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Originally Posted by sapiens
Differences in Ashnekazi Jews and other groups in intelligence (as measured by the WAIS or some other standard IQ measure) could have a heritable component entirely independent of the adaptationist explanation you suggest above. It could just be a founder effect/genetic drift.
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True, it could be a fluke effect of drift - until such time as the genes responsible for higher IQ in that population are pinned down and dated we cannot say for sure.
Still, I think given other aspects of how various populations test in IQ - even people raised together in the same socio-economic environments yet who have dissimilar ancestries - does lend credence to the concept of certain populations have an
average greater ability in some mental areas than other populations, although with considerable overlap. It would be bizarre to think the human mind is immune to evolutionary forces when every other visible and readily testable aspect of our being has so obviously been shaped by evolutionary adaptation over realtively short periods of time.