Did You Know Faster-Than-Light Messages Could Send You Back in Time? The tachyonic antitelephone is a thought experiment in physics that shows how faster‑than‑light (FTL) communication would break causality—meaning effects could happen before their causes.It was proposed in 1962 by physicist Gerald Feinberg. #Tachyon, #Antitelephone, #TimeParadox, #FasterThanLight, #ScienceFacts, #Physics, #Relativity, #MindBending, #SciFi, #QuantumPhysics, #TimeTravel, #FutureTech, #ScienceExperiment, #ThoughtE