Maybe you have heard that the Celts — Scots, Irish and “Welsh — were all no more than five feet tall in their native estate. Now, it’s commonplace to see very tall and large Celtic-descended people, because they have prospered here with good nutrition since the mid-1800s, and some a century before that. Slave-descendents of African origin, on the other hand, did not achieve full civil rights until about 60 years ago. I see no reason why members of their group cannot also begin to increase in health and intelligence if they can change behaviors to achieve middle-class habits and nutrition.”
I wish them luck. Why wouldn’t every race have increasing IQs over time?
Small stature Asians, for instance?
Huh? Only if the smart ones had more offspring. Wealthy societies almost always do just the opposite.