[chiefalchemist]

Perhaps. But I don't feel they're saying "in theory". They're saying we've already seen that XX and XY recover differently, and this is simply another example of something we already know.

Sure a link or two might have helped. But there is value in pointing out "no new news here" if that provides context.

[rottencupcakes]

Your usage of XX and XY has my interest piqued.

Does that shorthand save typing over man and woman or male and female?

Or is the goal separating phenotype from genotype and being scientifically and politically clear what the discussion is about?

[chiefalchemist]

It's intended to speak to the biological and not "gender".