Lex Fridman Podcast
#403 – Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events
Lisa Randall
So that piece of the puzzle has also been completed. We also know that there are kind of a weird array of masses of elementary particles. There's not just the up and down quark, but there are heavier versions of the up and down quark, charm and strange, top and bottom. There's not just the electron, there's a muon and a tau.
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