Submitted by Sol33t303 t3_11g1vky in askscience
Lalaithion42 t1_jat9vmk wrote
Reply to comment by Quizznor in Could we enter a stable orbit of a black hole which enters the even horizon and comes back out? by Sol33t303
An object traveling faster than the speed of light is going backwards in time in some frames, so there's not actually any disagreement between "going back in time" and "it would require the velocity to exceed the speed of light".
Quizznor t1_jav779k wrote
>An object traveling faster than the speed of light is going backwards in time in some frames
Where are you taking this information from? This "follows" from special relativity, where massive objects travel at strictly less than c.
Such statement don't have any physical meaning. You're braking the assumptions that were used to derive the equations you're relying on.
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