What comes to my female mind when thinking about Science Fiction, I think of my mother watching Star Trek and the movie Back to the Future where the dad writes Science Fiction novels. Then I think of how most girls I know don't usually care for science and fiction in the same sentence, let alone movies. But I was told when I was younger that I wasn't good at math; and, if I couldn't do math, I shouldn't try science. So maybe post #6 is right to a point about females not having a chance in scientific fields but also because they weren't motivated or encouraged to develop scientific skills. I've seen a major push recently for educators to encourage more girls into math and science, so maybe we'll see a boom in this area of literature for women.