One theory is as good as the next. Lack of scientific proof cannot make an absolute argument for or against any particular theory. With lack of scientific evidence, logical and practical possibilities should give way to the most reasonable explanations. With conventional concepts of what could or couldn't be accomplished physically even by today's standards, let alone the capabilities of those thousands of years ago... How can great structures be built, and by what methods? Scientific theory suggests thousands of workers laboring 20-30 years to accomplish building ancient structures, but can not answer the weight issues for moving 200 ton stones (largest 400 tons), or how precisely they were placed as to not even let a piece of paper to be slid between them. And why would ancient man, despite physical limitations, choose the hardest way possible to build structures. There has to be knowledge and capabilities that have been lost to time. Scientific knowledge and understanding that is limited to what is known today... What will increased knowledge and understanding in the future change in the world of possibilities? And change what we thought we knew about the past. Gods from the heavens? Makes you wonder. Thousands of years of beliefs and understanding, as interpreted by man, forms the basis for religions and an understanding of the practical world we live in. What if there was more to the story. And will we know it in our lifetime? There has to be more than the explanations of current scientific thinking. More to the stories and interpretations of ancient religious writings and accounts. All too many structures, artifacts, and accounts remain unexplained by scientific understanding or reasoning with respect to current knowledge. What will future knowledge reveal? Perhaps this is merely something to ponder in the early morning hours where the mind is clear of distractions. Gotta go... I smell bacon! Later.