I don't really believe in your jewish superiority hypothesis, I found an interesting wikipedia article though. https://en.wikipedia.org/wiki/Ashkenazi_Jewish_intelligence I might have another explanation. But first of all genetics does not work the same speed as you think. A few thousand years does not matter at all unless a very high percent of the population is wiped out by a disease like the black death. Genetic diseases are common amongst closed groups like you mentioned, where they marry almost exclusively with each other. I think a jewish diaspora rooted back to the time of the Roman Empire is something like that. Even if they have genetically higher IQ, which I doubt, I don't think... (read more)
I don't really believe in your jewish superiority hypothesis, I found an interesting wikipedia article though. https://en.wikipedia.org/wiki/Ashkenazi_Jewish_intelligence I might have another explanation. But first of all genetics does not work the same speed as you think. A few thousand years does not matter at all unless a very high percent of the population is wiped out by a disease like the black death. Genetic diseases are common amongst closed groups like you mentioned, where they marry almost exclusively with each other. I think a jewish diaspora rooted back to the time of the Roman Empire is something like that. Even if they have genetically higher IQ, which I doubt, I don't think... (read more)