Jan 182014
 

“High IQ test scores of Ashkenazim, along with their unusual pattern of abilities, are a product of natural selection, stemming from their occupation of an unusual social niche. All the required preconditions — low inward gene flow and unusually high reproductive reward for certain cognitive skills, over a long-enough period — did exist. These preconditions are both necessary and sufficient, so such a selective process would almost inevitably have this kind of result.”
Natural History of Ashkenazi Intelligence
http://harpending.humanevo.utah.edu/D…