A direct communication proposal to test the Zoo Hypothesis https://www.sciencedirect.com/science... One possible explanation for Fermi's Paradox is the Zoo Hypothesis which states that one or more extraterrestrial civilizations know of our existence and can reach us, but have chosen not to disturb us or even make their existence known to us.
METI's First Message is a Music Lesson for Aliens https://www.wired.com/story/metis-fir... The meat of the transmission was carefully crafted by METI International—the alien hunters so serious about Messaging Extraterrestrial Intelligence that they splintered off from the SETI Institute to get more ambitious. It's the first information-rich message they've sent since forming in 2015. And with this bit of code, constructed in partnership with the Spanish Sónar music festival and the Institute of Space Studies of Cataloniar, they want to teach aliens about music—one radio wave pulse at a time.
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