Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas
303 | AMA | February 2025
Sean Carroll
It's a little bit tricky because even in the standard model of particle physics, baryon number is not conserved. B minus L, baryon number minus lepton number is conserved. So if that quantity is exactly zero, it stays zero. But you can still create or destroy individual baryons. And in fact, we also think that gravity does not conserve baryon number at all.
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