I agree on the point that on average there may be some differences between genders when it comes to mental capabilities. That said the range that it varies from may be quite large for both genders and there is plenty of overlap to it might be quite small and their is little overlap. Even when phrasing this as a question when it comes to populations there is lots of wiggle-room depending on how the data plays out.
Oh, yeah. Even differences in standard deviation, for instance, might be more important than differences in average. And it's not just a matter of mental capabilities, but also in interests and desires.
