, and I also don’t want to do my administrative stuff or I don’t want to do some errands for my family. I can play with these things for fun. And usually you get nowhere. You have to just say, “Okay, fine. Once again, nothing happened. I will move on.” Very occasionally one of these problems or actually solved. Well, sometimes as you say, you think you solved it and then you forward for maybe 15 minutes and then you think, “I should check this. This is too easy, too good to be true.” And it usually is.
Yeah, when I have nothing better to do, which is less and less. I get busy with so many things these days. But when I have free time and I’m not, I’m too frustrated to work on my real research projects, and I also don’t want to do my administrative stuff or I don’t want to do some errands for my family. I can play with these things for fun. And usually you get nowhere. You have to just say, “Okay, fine. Once again, nothing happened. I will move on.” Very occasionally one of these problems or actually solved. Well, sometimes as you say, you think you solved it and then you forward for maybe 15 minutes and then you think, “I should check this. This is too easy, too good to be true.” And it usually is.
Lex Fridman
What’s your gut say about when these problems would be solved, the twin prime and Goldbach?
What’s your gut say about when these problems would be solved, the twin prime and Goldbach?
Terence Tao
The twin prime, I’ll think we’ll-
The twin prime, I’ll think we’ll-
Lex Fridman
10 years?
10 years?
Terence Tao
… keep getting more partial results. It does need at least one… This parity barrier is the biggest remaining obstacle. There are simpler versions of the conjecture where we are getting really close. So I think in 10 years we will have many more much closer results, we may not have the whole thing. So twin primes is somewhat close. The Riemann hypothesis I have no clue. It has happened by accident I think.
… keep getting more partial results. It does need at least one… This parity barrier is the biggest remaining obstacle. There are simpler versions of the conjecture where we are getting really close. So I think in 10 years we will have many more much closer results, we may not have the whole thing. So twin primes is somewhat close. The Riemann hypothesis I have no clue. It has happened by accident I think.
Lex Fridman
So the Riemann hypothesis is a kind of more general conjecture about the distribution of prime numbers, right?
So the Riemann hypothesis is a kind of more general conjecture about the distribution of prime numbers, right?
Terence Tao
Right. Yeah. It’s states that sort of viewed multiplicatively, for questions only involving multiplication, no addition. The primes really do behave as randomly as you could hope. So there’s a phenomenon in probability called square root cancellation that if you want to poll, say America on some issue, and you ask one or two voters and you may have sampled a bad sample, and then you get a really imprecise measurement of the full average. But if you sample more and more people, the accuracy gets better and better. And it accuracy improves the square root of the number of people you sample. So if you sample 1, 000 people, you can get a 2 or 3% margin of error. So in the same sense, if you measure the primes in a certain multiplicative sense, there’s a certain type of statistic you can measure and it’s called the Riemann’s data function, and it fluctuates up and down.
Right. Yeah. It’s states that sort of viewed multiplicatively, for questions only involving multiplication, no addition. The primes really do behave as randomly as you could hope. So there’s a phenomenon in probability called square root cancellation that if you want to poll, say America on some issue, and you ask one or two voters and you may have sampled a bad sample, and then you get a really imprecise measurement of the full average. But if you sample more and more people, the accuracy gets better and better. And it accuracy improves the square root of the number of people you sample. So if you sample 1, 000 people, you can get a 2 or 3% margin of error. So in the same sense, if you measure the primes in a certain multiplicative sense, there’s a certain type of statistic you can measure and it’s called the Riemann’s data function, and it fluctuates up and down.
But in some sense, as you keep averaging more and more, if you sample more and more, the fluctuation should go down as if they were random. And there’s a very precise way to quantify that. And the Riemann hypothesis is a very elegant way that captures this. But as with many other ways in mathematics, we have very few tools to show that something really genuinely behaves really random. And this is actually not just a little bit random, but it’s asking that it behaves as random as it actually random set, this square root cancellation. And we know because of things related to the parity problem actually, that most of us’ usual techniques cannot hope to settle this question. The proof has to come out of left field. But what that is, no one has any serious proposal. And there’s various ways to solve. As I said, you can modify the primes a little bit and you can destroy the Riemann hypothesis.
So it has to be very delicate. You can’t apply something that has huge margins of error. It has to just barely work. And there’s all these pitfalls that you dodge very adeptly.
Lex Fridman
The prime numbers is just fascinating.
The prime numbers is just fascinating.
Terence Tao
Yeah. Yeah, yeah.
Yeah. Yeah, yeah.
Lex Fridman
What to you is most mysterious about the prime numbers?
What to you is most mysterious about the prime numbers?
Terence Tao
That’s a good question. Conjecturally, we have a good model of them. I mean, as I said, I mean they have certain patterns, like the primes are usually odd, for instance. But apart from there’s some obvious patterns, they behave very randomly and just assuming that they behave. So there’s something called the Kramer random model of the primes that after a certain point, primes just behave like a random set. And there’s various slight modifications to this model. But this has been a very good model. It matches the numerics. It tells us what to predict. I can tell you with complete certainty the twin prime conjecture is true. The random model gives overwhelming odds it is true, I just can’t prove it. Most of our mathematics is optimized for solving things with patterns in them.
That’s a good question. Conjecturally, we have a good model of them. I mean, as I said, I mean they have certain patterns, like the primes are usually odd, for instance. But apart from there’s some obvious patterns, they behave very randomly and just assuming that they behave. So there’s something called the Kramer random model of the primes that after a certain point, primes just behave like a random set. And there’s various slight modifications to this model. But this has been a very good model. It matches the numerics. It tells us what to predict. I can tell you with complete certainty the twin prime conjecture is true. The random model gives overwhelming odds it is true, I just can’t prove it. Most of our mathematics is optimized for solving things with patterns in them.
And the primes have this anti-pattern, as do almost everything really, but we can’t prove that. I guess it’s not mysterious that the primes be random because there’s no reason for them to have any kind of secret pattern. But what is mysterious is what is the mechanism that really forces the randomness to happen? This is just absent.
Collatz conjecture
Lex Fridman
Another incredibly surprisingly difficult problem is the Collatz conjecture.
Another incredibly surprisingly difficult problem is the Collatz conjecture.
Terence Tao
Oh yes.
Oh yes.
Lex Fridman
Simple to state, beautiful to visualize in it simplicity and yet extremely difficult to solve. And yet you have been able to make progress. Paul Erdos said about the Collatz conjecture that mathematics may not be ready for such problems. Others have stated that it is an extraordinarily difficult problem, completely out of reach, this is in 2010, out of reach of present-day mathematics, and yet you have made some progress. Why is it so difficult to make? Can you actually even explain what it is, is the key to-
Simple to state, beautiful to visualize in it simplicity and yet extremely difficult to solve. And yet you have been able to make progress. Paul Erdos said about the Collatz conjecture that mathematics may not be ready for such problems. Others have stated that it is an extraordinarily difficult problem, completely out of reach, this is in 2010, out of reach of present-day mathematics, and yet you have made some progress. Why is it so difficult to make? Can you actually even explain what it is, is the key to-
Terence Tao
Oh, yeah. So it’s a problem that you can explain. It helps with some visual aids. But yeah, so you take any natural number, like say 13, and you apply the following procedure to it. So if it’s even, you divide it by two, and if it’s odd, you multiply it by three and add one. So even numbers get smaller, odd numbers get bigger. So 13 would become 40 because 13 times 3 is 39, add one you get 40. So it’s a simple process. For odd numbers and even numbers, they’re both very easy operations. And then you put it together, it’s still reasonably simple. But then you ask what happens when you iterate it? You take the output that you just got and feed it back in. So 13 becomes 40, 40 is now even divide by two is 20. 20 is still even divide by 2, 10, five, and then five times three plus one is 16, and then eight, four, two, one. And then from one it goes one, four, two, one, four, two, one. It cycles forever. So this sequence I just described, 13, 40, 20, 10, so both, these are what is known hailstorm sequences, because there’s an oversimplified model of hailstorm formation which is not actually quite correct but it’s still somehow taught to high school students as a first approximation, is that a little nugget of ice gets an ice crystal forms and clouded. It goes up and down because of the wind. And sometimes when it’s cold it acquires a bit more mass and maybe it melts a little bit. And this process of going up and down creates this partially melted ice which eventually causes hailstorm, and eventually it falls down to the earth. So the conjecture is that no matter how high you start up, you take a number which is in the millions or billions, this process that goes up, if you are odd and down, it eventually comes down to Earth all the time.
Oh, yeah. So it’s a problem that you can explain. It helps with some visual aids. But yeah, so you take any natural number, like say 13, and you apply the following procedure to it. So if it’s even, you divide it by two, and if it’s odd, you multiply it by three and add one. So even numbers get smaller, odd numbers get bigger. So 13 would become 40 because 13 times 3 is 39, add one you get 40. So it’s a simple process. For odd numbers and even numbers, they’re both very easy operations. And then you put it together, it’s still reasonably simple. But then you ask what happens when you iterate it? You take the output that you just got and feed it back in. So 13 becomes 40, 40 is now even divide by two is 20. 20 is still even divide by 2, 10, five, and then five times three plus one is 16, and then eight, four, two, one. And then from one it goes one, four, two, one, four, two, one. It cycles forever. So this sequence I just described, 13, 40, 20, 10, so both, these are what is known hailstorm sequences, because there’s an oversimplified model of hailstorm formation which is not actually quite correct but it’s still somehow taught to high school students as a first approximation, is that a little nugget of ice gets an ice crystal forms and clouded. It goes up and down because of the wind. And sometimes when it’s cold it acquires a bit more mass and maybe it melts a little bit. And this process of going up and down creates this partially melted ice which eventually causes hailstorm, and eventually it falls down to the earth. So the conjecture is that no matter how high you start up, you take a number which is in the millions or billions, this process that goes up, if you are odd and down, it eventually comes down to Earth all the time.
Lex Fridman
No matter where you start with very simple algorithm, you end up at one. And you might climb for a while-
No matter where you start with very simple algorithm, you end up at one. And you might climb for a while-
Terence Tao
Right.
Right.
Lex Fridman
… you come down.
… you come down.
Terence Tao
Yeah. So yeah, if you plotted these sequences, they look like Brownian motion. They look like the stock market. They just go up and down in a seemingly random pattern. And in fact, usually that’s what happens, that if you plug in a random number, you can actually prove, at least initially, that it would look like a random walk. And that’s actually a random walk with a downward drift. It’s like if you are always gambling on a roulette at the casino with odds slightly weighted against you. So sometimes you win, sometimes you lose. But over in the long run, you lose a bit more than you win. And so normally your wallet will go to zero if you just keep playing over and over again.
Yeah. So yeah, if you plotted these sequences, they look like Brownian motion. They look like the stock market. They just go up and down in a seemingly random pattern. And in fact, usually that’s what happens, that if you plug in a random number, you can actually prove, at least initially, that it would look like a random walk. And that’s actually a random walk with a downward drift. It’s like if you are always gambling on a roulette at the casino with odds slightly weighted against you. So sometimes you win, sometimes you lose. But over in the long run, you lose a bit more than you win. And so normally your wallet will go to zero if you just keep playing over and over again.
Lex Fridman
So statistically it makes sense that we go here?
So statistically it makes sense that we go here?
Terence Tao
Yes. So the result that I proved roughly speaking such that statistically like 99% of all inputs would drift down to maybe not all the way to one, but to be much, much smaller than what you started. So it’s like if I told you that if you go to a casino, most of the time you end up, if you keep playing it for long enough, you end up with a smaller amount in your wallet then when you started. That’s kind of like the result that I proved.
Yes. So the result that I proved roughly speaking such that statistically like 99% of all inputs would drift down to maybe not all the way to one, but to be much, much smaller than what you started. So it’s like if I told you that if you go to a casino, most of the time you end up, if you keep playing it for long enough, you end up with a smaller amount in your wallet then when you started. That’s kind of like the result that I proved.
Lex Fridman
So why is that result… Can you continue down that thread to prove the full conjecture?
So why is that result… Can you continue down that thread to prove the full conjecture?
Terence Tao
Well, the problem is that I used arguments from probability theory, and there’s always this exceptional event. So in probability, we have this law of large numbers, which tells you things like if you play a casino with a game at a casino with a losing expectation over time you are guaranteed, almost surely with probability as close to 100% as you wish, you’re guaranteed to lose money. But there’s always this exceptional outlier. It is mathematically possible that even in the game is the odds are not in favor, you could just keep winning slightly more often than you lose. Very much like how in Navier-Stokes it could be, most of the time your waves can disperse, there could be just one outlier choice of initial conditions that would lead you to blow up. And there could be one outlier choice of a special number they stick in that shoots off infinity while all other numbers crash to Earth, crash to one.
Well, the problem is that I used arguments from probability theory, and there’s always this exceptional event. So in probability, we have this law of large numbers, which tells you things like if you play a casino with a game at a casino with a losing expectation over time you are guaranteed, almost surely with probability as close to 100% as you wish, you’re guaranteed to lose money. But there’s always this exceptional outlier. It is mathematically possible that even in the game is the odds are not in favor, you could just keep winning slightly more often than you lose. Very much like how in Navier-Stokes it could be, most of the time your waves can disperse, there could be just one outlier choice of initial conditions that would lead you to blow up. And there could be one outlier choice of a special number they stick in that shoots off infinity while all other numbers crash to Earth, crash to one.
In fact, there’s some mathematicians who, Alex Kontorovich for instance, who’ve proposed that actually these collapse iterations are like these similar Automator. Actually, if you look at what they happen in binary, they do actually look a little bit like these game of life type patterns. And in analogy to how the game of life can create these massive self-replicating objects and so forth, possibly you could create some sort of heavier-than-air flying machine. A number which is actually encoding this machine, which is just whose job it’s to encode, is to create a version of something which is larger.
Lex Fridman
Heavier-than-air machine encoded in a number-
Heavier-than-air machine encoded in a number-
Terence Tao
Yeah.
Yeah.
Lex Fridman
… that flies forever.
… that flies forever.
Terence Tao
So Conway in fact, worked on this problem as well.
So Conway in fact, worked on this problem as well.
Lex Fridman
Oh wow.
Oh wow.
Terence Tao
Conway, so similar, in fact, that was more on inspirations for the Navier-Stokes project. Conway studied generalizations of the collapse problem where instead of multiplying by three and adding one or dividing by two, you have more complicated branching list. But instead of having two cases, maybe you have 17 cases and then you go up and down. And he showed that once your iteration gets complicated enough, you can actually encode Turing machines and you can actually make these problems undecidable and do things like this. In fact, he invented a programming language for these kind of fractional linear transformations. He called it frac-trat as a play on full-trat. And he showed that you can program, it was Turing-complete, you could make a program that if your number you insert in was encoded as a prime, it would sink to zero.
Conway, so similar, in fact, that was more on inspirations for the Navier-Stokes project. Conway studied generalizations of the collapse problem where instead of multiplying by three and adding one or dividing by two, you have more complicated branching list. But instead of having two cases, maybe you have 17 cases and then you go up and down. And he showed that once your iteration gets complicated enough, you can actually encode Turing machines and you can actually make these problems undecidable and do things like this. In fact, he invented a programming language for these kind of fractional linear transformations. He called it frac-trat as a play on full-trat. And he showed that you can program, it was Turing-complete, you could make a program that if your number you insert in was encoded as a prime, it would sink to zero.
It would go down, otherwise it would go up and things like that. So the general class of problems is really as complicated as all the mathematics.
Lex Fridman
Some of the mystery of the cellular automata that we talked about, having a mathematical framework to say anything about cellular automata, maybe this same kind of framework is required. Yeah, Goldbach’s conjecture.
Some of the mystery of the cellular automata that we talked about, having a mathematical framework to say anything about cellular automata, maybe this same kind of framework is required. Yeah, Goldbach’s conjecture.
Terence Tao
Yeah. If you want to do it, not statistically, but you really want 100% of all inputs to for the earth. Yeah. So what might be feasible is, yeah, statistically 99% go to one, but everything, that looks hard.
Yeah. If you want to do it, not statistically, but you really want 100% of all inputs to for the earth. Yeah. So what might be feasible is, yeah, statistically 99% go to one, but everything, that looks hard.
P = NP
Lex Fridman
What would you say is out of these within reach famous problems is the hardest problem we have today? Is it the Riemann hypothesis?
What would you say is out of these within reach famous problems is the hardest problem we have today? Is it the Riemann hypothesis?
Terence Tao
Well, it’s up there. P equals NP is a good one because that’s a meta problem. If you solve that in the positive sense that you can find a P equals NP algorithm, potentially, this solves a lot of other problems as well.
Well, it’s up there. P equals NP is a good one because that’s a meta problem. If you solve that in the positive sense that you can find a P equals NP algorithm, potentially, this solves a lot of other problems as well.
Lex Fridman
And we should mention some of the conjectures we’ve been talking about. A lot of stuff is built on top of them now. There’s ripple effects. P equals NP has more ripple effects than basically any other-
And we should mention some of the conjectures we’ve been talking about. A lot of stuff is built on top of them now. There’s ripple effects. P equals NP has more ripple effects than basically any other-
Terence Tao
Right. If the Riemann hypothesis is disproven, that’d be a big mental shock to the number theorists. But it would have follow-on effects for cryptography, because a lot of cryptography uses number theory, uses number-theory constructions involving primes and so forth. And it relies very much on the intuition that number-theories are built over many, many years of what operations involving primes behave randomly and what ones don’t? And in particular, encryption methods are designed to turn text-written information on it into text, which is indistinguishable from random noise. And hence, we believe to be almost impossible to crack, at least mathematically. But if something has caught our beliefs as the Riemann hypothesis is wrong, it means that there are actual patterns of the primes that we’re not aware of.
Right. If the Riemann hypothesis is disproven, that’d be a big mental shock to the number theorists. But it would have follow-on effects for cryptography, because a lot of cryptography uses number theory, uses number-theory constructions involving primes and so forth. And it relies very much on the intuition that number-theories are built over many, many years of what operations involving primes behave randomly and what ones don’t? And in particular, encryption methods are designed to turn text-written information on it into text, which is indistinguishable from random noise. And hence, we believe to be almost impossible to crack, at least mathematically. But if something has caught our beliefs as the Riemann hypothesis is wrong, it means that there are actual patterns of the primes that we’re not aware of.
And if there’s one, there’s probably going to be more. And suddenly a lot of our crypto systems are in doubt.
Lex Fridman
Yeah. But then how do you then say stuff about the primes-
Yeah. But then how do you then say stuff about the primes-
Terence Tao
Yeah.
Yeah.
Lex Fridman
… that you’re going towards because of the Collatz conjecture again? Because, do you want it to be random, right?
… that you’re going towards because of the Collatz conjecture again? Because, do you want it to be random, right?
Terence Tao
Yes.
Yes.
Lex Fridman
You want it to be random?
You want it to be random?
Terence Tao
Yeah. So more broadly, I’m just looking for more tools, more ways to show that things are random. How do you prove a conspiracy doesn’t happen?
Yeah. So more broadly, I’m just looking for more tools, more ways to show that things are random. How do you prove a conspiracy doesn’t happen?
Lex Fridman
Right. Is there any chance to you that P equals NP? Can you imagine a possible universe?
Right. Is there any chance to you that P equals NP? Can you imagine a possible universe?
Terence Tao
It is possible. I mean, there’s various scenarios. I mean, there’s one where it is technically possible, but in fact it’s never actually implementable. The evidence is sort of slightly pushing in favor of no, that probably P is not a good NP.
It is possible. I mean, there’s various scenarios. I mean, there’s one where it is technically possible, but in fact it’s never actually implementable. The evidence is sort of slightly pushing in favor of no, that probably P is not a good NP.
Lex Fridman
I mean, it seems like it’s one of those cases similar to Riemann hypothesis. I think the evidence is leaning pretty heavily on the no.
I mean, it seems like it’s one of those cases similar to Riemann hypothesis. I think the evidence is leaning pretty heavily on the no.
Terence Tao
Certainly more on the no than on the yes. The funny thing about P equals NP is that we have also a lot more obstructions than we do for almost any other problem. So while there’s evidence, we also have a lot of results ruling out many, many types of approaches to the problem. This is the one thing that the computer science has actually been very good at. It’s actually saying that certain approaches cannot work. No-go theorems. It could be undecidable, yeah, we don’t know.
Certainly more on the no than on the yes. The funny thing about P equals NP is that we have also a lot more obstructions than we do for almost any other problem. So while there’s evidence, we also have a lot of results ruling out many, many types of approaches to the problem. This is the one thing that the computer science has actually been very good at. It’s actually saying that certain approaches cannot work. No-go theorems. It could be undecidable, yeah, we don’t know.
Fields Medal
Lex Fridman
There’s a funny story I read that when you won the Fields Medal, somebody from the internet wrote you and asked, what are you going to do now that you’ve won this prestigious award? And then you just quickly, very humbly said that a shiny metal is not going to solve any of the problem I’m currently working on, so I’m going to keep working on them. First of all, it’s funny to me that you would answer an email in that context, and second of all, it just shows your humility. But anyway, maybe you could speak to the Fields Medal, but it’s another way for me to ask about Gregorio Perlman. What do you think about him famously declining the Fields Medal and the Millennial Prize, which came with a $1 million of prize money. He stated that, “I’m not interested in money or fame. The prize is completely irrelevant for me. If the proof is correct, then no other recognition is needed.”
There’s a funny story I read that when you won the Fields Medal, somebody from the internet wrote you and asked, what are you going to do now that you’ve won this prestigious award? And then you just quickly, very humbly said that a shiny metal is not going to solve any of the problem I’m currently working on, so I’m going to keep working on them. First of all, it’s funny to me that you would answer an email in that context, and second of all, it just shows your humility. But anyway, maybe you could speak to the Fields Medal, but it’s another way for me to ask about Gregorio Perlman. What do you think about him famously declining the Fields Medal and the Millennial Prize, which came with a $1 million of prize money. He stated that, “I’m not interested in money or fame. The prize is completely irrelevant for me. If the proof is correct, then no other recognition is needed.”
Terence Tao
Yeah, no, he’s somewhat of an outlier, even among mathematicians who tend to have somewhat idealistic views. I’ve never met him. I think I’d be interested to meet him one day, but I’ve never had the chance. I know people who met him. He’s always had strong views about certain things. I mean, it’s not like he was completely isolated from the math community. I mean, he would give talks and write papers and so forth, but at some point he just decided not.
Yeah, no, he’s somewhat of an outlier, even among mathematicians who tend to have somewhat idealistic views. I’ve never met him. I think I’d be interested to meet him one day, but I’ve never had the chance. I know people who met him. He’s always had strong views about certain things. I mean, it’s not like he was completely isolated from the math community. I mean, he would give talks and write papers and so forth, but at some point he just decided not.
Terence Tao
… He talks and write papers and so forth, but at some point he just decided not to engage with the rest of the community. He was disillusioned or something, I don’t know. And he decided to peace out and collect mushrooms in St. Petersburg or something. And that’s fine, you can do that. That’s another sort of flip side. A lot of our problems that we solve, some of them do have practical application and that’s great. But if you stop thinking about a problem, so he hasn’t published since in this field, but that’s fine. There’s many, many other people who’ve done so as well.
… He talks and write papers and so forth, but at some point he just decided not to engage with the rest of the community. He was disillusioned or something, I don’t know. And he decided to peace out and collect mushrooms in St. Petersburg or something. And that’s fine, you can do that. That’s another sort of flip side. A lot of our problems that we solve, some of them do have practical application and that’s great. But if you stop thinking about a problem, so he hasn’t published since in this field, but that’s fine. There’s many, many other people who’ve done so as well.
Yeah. So I guess one thing I didn’t realize initially with the Fields Medal is that it sort of makes you part of the establishment. So most mathematicians, just career mathematicians, you just focus on publishing the next paper, maybe promote it one rank, and starting a few projects, may have taken some students or something. But then suddenly people want your opinion on things and you have to think a little bit about things that you might just foolishly say, because you know no one’s going to listen to you, it’s more important now.
Lex Fridman
Is it constraining to you? Are you able to still have fun and be a rebel and try crazy stuff and play with ideas?
Is it constraining to you? Are you able to still have fun and be a rebel and try crazy stuff and play with ideas?
Terence Tao
I have a lot less free time than I had previously, mostly by choice. I always say I have the option to sort of decline, so I decline a lot of things. I could decline even more or I could acquire a reputation of being so unreliable that people don’t even ask anymore.
I have a lot less free time than I had previously, mostly by choice. I always say I have the option to sort of decline, so I decline a lot of things. I could decline even more or I could acquire a reputation of being so unreliable that people don’t even ask anymore.
Lex Fridman
I love the different algorithms here. This is great.
I love the different algorithms here. This is great.
Terence Tao
It’s always an option, but there are things that I don’t spend as much time as I do as a postdoc, just working on one problem at a time or fooling around. I still do that a little bit. But yeah, as you advance in your career, the more soft skills, so math somehow front-loads all the technical skills to the early stages of your career. So as a postdoc, you publish or perish. You’re incentivized to basically focus on proving very technical theorems, so prove yourself as well as prove the algorithms. But then as you get more senior, you have to start mentoring and giving interviews and trying to shape direction of field both research-wise and sometimes you have to do various administrative things. And it’s kind the right social contract because you need to work in the trenches to see what can help mathematicians.
It’s always an option, but there are things that I don’t spend as much time as I do as a postdoc, just working on one problem at a time or fooling around. I still do that a little bit. But yeah, as you advance in your career, the more soft skills, so math somehow front-loads all the technical skills to the early stages of your career. So as a postdoc, you publish or perish. You’re incentivized to basically focus on proving very technical theorems, so prove yourself as well as prove the algorithms. But then as you get more senior, you have to start mentoring and giving interviews and trying to shape direction of field both research-wise and sometimes you have to do various administrative things. And it’s kind the right social contract because you need to work in the trenches to see what can help mathematicians.
Lex Fridman
The other side of the establishment, the really positive thing is that you get to be a light that’s an inspiration to a lot of young mathematicians or young people that are just interested in mathematics. It’s like-
The other side of the establishment, the really positive thing is that you get to be a light that’s an inspiration to a lot of young mathematicians or young people that are just interested in mathematics. It’s like-
Terence Tao
Yeah, yeah.
Yeah, yeah.
Lex Fridman
… just how the human mind works. This is where I would probably say that I like the Fields Medal, that it does inspire a lot of young people somehow. This is just how human brains work. At the same time, I also want to give sort of respect to somebody like Grigori Perlman, who is critical of awards. In his mind, those are his principles and any human that’s able for their principles to do the thing that most humans would not be able to do, it’s beautiful to see.
… just how the human mind works. This is where I would probably say that I like the Fields Medal, that it does inspire a lot of young people somehow. This is just how human brains work. At the same time, I also want to give sort of respect to somebody like Grigori Perlman, who is critical of awards. In his mind, those are his principles and any human that’s able for their principles to do the thing that most humans would not be able to do, it’s beautiful to see.
Terence Tao
Some recognition is necessary and important, but yeah, it’s also important to not let these things take over your life and only be concerned about getting the next big award or whatever. So again, you see these people try to only solve really big math problems and not work on things that are less sexy, if you wish, but actually still interesting and instructive. As you say, the way the human mind works, we understand things better when they’re attached to humans, and also if they’re attached to a small number of humans. The way our human mind is wired, we can comprehend the relationships between 10 or 20 people. But once you get beyond like 100 people, there’s a limit, I think there’s a name for it, beyond which it just becomes the other.
Some recognition is necessary and important, but yeah, it’s also important to not let these things take over your life and only be concerned about getting the next big award or whatever. So again, you see these people try to only solve really big math problems and not work on things that are less sexy, if you wish, but actually still interesting and instructive. As you say, the way the human mind works, we understand things better when they’re attached to humans, and also if they’re attached to a small number of humans. The way our human mind is wired, we can comprehend the relationships between 10 or 20 people. But once you get beyond like 100 people, there’s a limit, I think there’s a name for it, beyond which it just becomes the other.
And so you have to simplify the [inaudible 02:49:21] 99.9% of humanity becomes the other. Often these models are incorrect, and this causes all kinds of problems. So yeah, to humanize a subject, if you identify a small number of people and say these are representative people of a subject, role models, for example, that has some role, but it can also be too much of it can be harmful because I’ll be the first to say that my own career path is not that of a typical mathematician. The very accelerated education, I skipped a lot of classes. I think I always had very fortunate mentoring opportunities, and I think I was at the right place at the right time. Just because someone doesn’t have my trajectory, it doesn’t mean that they can’t be good mathematicians. They would be, but in a very different style, and we need people of a different style.
And sometimes too much focus is given on the person who does the last step to complete a project in mathematics or elsewhere that’s really taken centuries or decades with lots and lots of, building on lots of previous work. But that’s a story that’s difficult to tell if you’re not an expert. It’s easier to just say one person did this one thing. It makes for a much simpler history.
Lex Fridman
I think on the whole, it is a hugely positive thing. To talk about Steve Jobs as a representative of Apple, when I personally know and of course everybody knows the incredible design, the incredible engineering teams, just the individual humans on those teams. They’re not a team. They’re individual humans on a team, and there’s a lot of brilliance there, but it’s just a nice shorthand, like π, Steve Jobs, π.
I think on the whole, it is a hugely positive thing. To talk about Steve Jobs as a representative of Apple, when I personally know and of course everybody knows the incredible design, the incredible engineering teams, just the individual humans on those teams. They’re not a team. They’re individual humans on a team, and there’s a lot of brilliance there, but it’s just a nice shorthand, like π, Steve Jobs, π.
Terence Tao
Yeah, as a starting point, as a first approximation that’s how you-
Yeah, as a starting point, as a first approximation that’s how you-
Lex Fridman
And then read some biographies and then look into much deeper first approximation.
