“Gravity is faster than light.”
Ok... where is the “gravity” traveling from and where is it going to? How can you measure the speed? Maybe you’ll turn out to be right, but if it can’t be demonstrated, what’s the point of saying it?
http://en.wikipedia.org/wiki/LIGO
Check up, they are already testing it. So far the results are showing that gravity waves travel at c.
It can be demonstrated quite readily.
Look at the sun.
Well, get some good welder's goggles, then look at the sun in the sky.
We know how long that light you see takes to get to the earth. (approx 8 mins if I recall correctly).
If you calculate out the motions of the sun, and earth, the gravitational effects you feel from the sun (this effects where the earth is in its orbit amongst other things), the sun is not in the position it ought to be by virtue of the gravity we feel from it.
This is because the effects of gravity travel faster than light.