Normal cryptocurrency is a code-based asset created to work as a medium of exchange. New crypto-coins can be created through mining. Everyone is able to get involved if they have a a computer. Mining requires a large amount of time and electrical energy, however. A high-powered computer is also needed, to mine effectively. However, XRP is a centralised coin, which is unmineable. A limited amount of tokens were created by the company and this limit will not be exceeded.