We can easily identify the geographic locations of people's ancestors by looking at them. That means that we evolved quite a few exterior physical traits that are easily grouped and identifiable. Do you really think our brain, which is our most important survival trait, was immune to evolution? That people that moved to specific regions didn't have had selective pressures of some kind on the way we think?
Where this can go awry are the people that learn about this and then think that it's reason to discriminate against individuals or groups - of course it isn't. As you said, genetic diversity within groups is large. And even something like IQ certainly doesn't sum up the worth of someone, or even their brain.
The whole point of what I posted though was just to point out the fact that Wikipedia is, in fact, biased in what's put on there. It wasn't that long ago that it was perfectly OK as an academic to study the racial differences in IQ. Now? Good luck. Wikipedia reflects that.
And: it remains perfectly OK to study racial differences in IQ. It's an actively studied topic. In fact, it's studied by at least three major scientific fields (quantitative psychology, behavioral genetics, and molecular genetics). The idea that you can't is a cringe online racist canard borne out of the fact that the studies aren't coming out the way they want them to.
James Flynn (of the Flynn effect) has also publicly stated that grants for research clarifying genetic vs. environmental causes of IQ gaps weren't approved because of university fears of public furor.
Noah Carl has a sociology doctorate. He doesn't work in the fields that study this; he just tries to launder his way into them.
Flynn is, famously, a race/IQ skeptic.
https://www.theguardian.com/education/2019/may/01/cambridge-...
> for merely arguing that race-IQ research should not be off-limits.
Help me connect the dots here.
Reframed, the study seemed to find (a) black kids are adopted less readily and (b) the longer a kid spends in the foster system, the lower their IQ at 17. (There is also limited controlling for epigenetic factors because we didn’t understand those well in the 1970s and 80s.)
Based on how new human cognition is, and genetically similar human races are, it would be somewhat groundbreaking to find an emergent complex trait like IQ to map to social constructs like race, particularly ones as broad as American white and black. (There is more genetic diversity in single African tribes than in some small European countries. And American whites and blacks are all complex hybridized social categories.)
[1] https://en.wikipedia.org/wiki/Minnesota_Transracial_Adoption...