We take a look at history, or rather, how it could have been different. During this hour, we hear from people who study history in various forms; they will help us understand how one moment, mindset, event, or series of events could have changed history. We talk about a number of subjects, including the Beatles, the Erie Canal, Brexit, and more. Our guests: Amit Batabyal , professor of economics at RIT Adam Frank , astrophysicist at the University of Rochester and contributor to the NPR blog 13