I in rarely meet people from UW these days and I live near enough to campus in Ballard. People from all over wind up here for some reason, which is bad for traffic but whatever. So not much UW, but a-lot of IIT and Tsinghua. Seattle doesn’t need to grow its own talent, they come for the weather and mountains.
You would be surprised how many people can tolerate rain but not extreme heat or cold. Mild climate means our average temperature is 55 and deviates by 10 degrees either way.
