Hmmm, the problem with that theory is the engineering tolerances of the internal cuts and perfection of the drilled holes. No amount of time, effort, craftsmanship and luck could ever achieve this with the tools available to the alleged builders, especially when consider that were not talking sandstone either. No mate something else occurred here. There are many examples of ancient stonework and edifices which show the amazing skill of masons in the past however this is off the charts by comparison.