Very intersting Indeed,

however this picture strikes me as strange:

https://forums.totalwar.org/vb/attac...2&d=1341341836

IF the guy on the far left is an egyptian(which can be found out by reading the inscription), why is he depicted in the EXACTLY same way as the ... Nubian? I mean I can see why he would have the same skintone and physiognomy, but surely not the same clothes and haircut.

And about pyramids: It's not as sudden as one may think, afterall Early pyramids clearly show a evolution from the Mastaba.