> Because I think it's incredibly naïve to think perpetual motion machines would be possible, precisely because they do violate the laws of physics. What do pe

> Because I think it's incredibly naïve to think perpetual motion machines would be possible, precisely because they do violate the laws of physics. What do people mean by 'perpetual'? 1 year, 100 years, 1 million, is it expected to outlast the universe? And 'laws of physics' is such an anachronistic term, it carries such baggage with it, better to say 'what we think we know so far'. And a 'perpetual energy machine' is trivial, punch a hole through to another universe and siphon their energy out. That's probably what black holes are, another universe has punched a hole through to ours and is sucking the energy out. Is it perpetual? Well, it'll last a billion years or so. Does it violate our naive understanding of physics? Not at all.