If all of the troubles of the world were abolished, I think the world would cease to exist. Because if you got rid of all the current problems of the world, more problems would arise, like if you stopped burying toxic waste, where would you place it? Or if you stopped clear cutting, then where would we get our supply of wood? So, in my opinion, a "Perfect World" doesn't exist, because as I explained, new problems are caused by current problems.