re: For people who don't believe Egyptians could build pyramids

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Don’t you think if we had a physics based way to efficiently move tons of stone in such a way we would invest in that as opposed to fossil fuel use?

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Again though, you’re trying to solve an ancient problem through a modern lens. We don’t have a need anywhere on the planet for a 30 ton slab of granite to build anything. Without a need, there isn’t a solution. If the need suddenly arose and civilization suddenly depended upon the need for massive stone blocks for survival, society would figure out how to move them, and how to manipulate them to serve their purpose. Maybe it’s something as simple as cutting stone block, then fashioning them to roll to the job site and then fashioning them again into block form. Everyone just assumes they cut these large stones into shape a hundred miles away and then hauled them into place. Even now, material such as lumber, tile, gutters, plywood or whatever is cut and shaped on the job site.