Lex Fridman Podcast

#468 – Janna Levin: Black Holes, Wormholes, Aliens, Paradoxes & Extra Dimensions

Dienstag, 6. Mai 2025 · 3 h 07

MP3

Shownotes

Janna Levin is a theoretical physicist and cosmologist specializing in black holes, cosmology of extra dimensions, topology of the universe, and gravitational waves.

Thank you for listening ❤ Check out our sponsors: lexfridman.com/sponsors/ep468-sc

See below for timestamps, transcript, and to give feedback, submit questions, contact Lex, etc.

Transcript:

lexfridman.com/janna-levin-transcript

CONTACT LEX:

Feedback – give feedback to Lex: lexfridman.com/survey

AMA – submit questions, videos or call-in: lexfridman.com/ama

Hiring – join our team: lexfridman.com/hiring

Other – other ways to get in touch: lexfridman.com/contact

EPISODE LINKS:

Janna’s X: x.com/JannaLevin

Janna’s Website: jannalevin.com

Janna’s Instagram: instagram.com/jannalevin

Janna’s Substack: substack.com/@jannalevin

Black Hole Survival Guide (book): amzn.to/3YkJzT5

Black Hole Blues (book): amzn.to/42Nw7IE

How the Universe Got Its Spots (book): amzn.to/4m5De8k

A Madman Dreams of Turing Machines (book): amzn.to/3GGakvd

SPONSORS:

To support this podcast, check out our sponsors & get discounts:

Brain.fm: Music for focus.

Go to brain.fm/lex (lexfridman.com/s/brainfm-ep468-sc)

BetterHelp: Online therapy and counseling.

Go to betterhelp.com/lex (lexfridman.com/s/betterhelp-ep468-sc)

NetSuite: Business management software.

Go to netsuite.com/lex (lexfridman.com/s/netsuite-ep468-sc)

Shopify: Sell stuff online.

Go to shopify.com/lex (lexfridman.com/s/shopify-ep468-sc)

AG1: All-in-one daily nutrition drink.

Go to drinkag1.com/lex (lexfridman.com/s/ag1-ep468-sc)

OUTLINE:

() – Introduction

() – Sponsors, Comments, and Reflections

() – Black holes

() – Formation of black holes

() – Oppenheimer and the Atomic Bomb

() – Inside the black hole

() – Supermassive black holes

() – Physics of spacetime

() – General relativity

() – Gravity

() – Information paradox

() – Fuzzballs & soft hair

() – ER = EPR

() – Firewall

() – Extra dimensions

() – Aliens

() – Wormholes

() – Dark matter and dark energy

() – Gravitational waves

() – Alan Turing and Kurt Godel

() – Grigori Perelman, Andrew Wiles, and Terence Tao

() – Art and science

() – The biggest mystery

PODCAST LINKS:

– Podcast Website: lexfridman.com/podcast

– Apple Podcasts: apple.co/2lwqZIr

– Spotify: open.spotify.com/episode/3KSOxrjalScxHFQF9u8M46

– RSS: lexfridman.com/feed/podcast

– Podcast Playlist: youtube.com/playlist?list=PLrAXtmErZgOdP_8Gzts…

– Clips Channel: youtube.com/lexclips

0:00 / 0:00