 then it's not a perpetual motion machine. It's something else. There are machines that will last a long time. It's just not a perpetual draw power off of a forever machine. Well, what's the purpose of having a power machine if you can't draw power off it? Well, I suppose you could use nuclear power. That's not quite perpetual, but it's pretty darn close. Well, yeah, we'll talk a little bit about the laws of thermodynamics here.