Stories matter. Among much else, they help us grapple with unavoidable complexity. More than that, they help us cope with chance, threat, uncertainty, and time. For most of human history, reacting to stories has often been a matter of life and death. Even if wrong sometimes, those who intuited and reacted to unexplained threats were more likely to survive. Through millennia, we are hard-wired to tell, absorb and respond to stories. Ernest Hemingway, the potent chronicler of the barroom, the battlefield, and the bullring was one of the greatest storytellers. From famed hostelries on every continent to the trenches of…