The social angle for the IT industry is interesting. There is a dynamic of power happening- but it's not the whole picture. The racism based explanation doesn'

The social angle for the IT industry is interesting. There is a dynamic of power happening- but it's not the whole picture. The racism based explanation doesn't seems to work - just like for fast people, where you gave a great example: they self select more lucrative and higher status alternatives. Under performing pupils also self select, for failure, but the reason is different : it's based on their own prejudice and a cultural norm saying XX people should do YY. Anyway, in the end people self select in or out - and that's a self perpetrating tendency based on an initial trend for whatever reason. "racist" enforcement and society couldn't do that much damage by themselves. However, cultural norms most certainly could - especially when people believe them. IMHO, the simplest explain is the better.