> We have a very similar "intelligence and nature-vs-nurture" situation in biology, caused by the very same thing
no we don't. intelligence isn't racial..
IQ differences between the racial groups is one of the most, if not the most, replicated findings in psychology.
Suggesting that intelligence might be (partially) inheritable always causes backlash.
> intelligence isn't racial..
The same way as South-Koreans are by now taller than North-Koreans (because of material reasons) we could posit that "intelligence", i.e. the "workings" of our brain, can be distributed in a non-uniform manner across humankind, depending on the "local" material conditions.
And this is not about "race", because according to those that do believe in the "race" stuff both North-Koreans and South-Koreans are part of the same "race", it is about those material conditions that I've mentioned and which, in the end, by necessity end up modifying things in our (very material) brains, and hence in our "intelligence". Believing otherwise, meaning believing that are our brains are not affected by the material conditions under which we live our day-to-day lives, would be preposterous.
If genetics had no impact whatsoever then great apes would have the same intelligence potential as humans, as human races are more diverse then you give them credit for.
The impact of it's culture and behavioral like inbreeding being acceptable probably plays a bigger role though, but denying genetic impact is just putting your head in the sand because you cannot face reality not being equal. Which it ain't. It's also almost certainly a range, with most of the curves overlapping. If studied, I'd expect there to be a measurable impact in the rates of high intelligence individuals with the median intelligence being pretty close across all groups, but obliviously just my personal experience from interacting with people.
I say intelligence is ideas, so it isn't physiological* and doesn't have a quotient.
* except in that being beaten around the head can make a person stupid.
Every study that's been done shows a significant difference in mean IQ across races. Suggesting otherwise is anti-science, putting ideology over reality. That doesn't mean everyone of any particular race is stupid; Indians in America for instance on average have higher IQS than white Americans, in spite of the average IQ of India being significantly lower, because only the smarter Indians manage to immigrate to America.
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>intelligence isn't racial
And how do we know that? Any very controversial stuff like this will have people on both sides doing all in their power to convince everyone to their point of view. The truth gets lost.
To discuss this objectively we have to first agree on some basics. First I think the concept of race is a bit outdated. People have phenotypes and these phenotypes have various features (one may be skin color).
Also where did the idea there exists one feature responsible for "intelligence" came from? It seems to be accepted apriori, but I think the truth is closer to humans (and animals and AI) having various types of intelligence. Social, emotional, linguistical, math like, spatial (ability to imagine shapes etc) and probably few more.
And those intelligence types may very well have a genetic component and be present in one phenotype in a different mix than another.
But saying it is likely vs having actual proof are two different things so my view is that we simply don't know.