比特币从2008年开始概念被提出后，价值越来越高，而比特币总数量将被永久限制在约2100万个，而且有着“四年减半”现状，提到比特币减半，很多的人并不懂，比特币怎么减半，比特币为什么会减半，接下来小编将给大家简单介绍一下。
After the concept was introduced in 2008, the value of Bitcoin became increasingly high, while the total number of bitcoin would be permanently limited to about 21 million, with “ halving by four years & & rdquao; the status quo, referring to halving bitcoin, many people did not understand how bitcoin would be halved, and why bitcoin would be halved, and the editor would brief you.
比特币减半又可称为比特币区块奖励减半，是指产出新区块后所获得的奖励大约每隔四年减半一次。这意味着减产后，每挖出一个区块，其对应的比特币奖励都只有减半前的奖励的一半。比特币在2009年问世后，区块奖励为50个比特币，根据出块速度，大约每4年奖励减半一次，最终总量恒定为2100万枚。 目前，比特币已经进行了两次减半，分别发生在2012年11月和2016年7月。第三次比特币减半时间预计将发生在2020年。届时，比特币产量将会由现在的12.5个减半到6.25个。
Halve the bitcoin, which can be called the bitcoin block incentive, is about halving the reward every four years after the production of the new block. This means that for every block to be dug, the bitcoin reward will be only half of the pre-half incentive. After Bitcoin was born in 2009, the block reward would be 50 bitcoins, roughly halved every four years, depending on the speed of output, with a total of 21 million.
比特币作为虚拟数字货币的开创者，比特币诞生之初，中本聪制定了一条规则，规定比特币系统，而矿工们奖励，在区块交易完成后，奖励就会减半。规则如下：
As the founder of the virtual digital currency, Bitcoin was born with a rule that established the Bitcoin system, while miners gave incentives that were halved when block transactions were completed. The rules are as follows:
了解完比特币每21万个区块交易完成后奖励减半，这时咱们来算一笔账，365（天）x24（小时）x6（6个十分钟）=52560，一年挖出这么多，几年够21万个区块？答案是4年够一次，所以这就是“四年减半”的由来。
After learning that bitcoin is halved for every 210,000 blocks of trade, let's make a score:
根据减半规则，每4年的总产量也会减半，这一衰减非常快速。事实上从比特币诞生到现在产出的比特币达到了甚至更多。
According to the rule of halving total production by half every four years, this decline is very rapid. In fact, even more bitcoins have been produced from the birth of bitcoin to the present.
根本原因是出于供需关系的考虑。
The underlying reason is demand-supply considerations.
试想一种极端情况：如果在短时间内不加限制地产出了大量比特币，那比特币必然会因为流通量过多而变得毫无价值。
Imagine the extreme: if large amounts of bitcoins were produced in a short period of time without restriction, that bitcoins would inevitably be rendered worthless by excessive circulation.
从经济层面理解就像印钞票，不断地印，不停地发，钱就越来越不值钱了，印多了便会造成通货膨胀。比特币也是一样的，作为给矿工打包区块的奖励，也不能无休止地奖励下去，总数恒定2100万个，每四年奖励给矿工的数量就少一半，一直奖励到2100万个比特币都被挖出来就不继续奖励新币了。
At the economic level, it's like printing money, printing it up and down, making money less valuable and more expensive. The same is true for bitcoin, which is an incentive to pack blocks for miners, and cannot be rewarded indefinitely, with a constant total of 21 million, half of every four years for miners, and until 21 million bitcoins are dug up, so that they do not continue to reward the new coins.
比特币之所以如此设计，正是为了控制通货膨胀。
Bitcoin was so designed to control inflation.
1. 第一次减半：2012年11月28日
1. First halving: 28 November 2012
比特币用了大约513天的时间才从2.01美元的底部反弹至270.94美元的市场周期顶部，涨幅超过13000%。
It took about 513 days for Bitcoin to rebound from the bottom of $2.01 to the top of the market cycle of $270.94, an increase of more than 13,000 per cent.
比特币首次减半是一个关键的催化剂，推动了比特币的显著增长，并开启了一个新的牛市周期。
For the first time, the halving of Bitcoin was a key catalyst, driving significant growth in Bitcoin and opening a new cattle cycle.
当比特币价格跌破270.94美元的峰值后，2013年的熊市就开始了，比特币的价格下跌了80%。这次熊市持续了大约87天。
When Bitcoin prices fell to a peak of US$ 270.94, the bear market began in 2013 and the price of Bitcoin fell by 80%. The bear market continued for about 87 days.
2. 第二次减半：2016年7月10日
2. Second halving: 10 July 2016
比特币从164.01美元的底部反弹至2074美元的市场周期顶部，历时1068天，涨幅超过了12000%。
Bitcoin rebounded from the bottom of $164.01 to the top of the market cycle of $2074 for 1,068 days, an increase of over 12,000 per cent.
在2074美元的峰值之后，比特币进入了为期51周的熊市，并于2018年12月中旬触底。
After a peak of $2074, Bitcoin entered the Cove for 51 weeks and hit the bottom in mid-December 2018.
在比较了这两部分之后，我们得出了关键的结论：
After comparing the two parts, we came to the key conclusion:
3. 第三次减半：时间暂定
3. Third reduction by half: tentative time
1.根据统计学回归发现，在矿工奖励减半之前和之后的几个月里，经历减半事件的加密货币的表现并没有好于大盘的现象。
1. According to statistical returns, the performance of the encoded currency that experienced the halving event was not better than that of the miner before and in the months that followed.
2.经过回归分析，一项加密资产在减半前后的收益分布与其其他时间的收益分布相同，且具有高度显著性，没有证据可以表明供需动态变化导致定价行为异常。
2. Based on regression analysis, the distribution of proceeds of an encrypted asset before and after halving is the same as the distribution of proceeds at other times and is highly visible, and there is no evidence that changes in the dynamics of supply and demand have led to abnormal pricing behaviour.
3.LTC在两次减半前的几个月均有着优于市场的表现，但在第一次减半后，其表现跌至25%的底部。
LTC performed better than the market in the months leading up to two halves, but after the first halve, performance fell to the bottom of 25 per cent.
4. BTC的表现与LTC完全相反，在减半前相对于市场整体的表现较差，减半后则有着优于市场的表现。
The performance of BTC is exactly the opposite of that of LTC, which performed less than the market as a whole before being halved and, after being halved, better than the market.
减半会使得比特币盈亏平衡成本骤变。盈亏平衡成本指的是矿工矿场在正常运转下，用矿机挖矿获得的收益还不足以支付挖矿消耗的电费时的币价，也可以理解为挖出某一种币的挖矿成本价或关机价，此时挖矿利润为0。如果币价跌破“关机价格”，那么挖矿自然就会亏损。
The cost of profit-and-loss balance changes dramatically by half. The cost of profit-and-loss balance is that the miner’s normal operation does not generate enough revenue to cover the cost of electricity consumed by the mine, and it is understood that the cost of digging or closing down a currency is zero. If the price falls & ldquao; the shut-off price & & rdquao; then the mine will lose.
总体来说，比特币减半对于市场还是有一定的影响的，当然这影响有好有坏，不过无论如何，比特币都是有价值的。毕竟比特币的数量是固定的;而且通过减半过程，比特币经济中的通货膨胀可以受到抑制。
Overall, halving bitcoin still has a mixed effect on the market, although in any case bitcoin is valuable. After all, the amount of bitcoin is fixed; and, through the process of halving, inflation in bitcoin can be contained.
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