Quote:
Originally Posted by Karls48
Travelling at speed of light - Relative to what? The Earth, some distant galaxy receding from the Earth faster then speed of light or centre of the universe?
If Big Bang theory is correct the only meaningful measurement of time, motion and distance is referencing it to the point in the universe where the Big Bang occurred, (and the time and space come to existence).
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This is not right.
The theory of relativity is based on the abandonment of any absolute frame of reference for time and distance - this is the logical result of the (observed) fact that the speed of light is constant no matter where you are in the universe and no matter what your speed may be.