"Contrary to the implications of the open letter, I have never actually done any original research on racial or population differences in intelligence. The only contribution I have made to this area of study is a research ethics paper arguing that “it cannot simply be taken for granted that, when in doubt, stifling debate around taboo topics is the ethical thing to do”. While this paper does not claim that genes do contribute to group differences in intelligence, it does entertain the possibility that they could contribute to such differences."