#474 – DHH: Future of Programming, AI, Ruby on Rails, Productivity & Parenting

Travis Oliphant is a data scientist, entrepreneur, and creator of NumPy, SciPy, and Anaconda. Please support this podcast by checking out our sponsors: - Novo: https://banknovo.com/lex - Allform: https://allform.com/lex to get 20% off - Onnit: https://lexfridman.com/onnit to get up to 10% off - Athletic Greens: https://athleticgreens.com/lex and use code LEX to get 1 month of fish oil - Blinkist: https://blinkist.com/lex and use code LEX to get 25% off premium EPISODE LINKS: Travis's Twitter: https://twitter.com/teoliphant Travis's Wiki Page: https://en.wikipedia.org/wiki/Travis_Oliphant NumPy: https://numpy.org/ SciPy: https://scipy.org/about.html Anaconda: https://www.anaconda.com/products/individual Quansight: https://www.quansight.com PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ YouTube Full Episodes: https://youtube.com/lexfridman YouTube Clips: https://youtube.com/lexclips SUPPORT & CONNECT: - Check out the sponsors above, it's the best way to support this podcast - Support on Patreon: https://www.patreon.com/lexfridman - Twitter: https://twitter.com/lexfridman - Instagram: https://www.instagram.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/lexfridman - Medium: https://medium.com/@lexfridman OUTLINE: Here's the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time. (00:00) - Introduction (07:06) - Early programming (28:47) - SciPy (45:41) - Open source (57:23) - NumPy (1:34:39) - Guido van Rossum (1:46:57) - Efficiency (1:55:49) - Objects (2:02:47) - Numba (2:11:53) - Anaconda (2:16:20) - Conda (2:31:56) - Quansight Labs (2:35:32) - OpenTeams (2:43:05) - GitHub (2:48:35) - Marketing (2:53:13) - Great programming (3:04:03) - Hiring (3:08:01) - Advice for young people

23 Syys 20210s

Travis Stevens is the 2016 Olympic Judo silver medalist and BJJ black belt. Please support this podcast by checking out our sponsors: - Justworks: https://justworks.com - Indeed: https://indeed.com/lex to get $75 credit - MasterClass: https://masterclass.com/lex to get 15% off - Eight Sleep: https://www.eightsleep.com/lex and use code LEX to get special savings EPISODE LINKS: Travis's Website: https://www.travisstevensgrappling.com/ Travis's Twitter: https://twitter.com/judosilencer Travis's Youtube Channel: https://www.youtube.com/c/TravisStevensgrappling Travis's Instagram: https://www.instagram.com/judosilencer PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ YouTube Full Episodes: https://youtube.com/lexfridman YouTube Clips: https://youtube.com/lexclips SUPPORT & CONNECT: - Check out the sponsors above, it's the best way to support this podcast - Support on Patreon: https://www.patreon.com/lexfridman - Twitter: https://twitter.com/lexfridman - Instagram: https://www.instagram.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/lexfridman - Medium: https://medium.com/@lexfridman OUTLINE: Here's the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time. (00:00) - Introduction (10:08) - What is Judo? (17:55) - Travis's signature throw (23:20) - Fundamentals (25:12) - Throws (38:04) - Gripping (46:37) - Weight cutting (1:15:50) - Injuries (1:19:50) - Jiu-Jitsu (1:23:33) - Lex on his judo competition experience (1:26:58) - Levels of mastery (1:40:09) - Matches (1:54:10) - Travis inspired Lex to practice judo (2:00:24) - London 2012 Olympic games (2:42:01) - 2016 Olympic games (3:16:24) - Mixed team competition (3:23:50) - The value of epic throws (3:27:17) - Shohei Ono (3:33:39) - Chess (3:38:42) - The coach (3:45:18) - Advice for young people

21 Syys 20210s

Jay McClelland is a cognitive scientist at Stanford. Please support this podcast by checking out our sponsors: - Paperspace: https://gradient.run/lex to get $15 credit - Skiff: https://skiff.org/lex to get early access - Uprising Food: https://uprisingfood.com/lex to get $10 off 1st starter bundle - Four Sigmatic: https://foursigmatic.com/lex and use code LexPod to get up to 60% off - Onnit: https://lexfridman.com/onnit to get up to 10% off EPISODE LINKS: Jay's Website: https://stanford.edu/~jlmcc/ PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ YouTube Full Episodes: https://youtube.com/lexfridman YouTube Clips: https://youtube.com/lexclips SUPPORT & CONNECT: - Check out the sponsors above, it's the best way to support this podcast - Support on Patreon: https://www.patreon.com/lexfridman - Twitter: https://twitter.com/lexfridman - Instagram: https://www.instagram.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/lexfridman - Medium: https://medium.com/@lexfridman OUTLINE: Here's the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time. (00:00) - Introduction (07:12) - Beauty in neural networks (11:31) - Darwin and evolution (17:16) - The origin of intelligence (23:58) - Explorations in cognition (30:02) - Learning representations by back-propagating errors (36:27) - Dave Rumelhart and cognitive modeling (49:30) - Connectionism (1:12:23) - Geoffrey Hinton (1:14:19) - Learning in a neural network (1:31:11) - Mathematics & reality (1:38:19) - Modeling intelligence (1:48:57) - Noam Chomsky and linguistic cognition (2:03:18) - Advice for young people (2:14:26) - Psychiatry and exploring the mind (2:27:04) - Legacy (2:32:53) - Meaning of life

