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Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

AMA | October 2024

5974.166 - 5996.822 Sean Carroll

There's some partial symmetries that are like approximately good but not perfectly good. There are three generations of fermions, but why not four? Why not two? And you can go on and on. And it just seems arbitrary and kind of— ad hoc, and that feeds into something, the feeling that we get that it's kind of ugly. Also, it's kind of long.

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