I'm in the rabbit hole of YouTube space videos right now and it's just insane,. absolutely insane the scale of the universe. Like our radio bubble from earth ever since we started broadcasting is so small compared. Basically just 218 light years away from. Beyond that the signal simply hadn't had enough time to travel..the milkyway is 52,000 light years across. So even another intelligent life form in our own Galaxy wouldn't even know we exist for possibly another 50,000+ years. Not to mention you need to wait another 50k to send a message back.

And that's just our own Galaxy.