Ben Horowitz says Silicon Valley is hard to recreate because it requires talent, policy, and culture: "The first is you do need the talent... is there a great technical university that graduates people who know how to build things?" "Many countries have that, that don't have a Silicon Valley. And what are they missing? They're missing the other two components." "The second is, do you have a set of laws and policies that facilitate entrepreneurship, are essentially good for business?" "The…