Not an expert in this field, but I don't believe we are looking for any directed "Hello, we are over here! Look at us! Hey, humans, hey, over here!" signals, but more "literally anything that would imply the existence intelligent life."
Humanity blasts all sorts of signals indiscriminately into the universe. Our best guess is that other intelligent life would do the same. I mean, sure, obviously we're also looking for the former, but we're expecting the latter.
Humanity blasts all sorts of signals indiscriminately into the universe. Our best guess is that other intelligent life would do the same. I mean, sure, obviously we're also looking for the former, but we're expecting the latter.