In December 2020, the World Economic Forum reported that “cryptocurrencies have reached a point of inevitability”. In some business circles, the hype has been enormous with Jack Dorsey, the CEO of Twitter, having predicted that, “the internet will have a single currency. I personally believe that it will be Bitcoin.” The facts appear to be bearing out at least the former view: in the last six months, the price of Bitcoin has risen from a low of US$18,137 to a high of over US$63,000; Mastercard has announced it will start accepting crypto payments on its network; Tesla has indicated it may price its cars in cryptocurrency; and the US government seized more than US$1 billion worth of Bitcoin in enforcement actions related to the defunct darknet marketplace, Silk Road.