[seanmcdirmid]

If the supply of qualified female candidates ready to be hired now is thought to be restricted (so that the bar must be lowered), that does not imply the same thought about the capabilities of women. The problem with diversity could be thought to be in the talent pipeline: young girls wanting to be programmers, gaining interest and experience in high school, going to college to study computer science, staying the field to reach higher levels, and so on.

In fact, we find that the field was way more diverse before the 1990s, and the talent pipeline for female programmers only started choking in the late 80s (for reasons we could argue, but one popular theory involves boy-oriented PCs and video games).