20 Syys 20210s

Douglas Lenat is the founder of Cyc, a 37 year project aiming to solve common-sense knowledge and reasoning in AI. Please support this podcast by checking out our sponsors: - Squarespace: https://lexfridman.com/squarespace and use code LEX to get 10% off - BiOptimizers: http://www.magbreakthrough.com/lex to get 10% off - Stamps.com: https://stamps.com and use code LEX to get free postage & scale - LMNT: https://drinkLMNT.com/lex to get free sample pack - ExpressVPN: https://expressvpn.com/lexpod and use code LexPod to get 3 months free EPISODE LINKS: Douglas's Twitter: https://twitter.com/cycorpai Cyc's Website: https://cyc.com PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ YouTube Full Episodes: https://youtube.com/lexfridman YouTube Clips: https://youtube.com/lexclips SUPPORT & CONNECT: - Check out the sponsors above, it's the best way to support this podcast - Support on Patreon: https://www.patreon.com/lexfridman - Twitter: https://twitter.com/lexfridman - Instagram: https://www.instagram.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/lexfridman - Medium: https://medium.com/@lexfridman OUTLINE: Here's the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time. (00:00) - Introduction (07:39) - What is Cyc? (15:45) - How to form a knowledge base of the universe (26:11) - How to train an AI knowledge base (30:32) - Global consistency versus local consistency (54:53) - Automated reasoning (1:00:33) - Direct uses of AI and machine learning (1:13:11) - The semantic web (1:23:44) - Tools to help Cyc interpret data (1:32:54) - The most beautiful idea about Cyc (1:38:53) - Love and consciousness in AI (1:45:52) - The greatness of Marvin Minsky (1:50:46) - Is Cyc just a beautiful dream? (1:55:31) - What is OpenCyc and how was it born? (2:01:21) - The open source community and OpenCyc (2:11:48) - The inference problem (2:13:31) - Cyc's programming language (2:21:05) - Ontological engineering (2:28:30) - Do machines think? (2:37:15) - Death and consciousness (2:47:16) - What would you say to AI? (2:51:52) - Advice to young people (2:53:48) - Mortality

15 Syys 20210s

Niels Jorgensen is a former New York firefighter for over 21 years, who was there at Ground Zero on September 11th, 2001. Please support this podcast by checking out our sponsors: - ROKA: https://roka.com/ and use code LEX to get 20% off your first order - MUD\WTR: https://mudwtr.com/lex and use code LEX to get 5% off - Magic Spoon: https://magicspoon.com/lex and use code LEX to get $5 off - Blinkist: https://blinkist.com/lex and use code LEX to get 25% off premium EPISODE LINKS: Niels's 20 for 20 Podcast: https://ironlightlabs.org/20-for-20/ PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ YouTube Full Episodes: https://youtube.com/lexfridman YouTube Clips: https://youtube.com/lexclips SUPPORT & CONNECT: - Check out the sponsors above, it's the best way to support this podcast - Support on Patreon: https://www.patreon.com/lexfridman - Twitter: https://twitter.com/lexfridman - Instagram: https://www.instagram.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/lexfridman - Medium: https://medium.com/@lexfridman OUTLINE: Here's the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time. (00:00) - Introduction (08:52) - September 11, 2001 (36:48) - Falling man (40:58) - Ground Zero (47:17) - 20 for 20 (50:27) - What it means to be a great firefighter (53:11) - Why did you become a firefighter? (55:00) - Tally Ho (57:46) - New view of the world (1:05:16) - Empathy (1:09:49) - Leukemia (1:25:18) - New York City (1:31:28) - John Feal (1:44:57) - Conspiracy theories (1:53:45) - Faith (1:55:44) - Modern communication (2:00:11) - Hand written letters (2:14:02) - Love (2:25:45) - War in Afghanistan (2:37:24) - Brave stories from 9/11

