Cousin E pointed out something odd about the International Mathematical Olympiad. It’s an annual competition for high school students. And girls do super poorly in it. We ran some stats on the data for 2015 and 2016, and found that a national team with a female member gets less than half the median points per capita of an all-male team.
The question I want to address is not whether women are in empirical fact worse at maths than men. Nor do I, if this is the case, want to discuss whether it’s because of nature or nurture. I want to understand how the IMO works. Look at this.