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by pdonis 2550 days ago
> I thought that light was unable to change its physical properties in time (as observed from our frame of reference) due to infinite relativistic time dilation.

This is not correct. What is correct is that the concept of a "rest frame" for a light ray doesn't make sense. But our rest frame, as observers watching the light, is perfectly well defined, and in our frame it's perfectly possible to see light changing with our time.