Tech is not something where your views and experiences of the world matter.

You couldn't be more wrong on this account IMO. It's tempting to think of invention and technological progress as these purely intellectual pursuits, where unsullied Reason devours cold, hard Facts to produce something new and wonderful. But the reality is much less glamorous, and much more human. And the paths we take in our lives definitely affect the ideas that we may have, and how well we are able to express them so that others will want to make them reality.

For example, a couple of years ago in uni we had to do a group project in designing a product to address a humanitarian issue. A friend of mine -- Chinese boy -- was in a group whose task was to tackle the light poverty problem. And boy was he well suited for the task. My buddy came from a very poor family, where he would get the only source of light in the house so he could do his homework in the evenings. Everyone in his group said that having a person who has been personally affected by the problem they sought to address really helped them get the right kind of perspectives.

And that's just it -- perspectives are enormously important in technology! I study nanomaterials, and let me tell you that who presents some idea to you, and how they go about it can either bring about deep insight or utter confusion. I'm lectured by a man who's a big name in nanomaterials and owns a successful company in the field. But he just doesn't have the perspective necessary to teach his subject well. Now, I don't know that a female lecturer in nanomaterials would necessarily be better at this. But then again I'm not going to find out because there isn't one, at least not in my school.

Simple ideas can be explained in only so many ways, but once you get to the really complex stuff things get fuzzy. Which is why having a more diverse tech sector is really necessary -- it is how we can allow more interpretations of problems to reach more open minds and hopefully create more innovation.

And as to your comment about male teachers and psychologists -- I agree that we need more of them. I just don't see how this invalidates the need for more women in tech.