11 Syys 20212h 49min

Donald Knuth is a computer scientist, Turing Award winner, father of algorithm analysis, author of The Art of Computer Programming, and creator of TeX. Please support this podcast by checking out our sponsors: - Coinbase: https://coinbase.com/lex to get $5 in free Bitcoin - InsideTracker: https://insidetracker.com/lex and use code Lex25 to get 25% off - NetSuite: http://netsuite.com/lex to get free product tour - ExpressVPN: https://expressvpn.com/lexpod and use code LexPod to get 3 months free - BetterHelp: https://betterhelp.com/lex to get 10% off EPISODE LINKS: Donald's Stanford Page: https://profiles.stanford.edu/donald-knuth Donald's Books: https://amzn.to/3heyBsC PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ YouTube Full Episodes: https://youtube.com/lexfridman YouTube Clips: https://youtube.com/lexclips SUPPORT & CONNECT: - Check out the sponsors above, it's the best way to support this podcast - Support on Patreon: https://www.patreon.com/lexfridman - Twitter: https://twitter.com/lexfridman - Instagram: https://www.instagram.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/lexfridman - Medium: https://medium.com/@lexfridman OUTLINE: Here's the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time. (00:00) - Introduction (07:02) - First programs (30:26) - Literate programming (33:35) - Beauty in programming (39:30) - OpenAI (48:41) - Optimization (54:46) - Consciousness (1:03:29) - Conway's game of life (1:16:16) - Stable marriage (1:19:35) - Richard Feynman (1:30:29) - Knuth-Morris-Pratt Algorithm (1:40:02) - Hardest problem (1:57:41) - Open source (2:02:54) - Favorite symbols (2:12:27) - Productivity (2:20:08) - Meaning of life

9 Syys 20212h 27min

Jaron Lanier is a computer scientist, composer, artist, author, and founder of the field of virtual reality. Please support this podcast by checking out our sponsors: - Skiff: https://skiff.org/lex to get early access - Novo: https://banknovo.com/lex - Onnit: https://lexfridman.com/onnit to get up to 10% off - Indeed: https://indeed.com/lex to get $75 credit - Eight Sleep: https://www.eightsleep.com/lex and use code LEX to get special savings EPISODE LINKS: Jaron's Website: http://www.jaronlanier.com/ Jaron's Books: https://amzn.to/3tlhl9T PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ YouTube Full Episodes: https://youtube.com/lexfridman YouTube Clips: https://youtube.com/lexclips SUPPORT & CONNECT: - Check out the sponsors above, it's the best way to support this podcast - Support on Patreon: https://www.patreon.com/lexfridman - Twitter: https://twitter.com/lexfridman - Instagram: https://www.instagram.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/lexfridman - Medium: https://medium.com/@lexfridman OUTLINE: Here's the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time. (00:00) - Introduction (08:04) - What is reality? (12:17) - Turing machines (13:35) - Simulating our universe (19:49) - Video games and other immersive experiences (23:37) - Death and consciousness (32:08) - Designing human-centric AI (33:42) - Empathy with robots (37:33) - Social media incentives (49:53) - Data dignity (57:26) - Jack Dorsey and Twitter (1:09:10) - Bitcoin and cryptocurrencies (1:13:51) - Government overreach and freedom (1:24:06) - GitHub and TikTok (1:26:16) - The Autodidactic Universe (1:31:07) - Humans and the mystery of music (1:37:17) - Defining moments (1:48:03) - Mortality (1:49:56) - The meaning of life

6 Syys 20211h 58min

Rodney Brooks is a roboticist, former head of CSAIL at MIT, and co-founder of iRobot, Rethink Robotics, and Robust.AI. Please support this podcast by checking out our sponsors: - Paperspace: https://gradient.run/lex to get $15 credit - GiveDirectly: https://givedirectly.org/lex to get gift matched up to $300 - BiOptimizers: http://www.magbreakthrough.com/lex to get 10% off - Four Sigmatic: https://foursigmatic.com/lex and use code LexPod to get up to 60% off - SimpliSafe: https://simplisafe.com/lex and use code LEX to get a free security camera EPISODE LINKS: Rodney's Twitter: https://twitter.com/rodneyabrooks Rodney's Blog: http://rodneybrooks.com/blog/ PODCAST INFO: Podcast website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ YouTube Full Episodes: https://youtube.com/lexfridman YouTube Clips: https://youtube.com/lexclips SUPPORT & CONNECT: - Check out the sponsors above, it's the best way to support this podcast - Support on Patreon: https://www.patreon.com/lexfridman - Twitter: https://twitter.com/lexfridman - Instagram: https://www.instagram.com/lexfridman - LinkedIn: https://www.linkedin.com/in/lexfridman - Facebook: https://www.facebook.com/lexfridman - Medium: https://medium.com/@lexfridman OUTLINE: Here's the timestamps for the episode. On some podcast players you should be able to click the timestamp to jump to that time. (00:00) - Introduction (07:33) - First robots (28:58) - Brains and computers (1:01:47) - Self-driving cars (1:21:57) - Believing in the impossible (1:32:47) - Predictions (1:43:49) - iRobot (2:11:11) - Sharing an office with AI experts (2:23:21) - Advice for young people (2:27:07) - Meaning of life

3 Syys 20212h 30min