@ensapa, this is rather interesting and thank you for sharing.
Has anyone here watched the "Ancient Aliens" series? Many of the arguments revolve around that the Christian God is indeed alien who decent from the sky (as depicted in many diagrams of ancient civilizations). Mostly from spaceship.
Also, there are many structures like pyramids, Stonehenge, etc which the technology is too advanced for human civilization. Specially the pyramids, how did they build such structure with the technology available at that time, and also there are many heavy tombs in the pyramids, how did they move it?
Also, the universe is so big.. how arrogant are we to say that we are the ONLY one in this universe??