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A comment on How far could a spaceship go if we never ran out of thrust? (2020). Parent comment

Re:How far could a spaceship go if we never ran out of thrus... by eru on Tuesday August 10, 2021 @05:33AM (#28126778)
> It turns out that there is a rest frame in which this background looks the same in all directions.

I was really surprised when I heard this for the first time a while ago. Because it means that our universe does have a _preferred_ frame.

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Re:How far could a spaceship go if we never ran out of thrus... by chii on Tuesday August 10, 2021 @06:09AM (#28126985)
it's not really preferred in the sense that it's the correct one - just one which has some sentimental meaning to humans' interpretation.
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Re:How far could a spaceship go if we never ran out of thrus... by eru on Tuesday August 10, 2021 @07:33AM (#28127517)
Well, 'preferred' as in 'different from all the others in a way even aliens would recognise' (ie in accordance with https://en.wikipedia.org/wiki/Copernican_principle ).
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Re:How far could a spaceship go if we never ran out of thrus... by TeMPOraL on Tuesday August 10, 2021 @07:35AM (#28127539)
Aka. a Schelling point.

https://en.wikipedia.org/wiki/Focal_point_(game_theory)

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Re:How far could a spaceship go if we never ran out of thrus... by eru on Tuesday August 10, 2021 @08:28AM (#28127969)
Well, it can serve as a Schelling point. But it's interesting, even without any game theory.
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