For instance, in its June 2015 workforce demographics report, Google revealed that only 18% of its tech employees are women. Similarly, in its own June 2015 diversity report, Facebook revealed that only 16% of its tech workforce consisted of women. What I wonder is — shouldn’t these numbers be at least a little bit closer to the 30.3% at Stanford?

You raise a valid point and offer research not seen elsewhere. But wouldn’t it be more accurate to say that the gender balance in Silicon Valley should follow an aggregate of graduates over a period of years, and not simply this year’s students?