Study calculates how much information could be sent backward in time through closed timelike curves
By
Clara Moskowitz
Pulled from the oven just right. Trustworthy, fact-dense, deeply satisfying.
Summary
This article explores the theoretical possibility of sending information backward in time through closed timelike curves (CTCs) — exotic spacetime structures predicted by Einstein's general theory of relativity. It discusses how extremely curved, rotating spacetime around objects like spinning black holes could theoretically warp cause and effect, creating channels for backward communication. A new study has calculated the maximum amount of information that could be sent backward through time via these CTCs, examining the intersection of quantum mechanics and general relativity.
Key quotes
· 3 pulledIf something is allowed by the laws of physics, then scientists can assume that it probably exists.
Spacetime can curve...
Extremely curved spacetime can warp cause and effect, creating channels for backward communication
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