However, I believe that there will be alien creatures in places far away from the earth that we cannot reach. The universe is so big that there will be habitable planets. But it may not be as advanced as science fiction says. Maybe some "aliens" have just started their primitive society.
There may be other time and space, but now, we can't go further in the same space, and the moon can't land after thousands of years. Even if there is such an outer space-time, what's the difference between us making peace?
Even if there are, don't think they are superior to us. Maybe they are just guessing something like us.
Hehe, we don't know the specific situation, so we can imagine it as we want.
Just as ancient people didn't understand many natural phenomena and thought there were ghosts and gods, there were also many stories about ghosts and gods. Maybe thousands of years later, our ideas about what black holes and UFOs will become superstitious stories.