My conclusion is simply : An new dynasty took over the previous one by inhumane war, killing its innocent people by number of millions and even billions. This type of tragedy repeated itself over the past thousands of years, and I believe it is going to continue occur in the future. The Chinese are too smart in many ways - in the past and present - , but when it comes to govern its people, each group of power-hungry idiots only know that the only solution is by killing its opponents till the last one. Whoever wins will again become another autocracy regime until the day comes when another group do the same thing to overthrow them.