Cryptocurrency – a breakthrough or a sellout

Cryptocurrencies regarded by one sceptic as “ a bubble, a Ponzi scheme and an environmental disaster” and by Jay Powell of the Fed Reserve as  “vehicles for speculation” took one step out of the shadows into the mainstream with the arrival this week on the stock market of Coinbase, the world’s largest cryptoasset trading platform.  Purists see the market listing as a brazen sellout, forsaking crypto’s true principles for the golden goose offered by W