Elaborate family trees of the races of humanity have been drawn from genetic
evidence. There are no uncontroversial claims about intellectual differences
between branches of the tree, either in IQ or in specific mental abilities.
Yet it seems unlikely that the brain, a structure specified by 30,000 genes,
could be unchanged since Homo sapiens radiated. Perhaps random variation
swamps any systematic variation. We don’t know.
Why are we ignorant? Watch Lysenko smile.
copyright 1992, 2023 Jay J.P. Scott
<jay@satirist.org>