How to understand how they built the pyramids,

The stones with bamboo floats were sent by the usual mail, the Nile and its water all the way up to the pyramid's "roof" where there was a basin, and the stone could be pulled to the right place immediately. They had big circular saws. I was reading about marks of it in the 2nd pyramid. There are harder metals than diamond, coming on anyway. To build pyramids was a fine work and no one used money. That is kolopilopi.