>>My "guess" is the Ancient Egyptians built the pyramids consistent with the tools and engineering we know they possessed.<<
So every time we uncover new tools that they used the reality of how they built their pyramid changes. Thus it’s like a butterfly affect but with no time barriers. One day an Egyptologist digs up a chisel and wham! the past universe space-time coordinates change automatically so as to fit in with his discovery.

>>But my guess is a logical conclusion based on recoverd artifacts and writings. These artifacts include copper chisels, copper manual impact drills, copper saws with sand as the abrasive, smoothing stones, cubit rods, and some elementary math written in papyri.<<
My guess is a logical conclusion based on recovered artefacts and writings. These artefacts include distance/dimension/angle surveys of ancient architecture, probability/statistics analysis, mythology and arithmetic analysis of key names and words, and using aspects of ancient plans to predict things like where an unknown ancient site is or an unknown celestial body is. All the tools you refer to help us understand how they physically built the pyramids, but it does not explain why, how, and who designed them.

>>In my humble opinion construction did NOT include;
Spaceships, ancient vanished civilizations, lost advanced sciences, forgotten machinery, advanced computing, direct contact with aliens. 12,0100 year old hidden agendas, or any of that fringe stuff.<<
Yes but that’s just your opinion, as mines is that it did include some of that stuff. The only difference is that I can prove it.

>>PS; Might I assume you might find the statement "The Greeks couldn't have built their civilization without external aid, they were too primitive" insulting.
Why would the Egyptians be any less insulted?<<
Politics have nothing to do with science. Iamatic Platonic lies are not compatible with scientific procedure. Thus it matters not who is insulted by the truth since it exists independently of our feelings.