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A comment on Water found on a potentially life-friendly alien planet. Parent comment

Re:Water found on a potentially life-friendly alien planet by atonalfreerider on Wednesday September 11, 2019 @06:01PM (#20945215)
> Special Relativity can be summed up in the sentence: “We live in a spacetime which is an M4 manifold with a hyperbolic Lorentz metric of signature (+−−−)”. General Relativity can be stated accordingly: “The Universe is an M4 manifold with a Riemannian metric of signature (+−−−)” which is a solution of the Einstein equation:Rμν−12Rgμν+Λgμν=χTμν.

It sounds like you get anti-gravity for free along the way to getting superluminal travel.

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Re:Water found on a potentially life-friendly alien planet by pierre_d528 on Wednesday September 11, 2019 @06:32PM (#20945529)
No because no "run away" effect. "inverted" mass means that the mass goes on the other side... gravity works the same there.
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