There are a few problems with your conclusions which perfectly highlight why the pyramids are such a mystery. > I thought the "air holes" were supposed to be a

There are a few problems with your conclusions which perfectly highlight why the pyramids are such a mystery. > I thought the "air holes" were supposed to be a way to fill the cavities with sand, after it was all sealed. Grave robbers would have had to shovel it all out before they could get anywhere. None of the pyramids on the Giza plateau were graves. It is a myth that any bodies were found in those pyramids. > I like the notion that they had wooden pieces shaped like the chord of a circle, four pairs strapped on four sides of a block, and then the whole block could be rolled. (Apparently there are pictures of the things on tomb walls, misinterpreted as boats.) That only gets them to the base of the pyramid. There are roughly 2,500,000 blocks in the Great Pyramid with the quarries being hundreds of miles away. That means to build it in 20 years you would have to cut, move, and place a block every 4 minutes day and night without stopping. So very unlikely they rolled the blocks around. > Of course, the methods used could have changed radically even over the period of building a single pyramid. Doing something the hard way for a few years ought to motivate some cleverness. But other pyramids had been built, so methods were probably pretty mature. The most impressive pyramids (by far) on the Giza plateau are also the oldest. The pyramids got worse as they developed more of them, not better.