https://www.theguardian.com/technology/2017/nov/29/bitcoin-world-economy-bank-of-england-jon-cunliffe-price >Sir Jon Cunliffe’s comments come amid fears of bubble as cryptocurrency’s price passes the $10,000 barrier >Bitcoin is too small to pose a risk to the global economy, according to a senior Bank of England executive, as the cryptocurrency passed the $10,000 barrier for the first time.