Effective altruism is based on the core belief that all people count equally. We unequivocally condemn Nick Bostrom’s recklessly flawed and reprehensible words. We reject this unacceptable racist language, and the callous discussion of ideas that can and have harmed Black people. It is fundamentally inconsistent with our mission of building an inclusive and welcoming community.
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There is no such consensus, though. Your links do not support your very strong claim.
E.g. Vox:
This does not allow to claim consensus, and the way it's worded is obviously motivated by the desire to downplay the belief of experts in causal role of genetics. We have a newer survey they do not mention, too, Survey of Expert Opinion on Intelligence: Causes of International Differences in Cognitive Ability Tests, Rindermann, 2016:
If anything, the consensus seems to be that genes play some role here.
I do not see why this hypothetical is impressive? The best that could be said for it is that it is logically sound and novel. But heritability and norms of reaction impose limits on such explanations. If X percent of a trait's variance can be explained by a factor, then there's only so much you can get by changing the sum of non-X factors. Adult intelligence has roughly 80% heritability (equally within white and black populations; actually this alone invalidates the idea). For 1 d of difference in intelligence to be explained away by the environment, the gap in environmental quality must be 2.24 d. This is implausibly large for intra-national racial differences, contradicted by direct measures of environmental quality and indirect proxies of deprivation (such as stress and self-esteem), made suspect by the fact that there's been a great deal of improvement in race relations and equalization of living standards since the 60s, yet no large narrowing of the IQ gap; and for the case where black people have higher "genotypic IQ", environmental deprivation must be even greater than 2.24 d.