Also, the existence of differences between men and women doesn’t necessarily mean they can’t be changed in the future, even some biological ones. How much of what we’ve inherited – biologically, psychologically or socially – is outdated and malleable?  

There are factors other than sexism or discrimination that could in part explain why Google does not have 50 percent female representation. There are differences between men and women on average, based on population level statistics. (He qualifies this by noting a number of these differences are small and there is significant overlap between the genders.) These differences may in part explain the gender gap in tech. Women and men may differ partly because of biological reasons.