Ok, here me out on this one. I got thinking a while back after I read some very amazing books quantum physics and theory of relativity and and a thought just came to me. I might just be crazy though. My friend and I were discussing light speed and how gravity seems to "bend" light. We all know of these gravitational "lenses" that are created by galaxies millions of light years away. But then I got thinking of the speed of light and gravity. I made up a scenario of the disappearing sun. One day the sun disappears. Now, we all know that light takes 8 minutes or so to travel from the sun to the Earth. If the sun disappeared we would not know until 8 minutes later. Then I thought of this question: If light takes 8 minutes to reach Earth from the sun, how long will it take before we notice the change of gravity from the sun not being there? In one of the books I read (I think it was the Fabric of the Cosmos), it explains that light and gravity have the same "speed" so to speak. If light and gravity have the speed, that means that the space-time is changing at the same rate as the speed of light. (When the sun disappeared, the space-time that was distorted will change back to flat space at the same rate as the speed of light). What I'm saying is that the warping of space-time (gravity) will change at the same rate as the speed of light. It's late and I had no coffee, so I could be out of my mind. What do you guys think?