Black woman single cos the black men are in jail - would you marry outside your race?

[Lemur]

evolution would predict, and tests confirm, that intelligence is unevenly distributed across the globe.

A difficulty I have with this line of reasoning: How are we defining intelligence? 'Cause when I consider all of the myriad ways a human being may be intelligent, I get a little dizzy. Musical intelligence? Numerical math? How about somebody who is terrible at basic math but excels at more abstract formulations, as with Einstein? What about literary smarts? Engineering smarts? Practical smarts? How do we classify a woman who excels at chemistry but sucks at most other forms of science? What about a guy who's whip-smart about history and an idiot about all hard sciences?

I have a brother-in-law who is a master plumber (that's an actual rank you can earn in the U.S.A.). You can't really talk to the guy, he reads nothing, he's borderline illiterate, but he's a genius with machinery. How do we quantify him? Is he stupid because he wouldn't perform well on an IQ test? Do we disregard his personal, lucrative area of genius?

Anyway. I find all "measurements" of intelligence a little dodgy, and the conclusions drawn thereof even dodgier.