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Inspired by Interstellar, MIT Physicists Show that Sending a Message to the Past Could Be More Cost-Effective than to the Future

Science fiction multiplies time travels, most often as prowesses without serious physics behind. But quantum intrication, validated in the laboratory, opens a narrow flaw in the arrow of time. According to the calculation, transmitting messages to the past would require less effort than towards the future, provided that it accepts a dose of noise in the channel. A noised quantum channel, more efficient in the sense of the past The idea starts fr…
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Science fiction multiplies time travels, most often as prowesses without serious physics behind. But quantum intrication, validated in the laboratory, opens a narrow flaw in the arrow of time. According to the calculation, transmitting messages to the past would require less effort than towards the future, provided that it accepts a dose of noise in the channel. A noised quantum channel, more efficient in the sense of the past The idea starts fr…

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Science-et-vie.com broke the news on Monday, May 25, 2026.
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