Because I enjoy watching you squirm
Speculation built on speculation built on speculation. I wonder what results they would get if they changed the instrument to something less "cool," like a tuba or accordion. It would probably be less amenable to Kanazawa-esque pronouncements.
So, people old enough to do shit, but not old enough to realise shit is a bad idea, do more shit? Shocker.
Huh?
That just seems to be what the article is saying. That the young, but not too young, do things. I just don't quite see how that comes back to sexual selection....
Oh, I was referring to the title -- the idea that (art/science/civilization/whatever) is the product of dudes trying to get laid. It's sexual selection taken to ridiculous extremes. (You have to read further into the series to get to that part, I guess.)