My wife is a lot better at maths than I am:). She was top of her high school at maths, and often had to listen to the teachers scolding the boys for letting a girl beat them. So she developed a particular dislike for the idea that boys are naturally better at those kind of things. I know that's not what you were arguing in your article, but those are her associations on this topic anyway. I also would like to know just what sex differences really exist, looking forward to the next article