Societies and nations is created by individual members. These members receive services from their societies and in turn they provide services to their societies. Money is used as a means of keeping a measure of the transaction between individuals and the societies they belong too. With the power of computing, it is possible to have a better more accurate measure of these transactions between an individual and their society. The measure is Time. So the time a person does some service for society (another person) becomes the money they earned. That is if A helps B for 2 hours then 2 hours is credited to A. A database keeps track of this.