I wonder if Autism would be even simpler to explain with a cliff-edged fitness function. Because there seems to be a high correlation between extremely intelligent people and people on the spectrum. Maybe the group of genes rewarded for high intelligence/creativity/quantitative ability also, by accidental design, inhibits social capacity.
> Maybe the group of genes rewarded for high intelligence/creativity/quantitative ability also, by accidental design, inhibits social capacity.
Maybe living in a world with neurotypical people who immediately dislike you [0] 'inhibits social capacity' after years of traumatic experiences piling up.