Sean Carroll: General Relativity, Quantum Mechanics, Black Holes & Aliens | Lex Fridman Podcast #428

ℹ️ EPISODE INFO

Released

April 22, 2024

Duration

2h 35m

Channel

Lex Fridman Podcast

Watch on YouTube

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📝 EPISODE DESCRIPTION

Sean Carroll is a theoretical physicist, author, and host of Mindscape podcast. Please support this podcast by checking out our sponsors:

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TRANSCRIPT: https://lexfridman.com/sean-carroll-3-transcript EPISODE LINKS: Sean's Website: https://preposterousuniverse.com Mindscape Podcast: https://www.preposterousuniverse.com/podcast/ Sean's YouTube: https://youtube.com/@seancarroll Sean's Patreon: https://www.patreon.com/seanmcarroll Sean's Twitter: https://twitter.com/seanmcarroll Sean's Instagram: https://instagram.com/seanmcarroll Sean's Papers: https://scholar.google.com/citations?user=Lfifrv8AAAAJ Sean's Books: https://amzn.to/3W7yT9N 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/ Full episodes playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOdP_8GztsuKi9nrraNbKKp4 Clips playlist: https://www.youtube.com/playlist?list=PLrAXtmErZgOeciFP3CBCIEElOJeitOr41 OUTLINE: 0:00 - Introduction 1:54 - General relativity 14:13 - Black holes 19:03 - Hawking radiation 23:10 - Aliens 32:06 - Holographic principle 56:29 - Dark energy 1:02:29 - Dark matter 1:11:25 - Quantum mechanics 1:32:47 - Simulation 1:35:09 - AGI 1:49:33 - Complexity 2:02:17 - Consciousness 2:11:23 - Naturalism 2:15:40 - Limits of science 2:20:25 - Mindscape podcast 2:30:21 - Einstein SOCIAL:

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🎤 SPEAKERS

• Sean Carroll

  guest

• Lex Fridman

  host

• Narrator

  other

🧾 EPISODE SUMMARY

In this episode of Lex Fridman Podcast, featuring Sean Carroll and Lex Fridman, Sean Carroll: General Relativity, Quantum Mechanics, Black Holes & Aliens | Lex Fridman Podcast #428 explores sean Carroll Explores Relativity, Black Holes, Quantum Worlds, and Aliens Sean Carroll joins Lex Fridman to explain general relativity, black holes, quantum mechanics, and the many‑worlds interpretation in technically serious but accessible terms. They discuss how spacetime curvature explains gravity, what actually happens at black hole horizons and singularities, and why Hawking radiation leads to the black hole information paradox and holography. Carroll outlines why he’s a realist about objective reality and a naturalist about mind, critical of panpsychism and simulation hype, yet open to quantum mechanics itself one day being superseded. The conversation broadens to the Fermi paradox, the rarity of intelligent civilizations, AI and large language models, the emergence of complexity, and Carroll’s own research, books, and philosophy of science.

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