Interesting concept. I actually have a theory that the next stage of crypto currencies will have this "sort of thing" built in. An idea I've had recently is t

Interesting concept. I actually have a theory that the next stage of crypto currencies will have this "sort of thing" built in. An idea I've had recently is that I want a cryptocurrency where each user has his own blockchain. In other words, no universal ledger of all transactions on the system. The other important concept is that (not saying I have all the answers) each person is free to spend his / her currency as they please. No "mining". But the "ledger" can be synchronized with what may resemble "FOREX markets" but the point of these markets isn't to allow you to trade other currencies on other block chains, but it's to help determine what that individual's currency is worth. If done right, then theoretically the person(s) who are right in the middle of the bell curve have the most valuable currency, and those at least one or more standard deviations from the center have less value. The catch is that those people who you transact business / exchange currencies with, the "currency markets" will generate the exchange rate and convert the money into your currency units. Theoretically the "currency markets", there would be many of them, and likely there could be many within a geographic area comparable in size to a U.S. County. Ultimately the overarching goal would be that those who spend too much or too little will ultimately pay the price with a loss in currency value. I think one of the keys here will be to try to create a set of checks and balances to help ensure people can't just create tons of accounts, and start using them all. So perhaps a concept of "type" of transaction will be important. For example, the blockchain shows how much the individual spends on "housing", "food", etc...