“I think that paper looks pretty good,” says Sir John. “We haven’t seen a big problem with blood clots in Latin America, in southeast Asia, and we haven’t seen a lot of blood clots in Africa.
“There is an interesting question over whether there’s a differential liability to blood clots in Northern European Caucasian people in Norway, where they first appeared, as compared to everyone else.”
OK, so it’s some subset of genes prevalent in a population, not actually race. But as it runs out with cystic fibrosis, sickle cell and so on, that concept does actually matter. So too with Vitamin D in high latitudes and so on.
The trick is in working out when such things – as with gender etc – don’t matter and when they do. An adamant insistence – either way, that we must measure by race, or we must not – isn’t a reflection of reality.