Think of a disaster movie. Any disaster movie. Whatever the central threat, from Godzilla to malevolent extraterrestrials to climate catastrophe, there will be at least one scene full of people behaving at their worst: looting expensive luxuries from abandoned stores, smashing windows, screaming in panic, shooting at their neighbors. According to Hollywood, society is just one bad event away from near-total collapse, unleashing the Hobbesian wolves of our worst impulses and setting everyone against everyone else.