UP UNTIL NOW, a centralized company has been the best way to create a network that solves a large need: Uber connected riders with drivers, banks connected savers with borrowers, and Twitter connected content writers with content consumers. But thanks to the invention of the blockchain, we will no longer need central companies to act as the middleman. The business models of the future will be software protocols developed, governed and owned by the communities they support.

This is exactly what decentralized digital currency...