I would keep in mind that IQ differentials involving increased cranial capacity are more likely to have metabolic costs than ones that don’t. It also seems to me that most of the pressure against higher IQs is going to be cognitive rather than metabolic.
I would keep in mind that IQ differentials involving increased cranial capacity are more likely to have metabolic costs than ones that don’t. It also seems to me that most of the pressure against higher IQs is going to be cognitive rather than metabolic.