Basic common sense is key to building more intelligent machines

PONG is a gloriously simple video game: you control one paddle, aiming to bounce the ball past your opponent's paddle. Artificial intelligence has learned to play it so well that it can easily beat human players. But try to get the same AI to play Breakout, a very similar paddle-based game, and it is utterly stumped. It can't reuse what it has learned about paddles and balls from Pong, and has to learn to play from scratch. Computers can learn without our guidance, but the knowledge they acquire is meaningless beyond the problem they are set.