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A speculative form of faster‑than‑light information transfer that uses principles derived from [relativity warp] drives—i.e., manipulating spacetime geometry to carry a signal without locally exceeding light speed. This could involve creating a warp bubble for a light pulse, sending signals through a traversable wormhole, or exploiting relativistic effects to make signals appear superluminal while respecting causality (see Preserved Causality Hypothesis). Unlike [quantum entanglement] (which cannot transmit usable information), relativity FTL [communication] would allow sending actual messages across interstellar distances in negligible time.
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