People seem to focus only on intelligence in these discussions. Does anyone not notice the racial composition of many pro sports teams?
Historically there may be causal reasons for differences in group capabilities. Are there studies, say, of the effects of celibacy in Catholic priests in the middle ages as causes for losing intelligence genes in the affected populations? Could there have been an effect of selecting for less intelligence in capturing slaves in Africa (populations would know there were kidnappers about; not everyone got captured, so why not... (read more)