A cryptocurrency guide in simple English While the world is watching. Bitcoin’s ownership has been shrouded in secrecy, but the concept is anything but. What is Bitcoin and how does it relate to cash flow? Is it a passing fad or is it here to stay? Will it go big before it goes bust? Understand some of the terminology and process behind the conversation. Crash or currency? Bitcoin started as a hacker’s method of payment and has evolved into a new form of digital currency.