Comments by "" (@TheDavidlloydjones) on "What has changed one month on from George Floyd's death?" video.
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@tpower1912
You're not totally out of contact with reality. There were mega-fauna in the north until very recently, so don't exaggerate the consideration you give to the few left in Africa.
On the evolutionary value of intellectual thought, you are assuming ver-ree fast evolution among different human families and, I think, attaching too much importance to it as a factor in continued breeding ability, Darwinian "fitness."
We have only been Our Of Africa for about 100,000 years now. Skin and hair colour can certainly change in that time, and lactose tolerance seems to have evolved, in the few places where it has, in only about 40,000 years flat. Frontal cortex size has reduced greatly since the mid-stone age, which is barely longer. Intelect on the other hand? I don't see much difference between the walls of the cave of Lascaux and the MOMA, the jewellery of Northern France 60,000 (sixty!) years ago and the stuff at art fairs today, nor between the fighting arts of bands of apes and the work of Herman Kahn.
Your general rule for looking at African cultural and intellectual achievements today, it seems to me, is that we don't know very much about it. The astonishing overlap between ability in abstract mathematics and that in music has been noted but not explored. We do, however, have some blunt findings: most of the race's genetic diversity is still in Africa: most of us around the planet are descended from a very few. The tallest and the shortest are in Africa. So are the fastest. It's safe to say that the stupidest are at the lower bound, probably in the hills of Alabama, because the lowest IQ below which anyone can survive is roughly the same everywhere -- but lower where there is social Security.
To the extent that general intelligence is physiological, which is somewhat, I'd think you'd go looking at the highest where the extremes are all found.
Cheers,
-dlj.
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