I was looking at some photographs of Silicon Valley people from 10-15 years ago, and it's amazing how happy everyone seems. Because no one in the outside world cared what we were doing.pic.twitter.com/IXLsITjwqL
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I think there's something in assembling smart, super-young, culturally similar people with no background in anything else, and encouraging them to focus on growth above all. As S. Levy notes, the pathologies of FB today are the result of decisions made in early, startup days.
That's always been the case though. Similar people did similar things. If you became good at this things, you were often singularly focus on those interests. That's always happened. The difference is the current-day culture. It is polarized. Freedom leads to that.
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