high IQ of Ashkenazi Jews + persecuted past - a link?

[theapportioner]

I guess I should've written more clearly - what I meant to say is that according to the hypothesis, Africans who were better able to retain salt - and thus water - had a better chance of surviving the journey across the Atlantic. I made a flippant comment about "saltier" Africans, and it didn't occur to me that the "salt" in this case could be misconstrued as sea salt. My bad.