Regarding the target, we assign four basic components of natural selection--variation, population constraints, differential reproduction
, and heredity--as the conceptual target.
However, we must contemplate the possibility that other cultural traits, for example popular music, reading habits and sexual mores, have been trending towards the preferences of the less educated sections of the population in the recent past, and that such trends have been driven to some extent by differential reproduction
favoring the less educated.
Therefore, over eons, the process of differential reproduction
over millions of generations will eventually result in the survival of those species whose brains are increasingly so adapted.
there was no differential reproduction
One of the best submitted ten-word summaries of the work of Charles Darwin is: "Heritable variation, differential reproduction
, and time yields modified descent, naturally.