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1:50:28EN
Lex Fridman· Aug 29, 2025Podcast · 2 speakersThe 87-Kilobyte Program Two Billion People Open Every MonthGuest Dave Plummer · Host Lex FridmanDave Plummer talks Lex Fridman through Task Manager, old-school Microsoft, and how an autistic mind actually works.
6:08:48ENLex Fridman· Jul 12, 2025Podcast · 2 speakersNobody Serious Believes Cookie Banners Help AnyoneGuest DHH · Host Lex FridmanLex Fridman talks with David Heinemeier Hansson for six hours about Ruby, Rails, AI, leaving the cloud, Apple's App Store, and why a small company can still refuse other people's money.
4:25:19ENLex Fridman· Apr 30, 2025Podcast · 2 speakersA shareware text editor, a 30-hour binge, and a five-year war with AppleGuest Tim Sweeney · Host Lex FridmanTim Sweeney traces Unreal Engine’s thirty-year climb, the four-week birth of Fortnite Battle Royale, a new language for the metaverse, and why he thinks Apple is on the wrong side of computing history.
3:34:03ENLex Fridman· Jun 2, 2023Podcast · 2 speakersPython Isn't Finished: Chris Lattner on Mojo and the Hardware MessGuest Chris Lattner · Host Lex FridmanThe LLVM creator returns to Lex Fridman to argue that Python should grow C-like performance instead of forcing people out of the language.
3:15:51ENLex Fridman· Nov 26, 2022Podcast · 2 speakersPython Is a Recipe Written for Two ReadersGuest Guido van Rossum · Host Lex FridmanGuido van Rossum on CPython’s 3.11 speedups, indentation, the GIL, and why a 4.0 would hurt extensions more than syntax.
5:14:50ENLex Fridman· Aug 4, 2022Podcast · 2 speakersThe best programming language is the one you already useGuest John Carmack · Host Lex FridmanJohn Carmack talks with Lex Fridman about languages, id Software, VR, rockets, and why AGI might be tens of thousands of lines of code.
2:46:40ENLex Fridman· Dec 23, 2021Podcast · 2 speakersThe Tools That Fit in a Head Were Built by People Who Fit in a VanGuest Peter Wang · Host Lex FridmanAnaconda's Peter Wang talks with Lex Fridman about Python, cybernetic systems, and why sharing software creates value that scarcity economics still cannot price.
3:05:24ENLex Fridman· Sep 22, 2021Podcast · 2 speakersTravis Oliphant wrote NumPy in an empty semester — and still wants open source to payGuest Travis Oliphant · Host Lex FridmanThe creator of NumPy, SciPy, and Anaconda tells Lex Fridman how array thinking, a priced book, and the packaging wars shaped scientific Python.
2:21:27ENLex Fridman· Sep 9, 2021Podcast · 2 speakersThe IBM Manual Was So Bad He Became a Computer ScientistGuest Donald Knuth · Host Lex FridmanDonald Knuth talks with Lex Fridman about first programs on an IBM 650, literate programming, the Knuth-Morris-Pratt algorithm, and the hardest theorem he ever proved.
3:03:38ENLex Fridman· Feb 12, 2021Podcast · 2 speakersA Ten-Day Language That Still Runs the WebGuest Brendan Eich · Host Lex FridmanBrendan Eich tells Lex Fridman how JavaScript, Firefox, Mozilla, and Brave were built from rushed bets, open-source escape pods, and accidental tracking.
2:46:57ENLex Fridman· Oct 18, 2020Podcast · 2 speakersProgramming Languages Are Bicycles for the MindGuest Chris Lattner · Host Lex FridmanChris Lattner talks with Lex Fridman about Swift, LLVM, RISC-V, and why the next leap in computing is as much a language problem as a silicon one.
