> every criticism I've ever seen of people's attempts at perpetual motion always seem to involve the fact that some part will wear out eventually. Every inform

> every criticism I've ever seen of people's attempts at perpetual motion always seem to involve the fact that some part will wear out eventually. Every informed criticism of perpetual motion machines starts and ends with the second law of thermodynamics. Any experts will usually leave it at that, because people who want to believe in a perpetual motion machine, are going to believe in a perpetual motion machine and any deriving discussion is usually not that interesting.