>I find the entire article doubtful. What makes it extremely doubtful IMO is that even a partial gravitational shielding would violate the principle of Conservation of Energy.
"Actually, there is a field of physics in which energy is not conserved: it's called general relativity. In an expanding universe, as we have known for many decades, the total energy is not conserved. Nothing fancy to do with dark energy -- the same thing is true for ordinary radiation. Every photon loses energy by redshifting as the universe expands, while the total number of photons remains conserved, so the total energy decreases. An effect which has, of course, been observed." http://preposterousuniverse.blogspot.com/2004/05/doubt-and-dissent-are-not-tolerated.html
