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alukyane t1_j0get2c wrote

Reply to comment by SomeoneRandom5325 in Does rotation break relativity? by starfyredragon

So if they're indistinguishable, I shouldn't be able to measure different "absolute acceleration" in the two, right?

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ableman t1_j0hd6f8 wrote

Yes, though I feel like there's some confusion here. An orbiting/freefalling reference frame is indistinguishable from a non-accelerating one. The reason they're indistinguishable is because of general relativity. Or phrased another way, them being indistinguishable is really weird and why we need general relativity.

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Game_Minds t1_j0gr3sv wrote

Any hypothetical measurements of acceleration would be skewed by miniscule differences in things like local gravity and additional undetected rotations, so it would be hard to pinpoint why they don't match up

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