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replied · 14d
I miss some numbers to back some claims. It's almost a popular belief that idiots have more children, but I don't know if that's a fact.
replied · 14d
It's true that underdeveloped countries have higher fertility rates and theses countries have low educational standards. But as economy grows, fertility decreases.
replied · 14d
I guess I get what he is saying, but right off the bat:

"Big brains and intelligence need large amounts of calories" ... ?

Is there any evidence to back this? Google says it's false.
replied · 14d
Caloric intake effects blood flow and the ability to sustain thought, but *intelligence* is a particular ordering of synapses with only ancillary correlation to brain size/bloodflow.
replied · 14d
Yes, and my understanding has always been that the popular belief that intelligence directly correlates with brain size is, at best, unproven.
replied · 14d
I've heard surface area (reticulation) is a bigger indicator than overall mass. But all are downstream of how it's been constructed, from the inside, over time.