That's fun, personally I like the concrete and ramp theories. https://www.geopolymer.org/archaeology/pyramids/are-pyramids-made-out-of-concrete-1/ https://www.

That's fun, personally I like the concrete and ramp theories. https://www.geopolymer.org/archaeology/pyramids/are-pyramids-made-out-of-concrete-1/ https://www.geopolymer.org/archaeology/pyramids/are-pyramids... https://www.youtube.com/watch?v=lasCXujNPfs https://www.youtube.com/watch?v=lasCXujNPfs