A couple of months ago, James Watson – who, together with Francis Crick, was awarded the Nobel Prize for deciphering the double helix structure of DNA – claimed that black people are less intelligent that white He invoked the authority of science to make his claim. Of course, if the claim had simply been that on average (say) African-Americans had lower scores on IQ tests than White Americans (and that this difference was reflected in educational achievement and other socioeconomic indicators), Watson would simply have been citing facts. The controversial part of Watson’s claim was that the difference was rooted in the genes of blacks and whites and therefore fixed. The first part of the claim is (probably) false – the genetic differences between blacks and white are largely skin deep. But even were it true it would be irrelevant to the real question. Watson calls himself ‘gloomy about the prospect of Africa’, because he thinks that ‘genetic’ means ‘fixed’. But ‘genetic’ does not mean ‘fixed’; the fact that the differences between two individuals are explained by differences in their genes has no implications whatsoever about how hard or easy it is to eliminate the difference. Differences rooted in environmental factors (to the –limited – extent to which it even makes sense to separate environmental factors from genetic) may be easier to eliminate than those rooted in the genes, or they may be harder. Genes work like sets of switches, under the control of other genes and environmental factors. These sets can be configured differently to produce very different results; changing a few triggers thereby produces very different products from much the same genes. In any case, the evidence strongly suggests that this particular IQ deficit is remediable.
Read More »Race, IQ and James Watson
