Whats the difference between the speed of light and the speed of gravity?
The warping of space-time is a mathematical description of the effect of gravity, not the cause. There is no time factor in the general relativity equations for calculating the warping of space-time; this amounts to a tacit assumption that the force of gravity propagates at infinite speed. Gravity waves, on the other hand, are believed to propagate at the speed of light—if they even exist. If the force of gravity had a speed-of-light delay, the sun would pull the Earth toward where we see the sun, which is where it was 8 minutes ago. This would hurl us out of the solar system within a few years. For this reason, VanFlandern calculated that the force of gravity propagates at least 20 billion times faster than light, though he believed it was not infinite. To avoid the philosophically unacceptable problem of force at a distance without an intermediate particle, several theories have been proposed, but none yet have succeeded. Fatio & Lesage, 300 years ago, proposed ultra-numerous, ultr
