Good article in the Guardian
The main points - the science of cognitive differences suggests that insofar as they can be measured at all, they are tiny. There are however, huge cultural barriers in the UK and America in particular. Those cultural barriers appear not to be there elsewhere - e.g. India, Malaysia, where numbers of women in tech are near or surpass 50% - which rather suggests the differences can't be biological. And the model of "supergeek" isn't a good one for engineering in any case. I particularly liked this quote:
Priya Guha, the UK lead of tech incubator RocketSpace and a former UK consul general in San Francisco, argues that, even by its own arguments, Damore’s memo missed the point. “The description of an engineer as somebody who has their head down, focused on developing the next line of code, is the sort of engineer that won’t be adding value,” she says. “We need engineers out there who are both very strong developers, but also people who understand the world around them and are comfortable interacting with society. So, by that description, women would be better engineers even by the stereotypes he proposes.”
Having had my rant up thread I'm gonna ignore the tag-team "but, but, but women are just a bit thick and can't do tech, init?" going to ignore posts I don't think bring anything to the thread and discuss with my fellow women tech/science workers who do actually understand the issues.