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Re:Broadcasting from Deep Space, a Mysterious Series of Radi... by fernandopj on Sunday January 13, 2019 @09:15PM (#18900112)
>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

Re:Broadcasting from Deep Space, a Mysterious Series of Radi... by ianai on Monday January 14, 2019 @12:42AM (#18900941)
Who hasn’t shouted “hello” somewhere likely to have a good echo?