1:51:01ENLex Fridman· Sep 24, 2020Podcast · 2 speakersJames Gosling Built Java to Make Pointer Bugs Impossible. Chrome Still Has Them.Guest James Gosling · Host Lex FridmanIn a 2020 conversation with Lex Fridman, Java’s designer traces a line from a neglected PDP-8 to Emacs, the JVM, and a thirty-year war on memory errors.
1:43:10ENLex Fridman· Jul 18, 2020Podcast · 2 speakersKen Thompson's Wife Left for Three Weeks. He Wrote Unix.Guest Brian Kernighan · Host Lex FridmanBrian Kernighan walks Lex Fridman through Bell Labs, C, AWK, AMPL, and a lifetime of tools that millions of people still run — including all of his mistakes.
3:11:09ENLex Fridman· Apr 18, 2020Podcast · 2 speakersIn the computational universe, the animals are always smarter than youGuest Stephen Wolfram · Host Lex FridmanStephen Wolfram talks with Lex Fridman about Rule 30, computational irreducibility, a hypergraph model of physics, and why Wolfram Language is a notation for talking about the world.
1:45:56ENLex Fridman· Dec 30, 2019Podcast · 2 speakersPoint eight is enough: Donald Knuth on algorithms, TeX, and a life in one chairGuest Donald Knuth · Host Lex FridmanLex Fridman visits Donald Knuth at home for a conversation about the IBM 650, geek brains, literate programming, The Art of Computer Programming, TeX, P versus NP, and a happiness budget of 80 percent.
1:47:13ENLex Fridman· Nov 7, 2019Podcast · 2 speakersWhen You Hit the Brakes, a Computer Is in the WayGuest Bjarne Stroustrup · Host Lex FridmanBjarne Stroustrup on why C++ still sits between the pedal and the pads, and why an abstraction that costs extra has no place in the language.
1:13:06ENLex Fridman· May 13, 2019Podcast · 2 speakersThe Compiler That Got Apple, Google, and Intel to Share a CodebaseGuest Chris Lattner · Host Lex FridmanChris Lattner walks through LLVM, Clang, Swift, TPU numeric formats, and why compiler work is mostly software engineering.
1:26:44ENLex Fridman· Nov 22, 2018Podcast · 2 speakersHe raised Python like a child, then set it freeGuest Guido van Rossum · Host Lex FridmanIn a 2018 conversation with Lex Fridman, Guido van Rossum traces Python from electronics kits and Conway's Game of Life to the Thursday morning he resigned as benevolent dictator for life.
10:20ENLex FridmanPodcast · 2 speakersHow C++ Is Standardized: Votes, Consensus and the Move to a Three-Year Release CycleGuest Bjarne Stroustrup · Host Lex FridmanBjarne Stroustrup explains how the ISO committee works, why C++0x slipped to C++11, and how shorter cycles made C++14, C++17 and C++20 arrive on time.
10:24ENLex FridmanPodcast · 2 speakersConcepts: How C++ Finally Got Compile-Time Constraints on TemplatesGuest Bjarne Stroustrup · Host Lex FridmanBjarne Stroustrup explains what C++ concepts are, why they are real and shippable today, and why it took decades to get them right.
40:25ENLex FridmanPodcastA Language That Knows the World: Stephen Wolfram on Computable KnowledgeHost Lex FridmanIn this clip from the Lex Fridman Podcast, Stephen Wolfram explains what makes the Wolfram Language different from ordinary programming languages and how it grew into a computable knowledge base, from Wolfram Alpha to computational contracts.
57:15ENLex FridmanPodcastInside Torch and Autograd: How Deep Learning Libraries Compute GradientsHost Lex FridmanAlex Wiltschko of Twitter walks through Lua Torch, then explains automatic differentiation and what separates modern deep learning frameworks.
14:47ENLex FridmanPodcast · 2 speakersBuild Your Own Types: What Bjarne Stroustrup Learned from Simula, Fortran and LispGuest Bjarne Stroustrup · Host Lex FridmanThe creator of C++ traces how Simula's user-defined types shaped his language, and why he builds for constrained, long-lived systems.