Why was ancient Egyptian culture so "consistent"? A layperson would have a hard time distinguishing between eras which are two thousand years apart, despite civil wars, famines, religious crises, and occupations. Was it Egypt's unique geography, its civil service (like China's?) or something else?

by simiansecurities
Bentresh

There's always more to be said on the topic, but I discussed this in Ancient Egypt is often described as the longest continuous human civilization, and seems to have maintained a surprising amount of cultural continuity. How accurate is this description? If so why were they able to maintain continuity so much more than other civilizations?