And then read some biographies and then look into much deeper first approximation.
Andrew Wiles and Fermat’s Last Theorem
Terence Tao
Yeah.
Yeah.
Lex Fridman
That’s right. So you mentioned you were at Princeton too. Andrew Wiles at that time-
That’s right. So you mentioned you were at Princeton too. Andrew Wiles at that time-
Terence Tao
Oh yeah.
Oh yeah.
Lex Fridman
… he was a professor there. It’s a funny moment how history is just all interconnected, and at that time, he announced that he proved Fermat’s Last Theorem. What did you think, maybe looking back now with more context about that moment in math history?
… he was a professor there. It’s a funny moment how history is just all interconnected, and at that time, he announced that he proved Fermat’s Last Theorem. What did you think, maybe looking back now with more context about that moment in math history?
Terence Tao
Yeah, so I was a graduate student at the time. I vaguely remember there was press attention and we all had the same, we had pigeonholes in the same mail room, so we all got mail and suddenly Andrew Wiles’ mailbox exploded to be overflowing.
Yeah, so I was a graduate student at the time. I vaguely remember there was press attention and we all had the same, we had pigeonholes in the same mail room, so we all got mail and suddenly Andrew Wiles’ mailbox exploded to be overflowing.
Lex Fridman
That’s a good metric.
That’s a good metric.
Terence Tao
Yeah. We all talked about it at tea and so forth. We didn’t understand. Most of us sort of didn’t understand the proof. We understand high level details. In fact, there’s an ongoing project to formalize it in Lean. Kevin Buzzard is actually-
Yeah. We all talked about it at tea and so forth. We didn’t understand. Most of us sort of didn’t understand the proof. We understand high level details. In fact, there’s an ongoing project to formalize it in Lean. Kevin Buzzard is actually-
Lex Fridman
Yeah. Can we take that small tangent? How difficult is that ’cause as I understand the proof for Fermat’s Last Theorem has super complicated objects?
Yeah. Can we take that small tangent? How difficult is that ’cause as I understand the proof for Fermat’s Last Theorem has super complicated objects?
Terence Tao
Yeah.
Yeah.
Lex Fridman
It’s really difficult to formalize now.
It’s really difficult to formalize now.
Terence Tao
Yeah, I guess. Yeah, you’re right. The objects that they use, you can define them. So they’ve been defined in Lean, so just defining what they are can be done. That’s really not trivial, but it’s been done. But there’s a lot of really basic facts about these objects that have taken decades to prove in all these different math papers. And so lots of these have to formalized as well. Kevin Buzzard’s goal, actually he has a five-year grant to formalize Fermat’s Last Theorem, and his aim is that he doesn’t think he will be able to get all the way down to the basic axioms, but he wants to formalize it to the point where the only things that he needs to rely on is black boxes, are things that were known by 1980 to a number of theorists at the time, and then some other person or some other work would have to be done to get from there.
Yeah, I guess. Yeah, you’re right. The objects that they use, you can define them. So they’ve been defined in Lean, so just defining what they are can be done. That’s really not trivial, but it’s been done. But there’s a lot of really basic facts about these objects that have taken decades to prove in all these different math papers. And so lots of these have to formalized as well. Kevin Buzzard’s goal, actually he has a five-year grant to formalize Fermat’s Last Theorem, and his aim is that he doesn’t think he will be able to get all the way down to the basic axioms, but he wants to formalize it to the point where the only things that he needs to rely on is black boxes, are things that were known by 1980 to a number of theorists at the time, and then some other person or some other work would have to be done to get from there.
So it’s a different area of mathematics than the type of mathematics I’m used to. In analysis, which is my area, the objects we study are kind of much closer to the ground. I study things like prime numbers and functions and things that are within scope of a high school math education to at least define. But then, there’s this very advanced algebraic side of number theory where people have been building structures upon structures for quite a while, and it’s a very sturdy structure. It’s been very… At the base, at least it’s extremely well-developed with textbooks and so forth. But it does get to the point where if you haven’t taken these years of study and you want to ask about what is going on at level six of this tower, you have to spend quite a bit of time before they can even get to the point where you can see something that you recognize.
Lex Fridman
What inspires you about his journey that was similar, as we talked about, seven years mostly working in secret?
What inspires you about his journey that was similar, as we talked about, seven years mostly working in secret?
Terence Tao
Yeah, so it kind of fits with the romantic image I think people have of mathematicians to the extent that they think of them all as these kind of eccentric wizards or something. So that’s certainly kind of accentuated that perspective. It is a great achievement. His style of solving problems is so different from my own, which is great. We need people like that.
Yeah, so it kind of fits with the romantic image I think people have of mathematicians to the extent that they think of them all as these kind of eccentric wizards or something. So that’s certainly kind of accentuated that perspective. It is a great achievement. His style of solving problems is so different from my own, which is great. We need people like that.
Lex Fridman
Can you speak to it, like in terms of you like the collaborative?
Can you speak to it, like in terms of you like the collaborative?
Terence Tao
I like moving on from a problem if it’s giving too much difficulty.
I like moving on from a problem if it’s giving too much difficulty.
Lex Fridman
Got it.
Got it.
Terence Tao
But you need the people who have the tenacity and the fearlessness. I’ve collaborated with people like that where I want to give up ’cause the first approach that we tried didn’t work and the second one didn’t work. But they’re convinced and they have third, fourth, and the fifth, which works. And I’d have to eat my words, “Okay. I didn’t think this was going to work, but yes, you were right all along.”
But you need the people who have the tenacity and the fearlessness. I’ve collaborated with people like that where I want to give up ’cause the first approach that we tried didn’t work and the second one didn’t work. But they’re convinced and they have third, fourth, and the fifth, which works. And I’d have to eat my words, “Okay. I didn’t think this was going to work, but yes, you were right all along.”
Productivity
Lex Fridman
And we should say for people who don’t know, not only are you known for the brilliance of your work, but the incredible productivity, just the number of papers, which are all very high quality. So there’s something to be said about being able to jump from topic to topic.
And we should say for people who don’t know, not only are you known for the brilliance of your work, but the incredible productivity, just the number of papers, which are all very high quality. So there’s something to be said about being able to jump from topic to topic.
Terence Tao
Yeah, it works for me. But there are also people who are very productive and they focus very deeply. I think everyone has to find their own workflow. One thing which is a shame in mathematics is that mathematics has a sort a one-size-fits-all approach to teaching mathematics, and so we have a certain curriculum and so forth. Maybe if you do math competitions or something, you get a slightly different experience. But I think many people, they don’t find their native math language until very late or usually too late. So they stop doing mathematics and they have a bad experience with a teacher who’s trying to teach them one way to do mathematics that they don’t like it.
Yeah, it works for me. But there are also people who are very productive and they focus very deeply. I think everyone has to find their own workflow. One thing which is a shame in mathematics is that mathematics has a sort a one-size-fits-all approach to teaching mathematics, and so we have a certain curriculum and so forth. Maybe if you do math competitions or something, you get a slightly different experience. But I think many people, they don’t find their native math language until very late or usually too late. So they stop doing mathematics and they have a bad experience with a teacher who’s trying to teach them one way to do mathematics that they don’t like it.
My theory is that humans don’t come, evolution has not given us a math center of a brain directly. We have a vision center and a language center and some other centers, which evolution has honed, but we don’t have an innate sense of mathematics. But our other centers are sophisticated enough that we can repurpose other areas of our brain to do mathematics. So some people have figured out how to use the visual center to do mathematics, and so they think things very visually when they do mathematics. Some people have repurposed their language center and they think very symbolically. Some people, if they are very competitive and they’re gaming, there’s a part of your brain that’s very good at solving puzzles and games, and that can be repurposed.
But when I talk about the mathematicians, they don’t quite think that, I can tell that they’re using some other different styles of thinking, not disjoint, but they may prefer visual. I don’t actually prefer visual so much. I need lots of visual aids myself. Mathematics provides a common language, so we can still talk to each other even if we are thinking in different ways.
Lex Fridman
But you could tell there’s a different set of subsystems being used in the thinking process?
But you could tell there’s a different set of subsystems being used in the thinking process?
Terence Tao
Yeah, they take different paths. They’re very quick at things that I struggle with and vice versa, and yet they still get to the same goal.
Yeah, they take different paths. They’re very quick at things that I struggle with and vice versa, and yet they still get to the same goal.
Lex Fridman
That’s beautiful.
That’s beautiful.
Terence Tao
But the way we educate, unless you have a personalized tutor or something, education, sort of just financial skill has to be mass-produced, you have to teach the 30 kids. If they have 30 different styles, you can’t teach 30 different ways.
But the way we educate, unless you have a personalized tutor or something, education, sort of just financial skill has to be mass-produced, you have to teach the 30 kids. If they have 30 different styles, you can’t teach 30 different ways.
Advice for young people
Lex Fridman
On that topic, what advice would you give to students, young students who are struggling with math, but are interested in it and would like to get better? Is there something in this complicated educational context? What would you advise?
On that topic, what advice would you give to students, young students who are struggling with math, but are interested in it and would like to get better? Is there something in this complicated educational context? What would you advise?
Terence Tao
Yeah, it’s a tricky problem. One nice thing is that there are now lots of sources for mathematical enrichment outside the classroom. So in my days, there were math competitions and there are also popular math books in the library. But now you have YouTube. There are forums just devoted to solving math puzzles. And math shows up in other places. For example, there are hobbyists who play poker for fun and they, for very specific reasons, are interested in very specific probability questions. And actually, there’s a community of amateur probabilists in poker, in chess, in baseball. There’s math all over the place, and I’m hoping actually with these new tools for Lean and so forth, that actually we can incorporate the broader public into math research projects. This almost doesn’t happen at all currently.
Yeah, it’s a tricky problem. One nice thing is that there are now lots of sources for mathematical enrichment outside the classroom. So in my days, there were math competitions and there are also popular math books in the library. But now you have YouTube. There are forums just devoted to solving math puzzles. And math shows up in other places. For example, there are hobbyists who play poker for fun and they, for very specific reasons, are interested in very specific probability questions. And actually, there’s a community of amateur probabilists in poker, in chess, in baseball. There’s math all over the place, and I’m hoping actually with these new tools for Lean and so forth, that actually we can incorporate the broader public into math research projects. This almost doesn’t happen at all currently.
So in the sciences, there’s some scope for citizen science, like astronomers. There are amateurs who would discover comets, and there’s biologists that people who could identify butterflies and so forth. And in math, there are a small number of activities where amateur mathematicians can discover new primes and so forth. But previously, because we had to verify every single contribution, most mathematical research projects, it would not help to have input from the general public. In fact, it’ll just be time-consuming because just error checking and everything. But one thing about these formalisation projects is that they are bringing in more people. So I’m sure there are high school students who’ve already contributed to some of these formalizing projects, who’ve contributed to mathlib. You don’t need to be a PhD holder to just work on one atomic thing.
Lex Fridman
There’s something about the formalisation here that also, as a very first step, opens it up to the programing community too. The people who are already comfortable with program. It seems like programing is somehow maybe just the feeling, but it feels more accessible to folks than math. Math is seen as this extreme, especially modern mathematics is seen as this extremely difficult-to-enter area, and programing is not. So that could be just an entry point.
There’s something about the formalisation here that also, as a very first step, opens it up to the programing community too. The people who are already comfortable with program. It seems like programing is somehow maybe just the feeling, but it feels more accessible to folks than math. Math is seen as this extreme, especially modern mathematics is seen as this extremely difficult-to-enter area, and programing is not. So that could be just an entry point.
Terence Tao
You can execute code and you can get results. You can print out the world pretty quickly. If programing was taught as an almost entirely theoretical subject where you’re just taught the computer science, the theory of functions and routines and so forth, and outside of some very specialized homework assignments, you’re not actually programing, like on the weekend for fun, they would be as considered as hard as math. So as I said, there are communities of non-mathematicians where they’re deploying math for some very specific purpose, like optimizing their poker game, and for them, then math becomes fun for them.
You can execute code and you can get results. You can print out the world pretty quickly. If programing was taught as an almost entirely theoretical subject where you’re just taught the computer science, the theory of functions and routines and so forth, and outside of some very specialized homework assignments, you’re not actually programing, like on the weekend for fun, they would be as considered as hard as math. So as I said, there are communities of non-mathematicians where they’re deploying math for some very specific purpose, like optimizing their poker game, and for them, then math becomes fun for them.
Lex Fridman
What advice would you give in general to young people how to pick a career, how to find themselves, what they could be good at?
What advice would you give in general to young people how to pick a career, how to find themselves, what they could be good at?
Terence Tao
That’s a tough, tough, tough question. Yeah, so there’s a lot of uncertainty now in the world. There was this period after the war where, at least in the West, if you came from a good demographic, there was a very stable path to it, to a good career. You go to college, you get an education, you pick one profession and you stick to it. It’s becoming much more a thing of the past. So I think you just have to be adaptable and flexible. I think people will have to get skills that are transferable, like learning one specific programing language or one specific subject of mathematics or something. That itself is not a super transferable skill, but sort of knowing how to reason with abstract concepts or how to problem solve when things go wrong. Anyway, these are things which I think we will still need even as our tools get better, and you’ll be working with AI supports and so forth.
That’s a tough, tough, tough question. Yeah, so there’s a lot of uncertainty now in the world. There was this period after the war where, at least in the West, if you came from a good demographic, there was a very stable path to it, to a good career. You go to college, you get an education, you pick one profession and you stick to it. It’s becoming much more a thing of the past. So I think you just have to be adaptable and flexible. I think people will have to get skills that are transferable, like learning one specific programing language or one specific subject of mathematics or something. That itself is not a super transferable skill, but sort of knowing how to reason with abstract concepts or how to problem solve when things go wrong. Anyway, these are things which I think we will still need even as our tools get better, and you’ll be working with AI supports and so forth.
Lex Fridman
But actually you’re an interesting case study. You’re one of the great living mathematicians, and then you had a way of doing things, and then all of a sudden you start learning. First of all, you kept learning new fields, but you learned Lean. That’s not a non-trivial thing to learn. For a lot of people, that’s an extremely uncomfortable leap to take, right?
But actually you’re an interesting case study. You’re one of the great living mathematicians, and then you had a way of doing things, and then all of a sudden you start learning. First of all, you kept learning new fields, but you learned Lean. That’s not a non-trivial thing to learn. For a lot of people, that’s an extremely uncomfortable leap to take, right?
Terence Tao
Yeah.
Yeah.
Lex Fridman
A lot of mathematicians.
A lot of mathematicians.
Terence Tao
First of all, I’ve always been interested in new ways to do mathematics. I feel like a lot of the ways we do things right now are inefficient. Many of my colleagues, who spend a lot of time doing very routine computations or doing things that other mathematicians would instantly know how to do and we don’t know how to do them, like how we search and get a quick response and so forth. So that’s why I’ve always been interested in exploring new workflows.
First of all, I’ve always been interested in new ways to do mathematics. I feel like a lot of the ways we do things right now are inefficient. Many of my colleagues, who spend a lot of time doing very routine computations or doing things that other mathematicians would instantly know how to do and we don’t know how to do them, like how we search and get a quick response and so forth. So that’s why I’ve always been interested in exploring new workflows.
About four or five years ago, I was on a committee where we had to ask for ideas for interesting workshops to run at a math institute. And at the time, Peter Scholze had just formalized one of his new theorems, and there were some other developments in computer-assisted proof that look quite interesting. And I said, “Oh, we should run a workshop on this. This would be a good idea.” And then I was a bit too enthusiastic about this idea, and so I got volun-told to actually run it. So I did with a bunch of other people, Kevin Buzzard and Jordan Ellenberg and a bunch of other people, and it wasn’t a nice success. We pulled together a bunch of mathematicians and computer scientists and other people, and we got up to speed on state of the yard, and it was really interesting developments that most mathematicians didn’t know was going on, lots of nice proofs of concept, just hints of what was going to happen. This was just before ChatGPT, but even then there was one talk about language models and the potential capability of those in the future.
So that got me excited about the subject. So I started giving talks about this is something more of us should start looking at, now that I had arranged, run this conference. And then ChatGPT came out and suddenly AI was everywhere. And so I got interviewed a lot about this topic and in particular, the interaction between AI and [inaudible 03:04:33]. I said, “Yeah, they should be combined. This is perfect synergy to happen here.” And at some point I realized that I have to actually not just talk the talk, but walk the walk. I don’t work in machine learning and I don’t work in proof formalisation, and there’s a limit to how much I can just rely on authority and say, “I’m a mathematician. Just trust me when I say that this is going to change mathematics,” and I don’t do any of it myself. So I felt like I had to actually justify it.
A lot of what I get into, actually, I don’t quite see in advance as how much time I’m going to spend on it, and it’s only after I’m sort of waist deep in a project that I realize, but at that point, I’m committed.
Lex Fridman
Well, that’s deeply admirable that you’re willing to go into the fray, be in some small way a beginner, or have some of the challenges that a beginner would, right?
Well, that’s deeply admirable that you’re willing to go into the fray, be in some small way a beginner, or have some of the challenges that a beginner would, right?
Terence Tao
Yeah.
Yeah.
Lex Fridman
New concepts, new ways of thinking, also sucking at a thing that others… I think in that talk, you could be a Fields Medal-winning mathematician and an undergrad knows something better than you.
New concepts, new ways of thinking, also sucking at a thing that others… I think in that talk, you could be a Fields Medal-winning mathematician and an undergrad knows something better than you.
Terence Tao
Yeah, I think mathematics inherently, mathematics is so huge these days that nobody knows all of modern mathematics. And inevitably, we make mistakes and you can’t cover up your mistakes with just bravado because people will ask for your proofs, and if you don’t have the proofs, you don’t have the proofs.
Yeah, I think mathematics inherently, mathematics is so huge these days that nobody knows all of modern mathematics. And inevitably, we make mistakes and you can’t cover up your mistakes with just bravado because people will ask for your proofs, and if you don’t have the proofs, you don’t have the proofs.
Lex Fridman
I love math.
I love math.
Terence Tao
Yeah, so it does keep us honest. It’s not a perfect panacea, but I think we do have more of a culture of admitting error because we’re forced to all the time.
Yeah, so it does keep us honest. It’s not a perfect panacea, but I think we do have more of a culture of admitting error because we’re forced to all the time.
The greatest mathematician of all time
Lex Fridman
Big ridiculous question. I’m sorry for it once again. Who is the greatest mathematician of all time, maybe one who’s no longer with us? Who are the candidates? Euler, Gauss, Newton, Ramanujan, Hilbert?
Big ridiculous question. I’m sorry for it once again. Who is the greatest mathematician of all time, maybe one who’s no longer with us? Who are the candidates? Euler, Gauss, Newton, Ramanujan, Hilbert?
Terence Tao
So first of all, as mentioned before, there’s some time dependence.
So first of all, as mentioned before, there’s some time dependence.
Lex Fridman
On the day.
On the day.
Terence Tao
Yeah. Like if you plot cumulatively over time, for example, Euclid is one of the leading contenders, and then maybe some unnamed anonymous mathematicians before that, whoever came up with the concept of numbers.
Yeah. Like if you plot cumulatively over time, for example, Euclid is one of the leading contenders, and then maybe some unnamed anonymous mathematicians before that, whoever came up with the concept of numbers.
Lex Fridman
Do mathematicians today still feel the impact of Hilbert, just-
Do mathematicians today still feel the impact of Hilbert, just-
Terence Tao
Oh, yeah.
Oh, yeah.
Lex Fridman
Directly of what? Everything that’s happened in the 20th century?
Directly of what? Everything that’s happened in the 20th century?
Terence Tao
Yeah, Hilbert spaces, we have lots of things that are named after him of course. Just the arrangement of mathematics and just the introduction of certain concepts, 23 problems have been extremely influential.
Yeah, Hilbert spaces, we have lots of things that are named after him of course. Just the arrangement of mathematics and just the introduction of certain concepts, 23 problems have been extremely influential.
Lex Fridman
There’s some strange power to the declaring which problems are hard to solve, the statement of the open problems.
There’s some strange power to the declaring which problems are hard to solve, the statement of the open problems.
Terence Tao
Yeah, this is bystander effect everywhere. If no one says you should do X, everyone just mills around waiting for somebody else to do something, and nothing gets done. And the one thing that actually you have to teach undergraduates in mathematics is that you should always try something. So you see a lot of paralysis in an undergraduate trying a math problem. If they recognize that there’s a certain technique that can be applied, they will try it. But there are problems which they see and none of their standard techniques obviously applies and the common reaction is than just paralysis, I don’t know what to do. I think there’s a quote from the Simpsons, “I’ve tried nothing and I’m all out of ideas.” So the next step then is to try anything no matter how stupid and in fact almost the stupider, the better, which technically is almost guaranteed to fail, but the way it fails is going to be instructive. It fails ’cause you are not at all taking into account this hypothesis. Oh, this hypothesis must be useful. That’s a clue.
Yeah, this is bystander effect everywhere. If no one says you should do X, everyone just mills around waiting for somebody else to do something, and nothing gets done. And the one thing that actually you have to teach undergraduates in mathematics is that you should always try something. So you see a lot of paralysis in an undergraduate trying a math problem. If they recognize that there’s a certain technique that can be applied, they will try it. But there are problems which they see and none of their standard techniques obviously applies and the common reaction is than just paralysis, I don’t know what to do. I think there’s a quote from the Simpsons, “I’ve tried nothing and I’m all out of ideas.” So the next step then is to try anything no matter how stupid and in fact almost the stupider, the better, which technically is almost guaranteed to fail, but the way it fails is going to be instructive. It fails ’cause you are not at all taking into account this hypothesis. Oh, this hypothesis must be useful. That’s a clue.
Lex Fridman
I think you also suggested somewhere this fascinating approach, which really stuck with me as they’re using it, and it really works, I think you said it’s called structured procrastination.
I think you also suggested somewhere this fascinating approach, which really stuck with me as they’re using it, and it really works, I think you said it’s called structured procrastination.
Terence Tao
No, yes.
No, yes.
Lex Fridman
It’s when you really don’t want to do a thing that you imagine a thing you don’t want to do more that’s worse than that and then in that way, you procrastinate by not doing the thing that’s worse. It’s a nice hack, it actually works.
It’s when you really don’t want to do a thing that you imagine a thing you don’t want to do more that’s worse than that and then in that way, you procrastinate by not doing the thing that’s worse. It’s a nice hack, it actually works.
Terence Tao
Yeah, yeah. With anything, psychology is really important. You talk to athletes like marathon runners and so forth and they talk about what’s the most important thing, is it the training regimen or the diet and so forth? So much of it is psychology, just tricking yourself to think that the problem is feasible so that you’re motivated to do it.
Yeah, yeah. With anything, psychology is really important. You talk to athletes like marathon runners and so forth and they talk about what’s the most important thing, is it the training regimen or the diet and so forth? So much of it is psychology, just tricking yourself to think that the problem is feasible so that you’re motivated to do it.
Lex Fridman
Is there something our human mind will never be able to comprehend?
Is there something our human mind will never be able to comprehend?
Terence Tao
Well, as a mathematician, [inaudible 03:09:23]. There must be some large number that you can’t understand. That was the first thing that came to mind.
Well, as a mathematician, [inaudible 03:09:23]. There must be some large number that you can’t understand. That was the first thing that came to mind.
Lex Fridman
So that, but even broadly, is there something about our mind that we’re going to be limited even with the help of mathematics?
So that, but even broadly, is there something about our mind that we’re going to be limited even with the help of mathematics?
Terence Tao
Well, okay, how much augmentation are you willing. Like for example, if I didn’t even have a pen and paper, if I had no technology whatsoever, so I’ve not allowed blackboard, pen and paper-
Well, okay, how much augmentation are you willing. Like for example, if I didn’t even have a pen and paper, if I had no technology whatsoever, so I’ve not allowed blackboard, pen and paper-
Lex Fridman
You’re already much more limited than you would be.
You’re already much more limited than you would be.
Terence Tao
… Incredibly limited. Even language, the English language is a technology. It’s one that’s been very internalized.
… Incredibly limited. Even language, the English language is a technology. It’s one that’s been very internalized.
Lex Fridman
So you’re right, the formulation of the problem is incorrect ’cause there really is no longer just a solo human already augmented in extremely complicated intricate ways, right?
So you’re right, the formulation of the problem is incorrect ’cause there really is no longer just a solo human already augmented in extremely complicated intricate ways, right?
Terence Tao
Yeah. Yeah.
Yeah. Yeah.
Lex Fridman
So like a collective intelligence?
So like a collective intelligence?
Terence Tao
Yes. Yeah, I guess, so humanity plural has much more intelligence in principle on its good days than the individual humans put together. It can have less, but yeah, so the mathematical community plural is incredibly super intelligent entity that no single human mathematician can come closer to replicating. You see it a little bit on these question analysis sites. So this math overflow, which is the math version of stackable flow, sometimes you get this very quick response to very difficult questions from the community, and it’s a pleasure to watch actually, as an expert.
Yes. Yeah, I guess, so humanity plural has much more intelligence in principle on its good days than the individual humans put together. It can have less, but yeah, so the mathematical community plural is incredibly super intelligent entity that no single human mathematician can come closer to replicating. You see it a little bit on these question analysis sites. So this math overflow, which is the math version of stackable flow, sometimes you get this very quick response to very difficult questions from the community, and it’s a pleasure to watch actually, as an expert.
Lex Fridman
I’m a fan spectator of that site, just seeing the brilliance of the different people, the depth and knowledge that people have. And the willingness to engage in the rigor and the nuance of the particular question, it’s pretty cool to watch. It’s almost like just fun to watch. What gives you hope about this whole thing we have going on with human civilization?
I’m a fan spectator of that site, just seeing the brilliance of the different people, the depth and knowledge that people have. And the willingness to engage in the rigor and the nuance of the particular question, it’s pretty cool to watch. It’s almost like just fun to watch. What gives you hope about this whole thing we have going on with human civilization?
Terence Tao
I think the younger generation is always really creative and enthusiastic and inventive. It’s a pleasure working with young students. The progress of science tells us that the problems that used to be really difficult can become trivial to solve. Like navigation, just knowing where you work on the planet was this horrendous problem. People died or lost fortunes because they couldn’t navigate. And we have devices in our pockets that do this automatically for us, like it is a completely solved problem. So things that seem unfeasible for us now, could be maybe just homework exercises.
I think the younger generation is always really creative and enthusiastic and inventive. It’s a pleasure working with young students. The progress of science tells us that the problems that used to be really difficult can become trivial to solve. Like navigation, just knowing where you work on the planet was this horrendous problem. People died or lost fortunes because they couldn’t navigate. And we have devices in our pockets that do this automatically for us, like it is a completely solved problem. So things that seem unfeasible for us now, could be maybe just homework exercises.
Lex Fridman
Yeah. One of the things I find really sad about the finiteness of life is that I won’t get to see all the cool things we create as a civilization because in the next 100 years, 200 years, just imagine showing up in 200 years.
Yeah. One of the things I find really sad about the finiteness of life is that I won’t get to see all the cool things we create as a civilization because in the next 100 years, 200 years, just imagine showing up in 200 years.
Terence Tao
Yeah, well, already plenty has happened. If you could go back in time and talk to your teenage self or something, the internet and now AI, again, they’re getting to internalize and yeah, of course, AI can understand our voice and give reasonable slightly incorrect answers to any question. But yeah, this was mind-blowing even two years ago.
Yeah, well, already plenty has happened. If you could go back in time and talk to your teenage self or something, the internet and now AI, again, they’re getting to internalize and yeah, of course, AI can understand our voice and give reasonable slightly incorrect answers to any question. But yeah, this was mind-blowing even two years ago.
Lex Fridman
And in the moment, it’s hilarious to watch on the internet and so on, the drama, people take everything for granted very quickly, and then we humans seem to entertain ourselves with drama. Out of anything that’s created, somebody needs to take one opinion, another person needs to take an opposite opinion, argue with each other about it. But when you look at the arc of things, just even in the progress of robotics, just to take a step back and be like, “Wow, this is beautiful, that we humans are able to create this.”
And in the moment, it’s hilarious to watch on the internet and so on, the drama, people take everything for granted very quickly, and then we humans seem to entertain ourselves with drama. Out of anything that’s created, somebody needs to take one opinion, another person needs to take an opposite opinion, argue with each other about it. But when you look at the arc of things, just even in the progress of robotics, just to take a step back and be like, “Wow, this is beautiful, that we humans are able to create this.”
Terence Tao
When the infrastructure and the culture is healthy, the community of humans can be so much more intelligent and mature and rational than the individuals within it.
When the infrastructure and the culture is healthy, the community of humans can be so much more intelligent and mature and rational than the individuals within it.
Lex Fridman
Well, one place I can always count on rationality is the Comment section of your blog, which I’m a big fan of. There’s a lot of really smart people there. And thank you, of course, for putting those ideas out on the blog. And I can’t tell you how honored I am that you would spend your time with me today. I was looking forward to this for a long time. Terry, I’m a huge fan. You inspire me, you inspire millions of people. Thank you so much for time.
Well, one place I can always count on rationality is the Comment section of your blog, which I’m a big fan of. There’s a lot of really smart people there. And thank you, of course, for putting those ideas out on the blog. And I can’t tell you how honored I am that you would spend your time with me today. I was looking forward to this for a long time. Terry, I’m a huge fan. You inspire me, you inspire millions of people. Thank you so much for time.
Terence Tao
Thank you. It was a pleasure.
Thank you. It was a pleasure.
Lex Fridman
Thanks for listening to this conversation with Terrence Tao. To support this podcast, please check out our sponsors in the description or at lexfridman.com/sponsors. And now, let me leave you with some words from Galileo Galilei, “Mathematics is a language with which God has written the universe.”
