Few technologies have the ability to stir passionate online debate and baffle the vast majority of the population as bitcoin. The virtual currency rocketed in value last year before crashing at the start of 2018.

But bitcoin appears here to stay, at least for the time being. Although the price has fallen since the start of the year to around $6,400 (£4,900), well below its peak of $20,000, it is still above its price a year ago and interest in it continues.

There have been spikes along the way, possibly caused by mass computer trading or short sellers jumping ship and encouraging buyers to flood back in.

It all leaves investors with a slew of questions. Is Bitcoin the future of currency? Is it currency at all? What is it for? And should I buy some? Read on to have your questions answered.

What is Bitcoin?

Bitcoin is a digital currency created in 2009 that uses decentralised technology for secure payments and storing money that doesn't require banks or people's names. It was announced on an email circular as a way to liberate money in a similar way to how the internet made information free.