It is impossible to draw a clear line between races, but it is also impossible to draw a clear line between colors of the visual spectrum, and yet “red” and “blue” exist. For a non-IQ related example, people of Ashkenazim heritage are known to be at risk for certain genetic issues, while people of African heritage are known to be exposed to heart-related risks.
The concept of race (or any other word that symbolizes this concept) is statistically significant and useful—more so in countries that are much more homogeneous than the USA.
I’ve been looking for about a decade now, but have not encountered evidence that would discredit Lynn. I have however seen a lot of evidence which corroborates his findings.
If you have evidence that discredits his work, I would appreciate it.
Why stop at Africa then? Shouldn’t we invest billions in animal shelters, so that dogs and cats can live long lives until we find a way to bypass their genetic disadvantage? Wouldn’t those be just as “massive benefits”?
Perhaps it came across as smugness, but I do find that every piece of news I see, either from South Africa, or from Haiti, or from Nigeria, or from Zimbabwe, or from Turks and Caicos, just adds to the pile of evidence.
Also, I myself live in a place like that. Which is why I suggest (in all seriousness!) that people should consider visiting a country like South Africa for a while.
There’s no better cure for academic distance than direct contact with the hard facts on the ground.