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A comment on Alcubierre drive. Parent comment

Re:Alcubierre drive by EastLondonCoder on Monday August 13, 2018 @04:43AM (#17748782)
This is very true, it’s also worth mentioning that all ways of faster than light travel means travel back in time in some reference frame which in breaks causality.
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Re:Alcubierre drive by magicalhippo on Monday August 13, 2018 @06:47AM (#17749193)
Here's a good (IMHO) video showing how this works out, by looking Minkowski diagrams for different observers.

https://www.youtube.com/watch?v=HUMGc8hEkpc

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Re:Alcubierre drive by zamalek on Monday August 13, 2018 @01:50PM (#17752049)
You don't travel faster than light with the Alcubierre Drive, you circumvent travel entirely. Spacetime does the traveling, not the ship.
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Re:Alcubierre drive by garmaine on Monday August 13, 2018 @11:41AM (#17750902)
Breaking causality is allowed by the laws of physics.
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Re:Alcubierre drive by computerfriend on Monday August 13, 2018 @06:50AM (#17749199)
Breaking causality is allowed, though.
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