Nonsense and fantasies.
We launched Voyager in 1977. It took until 2012 to reach the outer edge of our solar system. A full 35 years. Round trip just to the edge of our solar system would take 70 years. It will take Voyager 40,000 years more in interstellar space to reach the next solar system.
Any other life forms would be bound by the same physical restrictions of time, space and gravity that humans are, no matter how advanced their civilization or technical capabilities may be.
Additionally, humans very much need the gravitational pull of earth to keep their bodies intact. Any length of time on the International Space Station requires several weeks of quarantine to regain their gravitational normalcy.
For better or worse, humanity is stuck with permanent residence on Mother Earth, no matter how intriguing Star Trek Conventions may be.
We are the only creatures that we know of that have the intelligence to understand this, nobody else.
This is what the bible means when it says we are made in the image of God.
Not because we look like God, but because we are the only creatures in the known universe that understands that there is a God.
Perhaps extraterrestrials have figured out how to transit great distances in space by utilizing wormholes or Einstein-Rosen bridges.
So our current physics/math etc. is all there is. There is no other learning that happened 10,000 20,000 years ago on other planets?Yeah right.