[jpadkins]

The key to any good currency (and product) is how to get adoption. I don't think the paper addresses this point, it just assumes merchants will accept greshm like it accepts dollars. I don't think that will be true. If they are dollars, then they have to follow all the financial rules (against ponzi schemes and other types of fraud).

Also, I have my doubts on any currency system that is not connected to real wealth or real value in anyway. I think history has shown that these currencies end in hyperinflation.