This is a cool story, thanks for posting.

Personally I think we know about as much about ancient Egypt and Egyptians as we do about Ai - not a lot. I was in Egypt for three weeks on honeymoon more than twenty years ago, but still a senior Engineer by then. We spent a lot of time visiting the pyramids and other artifacts, The Engineering of the pyramids and other things blew me away. I was taught on CNC machining as well as a lot of other manufacturing things and already had fair experience of companies using it and designing for it, so knowing its capabiliites. Now we have 3D printers, but to me the pyramids had to be constructed by some much more impressive machines. There is no way we can sensibly compute the manpower and time it was said to have taken to construct the pyramids. In a discussion with ChatGPT, it informed that our research has it that the faces of the stones of the pyramids were cut with copper blades. The researchers establishing had no industrial experience, they were academic researchers, but they apparently surmised this was how it had to have been done, given what they knew of what technology was available at the time. They further surmised these very long copper blades had to be drawn back and forth manually, although they could not replicate the manual action in the lab, so they improvised with a moter driven rig. No description of motor power capability was given by the experimenters. They cut through a block of granite measuring 0.5m x 1m in a number of hours, I can't recall the exact time it took, several days, but chatGPT took this time from the research paper and extrapolated it to compute the time it would take to cut through all the faces of the stones of the great pyramid at similar rates per cross sectional area. It deduced more than 2000 years. Yes there could have been many folk involved in the pulling back and forth but remember the lab used a motor, and the section tested was only a fraction of the size of each face on a typical stone in the great pyramid. Add to this all of the faces cut in the pyramid are done so mirror flat, sometimes with complementary steps and keys in adjoining faces, there literally is no way on Earth humans could have manually did that. Remember also there are many pyramids, the great Pyramid was just the biggest. When we realise the impossibility of that, as seemed obvious to me when I visited, we start to notice all the other impossibilities, there are many, Then we start to wonder why we have it so wrong, what drives this misinformation? Personally I believe it is profit, the same thing blinding us now to the only way out of the global energy problem, even whiilst the planet is starting to literally burn.