When Einstein developed his Special Theory of Relativity, he assumed that light travelled at the same speed between two points no matter which direction it was moving in. But is that really the case, and would the Universe look any different if it were not?
Wisp Unification Theory - almost the theory of everything
Speed of light - Wikipedia
Veritasium on X: If the speed of light is different in different directions, wouldn't the universe look different one way than the other? The short answer is no. The long answer explaining
Distant Starlight Answers in Genesis
No One Has Measured The Speed Of Light: Let me prove it, by ShutUp JustFocus
Can we measure one-way speed of light?
True Speed Of Light Was Never Really Measured: let me prove it
Is Speed of Light a Lie?
One-way measurement of the speed of light -eastward transmission
The One-Way Speed of Light - Again!
Analysis of the experiments One-way measurement of the speed of light –
If we harnessed the ability to manipulate gravity, theoretically could we have the ability to transmit information faster than the speed of light? Interestingly, we could then measure the speed of light
PDF] PRECISION MEASUREMENT OF THE ONE-WAY SPEED OF LIGHT AND IMPLICATIONS TO THE THEORY OF MOTION AND RELATIVITY