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Home » FULL TRANSCRIPT: Lex Fridman on Joe Rogan Podcast

FULL TRANSCRIPT: Lex Fridman on Joe Rogan Podcast

Read the full transcript of Lex Fridman’s interview on Joe Rogan Experience #2260 which was live on Jan 22, 2025. Lex Fridman is a computer scientist and researcher in the field of artificial intelligence and robotics, and host of the Lex Fridman Podcast.

Listen to the audio version here:

TRANSCRIPT:

Space Exploration and Reproduction

JOE ROGAN: So, Jamie, what was your question?

JAMIE: It was to Lex, but it was really like, you see, I wouldn’t know. Hardcore science question. Yeah. Based on physics.

JOE ROGAN: Okay.

JAMIE: In theory, if you were in space and you maybe ejaculated, is it possible that the ejaculate would propel you backwards? Like send you, you know, like is it propulsion? Is there enough power in there to propel you?

LEX FRIDMAN: There’s only one way to find out.

JOE ROGAN: It depends on how long you hold it in for. Right? Like if you didn’t jerk off for like four months, and then you have like the mother load.

JAMIE: I mean, you need something to go one way, so you go the other way. Yeah, yeah. And Lex had an answer, but I don’t know. What?

JAMIE: He had a thought, I guess. What if you blow out at the same time? Yeah, yeah. Yeah.

LEX FRIDMAN: I think in space, like the biodynamics of the liquids is different. Oh, yeah. I think it’s actually difficult to have sex in space and to get people pregnant in space.

JOE ROGAN: Has anybody ever gotten pregnant on the space station? Are they allowed even to have sex?

LEX FRIDMAN: No, nobody has officially had sex in space. Officially. Officially, but unofficially, of course, people have tried.

JOE ROGAN: I wonder if they have. I mean, how monitored are they?

LEX FRIDMAN: There is a Wikipedia page about sex in space, and it’s actually pretty detailed. But it’s Wikipedia, so you know it’s half bullshit.

There’s citations. I encourage people to look into it, read in detail. I mean, it’s a serious problem. If you want to colonize space, you probably want to have a lot of sex and get pregnant and have kids.

JOE ROGAN: Well, don’t you think they’ll develop some sort of gravity-generating machine?

LEX FRIDMAN: Yeah, absolutely. You have to. Like Jeff Bezos talks about this a lot, like how you create artificial gravity in space. Because for Jeff Bezos, the likely way to colonize space is to have space stations. Elon is more focused on colonizing planets, Mars. So both are obviously going to be necessary, and you’re going to need to have gravity in order to get laid.

JOE ROGAN: Bro, the first people that make that trip, ooh.

LEX FRIDMAN: Yeah, Jay was saying he wants to go. I mean, not that trip, but a trip.

JOE ROGAN: You go eventually? Why not? Oh, dude, why? What if you die out there?

LEX FRIDMAN: Okay, I’m going to die. Everybody dies.

JOE ROGAN: Yeah, but you don’t want to die that way, dude.

LEX FRIDMAN: If you get to decide one way to die, that’s not one of the worst ways.

JOE ROGAN: It’s the worst way. You’re going to die in space, running out of air.

JOE ROGAN: You don’t know how it’s going to happen. What about reentry? Yeah, you could just cook instantly. Could be on the way up. You get hit by a micrometeorite. Could be while you’re asleep up there. Could be.

LEX FRIDMAN: Imagine standing on Mars, looking back at Earth.

JOE ROGAN: Going, what the hell did I do? Why did I do this?

LEX FRIDMAN: Yeah, and then having kids on Mars. Teaching them. We came from there.

JOE ROGAN: Do you think homeschooling’s bad? How about space schooling?

LEX FRIDMAN: Just imagine the crazy stuff that happens on Mars. I mean, it’s going to be, what, 100,000 people?

JOE ROGAN: Yeah, so you’re going to get one psycho who’s going to run everything. And they’re going to take over. Probably some cult leader. Convinces everybody to do it his way.

LEX FRIDMAN: It’s going to be a sex cult, 100%.

JOE ROGAN: 100%. And we’re back to sex in space. Right, they’re going to say, listen, if Elon is their man, Elon wants to procreate every chance he can. How many kids does he have now?

LEX FRIDMAN: Allegedly. Double digits. We don’t even know how many.

JOE ROGAN: Does he think he’s got secret kids?

LEX FRIDMAN: They think it was they. They? The people that run the world. Is there a Wikipedia page on this?

JOE ROGAN: There probably is. He’s probably got secret kids. Secret kids. Yeah. When you have, like, what does he have, like, 300-plus billion dollars? That’s growing. You can have a few ladies here, there, all over the place having kids. There’s a lot of ladies who just want to have kids. They don’t want a guy around. Yeah. Especially when they get a little older. There’s a castle in the south of France with, like, a harem just waiting for them.

JOE ROGAN: Yeah. Just waiting for daddy. Allegedly. To land his rocket ship. Online it officially says at least 12. At least 12 kids. See, nobody even knows. Imagine no one knows how many kids you have.

LEX FRIDMAN: That’s kind of crazy. Yeah, yeah. Well, that’s the situation Genghis Khan was in.

JOE ROGAN: Well, he was doing it a little differently. He was a little bit more forceful.

LEX FRIDMAN: Actually, I mean, there’s a lot of different perspectives on that. What’s the book on Genghis Khan? So first of all, there’s obviously the Dan Carlin, Wrath of the Khans. And in that series of podcasts he criticizes the book Jack… Weatherford. Weatherford. Making of the Modern World.

JOE ROGAN: Genghis Khan and the Making of the Modern World. The Mongols and the Making of the Modern World. Yeah, so that’s the – and now – there it is. Nice.

Historical Perspectives on Genghis Khan

JOE ROGAN: That is one of the things that Dan Carlin talks about, that when enough time has passed, that they sort of look at these marauders and murderers in a different light and think, oh, he opened up trade to the east.