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- TL;DR Summary
- If light travels at C+V in one direction and C-V in the other, could we detect that? How? If not, could this indicate something profound about light and spacetime?

From what I've read, it is not possible to measure the one way speed of light. We must reflect it off a mirror and then divide its travel time by 2, giving us its round trip average speed. Time dilation makes synchronizing two separated clocks impossible. We just assume light goes at C in all directions. (I'm not talking about the speed of its source or detector. Assume everything is in the same inertial frame) Please correct me if I'm wrong.

If it goes at C+V in one direction, it must go at C-V in the opposite direction. We always measure an average speed of C. But we can never know what V is. Could this lead to something profound about light and space and time? Maybe light has no definite one way speed. Maybe it is in a superposition of all speeds. V is every velocity 0 < V < C. Is this possible? Has any physicist explored this? Or is the one way speed of light just a trivial curiosity?

If it goes at C+V in one direction, it must go at C-V in the opposite direction. We always measure an average speed of C. But we can never know what V is. Could this lead to something profound about light and space and time? Maybe light has no definite one way speed. Maybe it is in a superposition of all speeds. V is every velocity 0 < V < C. Is this possible? Has any physicist explored this? Or is the one way speed of light just a trivial curiosity?