I read this article and can't help to see how much cultural views and media representation is blending facts with fiction. Starting with the statement "Compared to almost any other industry, women are underrepresented in technology", looking at gender segregation statistics per profession paints a very different picture. Taking Swedish statistics (which get collected as part of taxation and made public), technology profession are usually very average with around 75%. It sounds huge thinking that for every 1 woman there is 3 men, but that is about average for every employed swede for both men and women. You take a random person of the street and there is around 80% chance that the person is working in a profession which has higher than 2:1 gender ratio. The official definition of a gender segregated profession is 60/40 or higher, and 88.5% of the population falls in that category with about 12% women and 13% men working in gender equal professions. Going from the other end, I am manually looking at the list and there is 40 professions with 90% or higher gender segregation none which clearly fits as a technology profession. Top 1# is midwife with 99.7% women (total 5692) and #2 is floor installation with 99.4% men (total 3581). The first recognizable technology profession (system programmer) is listed with 80% men, ranked #75th worst of a total listed 156 professions (including the few gender equal profession).
Without this context, discussing numbers like "women hold only 25% of technical roles" is impossible. 75th position means (given equal distribution) that taking a random person of the street should give a 50% chance of them working in a more gender segregated profession than technology.
What is causing half the population of Sweden to choose gender segregated professions where the majority outnumber the minority with 80% to 20% and do the theories of the article explain it? Personally I don't think so. If social behavior would be a major source then we should be able to predict which professions would be dominated by men and which by women if we ranked the social engagement in the work place, but such prediction model seems poor when I manually go through the top worst segregated professions where both male and women professions are mostly team based.
http://www.duochjobbet.se/nyhet/nio-av-tio-har-jobb-med-ojam... (for a 2012 list that was easiest to grab, but one can always go to the Statistics Sweden (SCB)).