Thanks for listening to this conversation with Terrence Tao. To support this podcast, please check out our sponsors in the description or at lexfridman.com/sponsors. And now, let me leave you with some words from Galileo Galilei, “Mathematics is a language with which God has written the universe.”
Thank you for listening and hope to see you next time.
Transcript for Sundar Pichai: CEO of Google and Alphabet | Lex Fridman Podcast #471
This is a transcript of Lex Fridman Podcast #471 with Sundar Pichai.
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We had no running water. It was a massive drought, so they would get water in these trucks, maybe eight buckets per household. So me and my brother, sometimes my mom, we would wait in line, get that and bring it back home. Many years later, we had running water and we had a water heater, and you could get hot water to take a shower. For me, everything was discreet like that.
So, I’ve always had this thing, first-hand feeling of how technology can dramatically change your life, and the opportunity it brings. I think if p(doom) is actually high, at some point, all of humanity is aligned in making sure that’s not the case, and so we’ll actually make more progress against it, I think. So the irony is there is a self-modulating aspect there. I think if humanity collectively puts their mind to solving a problem, whatever it is, I think we can get there.
Because of that, I think I’m optimistic on the p(doom) scenarios, but that doesn’t mean I think the underlying risk is actually pretty high. But I have a lot of faith in humanity rising up to meet that moment.
If you could travel back in time and told that, let’s say, twelve-year-old Sundar that you’re now leading one of the largest companies in human history, what do you think that young kid would say?
Pre computers, there a lot of free time, now that I think about it. Now you have to go and seek that quiet solitude or something. Newspapers, books is how I gained access to the world’s information at the time [inaudible 00:04:06].
My grandfather was a big influence. He worked in the post office. He was so good with language. His English… His handwriting, till today, is the most beautiful handwriting I’ve ever seen. He would write so clearly. He was so articulate, and so he got me introduced into books. He loved politics. We could talk about anything.
That was there in my family throughout. Lots of books, trashy books, good books, everything from Ayn Rand to books on philosophy to stupid crime novels. Books was a big part of my life, but the soul, it’s not surprising I ended up at Google, because Google’s mission always resonated deeply with me. This access to knowledge, I was hungry for it.
But definitely have fond memories of my childhood. Access to knowledge was there, so that’s the wealth we had. Every aspect of technology I had to wait for a while. I’ve obviously spoken before about how long it took for us to get a phone, about five years, but it’s not the only thing.
We had no running water. It was a massive drought, so they would get water in these trucks, maybe eight buckets per household. So me and my brother, sometimes my mom, we would wait in line, get that and bring it back home. Many years later, we had running water and we had a water heater, and you could get hot water to take a shower. For me, everything was discreet like that. So, I’ve always had this thing, first-hand feeling of how technology can dramatically change your life, and the opportunity it brings. That was a subliminal takeaway for me throughout growing up. I actually observed it and felt it.
We had to convince my dad for a long time to get a VCR. Do you know what a VCR is?
So I had these discrete memories growing up, and so always left me with the feeling of how getting access to technology drives that step change in your life.
The second thing is trying to work with people who you feel… At various points in my life I’ve worked with people who I felt were better than me. You almost are sitting in a room talking to someone and they’re wow. you want that feeling a few times. Trying to get yourself in a position where you’re working with people who you feel are stretching your abilities is what helps you grow, I think, so putting yourself in uncomfortable situations. And I think often you’ll surprise yourself.
So, I think being open minded enough to put yourself in those positions is maybe another thing I would say.
But have there been times I lose it? Yeah. Maybe less often than others, and maybe over the years less and less so, because I find it’s not needed to achieve what you need to do.
At times, you’re working with people who are so committed to achieving, if they’ve done something wrong, they feel it more than you do, so you treat them differently than… Occasionally, there are people who you need to clearly let them know that wasn’t okay or whatever it is. But I’ve often found that not to be the case.
Who’s the greatest soccer player of all time? Messi, Ronaldo or Pelé or Maradona?
When you ask this question, I was thinking, do we have a recency bias? In sports, it’s very tempting to call the current person you’re seeing the greatest…
Many of what you’re talking about were this general things, which pretty much affected everything: electricity or internet, et cetera. But I don’t think we’ve ever dealt with the technology both which is progressing so fast, becoming so capable it’s not clear what the ceiling is, and the main, unique…. It’s recursively self-improving, it’s capable of that.
The fact it is the first technology will dramatically accelerate creation itself, like creating things, building new things, can improve and achieve things on its own, I think puts it in a different. So, I think the impact it’ll end up having will far surpass everything we’ve seen before. Obviously, with that comes a lot of important things to think and wrestle with, but I definitely think that’ll end up being the case.
Even the Veo 3 models, if you sample the models when they were 30% done and 60% done, and looked at what they were generating, and you see how it all comes together, I would say it’s inspiring, a little bit unsettling, as a human. So all of that is true, I think.
There’s these ripple effects, second- and third-order effects that happen, everything from something profound like pottery, it can store liquids and food, to something we take for granted: social hierarchies and political hierarchies. Early government was formed. Because it turns out if humans stop moving and have some surplus food, they get bored and they start coming up with interesting systems. And then trade emerges, which turns out to be a really profound thing, and like I said, government. Second- and third-order effects from that, including that package, is incredible and probably extremely difficult. If you ask one of the people in the nomadic tribes to predict that, it would be impossible, and it’s difficult to predict.
But all that said, what do you think are some of the early things we might see in the, quote, unquote, “AI package”?
Maybe in the past you could have expressed with words, but you could build things into existence. Maybe not fully today, we are at the early stages of vibe coding. I’ve been amazed at what people have put out online with Veo 3. But it takes a bit of work, you have to stitch together a set of prompts. But all this is going to get better. The thing I always think: this is the worst it’ll ever be, at any given moment in time.
One way to say is you’ll have a lot more content, and so you will be listening to AI-generated content because sometimes it’s efficient, et cetera. But the premium experiences you value might be a version of the human essence wherever it comes through. Going back to what we talked earlier about watching Messi dribble the ball, I don’t know, one day I’m sure a machine will dribble much better than Messi. But I don’t know whether it would evoke that same emotion in us, so I think that’ll be fascinating to see.
The point is, it’s going to continue to change the nature of how we discover information, how we consume the information, how we create that information, the same way that YouTube changed everything completely. It changed the news. And that’s something our society’s struggling with.
But I think there’ll be a lot more content created. Just like writers today use Google Docs and not think about the fact that they’re using a tool like that, people will be using the future versions of these things. It won’t be a big deal at all to them.
You have people I’ve gotten just to know, edgier folks, they are AI firsts, like Dor Brothers. Both Aronofsky and Dor Brothers create at the edge of the Overton window society. They push, whether it’s sexuality or violence. It’s edgy, like artists are, but it’s still classy. It doesn’t cross that line. Whatever that line is. Hunter S. Thompson has this line, “The only way to find out where the edge, where the line is, is by crossing it.” And I think for artists, that’s true. That’s their purpose sometimes. Comedians and artists just cross that line.
I wonder if you can comment on the weird place that it puts Google. Because Google’s line is probably different than some of these artists. How do you think about, specifically Veo and Flow, how to allow artists to do crazy shit, but also the responsibility for it not to be too crazy?
I think that’s going to be an important value we have, so I think we will provide tools and put it in the hands of artists for them to use and put out their work. Those APIs, I almost think of that as infrastructure. Just like when you provide electricity to people or something, you want them to use it, and you’re not thinking about the use cases on top of it.
Earlier versions of Gemini were very… Basically this sense, are you sure you want to learn about this. And now, it’s actually very factual, objective, talks about very difficult parts of human history, and does so with nuance and depth. It’s been really nice. But there’s a line there that I guess Google has to walk. And it’s also an engineering challenge how to do that at scale across all the weird queries that people ask.
Can you just speak to that challenge? How do you allow Gemini to say… Again, forgive, pardon my French… crazy shit, but not too crazy?
And I think users really want that. You want as much access to the raw model as possible. I think it’s a great area to think about. Over time, we should allow more and more closer access to it. Obviously, let people custom prompts if they wanted to and experiment with it, et cetera. I think that’s an important direction.
The first principles we want to think about it is, from a scientific standpoint, making sure the models… And I’m saying scientific in the sense of how you would approach math or physics or something like that. From first principles, having the models reason about the world, be nuanced, et cetera, from the ground up is the right way to build these things, not some subset of humans hard-coding things on top of it. I think it’s the direction we’ve been taking and I think you’ll see us continue to push in that direction.
I don’t think you can answer that, but it woke me up to all of these tokens are providing little aha moments for people across the globe. So, that’s like learning. Those tokens are people are curious, they ask a question and they find something out, and it truly could be life-changing.
Like Veo 3, the physics understanding is dramatically better than what Veo 1 or something like that was. So you kind of see on all those dimensions, I feel progress is very obvious to see and I feel like there is significant headroom. More importantly, I’m fortunate to work with some of the best researchers on the planet, they think there is more headroom to be had here. And so I think we have an exciting trajectory ahead. It’s tougher to say… Each year I sit and say, okay, we are going to throw 10 X more compute over the course of next year at it and will we see progress? Sitting here today, I feel like the year ahead will have a lot of progress.
Another kitchen question. So lots of folks are talking about timelines for AGI or ASI, artificial super intelligence. So AGI loosely defined is basically human expert level at a lot of the main fields of pursuit for humans. And then ASI is what AGI becomes, presumably quickly, by being able to self-improve. So becoming far superior in intelligence across all these disciplines than humans. When do you think we’ll have AGI? It’s 2030 a possibility?
But if your question is will it happen by 2030? Look, we constantly move the line of what it means to be AGI. There are moments today like sitting in a Waymo in a San Francisco street with all the crowds and the people and work its way through, I see glimpses of it there. The car is sometimes impatient, trying to work its way using Astra like in Gemini Live or asking questions about the world.
Whatever, we may be arguing about the term or maybe Gemini can answer what that moment is in time in 2030, but I think the progress will be dramatic. So that I believe in. Will the AI think it has reached AGI by 2030? I would say we will just fall short of that timeline, so I think it’ll take a bit longer. It’s amazing, in the early days of Google DeepMind in 2010, they talked about a 20-year timeframe to achieve AGI, which is kind of fascinating to see, but for me, the whole thing, seeing what Google Brain did in 2012, and when we acquired DeepMind in 2014, right close to where we are sitting, in 2012, Jeff Dean showed the image of when the neural networks could recognize a picture of a cat and identify it. This is the early versions of Brain.
And so we all talked about couple decades. I don’t think we’ll quite get there by 2030, so my sense is it’s slightly after that, but I would stress it doesn’t matter what that definition is because you will have mind-blowing progress on many dimensions. Maybe AI can create videos. We have to figure out as a society, we need some system by which we all agree that this is AI-generated and we have to disclose it in a certain way because how do you distinguish reality otherwise?
And I think shadcn Tweeted that Google is just one great UI from completely winning the AI race, meaning UI is a huge part of it. How that intelligence, I think the [inaudible 00:42:45] Project likes to talk about this right now, it’s an LLM, but when is it going to become a system where you’re talking about shipping systems versus shipping a particular model? Yeah, that matters too, how the system manifests itself and how it presents itself to the world. That really, really matters
But it’s very tough to organize all of humanity that way. But I think if p(doom) is actually high, at some point, all of humanity is aligned in making sure that’s not the case. And so we’ll actually make more progress against it, I think. So the irony is, so there is a self-modulating aspect there. I think if humanity collectively puts their mind to solving a problem, whatever, it is, I think we can get there. So because of that, I think I’m optimistic on the p(doom) scenarios, I think the underlying risk is actually pretty high, but I have a lot of faith in humanity kind of rising up to meet that moment.
Anytime you’re in a situation like that, a few aspects. I’m good at tuning out noise, separating signal from noise. Do you scuba dive? Have you…?
As leaders, you’re making a lot of decisions, many of them are inconsequential it feels like, but over time you learn that most of the decisions you’re making on a day-to-day basis doesn’t matter. You have to make them and you’re making them just to keep things moving. But you have to make a few consequential decisions and we had set up the right teams, right leaders, we had world-class researchers, we were training Gemini.
Internally, there are factors which were, for example, outside people may not have appreciated. I mean TPUs are amazing, but we had to ramp up TPUs too. That took time to scale actually having enough TPUs to get the compute needed. But I could see internally the trajectory we were on and I was so excited internally about the possible, to me this moment felt like one of the biggest opportunities ahead for us as a company that the opportunity space ahead or the next decade, next 20 years, is bigger than what has happened in the past. And I thought we were set up better than most companies in the world to go realize that vision.
But I think, you are right, it took us a while to bring the teams together, credit to Demis, Jeff, Koray, all the great people there. They worked super hard to combine the best of both worlds when you set up that team. A few sleepless nights here and there, as we put that thing together. We were patient in how we did it so that it works well for the long term and some of that in that moment. I think, yes, with things moving fast, I think you definitely felt the pressure, but I think we pulled off that transition well, and I think they’re obviously doing incredible work and there’s a lot more incredible things ahead coming from them.
For many of us, this has been a long-term journey, and so it’s been super exciting. The positive moments far outweigh the kind of stressful moments. Just early this year, I had a chance to celebrate back-to-back over two days Nobel Prize for Geoff Hinton and the next day a Nobel Prize for Demis and John Jumper. You worked with people like that, all that is super inspiring.
I find it very effective in meetings where you’re making such decisions to hear everyone out. I think it’s important, when you can, to hear everyone out. Sometimes what you’re hearing actually influences how you think about, and you’re wrestling with it and making a decision. Sometimes you have a clear conviction and you state, so look, this is how I feel and this is my conviction, and you kind of place the bet and you move on.
Getting people to work together physically, both in London with DeepMind at what we call Gradient Canopy, which is where the Mountain View Google DeepMind teams are. But one of my favorite moments is I routinely walk multiple times per week to the Gradient Canopy building where our top researchers are working on the models, Sergey is often there amongst them, just looking at getting an update on the model, seeing the loss curves, so all that. I think that cultural part of getting the teams together back with that energy, I think ended up playing a big role too.
Pertaining to our earlier conversation, we’re still giving you access to links, but think of the AI as a layer, which is giving you context, summary, maybe in AI mode, you can have a dialogue with it back and forth on your journey, but through it all, you’re kind of learning what’s out there in the world. So those core principles don’t change. But I think AI mode allows us to push the… We have our best models there, models that are using search as a deep tool, really for every query you’re asking, kind of fanning out doing multiple searches, kind of assembling that knowledge in a way so that you can go and consume what you want to, and that’s how we think about it.
So one of the things you don’t quite understand is through AI mode for non-English speakers, you make, let’s say, English language websites accessible in the reasoning process as you’ve tried to figure out what you’re looking for. Of course once you show up to a page, you can use a basic translate, but that process of figuring it out, if you empathize with a large part of the world that doesn’t speak English, their web is much smaller in that original language. And so it, again, unlocks that huge cognitive capacity there. You take for granted here with all the bloggers and the journalists writing about AI mode, you forget that this now unlocks because Gemini is really good at translation.
All that doesn’t change in an AI moment, but look, we will rethink it. You’ve seen us in YouTube now do a mixture of subscription and ads. Like, obviously, we are now introducing subscription offerings across everything. So as part of that, the optimization point will end up being a different place as well.
Of course, the argument is the journalists are still valuable, but then, I don’t know, the crowdsourced journalism that we get on the open internet is also very, very powerful.
So I expect the web to get a lot richer, and more interesting, and better to use. At the same time, I think there’ll be an agentic web, which is also making a lot of progress, and you have to solve the business value and the incentives to make that work well, right? For people to participate in it.
But I think both will coexist, and obviously, the agents may not need the same… Not may not. They won’t need the same design and the UI paradigms which humans need to interact with. But I think both will be there.
The browser is our window to the web, and Chrome really continues for many years. But even initially, to push the innovation on that front when it was stale, and it continues to challenge. It continues to make it more performant, so efficient, and just innovate constantly, and the Chromium aspect of it.
Anyway, you were one of the pioneers of Chrome pushing for it when it was an insane idea, probably one of the ideas that was criticized, and doubted, and so on. So can you tell me the story of what it took to push for Chrome? What was your vision?
The browser was far away from being an operating system for that rich modern web which was coming into place. So that’s the opportunity we saw. It’s an amazing early team. I still remember the day we got a shell on WebKit running and how fast it was. We had the clear vision for building a browser. We wanted to bring Core OS principles into the browser, right?
So we built a secure browser, sandbox. Each tab was its own. These things are common now, but at the time, it was pretty unique. We found an amazing team in Aarhus, Denmark with a leader who built the JavaScript VM, which at the time, was 25 times faster than any other JavaScript VM out there. By the way, you are right. We open-sourced it all and put it in Chromium too, but we really thought the web could work much better, much faster, and you could be much safer browsing the web, and the name Chrome came because literally felt people were… Or the Chrome of the browser was getting clunkier.
We wanted to minimize it. So that was the origins of the project. Definitely, obviously, highly-biased person here talking about Chrome, but it’s the most fun I’ve had building a product from the ground up, and it was an extraordinary team. My co-founders on the project were terrific, so definite fond memories.
I think once we started building something, and we could use it. And see how much better, from then on, you’re really tinkering with the product and making it better. It came to life pretty fast.
For a long time, Waymo’s been, like you mentioned with scuba diving, just not listening to anybody, just calmly improving the system better, and better, more testing, just expanding the operational domain more and more. First of all, congrats on the 10 million paid Robotaxi rides. What lessons do you take from Waymo about, like, the perseverance, the persistence on that project?
We knew while there were many other self-driving companies, we knew the technology gap was there. In fact, right at the moment, when others were doubting Waymo is when, I don’t know, made the decision to invest more in Waymo, right? Because so in some ways it’s counterintuitive, but I think, look, we’ve always been a deep technology company, and waymo is a version of kind of building a AI robot that works well, and so we get attracted to problems like that. The caliber of the teams there, phenomenal teams.
So I know you followed the space super closely. I’m talking to someone who knows the space well, but it was very obvious, it’s going to get there, and there’s still more work to do, but it’s a good example where we always prioritized being ambitious and safety at the same time, right? Equally committed to both and pushed hard and couldn’t be more thrilled with how it’s working, how much people love the experience. This year, definitely, we’ve scaled up a lot, and we’ll continue scaling up in ’26.
They’re obviously working on making Tesla self-driving too. I’ve just assumed it’s a de facto that Elon would succeed in whatever it does. So that is not something I question, but I think we are so far from… These spaces are such vast spaces. Like, I think about transportation, the opportunity space, the Waymo driver is a general purpose technology we can apply in many situations. So you have a vast green space in all future scenarios, I see Tesla doing well and Waymo doing well.
So the possibility of that and then the second and third order effects, as you’re seeing now with Tesla, very possibly, would see some… Internally, with Alphabet, maybe Waymo, maybe some of the Gemini robotics stuff, it might lead you into the other domains of robotics because we should remember that Waymo is a robot.
We are yet to fully articulate our plans outside, but it’s an area we are definitely committed to driving a lot of progress. But I think AI ends up driving that massive progress on robotics. The field has been held back for a while. I mean, hardware has made extraordinary progress. The software had been the challenge, but with AI now and the generalized models we are building, we are building these models, getting them to work in the real world in a safe way, in a generalized way is the frontier we are pushing pretty hard on.
But the moment you start to integrate AI Gemini into Gmail, I mean that’s the other thing, speaking of productivity multiplier, people complain about email, but that changed everything. Email, like the invention of email changed everything, and it has been ripe. There’s been a few folks trying to revolutionize email. Some of them on top of Gmail, but that’s like ripe for innovation, not just spam filtering, but you demoed a really nice demo of-
So I think both are important, but I think I’m excited about that direction.
It’s a good question of to ask yourself like, “In my life, what is the thing that brings me most joy and fulfillment?” If I’m able to actually focus more time on that, that’s really powerful.
Like, now, across the company, we’ve accomplished a 10% engineering velocity increase using AI, but we plan to hire more engineers next year, right? Because the opportunity space of what we can do is expanding too, right?
Second, I think it’ll attract, it’ll put the creative power in more people’s hands, which means people will create more. That means there’ll be more engineers doing more things. So it’s tough to fully predict, but I think in general, in this moment, it feels like people adopt these tools and be better programmers. Like, there are more people playing chess now than ever before, right? So it feels positive that way, to me, at least, speaking from within a Google context, is how I would talk to them about it.
I’m talking more about, like, overall-
So I’ve been using Cursor a lot as a way to program with Gemini and other models. One of its powerful things is it’s aware of the entire code base, and that allows you to ask questions of it. It allows the agents to move about that code base in a really powerful way. I mean, that’s a huge unlock.
The second thing is you need AI to actually kind of… Otherwise, the IO is too complicated for you to have a natural seamless IO to that paradigm. AI ends up being super important, and so this is why Project Astra ends up being super critical for that Android XR world. But it is. I think when you use glasses and… Always been amazed at how useful these things are going to be.
So look, I think it’s a real opportunity for Android. I think XR is one way it’ll kind of really come to life, but I think there’s an opportunity to rethink the mobile OS too, right? I think we’ve been kind of living in this paradigm of apps and shortcuts. All that won’t go away.
But again, if you’re trying to get stuff done at an operating system level, it needs to be more agentic so that you can kind of describe what you want to do or it proactively understands what you’re trying to do, learns from how you’re doing things over and over again and kind of as adapting to you all. That is kind of like the unlock we need to go and do.
In order to bring that into reality, you have to solve a lot of the OS problems to make sure it works when you’re integrating the AI into the whole thing. So everything you do launches an agent that answers some basic question.
I use so many Google products. Google Voice, I still use. I’m so glad that’s not being killed off. That’s still alive. Thank you, whoever is defending that, because it’s awesome, and it’s great. They keep innovating. I just want to list off, just as a big thank you, so Search, obviously, Google revolutionized, Chrome, and all of these could be multi-hour conversations. Gmail, I’ve been singing Gmail praises forever. Maps, incredible technological innovation on revolutionizing mapping. Android, like we talked about. YouTube, like we talked about. AdSense, Google Translate for the academic mind…
So if you move around ever so slightly, and I hold still, you see a different perspective here. You see kind of things that were included become revealed. You see shadows that move in the way they should move. All of that’s computed and generated using our AI video model for you. It’s based on your eye position, where does the right scene need to be placed in this light field display for you just to feel present?
And the productivity multiplier framework that I mentioned in the episode, I think is a nice way to try to concretize the impact of each of these inventions under consideration. And we have to remember that each node in the network of the fast follow-on inventions is in itself a productivity multiplier. Some are additive, some are multiplicative. So in some sense, the size of the network in the package is the thing that matters when you’re trying to rank the impact of inventions on human history. The easy picks for the period of biggest transformation, at least in sort of modern day discourse is the Industrial Revolution, or even in the 20th century, the computer or the internet. I think it’s because it’s easiest to intuit for modern day humans, the exponential impact of those technologies.
But recently, I suppose this changes week to week, but I have been doing a lot of reading on ancient human history. So recently my pick for the number one invention would have to be the first agricultural revolution, the Neolithic package that led to the formation of human civilizations. That’s what enabled the scaling of the collective intelligence machine of humanity, and for us to become the early bootloader for the next 10,000 years of technological progress, which yes, includes AI and the tech that builds on top of AI. And of course it could be argued that the word invention doesn’t properly apply to the agricultural revolution. I think actually Yuval Noah Harari argues that it wasn’t the humans who were the inventors, but a handful of plant species, namely wheat, rice and potatoes. This is strictly a fair perspective. But I’m having fun, like I said, with this discussion. Here, I just think of the entire earth as a system that continuously transforms. And I’m using the term invention in that context. Asking the question of when was the biggest leap on the log-scale plot of human progress?
Will AI, AGI, ASI eventually take the number one spot on this ranking? I think it has a very good chance to do so due again to the size of the network of inventions that will come along with it. I think we discuss in this podcast the kind of things that would be included in the so-called AI package. But I think there’s a lot more possibilities, including discussed in previous podcasts and many previous podcasts, including with Dario Amodei, talking on the biological innovation side, the science progress side. And this podcast, I think we talk about something that I’m particularly excited about in the near term, which is unlocking the cognitive capacity of the entire landscape of brains that is the human species. Making it more accessible through education and through machine translation, making information, knowledge and the rapid learning and innovation process accessible to more humans, to the entire 8 billion, if you will. So I do think language or machine translation apply to all the different methods that we use on the internet to discover knowledge is a big unlock. But there are a lot of other stuff in the so-called AI package like discussed with Dario, curing all major human diseases. He really focuses on that in The Machines of Love and Grace essay. I think there will be huge leaps in productivity for human programmers and semi-autonomous human programmers. So humans in the loop, but most of the programming is done by AI agents. And then moving that towards a superhuman AI researcher that’s doing the research that develops and programs the AI system in itself. I think there’ll be huge transformative effects from autonomous vehicles. These are the things that we maybe don’t immediately understand, or we understand from an economics perspective, but there will be a point when AI systems are able to interpret, understand, interact with the human world to sufficient degree to where many of the manually controlled human in the loop systems we rely on become fully autonomous.
And I think mobility is such a big part of human civilization that there will be effects on that, that they’re not just economic, but are social cultural and so on. And there’s a lot more things I could talk about for a long time. So obviously the integration utilization of AI in the creation of art, film, music, I think the digitalization and automating basic functions of government, and then integrating AI into that process, thereby decreasing corruption and costs and increasing transparency and efficiency. I think we as humans, individual humans, will continue to transition further and further into cyborgs. There’s already a AI in the loop of the human condition, and that will become increasingly so as AI becomes more powerful. The thing I’m obviously really excited about is major breakthroughs in science, and not just on the medical front but on fundamental physics, which would then lead to energy breakthroughs increasing the chance that we become, we actually become a Kardashev Type I civilization. And then enabling us in so doing to do interstellar exploration of space and colonization of space. I think there also in the near term, much like with the industrial revolution that led to rapid specialization of skills of expertise, there might be a great sort of de-specialization. So as the AI system become superhuman experts at particular fields, there might be greater and greater value to being the integrator of AIs for humans to be generalists. And so the great value of the human mind will come from the generalists, not the specialists. That’s a real possibility that that changes the way we are about the world, that we want to know a little bit of a lot of things and move about the world in that way. That could have when passing a certain threshold, a complete shift in who we are as a collective intelligence as a human species. Also as an aside, when thinking about the invention that was the greatest in human history, again for a bit of fun, we have to remember that all of them build on top of each other.
And so we need to look at the Delta, the step change on the, I would say impossibly to perfectly measure plot of exponential human progress. Really we can go back to the entire history of life on earth. And a previous podcast guest, Nick Lane does a great job of this in his book Life Ascending, listing these 10 major inventions throughout the evolution of life on earth like DNA, photosynthesis, complex cells, sex, movement, sight, all those kinds of things. I forget the full list that’s on there. But I think that’s so far from the human experience that my intuition about, let’s say productivity multipliers of those particular inventions completely breaks down, and a different framework is needed to understand the impact of these inventions of evolution. The origin of life on Earth, or even the Big Bang itself of course is the OG invention that set the stage for all the rest of it. And there are probably many more turtles under that which are yet to be discovered.
So anyway, we live in interesting times, fellow humans. I do believe the set of positive trajectories for humanity outnumber the set of negative trajectories, but not by much. So let’s not mess this up. And now let me leave you with some words from French philosopher Jean de La Bruyère, “Out of difficulties, grow miracles.” Thank you for listening, and hope to see you next time.
Click link to jump approximately to that part in the transcript:
- 0:00 – Episode highlight
- 2:08 – Introduction
- 2:18 – Growing up in India
- 8:27 – Advice for young people
- 10:09 – Styles of leadership
- 14:29 – Impact of AI in human history
- 26:39 – Veo 3 and future of video
- 34:24 – Scaling laws
- 38:09 – AGI and ASI
- 44:33 – P(doom)
- 51:24 – Toughest leadership decisions
- 1:02:32 – AI mode vs Google Search
- 1:15:22 – Google Chrome
- 1:30:52 – Programming
- 1:37:37 – Android
- 1:42:49 – Questions for AGI
- 1:48:05 – Future of humanity
- 1:51:26 – Demo: Google Beam
- 1:59:09 – Demo: Google XR Glasses
- 2:01:54 – Biggest invention in human history
Episode highlight
Sundar Pichai
It was a five-year waiting list, and we got a rotary telephone. But it dramatically changed our lives. People would come to our house to make calls to their loved ones. I would have to go all the way to the hospital to get blood test records and it would take two hours to go and they would say, “Sorry, it’s not ready. Come back the next day.”, two hours to come back. And that became a five-minute thing. So as a kid, this light bulb went in my head, this power of technology to change people’s lives.
It was a five-year waiting list, and we got a rotary telephone. But it dramatically changed our lives. People would come to our house to make calls to their loved ones. I would have to go all the way to the hospital to get blood test records and it would take two hours to go and they would say, “Sorry, it’s not ready. Come back the next day.”, two hours to come back. And that became a five-minute thing. So as a kid, this light bulb went in my head, this power of technology to change people’s lives.
We had no running water. It was a massive drought, so they would get water in these trucks, maybe eight buckets per household. So me and my brother, sometimes my mom, we would wait in line, get that and bring it back home. Many years later, we had running water and we had a water heater, and you could get hot water to take a shower. For me, everything was discreet like that.
So, I’ve always had this thing, first-hand feeling of how technology can dramatically change your life, and the opportunity it brings. I think if p(doom) is actually high, at some point, all of humanity is aligned in making sure that’s not the case, and so we’ll actually make more progress against it, I think. So the irony is there is a self-modulating aspect there. I think if humanity collectively puts their mind to solving a problem, whatever it is, I think we can get there.
Because of that, I think I’m optimistic on the p(doom) scenarios, but that doesn’t mean I think the underlying risk is actually pretty high. But I have a lot of faith in humanity rising up to meet that moment.
