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by rhinokungfu
2391 days ago
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Posted this to a point above, but probably more pertinent here, so reposting -
Some of the confusion is, I think from referring to speed of light as "speed of light". When it really is speed limit of causality between 2 points in space. And light (em waves) just happen to be able to hit that limit. Now since expansion of space is itself not going to allow one point in space to cause any effect on another, it (the expansion) can be faster than speed of causality.
PBS space time has a good video on this - https://www.youtube.com/watch?v=msVuCEs8Ydo |
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