Everytime the subject of zero point energy comes up, I wanna ask, where's the 'drain', the 'cold side', the 'pressure release'? At the bottom of the ocean, you have tons of pressure per square inch but what good is that? You need an area of reduced pressure to get a flow going. Likewise, hot to cold and uphill to downhill. If zero point energy is squishing everything everywhere, what good is it and furthermore, how can it be measured? Relative to what hole in the cosmic vacuum? I suppose the Casimir force is suggestive (like a bubble underwater relative to surrounding pressure) but how can a continuous action be created?
