fuser wrote:^ Nonsense. This theory of an unified China meant lack of incentive for innovation (mostly because of lack of wars) is not very sound one.
The setback of China was first and foremost the result of a military defeat and being often at war is
of course essential to be good at war.
During the decades before your fall, China suffered a streak of defeats. First of all because you were technologically backward on the military side, which is different from the general technological level. After many defeats you finally bought us some weapons and replicated them. However technology is not everything. Military assets, experience, strategies, preparation, etc. All of this is necessary. A war does not last long, you need to be prepared to win at any time, you can't adapt during a war no matter how capable your civilization.
If you had been at war more often against stronger and more diverse opponents you would have realized your
obvious weakness: your ridiculous naval forces. You were defeated by mobility, you found yourself wasting weeks moving troops through China and three days before you arrived your enemies had left and were occupying another city you left undefended. You had larger armies, you were on your ground, you copied our weapons, even some strategies, but the battlefield was always elsewhere.
Now there is another reason behind your naval weakness: China always struggled with its own territory and resorted to isolationism to maintain civil order. You explicitly discouraged colonization and exploration, limited foreign trade, and let others grab the low-hanging colonial fruits that let them rival the Chinese territory. Ironically isolationism is still something you do today, to a lesser extent, for the same political reasons.