Confidentiality is overrated, outside of narrow areas of core tech. A few years ago, Facebook hired a massive fleet of Google experts, and replicated a lot of t

Confidentiality is overrated, outside of narrow areas of core tech. A few years ago, Facebook hired a massive fleet of Google experts, and replicated a lot of the tech and open sourced it. But the reason they cause Google competitive trouble is because Google didn't understand the social product and have a culture to build it, not trade secret tech problems.