We have a bunch of twin studies that say your biological parents have far more impact on your intellect than your adopted parents. We know there are upper midd

We have a bunch of twin studies that say your biological parents have far more impact on your intellect than your adopted parents. We know there are upper middle class all over the world, and almost half the Manhattan project came from the same neighborhood and ethnicity. It would be amazing if we find out that one weird trick that increases your intellect by 2 standard deviations. But most likely it's just Ashekanazi have lots of smart genes.