>Saying "hi" for fun to other civilizations isn't even something we do on our own planet with our own people. We do that all the time, in as many ways as we ca

>Saying "hi" for fun to other civilizations isn't even something we do on our own planet with our own people. We do that all the time, in as many ways as we can think of. From the top of my head: - amateur radio - sending lasers signals to the moon and waiting for it to get back - chatting with random strangers on internet - the Arecibo message on space - SETI is basically trying to catch an alien "hello" - sending "messages on bottles" Really, sending "hi" in imaginative ways for no reason is a very human thing to do