I find that angle very sympathetic, but it isn't clear to me at the moment if those people lack potential altogether; or, whether there are cognitive factors (e

I find that angle very sympathetic, but it isn't clear to me at the moment if those people lack potential altogether; or, whether there are cognitive factors (e.g pertaining to education) which suppress that potential. If we could find the neurological basis for that potential, we could determine whether some people just don't engage it, or whether they lack it altogether and are therefore hopeless cattle. That basis might be the large size of the human pre-frontal cortex, which is shared by all healthy humans, so this is why I'm reluctant to dismiss the lack of potential.