Comment Re:Oh good lord. (Score 1) 225
I think you should ask yourself what it actually means to "use" energy. What purpose can energy have that does not involve irreversibly transforming it to heat?
Or to put it another way: If you have a system that takes in a lot of useful energy, and it does not transform this energy to heat (which inevitably would be radiated as black-body radiation as the system's temperature increases), then you are either: 1) wasting energy, by not exploiting all the work it could have performed before releasing it, or 2) just storing it without actually using it (although the process of storing it would involve performing some work as well).
If, on the other hand, you have managed to build a magical system that can perform useful work without extracting it from the energy you are continually collecting, but can "reuse" energy like a perpetual motion machine, then why the fsck are you collecting more? You don't need it!
Honestly, though, I really think you should pick up a physics text book that covers thermodynamics if you want to understand these things. From your responses (assuming you're not just trolling) it's evident that if you ever read one, you either didn't understand it, or you've forgotten some pretty basic principles and need to refresh. Now the argument sounds more like "I don't really know, therefore aliens can do it. Easy peasy."