Fridge makers were required to do what they claimed was impossible: Create a refrigerator that does not kill children. They put their best minds to the task, because they had to, and came up with an incredible invention called a “magnet.” Turns out if you line the door with magnets, the door stays closed and dumb little kids can get out if they need to. Go fig. By the way, no child in the United States has died from suffocating in a fridge designed after the Refrigerator Safety Act was passed. Not bad for impossible.