A Princeton mathematician says wormholes cannot survive Einstein's equations, and the AI apocalypse is absurd. A solution that vanishes under a small nudge is a ghost, not physics. Sergiu Klainerman is a mathematician at Princeton University. With Demetrios Christodoulou, he proved that empty spacetime is stable. We cover: what makes a solution of Einstein's equations physical, why slowly rotating black holes pass the stability test and wormholes fail it, why shocks form no matter how small the perturbation, whether AI can reproduce a landmark proof, and why he calls the AI singularity absurd. Mathematics is discovered, not invented. Support the show and get the full transcript, bonus content and my Monday M.A.G.I.C. Message: https://briankeating.com/yt Have a .edu email and live in the USA? You automatically win a meteorite: https://BrianKeating.com/edu Subscribe: https://www.youtube.com/DrBrianKeating?sub_confirmation=1 Follow on Spotify: https://spoti.fi/3vpfXok Apple Podcasts: https://apple.co/39UaHlB Support Into the Impossible on Patreon: https://www.patreon.com/drbriankeating Join this channel for perks, monthly Office Hours and your name in the Member Roster: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join Sponsored by me. My three books: Losing the Nobel Prize http://amzn.to/2sa5UpA Think Like a Nobel Prize Winner https://a.co/d/03ezQFu Focus Like a Nobel Prize Winner https://a.co/d/hi50U9U Amazon affiliate disclosure: links above marked to Amazon may earn a commission for the channel at no cost to you. As an Amazon Associate I earn from qualifying purchases. X: https://x.com/BrianKeating Substack: https://briankeating.substack.com Blog: https://briankeating.com/blog Audio-only: https://briankeating.com/podcast