How would the world look like in say 200 years from now? 
 What I envision will happen in the future, say, in a 100 years is that we will have a world with all self sustaining technology. We will be harnessing power easily from abundant natural resources inside and outside of the solar system. All work will be automated and done by machines. Human labor will not be required anymore, be it in the factories or service industry or even in the medical fields. The elite class or the top 1% rich in the world will own all of the corporations and run it. They will not need the rest of the 99% of people in the world as they do will not require their services to run factories and corporations and make them profitable. The elite will see them including any existing forms of their government as a liability. There would be absolutely no functioning government in any part of the world and access to the elite cities or areas will be cut off from the rest of the population. The only people saved would be famous artists or athletes or anyone with creative skills. Rest of the people will be left to fend for themselves and all the progress made as a civilized society will be lost. Whomever is able to survive will set up small communities and continue life. But life will be hard for lack of food and medical care. Some communities may attempt to take out the elite cities but will fail. Eventually the 99% would perish after a few hundred years. The elites will have problems of their own like fights between corporations. But almost all of them will survive for generations and several thousands of years until some catastrophic event wipes them all out be it an alien invasion or something from natural causes.