This has already perplexed me on this shift - on discrimination on older tech workers and woman in tech compared to now- because 40 years ago THEY were the predominant tech force. The idea of the young white-asian male being dominant in this work force is relatively new, correct? What shift happened?
Looking at degrees in the US, IIRC, the shift did happen in the mid/late 80s. I have no idea what might have caused it, but basically the male/female ratio was pretty consistent until then, when male degrees suddenly skyrocketed while female rose slowly, at a pace very closely in line with the previous pattern.
