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A comment on The horizon problem for faster than light travel. Parent comment

Re:The horizon problem for faster than light travel by mannerheim on Thursday January 20, 2022 @07:04PM (#30017277)
I believe all of those violate causality, at least if you have more than one of them (more than one pair in the case of wormholes).
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Re:The horizon problem for faster than light travel by senectus1 on Thursday January 20, 2022 @08:52PM (#30018200)
Causality might very well be locked to this universe/space.

I mean its all just sci-fi at the moment. But lots of things we take advantage of today was at one time in the past as well.

I prefer to be optimistic about potential breakthroughs.

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