It seems pretty clear that any vague "natural-selection" is being way counteracted by modern dysgenic pressures. Also, note that the "so-called" "modern natural selection" is wholly unnatural/anti-Palaeo. For example, they claim that modern natural selection generally removes the extremes. The whole point of the Palaeolithic era was that the small tribes and constant mass infanticide/eugenics meant that extremes(such as larger brains/heads) were able to feature more prominently in the human tribes this speeding up human evolution.