Quote:
Originally Posted by BigChiefTablet
At the speed of light, time stops. So why would it take light "years" to do anything?
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That's not necessarily true, since we don't have proper physics to explain things happening at the speed of light. It's not possible to form a frame of reference for a photon. It has no detectable mass, and is traveling faster than c. We can't apply special relativity to a photon for those reasons. Our physics aren't complete enough yet. It might be better to say that at the speed of light, time in unable to yet be defined.