Open source, like private property, markets, science, and Satoshi consensus, enables people to benefit from the work of others that they don't have a means of c

Open source, like private property, markets, science, and Satoshi consensus, enables people to benefit from the work of others that they don't have a means of coordinating with—for example, because they're dead, or they don't trust you, or they're hard to get along with. If you already have a way of coming to terms with somebody, you don't need open source. Different engineers inside Google can benefit from each other's work without making it open source because they're coordinated by Google's management. It's people who aren't coordinating with Google who benefit from them making it open source.