there has been some passionate discussion in regards to this topic, and I wanted to make a few comments. Firstly, I don't see a reason that the 'over unity' crowd should be singled out. Claims of operating at close to 100% efficiencies also deserve equal scrutiny. Much of what I've seen on the internet are in fact methods of parasitic extraction, aquiring the title of 'free energy'. As we know, unity is the state of 100% converstion, an ideal situation. We also know that there are devices that improve under unity conditions, and therefore must be over unity in themselves. But alas, operating at over or under unity has power penalties. We take under unity as granted, and I don't see why we should deny the over unity crowd thier place, after all, they will consume as much as everybody else, just on the other side of the coin. What it does do, is get people thinking and experimenting. And in the end, maybe they'll show us how we can improve our performance.