Your primary source is measuring IQ heritability in children, which is typically held as 20-40% rather than the 60-80% for adults I mentioned. Children are in a constant state of flux, and their IQs hard to norm due to maturation rates, but when they hit the late end of puberty you can see the effect of genes really shake out.
In terms of African immigrants I need to look at the actual data more closely but it sounds like a fairly simple case of Brain Drain. The Bantu mean IQ is typically scored in the 70s range, so if we're able to skim the top 0.04% that's a group more than 400,000 strong with a higher average IQ than Ashkenazi Jews. Normal Distributions + Huge Populations = Lots and lots of outliers.
Keep in mind, I'm only maintaining that there is cause for uncertainty. The evidence I provide is not meant to refute your claim - only to reduce what I perceive as your overconfidence and to dispute your claim that any layman could see that you are right, but for their biases. Mine is the weaker claim.
We can keep putting data back and forth, but the very fact that a reasonable argument can be made for either case is my evidence for the claim that uncertainty is warranted.
Look at this from a different perspective; how much evidence of climate change would I have to reject as "just indicative," how many discipline's consensus's would I have to ignore, how much special pleading and goalpost-moving would I have to do before you gave up on reasonable argument and called me a climate kook?
Probably not much, and I'd have the same lack of patience for anyone else doing that whether it's a Creationist arguing against Evolution or a Whole Foods junkie pushing Vitalist nonsense.
Why does the game completely change when it comes to the intersection of psychometry and biology? Doesn't it make you even a little suspicious how unprecedentedly low our priors drop as soon as we hear the word race? Why are the conclusions of more than a century of exhaustive psychometric research, backed up by our recent advances in genetics, still so completely unpersuasive?
I can guess the answer, and I think you can too.
We can keep putting data back and forth, but the very fact that a reasonable argument can be made for either case is my evidence for the claim that uncertainty is warranted.
Look at this from a different perspective; how much evidence of climate change would I have to reject as "just indicative," how many discipline's consensus's would I have to ignore, how much special pleading and goalpost-moving would I have to do before you gave up on reasonable argument and called me a climate kook?
As far as I can tell, the implied analogy here between ...
People want to tell everything instead of telling the best 15 words. They want to learn everything instead of the best 15 words. In this thread, instead post the best 15-words from a book you've read recently (or anything else). It has to stand on its own. It's not a summary, the whole value needs to be contained in those words.
I'll start in the comments below.
(Voted by the Schelling study group as the best exercise of the meeting.)