Results
13 articlesSort
2:53:42EN
Lex Fridman· May 29, 2026Podcast · 2 speakersThe Moon Is Falling. It Just Keeps Missing.Guest Biggest Mysteries in Physics · Host Lex FridmanFermilab physicist Don Lincoln tells Lex Fridman that the history of physics is a history of unification, and that antimatter, dark energy, and a theory of everything still sit far beyond the experiments we can run.
3:00:50ENLex Fridman· May 5, 2025Podcast · 2 speakersA Black Hole Is a Place, Not a ThingGuest Janna Levin · Host Lex FridmanTheoretical physicist Janna Levin tells Lex Fridman why the event horizon is empty spacetime, why Hawking’s radiation started a war over information, and why gravity itself may not be fundamental.
2:35:24ENLex Fridman· Apr 22, 2024Podcast · 2 speakersThe Equation Was Smarter Than EinsteinGuest Sean Carroll · Host Lex FridmanSean Carroll tells Lex Fridman why general relativity is the most beautiful theory in physics, and why its equation predicted black holes, gravitational waves, and the Big Bang before anyone, including Einstein, understood them.
1:56:31ENLex Fridman· Oct 12, 2020Podcast · 2 speakersA Blank Wall Is Not More Conscious Than a PersonGuest Scott Aaronson · Host Lex FridmanScott Aaronson walks Lex Fridman through integrated information theory, Penrose’s uncomputable mind, GPT-3, P versus NP, and why silent support for open discourse has to get louder.
4:23:39ENLex Fridman· Sep 15, 2020Podcast · 2 speakersThe Universe's Rule Might Fit on a PostcardGuest Stephen Wolfram · Host Lex FridmanStephen Wolfram tells Lex Fridman how a short computational rule on a hypergraph could generate space, time, relativity, and quantum mechanics.
1:27:57ENLex Fridman· Mar 31, 2020Podcast · 2 speakersThe Brain's Best Computer Has No Inner LifeGuest Roger Penrose · Host Lex FridmanRoger Penrose tells Lex Fridman why HAL raises a moral problem the field will not name, why the cerebellum wrecks the computational theory of mind, and why gravity, Gödel, and an infinite cosmos all hang on the same kind of understanding.
1:09:52ENLex Fridman· Mar 7, 2020Podcast · 2 speakersLee Smolin Does Not Believe in the Scientific MethodGuest Lee Smolin · Host Lex FridmanThe theoretical physicist talks with Lex Fridman about realism, the measurement problem, and why finishing Einstein’s revolution means treating time as fundamental and locality as optional.
1:29:58ENLex Fridman· Nov 1, 2019Podcast · 2 speakersBelieve the Schrödinger Equation. The Cost Is Extra WorldsGuest Sean Carroll · Host Lex FridmanSean Carroll talks with Lex Fridman about why many-worlds is the barest form of quantum mechanics, why spacetime may only be an approximation, and why measurement should not be a primitive in the laws of physics.
21:55ENLex FridmanPodcast · 2 speakersQuantum Computing Without the Hype: Amplitudes, Interference and the Long Road to Error CorrectionGuest Scott Aaronson · Host Lex FridmanScott Aaronson explains what a quantum computer really is, why it is not just trying every answer at once, and why noise is the field's central obstacle.
18:45ENLex FridmanPodcast · 2 speakersWhy Sean Carroll Thinks Many-Worlds Is the Cleanest Version of Quantum MechanicsGuest Sean Carroll · Host Lex FridmanThe Caltech physicist explains how Everett's idea works, answers the energy-conservation objection, and compares it with its rivals.
22:59ENLex FridmanPodcastPenrose on Why Consciousness Can't Be a ComputationHost Lex FridmanRoger Penrose explains how a dissatisfaction with AI optimism, a tip about microtubules and a rethink of quantum mechanics led him to Orch OR.
22:17ENLex FridmanPodcastWhat Is Real? Lee Smolin on Realism, Science and StorytellingHost Lex FridmanThe theoretical physicist explains why he believes in a world independent of our perception, why he doubts there is a single scientific method, and where realism meets quantum mechanics.
26:23ENLex FridmanPodcastTime Is Real, Space Is Emergent: Lee Smolin on Finishing Einstein's RevolutionHost Lex FridmanTheoretical physicist Lee Smolin explains why quantum theory and general relativity remain unreconciled, and why he thinks causality is fundamental and locality is not.