Tranquility Base:
C14 is partially calibrated and due to (i) the errors in Egyptology and (ii) effects of acclerated decay on C14 we believe that most human civilization events 4000BC-2500BC can be compressed into 2500BC-2000BC.
Your revised chronology for Egypt, as RickJB noted, doesn't help you. And you still have to explain how Egyptian civilization could establish itself on a river delta before the Mediterranean Sea had even formed.
You have more ancient cultures to account for than just Egypt. A revised chronology there carries little significance for the events I mentioned in east Asia. And this part of the world presents huge geological problems for you.
Never mind China or Japan and
those long histories. Let's look at India.
The Indian crustal plate separated from Madagascar in the late Mesozoic (Cretaceous Period) and moved quickly north to collide with the Eurasian continent. The Indus Valley, of course, is home to one of the world's great ancient civilizations.
You insist on the compression of all this into a blindingly brief span of time. In a matter of generations, India has to fly north from a spot much further south, slam into Eurasia to spark a crust-cracking fury of mountain formation, yet function--despite that nuclear holocaust level of upheaval--as a place friendly to human settlement, agriculture, and trade.
If India and Eurasia had collided at those speeds a mere 4,500 years ago, it's the last real estate on earth where one would look for ancient cultures today. Mount Everest would still be belching lava. The earthquakes would be rattling your desk in Australia.
Have you considered changing your handle to
Catastrophe Base?
.
Edited by Archer Opterix, : HTML.
Archer
All species are transitional.