With the invention of Bitcoin, the idea of digital currency is slowly revolutionizing the Internet and the entire online mercantile system.
Each coin consists of an encryption code that is next to impossible to reproduce, and its mining and distribution is all tracked through the online peer-to-peer network. With almost 11 million currently in circulation, Bitcoin rules state that all mining will stop by the year 2140, with around 21 million in circulation. Many online merchants accept Bitcoin, and it is slowly making its way into the physical world as acceptable currency.
With digital currency becoming more popular in everyday use, physical cash and coins may one day become completely obsolete, and software applications to help people manage their bitcoins will become increasingly necessary and vital to the mercantile industry.