>>11452895>https://arxiv.org/abs/1806.02404Fermi's paradox accounts of planets in habitable zones, there can even be life that Fermi haven't mentioned, like life that escaped their own local supernova explosion.
Point telescopes at going to be supernovas, and look for there for potentially habitable planets, closer to supernova, more possible you will catch some sort of...
Well, would you hear something from that much distance without being invented.
There can be whole colonies of spaceships, we haven't heard of, and even maybe heard of us, but we're sort of observed from distance, because aliens, not like us, like the nature, and we're nothing like nature, so they are afraid of human approach to their technology.