We have figured out a new way to send messages into the past
Researchers at MIT have proposed a theoretical method inspired by quantum entanglement and the film Interstellar that models sending messages backward in time using noisy quantum channels. Their approach suggests that communication through a simulated closed time-like curve could be more effective than conventional noisy communication, due to the sender's memory of past events aiding message encoding. While not enabling actual time travel, the model may lead to improved strategies for handling noisy communication systems in the present.
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Physics We have figured out a new way to send messages into the past A technique inspired by the film Interstellar suggests a new way of communicating backwards in time, but it could help improve conventional communication systems as well By Karmela Padavic-Callaghan 30 April 2026 Facebook / Meta Twitter / X icon Linkedin Reddit Email Closed time-like curves offer a route to the pastRoman Budnikov/Alamy What if you could send a message into the past? The laws of physics don’t forbid it – and in fact, in some cases, communicating backwards in time might actually be easier than the usual direction.
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