Do you think there's compelling reason to believe that ancient civilizations encountered extraterrestrials in order to accomplish the engineering feats they did? Specifically, the great pyramids, the precision of certain stonework and the sheer size of the stones they were able to move at numerous different places around the world. Also, could some religious texts be misinterpreted encounters with extraterrestrial beings? Just interested what people think possible explanations could be for how such architecture was created thousands of years ago?
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