We can’t even make radio waves that travel that far. Our best radio telescopes focused on something near that we suspect might have life don’t have enough power for us to think they can be received by an arbitrarily advanced civilization on the other end (assuming there is that happens to be listening when the signals arrive). And that is stars in our own subarm of the milky way.
People get really disappointed when they learn that there could be an identical version of earth complete with humans and television orbiting around the nearest stars and we wouldn’t be able to detect them with our current monitoring abilities due to the amount of interference in space.
We can’t even make radio waves that travel that far. Our best radio telescopes focused on something near that we suspect might have life don’t have enough power for us to think they can be received by an arbitrarily advanced civilization on the other end (assuming there is that happens to be listening when the signals arrive). And that is stars in our own subarm of the milky way.
Space is just bigger than you can imagine.
People get really disappointed when they learn that there could be an identical version of earth complete with humans and television orbiting around the nearest stars and we wouldn’t be able to detect them with our current monitoring abilities due to the amount of interference in space.