"...if we trace the path of a photon on a space-time diagram, the only way for a photon to remain stationary in space-time is to move at the speed of light, or to keep up with the expanding time dimension..."
Nuts, mate. What about multidimensional orbits? A photon orbiting in 4 dimensions would appear to interfere with itself in 3 dimensions (it'd enter the same 3d space twice). You could probably say the same with more dimensions but I don't want to think about that while I'm working.
Slashdot Mirror
"...if we trace the path of a photon on a space-time diagram, the only way for a photon to remain stationary in space-time is to move at the speed of light, or to keep up with the expanding time dimension..."
Nuts, mate. What about multidimensional orbits? A photon orbiting in 4 dimensions would appear to interfere with itself in 3 dimensions (it'd enter the same 3d space twice). You could probably say the same with more dimensions but I don't want to think about that while I'm working.