The studies I've looked at for 1. aren't convincing. If you have any in mind and want to share, I might take a look, because I find the topic mildly interesting

The studies I've looked at for 1. aren't convincing. If you have any in mind and want to share, I might take a look, because I find the topic mildly interesting. 2. and 3. can be explained by structural issues, as I said. It's not really a question of the distribution of capabilities in men and women today which interests me the most, but the potential malleability of those capabilities given the right social structures, because if there's a way to bring a larger fraction of the population into STEM work, we'll have a much more creative and prosperous society.