content: The question is if the economic model could of sustained itself. Their currency was labor-backed which allowed them to get around parasitic banking practices, but what happens when work slows? Maybe there is peace for too long, maybe there are social issues that cause it, etc. what then? You are either going to have to give up the social programs (which are a key part of the ideology), switch to another backing (gold for example), or force people to work harder at gunpoint (much like communists did to stop their economy from crashing).