Can biological theories explain Rolex watches in addition to peacock's tails?
As humans, we do many things which are not instrumentally useful in an evolutionary sense: we dance, get drunk, create art, listen to music, and dress up in expensive clothing, amongst other things. These exhibitions of "useless" behaviours cannot be accounted for simply because we are reported to be in an evolutionary disequilibrium (Kirk et al, 2001); even our ancestors exhibited many of these "useless" behaviours...
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