Simple economics, actually. It's virtually a fact. For one, Facebook employs a knowable number of people. It's not infinite (though it may seem like it). The pr

Simple economics, actually. It's virtually a fact. For one, Facebook employs a knowable number of people. It's not infinite (though it may seem like it). The problem is, these things are always done in half measures, and they'll never actually build enough to solve the problem, so you'll never see it proven.