When I was working on Eternity DDS stuff, I basically came to the same conclusion as Adam -- without anonymous bearer cash, you can't do a workable eternity implementation. It's an open question whether you could issue bearer cash backed in Eternity-units. That was my original plan, but it seems you would still want to have gold-units to trade for Eternity units. The problems of guaranteeing quality of service in exchange for Eternity units are complicated but tractable, but having a separate scheme for auditing performance. Where I think "political" schemes would be particularly beneficial is in sharing administrative control over a virtual corporation, etc. While those who believe Coase would believe corporations will devolve into individuals or even autonomous agents, it might be a worthwhile tool during the transition. As far as I can tell, having a good Eternity implementation is still blocked on getting a reasonable electronic cash system. There are some people in Anguilla...