Michio Kaku: Future of Humans, Aliens, Space Travel & Physics | Lex Fridman Podcast #45

Michio Kaku is a theoretical physicist, futurist, and professor at the City College of New York. He is the author of many fascinating books on the nature of our reality and the future of our civilization. Thank you for listening ❤ Check out our sponsors: https://lexfridman.com/sponsors/ep45-sb See below for timestamps, and to give feedback, submit questions, contact Lex, etc. *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 *OUTLINE:* 0:00 - Introduction 1:14 - Contact with Aliens in the 21st century 6:36 - Multiverse and Nirvana 9:46 - String Theory 11:07 - Einstein's God 15:01 - Would aliens hurt us? 17:34 - What would aliens look like? 22:13 - Brain-machine interfaces 27:35 - Existential risk from AI 30:22 - Digital immortality 34:02 - Biological immortality 37:42 - Does mortality give meaning? 43:42 - String theory 47:16 - Universe as a computer and a simulation 53:16 - First human on Mars *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: https://www.youtube.com/playlist?list=PLrAXtmErZgOdP_8GztsuKi9nrraNbKKp4 - Clips Channel: https://www.youtube.com/lexclips *SOCIAL LINKS:* - X: https://x.com/lexfridman - Instagram: https://instagram.com/lexfridman - TikTok: https://tiktok.com/@lexfridman - LinkedIn: https://linkedin.com/in/lexfridman - Facebook: https://facebook.com/lexfridman - Patreon: https://patreon.com/lexfridman - Telegram: https://t.me/lexfridman - Reddit: https://reddit.com/r/lexfridman