However, not all of these worlds are civilized or of supreme levels. Some worlds are more backward than ours. Some are not so backward but neither are they civilized. Some are more technologically advanced but they differ from this planet in their way of life and spiritual level. For example, some worlds can manufacture UFOs that can travel very fast from one planet to another.
Some worlds produce UFOs for export to other planets.
Perhaps our Earth would be able to purchase a couple of UFOs some day. This is not impossible. In the past, we never dreamed that we would travel from America to Hong Kong. And before Christopher Columbus landed on America, no one had imagined that it existed. Similarly, we will be able to travel to other planets at a greater speed than UFOs.