Digital cryptocurrency must meet the following two non-technical principles: 1. One person has one share of the currency and everyone is equal = everyone is the issuer, owner and user of the currency. 2. Additional currency issuance = total retail sales of consumer goods. Total currency issuance = total initial issuance (initial issuance per person × total number of people) + total retail sales of consumer goods. In the above, except that each person's initial issuance is an artificial constant (such as 3,000 currency units), the others are all variables of the development of human society. Above, the following matters have been established: 1. People, that is, consumers, are the main body, the anchor of money, and the visible “hand”. Producers serve people, namely consumers, not the other way around. 2. Currency is the evidence for people, that is, consumers, to judge the value of goods and services provided by producers. 3. Producers provide goods and services and receive currency payments from consumers, which is a market economy. The money producers receive is wage profit. The wages and profits of producers on the production side = the expenses, costs, and monetary expenditures of consumers on the consumption side. 4. The flow of money is one-way: people are consumers→→→money→→→producers. The flow of goods and services is opposite to the flow of money: producers→→→goods and services→→→consumers. 5. People, that is, consumers and producers, have different personalities. People are consumers not producers. People, consumers, can be producers or not. 6. People, that is, consumers, are born equal. Currency issuance (additional issuance) comes out of nothing, and everyone is equal at the same time.