Markus Hanke
Registered Senior Member
Are you telling me that GR does not maintain that the curvature is felt instantaneously while the changes or interruptions to the motion of objects is time delayed. That was my misconception then.
Right, I misunderstood you; my impression was that you were talking about some "action" that needed to be performed by energy to curve space-time, and whether that was instantaneous.
Anyway, the above statement is of course correct; static fields are "felt" instantaneously, whereas changes in the field propagate at the speed of light. This of course makes sense, because a static field is just simply curved space-time; a body approaching such a field will follow the "contours" of that curved space-time, right there and then at every point it traverses. There is no exchange of information ( i.e. exchange of particles ) required for static fields.