Dude, this statement - No you probably wouldn't, as Silicon Valley attracts the top X% of the tech population Could literally be summarized/rephrased as - Si

Dude, this statement - No you probably wouldn't, as Silicon Valley attracts the top X% of the tech population Could literally be summarized/rephrased as - Silicon valley doesn't have a lot of black people, because it attracts top talent only. I do presume you didn't mean it that way, which is why I didn't expand on it. But I want to point out that is the impression given. One could argue that for a myriad of reasons, probably mostly money(again, for its own reasons), some minorities are underrepresented in the best tech schools and/or do not have the funds to up and move to the coast. That's an absolutely fair assessment. But I wouldn't assume that they are automatically not 'top talent' for those reasons. In my experience, the bay has a pretty low signal to noise ratio. Cheers.