SLS (Space Launch System) uses a 50 year old rocket engine design that now costs $145 million each (not including labor and testing) which is over 300 times more expensive than the more powerful SpaceX Raptor 3 engine. It is a flying museum piece that is using difficult liquid hydrogen which was the reason for ... Read more
Detailed Summary of Lex Fridman Podcast: AI State-of-the-Art 2026 with Nathan Lambert and Sebastian RaschkaThis episode (YouTube: https://www.youtube.com/watch?v=EV7WhVT270Q, released around early 2026) features Lex Fridman interviewing Nathan Lambert (post-training lead at Allen Institute for AI, author of The RLHF Book) and Sebastian Raschka (author of Build a Large Language Model (From Scratch) and Build a ... Read more