Computers are good at games. Well sort of. Computers are good at following rules and making decisions based on rules that are programmed into them. These rules have to come from somewhere and that somewhere is people. That computers are good at playing games is do in large part to the fact that people are good at studying games. The hard part is really figuring out how a game is played and how a set of rules can be created that will enable someone (or some thing) to win on a regular basis. Once that happens a set of rules can be created to feed into a computer. People can learn these rules and more