>>11157061It seems that bigger cerebral cortex gives you more capacity for crystallized intelligence and sensory preprocessing, but at the cost of fluid intelligence. Whoch means, having a bigger cerebral cortex allows you to absorb cultural knowledge better and faster, but it is an impediment when this cultural knowledge fails you. It seems our cerebral cortex size peaked about thirty thousand years ago and started getting smaller to compensate for this effect since then, while our cerebellums keep getting bigger.
