Bill Gates is no public health expert. He is not a doctor, an epidemiologist or an infectious disease researcher. Yet somehow he has become a central figure in the lives of billions of people, presuming to dictate the medical actions that will be required for the world to go “back to normal.” The transformation of Bill Gates from computer kingpin to global health czar is as remarkable as it is instructive, and it tells us a great deal about where we are heading as the world plunges into a crisis the likes of which we have not seen before.