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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The “universe” itself doesn’t really age at all. Only “stuff in the universe” ages. We call this aging of the stuff “entropy”
The expansion of the universe “faster than the speed of light” at very large distance scales only results in the overall thinning and isolation of the stuff in the universe. A very long time (unimaginably long time) from now we’ll only be able to see our what was once our galaxy merged with it’s closest neighbor galaxies and then just empty blackness beyond.
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