Bitcoin soars above $20,000 mark

The value of bitcoin has shot up to 20,000 US dollars, double the milestone 10k mark it hit in late November.

The cryptocurrency has surged in value once again, having doubled its value over the past three weeks and reached over twenty times its worth a year ago. This is despite a number of crashes along the way, from which it has bounced back dramatically. Bitcoin's seemingly unstoppable growth has excited investors, all the while some financial experts have continued to warn of a bubble that will inevitably burst.

A recent survey of 53 economists carried out by the Wall Street Journal found that 51 of them considered bitcoin's price unsustainable, whereas a survey of Wall Street experts and market strategists by CNBC saw bitcoin's rise as a bubble.

Despite bitcoin's notorious volatility, there seems to be growing use and acceptance of the cryptocurrency in the ...