Escalators are more than just fun stairs. They let you check your phone, carry heavy objects, sleep standing up, all while transporting you from one place to another. When they break down, they become stairs! They're the best way to move from a lower place to a higher point since climbing trees! Some people have a hard time with the concept of moving stairs, and try moving against it, only to tumble down in a hilarious heap. Escalators move in one direction, genius!