Lex Fridman
Take me through that experience, when there’s all these articles saying, ” You’re the wrong guy to lead Google through this. Google’s lost. It’s done. It’s over.”
Take me through that experience, when there’s all these articles saying, ” You’re the wrong guy to lead Google through this. Google’s lost. It’s done. It’s over.”
Introduction
Lex Fridman
The following is a conversation with Sundar Pichai, the CEO of Google and Alphabet on this, the Lex Fridman podcast.
The following is a conversation with Sundar Pichai, the CEO of Google and Alphabet on this, the Lex Fridman podcast.
Growing up in India
Lex Fridman
Your life story is inspiring to a lot of people. It’s inspiring to me. You grew up in India, whole family living in a humble two-room apartment, very little, almost no access to technology. And from those humble beginnings, you rose to lead a $2 trillion technology company.
Your life story is inspiring to a lot of people. It’s inspiring to me. You grew up in India, whole family living in a humble two-room apartment, very little, almost no access to technology. And from those humble beginnings, you rose to lead a $2 trillion technology company.
If you could travel back in time and told that, let’s say, twelve-year-old Sundar that you’re now leading one of the largest companies in human history, what do you think that young kid would say?
Sundar Pichai
I would’ve probably laughed it off. Probably too far-fetched to imagine or believe at that time.
I would’ve probably laughed it off. Probably too far-fetched to imagine or believe at that time.
Lex Fridman
You would have to explain the internet first.
You would have to explain the internet first.
Sundar Pichai
For sure. Computers to me, at that time, I was 12 in 1984, so probably… By then, I’d started reading about them, but I hadn’t seen one.
For sure. Computers to me, at that time, I was 12 in 1984, so probably… By then, I’d started reading about them, but I hadn’t seen one.
Lex Fridman
What was that place like? Take me to your childhood.
What was that place like? Take me to your childhood.
Sundar Pichai
I grew up in Chennai. It’s in south of India. It’s a beautiful, bustling city, lots of people, lots of energy, simple life. Definitely fond memories of playing cricket outside the home. We just used to play on the streets. All the neighborhood kids would come out and we would play until it got dark and we couldn’t play anymore, barefoot. Traffic would come. We would just stop the game. Everything would drive through and you would just continue playing, just to get the visual in your head.
I grew up in Chennai. It’s in south of India. It’s a beautiful, bustling city, lots of people, lots of energy, simple life. Definitely fond memories of playing cricket outside the home. We just used to play on the streets. All the neighborhood kids would come out and we would play until it got dark and we couldn’t play anymore, barefoot. Traffic would come. We would just stop the game. Everything would drive through and you would just continue playing, just to get the visual in your head.
Pre computers, there a lot of free time, now that I think about it. Now you have to go and seek that quiet solitude or something. Newspapers, books is how I gained access to the world’s information at the time [inaudible 00:04:06].
My grandfather was a big influence. He worked in the post office. He was so good with language. His English… His handwriting, till today, is the most beautiful handwriting I’ve ever seen. He would write so clearly. He was so articulate, and so he got me introduced into books. He loved politics. We could talk about anything.
That was there in my family throughout. Lots of books, trashy books, good books, everything from Ayn Rand to books on philosophy to stupid crime novels. Books was a big part of my life, but the soul, it’s not surprising I ended up at Google, because Google’s mission always resonated deeply with me. This access to knowledge, I was hungry for it.
But definitely have fond memories of my childhood. Access to knowledge was there, so that’s the wealth we had. Every aspect of technology I had to wait for a while. I’ve obviously spoken before about how long it took for us to get a phone, about five years, but it’s not the only thing.
Lex Fridman
A telephone?
A telephone?
Sundar Pichai
There was a five-year waiting list, and we got a rotary telephone. But it dramatically changed our lives. People would come to our house to make calls to their loved ones. I would have to go all the way to the hospital to get blood test records, and it would take two hours to go and they would say, “Sorry, it’s not ready. Come back the next day.”, two hours to come back. And that became a five-minute thing. So as a kid, this light bulb went in my head, this power of technology to change people’s lives.
There was a five-year waiting list, and we got a rotary telephone. But it dramatically changed our lives. People would come to our house to make calls to their loved ones. I would have to go all the way to the hospital to get blood test records, and it would take two hours to go and they would say, “Sorry, it’s not ready. Come back the next day.”, two hours to come back. And that became a five-minute thing. So as a kid, this light bulb went in my head, this power of technology to change people’s lives.
We had no running water. It was a massive drought, so they would get water in these trucks, maybe eight buckets per household. So me and my brother, sometimes my mom, we would wait in line, get that and bring it back home. Many years later, we had running water and we had a water heater, and you could get hot water to take a shower. For me, everything was discreet like that. So, I’ve always had this thing, first-hand feeling of how technology can dramatically change your life, and the opportunity it brings. That was a subliminal takeaway for me throughout growing up. I actually observed it and felt it.
We had to convince my dad for a long time to get a VCR. Do you know what a VCR is?
Lex Fridman
Yes.
Yes.
Sundar Pichai
I’m trying to date you now. Because before that, you only had one TV channel. That’s it. So, you can watch movies or something like that, but this was by the time I was in 12th grade, we got a VCR. It was a Panasonic, which we had to go to some shop which had smuggled it in, I guess, and that’s where we bought a VCR. But then being able to record a World Cup football game or get bootleg videotapes and watch movies, all that.
I’m trying to date you now. Because before that, you only had one TV channel. That’s it. So, you can watch movies or something like that, but this was by the time I was in 12th grade, we got a VCR. It was a Panasonic, which we had to go to some shop which had smuggled it in, I guess, and that’s where we bought a VCR. But then being able to record a World Cup football game or get bootleg videotapes and watch movies, all that.
So I had these discrete memories growing up, and so always left me with the feeling of how getting access to technology drives that step change in your life.
Lex Fridman
I don’t think you’ll ever be able to equal the first time you get hot water.
I don’t think you’ll ever be able to equal the first time you get hot water.
Sundar Pichai
To have that convenience of going and opening a tap and have hot water come out? Yeah.
To have that convenience of going and opening a tap and have hot water come out? Yeah.
Lex Fridman
It’s interesting. We take for granted the progress we’ve made. If you look at human history, just those plots that look at GDP across 2,000 years, and you see that exponential growth to where most of the progress happened since the Industrial Revolution, and we just take for granted, we forget how far we’ve gone. So, our ability to understand how great we have it and also how quickly technology can improve is quite poor.
It’s interesting. We take for granted the progress we’ve made. If you look at human history, just those plots that look at GDP across 2,000 years, and you see that exponential growth to where most of the progress happened since the Industrial Revolution, and we just take for granted, we forget how far we’ve gone. So, our ability to understand how great we have it and also how quickly technology can improve is quite poor.
Sundar Pichai
Oh. I mean, it’s extraordinary. I go back to India now, the power of mobile. It’s mind blowing to see the progress through the arc of time. It’s phenomenal.
Oh. I mean, it’s extraordinary. I go back to India now, the power of mobile. It’s mind blowing to see the progress through the arc of time. It’s phenomenal.
Advice for young people
Lex Fridman
What advice would you give to young folks listening to this all over the world, who look up to you and find your story inspiring, who want to be maybe the next Sundar Pichai, who want to start, create companies, build something that has a lot of impact in the world?
What advice would you give to young folks listening to this all over the world, who look up to you and find your story inspiring, who want to be maybe the next Sundar Pichai, who want to start, create companies, build something that has a lot of impact in the world?
Sundar Pichai
You have a lot of luck along the way, but you obviously have to make smart choices, you’re thinking about what you want to do, your brain is telling you something. But when you do things, I think it’s important to get that… Listen to your heart and see whether you actually enjoy doing it. That feeling of if you love what you do, it’s so much easier, and you’re going to see the best version of yourself. It’s easier said than done. I think it’s tough to find things you love doing. But I think listening to your heart a bit more than your mind in terms of figuring out what you want to do, I think is one of the best things I would tell people.
You have a lot of luck along the way, but you obviously have to make smart choices, you’re thinking about what you want to do, your brain is telling you something. But when you do things, I think it’s important to get that… Listen to your heart and see whether you actually enjoy doing it. That feeling of if you love what you do, it’s so much easier, and you’re going to see the best version of yourself. It’s easier said than done. I think it’s tough to find things you love doing. But I think listening to your heart a bit more than your mind in terms of figuring out what you want to do, I think is one of the best things I would tell people.
The second thing is trying to work with people who you feel… At various points in my life I’ve worked with people who I felt were better than me. You almost are sitting in a room talking to someone and they’re wow. you want that feeling a few times. Trying to get yourself in a position where you’re working with people who you feel are stretching your abilities is what helps you grow, I think, so putting yourself in uncomfortable situations. And I think often you’ll surprise yourself.
So, I think being open minded enough to put yourself in those positions is maybe another thing I would say.
Styles of leadership
Lex Fridman
What lessons can we learn? Maybe from an outsider perspective, for me, looking at your story and gotten to know you a bit, you’re humble, you’re kind. Usually when I think of somebody who has had a journey like yours and climbs to the very top of leadership in a cutthroat world, they’re usually going to be a bit of an asshole. What wisdom are we supposed to draw from the fact that your general approach is of balance, of humility, of kindness, listening to everybody. What’s your secret?
What lessons can we learn? Maybe from an outsider perspective, for me, looking at your story and gotten to know you a bit, you’re humble, you’re kind. Usually when I think of somebody who has had a journey like yours and climbs to the very top of leadership in a cutthroat world, they’re usually going to be a bit of an asshole. What wisdom are we supposed to draw from the fact that your general approach is of balance, of humility, of kindness, listening to everybody. What’s your secret?
Sundar Pichai
I do get angry. I do get frustrated. I have the same emotions all of us do in the context of work and everything. But a few things: I think I… Over time I figured out the best way to get the most out of people. You find mission-oriented people who are in the shared journey, who have this inner drive to excellence to do the best. You motivate people and you can achieve a lot that way. It often tends to work out that way.
I do get angry. I do get frustrated. I have the same emotions all of us do in the context of work and everything. But a few things: I think I… Over time I figured out the best way to get the most out of people. You find mission-oriented people who are in the shared journey, who have this inner drive to excellence to do the best. You motivate people and you can achieve a lot that way. It often tends to work out that way.
But have there been times I lose it? Yeah. Maybe less often than others, and maybe over the years less and less so, because I find it’s not needed to achieve what you need to do.
Lex Fridman
So, losing your shit has not been productive?
So, losing your shit has not been productive?
Sundar Pichai
Less often than not. I think people respond to that.
Less often than not. I think people respond to that.
Lex Fridman
Yeah.
Yeah.
Sundar Pichai
They may do stuff to react to that. You actually want them to do the right thing. I’m a sports fan. In soccer, not football, people often talk about man management. Great coaches do. I think there is an element of that in our lives. How do you get the best out of the people you work with?
They may do stuff to react to that. You actually want them to do the right thing. I’m a sports fan. In soccer, not football, people often talk about man management. Great coaches do. I think there is an element of that in our lives. How do you get the best out of the people you work with?
At times, you’re working with people who are so committed to achieving, if they’ve done something wrong, they feel it more than you do, so you treat them differently than… Occasionally, there are people who you need to clearly let them know that wasn’t okay or whatever it is. But I’ve often found that not to be the case.
Lex Fridman
And sometimes the right words at the right time spoken firmly can reverberate through time.
And sometimes the right words at the right time spoken firmly can reverberate through time.
Sundar Pichai
Also sometimes, the unspoken words. People can sometimes see that you’re unhappy without you saying it, and so sometimes the silence can deliver that message even more.
Also sometimes, the unspoken words. People can sometimes see that you’re unhappy without you saying it, and so sometimes the silence can deliver that message even more.
Lex Fridman
Sometimes less is more.
Sometimes less is more.
Who’s the greatest soccer player of all time? Messi, Ronaldo or Pelé or Maradona?
Sundar Pichai
I’m going to make… In this question…
I’m going to make… In this question…
Lex Fridman
Is this going to be a political answer, Sundar?
Is this going to be a political answer, Sundar?
Sundar Pichai
I’m not going to lie. I will tell the truthful answer, the truthful answer.
I’m not going to lie. I will tell the truthful answer, the truthful answer.
Lex Fridman
So it’s Messi, okay.
So it’s Messi, okay.
Sundar Pichai
It is. It’s been interesting. Because my son is a big Cristiano Ronaldo fan, and so we’ve had to watch El Clasicos together with that dynamic in there. I so admire CR7s. I mean, I’ve never seen an athlete more committed to that kind of excellence, and so he’s one of the all-time greats. But for me, Messi is it.
It is. It’s been interesting. Because my son is a big Cristiano Ronaldo fan, and so we’ve had to watch El Clasicos together with that dynamic in there. I so admire CR7s. I mean, I’ve never seen an athlete more committed to that kind of excellence, and so he’s one of the all-time greats. But for me, Messi is it.
Lex Fridman
When I see Lionel Messi, you just are in awe that humans are able to achieve that level of greatness and genius and artistry. We’ll talk about AI, maybe robotics and this kind of stuff, that level of genius, I’m not sure you can possibly match by AI in a long time. It’s just an example of greatness. And you have that kind of greatness in other disciplines, but in sport, you get to visually see it, unlike anything else. Just the timing, the movement, there’s just genius.
When I see Lionel Messi, you just are in awe that humans are able to achieve that level of greatness and genius and artistry. We’ll talk about AI, maybe robotics and this kind of stuff, that level of genius, I’m not sure you can possibly match by AI in a long time. It’s just an example of greatness. And you have that kind of greatness in other disciplines, but in sport, you get to visually see it, unlike anything else. Just the timing, the movement, there’s just genius.
Sundar Pichai
Had the chance to see him a couple of weeks ago. He played in San Jose against the Quakes, so I went to see the game. I had good seats, knew where he would play in the second half hopefully. And even at his age, just watching him when he gets the ball, that movement… You’re right, that special quality. It’s tough to describe, but you feel it when you see it, yeah.
Had the chance to see him a couple of weeks ago. He played in San Jose against the Quakes, so I went to see the game. I had good seats, knew where he would play in the second half hopefully. And even at his age, just watching him when he gets the ball, that movement… You’re right, that special quality. It’s tough to describe, but you feel it when you see it, yeah.
Impact of AI in human history
Lex Fridman
He’s still got it. If we rank all the technological innovations throughout human history… Let’s go back maybe the history of human civilizations, 12,000 years ago, and you rank them by how much of a productivity multiplier they’ve been. We can go to electricity or the labor mechanization of the Industrial Revolution, or we can go back to the first Agricultural Revolution 12,000 years ago. In that long list of inventions, do you think AI… When history is written 1,000 years from now, do you think it has a chance to be the number one productivity multiplier?
He’s still got it. If we rank all the technological innovations throughout human history… Let’s go back maybe the history of human civilizations, 12,000 years ago, and you rank them by how much of a productivity multiplier they’ve been. We can go to electricity or the labor mechanization of the Industrial Revolution, or we can go back to the first Agricultural Revolution 12,000 years ago. In that long list of inventions, do you think AI… When history is written 1,000 years from now, do you think it has a chance to be the number one productivity multiplier?
Sundar Pichai
It’s a great question. Many years ago, I think it might’ve been 2017 or 2018, I said at the time, AI is the most profound technology humanity will ever work on. It’ll be more profound than fire or electricity. So, I have to back myself. I still think that’s the case.
It’s a great question. Many years ago, I think it might’ve been 2017 or 2018, I said at the time, AI is the most profound technology humanity will ever work on. It’ll be more profound than fire or electricity. So, I have to back myself. I still think that’s the case.
When you ask this question, I was thinking, do we have a recency bias? In sports, it’s very tempting to call the current person you’re seeing the greatest…
Lex Fridman
Yes.
Yes.
Sundar Pichai
… player. Is there a recency bias? I do think, from first principles I would argue, AI will be bigger than all of those. I didn’t live through those moments. Two years ago, I had to go through a surgery, and then I processed that. There was a point in time people didn’t have anesthesia when they went through these procedures. At that moment, I was like, that has got to be the greatest invention humanity has ever, ever done. We don’t know what it is to have lived through those times.
… player. Is there a recency bias? I do think, from first principles I would argue, AI will be bigger than all of those. I didn’t live through those moments. Two years ago, I had to go through a surgery, and then I processed that. There was a point in time people didn’t have anesthesia when they went through these procedures. At that moment, I was like, that has got to be the greatest invention humanity has ever, ever done. We don’t know what it is to have lived through those times.
Many of what you’re talking about were this general things, which pretty much affected everything: electricity or internet, et cetera. But I don’t think we’ve ever dealt with the technology both which is progressing so fast, becoming so capable it’s not clear what the ceiling is, and the main, unique…. It’s recursively self-improving, it’s capable of that.
The fact it is the first technology will dramatically accelerate creation itself, like creating things, building new things, can improve and achieve things on its own, I think puts it in a different. So, I think the impact it’ll end up having will far surpass everything we’ve seen before. Obviously, with that comes a lot of important things to think and wrestle with, but I definitely think that’ll end up being the case.
Lex Fridman
Especially if it gets to the point of where we can achieve superhuman performance on the AI research itself. So, it’s a technology that may… It’s an open question, but it may be able to achieve a level to where the technology itself can create itself better than it could yesterday.
Especially if it gets to the point of where we can achieve superhuman performance on the AI research itself. So, it’s a technology that may… It’s an open question, but it may be able to achieve a level to where the technology itself can create itself better than it could yesterday.
Sundar Pichai
It’s like the move 37 of Alpha research or whatever it is.
It’s like the move 37 of Alpha research or whatever it is.
Lex Fridman
Yeah.
Yeah.
Sundar Pichai
You’re right, when it can do novel, self-directed research. Obviously, for a long time we’ll have hopefully always humans in the loop and all that stuff. These are complex questions to talk about. But yes, I think the underlying technology… I’ve said this, if you watched seeing AlphaGo start from scratch, be clueless, and become better through the course of a day, really, it hits you when you see that happen.
You’re right, when it can do novel, self-directed research. Obviously, for a long time we’ll have hopefully always humans in the loop and all that stuff. These are complex questions to talk about. But yes, I think the underlying technology… I’ve said this, if you watched seeing AlphaGo start from scratch, be clueless, and become better through the course of a day, really, it hits you when you see that happen.
Even the Veo 3 models, if you sample the models when they were 30% done and 60% done, and looked at what they were generating, and you see how it all comes together, I would say it’s inspiring, a little bit unsettling, as a human. So all of that is true, I think.
Lex Fridman
The interesting thing of the Industrial Revolution, electricity, like you mentioned. You can go back to, again, the first Agricultural Revolution, there’s what’s called the Neolithic package of the first Agricultural Revolution. It wasn’t just that the nomads settled down and started planting food, but all this other kinds of technology was born from that, and it’s included this package. So, it wasn’t one piece of technology.
The interesting thing of the Industrial Revolution, electricity, like you mentioned. You can go back to, again, the first Agricultural Revolution, there’s what’s called the Neolithic package of the first Agricultural Revolution. It wasn’t just that the nomads settled down and started planting food, but all this other kinds of technology was born from that, and it’s included this package. So, it wasn’t one piece of technology.
There’s these ripple effects, second- and third-order effects that happen, everything from something profound like pottery, it can store liquids and food, to something we take for granted: social hierarchies and political hierarchies. Early government was formed. Because it turns out if humans stop moving and have some surplus food, they get bored and they start coming up with interesting systems. And then trade emerges, which turns out to be a really profound thing, and like I said, government. Second- and third-order effects from that, including that package, is incredible and probably extremely difficult. If you ask one of the people in the nomadic tribes to predict that, it would be impossible, and it’s difficult to predict.
But all that said, what do you think are some of the early things we might see in the, quote, unquote, “AI package”?
Sundar Pichai
Most of it probably we don’t know today, but the one thing which we can tangibly start seeing now is… Obviously with the coding progress, you got a sense of it. It’s going to be so easy to imagine… Thoughts in your head, translating that into things that exist. That’ll be part of the package. It’s going to empower almost all of humanity to express themselves.
Most of it probably we don’t know today, but the one thing which we can tangibly start seeing now is… Obviously with the coding progress, you got a sense of it. It’s going to be so easy to imagine… Thoughts in your head, translating that into things that exist. That’ll be part of the package. It’s going to empower almost all of humanity to express themselves.
Maybe in the past you could have expressed with words, but you could build things into existence. Maybe not fully today, we are at the early stages of vibe coding. I’ve been amazed at what people have put out online with Veo 3. But it takes a bit of work, you have to stitch together a set of prompts. But all this is going to get better. The thing I always think: this is the worst it’ll ever be, at any given moment in time.
Lex Fridman
It’s interesting you went there as a first thought: an exponential increase of access to creativity.
It’s interesting you went there as a first thought: an exponential increase of access to creativity.
Sundar Pichai
Software, creation… Are you creating a program, a piece of content to be shared with others, games down the line? All of that just becomes infinitely more possible.
Software, creation… Are you creating a program, a piece of content to be shared with others, games down the line? All of that just becomes infinitely more possible.
Lex Fridman
I think the big thing is that it makes it accessible. It unlocks the cognitive capabilities of the entire 8 billion.
I think the big thing is that it makes it accessible. It unlocks the cognitive capabilities of the entire 8 billion.
Sundar Pichai
I agree. Think about 40 years ago, maybe in the US there were five people who could do what you were doing.
I agree. Think about 40 years ago, maybe in the US there were five people who could do what you were doing.
Lex Fridman
Mm-hmm.
Mm-hmm.
Sundar Pichai
Go do a interview… But today, think about, with YouTube and other products, et cetera, how many more people are doing it. I think this is what technology does. When the internet created blogs, you heard from so many more people. But with AI, I think that number won’t be in the few hundreds of thousands. It’ll be tens of millions of people, maybe even a billion people putting out things into the world in a deeper way.
Go do a interview… But today, think about, with YouTube and other products, et cetera, how many more people are doing it. I think this is what technology does. When the internet created blogs, you heard from so many more people. But with AI, I think that number won’t be in the few hundreds of thousands. It’ll be tens of millions of people, maybe even a billion people putting out things into the world in a deeper way.
Lex Fridman
And I think it’ll change the landscape of creativity. And it makes a lot of people nervous. For example, whatever, Fox, MSNBC, CNN are really nervous about this podcast. You mean this dude in a suit could just do this? And YouTube and thousands of others, tens of thousands, millions of other creators can do the same kind of thing? That makes them nervous. And now you get a podcast from Notebook LM that’s about five to 10 times better than any podcast I’ve ever done.
And I think it’ll change the landscape of creativity. And it makes a lot of people nervous. For example, whatever, Fox, MSNBC, CNN are really nervous about this podcast. You mean this dude in a suit could just do this? And YouTube and thousands of others, tens of thousands, millions of other creators can do the same kind of thing? That makes them nervous. And now you get a podcast from Notebook LM that’s about five to 10 times better than any podcast I’ve ever done.
Sundar Pichai
Not true, but yeah.
Not true, but yeah.
Lex Fridman
I’m joking at this time, but maybe not. And that changes. You have to evolve. On the podcasting front, I’m a fan of podcasts much more than I am a fan of being a host or whatever. If there’s great podcasts that are both AIs, I’ll just stop doing this podcast. I’ll listen to that podcast. But you have to evolve and you have to change, and that makes people really nervous, I think. But it’s also really exciting future.
I’m joking at this time, but maybe not. And that changes. You have to evolve. On the podcasting front, I’m a fan of podcasts much more than I am a fan of being a host or whatever. If there’s great podcasts that are both AIs, I’ll just stop doing this podcast. I’ll listen to that podcast. But you have to evolve and you have to change, and that makes people really nervous, I think. But it’s also really exciting future.
Sundar Pichai
The one thing I may say is, I do think in a world in which there are two AI, I think people value and choose… Just like in chess, you and I would never watch Stockfish 10 or whatever and AlphaGo play against each… It would be boring for us to watch. But Magnus Carlsen and Gukesh, that game would be much more fascinating to watch. So, it’s tough to say.
The one thing I may say is, I do think in a world in which there are two AI, I think people value and choose… Just like in chess, you and I would never watch Stockfish 10 or whatever and AlphaGo play against each… It would be boring for us to watch. But Magnus Carlsen and Gukesh, that game would be much more fascinating to watch. So, it’s tough to say.
One way to say is you’ll have a lot more content, and so you will be listening to AI-generated content because sometimes it’s efficient, et cetera. But the premium experiences you value might be a version of the human essence wherever it comes through. Going back to what we talked earlier about watching Messi dribble the ball, I don’t know, one day I’m sure a machine will dribble much better than Messi. But I don’t know whether it would evoke that same emotion in us, so I think that’ll be fascinating to see.
Lex Fridman
I think the element of podcasting or audio books that is about information gathering, that part might be removed, or that might be more efficiently and in a compelling way done by AI. But then it’ll be just nice to hear humans struggle with the information, contend with the information, try to internalize it, combine it with the complexity of our own emotions and consciousness and all that kind of stuff. But if you actually want to find out about a piece of history, you go to Gemini. If you want to see Lex struggle with that history, or other humans, you look at that.
I think the element of podcasting or audio books that is about information gathering, that part might be removed, or that might be more efficiently and in a compelling way done by AI. But then it’ll be just nice to hear humans struggle with the information, contend with the information, try to internalize it, combine it with the complexity of our own emotions and consciousness and all that kind of stuff. But if you actually want to find out about a piece of history, you go to Gemini. If you want to see Lex struggle with that history, or other humans, you look at that.
The point is, it’s going to continue to change the nature of how we discover information, how we consume the information, how we create that information, the same way that YouTube changed everything completely. It changed the news. And that’s something our society’s struggling with.
Sundar Pichai
YouTube enabled… You know this better than anyone else. It’s enabled so many creators. There is no doubt in me that we will enable more filmmakers than have ever been. You’re going to empower a lot more people. So I think there is an expansionary aspect of this, which is underestimated, I think. I think it’ll unleash human creativity in a way that hasn’t been seen before. It’s tough to internalize. The only way is if you brought someone from the ’50s or ’40s and just put them in front of YouTube, I think it would blow their mind away. Similarly, I think we would get blown away by what’s possible in a 10- to 20-year timeframe.
YouTube enabled… You know this better than anyone else. It’s enabled so many creators. There is no doubt in me that we will enable more filmmakers than have ever been. You’re going to empower a lot more people. So I think there is an expansionary aspect of this, which is underestimated, I think. I think it’ll unleash human creativity in a way that hasn’t been seen before. It’s tough to internalize. The only way is if you brought someone from the ’50s or ’40s and just put them in front of YouTube, I think it would blow their mind away. Similarly, I think we would get blown away by what’s possible in a 10- to 20-year timeframe.
Lex Fridman
Do you think there’s a future? How many years out is it that, let’s say… Let’s put a marker on it… 50% of good content is generated by Veo 4, 5, 6?
Do you think there’s a future? How many years out is it that, let’s say… Let’s put a marker on it… 50% of good content is generated by Veo 4, 5, 6?
Sundar Pichai
I think it depends on what it is for. Maybe if you look at movies today with CGI, there are great filmmakers. You still look at who the directors are and who use it. There are filmmakers who don’t use it at all. You value that. There are people who use it incredibly. Think about somebody like a James Cameron, like what he would do with these tools in his hands.
I think it depends on what it is for. Maybe if you look at movies today with CGI, there are great filmmakers. You still look at who the directors are and who use it. There are filmmakers who don’t use it at all. You value that. There are people who use it incredibly. Think about somebody like a James Cameron, like what he would do with these tools in his hands.
But I think there’ll be a lot more content created. Just like writers today use Google Docs and not think about the fact that they’re using a tool like that, people will be using the future versions of these things. It won’t be a big deal at all to them.
Veo 3 and future of video
Lex Fridman
I’ve gotten a chance to get to know Darren Aronofsky. He’s been really leaning in and trying to figure out… It’s fun to watch a genius who came up before any of this was even remotely possible. He created Pi, one of my favorite movies. And from there, he just continued to create a really interesting variety of movies. And now he’s trying to see how can AI be used to create compelling films. You have people like that.
I’ve gotten a chance to get to know Darren Aronofsky. He’s been really leaning in and trying to figure out… It’s fun to watch a genius who came up before any of this was even remotely possible. He created Pi, one of my favorite movies. And from there, he just continued to create a really interesting variety of movies. And now he’s trying to see how can AI be used to create compelling films. You have people like that.
You have people I’ve gotten just to know, edgier folks, they are AI firsts, like Dor Brothers. Both Aronofsky and Dor Brothers create at the edge of the Overton window society. They push, whether it’s sexuality or violence. It’s edgy, like artists are, but it’s still classy. It doesn’t cross that line. Whatever that line is. Hunter S. Thompson has this line, “The only way to find out where the edge, where the line is, is by crossing it.” And I think for artists, that’s true. That’s their purpose sometimes. Comedians and artists just cross that line.
I wonder if you can comment on the weird place that it puts Google. Because Google’s line is probably different than some of these artists. How do you think about, specifically Veo and Flow, how to allow artists to do crazy shit, but also the responsibility for it not to be too crazy?
Sundar Pichai
It’s a great question. You mentioned Darren. He’s a clear visionary. Part of the reason we started working with him early on Veo is, he’s one of those people who’s able to see that future, get inspired by it, and showing the way for how creative people can express themselves with it. I think when it comes to allowing artistic free expression… It’s one of the most important values in a society, I think. Artists have always been the ones to push boundaries, expand the frontiers of thought.
It’s a great question. You mentioned Darren. He’s a clear visionary. Part of the reason we started working with him early on Veo is, he’s one of those people who’s able to see that future, get inspired by it, and showing the way for how creative people can express themselves with it. I think when it comes to allowing artistic free expression… It’s one of the most important values in a society, I think. Artists have always been the ones to push boundaries, expand the frontiers of thought.
