Originally Posted By: Orac
Nope there isn't any, look at the formulation of spacetime, you have a different time at every point in space that is what it says and you write it's coordinates [x, y, z, t]. All you can ever do is at some point in time have areas of space that are approximately the same enough to do some measurements that might make sense to you locally. Quantum mechanics goes further and says each of those points is evolving over time in a state of superposition.


If your spacetime coordinates for one point are x,y,z,t and for another point are x1 ,y1, z1 ,t1; if one could, in principle, travel between the two at c, wouldn’t they appear, in the RF of the traveller to be superimposed?

There never was nothing.