I'd be much more interested in a presentation that takes the following tack: we know that some professions are mostly male, some mostly female, and some a mix.

I'd be much more interested in a presentation that takes the following tack: we know that some professions are mostly male, some mostly female, and some a mix. Lets pick a bunch of careers from each category. Can we find any common characteristics in those three groups? Can we form a model based on that with predictive power - one that lets us say "based on what we know, we predict that X% of radiologists will be female" and be reasonably accurate? That would be much more useful than the constant "men are better at math" vs "no they're not!" argument. And if there were interesting findings, someone else could try to determine how much of the difference was social or biological.