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Q&A Rigorous Science Meta
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Q&A If an immortal, fabricated particle could travel FTL, would it exist in all times, or only the past relative to its present?

This seemed too scifi or hypothetical for physics, so here goes. Suppose a manipulated quark with 0 mass could travel faster than the speed of light. It's known that the faster you go, the slower...

5 answers  ·  posted 8y ago by Bango‭  ·  last activity 8y ago by Bango‭

Question space travel astronomy physics faster-than-light time-travel time light spacetime-dimensions dimensions