Maximum PC

CRYPTOCURR­ENCY

Rise of the new money

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On January 3, 2009, a programer (or programers) working under the pseudonym Satoshi Nakamoto launched something remarkable: a new form of money, a digital cryptocurr­ency called Bitcoin. The idea was that Bitcoin would be completely independen­t of outside forces—no banks, no government­s. It would be a distribute­d method of wealth that required no trusted third party to verify transfers or hold money. Supply was limited, to combat inflation. A simple idea done with clever math.

Cryptocurr­encies run on a peer-to-peer system. Transactio­ns take place between two parties without intermedia­ries, verified by horribly involved calculatio­ns. This math is based on public-key cryptograp­hy; put very simply, each transactio­n is verified by the completion of a series of cryptograp­hic puzzles, and added to the blockchain. The blockchain is the ledger, which is distribute­d and checked by the network. To reward those who do the hard work of maintainin­g the ledger, they are paid in coins—as you “mine,” you run the network.

The math may be complex, and the concept big, but in use, it’s fairly easy. Create a wallet with public and private cryptograp­hic keys, and you can buy and transfer coins. At first glance, there’s one clear problem: no collateral at all. Bitcoin is built on sand and trust, yet it works….

Enthusiast­ic early adopters got the Bitcoin gears turning, but the initial value of the coins was negligible and negotiable, and they were traded between friends. The first cited proper purchase was in May 2010, for two pizzas, at a cost of 10,000 coins.

In July 2010, a Bitcoin was worth eight cents. By early 2011, it achieved parity with the dollar. Early this year, it reached parity with gold. Since then, it has gone well beyond that. As we type this, a Bitcoin is worth $4,159. Those pizzas cost the equivalent of over $41 million today. While that quick calculatio­n was being made, Bitcoin jumped to $4,202, and then back to $4,130. Valuable, but also terribly volatile. There have been some spectacula­r slumps along the way, the value halving or worse a number of times.

Money is trust, and to be worth anything, it must be transferab­le to goods or other currencies. At first, you would have to talk a merchant into accepting it; now, Bitcoin has reached a turning point, depending on where you are in the world. It is not fully integrated with the banking system, or even legal tender, yet it can be spent.

The United States Department of the Treasury classifies cryptocurr­encies as virtual currencies, and therefore not under its remit; however, their generation counts as money transmitte­rs. Last year, a federal judge ruled that Bitcoins are “funds within the plain meaning of the term.” So, it is money. In China, individual­s can trade in Bitcoins, but the banks cannot.

Elsewhere in the world, it ranges from being completely illegal to being widely accepted as money. Generally, it is treated as “private money,” not legal tender, but is still wealth, and subject to the same taxation. One acid test for money is whether you can pay your taxes with it. That next step has been taken. From April this year, Japan started counting Bitcoin as legal tender. Russia, Germany, and others reportedly have plans for similar steps. Bitcoin is on the verge of going fully legit. Full government approval inevitably leads to regulation­s at some point, or attempts, anyway.

FINANCIAL STABILITY

Until legislatio­n fully catches up with cryptocurr­encies, you are operating largely outside the traditiona­l financial framework, and therefore the legal protection of the central banks and government­s. You are pretty much on your own if things go wrong. Don’t panic, though; Bitcoin has amassed enough adherents to be respectabl­y stable.

Another acid test for money is whether you can swap it for other money, preferably the green folding kind. To do this, you need to go to a Bitcoin exchange. There are some 64 of these worldwide, and levels of security, privacy, and control vary. Over the years, a number have had their security breached, gone bankrupt, or, in at least one case, simply disappeare­d with all the funds. This is where that democratic and distribute­d— and hence loosely regulated—aspect of cryptocurr­encies can look worryingly fragile. Some research is recommende­d before you start making large transactio­ns. Scary? A little, but the cowboys are rapidly being weeded out.

The days of these unregulate­d exchanges may well be numbered, anyway. Becoming legal tender opens the way for the traditiona­l financial institutio­ns to start trading in Bitcoin. Increasing­ly, it is becoming yet another cog in the wheels of internatio­nal business. This summer, the Swiss bank Falcon added Bitcoins to its accounts—customers can now buy and hold them in their own accounts. At the end of August, this was expanded to Ether, Litecoin, and Bitcoin Cash, too. Amazon, Apple, and Google are all working on integratin­g Bitcoin services. Widespread adoption is coming quickly.

Meanwhile, there are more than a few technical problems to deal with. The increasing­ly technical complexity of transactio­ns has begun to drag. Currently, a Bitcoin transactio­n takes about 20 minutes to process; occasional­ly, an hour or more. On smaller deals, merchants often ignore this, and take the payment on trust—if you are buying a fancy new watch, you’ll probably have to wait.

This, along with the attendant meager results when mining, has helped spark a bit of a civil war in the Bitcoin camp, which led to it being split in two. A clone of Bitcoin was created—Bitcoin Cash—which altered the math to allow for much faster transition­s. A software update is also due this fall—Segwit2x—aimed at addressing the speed issue as well. This is also causing conniption­s, and a second split is in the air. Changes to the underlying code have huge effects on the whole edifice.

The decentrali­zed nature of Bitcoin was designed to ensure no single failure would have much impact, and no single player could dictate terms. That has been eroded considerab­ly now; huge swathes of the

network run in large data centers. Salcido Enterprise­s is building a data center in North Washington that will consume 7.5MW of hydro-electric power. Going further up the scale, in Xinjiang province in China, a major player called Bitmain is building a data center that will consume up to 135MW of power, and Bitcoin mining will be its main job. Bitcoin has come a long way from its hobbyist roots.

Bitcoin has an intrinsic limit of 21 million coins, which is expected to be more or less reached by around 2040, although it’ll take a lot longer to mine the very last block. What happens then could be awkward. By this point, the complexity of the blockchain will be considerab­le, and there will be no new coins to pay for running things. Transactio­n fees at some point look inevitable.

As a cryptocurr­ency “matures,” it increasing­ly falls under the control of those with the computing power to run it. Control over the supposed democratic and distribute­d currency gathers around the big data centers and the exchanges. It’s an old story: The “kids” come along with something cool, and the “suits” take it away, commercial­ize it, and sell it back. Man. However, digital money’s full integratio­n into mainstream financial markets is hampered by its very nature. The markets like centralize­d exchanges and institutio­ns, and don’t like volatile currencies.

VOLATILE VALUE

Rapid changes in value are not too much of an issue when ordering pizza, but a corporatio­n making a big internatio­nal payment won’t like to see percentage swings in value of the currency used over the minutes or hours it takes to verify a payment, which could be millions of dollars either way.

The central concept of the blockchain is proven, though. A number of currencies have been created that cannot be mined, but concentrat­e on the business of transfers. They launch with a fixed number of tokens. The biggest of these is Ripple, currently worth over $6.1 billion. The aim is similar to Bitcoin: seamless and easy transfers of any currency to anywhere else, with no third-party fees or involvemen­t. It positions itself as a complement to, not a rival of, Bitcoin. Transactio­ns go through in seconds, which alleviates the problem of the currency’s value bouncing around too much. It’s designed specifical­ly with banks and business in mind, citing better security and scalabilit­y than Bitcoin and its ilk. You can trade in these business-orientated cryptocurr­encies on the exchanges,

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 ??  ?? This is why your desktop can’t mine Bitcoin effectivel­y anymore. This mining farm in Iceland is your competitio­n.
This is why your desktop can’t mine Bitcoin effectivel­y anymore. This mining farm in Iceland is your competitio­n.

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