Adam Frank: Alien Civilizations and the Search for Extraterrestrial Life | Lex Fridman Podcast #455

Adam Frank is an astrophysicist studying star systems and the search for extraterrestrial life and alien civilizations. Thank you for listening ❤ Check out our sponsors: https://lexfridman.com/sponsors/ep455-sb See below for timestamps, transcript, and to give feedback, submit questions, contact Lex, etc. Transcript: https://lexfridman.com/adam-frank-tra... CONTACT LEX: Feedback - give feedback to Lex: https://lexfridman.com/survey AMA - submit questions, videos or call-in: https://lexfridman.com/ama Hiring - join our team: https://lexfridman.com/hiring Other - other ways to get in touch: https://lexfridman.com/contact EPISODE LINKS: Adam's Website: https://adamfrankscience.com Adam's X: https://x.com/adamfrank4 Adam's Instagram: / adamfrankscience Adam's Books: The Little Book of Aliens: https://amzn.to/3OTX1rP Light of the Stars: https://amzn.to/4iMKC6C The Blind Spot: https://amzn.to/4gOCe4K The Constant Fire: https://amzn.to/3ZVnxX4 SPONSORS: To support this podcast, check out our sponsors & get discounts: Encord: AI tooling for annotation & data management. Go to https://lexfridman.com/s/encord-ep455-sb Eight Sleep: Temp-controlled smart mattress cover. Go to https://lexfridman.com/s/eight_sleep-... Shopify: Sell stuff online. Go to https://lexfridman.com/s/shopify-ep45... NetSuite: Business management software. Go to https://lexfridman.com/s/netsuite-ep4... BetterHelp: Online therapy and counseling. Go to https://lexfridman.com/s/betterhelp-e... Notion: Note-taking and team collaboration. Go to https://lexfridman.com/s/notion-ep455-sb LMNT: Zero-sugar electrolyte drink mix. Go to https://lexfridman.com/s/lmnt-ep455-sb AG1: All-in-one daily nutrition drinks. Go to https://lexfridman.com/s/ag1-ep455-sb OUTLINE: 0:00 - Introduction 1:58 - Planet formation 7:08 - Plate tectonics 14:30 - Extinction events 18:41 - Biosphere 21:39 - Technosphere 25:53 - Emergence of intelligence 32:06 - Drake equation 36:20 - Exoplanets 39:04 - Habitable zones 42:06 - Fermi Paradox 51:04 - Alien civilizations 1:00:32 - Colonizing Mars 1:12:48 - Search for aliens 1:29:13 - Alien megastructures 1:35:19 - Kardashev scale 1:40:32 - Detecting aliens 1:47:14 - Warp drives 1:53:21 - Cryogenics 1:56:39 - What aliens look like 2:05:24 - Alien contact 2:16:29 - UFO sightings 2:28:14 - Physics of life 2:54:05 - Nature of time 3:10:29 - Cognition 3:14:53 - Mortality PODCAST LINKS: Podcast Website: https://lexfridman.com/podcast Apple Podcasts: https://apple.co/2lwqZIr Spotify: https://spoti.fi/2nEwCF8 RSS: https://lexfridman.com/feed/podcast/ Podcast Playlist: • Lex Fridman Podcast Clips Channel: / lexclips SOCIAL LINKS: X: https://x.com/lexfridman Instagram: / lexfridman TikTok: / lexfridman LinkedIn: / lexfridman Facebook: / lexfridman Patreon: / lexfridman Telegram: https://t.me/lexfridman Reddit: / lexfridman