Can a Light Spot Go Faster than c?

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  • Thread starter Thread starter Dr Lots-o'watts
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SUMMARY

The discussion confirms that the light spot created by a laser pointer can appear to move faster than the speed of light (c) when it is projected across a surface, such as the moon. This phenomenon occurs because the spot is a series of reflections rather than a physical object or wave. As no information is transmitted with the movement of the spot, it does not violate the principles of relativity.

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Dr Lots-o'watts
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Please remind me, the red dot caused by a laser pointer, can it go faster than c?

It's neither matter, nor light, it's a series of distinct reflections, so with a quick flick of my wrist here on earth, that spot could zip across the moon faster than c right?
 
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Yes it can - there is no information moving, so no problem
 

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