A runaway train hurtles down the tracks toward a group of five workers. If nothing is done, they will all die. It’s possible, however, to stop the train by pushing a bystander onto the tracks. His death will slow down the train enough to save the five workers. Would you push the bystander onto the tracks? In this scenario, most people would be unable to push the bystander onto the tracks—unable to kill a person with their own hands even to save the lives of five other people.
