I call this brain worms trifecta:

Derek Parfit wrestled with the question of the world’s ideal population in an influential 1984 book, Reasons and Persons. He didn’t delve into the carrying capacity of the planet, and he stayed away from the issue of abortion, which occurs after conception and thus raises a different set of concerns.

decorum requires we don't discuss anything vulgar and materialist

first Mozart goes away, then Haydn, etc., until all that’s left is “muzak and potatoes,” no amount of which can compensate for the loss of Mozart. (He should have capitalized Muzak.)

gotta respect those property rights my dude, someone owns Muzak(tm)

The question of the ideal world population size may never be resolved by philosophers. But you don’t have to be a philosopher to think about the lives that never happened.

Please sit with me and think about things that don't exist and feel sad.