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Also of note is the Arecibo Message: https://en.wikipedia.org/wiki/Arecibo_message https://en.wikipedia.org/wiki/Arecibo_message (and hilariously the Arecibo An

by joshu 6y ago

Also of note is the Arecibo Message: https://en.wikipedia.org/wiki/Arecibo_message https://en.wikipedia.org/wiki/Arecibo_message (and hilariously the Arecibo Answer: https://en.wikipedia.org/wiki/Arecibo_message#Arecibo_answer_hoax https://en.wikipedia.org/wiki/Arecibo_message#Arecibo_answer... )