The earth is just an experiment, nothing more than a zoo with it's inhabitants made just to observe & mine precious resources like gold, silver & copper. The moon is a hollow observation deck. We never actually left earth, we are just let known true reality through movies to desensitise us if we are to join intergalactic society. A few long loving Alien shape shifting creatures try direct yet not influence humans as it's illegal to achieve this goal. Normal people can tune into the astral realm just like other higher creatures because we were spliced with their dna but we are nerfed to keep us in control so we don't destroy the experiment, resource & ourselves.