Except, the Egyptian society was quite stable for 3,000 years. Can you imagine the USA existing for 3,000 years? Will there ever be another human civilization that lasts as long as the ancient Egyptian civilization?
Fall of Civilizations Episode 18. Egypt - Fall of the Pharaohs
Imagine back when Europe was under the thumb of the Roman Catholic church, but then it went on pretty much the same for 3,000 years. There would be some hiccups along the way, but for the normal peasant, it would pretty much be the same old same old from millennium to millennium.