Silicon Valley owes much of its existence to people sharing information between companies: at the Homebrew Computer Club, at Hackers, at First Tuesdays, at user groups, on tours, at parties, in lectures. Some of that sharing was officially sanctioned, and some of it was not. It's a special part of its culture, and I think accounts for much of its innovation. Apple has always been an exception.<p>Google grew up in the shadow of much bigger, better-funded competitors: Microsoft, then later Yahoo. I speculate, without having asked anybody, that this accounts for the culture of fanatical secrecy, outstripping even that of Apple, that has enveloped the company since its early days, and which I think now is a permanent part of Google's culture, even though the bigger, better-funded competitors are now the underdogs, unable to execute.<p>This firing is a symptom of that tradition of secrecy.<p>I fear that the next half-century of the Valley will be poisoned by this, because Google is today's Fairchild, Mountain View's Microsoft. Every new startup will be backed by Googlers or Xooglers, founded by Xooglers, or at least advised by [GX]ooglers. So this poisonous culture of secrecy, which kills innovation, will fill the Valley like a vile miasma, along with the many wonderful things that come from Google experience.