Originally posted by twhitehead
How does general relativity explain it? It is my understanding that in general relativity, space-time is curved by mass. Take away the mass and the space-time bounces back to flat. Surly that too implies some sort of pressure pushing the space-time back to a flat plane?
Yes, space/time is warped by collective matter. Bounce? I can't think of a bounce unless the matter is destroyed, like by antimatter.
From what I was taught, gravity is caused by matter taking the path of least resistance in time. The planet is causing a deficit in time. Time passes slower here than in space away from earth's gravity well. It is very slight and cannot be noticed though. Only an atomic clock can detect the difference.
That gravity does result in pressure of matter, but it is supposed to be the matter causing the warp in space/time.
The author of the theory is claiming that pressure is caused by the space around matter by comparing it to fluid. That sounds like ether theory to me. As some have said, "if light (in a vacuum) is a wave, what is waving? That was the argument for claiming the existence of the ether, but experiments to confirm an ether have failed.
My personal theory is that electromagnetic waves are disruptions (ripples) of space/time itself. After all, if there is no ether the space/time must be the ether like medium that allows light to travel. I cannot prove this though. Just a theory.