Even if a society on the nearest start to our Sun survived at a technological level for only 4 years,that is long enough to exchange messages with them.

Question

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The nearest star to our Sun, Proxima Centauri, is about 4.24 light-years away. It would take over 4 years for a message to travel one way, so a 4-year technological lifespan would not be sufficient for a round-trip exchange of messages.

Even If a Society on the Nearest Start to Our