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Latest episode · #502 · 1w ago
AI, Mathematics, and the Future of Discovery
Lex Fridman talks with mathematicians Steven Brunton, Ankur Moitra, and Alex about AI-reported proofs involving the quasi-Riemann hypothesis, Navier–Stokes, the unique games conjecture, and Fermat’s Last Theorem. They weigh what these resu…
3h 42m -
Psychiatry’s History, Treatments and Unfinished Crisis
Historian Andrew Scull joins Lex Fridman to examine psychiatry’s history and its present limits. They discuss diagnostic categories and the DSM, the difficulty of separating brain biology from social and psychological experience, and the g…
3h 43m -
DHH: Programming in the Age of AI and Building Omachi
David Heinemeier Hansen shares his dramatic transition from a skeptical programmer handcrafting Ruby code to an enthusiastic practitioner of agentic engineering. He discusses the creation of the Omachi Linux distribution, the radical speed…
5h 21m -
Khabib Nurmagomedov on Fighting, Faith and Legacy
Lex Fridman speaks with Khabib Nurmagomedov about the people and experiences that shaped his fighting career, from basic gyms in Dagestan and his father’s coaching to his demanding training, transition into MMA and approach to opponents. K…
3h 19m -
Gary Gallagher: Causes, Battles, and Memory of the Civil War
This episode features a comprehensive conversation with Civil War historian Gary Gallagher, exploring the complex causes, military strategies, and profound human cost of the American Civil War. The discussion delves into the institution of…
3h 53m -
The Roman Empire That Continued in the East
Lex Fridman speaks with historian Anthony Kaldellis about the Eastern Roman Empire and why its people should be understood as Romans, not as members of a separate “Byzantine” state. They trace Rome’s long political continuity, the spread o…
3h 58m -
Don Lincoln: Physics, Unification, and the Higgs Boson
Particle physicist Don Lincoln provides a profound exploration of the history of physics through the lens of unification, tracing the journey from Newton’s gravity to Maxwell’s electromagnetism and Einstein’s space-time. The conversation d…
3h 01m -
FFmpeg and VLC: The Invisible Backbone of Digital Media
This episode provides a deep dive into the engineering, culture, and impact of FFmpeg and VLC. Jean-Baptiste Kempf and Kieran Cunha explain the mechanics of video codecs, the necessity of handcrafted assembly for performance, and the philo…
4h 23m -
Lars Brownworth: The Viking Age, Normans & Byzantium
In this episode, historian Lars Brownworth explores the multifaceted legacy of the Viking Age, the rise of the Normans, and the enduring importance of the Byzantine Empire. Brownworth argues that the Vikings were not mere marauders, but hi…
2h 09m -
Jensen Huang on AI, NVIDIA, and the Future of Computing
Lex Fridman speaks with NVIDIA CEO Jensen Huang about the company’s shift from GPUs to full AI systems, the role of CUDA and its developer base, and how NVIDIA anticipates changes in AI models. Huang discusses pre-training, inference, agen…
2h 32m -
Jeff Kaplan on WoW, Overwatch, and Making Games
Lex Fridman speaks with game designer Jeff Kaplan about his path from an obsessive player of arcade games, Quake and EverQuest to designing World of Warcraft and Overwatch at Blizzard. Kaplan discusses creative writing, rejection, depressi…
5h 16m -
Rick Beato on Music, Creativity, and AI
Lex Fridman speaks with musician, educator, producer, and interviewer Rick Beato about how people learn music and what makes it powerful. Beato discusses ear training, perfect and relative pitch, guitar practice, his son Dylan's ability to…
2h 42m -
Peter Steinberger on OpenClaw and Agentic AI
Peter Steinberger, creator of OpenClaw, joins Lex Friedman to explain how a one-hour WhatsApp-to-agent prototype grew into a tool that can act on a user’s computer. They discuss its early experiments, personality and memory, the difficult …
3h 25m -
AI in 2025: Models, Scaling, Work and What Comes Next
Lex Fridman talks with machine learning researchers Sebastian Raschka and Nathan Lambert about AI developments over the past year and what may come next. They compare U.S. and Chinese labs, consumer and coding models, and the rise of open-…
4h 39m -
Paul Rosalie: Protecting the Amazon and First Contact Story
In this episode, naturalist Paul Rosalie details the harrowing and profound realities of protecting the Amazon rainforest. He recounts a historic, high-stakes first contact encounter with a previously uncontacted tribe, illustrating both t…
3h 14m -
Infinity, Mathematical Truth, and the Set-Theoretic Multiverse
Mathematician and philosopher Joel David Hamkins joins Lex Fridman to discuss infinity, set theory, and the foundations of mathematics. They explore Hilbert’s Hotel, Cantor’s diagonal argument, ZFC, Russell’s paradox, Gödel’s incompletenes…
4h 05m -
Irving Finkel on Cuneiform, Flood Myths and Ancient Life
Lex Fridman speaks with Irving Finkel, a curator and scholar of cuneiform, about how writing began and how the surviving evidence may give a partial picture of ancient life. Finkel explains how cuneiform worked, how it was deciphered, the …
2h 14m -
Michael Levin on Minds, Biology and Intelligence
Michael Levin and Lex Fridman explore how to recognize intelligence across biological, computational and other systems. Levin proposes treating minds as a continuum and testing systems through the goals they pursue, what they learn, and ho…
3h 27m -
David Kirtley on Helion’s Approach to Nuclear Fusion
Lex Fridman speaks with David Kirtley, CEO of Helion Energy, about nuclear fusion and the company’s magneto-inertial approach. Kirtley explains fusion fuels, how fusion differs from fission, and the safety, waste and weapons-proliferation …
2h 45m -
Dan Houser: Creative Vision of Rockstar and Absurd Ventures
Dan Houser, co-founder of Rockstar Games, discusses the intersection of cinematic storytelling and complex open-world design. He explores the philosophy behind creating 360-degree characters like Arthur Morgan and Niko Bellic, emphasizing …
2h 54m -
Julia Shaw: Psychology of Evil, Memory, and Green Crime
In this extensive conversation, criminal psychologist Julia Shaw explores the nuances of human nature, questioning the traditional binary of good versus evil. She defines the dark tetrad on a continuum, advocating for a more empathetic app…
2h 48m -
Pavel Durov: Telegram, Freedom, and Tech Innovation
In this deep, philosophical discussion, Pavel Durov shares his uncompromising commitment to freedom, privacy, and personal discipline. He details the lean, highly efficient engineering philosophy behind Telegram, which allows it to out-inn…
4h 42m -
Norman Ohler: The Dark History of Drugs in Nazi Germany
In this rich dialogue, author Norman Ohler uncovers the pervasive and historically overlooked role of narcotics in Nazi Germany. By analyzing primary archive documents, Ohler explains how methamphetamine supported the aggressive Blitzkrieg…
4h 31m -
Paleontology: Tyrannosaurus Rex Biology and Evolution
In this engaging exploration of paleontology, Dave Hone details the biological and ecological realities of the T-Rex, moving past common movie myths. He explains the T-Rex as a highly efficient, powerful predator, likely nocturnal and focu…
3h 41m -
Dave Plummer on Windows, Programming, and Autism
Lex Fridman talks with programmer Dave Plummer about his path from discovering a TRS-80 and programming a Commodore 64 to working on MS-DOS, Windows 95, Windows NT, Task Manager, ZIP support, and other Microsoft projects. Plummer recalls l…
1h 59m
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