When we give to one another, we should always give it back; so, that we have a “complete circuit of giving” that will last an eternity. This is the way that the universe was designed to work properly for a desired effect.
Now, see yourself all alone out in space; what would you do? Do you think you would be lonely? What would you long for or desire?
Humans came into existence in a predetermined and precise manner. We were designed, engineered and built for a specific purpose.
These advanced being-aliens are not from the future. Time travel for them and all beings, for that matter, is impossible regardless of the technology that they possess. Even God cannot time travel!
The only difference between a human being and natural space is the predesigned and engineered arrangement of particles with the direction of their orbits and the varying pressures they are under at any given time. If it had of been you that evolved first from natural space and you had the ability to manipulate the matter around you, what would you do with this power? How long would it be, how far would you have to evolve before you needed to see yourself, to define yourself and how would you do it?