When the speculators flee, what will be left of Bitcoin?

The underlying currency might not work without the inflated prices.

Last week's post pointing out bubbly appearance of Bitcoin's market capitalisation sparked some kickback. That was to be expected; in any bubble, people who are currently exposed to the possibility of a crash are unlikely to take the news well. Bitcoin has even more die-hard defenders than most bubbles, though, because of the mixture of political and cultural factors which cause a lot of people to invest such hope in it.

Amongst the currency's fanbase – and the fact that a currency has a fanbase is itself notable – are libertarians who decry any government involvement in the free market, techno-utopians who love the idea of fully digital money, monetary hawks who like the fact that the success of bitcoin would basically end inflation, and, frankly, criminals who like a completely untraceable currency (I'm not implying that if you like an untraceable currency you must be a criminal, but there's no denying that Bitcoin is a big deal for sites like Silk Road), as well as your common-or-garden speculators. All of them (except maybe the criminals) have a bigger reason to hope for the success of Bitcoin than just financial: if it succeeds, it proves them right.

But I fear that there are very few arguments which can be made to prove the Bitcoin boom that we're seeing right now – which has resulted in a 250 per cent increase in the total value of the Bitcoin economy in just three months – isn't a bubble. The problem is that there is not really anything to point to in that time period to explain the massive increase, except the massive increase itself. So it may be comforting for Bitcoin fans that there is a Bitcoin hedge fund in Malta, but given that that hedge fund exists because of the boom, not the other way round, it doesn't explain anything.

In fact, in the last few months, there have been a few news events which ought, by rights, to reduce the value of the currency. Chief among them is the fact that the block chain – the distributed record of every Bitcoin transaction, and the technical underpinning of the entire things – forked earlier this month, something it should not be able to do.

A transaction was made using a new version of the software, which was too large for earlier versions to handle. As a result, some clients accepted it, while others rejected it, leaving two valid block chains circulating. Some users are pointing to the fact that the currency is still circulating largely unaffected as a sign of its strength, but that's a bit like saying that the fact that your plane is still flying after its engine exploded makes the explosion good news.

The best way to justify the exponential increase in the market capitalisation of Bitcoin would be to point to a similar exponential increase in people using the currency to perform their everyday lives, and that simply hasn't happened. Take-up is strong, but nowhere near the level it would need to be to explain a half-billion market cap. Whereas speculation – people buying Bitcoin low to sell high – does.

(Note too I'm not saying that the currency is a Ponzi scheme, an accusation often levelled at it over the fact that the first holders of bitcoin had the most to gain from talking it up to others and then selling high. A bubble isn't necessarily the same as a Ponzi scheme, even a bubble which is deliberately engineered to reward its first buyers, and I don't think Bitcoin has those characteristics.)

The natural price of Bitcoin is far, far lower than where it stands right now, probably around the same level it was last summer, after its first catastrophic crash and before its second. The real question for the currency isn't whether it can survive being an investment for speculators – it can't – but whether it can survive as a currency when valued at 10 per cent of what it is currently.

The problem it faces is that the distributed computing which lets Bitcoin work is expensive. It takes energy, and time, and frequently also specialised hardware. The reward for doing so – "mining", in the parlance – is a randomly allocated share of the new coins produced through inflation. As time goes on, the currency will produce less and less extra coins this way, but for now, the bigger fear is if the natural price for Bitcoin can go low enough that it no longer becomes efficient to run these mining rigs.

There are still ways of getting around that – the technology allows for the payment of what is essentially a processing fee on top of each transaction – but it may be the case that Bitcoin's use as a currency is currently being subsidised by its bubble-tastic value. Hopefully the two are separate enough that even after the crash, Bitcoin can continue to function as an alternative way to send money over the internet. But the more Bitcoin fans boost the bubble, the bigger the shock's going to be when it pops.

The Bitcoin logo.

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

Ukip's Nigel Farage and Paul Nuttall. Photo: Getty
Show Hide image

Is the general election 2017 the end of Ukip?

Ukip led the way to Brexit, but now the party is on less than 10 per cent in the polls. 

Ukip could be finished. Ukip has only ever had two MPs, but it held an outside influence on politics: without it, we’d probably never have had the EU referendum. But Brexit has turned Ukip into a single-issue party without an issue. Ukip’s sole remaining MP, Douglas Carswell, left the party in March 2017, and told Sky News’ Adam Boulton that there was “no point” to the party anymore. 

Not everyone in Ukip has given up, though: Nigel Farage told Peston on Sunday that Ukip “will survive”, and current leader Paul Nuttall will be contesting a seat this year. But Ukip is standing in fewer constituencies than last time thanks to a shortage of both money and people. Who benefits if Ukip is finished? It’s likely to be the Tories. 

Is Ukip finished? 

What are Ukip's poll ratings?

Ukip’s poll ratings peaked in June 2016 at 16 per cent. Since the leave campaign’s success, that has steadily declined so that Ukip is going into the 2017 general election on 4 per cent, according to the latest polls. If the polls can be trusted, that’s a serious collapse.

Can Ukip get anymore MPs?

In the 2015 general election Ukip contested nearly every seat and got 13 per cent of the vote, making it the third biggest party (although is only returned one MP). Now Ukip is reportedly struggling to find candidates and could stand in as few as 100 seats. Ukip leader Paul Nuttall will stand in Boston and Skegness, but both ex-leader Nigel Farage and donor Arron Banks have ruled themselves out of running this time.

How many members does Ukip have?

Ukip’s membership declined from 45,994 at the 2015 general election to 39,000 in 2016. That’s a worrying sign for any political party, which relies on grassroots memberships to put in the campaigning legwork.

What does Ukip's decline mean for Labour and the Conservatives? 

The rise of Ukip took votes from both the Conservatives and Labour, with a nationalist message that appealed to disaffected voters from both right and left. But the decline of Ukip only seems to be helping the Conservatives. Stephen Bush has written about how in Wales voting Ukip seems to have been a gateway drug for traditional Labour voters who are now backing the mainstream right; so the voters Ukip took from the Conservatives are reverting to the Conservatives, and the ones they took from Labour are transferring to the Conservatives too.

Ukip might be finished as an electoral force, but its influence on the rest of British politics will be felt for many years yet. 

0800 7318496