/table>
北京的车库咖啡就是接受比特币支付的商家之一。咖啡馆有一个比特币账户的二维码，付款时只要扫一扫就能完成，非常便捷。
The garage coffee in Beijing is one of the merchants that receives bitcoin payments. The café has a two-dimensional code for the bitcoin account, which can be done with a clean-up, which is very easy.
有趣的是，由于比特币兑换人民币的汇率随时在变化，支付前还需要到专门的汇率网站去换算。同一杯咖啡，每天的比特币标价都可能不同。而店里第一笔用比特币完成的生意，是一位客人用0.012比特币买了一杯咖啡。
Interestingly, because the currency exchange rate of bitcoin is changing at any given time, a special exchange rate website is needed before payment. The same coffee, the daily price of bitcoin, may differ.
0.012这个数字，看起来有些怪异，这可不是因为咖啡太便宜，而是比特币太值钱了。自诞生以来，比特币的身价一直在飙升。截至5月6日22时，1比特币能兑换约759元人民币，而在4月份汇率最高的时候，这个数字更是在千元以上。
The figure of 0.012 seems odd, not because coffee is too cheap, but bitcoin is too valuable. Bitcoin's worth has been soaring since birth. At 2200 hours on May 6, one bitcoin was able to convert about 759 yuan, and at the highest exchange rate in April it was more than a thousand dollars.
诱惑
♪ Strangled ♪ ♪/ strong ♪
发行总量到2140年将达2100万个的上限
The total circulation of
比特币没有属于自己的“中央银行”，它的发行是基于一套无人能改的公开算法，这意味着，比特币的生产与流通不受任何人、任何机构的控制。
Bitcoin does not have its own “central bank”, which is issued on the basis of a public algorithm that cannot be changed, which means that the production and circulation of bitcoin is not controlled by anyone or any institution.
传统纸币的制造靠印钞厂，比特币则靠“挖矿”。所谓“挖矿”，是指让电脑运行特定程序，对一些数据块进行解锁来“开采”比特币。“开采”完成后，网络会“按劳分配”——谁贡献的计算能力越多，收获的比特币就越多。
Traditional banknotes are made by printing machines and bitcoins by “mining”. The term “mining” is to allow computers to run specific programs to “exploit” bitcoins by unlocking some of the data blocks. When the “mining” is completed, the network will “distribute” — the greater the capacity of who contributes, the more bitcoins will be harvested.
只需下载一个客户端让电脑自己运行，就可以“挖矿”了。听起来似乎很简单，不过，这套复杂的运算，对计算机的要求非常高。若是使用普通的笔记本电脑，运行几年都不会有任何收获。很显然，计算能力越强，“挖矿”时越有优势。于是，专业的“挖矿机”应运而生。这些电脑为追求极致的运算速度而舍弃了其他功能，价格通常要几万元。
Downloading a client to let the computer run itself makes it “mining”. It sounds simple, though, this complex set of calculations is very demanding for computers. If you use a normal laptop, you won't get anything for years. Obviously, the better you can do it, the better you can do it. So, the better you can do it, the better you can do it.
决定“挖矿机”性能与价格的关键在于显卡。在进行这类复杂运算的时候，显卡的效率要比CPU高得多。按照发行规则，被“开采”出来的比特币越多，新币的计算就越难，“挖矿”也会越来越慢。如今，每10分钟，网络只能产生25个比特币，而到了2017年，这个数字会减半至12.5比特币，并且每隔4年再减半。
The key to determining the performance and price of a miner is the card. In making these complex calculations, the card is much more efficient than the CPU. The more bitcoins are “exploited” according to the rules of distribution, the more difficult they are to calculate, and the slower they are.
争议
Controversy > /strang >
引发货币观念之争，投机助长泡沫化风险，
triggers a currency debate, and speculation fuels the risk of bubbles,
前景并不乐观
is not promising
购买比特币的人们并不是觉得它真正有用，而是因为它的价格在上涨。这让人们从中嗅到了泡沫化的风险，更引起了货币观念之争。没有任何实际价值的事物能否成为货币？在一些专家看来，答案是否定的。“比特币的运算毫无意义。”对外经贸大学金融学院兼职教授赵庆明认为，比特币只能是昙花一现。“货币应具有一定的物质抵制资产，且币值相对稳定，这两点比特币都无法做到。”
The people who buy bitcoin do not find it really useful, but rather because their prices are rising. This gives rise to the risk of bubbles and even more currency controversy. Can anything of any real value become money? The answer, according to some experts, is no. “Bitco’s calculations are meaningless.” Jo Kyung-min, a part-time professor at the Institute of Finance at the University of Foreign Economics and Trade, thinks that bitcoin can only be spent. “Money should have some material resistance assets, and the value of the currency is relatively stable, and neither bitcoins can do it.”
另一些经济学家则不这么认为。布雷顿森林体系崩溃后，美元与黄金脱钩，货币的商品属性已不存在，这使得人们开始转变观念：一种事物能否成为货币，与其本身的用处无关；只要所有人都认可并使用，它就可以成为货币。如果人们能认同一张纸有价值，一串数字代码为什么不行呢？不少粉丝坚信，比特币代表着未来货币的发展方向。
When the Bretton Woods system collapsed, the dollar was decoupled from gold, and the commodity properties of the currency no longer existed, which led to a shift in perceptions: whether a thing could become a currency had nothing to do with its own usefulness; it could become a currency as long as it was accepted and used by all. If one could agree that a piece of paper was valuable, why not a set of digital codes? Many fans believed that Bitcoin represented the direction of the future currency.
不过，即使支持者也认为，比特币正在成为巨型泡沫，前景并不乐观。“如果比特币继续上涨，那么它的货币属性会越来越弱，如果比特币价格下跌或横盘，那么人们才会使用比特币进行支付。可此时那些奔着赚钱而来的人就会失望而流失。这怎么看都是个悖论。”财经专栏作家端宏斌在博客中写道。但他又指出，这并不意味着比特币毫无价值。当年的互联网也经历了泡沫破灭的过程，却并没有死亡。对于比特币来说，情况也许一样。
But even supporters believe that bitcoin is becoming a giant bubble, and the outlook is not optimistic. “If bitcoin continues to rise, its monetary attributes will become weaker, and if bitcoin prices fall or cut across, people will use bitcoin to pay.
相比于未来，当前更直接的问题是，虚拟货币已走进现实生活，会否对现行的金融秩序造成影响？“目前看来，影响微乎其微。当然，如果泡沫太大，破灭时肯定会造成不小的损失。”赵庆明说。(本报综合报道)
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