Bitcoin: is it a bubble waiting to burst or a good investment?

Disciples of the cryptocurrency plan to hold on for dear life but traditional finance is getting twitchy

Bitcoin is the fastest-growing asset in the world this year, but the virtual currency does not appear to have many users in London’s tech district. It has been more than a month since bitcoin was used to buy a flat white or craft beer sold at the Old Shoreditch Station, according to the hospitality manager at the east London bar.