Actually, Mark Black, that is what I do believe.
In an infinitely dimensioned space (or one so large it may as well be), I must assume nearly infinite probability as there is nearly infinite space and time for it to exist in. Upon this logic, some-where, some-when there is a flat planet flying about that the people believes is round... and tomorrow an explorer falls off the edge sailing west.
Also, you mistake the concept of Alien, as I meant as implied, Entity. In an nearly infinitely dimensioned space, and the probabilities there-in, the concept of a being or entity that would pocess prowesses and modes of travel that we could not comprehend would very surely have to exist. Oddly the concept of Angels arriving in flaming chariots from the sky seems, atleast by Occum's Razor that you had brought up, to be a mis-representation of a real act. As the existence of Rameses, Moses, 'Jesus', and other such biblical figures have been archaeologically proven to exist, even accepted by neigh-sayers, we can assume that they were making an attempt at explaining things that they truly saw. Incidently, the correlations between biblical myth and modern day technology is almost blatant enough to give you a black eye, let alone how an even more advanced species would have been misconstrued by a highly imaginative species... us. God may simply be the commander of a ship who, by random chance, have discovered what we are very near to... physical immortality. In the early bible they say that man walked with God... litterally. There was no biblical prowess or real power given to 'God' in the first few books... only things that can be easily attributed to technology.
What you are suggesting is that in ancient times, nearly 1/10th of the population of the world had a mass hallucination, including the many Pharohs who documented these things. Today, one out of every 3 individuals have seen something in the sky that they cannot, for the life of them, explain. Your usage of Occum's Razor, to explain that nearly 4 billion people are hallucinating the same things, doesnt seem to fit.
Am I saying that Christianity or Christian perspective on, really, anything is correct?
No.
Am I saying that to dismiss a phenomena that has existed since the dawn of mankind, I.E. Gods, out of hand because you cannot see it is half imbecilic?
Yes.
In a light spectrum that ranges from below 30 HZ to over 2.9 * 10^27 HZ, we see between 400nm and 700nm of this. We are half blind, wearing a blindfold and beer goggles, in a basement, and trying to say that we can disprove it because we cannot see it? How infantile.
DISCLAIMER: THIS DOCUMENT does not cover all individuals in the infinite and variable universe. This is in no way is speaking on cases of incredible, random, or odds of more than 1 : Pi against probability.