The tv series is full of wild ideas....
Ancient Alien theorists believe, based on some compelling evidence, that for thousands of years we've been visited by extraterrestrial beings, and that many of our advancements (leaps) in science, physics, etc. were a result of being taught these things by such beings at various times in our historical past. IE, the Mayans, ancient Egyptians, etc. They go on to propose that much of our established beliefs about god and religion are based on ancient visitiations by highly- advanced alien beings (who routinely were desribed as descending from the heavens). Furthermore, it is believed that the ancient ET's actually spread their DNA into our race, and that the immaculate conception of Mary was actually from an extraterrestrial (yes, that Jesus himself was an Alien/human). The theorists also propose that the Ark of the Covenent actually contains ancient alien power, perhaps a radioactive power of some kind). This is all just the tip of the iceberg - the series offers some fascinating theories as to the "truth" of our past.
Does any of this sound reasonable to you?
I'm by nature skeptical of everything. LOL
We don't need no stinking radioactive power...we have our own!