>>19392432No, we're dealing with forgotten advanced mud-bricks, as well as large natural granite blocks from up, but not down the nile (likely lifted up into place by driving in wooden wedges). nothing more, nothing less.
This does not rule out forgotten civilizations, e.g. richat structure Atlantis, but it isn't proof of technology more advanced than available today.
https://www.youtube.com/watch?v=znQk_yBHre4 