By playing, you agree to uListen's Terms and Privacy Policy and YouTube's Terms of Service.
Lex Fridman PodcastLisa Randall: Dark Matter, Theoretical Physics, and Extinction Events | Lex Fridman Podcast #403
Summaries, chapters, transcripts, and FAQs on this page are made by uListen, not YouTube.
Episode Details
EPISODE INFO
- Released
- December 3, 2023
- Duration
- 59m
- Channel
- Lex Fridman Podcast
- Watch on YouTube
- ▶ Open ↗
EPISODE DESCRIPTION
Lisa Randall is a theoretical physicist at Harvard. Please support this podcast by checking out our sponsors:
- Babbel: https://babbel.com/lexpod and use code Lexpod to get 55% off
- Notion: https://notion.com
- SimpliSafe: https://simplisafe.com/lex to get free security camera plus 20% off
- LMNT: https://drinkLMNT.com/lex to get free sample pack
- InsideTracker: https://insidetracker.com/lex to get 20% off
TRANSCRIPT: https://lexfridman.com/lisa-randall-transcript EPISODE LINKS: Lisa's Twitter: https://twitter.com/lirarandall Lisa's Instagram: https://instagram.com/proflisarandall Lisa's Website: https://www.physics.harvard.edu/people/facpages/randall Books: Dark Matter and the Dinosaurs: https://amzn.to/417cKZJ Knocking on Heaven's Door: https://amzn.to/3R4LjLC Warped Passages: https://amzn.to/49Xcr85 Higgs Discovery: https://amzn.to/4a6sfWe 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 0:24 - Dark matter 19:16 - Extinction events 30:16 - Particle physics 45:30 - Physics vs mathematics SOCIAL:
- Twitter: https://twitter.com/lexfridman
- LinkedIn: https://www.linkedin.com/in/lexfridman
- Facebook: https://www.facebook.com/lexfridman
- Instagram: https://www.instagram.com/lexfridman
- Medium: https://medium.com/@lexfridman
- Reddit: https://reddit.com/r/lexfridman
- Support on Patreon: https://www.patreon.com/lexfridman
SPEAKERS
Lex Fridman
hostLisa Randall
guest
EPISODE SUMMARY
In this episode of Lex Fridman Podcast, featuring Lex Fridman and Lisa Randall, Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events | Lex Fridman Podcast #403 explores Lisa Randall on Dark Matter, Dinosaurs, and Humanity’s Fragile Future Lisa Randall and Lex Fridman explore what dark matter is, how we know it exists despite being invisible, and its critical role in galaxy formation. Randall discusses her speculative idea that a thin dark matter disk might perturb the Oort cloud and contribute to extinction events like the dinosaurs’ demise, using it to illustrate the deep interconnectedness of cosmic and terrestrial history. They broaden the conversation to the Standard Model, the Large Hadron Collider, extra dimensions, and the limits of scientific knowledge, including top‑down vs bottom‑up approaches. The discussion closes with reflections on existential risks (nuclear weapons, AI, pandemics), the social role of big science, and advice for young scientists about balancing conviction with constant self‑questioning.
RELATED EPISODES
