If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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You can't do things in cosmology like "rerun the tape of the universe" either.
Sure, but I think it's reasonable to say that humans are ill-behaved as experimental subjects compared to other biological organisms, which are ill-behaved compared to particles, stars and galaxies.
I mean ill-behaved in the sense that their behaviors cannot be reliably modeled by compact mathematical models.