People can be very frustrating. Machines, they can be frustrating, too, but not like people. A machine at least adheres to certain physical laws. It may take all day, but eventually you or someone with more experience will be able to what's wrong with a machine. People we can spend our whole lives trying to figure out and get nowhere. It's all in the logic. Machines, even software running incredible amounts of code will eventually adhere to something logical. People are rarely this way, which is what makes them so frustrating, and sometimes, so much fun.