Jones, I second your statements regarding reversible chemistry and think it can exist at multiple different scales (Quark soup, molecular bond and even astronomical). The quark soup is beyond my meager abilities and everyone already knows my pet theory of using changes in ZPE to disassociate fractional molecules but I think the astro scale would also provide the same opportunities to create chemical asymmetries. My point is that the same timing tricks you could pull chemically or mechanically WRT changes in gravity by falling into and then pulling out of a gravity well at our scale are also available at the mesoscopic scale and below using Casimir force and vacuum space engineering. Also note the same time dilation curiosities of a gravitational well exist but the gradient is abrupt and the energy density is suppressed instead of intensified such that you form a gravitational hill or "warp" space.
Regards Fran
