#501 – DHH: Future of Programming, AI, Agentic Engineering, Vibe Coding & Linux

**Lex Fridman** (0:00)
The following is a conversation with David Heinemeyer Hansen, also known as DHH, creator of Ruby on Rails, CTO of 37signals, creator of the new Omarchy Linux operating system, best-selling author, race car driver, and one of the most outspoken and prolific programmers in the world. For the past 20 plus years, for him, programming meant meticulously hand crafting beautiful Ruby code. But recently, since late 2025, DHH has embraced the AI revolution and has openly transformed himself into, once again, one of the most outspoken and prolific agentic engineers, even though he hates that term. So let's say, practitioners of whatever programming is becoming, where AI is doing most of the actual programming and the human steers the ship with high-level design, vision, and taste. Yes, it's true, DHH is, at times, controversial, but he's always fearless, brilliant, and fun to talk to. This was, once again, an intense, eye-opening, and a wild rollercoaster ride of a conversation.
And now, a quick few-second mention we sponsor. Check them out in the description or at lexfridman.com/sponsors.
It is, in fact, the best way to support this podcast. We got Whispr Flow for voice-to-text writing, Blitzy for code generation and large code bases, NetSuite for business management software, Shopify for selling stuff online, Element for electrolytes, Plaud for AI-powered note-taking, Hicksfield for video generation, and Proplexity for curiosity-driven knowledge exploration. Choose wisely, my friends. And now, on to the full ad reads for some of these. A bunch of sponsors on this episode. They are all in their own right. Truly incredible companies, incredible services, products. I know a lot of the people involved, and there are just so many brilliant people there, from the leadership to the individual engineers. It really is amazing to be sponsored by these folks. Anyway, if you don't want to listen to me ramble about the awesomeness of these companies, you can just skip. I make it easy, but please still check out the sponsors. I enjoy their stuff. Maybe you will too. Also to get in touch with me for whatever reason, go to lexfridman.com/contact. All right, let's go. This episode is brought to you by Wispr Flow, an incredible AI voice dictation app. I've been using it for a long, long time across all my devices. I actually talked to DHH in this conversation about the fact that I was surprised with myself that voice-based interaction with AI systems and with the computer in general is something that I was hesitant about, and then I completely switched over to where a lot of the really difficult things I have to do that require a lot of thinking and deliberation, I actually will do with voice. And we'll talk about the challenges of that. And I believe, if I remember correctly, I don't remember if it was on mic or off mic, but I sang praises to Wispr Flow because it's been with me for a long time. And it's a tool I use across the different operating system, I use it on all my devices. It's very accurate, as accurate as you would think we should be able to do in this day and age. And before Wispr Flow, that wasn't done. So anyway, go to wisprflow.ai/lex to get one month of Wispr Flow Pro free. That's W-I-S-P-R Flow dot A-I slash Lex. This episode is brought to you by Blitzy, an A-I-powered autonomous software development platform. It's built, designed, customized for large complex code bases, works with large companies to ship software much faster via a lot of agents working together. The very kind of process that DHH and I talk endlessly about in all kinds of different ways that we're all trying to figure out how to do at the small individual scale of one developer, and obviously companies like Lexia trying to figure out how to do this at the large, large complex code base scale of companies. They focus on delivering a large percentage, over 80% of the work autonomously, and also importantly, do it fast. Again, DHH quotes Nietzsche with Amor Fatih, accepting the rapidly evolving times, and it is true that we are evolving towards the case that most of programming is autonomous programming. Meaning most of the actual code writing is done by AI. If not 100%, it certainly is heading that way. Learn more or speak to a member of the team at blitzy.com/lex. That's blitzy.com/lex.
This episode is also brought to you by our old friend NetSuite, an all in one AI powered business management system. Speaking of businesses, they specialize in businesses. They know what it's like to work with companies that have real work to do and have to do it at scale. And those companies is a machine. It is a hierarchical machine. It's a modular machine where the different modules have to operate within themselves and then communicate effectively. And you have to manage both the modules and the glue. I'm going too far with this metaphor.