There are a lot of interesting things happening. I think there are other intelligent beings (both physical and non-physical), I think they have been here all along. I don't believe that they have travelled from some far away galaxy though.
Discussion
I agree on the existence of intelligent physical and non-physical beings but if you look into the #UFO phenomena, it’s clear that technologies presenting capabilities way beyond ours are real. If you come to this realization, it isn’t much of a stretch to entertain the idea that some have mastered space travel.