Bitcoin boosters promised that the digital currency would change the world. In a sense, it just might, as the technology underlying it goes mainstream. Ben Judge reports.
Last week, fans of the cryptocurrency bitcoin celebrated a landmark event. On Thursday 2 March, the price of a single bitcoin ($1,268) rose above that of a troy ounce of gold ($1,233) for the first time. In practical terms it doesn’t mean much, but it’s a potent symbol of the high hopes [...]