Prosperity without growth. Only possible if money has a half life. This slow devaluation of money over time would allow stable prices, growth and more granular control of the economy. This kind of money could be electronic and only minted by the fed as FED-COIN. The blockchain would be essential in tracking and controlling each fedcoin. An interesting solution might be for the fed to give fed coin to people as a UBI(Universal basic income). Of course once the fedcoin is spent(undergoes a transaction) it’s value would freeze. the seller of a product would then have regular money. The current mode of the fed being limited to repo operations is blunt. Direct involvement of the fed with the public would allow more direct management of the economy. In addition fedcoin would traceable (anti crime), taxable, and controllable(it might have no value for example in trade for gambling, cigarettes alcohol or other items that are unhealthy)