they've historically had some difficulties to contend with
Funny how that worked out for Jews in Medieval Europe...
So, first of all, if you drew up a list of highly successful people in mediaeval Europe, I don't think there would be many Jews there.
Secondly, I take it you have in mind Cochran's theory that European Jews are super-smart because of evolutionary pressure from mediaeval persecution. But Cochran's story isn't simply "they were persecuted, persecution leads to more brains, the end". It depends crucially on the details of the persecution. And the treatment of black slaves in the US is very different in pretty much every relevant respect from the tre...
Another month, another rationality quotes thread. The rules are: