Zuckerberg told a Stanford event if he was starting Facebook today, he'd stay in Boston.
Instead, history being what it was, Zuckerberg dropped out of Harvard, where the Facebook idea originated, and moved out to Silicon Valley.
Zuckerberg says the valley has a short-term mentality, but he acknowledges his social networking site wouldn't be where it is today -- with nearly a billion users worldwide -- without having Silicon Valley expertise and capital.
