No sign of intelligent life:
https://www.digitalmunition.me/massive-search-for-alien-technology-in-10-million-star-systems-finds-no-signals/
Are we looking for "smoke signals"aka; RF communication signals originating from alien civilizations?
The universe has been around much longer than the human species,plenty of civilizations have probably advanced to the point that RF is as ancient to their technology as smoke signals would seem to us.
They may be using entanglement to communicate across the vast distances of the universe.We don't know how now,but we may learn someday.
If aliens have visited our planet,why would they want to stop and communicate with such a primitive society? They may pass through as tourists,and look out at the primitive culture we have;Always fighting somewhere on the planet,from microscopic creatures all the way up the food chain to the top.
We are in the rural outskirts of the galaxy for a reason:to prevent our infecting the rest of the galaxy until we are intelligent enough to live peacefully among ourselves.By the time we develop the skills and knowledge to travel across the galaxy,perhaps we will be intelligent enough to fit in with the really intelligent species.
Tour guide: "No intelligent life forms found here,lets move on.."
"Almost" Good Answers: