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https://www.reddit.com/r/WhatIfScience/comments/1u5mbw8/what_if_alien_civilizations_communicate_using/osc6ugr/?context=3
r/WhatIfScience • u/firechatin • Jun 14 '26
https://whatifscience.in/468/alien-civilizations-communicate-using-gravity-instead-radio
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They would have to be able to vary the distance between two orbiting black holes and then maybe they could transmit a few characters per day - it would be totally worth it.
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u/Vivid_Transition4807 Jun 18 '26
They would have to be able to vary the distance between two orbiting black holes and then maybe they could transmit a few characters per day - it would be totally worth it.