I think that’s going to be an important value we have, so I think we will provide tools and put it in the hands of artists for them to use and put out their work. Those APIs, I almost think of that as infrastructure. Just like when you provide electricity to people or something, you want them to use it, and you’re not thinking about the use cases on top of it.
Lex Fridman
It’s a paintbrush.
It’s a paintbrush.
Sundar Pichai
Yeah. So, I think that’s how. Obviously, there have to be some things. And society needs to decide at a fundamental level what’s okay, what’s not, will be responsible with it. But I do think when it comes to artistic free expression, I think that’s one of those values we should work hard to defend.
Yeah. So, I think that’s how. Obviously, there have to be some things. And society needs to decide at a fundamental level what’s okay, what’s not, will be responsible with it. But I do think when it comes to artistic free expression, I think that’s one of those values we should work hard to defend.
Lex Fridman
I wonder if you can comment on maybe earlier versions of Gemini were a little bit careful on the kind of things it’d be willing to answer. I just want to comment on I was really surprised, and pleasantly surprised, and enjoy the fact that Gemini 2.5 Pro is a lot less careful, in a good sense. Don’t ask me why, but I’ve been doing a lot of research on Genghis Khan and the Aztecs, so there’s a lot of violence there in that history. It’s a very violent history. I’ve also been doing a lot of research on World War I and World War II.
I wonder if you can comment on maybe earlier versions of Gemini were a little bit careful on the kind of things it’d be willing to answer. I just want to comment on I was really surprised, and pleasantly surprised, and enjoy the fact that Gemini 2.5 Pro is a lot less careful, in a good sense. Don’t ask me why, but I’ve been doing a lot of research on Genghis Khan and the Aztecs, so there’s a lot of violence there in that history. It’s a very violent history. I’ve also been doing a lot of research on World War I and World War II.
Earlier versions of Gemini were very… Basically this sense, are you sure you want to learn about this. And now, it’s actually very factual, objective, talks about very difficult parts of human history, and does so with nuance and depth. It’s been really nice. But there’s a line there that I guess Google has to walk. And it’s also an engineering challenge how to do that at scale across all the weird queries that people ask.
Can you just speak to that challenge? How do you allow Gemini to say… Again, forgive, pardon my French… crazy shit, but not too crazy?
Sundar Pichai
I think one of the good insights here has been as the models are getting more capable, the models are really good at this stuff. And so I think in some ways, maybe a year ago, the models weren’t fully there, so they would also do stupid things more often. So you’re trying to handle those edge cases, but then you make a mistake in how you handle those edge cases and it compounds. But I think with 2.5, what we particularly found is once the models cross a certain level of intelligence and sophistication, they are able to reason through these nuanced issues pretty well.
I think one of the good insights here has been as the models are getting more capable, the models are really good at this stuff. And so I think in some ways, maybe a year ago, the models weren’t fully there, so they would also do stupid things more often. So you’re trying to handle those edge cases, but then you make a mistake in how you handle those edge cases and it compounds. But I think with 2.5, what we particularly found is once the models cross a certain level of intelligence and sophistication, they are able to reason through these nuanced issues pretty well.
And I think users really want that. You want as much access to the raw model as possible. I think it’s a great area to think about. Over time, we should allow more and more closer access to it. Obviously, let people custom prompts if they wanted to and experiment with it, et cetera. I think that’s an important direction.
The first principles we want to think about it is, from a scientific standpoint, making sure the models… And I’m saying scientific in the sense of how you would approach math or physics or something like that. From first principles, having the models reason about the world, be nuanced, et cetera, from the ground up is the right way to build these things, not some subset of humans hard-coding things on top of it. I think it’s the direction we’ve been taking and I think you’ll see us continue to push in that direction.
Lex Fridman
I took extensive notes and I gave them to Gemini and said, “Can you ask a novel question that’s not in these notes?”, and it wrote… Gemini continues to really surprise me, really surprise me. It’s been really beautiful. It’s an incredible model. The question it generated was, “You…”, meaning Sundar, “… told the world Gemini is churning out 480 trillion tokens a month. What’s the most life-changing, five-word sentence hiding in that haystack?”. That’s a Gemini question.
I took extensive notes and I gave them to Gemini and said, “Can you ask a novel question that’s not in these notes?”, and it wrote… Gemini continues to really surprise me, really surprise me. It’s been really beautiful. It’s an incredible model. The question it generated was, “You…”, meaning Sundar, “… told the world Gemini is churning out 480 trillion tokens a month. What’s the most life-changing, five-word sentence hiding in that haystack?”. That’s a Gemini question.
I don’t think you can answer that, but it woke me up to all of these tokens are providing little aha moments for people across the globe. So, that’s like learning. Those tokens are people are curious, they ask a question and they find something out, and it truly could be life-changing.
Sundar Pichai
Oh, it is. I had the same feeling about Search many, many years ago. These tokens per month has grown 50 times in the last 12 months.
Oh, it is. I had the same feeling about Search many, many years ago. These tokens per month has grown 50 times in the last 12 months.
Lex Fridman
Is that accurate, by the way? The 4…
Is that accurate, by the way? The 4…
Sundar Pichai
Yeah, it is. It is. It is accurate. I’m glad it got it right. But that number was 9.7 trillion tokens per month, 12 months ago. It’s gone up to 480. It’s a 50x…
Yeah, it is. It is. It is accurate. I’m glad it got it right. But that number was 9.7 trillion tokens per month, 12 months ago. It’s gone up to 480. It’s a 50x…
Sundar Pichai
… right, it’s gone up to 480, it’s a 50 X increase. So there’s no limit to human curiosity. And I think it’s one of those moments, I don’t think it is there today, but maybe one day there’s a five word phrase which says what the actual universe is or something like that and something very meaningful, but I don’t think we are quite there yet.
… right, it’s gone up to 480, it’s a 50 X increase. So there’s no limit to human curiosity. And I think it’s one of those moments, I don’t think it is there today, but maybe one day there’s a five word phrase which says what the actual universe is or something like that and something very meaningful, but I don’t think we are quite there yet.
Scaling laws
Lex Fridman
Do you think the scaling laws are holding strong on, there’s a lot of ways to describe the scaling laws for AI, but on the pre-training, on post-training fronts, so the flip side of that, do you anticipate AI progress will hit a wall? Is there a wall?
Do you think the scaling laws are holding strong on, there’s a lot of ways to describe the scaling laws for AI, but on the pre-training, on post-training fronts, so the flip side of that, do you anticipate AI progress will hit a wall? Is there a wall?
Sundar Pichai
It’s a cherished micro kitchen conversation, once in a while I have it, like when Demis is visiting or if Demis, Koray, Jeff, Norm, Sergey, a bunch of our people, we sit and talk about this. Look, we see a lot of headroom ahead, I think. We’ve been able to optimize and improve on all fronts, pre-training, post-training, test time compute, tool use, over time, making these more agentic. So getting these models to be more general world models in that direction.
It’s a cherished micro kitchen conversation, once in a while I have it, like when Demis is visiting or if Demis, Koray, Jeff, Norm, Sergey, a bunch of our people, we sit and talk about this. Look, we see a lot of headroom ahead, I think. We’ve been able to optimize and improve on all fronts, pre-training, post-training, test time compute, tool use, over time, making these more agentic. So getting these models to be more general world models in that direction.
Like Veo 3, the physics understanding is dramatically better than what Veo 1 or something like that was. So you kind of see on all those dimensions, I feel progress is very obvious to see and I feel like there is significant headroom. More importantly, I’m fortunate to work with some of the best researchers on the planet, they think there is more headroom to be had here. And so I think we have an exciting trajectory ahead. It’s tougher to say… Each year I sit and say, okay, we are going to throw 10 X more compute over the course of next year at it and will we see progress? Sitting here today, I feel like the year ahead will have a lot of progress.
Lex Fridman
And do you feel any limitations like the bottlenecks, compute limited, data limited, idea limited, do you feel any of those limitations or is it full steam ahead on all fronts?
And do you feel any limitations like the bottlenecks, compute limited, data limited, idea limited, do you feel any of those limitations or is it full steam ahead on all fronts?
Sundar Pichai
I think it’s compute limited in this sense, part of the reason you’ve seen us do Flash, Nano Flash and Pro models, but not an Ultra model, it’s like for each generation we feel like we’ve been able to get the Pro model at, I don’t know, 80, 90% of Ultra’s capability, but Ultra would be a lot more slow and lot more expensive to serve. But what we’ve been able to do is to go to the next generation and make the next generation’s Pro as good as the previous generation’s Ultra, but be able to serve it in a way that it’s fast and you can use it and so on. So I do think scaling laws are working, but it’s tough to get, at any given time, the models we all use the most, this maybe a few months behind the maximum capability we can deliver because that won’t be the fastest, easiest to use, et cetera.
I think it’s compute limited in this sense, part of the reason you’ve seen us do Flash, Nano Flash and Pro models, but not an Ultra model, it’s like for each generation we feel like we’ve been able to get the Pro model at, I don’t know, 80, 90% of Ultra’s capability, but Ultra would be a lot more slow and lot more expensive to serve. But what we’ve been able to do is to go to the next generation and make the next generation’s Pro as good as the previous generation’s Ultra, but be able to serve it in a way that it’s fast and you can use it and so on. So I do think scaling laws are working, but it’s tough to get, at any given time, the models we all use the most, this maybe a few months behind the maximum capability we can deliver because that won’t be the fastest, easiest to use, et cetera.
Lex Fridman
Also, that’s in terms of intelligence, it becomes harder and harder to measure ” performance” because you could argue Gemini Flash is much more impactful than Pro just because of the latency, it’s super intelligent already. I mean sometimes latency is maybe more important than intelligence, especially when the intelligence is just a little bit less and Flash not, it’s still incredibly smart model. And so you have to now start measuring impact and then it feels like benchmarks are less and less capable of capturing the intelligence of models, the effectiveness of models, the usefulness, the real world usefulness, of models.
Also, that’s in terms of intelligence, it becomes harder and harder to measure ” performance” because you could argue Gemini Flash is much more impactful than Pro just because of the latency, it’s super intelligent already. I mean sometimes latency is maybe more important than intelligence, especially when the intelligence is just a little bit less and Flash not, it’s still incredibly smart model. And so you have to now start measuring impact and then it feels like benchmarks are less and less capable of capturing the intelligence of models, the effectiveness of models, the usefulness, the real world usefulness, of models.
AGI and ASI
Another kitchen question. So lots of folks are talking about timelines for AGI or ASI, artificial super intelligence. So AGI loosely defined is basically human expert level at a lot of the main fields of pursuit for humans. And then ASI is what AGI becomes, presumably quickly, by being able to self-improve. So becoming far superior in intelligence across all these disciplines than humans. When do you think we’ll have AGI? It’s 2030 a possibility?
Sundar Pichai
There’s one other term we should throw in there. I don’t know who used it first, maybe Karpathy did, AJI. Have you heard AJI, the artificial jagged intelligence? Sometimes feels that way, both their progress and you see what they can do and then you can trivially find they make numerical errors or counting R’s in strawberry or something, which seems to trip up most models or whatever it is. So maybe we should throw that term in there. I feel like we are in the AJI phase where dramatic progress, some things don’t work well, but overall you’re seeing lots of progress.
There’s one other term we should throw in there. I don’t know who used it first, maybe Karpathy did, AJI. Have you heard AJI, the artificial jagged intelligence? Sometimes feels that way, both their progress and you see what they can do and then you can trivially find they make numerical errors or counting R’s in strawberry or something, which seems to trip up most models or whatever it is. So maybe we should throw that term in there. I feel like we are in the AJI phase where dramatic progress, some things don’t work well, but overall you’re seeing lots of progress.
But if your question is will it happen by 2030? Look, we constantly move the line of what it means to be AGI. There are moments today like sitting in a Waymo in a San Francisco street with all the crowds and the people and work its way through, I see glimpses of it there. The car is sometimes impatient, trying to work its way using Astra like in Gemini Live or asking questions about the world.
Speaker 1
What’s a skinny building doing in my neighborhood?
What’s a skinny building doing in my neighborhood?
Speaker 2
It’s a street light, not a building.
It’s a street light, not a building.
Sundar Pichai
You see glimpses, that’s why use the word AJI because then you see stuff which obviously we are far from AGI too, so you have both experiences simultaneously happening to you. I’ll answer your question, but I’ll also throw out this. I almost feel the term doesn’t matter, what I know is by 2030 there’ll be such dramatic progress. We’ll be dealing with the consequences of that progress, both the positive externalities and the negative externalities that come with it in a big way by 2030. So that I strongly feel.
You see glimpses, that’s why use the word AJI because then you see stuff which obviously we are far from AGI too, so you have both experiences simultaneously happening to you. I’ll answer your question, but I’ll also throw out this. I almost feel the term doesn’t matter, what I know is by 2030 there’ll be such dramatic progress. We’ll be dealing with the consequences of that progress, both the positive externalities and the negative externalities that come with it in a big way by 2030. So that I strongly feel.
Whatever, we may be arguing about the term or maybe Gemini can answer what that moment is in time in 2030, but I think the progress will be dramatic. So that I believe in. Will the AI think it has reached AGI by 2030? I would say we will just fall short of that timeline, so I think it’ll take a bit longer. It’s amazing, in the early days of Google DeepMind in 2010, they talked about a 20-year timeframe to achieve AGI, which is kind of fascinating to see, but for me, the whole thing, seeing what Google Brain did in 2012, and when we acquired DeepMind in 2014, right close to where we are sitting, in 2012, Jeff Dean showed the image of when the neural networks could recognize a picture of a cat and identify it. This is the early versions of Brain.
And so we all talked about couple decades. I don’t think we’ll quite get there by 2030, so my sense is it’s slightly after that, but I would stress it doesn’t matter what that definition is because you will have mind-blowing progress on many dimensions. Maybe AI can create videos. We have to figure out as a society, we need some system by which we all agree that this is AI-generated and we have to disclose it in a certain way because how do you distinguish reality otherwise?
Lex Fridman
Yeah, there’s so many interesting things you said. So first of all, just looking back at this recent, now feels like distant, history with Google Brain, I mean that was before TensorFlow, before TensorFlow was made public, and open-sourced. So the tooling matters too. Combined with GitHub, ability to share code. Then you have the ideas of a potential transformers and the diffusion now and then there might be a new idea that seems simple in retrospect but will change everything, and that could be the post-training, the inference time innovations.
Yeah, there’s so many interesting things you said. So first of all, just looking back at this recent, now feels like distant, history with Google Brain, I mean that was before TensorFlow, before TensorFlow was made public, and open-sourced. So the tooling matters too. Combined with GitHub, ability to share code. Then you have the ideas of a potential transformers and the diffusion now and then there might be a new idea that seems simple in retrospect but will change everything, and that could be the post-training, the inference time innovations.
And I think shadcn Tweeted that Google is just one great UI from completely winning the AI race, meaning UI is a huge part of it. How that intelligence, I think the [inaudible 00:42:45] Project likes to talk about this right now, it’s an LLM, but when is it going to become a system where you’re talking about shipping systems versus shipping a particular model? Yeah, that matters too, how the system manifests itself and how it presents itself to the world. That really, really matters
Sundar Pichai
Oh, hugely so. There are simple UI innovations which have changed the world and I absolutely think so. We will see a lot more progress in the next couple of years as I think AI itself on a self-improving track for UI itself. Today, we are constraining the models, the models can’t quite express themselves in terms of the UI to people. But if you think about it, we’ve kind of boxed them in that way, but given these models can code, they should be able to write the best interfaces to express their ideas over time.
Oh, hugely so. There are simple UI innovations which have changed the world and I absolutely think so. We will see a lot more progress in the next couple of years as I think AI itself on a self-improving track for UI itself. Today, we are constraining the models, the models can’t quite express themselves in terms of the UI to people. But if you think about it, we’ve kind of boxed them in that way, but given these models can code, they should be able to write the best interfaces to express their ideas over time.
Lex Fridman
That is an incredible idea. So the API is already open, so you create a really nice agentic system that continuously improves the way you can be talking to an AI. But a lot of that is the interface. And then of course the incredible multimodal aspect of the interface that Google has been pushing.
That is an incredible idea. So the API is already open, so you create a really nice agentic system that continuously improves the way you can be talking to an AI. But a lot of that is the interface. And then of course the incredible multimodal aspect of the interface that Google has been pushing.
Sundar Pichai
These models are natively multimodal. They can easily take content from any format, put it in any format, they can write a good user interface, they probably understand your preferences better over time. And so all this is the evolution ahead. And so that goes back to where we started the conversation, I think there’ll be dramatic evolutions in the years ahead.
These models are natively multimodal. They can easily take content from any format, put it in any format, they can write a good user interface, they probably understand your preferences better over time. And so all this is the evolution ahead. And so that goes back to where we started the conversation, I think there’ll be dramatic evolutions in the years ahead.
P(doom)
Lex Fridman
Maybe one more kitchen question. This even further ridiculous concept of p(doom). So the philosophically minded folks in the AI community, think about the probability that AGI and then ASI might destroy all of human civilization. I would say my p(doom) is about 10%. Do you ever think about this kind of long-term threat of ASI and what would your p(doom) be?
Maybe one more kitchen question. This even further ridiculous concept of p(doom). So the philosophically minded folks in the AI community, think about the probability that AGI and then ASI might destroy all of human civilization. I would say my p(doom) is about 10%. Do you ever think about this kind of long-term threat of ASI and what would your p(doom) be?
Sundar Pichai
Look, I mean for sure. Look, I’ve both been very excited about AI, but I’ve always felt this is a technology you have to actively think about the risks and work very, very hard to harness it in a way that it all works out well. On the p(doom) question, look, it wouldn’t surprise you to say that’s probably another micro kitchen conversation that pops up once in a while. And given how powerful the technology is maybe stepping back, when you’re running a large organization, if you can align the incentives of the organization, you can achieve pretty much anything. If you can get people all marching towards a goal, in a very focused way, in a mission-driven way, you can pretty much achieve anything.
Look, I mean for sure. Look, I’ve both been very excited about AI, but I’ve always felt this is a technology you have to actively think about the risks and work very, very hard to harness it in a way that it all works out well. On the p(doom) question, look, it wouldn’t surprise you to say that’s probably another micro kitchen conversation that pops up once in a while. And given how powerful the technology is maybe stepping back, when you’re running a large organization, if you can align the incentives of the organization, you can achieve pretty much anything. If you can get people all marching towards a goal, in a very focused way, in a mission-driven way, you can pretty much achieve anything.
But it’s very tough to organize all of humanity that way. But I think if p(doom) is actually high, at some point, all of humanity is aligned in making sure that’s not the case. And so we’ll actually make more progress against it, I think. So the irony is, so there is a self-modulating aspect there. I think if humanity collectively puts their mind to solving a problem, whatever, it is, I think we can get there. So because of that, I think I’m optimistic on the p(doom) scenarios, I think the underlying risk is actually pretty high, but I have a lot of faith in humanity kind of rising up to meet that moment.
Lex Fridman
That’s really, really, well put. I mean, as the threat becomes more concrete and real, humans do really come together and get their shit together. Well, the other thing I think people don’t often talk about is probability of doom without AI. So there’s all these other ways that humans can destroy themselves and it’s very possible, at least I believe so, that AI will help us become smarter, kinder to each other, more efficient. It’ll help more parts of the world flourish where it wouldn’t be less resource constrained, which is often the source of military conflict and tensions and so on. So we also have to load into that, what’s the [inaudible 00:47:22] without AI? p(doom) with AI, p(doom) without AI, because it’s very possible that AI will be the thing that saves us, saves human civilizations from all the other threats.
That’s really, really, well put. I mean, as the threat becomes more concrete and real, humans do really come together and get their shit together. Well, the other thing I think people don’t often talk about is probability of doom without AI. So there’s all these other ways that humans can destroy themselves and it’s very possible, at least I believe so, that AI will help us become smarter, kinder to each other, more efficient. It’ll help more parts of the world flourish where it wouldn’t be less resource constrained, which is often the source of military conflict and tensions and so on. So we also have to load into that, what’s the [inaudible 00:47:22] without AI? p(doom) with AI, p(doom) without AI, because it’s very possible that AI will be the thing that saves us, saves human civilizations from all the other threats.
Sundar Pichai
I agree with you. I think it’s insightful. Look, I felt to make progress on some of the toughest problems would be good to have AI, like Pear, helping you, and so that resonates with me for sure. Yeah.
I agree with you. I think it’s insightful. Look, I felt to make progress on some of the toughest problems would be good to have AI, like Pear, helping you, and so that resonates with me for sure. Yeah.
Lex Fridman
Quick pause, bathroom break? [inaudible 00:47:51].
Quick pause, bathroom break? [inaudible 00:47:51].
Sundar Pichai
Let’s do that.
Let’s do that.
Lex Fridman
If NotebookLM was the same, like what I saw today with Beam, if it was compelling in the same kind of way, blew my mind. It was incredible. I didn’t think it’s possible. I didn’t think it’s [inaudible 00:48:06].
If NotebookLM was the same, like what I saw today with Beam, if it was compelling in the same kind of way, blew my mind. It was incredible. I didn’t think it’s possible. I didn’t think it’s [inaudible 00:48:06].
Sundar Pichai
Can you imagine the US president and the Chinese president being able to do something like Beam with the live Meet translation working well, so they’re both sitting and talking, make progress a bit more.
Can you imagine the US president and the Chinese president being able to do something like Beam with the live Meet translation working well, so they’re both sitting and talking, make progress a bit more.
Lex Fridman
Just for people listening, we took a quick bathroom break and now we’re talking about the demo I did. We’ll probably post it somewhere somehow maybe here. I got a chance to experience Beam and it’s hard to describe in words how real it felt with just, what is it, six cameras. It’s incredible. It’s incredible.
Just for people listening, we took a quick bathroom break and now we’re talking about the demo I did. We’ll probably post it somewhere somehow maybe here. I got a chance to experience Beam and it’s hard to describe in words how real it felt with just, what is it, six cameras. It’s incredible. It’s incredible.
Sundar Pichai
It’s one of the toughest products of, you can’t quite describe it to people. Even when we show it in slides, et cetera, you don’t know what it is. You have to kind of experience it.
It’s one of the toughest products of, you can’t quite describe it to people. Even when we show it in slides, et cetera, you don’t know what it is. You have to kind of experience it.
Lex Fridman
On the world leaders front, on politics, geopolitics, there’s something really special again with studying World War II and how much could have been saved if Chamberlain met Stalin in person. And I sometimes also struggle explaining to people, articulating, why I believe meeting in person for world leaders is powerful. It just seems naive to say that, but there is something there in person and with Beam, I felt that same thing, and then I’m unable to explain, all I kept doing is what a child does. You look real. And I mean, I don’t know if that makes meetings more productive or so on, but it certainly makes them more, the same reason you want to show up to work versus remote sometimes, that human connection. I don’t know what that is, it’s hard to put into words. There’s something beautiful about great teams collaborating on a thing that’s not captured by the productivity of that team or by whatever on paper. Some of the most beautiful moments you experience in life is at work. Pursuing a difficult thing together for many months, there’s nothing like it.
On the world leaders front, on politics, geopolitics, there’s something really special again with studying World War II and how much could have been saved if Chamberlain met Stalin in person. And I sometimes also struggle explaining to people, articulating, why I believe meeting in person for world leaders is powerful. It just seems naive to say that, but there is something there in person and with Beam, I felt that same thing, and then I’m unable to explain, all I kept doing is what a child does. You look real. And I mean, I don’t know if that makes meetings more productive or so on, but it certainly makes them more, the same reason you want to show up to work versus remote sometimes, that human connection. I don’t know what that is, it’s hard to put into words. There’s something beautiful about great teams collaborating on a thing that’s not captured by the productivity of that team or by whatever on paper. Some of the most beautiful moments you experience in life is at work. Pursuing a difficult thing together for many months, there’s nothing like it.
Sundar Pichai
You’re in the trenches. And yeah, you do form bonds that way, for sure.
You’re in the trenches. And yeah, you do form bonds that way, for sure.
Lex Fridman
And to be able to do that somewhat remotely in that same personal touch, I don’t know, that’s a deeply fulfilling thing. I know a lot of people, I personally hate meetings because a significant percent of meetings when done poorly don’t serve a clear purpose. But that’s a meeting problem, that’s not a communication problem. If you could improve the communication for the meetings that are useful, that’s just incredible. So yeah, I was blown away by the great engineering behind it. And then we get to see what impact that has, that’s really interesting, but just incredible engineering. Really impressive.
And to be able to do that somewhat remotely in that same personal touch, I don’t know, that’s a deeply fulfilling thing. I know a lot of people, I personally hate meetings because a significant percent of meetings when done poorly don’t serve a clear purpose. But that’s a meeting problem, that’s not a communication problem. If you could improve the communication for the meetings that are useful, that’s just incredible. So yeah, I was blown away by the great engineering behind it. And then we get to see what impact that has, that’s really interesting, but just incredible engineering. Really impressive.
Sundar Pichai
No, it is. And obviously we’ll work hard over the years to make it more and more accessible. But yeah, even on a personal front outside of work meetings, a grandmother who’s far away from her grandchild and being able to have that kind of an interaction, all that I think will end up being very… Nothing substitutes being in person but it’s not always possible. You could be a soldier deployed trying to talk to your loved one. So I think so that’s what inspires us.
No, it is. And obviously we’ll work hard over the years to make it more and more accessible. But yeah, even on a personal front outside of work meetings, a grandmother who’s far away from her grandchild and being able to have that kind of an interaction, all that I think will end up being very… Nothing substitutes being in person but it’s not always possible. You could be a soldier deployed trying to talk to your loved one. So I think so that’s what inspires us.
Toughest leadership decisions
Lex Fridman
When you and I hung out last year and took a walk, I don’t think we talked about this, but I remember outside of that seeing dozens of articles written by analysts and experts and so on, that Sundar Pichai should step down because the perception was that Google was definitively losing the AI race, has lost its magic touch, in the rapidly evolving technological landscape,. And now a year later, it’s crazy. You showed this plot of all the things that were shipped over the past year. It’s incredible. And Gemini Pro is winning across many benchmarks and products as we sit here today. So take me through that experience when there’s all these articles saying you’re the wrong guy to lead Google through this. Google is lost, is done, it’s over, to today where Google is winning again. What were some low points during that time?
When you and I hung out last year and took a walk, I don’t think we talked about this, but I remember outside of that seeing dozens of articles written by analysts and experts and so on, that Sundar Pichai should step down because the perception was that Google was definitively losing the AI race, has lost its magic touch, in the rapidly evolving technological landscape,. And now a year later, it’s crazy. You showed this plot of all the things that were shipped over the past year. It’s incredible. And Gemini Pro is winning across many benchmarks and products as we sit here today. So take me through that experience when there’s all these articles saying you’re the wrong guy to lead Google through this. Google is lost, is done, it’s over, to today where Google is winning again. What were some low points during that time?
Sundar Pichai
Look, lots to unpack. Obviously, the main bet I made as a CEO was to really make sure the company was approaching everything in a AI-first way, really setting ourselves up to develop AGI responsibly, and make sure we are putting out products which embodies that, things that are very, very useful for people. So look, I knew even through moments like that last year, I had a good sense of what we were building internally. So I’d already made many important decisions bringing together teams of the caliber of Brain and DeepMind and setting up Google DeepMind. There were things like we made the decision to invest in TPUs 10 years ago, so we knew we were scaling up and building big models.
Look, lots to unpack. Obviously, the main bet I made as a CEO was to really make sure the company was approaching everything in a AI-first way, really setting ourselves up to develop AGI responsibly, and make sure we are putting out products which embodies that, things that are very, very useful for people. So look, I knew even through moments like that last year, I had a good sense of what we were building internally. So I’d already made many important decisions bringing together teams of the caliber of Brain and DeepMind and setting up Google DeepMind. There were things like we made the decision to invest in TPUs 10 years ago, so we knew we were scaling up and building big models.
Anytime you’re in a situation like that, a few aspects. I’m good at tuning out noise, separating signal from noise. Do you scuba dive? Have you…?
Lex Fridman
No.
No.
Sundar Pichai
It’s amazing. I’m not good at it, but I’ve done it a few times. But sometimes you jump in the ocean, it’s so choppy, but you go down one feet under, it’s the calmest thing in the entire universe. So there’s a version of that. Running Google, you may as well be coaching Barcelona or Real Madrid. You have a bad season. So there are aspects to that. But look, I’m good at tuning out the noise. I do watch out for signals. It’s important to separate the signal from the noise. So there are good people sometimes making good points outside, so you want to listen to it, you want to take that feedback in, but internally, you’re making a set of consequential decisions.
It’s amazing. I’m not good at it, but I’ve done it a few times. But sometimes you jump in the ocean, it’s so choppy, but you go down one feet under, it’s the calmest thing in the entire universe. So there’s a version of that. Running Google, you may as well be coaching Barcelona or Real Madrid. You have a bad season. So there are aspects to that. But look, I’m good at tuning out the noise. I do watch out for signals. It’s important to separate the signal from the noise. So there are good people sometimes making good points outside, so you want to listen to it, you want to take that feedback in, but internally, you’re making a set of consequential decisions.
As leaders, you’re making a lot of decisions, many of them are inconsequential it feels like, but over time you learn that most of the decisions you’re making on a day-to-day basis doesn’t matter. You have to make them and you’re making them just to keep things moving. But you have to make a few consequential decisions and we had set up the right teams, right leaders, we had world-class researchers, we were training Gemini.
