If I understand it correctly, we measure time by how fast light passes, or something similar to that. Now if the universe expands faster than the speed of light, would that mean that the universe ages faster than earth, or maybe slower than earth? Maybe this doesn’t make sense but I have a gut feeling that there’s something to it…
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For the record, relativity suggests nobody is moving per-se. It feels like you’re treating celestial bodies as if they’re ships moving through water, and the water (or space) is eroding. That’s not quite what’s happening.
Essentially, most celestial bodies are “standing still” and are not experiencing time at a significant difference (as far as I know). Yes, they’re still moving, but we’re not certain about the specifics, and anything I say will be hypothetical. It would be more accurate to say space is being added between.
By your logic, aliens on the opposite side of the galaxy perceiving time would affect our local time and everything would accelerate. That doesn’t make sense.
Although it would explain how aliens showed up to visit earth, if that really happened (which it didnt.)
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