Of course I was using shorthand. The point wasn't to paint an accurate picture of the biology of sex selection, but to point out the reason for having a "women

Of course I was using shorthand. The point wasn't to paint an accurate picture of the biology of sex selection, but to point out the reason for having a "women's" class: that, on the whole, men have biological advantages in physical activities, and that for most sports, not having a women's class would effectively mean excluding women from competitive versions of that sport entirely. Obviously somewhat less so in ultramarathons than say, sprints or weightlifting; and it's obviously more complicated when you're talking about the top 50 people out of 7 billion, rather than the top 50 people out of a few thousand, or even a few hundred thousand.