What I mean by this is that every day, people post billions of pieces of content and connections into the graph and in doing this, they’re helping to build the clearest model of everything there is to know in the world. A big part of why this works is that people can share things with any audience they want. They don’t have to share publicly with everyone at the same time; they can share with just their friends. So this means that the model of the world that people are building in our systems includes things that people only want to share with just a few people. This has the potential to be really powerful, but right now, we actually do very little to utilize the knowledge that people have shared to benefit everyone in our community.