The problem is, when you get to discussions of Egyptian precision stone-work....then you get drawn to the same issue in Central/South America, Angkor wat, and several examples in India.
Then the discussion has to revolve around these stone-masons sharing their knowledge and skill around the globe. No one wants to go into that direction.
Exactly.
But my hope is that a discussion can be restricted setting aside the world outside for the time being. I have that very problem in my own mind but am trying to concentrate on ancient precision stonework in Egypt
People can discover things on their own. Just because these masons were half a world away doesn’t mean they were incapable of creating their own techniques.