Internally, there are factors which were, for example, outside people may not have appreciated. I mean TPUs are amazing, but we had to ramp up TPUs too. That took time to scale actually having enough TPUs to get the compute needed. But I could see internally the trajectory we were on and I was so excited internally about the possible, to me this moment felt like one of the biggest opportunities ahead for us as a company that the opportunity space ahead or the next decade, next 20 years, is bigger than what has happened in the past. And I thought we were set up better than most companies in the world to go realize that vision.
Lex Fridman
I mean, you had to make some consequential, bold decisions like you mentioned the merger of DeepMind and Brain. Maybe it’s my perspective, just knowing humans, I’m sure there’s a lot of egos involved, it’s very difficult to merge teams, and I’m sure there were some hard decisions to be made. Can you take me through your process of how you think through that? Do you go to pull the trigger and make that decision? Maybe what were some painful points? How do you navigate those turbulent waters?
I mean, you had to make some consequential, bold decisions like you mentioned the merger of DeepMind and Brain. Maybe it’s my perspective, just knowing humans, I’m sure there’s a lot of egos involved, it’s very difficult to merge teams, and I’m sure there were some hard decisions to be made. Can you take me through your process of how you think through that? Do you go to pull the trigger and make that decision? Maybe what were some painful points? How do you navigate those turbulent waters?
Sundar Pichai
Look, we were fortunate to have two world-class teams, but you’re right, it’s like somebody coming and telling to you, take Stanford and MIT and then put them together and create a great department, easier said than done. But we were fortunate in phenomenal teams, both had their strengths, they were run very differently. Brain was kind of a lot of diverse projects, bottoms up and out of it came a lot of important research breakthroughs. DeepMind at the time had a strong vision of how you want to build AGI, and so they were pursuing their direction. But I think through those moments, luckily tapping into, Jeff had expressed a desire to go back to more of a scientific individual contributor roots. He felt like management was taking up too much of his time. And Demis naturally I think was running DeepMind and was a natural choice there.
Look, we were fortunate to have two world-class teams, but you’re right, it’s like somebody coming and telling to you, take Stanford and MIT and then put them together and create a great department, easier said than done. But we were fortunate in phenomenal teams, both had their strengths, they were run very differently. Brain was kind of a lot of diverse projects, bottoms up and out of it came a lot of important research breakthroughs. DeepMind at the time had a strong vision of how you want to build AGI, and so they were pursuing their direction. But I think through those moments, luckily tapping into, Jeff had expressed a desire to go back to more of a scientific individual contributor roots. He felt like management was taking up too much of his time. And Demis naturally I think was running DeepMind and was a natural choice there.
But I think, you are right, it took us a while to bring the teams together, credit to Demis, Jeff, Koray, all the great people there. They worked super hard to combine the best of both worlds when you set up that team. A few sleepless nights here and there, as we put that thing together. We were patient in how we did it so that it works well for the long term and some of that in that moment. I think, yes, with things moving fast, I think you definitely felt the pressure, but I think we pulled off that transition well, and I think they’re obviously doing incredible work and there’s a lot more incredible things ahead coming from them.
Lex Fridman
Like we talked about, you have a very calm, even-tempered, respectful demeanor, during that time, whether it’s the merger or just dealing with the noise, were there times where frustration boiled over? Did you have to go a bit more intense on everybody than you usually would?
Like we talked about, you have a very calm, even-tempered, respectful demeanor, during that time, whether it’s the merger or just dealing with the noise, were there times where frustration boiled over? Did you have to go a bit more intense on everybody than you usually would?
Sundar Pichai
Probably. You’re right. I think in the sense that there was a moment where we were all driving hard, but when you’re in the trenches working with passion, you’re going to have days, you disagree, you argue. But all that, I mean just part of the course of working intensely. And at the end of the day, all of us are doing what we are doing because the impact it can have, we are motivated by it.
Probably. You’re right. I think in the sense that there was a moment where we were all driving hard, but when you’re in the trenches working with passion, you’re going to have days, you disagree, you argue. But all that, I mean just part of the course of working intensely. And at the end of the day, all of us are doing what we are doing because the impact it can have, we are motivated by it.
For many of us, this has been a long-term journey, and so it’s been super exciting. The positive moments far outweigh the kind of stressful moments. Just early this year, I had a chance to celebrate back-to-back over two days Nobel Prize for Geoff Hinton and the next day a Nobel Prize for Demis and John Jumper. You worked with people like that, all that is super inspiring.
Lex Fridman
Is there something like with you where you had to put your foot down maybe with less versus more or, I’m the CEO and we’re doing this?
Is there something like with you where you had to put your foot down maybe with less versus more or, I’m the CEO and we’re doing this?
Sundar Pichai
To my earlier point about consequential decisions you make, there are decisions you make, people can disagree pretty vehemently, but at some point you make a clear decision and you just ask people to commit. You can disagree, but it’s time to disagree and commit so that we can get moving. And whether it’s putting the foot down, it’s a natural part of what all of us have to do. And I think you can do that calmly and be very firm in the direction you are making the decision, and I think if you’re clear actually people over time respect that, if you can make decisions with clarity.
To my earlier point about consequential decisions you make, there are decisions you make, people can disagree pretty vehemently, but at some point you make a clear decision and you just ask people to commit. You can disagree, but it’s time to disagree and commit so that we can get moving. And whether it’s putting the foot down, it’s a natural part of what all of us have to do. And I think you can do that calmly and be very firm in the direction you are making the decision, and I think if you’re clear actually people over time respect that, if you can make decisions with clarity.
I find it very effective in meetings where you’re making such decisions to hear everyone out. I think it’s important, when you can, to hear everyone out. Sometimes what you’re hearing actually influences how you think about, and you’re wrestling with it and making a decision. Sometimes you have a clear conviction and you state, so look, this is how I feel and this is my conviction, and you kind of place the bet and you move on.
Lex Fridman
Are there big decisions like that? I kind of intuitively assume the merger was the big one?
Are there big decisions like that? I kind of intuitively assume the merger was the big one?
Sundar Pichai
I think that was a very important decision for the company to meet the moment. I think we had to make sure we were doing that and doing that well. I think that was a consequential decision. There were many other things. We set up a AI infrastructure team to really go meet the moment to scale up the compute we needed to and really brought teams from disparate parts of the company, created it to move forward.
I think that was a very important decision for the company to meet the moment. I think we had to make sure we were doing that and doing that well. I think that was a consequential decision. There were many other things. We set up a AI infrastructure team to really go meet the moment to scale up the compute we needed to and really brought teams from disparate parts of the company, created it to move forward.
Getting people to work together physically, both in London with DeepMind at what we call Gradient Canopy, which is where the Mountain View Google DeepMind teams are. But one of my favorite moments is I routinely walk multiple times per week to the Gradient Canopy building where our top researchers are working on the models, Sergey is often there amongst them, just looking at getting an update on the model, seeing the loss curves, so all that. I think that cultural part of getting the teams together back with that energy, I think ended up playing a big role too.
AI mode vs Google Search
Lex Fridman
What about the decision to recently add AI mode? So Google Search is, as they say, the front page of the internet, it’s like a legendary minimalist thing with 10 blue links. When people think internet, they think that page and now you’re starting to mess with that. So the AI mode, which is a separate tab, and then integrating AI in the results, I’m sure there were some battles in meetings on that one.
What about the decision to recently add AI mode? So Google Search is, as they say, the front page of the internet, it’s like a legendary minimalist thing with 10 blue links. When people think internet, they think that page and now you’re starting to mess with that. So the AI mode, which is a separate tab, and then integrating AI in the results, I’m sure there were some battles in meetings on that one.
Sundar Pichai
Look, in some ways when mobile came, people wanted answers to more questions, so we are kind of constantly evolving it, but you’re right, this moment, that evolution because the underlying technology is becoming much more capable. You can have AI give a lot of context, but one of our important design goals though, is when you come to Google Search, you are going to get a lot of context, but you’re going to go and find a lot of things out on the web. So that will be true in AI mode, in AI overviews, and so on.
Look, in some ways when mobile came, people wanted answers to more questions, so we are kind of constantly evolving it, but you’re right, this moment, that evolution because the underlying technology is becoming much more capable. You can have AI give a lot of context, but one of our important design goals though, is when you come to Google Search, you are going to get a lot of context, but you’re going to go and find a lot of things out on the web. So that will be true in AI mode, in AI overviews, and so on.
Pertaining to our earlier conversation, we’re still giving you access to links, but think of the AI as a layer, which is giving you context, summary, maybe in AI mode, you can have a dialogue with it back and forth on your journey, but through it all, you’re kind of learning what’s out there in the world. So those core principles don’t change. But I think AI mode allows us to push the… We have our best models there, models that are using search as a deep tool, really for every query you’re asking, kind of fanning out doing multiple searches, kind of assembling that knowledge in a way so that you can go and consume what you want to, and that’s how we think about it.
Lex Fridman
I got a chance to listen to a bunch of Elizabeth, Liz Reid, describe, there’s two things stood out to me that you mentioned. One thing is what you were talking about is the query fan-out, which I didn’t even think about before, is the powerful aspect of integrating a bunch of stuff on the web for you in one place, so that, yes, it provides that context so that you can decide which page to then go onto. The other really, really big thing speaks to the earlier in terms of productivity multiply that we’re talking about, that she mentioned, was language.
I got a chance to listen to a bunch of Elizabeth, Liz Reid, describe, there’s two things stood out to me that you mentioned. One thing is what you were talking about is the query fan-out, which I didn’t even think about before, is the powerful aspect of integrating a bunch of stuff on the web for you in one place, so that, yes, it provides that context so that you can decide which page to then go onto. The other really, really big thing speaks to the earlier in terms of productivity multiply that we’re talking about, that she mentioned, was language.
So one of the things you don’t quite understand is through AI mode for non-English speakers, you make, let’s say, English language websites accessible in the reasoning process as you’ve tried to figure out what you’re looking for. Of course once you show up to a page, you can use a basic translate, but that process of figuring it out, if you empathize with a large part of the world that doesn’t speak English, their web is much smaller in that original language. And so it, again, unlocks that huge cognitive capacity there. You take for granted here with all the bloggers and the journalists writing about AI mode, you forget that this now unlocks because Gemini is really good at translation.
Sundar Pichai
Oh it is. I mean the multimodality, the translation, it’s ability to reason, we’re dramatically improving tool use, and putting that power in the flow of Search, look, I’m super excited with AI overviews. We’ve seen the product has gotten much better, we measured using all kinds of user metrics. It’s obviously driven strong growth of the product, and we’ve been testing AI mode. It’s now in the hands of millions of people and the early metrics are very encouraging. So look, I’m excited about this next chapter of Search.
Oh it is. I mean the multimodality, the translation, it’s ability to reason, we’re dramatically improving tool use, and putting that power in the flow of Search, look, I’m super excited with AI overviews. We’ve seen the product has gotten much better, we measured using all kinds of user metrics. It’s obviously driven strong growth of the product, and we’ve been testing AI mode. It’s now in the hands of millions of people and the early metrics are very encouraging. So look, I’m excited about this next chapter of Search.
Lex Fridman
For people who are not thinking through or aware of this, so there’s the 10 blue links with the AI overview on top, that provides a nice summarization, you can expand it.
For people who are not thinking through or aware of this, so there’s the 10 blue links with the AI overview on top, that provides a nice summarization, you can expand it.
Sundar Pichai
And you have sources and links now embedded.
And you have sources and links now embedded.
Lex Fridman
Yeah, I believe, at least Liz said so, I actually didn’t notice it, but there’s ads in the AI overview also. I don’t think there’s ads in AI mode. When ads in AI mode, Sundar? When do you think…? Okay, we should say that in the nineties, I remember the animated GIFs, banner GIFs, that take you to some shady websites that have nothing to do with anything. AdSense revolutionized advertisement. It’s one of the greatest inventions in recent history because it allows us, for free, to have access to all these kinds of services. So ads fuel a lot of really powerful services. And at its best it’s showing you relevant ads, but also very importantly in a way that’s not super annoying, in a classy way. So when do you think it’s possible to add ads into AI mode and what does that look like from a classy, non-annoying perspective?
Yeah, I believe, at least Liz said so, I actually didn’t notice it, but there’s ads in the AI overview also. I don’t think there’s ads in AI mode. When ads in AI mode, Sundar? When do you think…? Okay, we should say that in the nineties, I remember the animated GIFs, banner GIFs, that take you to some shady websites that have nothing to do with anything. AdSense revolutionized advertisement. It’s one of the greatest inventions in recent history because it allows us, for free, to have access to all these kinds of services. So ads fuel a lot of really powerful services. And at its best it’s showing you relevant ads, but also very importantly in a way that’s not super annoying, in a classy way. So when do you think it’s possible to add ads into AI mode and what does that look like from a classy, non-annoying perspective?
Sundar Pichai
Two things. Early part of AI mode, we’ll obviously focus more on the organic experience to make sure we are getting it right. I think the fundamental value of ads are-
Two things. Early part of AI mode, we’ll obviously focus more on the organic experience to make sure we are getting it right. I think the fundamental value of ads are-
Sundar Pichai
I think the fundamental value of ads are it enables access to deploy the services to billions of people. Second is ads are the reason we’ve always taken ads seriously is we view ads as commercial information, but it’s still information. So we bring the same quality metrics to it. I think with AI mode, to our earlier conversation about… I think AI itself will help us, over time, figure out the best way to do it. I think given we are giving context around everything, I think it’ll give us more opportunities to also explain, “Okay, here’s some commercial information.” Like today as a podcaster, you do it at certain spots, and you probably figure out what’s best in your podcast. I think so, there are aspects of that, but I think the underlying need of people value commercial information, businesses are trying to connect to users.
I think the fundamental value of ads are it enables access to deploy the services to billions of people. Second is ads are the reason we’ve always taken ads seriously is we view ads as commercial information, but it’s still information. So we bring the same quality metrics to it. I think with AI mode, to our earlier conversation about… I think AI itself will help us, over time, figure out the best way to do it. I think given we are giving context around everything, I think it’ll give us more opportunities to also explain, “Okay, here’s some commercial information.” Like today as a podcaster, you do it at certain spots, and you probably figure out what’s best in your podcast. I think so, there are aspects of that, but I think the underlying need of people value commercial information, businesses are trying to connect to users.
All that doesn’t change in an AI moment, but look, we will rethink it. You’ve seen us in YouTube now do a mixture of subscription and ads. Like, obviously, we are now introducing subscription offerings across everything. So as part of that, the optimization point will end up being a different place as well.
Lex Fridman
Do you see a trajectory in the possible future where AI mode completely replaces the 10 blue links plus AI overview?
Do you see a trajectory in the possible future where AI mode completely replaces the 10 blue links plus AI overview?
Sundar Pichai
Our current plan is AI mode is going to be there as a separate tab for people who really want to experience that, but it’s not yet at the level there, our main search pages. But as features work will keep migrating it to the main page, and so you can view it as a continuum. AI mode will offer you the bleeding edge experience, but things that work will keep overflowing to AI overviews and the main experience.
Our current plan is AI mode is going to be there as a separate tab for people who really want to experience that, but it’s not yet at the level there, our main search pages. But as features work will keep migrating it to the main page, and so you can view it as a continuum. AI mode will offer you the bleeding edge experience, but things that work will keep overflowing to AI overviews and the main experience.
Lex Fridman
And the idea that AI mode will still take you to the web to human created web?
And the idea that AI mode will still take you to the web to human created web?
Sundar Pichai
Yes, that’s going to be a core design principle for us.
Yes, that’s going to be a core design principle for us.
Lex Fridman
So really, if users decide, right? They drive this.
So really, if users decide, right? They drive this.
Sundar Pichai
Yeah.
Yeah.
Lex Fridman
It’s just exciting. A little bit scary that it might change the internet because Google has been dominating with a very specific look and idea of what it means to have the internet. As you move to AI mode, I mean, it’s just a different experience. I think Liz was talking about it. I think you’ve mentioned that you ask more questions. You ask longer questions.
It’s just exciting. A little bit scary that it might change the internet because Google has been dominating with a very specific look and idea of what it means to have the internet. As you move to AI mode, I mean, it’s just a different experience. I think Liz was talking about it. I think you’ve mentioned that you ask more questions. You ask longer questions.
Sundar Pichai
Dramatically different types of questions.
Dramatically different types of questions.
Lex Fridman
Yeah, it actually fuels curiosity. I think, for me, I’ve been asking just a much larger number of questions of this black box machine, let’s say, whatever it is, and with the AI overview, it’s interesting because I still value the human… I still ultimately want to end up on the human created web, but like you said, the context really helps.
Yeah, it actually fuels curiosity. I think, for me, I’ve been asking just a much larger number of questions of this black box machine, let’s say, whatever it is, and with the AI overview, it’s interesting because I still value the human… I still ultimately want to end up on the human created web, but like you said, the context really helps.
Sundar Pichai
It helps us deliver higher-quality referrals, right? Where people, they have much higher likelihood of finding what they’re looking for. They’re exploring. They’re curious. Their intent is getting satisfied more. So that’s what all our metrics show.
It helps us deliver higher-quality referrals, right? Where people, they have much higher likelihood of finding what they’re looking for. They’re exploring. They’re curious. Their intent is getting satisfied more. So that’s what all our metrics show.
Lex Fridman
It makes the humans that create the web nervous. The journalists are getting nervous. They’ve already been nervous. Like we mentioned, CNN is nervous because the podcasts… It makes people nervous.
It makes the humans that create the web nervous. The journalists are getting nervous. They’ve already been nervous. Like we mentioned, CNN is nervous because the podcasts… It makes people nervous.
Sundar Pichai
Look, I think news and journalism will play an important role in the future. We are pretty committed to it, right? So I think making sure that ecosystem, in fact, I think we’ll be able to differentiate ourselves as a company over time because of our commitment there. So it’s something, I think, I definitely value a lot, and as we are designing, we’ll continue prioritizing approaches.
Look, I think news and journalism will play an important role in the future. We are pretty committed to it, right? So I think making sure that ecosystem, in fact, I think we’ll be able to differentiate ourselves as a company over time because of our commitment there. So it’s something, I think, I definitely value a lot, and as we are designing, we’ll continue prioritizing approaches.
Lex Fridman
I’m sure for the people who want, they can have a fine-tuned AI model that’s clickbait hit pieces that will replace current journalism. That’s a shot of journalism. Forgive me. But I find that if you’re looking for really strong criticism of things, that Gemini is very good at providing that.
I’m sure for the people who want, they can have a fine-tuned AI model that’s clickbait hit pieces that will replace current journalism. That’s a shot of journalism. Forgive me. But I find that if you’re looking for really strong criticism of things, that Gemini is very good at providing that.
Sundar Pichai
Oh, absolutely. I.
Oh, absolutely. I.
Lex Fridman
T’s better than anything they… For now, I mean. People are concerned that there would be bias that’s introduced that as the AI systems become more and more powerful, there’s incentive from sponsors to roll in and try to control the output of the AI models. But for now, the objective criticism that’s provided is way better than journalism.
T’s better than anything they… For now, I mean. People are concerned that there would be bias that’s introduced that as the AI systems become more and more powerful, there’s incentive from sponsors to roll in and try to control the output of the AI models. But for now, the objective criticism that’s provided is way better than journalism.
Of course, the argument is the journalists are still valuable, but then, I don’t know, the crowdsourced journalism that we get on the open internet is also very, very powerful.
Sundar Pichai
I feel like they’re all super important things. I think it’s good that you get a lot of crowdsourced information coming in, but I feel like there is real value for high-quality journalism, right? I think these are all complimentary, I think. Like, I view it as I find myself constantly seeking out, also, like, try to find objective reporting on things too. Sometimes you get more context from the crowd-funded sources you read online, but I think both end up playing a super important role.
I feel like they’re all super important things. I think it’s good that you get a lot of crowdsourced information coming in, but I feel like there is real value for high-quality journalism, right? I think these are all complimentary, I think. Like, I view it as I find myself constantly seeking out, also, like, try to find objective reporting on things too. Sometimes you get more context from the crowd-funded sources you read online, but I think both end up playing a super important role.
Lex Fridman
So you’ve spoken a little about this. Dennis talked about this, it’s sort of the slice of the web that will increasingly become about providing information for agents. So we can think about as two layers of the web. One is for humans, one is for agents. Do you see the AI agents? Do you see the one that’s for AI agents growing over time? Do you there still being long-term 5, 10 years value for the human created for the purpose of human consumption web, or will it all be agents in the end?
So you’ve spoken a little about this. Dennis talked about this, it’s sort of the slice of the web that will increasingly become about providing information for agents. So we can think about as two layers of the web. One is for humans, one is for agents. Do you see the AI agents? Do you see the one that’s for AI agents growing over time? Do you there still being long-term 5, 10 years value for the human created for the purpose of human consumption web, or will it all be agents in the end?
Sundar Pichai
Today, not everyone does, but you go to a big retail store, you love walking the aisle, you love shopping or grocery store, picking out food, et cetera, but you’re also online shopping, and they’re delivering, right? So both are complementary, and that’s true for restaurants, et cetera. So I do feel like, over time, websites will also get better for humans. They will be better design. AI might actually design them better for humans.
Today, not everyone does, but you go to a big retail store, you love walking the aisle, you love shopping or grocery store, picking out food, et cetera, but you’re also online shopping, and they’re delivering, right? So both are complementary, and that’s true for restaurants, et cetera. So I do feel like, over time, websites will also get better for humans. They will be better design. AI might actually design them better for humans.
So I expect the web to get a lot richer, and more interesting, and better to use. At the same time, I think there’ll be an agentic web, which is also making a lot of progress, and you have to solve the business value and the incentives to make that work well, right? For people to participate in it.
But I think both will coexist, and obviously, the agents may not need the same… Not may not. They won’t need the same design and the UI paradigms which humans need to interact with. But I think both will be there.
Google Chrome
Lex Fridman
I have to ask you about Chrome. I have to say, for me personally, Google Chrome is probably, I don’t know, I’d like to see where I would rank it, but in this temptation, and this is not a recency bias, although it might be a little bit, but I think it’s up there, top three, maybe the number one piece of software for me of all time. It’s incredible. It’s really incredible.
I have to ask you about Chrome. I have to say, for me personally, Google Chrome is probably, I don’t know, I’d like to see where I would rank it, but in this temptation, and this is not a recency bias, although it might be a little bit, but I think it’s up there, top three, maybe the number one piece of software for me of all time. It’s incredible. It’s really incredible.
The browser is our window to the web, and Chrome really continues for many years. But even initially, to push the innovation on that front when it was stale, and it continues to challenge. It continues to make it more performant, so efficient, and just innovate constantly, and the Chromium aspect of it.
Anyway, you were one of the pioneers of Chrome pushing for it when it was an insane idea, probably one of the ideas that was criticized, and doubted, and so on. So can you tell me the story of what it took to push for Chrome? What was your vision?
Sundar Pichai
Look, it was such a dynamic time around 2004, 2005 with AJAX, the web suddenly becoming dynamic. In a matter of few months, Flickr, Gmail, Google Maps, all kind of came into existence, right? Like, the fact that you have an interactive dynamic web. The web was evolving from simple text pages, simple HTML to rich dynamic applications, but at the same time, you could see the browser was never meant for that world, right? Like, JavaScript execution was super slow.
Look, it was such a dynamic time around 2004, 2005 with AJAX, the web suddenly becoming dynamic. In a matter of few months, Flickr, Gmail, Google Maps, all kind of came into existence, right? Like, the fact that you have an interactive dynamic web. The web was evolving from simple text pages, simple HTML to rich dynamic applications, but at the same time, you could see the browser was never meant for that world, right? Like, JavaScript execution was super slow.
The browser was far away from being an operating system for that rich modern web which was coming into place. So that’s the opportunity we saw. It’s an amazing early team. I still remember the day we got a shell on WebKit running and how fast it was. We had the clear vision for building a browser. We wanted to bring Core OS principles into the browser, right?
So we built a secure browser, sandbox. Each tab was its own. These things are common now, but at the time, it was pretty unique. We found an amazing team in Aarhus, Denmark with a leader who built the JavaScript VM, which at the time, was 25 times faster than any other JavaScript VM out there. By the way, you are right. We open-sourced it all and put it in Chromium too, but we really thought the web could work much better, much faster, and you could be much safer browsing the web, and the name Chrome came because literally felt people were… Or the Chrome of the browser was getting clunkier.
We wanted to minimize it. So that was the origins of the project. Definitely, obviously, highly-biased person here talking about Chrome, but it’s the most fun I’ve had building a product from the ground up, and it was an extraordinary team. My co-founders on the project were terrific, so definite fond memories.
Lex Fridman
So for people who don’t know, Sundar, it’s probably fair to say, you’re the reason we have Chrome. Yes, I know there’s a lot of incredible engineers, but pushing for it inside a company that probably was opposing it because it’s a crazy idea, because as everybody probably knows, it’s incredibly difficult to build a browser.
So for people who don’t know, Sundar, it’s probably fair to say, you’re the reason we have Chrome. Yes, I know there’s a lot of incredible engineers, but pushing for it inside a company that probably was opposing it because it’s a crazy idea, because as everybody probably knows, it’s incredibly difficult to build a browser.
Sundar Pichai
Yeah, look, Eric was the CEO at the time. I think it was less that he was supposed to it. He kind of first-hand knew what a crazy thing it is to go build a browser, and so he definitely was like, “This is…” There was a crazy aspect to actually wanting to go build a browser, but he was very supportive. Everyone… The founders were.
Yeah, look, Eric was the CEO at the time. I think it was less that he was supposed to it. He kind of first-hand knew what a crazy thing it is to go build a browser, and so he definitely was like, “This is…” There was a crazy aspect to actually wanting to go build a browser, but he was very supportive. Everyone… The founders were.
I think once we started building something, and we could use it. And see how much better, from then on, you’re really tinkering with the product and making it better. It came to life pretty fast.
Lex Fridman
What wisdom do you draw from that? From pushing through on a crazy idea in the early days that ends up being revolutionary, for future crazy ideas like it?
What wisdom do you draw from that? From pushing through on a crazy idea in the early days that ends up being revolutionary, for future crazy ideas like it?
Sundar Pichai
I mean, this is something Larry and Sergey have articulated clearly. I really internalized this early on, which is their whole feeling around working on moonshots as a way. When you work on something very ambitious, first of all, it attracts the best people, right? So that’s an advantage you get. Number two, because it’s so ambitious, you don’t have others working on something crazy. So you pretty much have the path to yourselves, right? It’s like Waymo and self-driving. Number three, even if you end up quite not accomplishing what you set out to do and you end up doing 60, 80% of it, it’ll end up being a terrific success. So that’s the advice I would give people, right? I think it’s just aiming for big ideas, has all these advantages, and it’s risky, but it also has all these advantages which people I don’t think fully internalize.
I mean, this is something Larry and Sergey have articulated clearly. I really internalized this early on, which is their whole feeling around working on moonshots as a way. When you work on something very ambitious, first of all, it attracts the best people, right? So that’s an advantage you get. Number two, because it’s so ambitious, you don’t have others working on something crazy. So you pretty much have the path to yourselves, right? It’s like Waymo and self-driving. Number three, even if you end up quite not accomplishing what you set out to do and you end up doing 60, 80% of it, it’ll end up being a terrific success. So that’s the advice I would give people, right? I think it’s just aiming for big ideas, has all these advantages, and it’s risky, but it also has all these advantages which people I don’t think fully internalize.
Lex Fridman
I mean, you mentioned one of the craziest biggest moonshots, which is Waymo. It’s when I first saw, over a decade ago, a Waymo vehicle, a Google self-driving car vehicle. For me, it was an aha moment for robotics. It made me fall in love with robotics even more than before. It gave me a glimpse into the future. So it’s incredible. I’m truly grateful for that project, for what it symbolizes, but it’s also a crazy moonshot.
I mean, you mentioned one of the craziest biggest moonshots, which is Waymo. It’s when I first saw, over a decade ago, a Waymo vehicle, a Google self-driving car vehicle. For me, it was an aha moment for robotics. It made me fall in love with robotics even more than before. It gave me a glimpse into the future. So it’s incredible. I’m truly grateful for that project, for what it symbolizes, but it’s also a crazy moonshot.
For a long time, Waymo’s been, like you mentioned with scuba diving, just not listening to anybody, just calmly improving the system better, and better, more testing, just expanding the operational domain more and more. First of all, congrats on the 10 million paid Robotaxi rides. What lessons do you take from Waymo about, like, the perseverance, the persistence on that project?
Sundar Pichai
Really proud of the progress we have had with Waymo. One of the things I think we were very committed to, the final 20% can look like… I mean, we always say, right? The first 80% is easy, the final 20% takes 80% of the time. I think we definitely were working through that phase with Waymo, but I was aware of that, but we knew we were at that stage.
Really proud of the progress we have had with Waymo. One of the things I think we were very committed to, the final 20% can look like… I mean, we always say, right? The first 80% is easy, the final 20% takes 80% of the time. I think we definitely were working through that phase with Waymo, but I was aware of that, but we knew we were at that stage.
We knew while there were many other self-driving companies, we knew the technology gap was there. In fact, right at the moment, when others were doubting Waymo is when, I don’t know, made the decision to invest more in Waymo, right? Because so in some ways it’s counterintuitive, but I think, look, we’ve always been a deep technology company, and waymo is a version of kind of building a AI robot that works well, and so we get attracted to problems like that. The caliber of the teams there, phenomenal teams.
So I know you followed the space super closely. I’m talking to someone who knows the space well, but it was very obvious, it’s going to get there, and there’s still more work to do, but it’s a good example where we always prioritized being ambitious and safety at the same time, right? Equally committed to both and pushed hard and couldn’t be more thrilled with how it’s working, how much people love the experience. This year, definitely, we’ve scaled up a lot, and we’ll continue scaling up in ’26.
