This further confirms what I have theorized about the difference between African cultures versus white western cultures. In western cultures when printing became commonplace schools also became common place. People with education did better, had more children, and advanced in society. Poor uneducated people did worse, died younger and had less chance of their kids growing up to have families of their own. The culture drove genetics into a smarter people. Jews have for centuries valued reading and writing, and abstract thought. To even have standing in a community you had to pass Bar Mitzva which means you had to read and write and pass tests. Also, having children was a moral obligation. So educated people had more children and did better in society. Also, European nations had to plan not just on a national level but on a family level to survive. Those who didn't or couldn't be bothered to think about the coming winter starved out of existence. To simplify my theory it's this: Culture drives genetics. Culture is partly shaped by outside forces as well as genetics. Then genetics drives culture. The two are linked back and forth by cause and effect with social Darwinism. Survival of the fittest. You can hate it, call it racist, what ever, but you can't escape it. Then modern liberal thought wants to make equal what can never be equal. They want to make equal rights into some sort of upside down logic that demands equal outcome.