I was recently commenting that music and dance are useless, as compared to shooting or driving or massage or similar.
But honestly, the maximally useless hobby is sports. It only satisfies desire for ape tribe 1 to beat tribe 2.
If your tribe is stuck in the woods, being an expert at football or basketball is not going to help you get out. I don't think the muscle memory (of ankles and wrists) transfers that strongly from one skill to another, although it does transfer somewhat.
Update - I take this back. I am incorrect. The muscle memory does in fact transfer atleast somewhat.
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