"Are we living in a post-truth world, where (3zalternative facts(3y replace actual facts and feelings have more weight than evidence? How did we get here? In this volume in the MIT Press Essential Knowledge series, Lee McIntyre traces the development of the post-truth phenomenon from science denial through the rise of (3zfake news, (3y from our psychological blind spots to the public's retreat into information silos. What, exactly, is post-truth?...