Fastest Travel
Suppose that we are the light and travel out into the universe in a straight line as in Pic 1 (Black Arrow)
If following The Line Theory, the light will become a curve and return to its original position as in Pic 2 (Black Arrow)
How Fastest Than Natural Light?
I think that reflection ourselves from the mirror is the fastest way to get back to the original location as in Pic 3 (Red Arrow)
The result is a return to the original position (Green Arrow).
And Someone will call this method like..... "Cheating"
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