Yeah, this is neat but not a good explanation for how ancient stones were moved, many of which do not have shapes particularly conducive to rolling, including t

Yeah, this is neat but not a good explanation for how ancient stones were moved, many of which do not have shapes particularly conducive to rolling, including the moai of Easter Island. The article also talks about using varying densities of concrete to control the center of gravity which wouldn't really have been an option when carving from rock. It's hard to see how this technique would apply to the very rectangular 800 tonne trilithons at Baalbek or the 1000 tonne statue at the Ramesseum, or even the 70 tonne underground sarcophagi at Saqqara.