Lex Fridman
That said, the competition is heating up. You’ve been friendly with Elon even though, technically, he’s a competitor, but you’ve been friendly with a lot of tech CEOs, in that way, just showing respect towards them and so on. What do you think about the Robotaxi efforts that Tesla is doing? Do you see it as competition? What do you think? Do you like the competition?
That said, the competition is heating up. You’ve been friendly with Elon even though, technically, he’s a competitor, but you’ve been friendly with a lot of tech CEOs, in that way, just showing respect towards them and so on. What do you think about the Robotaxi efforts that Tesla is doing? Do you see it as competition? What do you think? Do you like the competition?
Sundar Pichai
We are one of the earliest and biggest backers of SpaceX as Google, right? So thrilled with what SpaceX is doing and fortunate to be investors as a company there, right? We don’t compete with Tesla directly. We are not making cars, et cetera, right? We are building L4, 5 autonomy. We are building a Waymo driver, which is general purpose and can be used in many settings.
We are one of the earliest and biggest backers of SpaceX as Google, right? So thrilled with what SpaceX is doing and fortunate to be investors as a company there, right? We don’t compete with Tesla directly. We are not making cars, et cetera, right? We are building L4, 5 autonomy. We are building a Waymo driver, which is general purpose and can be used in many settings.
They’re obviously working on making Tesla self-driving too. I’ve just assumed it’s a de facto that Elon would succeed in whatever it does. So that is not something I question, but I think we are so far from… These spaces are such vast spaces. Like, I think about transportation, the opportunity space, the Waymo driver is a general purpose technology we can apply in many situations. So you have a vast green space in all future scenarios, I see Tesla doing well and Waymo doing well.
Lex Fridman
Like we mentioned with the Neolithic package, I think it’s very possible that in the “AI package” when the history is written, autonomous vehicles, self-driving cars is like the big thing that changes everything. Imagine, over a period of a decade or two, just the complete transition from manually-driven to autonomous, in ways we might not predict, it might change the way we move about the world completely.
Like we mentioned with the Neolithic package, I think it’s very possible that in the “AI package” when the history is written, autonomous vehicles, self-driving cars is like the big thing that changes everything. Imagine, over a period of a decade or two, just the complete transition from manually-driven to autonomous, in ways we might not predict, it might change the way we move about the world completely.
So the possibility of that and then the second and third order effects, as you’re seeing now with Tesla, very possibly, would see some… Internally, with Alphabet, maybe Waymo, maybe some of the Gemini robotics stuff, it might lead you into the other domains of robotics because we should remember that Waymo is a robot.
Sundar Pichai
Mm-hmm.
Mm-hmm.
Lex Fridman
It just happens to be on four wheels. So you said that the next big thing, we can also throw that into AI package. The big aha moment might be in the space of robotics. What do you think that would look like?
It just happens to be on four wheels. So you said that the next big thing, we can also throw that into AI package. The big aha moment might be in the space of robotics. What do you think that would look like?
Sundar Pichai
Demis and the Google DeepMind team is very focused on Gemini robotics, right?
Demis and the Google DeepMind team is very focused on Gemini robotics, right?
Lex Fridman
Yeah.
Yeah.
Sundar Pichai
So we are definitely building the underlying model as well. So we have a lot of investments there, and I think we are also pretty cutting-edge in our research there. So we are definitely driving that direction. We obviously are thinking about applications in robotics. We’ll kind of work CSD. We are partnering with a few companies today, but it’s an area I would say stay tuned.
So we are definitely building the underlying model as well. So we have a lot of investments there, and I think we are also pretty cutting-edge in our research there. So we are definitely driving that direction. We obviously are thinking about applications in robotics. We’ll kind of work CSD. We are partnering with a few companies today, but it’s an area I would say stay tuned.
We are yet to fully articulate our plans outside, but it’s an area we are definitely committed to driving a lot of progress. But I think AI ends up driving that massive progress on robotics. The field has been held back for a while. I mean, hardware has made extraordinary progress. The software had been the challenge, but with AI now and the generalized models we are building, we are building these models, getting them to work in the real world in a safe way, in a generalized way is the frontier we are pushing pretty hard on.
Lex Fridman
Well, it’s really nice to see the models and the different teams integrated to where all of them are pushing towards one world model that’s being built. So from all these different angles, multimodal, you’re ultimately trying to get Gemini. So the same thing that would make AI mode really effective in answering your questions, which requires a kind of world model is the same kind of thing that would help a robot be useful in the physical world. So everything’s aligned.
Well, it’s really nice to see the models and the different teams integrated to where all of them are pushing towards one world model that’s being built. So from all these different angles, multimodal, you’re ultimately trying to get Gemini. So the same thing that would make AI mode really effective in answering your questions, which requires a kind of world model is the same kind of thing that would help a robot be useful in the physical world. So everything’s aligned.
Sundar Pichai
That is what makes this moment so unique because running, a company for the first time, you can do one investment in a very deep horizontal way. On top of it, you can drive multiple businesses forward, right? That’s effectively what we are doing in Google and Alphabet, right?
That is what makes this moment so unique because running, a company for the first time, you can do one investment in a very deep horizontal way. On top of it, you can drive multiple businesses forward, right? That’s effectively what we are doing in Google and Alphabet, right?
Lex Fridman
Yeah, it’s all coming together. Like, it was planned ahead of time, but it’s not, of course. It’s all distributed. I mean, if Gmail, and Sheets, and all these other incredible services, I can sing Gmail praises for years. I mean, just this revolutionized email.
Yeah, it’s all coming together. Like, it was planned ahead of time, but it’s not, of course. It’s all distributed. I mean, if Gmail, and Sheets, and all these other incredible services, I can sing Gmail praises for years. I mean, just this revolutionized email.
But the moment you start to integrate AI Gemini into Gmail, I mean that’s the other thing, speaking of productivity multiplier, people complain about email, but that changed everything. Email, like the invention of email changed everything, and it has been ripe. There’s been a few folks trying to revolutionize email. Some of them on top of Gmail, but that’s like ripe for innovation, not just spam filtering, but you demoed a really nice demo of-
Sundar Pichai
Personalized responses, right?
Personalized responses, right?
Lex Fridman
Personalized responses. At first, I felt really bad about that, but then I realized that there’s nothing wrong to feel bad about because the example you gave is when a friend asks you went to whatever hiking location, “Do you have any advice?” It just searches through all your information to give them good advice, and then you put the cherry on top, maybe some love, or whatever camaraderie, but the informational aspect, the knowledge transfer, it does for you.
Personalized responses. At first, I felt really bad about that, but then I realized that there’s nothing wrong to feel bad about because the example you gave is when a friend asks you went to whatever hiking location, “Do you have any advice?” It just searches through all your information to give them good advice, and then you put the cherry on top, maybe some love, or whatever camaraderie, but the informational aspect, the knowledge transfer, it does for you.
Sundar Pichai
I think there’ll be important moments. Like, today, if you write a card in your own handwriting and send it to someone, that’s a special thing. Similarly, there’ll be a time, I mean, to your friends, maybe your friend wrote and said he’s not doing well or something, those are moments you want to save your times for writing something, reaching out. But like saying, “Give me all the details of the trip you took to me makes a lot of sense for AI assistant to help you.” Right?
I think there’ll be important moments. Like, today, if you write a card in your own handwriting and send it to someone, that’s a special thing. Similarly, there’ll be a time, I mean, to your friends, maybe your friend wrote and said he’s not doing well or something, those are moments you want to save your times for writing something, reaching out. But like saying, “Give me all the details of the trip you took to me makes a lot of sense for AI assistant to help you.” Right?
So I think both are important, but I think I’m excited about that direction.
Lex Fridman
Yeah, I think, ultimately, it gives more time for us humans to do the things we humans find meaningful. I think it scares a lot of people because we’re going to have to ask ourselves the hard question of what do we find meaningful? I’m sure there’s answers, and it’s the old question of the meaning of existence. As you have to try to figure that out, that might be ultimately parenting, or being creative in some domains of art or writing, and it challenges to…
Yeah, I think, ultimately, it gives more time for us humans to do the things we humans find meaningful. I think it scares a lot of people because we’re going to have to ask ourselves the hard question of what do we find meaningful? I’m sure there’s answers, and it’s the old question of the meaning of existence. As you have to try to figure that out, that might be ultimately parenting, or being creative in some domains of art or writing, and it challenges to…
It’s a good question of to ask yourself like, “In my life, what is the thing that brings me most joy and fulfillment?” If I’m able to actually focus more time on that, that’s really powerful.
Sundar Pichai
I think that’s the holy grail. If you get this right, I think it allows more people to find that.
I think that’s the holy grail. If you get this right, I think it allows more people to find that.
Programming
Lex Fridman
I have to ask you, on the programming front, AI is getting really good at programming. Gemini, both the agentic and just the LLM has been incredible, so a lot of programmers are really worried that they will lose their jobs. How worried should they be, and how should they adjust so they can be thriving in this new world, or more and more code is written by AI?
I have to ask you, on the programming front, AI is getting really good at programming. Gemini, both the agentic and just the LLM has been incredible, so a lot of programmers are really worried that they will lose their jobs. How worried should they be, and how should they adjust so they can be thriving in this new world, or more and more code is written by AI?
Sundar Pichai
I think a few things. Looking at Google, we’ve given various stats around 30% of code now uses AI- generated suggestions or whatever it is. But the most important metric, and we carefully measure it is, like, how much has our engineering velocity increased as a company due to AI, right? It’s tough measure, and we rigorously try to measure it, and our estimates are that number is now at 10%, right?
I think a few things. Looking at Google, we’ve given various stats around 30% of code now uses AI- generated suggestions or whatever it is. But the most important metric, and we carefully measure it is, like, how much has our engineering velocity increased as a company due to AI, right? It’s tough measure, and we rigorously try to measure it, and our estimates are that number is now at 10%, right?
Like, now, across the company, we’ve accomplished a 10% engineering velocity increase using AI, but we plan to hire more engineers next year, right? Because the opportunity space of what we can do is expanding too, right?
Lex Fridman
Mm-hmm.
Mm-hmm.
Sundar Pichai
So I think, hopefully, at least in the near to midterm, for many engineers, it frees up more and more of the… Even in engineering and coding, there are aspects which are so much fun. You’re designing. You’re architecting. You’re solving a problem. There’s a lot of grant work, which all goes hand in hand, but hopefully, it takes a lot of that away, makes it even more fun to code ,frees you up more time to create, problem, solve, brainstorm with your fellow colleagues and so on, right? So that’s the opportunity there.
So I think, hopefully, at least in the near to midterm, for many engineers, it frees up more and more of the… Even in engineering and coding, there are aspects which are so much fun. You’re designing. You’re architecting. You’re solving a problem. There’s a lot of grant work, which all goes hand in hand, but hopefully, it takes a lot of that away, makes it even more fun to code ,frees you up more time to create, problem, solve, brainstorm with your fellow colleagues and so on, right? So that’s the opportunity there.
Second, I think it’ll attract, it’ll put the creative power in more people’s hands, which means people will create more. That means there’ll be more engineers doing more things. So it’s tough to fully predict, but I think in general, in this moment, it feels like people adopt these tools and be better programmers. Like, there are more people playing chess now than ever before, right? So it feels positive that way, to me, at least, speaking from within a Google context, is how I would talk to them about it.
Lex Fridman
Still. I just know anecdotally, a lot of great programmers are generating a lot of code, so their productivity, they’re not always using all the code. There’s still a lot of editing, but even for me, still programming as a side thing, I think I’m like 5x more productive. I think even for a large code base that’s touching a lot of users like Google’s does, I’m imagining, very soon, that productivity should be going up even more.
Still. I just know anecdotally, a lot of great programmers are generating a lot of code, so their productivity, they’re not always using all the code. There’s still a lot of editing, but even for me, still programming as a side thing, I think I’m like 5x more productive. I think even for a large code base that’s touching a lot of users like Google’s does, I’m imagining, very soon, that productivity should be going up even more.
Sundar Pichai
No. The big unlock will be as we make the agentic capabilities much more robust, right? I think that’s what unlocks that next big wave. I think the 10% is a massive number. Like, if tomorrow, I showed up and said, “You can improve a large organization’s productivity by 10%,” when you have tens of thousands of engineers, that’s a phenomenal number, and that’s different than what other site or statistic saying like, “This percentage of code is now written by AI.”
No. The big unlock will be as we make the agentic capabilities much more robust, right? I think that’s what unlocks that next big wave. I think the 10% is a massive number. Like, if tomorrow, I showed up and said, “You can improve a large organization’s productivity by 10%,” when you have tens of thousands of engineers, that’s a phenomenal number, and that’s different than what other site or statistic saying like, “This percentage of code is now written by AI.”
I’m talking more about, like, overall-
Lex Fridman
The actual productivity.
The actual productivity.
Sundar Pichai
The actual productivity. Right? Engineering productivity, which is two different things, which is the more important metric, but I think it’ll get better, right? I think there’s no engineer who, tomorrow, if you magically became 2x more productive, it’s just going to create more things. You’re going to create more value-added things, and so I think you’ll find more satisfaction in your job, right?
The actual productivity. Right? Engineering productivity, which is two different things, which is the more important metric, but I think it’ll get better, right? I think there’s no engineer who, tomorrow, if you magically became 2x more productive, it’s just going to create more things. You’re going to create more value-added things, and so I think you’ll find more satisfaction in your job, right?
Lex Fridman
There’s a lot of aspects. I mean, the actual Google code base might just improve because it’ll become more standardized, more easier for people to move about the code base because AI will help with that, and therefore, that will also allow the AI to understand the entire code base better, which makes the engineering aspect.
There’s a lot of aspects. I mean, the actual Google code base might just improve because it’ll become more standardized, more easier for people to move about the code base because AI will help with that, and therefore, that will also allow the AI to understand the entire code base better, which makes the engineering aspect.
So I’ve been using Cursor a lot as a way to program with Gemini and other models. One of its powerful things is it’s aware of the entire code base, and that allows you to ask questions of it. It allows the agents to move about that code base in a really powerful way. I mean, that’s a huge unlock.
Sundar Pichai
Think about, like, migrations, refactoring old code bases.
Think about, like, migrations, refactoring old code bases.
Lex Fridman
Refactoring, yeah.
Refactoring, yeah.
Sundar Pichai
Yeah. I mean, think about once we can do all this in a much better, more robust way than where we are today.
Yeah. I mean, think about once we can do all this in a much better, more robust way than where we are today.
Lex Fridman
I think in the end, everything will be written in JavaScript and run in Chrome. I think it’s all going to that direction. I mean, just for fun, Google has legendary coding interviews, like rigorous interviews for the engineers. Can you comment on how that has changed in the era of AI? It’s just such a weird… The whiteboard interview, I assume, is not allowed to have some prompts.
I think in the end, everything will be written in JavaScript and run in Chrome. I think it’s all going to that direction. I mean, just for fun, Google has legendary coding interviews, like rigorous interviews for the engineers. Can you comment on how that has changed in the era of AI? It’s just such a weird… The whiteboard interview, I assume, is not allowed to have some prompts.
Sundar Pichai
Such a good question. Look, we are making sure we’ll introduce at least one round of in-person interviews for people just to make sure the fundamentals are there. I think they’ll end up being important, but it’s an equally important skill. Look, if you can use these tools to generate better code, I think that’s an asset. So overall, I think it’s a massive positive.
Such a good question. Look, we are making sure we’ll introduce at least one round of in-person interviews for people just to make sure the fundamentals are there. I think they’ll end up being important, but it’s an equally important skill. Look, if you can use these tools to generate better code, I think that’s an asset. So overall, I think it’s a massive positive.
Lex Fridman
Vibe coding engineer, do you recommend people, students interested in programming still get an education in computer science in college education? What do you think?
Vibe coding engineer, do you recommend people, students interested in programming still get an education in computer science in college education? What do you think?
Sundar Pichai
I do. If you have a passion for computer science, I would. Computer science is obviously a lot more than programming alone, so I would. I still don’t think I would change what you pursue. I think AI will horizontally allow impact every field. It’s pretty tough to predict in what ways. So any education in which you’re learning good first principles thinking, I think, is good education.
I do. If you have a passion for computer science, I would. Computer science is obviously a lot more than programming alone, so I would. I still don’t think I would change what you pursue. I think AI will horizontally allow impact every field. It’s pretty tough to predict in what ways. So any education in which you’re learning good first principles thinking, I think, is good education.
Android
Lex Fridman
You’ve revolutionized web browsing. You’ve revolutionized a lot of things over the years. Android changed the game. It’s an incredible operating system. We could talk for hours about Android. What does the future of Android look like? Is it possible it becomes more and more AI-centric, especially now you throw into the mix, Android XR, with being able to do augmented reality, and mixed reality, and virtual reality in the physical world?
You’ve revolutionized web browsing. You’ve revolutionized a lot of things over the years. Android changed the game. It’s an incredible operating system. We could talk for hours about Android. What does the future of Android look like? Is it possible it becomes more and more AI-centric, especially now you throw into the mix, Android XR, with being able to do augmented reality, and mixed reality, and virtual reality in the physical world?
Sundar Pichai
The best innovations in computing have come through a paradigm IO change, right? When with GUI, and then with a graphical user interface, and then with multi-touch in the context of mobile voice later on. Similarly, I feel like AR is that next paradigm. I think it was held back. Both the system integration challenges of making good AR is very, very hard.
The best innovations in computing have come through a paradigm IO change, right? When with GUI, and then with a graphical user interface, and then with multi-touch in the context of mobile voice later on. Similarly, I feel like AR is that next paradigm. I think it was held back. Both the system integration challenges of making good AR is very, very hard.
The second thing is you need AI to actually kind of… Otherwise, the IO is too complicated for you to have a natural seamless IO to that paradigm. AI ends up being super important, and so this is why Project Astra ends up being super critical for that Android XR world. But it is. I think when you use glasses and… Always been amazed at how useful these things are going to be.
So look, I think it’s a real opportunity for Android. I think XR is one way it’ll kind of really come to life, but I think there’s an opportunity to rethink the mobile OS too, right? I think we’ve been kind of living in this paradigm of apps and shortcuts. All that won’t go away.
But again, if you’re trying to get stuff done at an operating system level, it needs to be more agentic so that you can kind of describe what you want to do or it proactively understands what you’re trying to do, learns from how you’re doing things over and over again and kind of as adapting to you all. That is kind of like the unlock we need to go and do.
Lex Fridman
Well, the basic efficient minimalist UI. I’ve gotten a chance to try the glasses and they’re incredible. It’s the little stuff. It’s hard to put into words, but no latency. It just works. Even that little map demo, where you look down and you look up, and there’s a very smooth transition between the two, and very small amount of useful information is shown to you, enough not to distract from the world outside, but enough to provide a bit of context when you need it.
Well, the basic efficient minimalist UI. I’ve gotten a chance to try the glasses and they’re incredible. It’s the little stuff. It’s hard to put into words, but no latency. It just works. Even that little map demo, where you look down and you look up, and there’s a very smooth transition between the two, and very small amount of useful information is shown to you, enough not to distract from the world outside, but enough to provide a bit of context when you need it.
In order to bring that into reality, you have to solve a lot of the OS problems to make sure it works when you’re integrating the AI into the whole thing. So everything you do launches an agent that answers some basic question.
Sundar Pichai
Good moonshot, you know?
Good moonshot, you know?
Lex Fridman
Yeah, it’s crazy.
Yeah, it’s crazy.
Sundar Pichai
I love it. But I think we are, but it’s much closer to reality than other moonshots. We expect to have classes in the hands of developers later this year and in consumer science next year. So it’s an exciting time.
I love it. But I think we are, but it’s much closer to reality than other moonshots. We expect to have classes in the hands of developers later this year and in consumer science next year. So it’s an exciting time.
Lex Fridman
Yeah, well, extremely well-executed beam, all this stuff, because sometimes you don’t know. Like, somebody commented on a top comment on one of the demos of Beam. They said, “This will either be killed off in five weeks or revolutionize all meetings in five years.” And there’s very much, Google tries so many things, and sometimes, sadly, kills off very promising projects. But because there’s so many other things to focus on.
Yeah, well, extremely well-executed beam, all this stuff, because sometimes you don’t know. Like, somebody commented on a top comment on one of the demos of Beam. They said, “This will either be killed off in five weeks or revolutionize all meetings in five years.” And there’s very much, Google tries so many things, and sometimes, sadly, kills off very promising projects. But because there’s so many other things to focus on.
I use so many Google products. Google Voice, I still use. I’m so glad that’s not being killed off. That’s still alive. Thank you, whoever is defending that, because it’s awesome, and it’s great. They keep innovating. I just want to list off, just as a big thank you, so Search, obviously, Google revolutionized, Chrome, and all of these could be multi-hour conversations. Gmail, I’ve been singing Gmail praises forever. Maps, incredible technological innovation on revolutionizing mapping. Android, like we talked about. YouTube, like we talked about. AdSense, Google Translate for the academic mind…
Lex Fridman
… Google Translate. For the academic mind Google Scholar is incredible. And also the scanning of the books. So making all the world’s knowledge accessible, even with that knowledge is a kind of niche thing, which Google Scholar is. And then obviously with DeepMind, with AlphaZero, AlphaFold and AlphaEvolve, I could talk forever about AlphaEvolve. That’s mind-blowing. All of that released. And as part of that set of things you’ve released in this year when those brilliant articles were written about Google is done. And like we talked about, pioneering self-driving cars and quantum computing, which could be another thing that is low-key that’s scuba diving its way to changing the world forever. So another pothead/ [inaudible 01:42:53] question. If you build AGI, what kind of question would you ask it? What would you want to talk about? Definitively, Google has created AGI that can basically answer any question. What topic are you going to? Where are you going?
… Google Translate. For the academic mind Google Scholar is incredible. And also the scanning of the books. So making all the world’s knowledge accessible, even with that knowledge is a kind of niche thing, which Google Scholar is. And then obviously with DeepMind, with AlphaZero, AlphaFold and AlphaEvolve, I could talk forever about AlphaEvolve. That’s mind-blowing. All of that released. And as part of that set of things you’ve released in this year when those brilliant articles were written about Google is done. And like we talked about, pioneering self-driving cars and quantum computing, which could be another thing that is low-key that’s scuba diving its way to changing the world forever. So another pothead/ [inaudible 01:42:53] question. If you build AGI, what kind of question would you ask it? What would you want to talk about? Definitively, Google has created AGI that can basically answer any question. What topic are you going to? Where are you going?
Questions for AGI
Sundar Pichai
It’s a great question. Maybe it’s proactive by then and should tell me a few things I should know. But I think if I were to ask it, I think it’ll help us understand ourselves much better in a way that’ll surprise us, I think. And so maybe that, you already see people do it with the products, but in a AGI context, I think that’ll be pretty powerful.
It’s a great question. Maybe it’s proactive by then and should tell me a few things I should know. But I think if I were to ask it, I think it’ll help us understand ourselves much better in a way that’ll surprise us, I think. And so maybe that, you already see people do it with the products, but in a AGI context, I think that’ll be pretty powerful.
Lex Fridman
On a personal level, or a general human nature?
On a personal level, or a general human nature?
Sundar Pichai
At a personal level.
At a personal level.
Lex Fridman
Okay.
Okay.
Sundar Pichai
So you talking to AGI, I think there is some chance it’ll understand you in a very deep way, I think in a profound way, that’s a possibility. I think there is also the obvious thing of maybe it helps us understand the universe better in a way that expands the frontiers of our understanding of the world. That is something super exciting. But look, I really don’t know. I think I haven’t had access to something that powerful yet, but I think those are all possibilities.
So you talking to AGI, I think there is some chance it’ll understand you in a very deep way, I think in a profound way, that’s a possibility. I think there is also the obvious thing of maybe it helps us understand the universe better in a way that expands the frontiers of our understanding of the world. That is something super exciting. But look, I really don’t know. I think I haven’t had access to something that powerful yet, but I think those are all possibilities.
Lex Fridman
I think on the personal level, asking questions about yourself, a sequence of questions like that about what makes me happy, I think we would be very surprised to learn through a sequence of questions and answers, we might explore some profound truths in a way that sometimes art reveals to us, great books reveal to us, great conversations with loved ones reveal. Things that are obvious in retrospect, but are nice when they’re said. But for me, number one question is about, how many alien civilizations are there? 100%.
I think on the personal level, asking questions about yourself, a sequence of questions like that about what makes me happy, I think we would be very surprised to learn through a sequence of questions and answers, we might explore some profound truths in a way that sometimes art reveals to us, great books reveal to us, great conversations with loved ones reveal. Things that are obvious in retrospect, but are nice when they’re said. But for me, number one question is about, how many alien civilizations are there? 100%.
Sundar Pichai
That’s going to be your first question?
That’s going to be your first question?
Lex Fridman
Number one, how many living and dead alien civilizations? Maybe a bunch of follow-ups, like how close are they? Are they dangerous? If there’s no alien civilizations, why? Or if there’s no advanced alien civilizations, but bacteria-like life everywhere. Why? What is the barrier preventing it from getting to that? Is it because that when you get sufficiently intelligent, you end up destroying ourselves, because you need competition in order to develop an advanced civilization. And when you have competition it’s going to lead to military conflict, and conflict eventually kills everybody. I don’t know, I’m going to have that kind of discussion.
Number one, how many living and dead alien civilizations? Maybe a bunch of follow-ups, like how close are they? Are they dangerous? If there’s no alien civilizations, why? Or if there’s no advanced alien civilizations, but bacteria-like life everywhere. Why? What is the barrier preventing it from getting to that? Is it because that when you get sufficiently intelligent, you end up destroying ourselves, because you need competition in order to develop an advanced civilization. And when you have competition it’s going to lead to military conflict, and conflict eventually kills everybody. I don’t know, I’m going to have that kind of discussion.
Sundar Pichai
Get an answer to the Fermi Paradox, yeah.
Get an answer to the Fermi Paradox, yeah.
Lex Fridman
Exactly. And have a real discussion about it. I’m realizing now with your answer is a more productive answer, because I’m not sure what I’m going to do with that information. But maybe it speaks to the general human curiosity that Liz talked about, that we’re all just really curious, and making the world’s information accessible allows our curiosity to be satiated some with AI even more, we can be more and more curious and learn more about the world, about ourselves. And in so doing, I always wonder, I don’t know if you can comment on, is it possible to measure the, not the GDP productivity increase like we talked about, but maybe whatever that increases, the breadth and depth of human knowledge that Google has unlocked with Google Search, and now with AI mode with Gemini, it’s a difficult thing to measure.
Exactly. And have a real discussion about it. I’m realizing now with your answer is a more productive answer, because I’m not sure what I’m going to do with that information. But maybe it speaks to the general human curiosity that Liz talked about, that we’re all just really curious, and making the world’s information accessible allows our curiosity to be satiated some with AI even more, we can be more and more curious and learn more about the world, about ourselves. And in so doing, I always wonder, I don’t know if you can comment on, is it possible to measure the, not the GDP productivity increase like we talked about, but maybe whatever that increases, the breadth and depth of human knowledge that Google has unlocked with Google Search, and now with AI mode with Gemini, it’s a difficult thing to measure.
Sundar Pichai
Many years ago there was, I think it was a MIT study, they just estimated the impact of Google Search. And they basically said it’s the equivalent to, on a per person basis, it’s few thousands of dollars per year per person, like is the value that got created per year. But yeah, it’s tough to capture these things, right? You kind of take it for granted as these things come, and the frontier keeps moving. But how do you measure the value of something like AlphaFold over time, and so on?
Many years ago there was, I think it was a MIT study, they just estimated the impact of Google Search. And they basically said it’s the equivalent to, on a per person basis, it’s few thousands of dollars per year per person, like is the value that got created per year. But yeah, it’s tough to capture these things, right? You kind of take it for granted as these things come, and the frontier keeps moving. But how do you measure the value of something like AlphaFold over time, and so on?
Lex Fridman
And also the increasing quality of life when you learn more. I have to say with some of the programming I do done by AI, for some reason I’m more excited to program.
And also the increasing quality of life when you learn more. I have to say with some of the programming I do done by AI, for some reason I’m more excited to program.
Sundar Pichai
Yeah.
Yeah.
Lex Fridman
And so the same with knowledge, with discovering things about the world, it makes you more excited to be alive. It makes you more curious, and the more curious, you are more exciting it is to live and experience the world. And it’s very hard to… I don’t know if that makes you more productive. Probably not nearly as much as it makes you happy to be alive. And that’s a hard thing to measure, the quality of life increases some of these things do. As AI continues to get better and better at everything that humans do, what do you think is the biggest thing that makes us humans special?
And so the same with knowledge, with discovering things about the world, it makes you more excited to be alive. It makes you more curious, and the more curious, you are more exciting it is to live and experience the world. And it’s very hard to… I don’t know if that makes you more productive. Probably not nearly as much as it makes you happy to be alive. And that’s a hard thing to measure, the quality of life increases some of these things do. As AI continues to get better and better at everything that humans do, what do you think is the biggest thing that makes us humans special?
Future of humanity
Sundar Pichai
Look, I think [inaudible 01:48:19] the essence of humanity, there’s something about the consciousness we have, what makes us uniquely human, maybe the lines will blur over time. And it’s tough to articulate. But I hope, hopefully we live in a world where if you make resources more plentiful and make the world lesser of a zero-sum game over time, which it’s not, but in a resource constrained environment, people perceive it to be. And so I hope the values of what makes us uniquely human, empathy, kindness, all that surfaces more is the aspirational hope I have.
Look, I think [inaudible 01:48:19] the essence of humanity, there’s something about the consciousness we have, what makes us uniquely human, maybe the lines will blur over time. And it’s tough to articulate. But I hope, hopefully we live in a world where if you make resources more plentiful and make the world lesser of a zero-sum game over time, which it’s not, but in a resource constrained environment, people perceive it to be. And so I hope the values of what makes us uniquely human, empathy, kindness, all that surfaces more is the aspirational hope I have.
