Why is the Average IQ of Ashkenazi Jews So High?

https://zerocontradictions.net/civilization/ashkenazi-jewish-IQ

echelons on Babylonian society, in business enterprises, in the scholastic world, in court circles. They became leaders in commerce, men of learning, advisors to kings.” In
This article states possible explanations for why the Ashkenazi Jews have the highest average IQs of any ethnicity in the world.

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