Humans are uniquely aware of our own mortality. Someday, hopefully later rather than sooner, each of us is going to die. For our guest, Dr. Sheldon Solomon, recognition of our own death is the most important idea in human history. Sheldon argues, and he has the proof to back it up, that the awareness of our own death (“mortality salience,” is his fancy term for it) influences all aspects of our lives, from religion, to art, to—and this where it gets really interesting for us—our politics. Sheldon calls it “Terror Management Theory,” and he explains that this is what sits at the core of Donald Trump’s appeal.