>>Saying "hi" for fun to other civilizations isn't even something we do on our own planet with our own people. Actually, ham radio operators do exactly this. T

>>Saying "hi" for fun to other civilizations isn't even something we do on our own planet with our own people. Actually, ham radio operators do exactly this. They literally send out messages out into the ether with the hopes of someone replying. QSL: https://rsgb.org/main/get-started-in-amateur-radio/operating-your-new-station/how-to-send-and-receive-qsl-cards/ https://rsgb.org/main/get-started-in-amateur-radio/operating...