Lex Fridman
Yeah, it multiplies the compassion, but also the curiosity, just the banter, the debates we’ll have about the meaning of it all. And I also think in the scientific domains, all the incredible work that DeepMind is doing, I think we’ll still continue to play, to explore scientific questions, mathematical questions, physics questions, even as AI gets better and better at helping us solve some of the questions. Sometimes the question itself is a really difficult thing.
Yeah, it multiplies the compassion, but also the curiosity, just the banter, the debates we’ll have about the meaning of it all. And I also think in the scientific domains, all the incredible work that DeepMind is doing, I think we’ll still continue to play, to explore scientific questions, mathematical questions, physics questions, even as AI gets better and better at helping us solve some of the questions. Sometimes the question itself is a really difficult thing.
Sundar Pichai
Both the right new questions to ask and the answers to them and the self-discovery process, which it’ll drive, I think. Our early work with both co-scientist and AlphaEvolve, just super exciting to see.
Both the right new questions to ask and the answers to them and the self-discovery process, which it’ll drive, I think. Our early work with both co-scientist and AlphaEvolve, just super exciting to see.
Lex Fridman
What gives you hope about the future of human civilization.
What gives you hope about the future of human civilization.
Sundar Pichai
I’m an optimist, and I look at, if you were to say you take the journey of human civilization, we have relentlessly made the world better in many ways. At any given moment in time, there are big issues to work through it may look, but I always ask myself the question, would you have been born now or any other time in the past? I most often, not most often, almost always would rather be born now. And so that’s the extraordinary thing the human civilization has accomplished, and we’ve kind of constantly made the world a better place. And so something tells me as humanity, we always rise collectively to drive that frontier forward. So I expect it to be no different in the future.
I’m an optimist, and I look at, if you were to say you take the journey of human civilization, we have relentlessly made the world better in many ways. At any given moment in time, there are big issues to work through it may look, but I always ask myself the question, would you have been born now or any other time in the past? I most often, not most often, almost always would rather be born now. And so that’s the extraordinary thing the human civilization has accomplished, and we’ve kind of constantly made the world a better place. And so something tells me as humanity, we always rise collectively to drive that frontier forward. So I expect it to be no different in the future.
Lex Fridman
I agree with you totally. I’m truly grateful to be alive in this moment. And I’m also really excited for the future, and the work you and the incredible teams here are doing is one of the big reasons I’m excited for the future. So thank you. Thank you for all the cool products you’ve built. And please don’t kill Google Voice. Thank you, Sundar.
I agree with you totally. I’m truly grateful to be alive in this moment. And I’m also really excited for the future, and the work you and the incredible teams here are doing is one of the big reasons I’m excited for the future. So thank you. Thank you for all the cool products you’ve built. And please don’t kill Google Voice. Thank you, Sundar.
Sundar Pichai
We won’t. Yeah.
We won’t. Yeah.
Lex Fridman
Thank you for talking today. This was incredible. Thank you.
Thank you for talking today. This was incredible. Thank you.
Sundar Pichai
Real pleasure. Appreciate it.
Real pleasure. Appreciate it.
Demo: Google Beam
Lex Fridman
Thanks for listening to this conversation with Sundar Pichai. To support this podcast, please check out our sponsors in the description or at lexfridman.com/sponsors. Shortly before this conversation, I got a chance to get a couple of demos that frankly blew my mind. The engineering was really impressive. The first demo was Google Beam, and the second demo was the XR glasses. And some of it was caught on video, so I thought I would include here some of those video clips.
Thanks for listening to this conversation with Sundar Pichai. To support this podcast, please check out our sponsors in the description or at lexfridman.com/sponsors. Shortly before this conversation, I got a chance to get a couple of demos that frankly blew my mind. The engineering was really impressive. The first demo was Google Beam, and the second demo was the XR glasses. And some of it was caught on video, so I thought I would include here some of those video clips.
Andrew
Hey Lex, my name’s Andrew.
Hey Lex, my name’s Andrew.
Lex Fridman
How you doing?
How you doing?
Andrew
I lead the Google Beam team and we’re going to be excited to show you a demo. We’re going to show you, I think, a glimpse of something new. So that’s the idea, a way to connect, a way to feel present from anywhere with anybody you care about. Here’s Google Beam. This is a development platform that we’ve built. So there’s a prototype here of Google Beam. There’s one right down the hallway. I’m going to go down and turn that on in a second. We’re going to experience it together. We’ll be back in the same room.
I lead the Google Beam team and we’re going to be excited to show you a demo. We’re going to show you, I think, a glimpse of something new. So that’s the idea, a way to connect, a way to feel present from anywhere with anybody you care about. Here’s Google Beam. This is a development platform that we’ve built. So there’s a prototype here of Google Beam. There’s one right down the hallway. I’m going to go down and turn that on in a second. We’re going to experience it together. We’ll be back in the same room.
Lex Fridman
Wonderful. Whoa. Okay.
Wonderful. Whoa. Okay.
Andrew
Hey Lex, here we are.
Hey Lex, here we are.
Lex Fridman
All right. This is real already. Wow.
All right. This is real already. Wow.
Andrew
This is real.
This is real.
Lex Fridman
Wow.
Wow.
Andrew
Good to see you. This is Google Beam. We’re trying to make it feel like you and I could be anywhere in the world, but when these magic windows open, we’re back together. I see you exactly the same way you see me. It’s almost like we’re sitting at the table sharing a table together, I could learn from you, talk to you, share a meal with you, get to know you.
Good to see you. This is Google Beam. We’re trying to make it feel like you and I could be anywhere in the world, but when these magic windows open, we’re back together. I see you exactly the same way you see me. It’s almost like we’re sitting at the table sharing a table together, I could learn from you, talk to you, share a meal with you, get to know you.
Lex Fridman
So you can feel the depth of this.
So you can feel the depth of this.
Andrew
Yeah, great to meet you.
Yeah, great to meet you.
Lex Fridman
Wow. So for people who probably can’t even imagine what this looks like, there’s a 3D version. It looks real. You look real.
Wow. So for people who probably can’t even imagine what this looks like, there’s a 3D version. It looks real. You look real.
Andrew
Yeah. It looks to me. It looks real to you.
Yeah. It looks to me. It looks real to you.
Lex Fridman
It looks like you’re coming out of the screen.
It looks like you’re coming out of the screen.
Andrew
We quickly believe once we’re in Beam that we’re just together. You settle into it.
We quickly believe once we’re in Beam that we’re just together. You settle into it.
Lex Fridman
Yeah.
Yeah.
Andrew
You’re naturally attuned to seeing the world like this, and you just get used to seeing people this way, but literally from anywhere in the world with these magic screens.
You’re naturally attuned to seeing the world like this, and you just get used to seeing people this way, but literally from anywhere in the world with these magic screens.
Lex Fridman
This is incredible.
This is incredible.
Andrew
It’s a neat technology.
It’s a neat technology.
Lex Fridman
Wow. So I saw demos of this, but they don’t come close to the experience of this. I think one of the top YouTube comments and one of the demos I saw was like, why would I want a high definition? I am trying to turn off the camera. But this actually, this feels like the camera has been turned off and we’re just in the same room together. This is really compelling.
Wow. So I saw demos of this, but they don’t come close to the experience of this. I think one of the top YouTube comments and one of the demos I saw was like, why would I want a high definition? I am trying to turn off the camera. But this actually, this feels like the camera has been turned off and we’re just in the same room together. This is really compelling.
Andrew
That’s right. I know it’s kind of late in the day too. So I brought you a snack just in case you’re a little bit hungry.
That’s right. I know it’s kind of late in the day too. So I brought you a snack just in case you’re a little bit hungry.
Lex Fridman
So can you push it farther and it just becomes-
So can you push it farther and it just becomes-
Andrew
Yeah. Let’s try to float it between rooms. It kind of fades it from my room into yours.
Yeah. Let’s try to float it between rooms. It kind of fades it from my room into yours.
Lex Fridman
And then you see my hand. The depth of my hand.
And then you see my hand. The depth of my hand.
Andrew
Yeah, of course. Yes.
Yeah, of course. Yes.
Lex Fridman
Wow.
Wow.
Andrew
Of course, yeah. It feels like you… Try this, try give me a high five. And there’s almost a sensation of being in touch.
Of course, yeah. It feels like you… Try this, try give me a high five. And there’s almost a sensation of being in touch.
Lex Fridman
Yes.
Yes.
Andrew
You almost feel.
You almost feel.
Lex Fridman
Yes.
Yes.
Andrew
Because you’re so attuned to that should be a high five, it feeling like you could connect with somebody that way.
Because you’re so attuned to that should be a high five, it feeling like you could connect with somebody that way.
Lex Fridman
Yeah.
Yeah.
Andrew
So it’s kind of a magical experience.
So it’s kind of a magical experience.
Lex Fridman
Oh, this is really nice. How much does it cost?
Oh, this is really nice. How much does it cost?
Andrew
Yeah. We’ve got a lot of companies testing it. We just announced that we’re going to be bringing it to offices soon as a set of products. We’ve got some companies helping us build these screens. But eventually, I think this will be in almost every screen.
Yeah. We’ve got a lot of companies testing it. We just announced that we’re going to be bringing it to offices soon as a set of products. We’ve got some companies helping us build these screens. But eventually, I think this will be in almost every screen.
Lex Fridman
There’s nothing, I’m not wearing anything. Well, I’m wearing a suit and tie to clarify, I am wearing clothes. This is not CGI. But outside of that, cool. And the audio is really good. And you can see me in the same three-dimensional way.
There’s nothing, I’m not wearing anything. Well, I’m wearing a suit and tie to clarify, I am wearing clothes. This is not CGI. But outside of that, cool. And the audio is really good. And you can see me in the same three-dimensional way.
Andrew
Yeah, the audio is spatialized. So if I’m talking from here, of course it sounds like I’m talking from here. If I move to the other side of the room to here.
Yeah, the audio is spatialized. So if I’m talking from here, of course it sounds like I’m talking from here. If I move to the other side of the room to here.
Lex Fridman
Wow.
Wow.
Andrew
So these little subtle cues, these really matter to bring people together, all the non-verbals, all the emotion, the things that are lost today. Here it is. We put it back into the system.
So these little subtle cues, these really matter to bring people together, all the non-verbals, all the emotion, the things that are lost today. Here it is. We put it back into the system.
Lex Fridman
You pulled this off. Holy shit, they pulled it off. And integrated into this, I saw the translation also. This is the-
You pulled this off. Holy shit, they pulled it off. And integrated into this, I saw the translation also. This is the-
Andrew
Yeah, we’ve got a bunch of things. Let me show you a couple kind of cool things. Let’s do a little bit of work together. Maybe we could critique one of your latest videos. So you and I work together, so of course we’re in the same room. But with the super power, I can bring other things in here with me. And it’s nice. It’s like we could sit together, we could watch something. We could work. We’ve shared meals as a team together in this system. But once you do the presence aspect of this, you want to bring some other superpowers to it.
Yeah, we’ve got a bunch of things. Let me show you a couple kind of cool things. Let’s do a little bit of work together. Maybe we could critique one of your latest videos. So you and I work together, so of course we’re in the same room. But with the super power, I can bring other things in here with me. And it’s nice. It’s like we could sit together, we could watch something. We could work. We’ve shared meals as a team together in this system. But once you do the presence aspect of this, you want to bring some other superpowers to it.
Lex Fridman
Wow. And so you could do review code together.
Wow. And so you could do review code together.
Andrew
Yeah, yeah, exactly. I’ve got some slides I’m working on. Maybe you could help me with this. Keep your eyes on me for a second. I’ll slide back into the center. I didn’t really move. But the system just kind of puts us in the right spot and knows where we need to be.
Yeah, yeah, exactly. I’ve got some slides I’m working on. Maybe you could help me with this. Keep your eyes on me for a second. I’ll slide back into the center. I didn’t really move. But the system just kind of puts us in the right spot and knows where we need to be.
Lex Fridman
Oh, so you just turned to your laptop, the system moves you, and then it does the overlay automatically.
Oh, so you just turned to your laptop, the system moves you, and then it does the overlay automatically.
Andrew
It kind of warps the room to put things in the spot that they need to be in.
It kind of warps the room to put things in the spot that they need to be in.
Lex Fridman
Yeah.
Yeah.
Andrew
Everything has a place in the room, everything has a sense of presence or spatial consistency. And that makes it feel like we’re together with us and other things.
Everything has a place in the room, everything has a sense of presence or spatial consistency. And that makes it feel like we’re together with us and other things.
Lex Fridman
I should also say, you’re not just three-dimensional, it feels like you’re leaning out of the screen, you’re coming out of the screen. You’re not just in that world three-dimensionaly. Yeah, exactly. Holy crap. Move back to center. Okay.
I should also say, you’re not just three-dimensional, it feels like you’re leaning out of the screen, you’re coming out of the screen. You’re not just in that world three-dimensionaly. Yeah, exactly. Holy crap. Move back to center. Okay.
Andrew
Let me tell you how this works. You probably already have the premise of it. But there’s two things, two really hard things that we put together. One is a AI video model. So there’s a set of cameras, you asked about those earlier. There’s six color cameras, just like webcams that we have today, taking video streams and feeding them into our AI model and turning that into a 3D video of you and I. It’s effectively a light field. So it’s kind of an interactive 3D video that you can see from any perspective. That’s transmitted over to the second thing. And that’s a light field display. And it’s happening bidirectionally. I see you and you see me both in our light field displays. These are effectively flat televisions or flat displays, but they have the sense of dimensionality, depth, size is correct. You can see shadows and lighting are correct. And everything’s correct from your vantage point.
Let me tell you how this works. You probably already have the premise of it. But there’s two things, two really hard things that we put together. One is a AI video model. So there’s a set of cameras, you asked about those earlier. There’s six color cameras, just like webcams that we have today, taking video streams and feeding them into our AI model and turning that into a 3D video of you and I. It’s effectively a light field. So it’s kind of an interactive 3D video that you can see from any perspective. That’s transmitted over to the second thing. And that’s a light field display. And it’s happening bidirectionally. I see you and you see me both in our light field displays. These are effectively flat televisions or flat displays, but they have the sense of dimensionality, depth, size is correct. You can see shadows and lighting are correct. And everything’s correct from your vantage point.
So if you move around ever so slightly, and I hold still, you see a different perspective here. You see kind of things that were included become revealed. You see shadows that move in the way they should move. All of that’s computed and generated using our AI video model for you. It’s based on your eye position, where does the right scene need to be placed in this light field display for you just to feel present?
Lex Fridman
It’s real time. No latency. I’m not seeing latency. You weren’t freezing up at all.
It’s real time. No latency. I’m not seeing latency. You weren’t freezing up at all.
Andrew
No, no, I hope not. I think it’s you and I together real time. That’s what you need for real communication. And at a quality level it’s realistic.
No, no, I hope not. I think it’s you and I together real time. That’s what you need for real communication. And at a quality level it’s realistic.
Lex Fridman
This is awesome. Is it possible to do three people? Is that going to move that way also?
This is awesome. Is it possible to do three people? Is that going to move that way also?
Andrew
Yeah. Let me kind of show you. So if she enters the room with us, you can see her, you can see me. And if we had more people, you eventually lose a sense of presence. You kind of shrink people down. You lose a sense of scale. So think of it as the window fits a certain number of people. If you want to fit a big group of people, you want the boardroom or the big room, you need a much wider window. If you want to see just grandma and the kids, you can do smaller windows. So everybody has a seat at the table, or everybody has a sense of where they belong, and there’s this sense of presence that’s obeyed. If you have too many people, you kind of go back to 2D metaphors that we’re used to people in tiles placed anywhere.
Yeah. Let me kind of show you. So if she enters the room with us, you can see her, you can see me. And if we had more people, you eventually lose a sense of presence. You kind of shrink people down. You lose a sense of scale. So think of it as the window fits a certain number of people. If you want to fit a big group of people, you want the boardroom or the big room, you need a much wider window. If you want to see just grandma and the kids, you can do smaller windows. So everybody has a seat at the table, or everybody has a sense of where they belong, and there’s this sense of presence that’s obeyed. If you have too many people, you kind of go back to 2D metaphors that we’re used to people in tiles placed anywhere.
Lex Fridman
For the image I’m seeing, did you have to get scanned?
For the image I’m seeing, did you have to get scanned?
Andrew
I mean, I see you without being scanned. So it’s just so much easier if you don’t have to wear anything. You don’t have to pre-scan.
I mean, I see you without being scanned. So it’s just so much easier if you don’t have to wear anything. You don’t have to pre-scan.
Lex Fridman
Yeah.
Yeah.
Andrew
And you just do it the way it’s supposed to happen without anybody having to learn anything or put anything on.
And you just do it the way it’s supposed to happen without anybody having to learn anything or put anything on.
Lex Fridman
I thought you had to solve the scanning problem. But here you don’t. It’s just cameras. Its just vision.
I thought you had to solve the scanning problem. But here you don’t. It’s just cameras. Its just vision.
Andrew
That’s right. It’s video. Yeah, we’re not trying to make an approximation of you, because everything you do every day matters. I cut myself shaving, I put on a pin. All the little kind of aspects of you, those just happen. We don’t have the time to scan or kind of capture those or dress avatars. We kind of appear as we appear. And so all that’s transmitted truthfully as it’s happening.
That’s right. It’s video. Yeah, we’re not trying to make an approximation of you, because everything you do every day matters. I cut myself shaving, I put on a pin. All the little kind of aspects of you, those just happen. We don’t have the time to scan or kind of capture those or dress avatars. We kind of appear as we appear. And so all that’s transmitted truthfully as it’s happening.
Demo: Google XR Glasses
Speaker 3
How you doing?
How you doing?
Lex Fridman
Good to meet you.
Good to meet you.
Speaker 3
Nice to meet you. So as Max mentioned, got the eye glasses here. We start with the foundation of great glasses, something stylish, lightweight, wearable. Then we say how can we build great technology and experiences on top of that? One of the core tenets of the Android XR platform, this idea of a multimodal conversational device. See what you see, hear what you hear. So you’ve got a camera, you’ve got speakers, multiple microphones for speaker isolation. I’ll give you a chance to try these yourself. Yeah, sorry, I woke it up there.
Nice to meet you. So as Max mentioned, got the eye glasses here. We start with the foundation of great glasses, something stylish, lightweight, wearable. Then we say how can we build great technology and experiences on top of that? One of the core tenets of the Android XR platform, this idea of a multimodal conversational device. See what you see, hear what you hear. So you’ve got a camera, you’ve got speakers, multiple microphones for speaker isolation. I’ll give you a chance to try these yourself. Yeah, sorry, I woke it up there.
Lex Fridman
Whoa.
Whoa.
Speaker 3
Yeah. So the first thing you see is a super simple, straightforward home screen.
Yeah. So the first thing you see is a super simple, straightforward home screen.
Lex Fridman
Yes.
Yes.
Speaker 3
So you probably see the time, the weather, calendar, appointments there. This is designed to be sort of your one-stop shop for quick glanceable information throughout the day. We want it to do something that’s easy to get what you need, and then go back to what you’re doing. So you can imagine turning on the display, getting that quick glance, and then continuing on your way. You can be fully conversational at this point. You can ask questions for example about the paintings. You can interrupt. You can ask follow up questions. And as I mentioned before, if you want to at any time, pause, you just tap there on the right.
So you probably see the time, the weather, calendar, appointments there. This is designed to be sort of your one-stop shop for quick glanceable information throughout the day. We want it to do something that’s easy to get what you need, and then go back to what you’re doing. So you can imagine turning on the display, getting that quick glance, and then continuing on your way. You can be fully conversational at this point. You can ask questions for example about the paintings. You can interrupt. You can ask follow up questions. And as I mentioned before, if you want to at any time, pause, you just tap there on the right.
Lex Fridman
Gemini, how much does this painting cost?
Gemini, how much does this painting cost?
Gemini
The painting is called the Bridge of Louis-Philippe, 1875 by Armand Guillaumin. It appears to be a print. And it would be impossible to know it’s cost without finding the seller.
The painting is called the Bridge of Louis-Philippe, 1875 by Armand Guillaumin. It appears to be a print. And it would be impossible to know it’s cost without finding the seller.
Lex Fridman
Okay, so this is fake. I understand. Why do humans pay so much money for paintings?
Okay, so this is fake. I understand. Why do humans pay so much money for paintings?
Gemini
People pay a lot for paintings, because of their artistic merits, the artist’s name and rarity, and for the appreciation you learn.
People pay a lot for paintings, because of their artistic merits, the artist’s name and rarity, and for the appreciation you learn.
Speaker 3
So a few more things that we want to show you just for sake of time, you go ahead and long press on the side again to salute Gemini there. There you go. Did you catch Google I/O last week by any chance?
So a few more things that we want to show you just for sake of time, you go ahead and long press on the side again to salute Gemini there. There you go. Did you catch Google I/O last week by any chance?
Lex Fridman
Yes.
Yes.
Speaker 3
So you might’ve seen on stage the Google Maps experience very briefly. I wanted to give you a chance to get a sense of what that feels like today. You can imagine you’re walking down the street. If you look up like you’re walking straight ahead, you get quick turn-by-turn directions, so you have a sense of what the next turn is like.
So you might’ve seen on stage the Google Maps experience very briefly. I wanted to give you a chance to get a sense of what that feels like today. You can imagine you’re walking down the street. If you look up like you’re walking straight ahead, you get quick turn-by-turn directions, so you have a sense of what the next turn is like.
Lex Fridman
Whoa. Nice.
Whoa. Nice.
Speaker 3
Keeping your phone in your pocket.
Keeping your phone in your pocket.
Lex Fridman
Oh, that’s so intuitive.
Oh, that’s so intuitive.
Speaker 3
Sometimes you need that quick sense of which way’s the right way?
Sometimes you need that quick sense of which way’s the right way?
Lex Fridman
Yeah. Sometimes.
Yeah. Sometimes.
Speaker 3
Yeah. So let’s say you’re coming out of Subway, getting out of a cab. You can just glance down at your feet. We have it set up to translate from Russian to English. I think I get to wear the glasses and you speak to me, if you don’t mind.
Yeah. So let’s say you’re coming out of Subway, getting out of a cab. You can just glance down at your feet. We have it set up to translate from Russian to English. I think I get to wear the glasses and you speak to me, if you don’t mind.
Lex Fridman
I can speak Russian. [foreign language 02:01:27].
I can speak Russian. [foreign language 02:01:27].
Speaker 3
I’m doing well. How are you doing?
I’m doing well. How are you doing?
Lex Fridman
I’m tempted to swear, tempted to say inappropriate things. [foreign language 02:01:37].
I’m tempted to swear, tempted to say inappropriate things. [foreign language 02:01:37].
Speaker 3
I see it transcribed in real time. And so obviously based on the different languages and the sequence of subjects and verbs, there’s a slight delay sometimes, but it’s really just like subtitles for the real world. Cool.
I see it transcribed in real time. And so obviously based on the different languages and the sequence of subjects and verbs, there’s a slight delay sometimes, but it’s really just like subtitles for the real world. Cool.
Biggest invention in human history
Lex Fridman
Thank you for this. All right, back to me. Hopefully watching videos of me having my mind blown like the apes in 2001 Space Odyssey playing with a monolith was somewhat interesting. Like I said, I was very impressed. And now I thought, if it’s okay, I could make a few additional comments about the episode and just in general. In this conversation with Sundar Pichai, I discussed the concept of the Neolithic package, which is the set of innovations that came along with the first agricultural revolution about 12,000 years ago, which included the formation of social hierarchies, the early primitive forms of government, labor specialization, domestication of plants and animals, early forms of trade, large scale cooperations of humans like that required to build, yes, the pyramids and temples like Göbekli Tepe. I think this may be the right way to actually talk about the inventions that changed human history, not just as a single invention, but as a kind of network of innovations and transformations that came along with it.
Thank you for this. All right, back to me. Hopefully watching videos of me having my mind blown like the apes in 2001 Space Odyssey playing with a monolith was somewhat interesting. Like I said, I was very impressed. And now I thought, if it’s okay, I could make a few additional comments about the episode and just in general. In this conversation with Sundar Pichai, I discussed the concept of the Neolithic package, which is the set of innovations that came along with the first agricultural revolution about 12,000 years ago, which included the formation of social hierarchies, the early primitive forms of government, labor specialization, domestication of plants and animals, early forms of trade, large scale cooperations of humans like that required to build, yes, the pyramids and temples like Göbekli Tepe. I think this may be the right way to actually talk about the inventions that changed human history, not just as a single invention, but as a kind of network of innovations and transformations that came along with it.
And the productivity multiplier framework that I mentioned in the episode, I think is a nice way to try to concretize the impact of each of these inventions under consideration. And we have to remember that each node in the network of the fast follow-on inventions is in itself a productivity multiplier. Some are additive, some are multiplicative. So in some sense, the size of the network in the package is the thing that matters when you’re trying to rank the impact of inventions on human history. The easy picks for the period of biggest transformation, at least in sort of modern day discourse is the Industrial Revolution, or even in the 20th century, the computer or the internet. I think it’s because it’s easiest to intuit for modern day humans, the exponential impact of those technologies.
But recently, I suppose this changes week to week, but I have been doing a lot of reading on ancient human history. So recently my pick for the number one invention would have to be the first agricultural revolution, the Neolithic package that led to the formation of human civilizations. That’s what enabled the scaling of the collective intelligence machine of humanity, and for us to become the early bootloader for the next 10,000 years of technological progress, which yes, includes AI and the tech that builds on top of AI. And of course it could be argued that the word invention doesn’t properly apply to the agricultural revolution. I think actually Yuval Noah Harari argues that it wasn’t the humans who were the inventors, but a handful of plant species, namely wheat, rice and potatoes. This is strictly a fair perspective. But I’m having fun, like I said, with this discussion. Here, I just think of the entire earth as a system that continuously transforms. And I’m using the term invention in that context. Asking the question of when was the biggest leap on the log-scale plot of human progress?
Will AI, AGI, ASI eventually take the number one spot on this ranking? I think it has a very good chance to do so due again to the size of the network of inventions that will come along with it. I think we discuss in this podcast the kind of things that would be included in the so-called AI package. But I think there’s a lot more possibilities, including discussed in previous podcasts and many previous podcasts, including with Dario Amodei, talking on the biological innovation side, the science progress side. And this podcast, I think we talk about something that I’m particularly excited about in the near term, which is unlocking the cognitive capacity of the entire landscape of brains that is the human species. Making it more accessible through education and through machine translation, making information, knowledge and the rapid learning and innovation process accessible to more humans, to the entire 8 billion, if you will. So I do think language or machine translation apply to all the different methods that we use on the internet to discover knowledge is a big unlock. But there are a lot of other stuff in the so-called AI package like discussed with Dario, curing all major human diseases. He really focuses on that in The Machines of Love and Grace essay. I think there will be huge leaps in productivity for human programmers and semi-autonomous human programmers. So humans in the loop, but most of the programming is done by AI agents. And then moving that towards a superhuman AI researcher that’s doing the research that develops and programs the AI system in itself. I think there’ll be huge transformative effects from autonomous vehicles. These are the things that we maybe don’t immediately understand, or we understand from an economics perspective, but there will be a point when AI systems are able to interpret, understand, interact with the human world to sufficient degree to where many of the manually controlled human in the loop systems we rely on become fully autonomous.
And I think mobility is such a big part of human civilization that there will be effects on that, that they’re not just economic, but are social cultural and so on. And there’s a lot more things I could talk about for a long time. So obviously the integration utilization of AI in the creation of art, film, music, I think the digitalization and automating basic functions of government, and then integrating AI into that process, thereby decreasing corruption and costs and increasing transparency and efficiency. I think we as humans, individual humans, will continue to transition further and further into cyborgs. There’s already a AI in the loop of the human condition, and that will become increasingly so as AI becomes more powerful. The thing I’m obviously really excited about is major breakthroughs in science, and not just on the medical front but on fundamental physics, which would then lead to energy breakthroughs increasing the chance that we become, we actually become a Kardashev Type I civilization. And then enabling us in so doing to do interstellar exploration of space and colonization of space. I think there also in the near term, much like with the industrial revolution that led to rapid specialization of skills of expertise, there might be a great sort of de-specialization. So as the AI system become superhuman experts at particular fields, there might be greater and greater value to being the integrator of AIs for humans to be generalists. And so the great value of the human mind will come from the generalists, not the specialists. That’s a real possibility that that changes the way we are about the world, that we want to know a little bit of a lot of things and move about the world in that way. That could have when passing a certain threshold, a complete shift in who we are as a collective intelligence as a human species. Also as an aside, when thinking about the invention that was the greatest in human history, again for a bit of fun, we have to remember that all of them build on top of each other.
And so we need to look at the Delta, the step change on the, I would say impossibly to perfectly measure plot of exponential human progress. Really we can go back to the entire history of life on earth. And a previous podcast guest, Nick Lane does a great job of this in his book Life Ascending, listing these 10 major inventions throughout the evolution of life on earth like DNA, photosynthesis, complex cells, sex, movement, sight, all those kinds of things. I forget the full list that’s on there. But I think that’s so far from the human experience that my intuition about, let’s say productivity multipliers of those particular inventions completely breaks down, and a different framework is needed to understand the impact of these inventions of evolution. The origin of life on Earth, or even the Big Bang itself of course is the OG invention that set the stage for all the rest of it. And there are probably many more turtles under that which are yet to be discovered.
So anyway, we live in interesting times, fellow humans. I do believe the set of positive trajectories for humanity outnumber the set of negative trajectories, but not by much. So let’s not mess this up. And now let me leave you with some words from French philosopher Jean de La Bruyère, “Out of difficulties, grow miracles.” Thank you for listening, and hope to see you next time.