Since its invention in 2008, Bitcoin, a digital currency system, has slowly gained acceptance in online circles. But Bitcoin is only part of a potential future where a freer economy leads to increased economic growth and more consumer choice. As one of the more popularly known decentralized digital currencies, Bitcoin is accepted as payment for real-world goods and services by companies such as Dell, DISH Network, Microsoft, Papa John’s Pizza, and Overstock.com. Exchanging otherwise unused spare processing cycles to verify and record other users’ payments in the shared public ledger, called a “blockchain,” for newly created Bitcoins and processing “fees,”...