Eli5: How does Light Travel if it Experiences no Time?

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Einstein’s Theory of Relativity states that light (as it is travelling obviously at the speed of light) is so fast that it experiences no (zero) time. Obviously light does move a distance, as thats how we see things as the light bounces off of objects into our eyes, but surely with the equation ‘distance = speed\*time’ and time being zero it implies light doesn’t travel any distance?

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Anonymous 0 Comments

Distance is velocity * “time in world coordinate system”, which passes at regular rate.

The time the light experiences is irrelevant for that. From the light’s perspective, no time passes so the distance traveled is 0, and because length contraction the distance it perceices really is 0.

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