Two secrets. Debits and Credits of equal amounts sum to zero and the pricing, money and accounting systems are all digital.

When you combine the fact that retail sale is both the very end of the entire economic process, in other words where production become consumption, and also the point where all costs and so prices for every item or service are also terminally summed, with the fact that debits and credits of equal amounts sum to 0….you understand the new paradigm in economics and money systems.