True...but with 100 Billion planets in the Milky Way we should be picking up something...seems odd to me.
But space is HUGE. Our earliest radio signals, if they were strong enough to travel in space, which they weren’t, would have covered about 1% of the Milky Way. And again once they hit an area they were gone, if that planet didn’t invent radios until the next day, too late. And of course you have to remember the reply takes time too. IF somebody got our signal say 25 years ago, and sent a reply, it’s still close to 75 years from getting back to us.
The likelihood of us recognizing it as communication is pretty low.
The likelihood of us recognizing it as communication is pretty low.