If you ask women who work in tech, and if they feel comfortable telling you the truth, many of them will respectfully disagree with you. Just because you do not perceive bias or discrimination does not mean it is not there. I was recently at a women's event at the Southern California Linux Expo and everybody had a story to tell. I am glad Hacker School is explicitly trying to be welcoming, because I'm sure there are talented women out there sitting on the fence about whether they are "good enough" to take a leap of faith and do something like this.
As I mentioned, and I think others have as well in other threads, this seems more like a USA thing. And I would say some of them were comfortable telling me the truth as some of them in college I was dating. In the work place I never dated any, but was close friends with some and never heard a complain. Actually, thinking about it, while the ratio is skewed in the programming front, where I worked, there was a tendency (albeit small) for women to be more represented in higher level positions. Heck, I just accepted a job leading a team at a startup where all programmers are men, but both C level executive are women.
