> Sorry I’d im way off here. But if we are looking at other systems and galaxies such as the andromeda system, why should we expect contact? If the light we are seeing from andromeda is two million years old, wouldn’t any communication take much longer?
Yes, the 2-million year delay would be a major hamper to two-way *communication*… but just listening out for noises that might be intelligent can be done here in real-time.
Consider camping in a vast forest where it seems like you’re the only person for miles and miles. If you start to hear a radio blaring rock music from a valley over you basically have proof that you aren’t *actually* the only person around even though it would take you a while to get close enough to yell *”Hey can you keep it down!”*.
Organizations like SETI and whatnot are basically just listening to other galaxies and hoping to be the first people to hear Alien rock music.
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