Here's some food for thought:
http://www.newyorkmetro.com/nymetro/...features/1478/
Are Jews Smarter?
Did Jewish intelligence evolve in tandem with Jewish diseases as a result of discrimination in the ghettos of medieval Europe? That’s the premise of a controversial new study that has some preening and others plotzing. What genetic science can tell us—and what it can’t.
Here's my favorite quote in the article: “I’d actually call the study bull*****,” says Sander Gilman, a historian at Emory University, “if I didn’t feel its idea were so insulting.”