[lindseybieda]

There's a lot of factors retarding the balance. There's been a number of studies on it.

There's the stereotype threat and the common notion that women are bad a math. There's been a number of sexist comments and incidents within the field (http://geekfeminism.wikia.com/wiki/Timeline_of_incidents). There's even a study the correlates geek culture with keeping women out.

There's this thing called the patriarchy, you mighta heard of it. It's not something as clear as the things above, esp. if you have become comfortable within the system. However, it is there. There's subtle unconscious biases from both men and women inside the field (as observed in this study http://www.pnas.org/content/109/41/16474.abstract).

Is that enough to convince you? Or do you need more, because there really is an abundance of data to support this.