He kind of rewrote history in writing this. One example, Guild Master and Journeyman were not in conflict. He benefited from the training he received as an apprentice, then when he produced a masterpiece, he would be a full member of the guild(a master). Also, Communism, true communism, has existed and continues to exist, but not based off of the teaching of Karl Marx. It is based off of the teachings of a man named Jesus. The Early Church lived communally, as did medieval towns, as did (and continue to live) Monasteries and convents by entering them by free will, ennobling labor, giving everyone the same labor with no one above it, and believing in someone above them(all of them) to strive for. Without that, people have no reason to give up conflict and share.