If there were already a fully identified digital money system,
Is there one? I don't think there is any digital money system at all, neither anonymous nor fuly identified. There certainly are digital funds transfer systems, almost all fully identified. These are not digital money systems, although they may be precursors. Eric, for the last three months, you have said that there was no way to prove whether digital cash was more cost effective than other forms of e$, and thus potential efficiency was useless as an economic argument for its adoption. I still agree that you cannot really _prove_ that it will be more efficiently, at least not from armchair business planning. Given a few million for a good study though, I'm sure answers might be forthcoming. What is apparent, however, is that it is certainly reasonable to examine the possibility that digital cash might be cheaper to implement. Eric