It's a question of degree. Obviously there is still some secrecy (see Apple). But I can't argue with the general culture of information sharing being much mor

It's a question of degree. Obviously there is still some secrecy (see Apple). But I can't argue with the general culture of information sharing being much more prevalent in SV than elsewhere, and I've spent my career split between Mountain View, Minneapolis, Santa Fe, and London, so I think my anecdote carries some validity.