The way I think I understand it, even if we had some “element 0” like in mass effect to keep a starship from reaching unmanageable mass while accelerating, faster than light travel still wouldn’t be possible because you’d be violating causality somehow, but every explanation I’ve read on why leaves me bamboozled.
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Light is the fastest way information can travel. Faster than information travel can violate causality because the result of an action can reach an observer before the action itself.
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