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Blockchain: How important will blockchain be to the world’s economy? – FutureTechRumors
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Blockchain: How important will blockchain be to the world’s economy?

Blockchain:

Blockchain: Glasses of Long Island Iced TeaImage copyright
Getty Images

The Long Island Iced Tea Company, as its name suggests, was in the business of selling beverages. And not as many as it might have liked: it lost nearly $4m (£3.2m) in the third quarter of 2017.

Then the company announced that it would henceforth be known as the Long Blockchain Corporation. Would it stop selling beverages? No. Would it sell beverages using blockchain? Maybe. It would do something to do with blockchain. Maybe. Probably.

The details were hazy, but that did not stop investors getting excited.

What is blockchain? And what does it have to do with Long Island Iced Tea?

Blockchain is the technology which underpins Bitcoin and other digital currencies. It is a database of financial transactions which is saved on multiple computers and which constantly grows as new transactions or “blocks” are added to it, forming a continuous and public chain of data.

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Media captionKarishma Vaswani takes a look at blockchain and explains how it works

Blockchain may still be in its infancy, but venture capitalists are already pouring billions into start-ups with more clearly defined plans than the Long Island Iced Tea Company’s. Even Facebook is getting involved.

And billions more are being raised in the regulatory grey area of initial coin offerings, where companies raise money by selling digital currency to investors.

Enthusiasts say blockchain could become as disruptive as the internet, comparing the technology to the World Wide Web in the 1990s. At that time, many people were clear it would become important – but few really understood it, or foresaw its potential and limitations.

So what problem is blockchain trying to solve, and should we believe the hype?

50 Things That Made the Modern Economy highlights the inventions, ideas and innovations that helped create the economic world.

It is broadcast on the BBC World Service. You can find more information about the programme’s sources and listen to all the episodes online or subscribe to the programme podcast.

Let’s start with a deceptively simple question: what stops me from spending the same money twice?

When money meant physical tokens, it was easy. I can’t give the same one to two different people. But long ago we realised that lugging coins around is no way to run an economy. It is easier to trust third parties to keep records of who has got what.

You give me goods, and I instruct the record keepers to shuffle their numbers accordingly.

Image copyright
National Archives

Image caption

Tally sticks were used to record financial debts as far back as the 13th Century

How do you know I have not given the same money to someone else? You trust the bank, or MasterCard, or PayPal, to guarantee that cannot happen – because their systems will not allow it.

But there can be drawbacks.

These third parties – intermediaries – need paying. And the more retailers who use a service such as MasterCard, the more attractive it is to customers. The more customers who use it, the more attractive it is to retailers. This is known as a “network effect”.

It can make these intermediaries very powerful. If they fail, the whole system collapses.

What if we didn’t need them? What if the financial records which lubricate the global economy could somehow be communally owned and maintained?

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Getty Images

In 2008, someone using the pseudonym Satoshi Nakamoto proposed a new kind of money: Bitcoin. Transactions would be verified not by a trusted third party like a bank or credit card provider, but by a network of computers solving cryptographic puzzles.

And as long as enough people chipped in computing power to check the solution, nobody would be able to fake the records or carry out fraudulent transactions. And individuals were incentivised to donate that power by the promise of Bitcoin rewards.

It was ingenious. And people soon wondered whether blockchain, the technology making all this possible, could do more. It offered a completely new way for strangers to collaborate without needing to trust a centralised authority. We started to hear phrases like “transform everything” and “change the world”.

In theory, blockchain could help lower the costs of verifying transactions and creating new markets, whenever we trust a person or company to manage our information in ways which help us interact with each other.

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PA

Image caption

In a 2014 tweet, singer Lily Allen branded herself an “idiot” for turning down a bitcoin gig payment

What are Facebook, Uber and Amazon, for example, if not databases which use our information to help us interact? Might blockchain one day build new online models where we own our data, or perhaps sell our attention directly? Some think so.

Others are working on blockchains to track goods through supply chains, or intellectual property in the digital world; to make contracts quicker to administer, or voting systems more secure. You name it, somebody somewhere will be trying to put it on a blockchain.

But let’s be honest: most of us do not understand the nuts and bolts of these ideas. And even if we do, we cannot confidently envisage how they will play out in reality.

Blockchain: More Things That Made the Modern Economy:

Predictably, the combination of intense buzz and hard-to-grasp technology has meant some people have not thought as critically as perhaps they should.

Like those who rushed to buy shares in a loss-making drinks company when it puts the word “blockchain” in its name. Or who bid up the total value of “DogeCoin” – a joke Bitcoin rival – to more than $2bn

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