We have not evolved nearly as far from the apes as we like to think we have. Indeed, one of the most intriguing quesitons about the human species is why our brains ever needed to get as big as they have. For some people that is a sign that we have not yet fully exploited the potential of our brains, but for others it is a sign that they mainly evolved the way they did to accommodate our tremendoues need for social processing (quoting Lieberman, 2018, Social, Why our Brains are Wired to Connect)1. the standard theory is that we evolved from 'ape-like' organisms, not apes per se.
2. our brains didn't 'need' to be any particular size; evolution doesn't work on 'need' but on selectable chemical accidents.
3. for some people the 'potential' of the brain is unused; so most of the potential must be selectively neutral but, as a big energy user, will be selected out over time. Evolution does not and cannot anticipate possible future states, it is a 'looking backwards' mechanism.
4. how did the brains evolve to accomodate a 'need' for social processing which is only done by the brain? Something usually 'accommodates' what is previously there!
In short a bunch of question-begging teleological assertions, that import into materialist evolution some kind of perceptive force that 'guides' it to a sought future.
Completely incoherent nonsense, of course and the usual popular mumbo-jumbo mangling of an already improbable hypothesis.