[Note for the hard of thinking: this message is NOT intended to argue either for or against the idea that the preference/ability distribution curves for women and men in software engineering are not identical.]
I agree it’s very frustrating when two people look at the same document and draw different conclusions. Let’s agree to reference this PDF so we all have the same page 3:
Having agreed that, is the section you are referencing to on page 3 of that doc? Can you quote it exactly so we know what we are discussing? Like oldgeek, I cannot see where he said that the female employees around him at Google are not biologically as capable of doing good work as the men around him.
It will not do to support that assertion by quoting statements he made about populations. You need to show where he said that about individuals. Because that’s the entire point. “Many of these differences are small and there’s significant overlap between men and women so you can’t say anything about an individual given these population level distributions.” In other words, even if women have a stronger preference than men to be, say, nurses or primary school teachers, that does not say anything about the abilities of any particular man who is a nurse or a primary school teacher, compared to any particular woman.
I would expect it to be true that any women in a software engineering position at Google is highly competent at their job. Google’s recruitment process does not suck. However, by the laws of logic, that statement can be true at the same time as the statement “The preference/ability distribution curves for women and men in software engineering are not identical.” (That latter statement may be true or false; my point is not to get into an argument about which it is, my point is to argue that its truth or falsity or indeterminateness is independent of the truth that the female software engineers who are employed at Google are all highly competent.)
In other words, the fact that he believes that there is some degree of gender-based preference difference or ability difference does not automatically mean he believes that all women working as software engineers are idiots. And I’m depressed for the state of humanity that the Internet cannot see the massive logical flaw in jumping to the conclusion that he does.