1、最开始每10分钟生成50个比特币（每次10分钟的间隔由算法来保证稳定不变）；
1. The initial generation of 50 bitcoins per 10 minutes (a 10-minute interval is maintained by algorithms);
2、每21万次后，比特币的单次产量减半，从50、25、12.5……依此类推，直至总量达到2100万。
For every 210,000 times, the individual production of Bitcoins is reduced by half, from 50, 25, 12.5 and so on to a total of 21 million.
根据以上规则，我们只需列出算式，便能得出每次减半（21万次）需要的时间：
On the basis of the above rules, we need only list formulas to arrive at the time needed to halve each time (210,000):
210000÷(365*24*6)
注：因为每10分钟产出一次，所以每年的次数是365*24*6
Note: The number of times per year is 365*24*6 as output is produced every 10 minutes
答案正是4（年），这便是“四年减半”之说的由来。
The answer is exactly 4 years, and that is why “50 per cent for four years”.
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。事实上比特币诞生十年以来，已经产出了1700余万个比特币，达到了总量2100万的83%。
Under the halving rule, total production will be halved every four years, a very rapid decline. Indeed, 10 years after Bitcoin’s birth, more than 17 million bitcoins have been produced, amounting to 83 per cent of a total of 21 million.
02
为什么要设计四年减半的规则？
Why design the four-year rule of halving?
根本原因是出于供需关系的考虑。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。
The root cause is supply-demand considerations. Imagine an extreme scenario: if you produce large amounts of bitcoins in a short period of time without restriction, that bitcoins will inevitably be rendered worthless by excessive circulation.
“V神”在评论比特币产量机制的文章中是这样表述的：
“V God” says this in an article commenting on the Bitcoin production mechanism:
比特币之所以如此设计，正是为了控制通货膨胀……你也可以将这一规则和黄金进行对比，黄金在地球上总量固定，现在的开采难度越来越 大，也正因为这些原因，黄金能流通于世数千年，至今仍然价值稳定，成为国际认可的价值交换媒介。希望比特币也可以。
Bitcoin is so designed to control inflation that you can compare this rule with gold, which is fixed on Earth, and which is now increasingly difficult to extract, and because of this, gold can circulate for thousands of years, and is still valuable and internationally recognized as a value-exchange medium. Hope is also true for bitcoin.
减半和比特币的价格有什么关系？
What does halving the price of bitcoin have to do with it?
已经有无数人试图论证过两者之间的关系，本文开头所说的“减半可能会带来价格上涨”也是其中的一种观点。实际情况如何呢？不妨回顾下历史上2次减半时的情况。
There have been numerous attempts to argue the relationship between the two, and the words “a reduction in the price of half” at the beginning of this paper are one of them. What is the reality?
2012年比特币产量首次减半，由原来的每次50个比特币减为25个比特币，图中可以看出减半时间点一周前后价格波动并不明显。
In 2012, for the first time, the production of bitcoins was halved from the original 50 bitcoins to 25 bitcoins, and the figure shows that price fluctuations were not apparent before or after the cut-off point.
2016年年中，比特币产量再次减半，由每次25个比特币减为12.5个比特币，减半一周前比特币价格是650美元，一周后价格是675美元，减半时间点前后BTC的价格也没有发生特别的变化。
By mid-2016, the production of bitcoin was again halved from 25 bitcoins to 12.5 bitcoins at a price of $650 a week before and $675 a week later, with no particular change in BTC prices before or after the midpoint.
也有人坚持比特币价格和减半强相关，认为价格会上涨，并且上涨会发生在减半前的3个月到1年期间，按这一结论来观察2016年减半的情况，会发现的确如此。但如果你放宽视野，还会看到在2016年减半前也发生了很多重大事件，比如监管、重量级媒体的关注、资本机构的参与等等，这些也都可能是价格变化的重要原因。
There are also those who insist on a strong correlation between bitcoin prices and halving, arguing that prices will rise, and that they will occur in the three-month to one-year period before halving, a conclusion that can be observed in observing a reduction in 2016. But if you open your eyes, there will also be a number of major events ahead of halving 2016, such as regulation, weight media attention, and the involvement of capital agencies, all of which may also be important reasons for price change.
因此，我们并不能断言比特币减半和价格走势间会存在某种必然的联系。
Therefore, we cannot assert that there is a certain inevitability between halving bitcoin and price trends.
04
小结
Summing up
比特币四年减半是它产量规则设计的计算结果。相比四年减半和比特币价格变化之间的关系，或许你可以更多关注比特币为何如此设计？为什么总量固定，又通过产量减半来持续降低它的新增供给，以避免比特币被很快挖完呢？详细交流请加笔者！
The four-year cut of bitcoin is the result of its production rules. Perhaps you can focus more on how bitcoin is designed than the four-year cut-off relationship between bitcoin price changes.
电科技（www.diankeji.com）是一家专注于全球TMT行业的领先资讯媒体。
Electronics and Technology (www.diankeji.com) is a leading information medium focused on the global TMT industry.
作为今日头条青云计划、百家号百+计划获得者，2019百度数码年度作者、百家号科技领域最具人气作者、2019搜狗科技文化作者、2021百家号季度影响力创作者，曾荣获2013搜狐最佳行业媒体人、2015中国新媒体创业大赛北京赛季军、 2015年度光芒体验大奖、2015中国新媒体创业大赛总决赛季军、2018百度动态年度实力红人等诸多大奖。
As the winner of today’s leading Qingyun Project, the 100+ Project, the digital annual authors of 2019, the 100th most popular in science and technology, the 2019 dog-searchers, the 2021st quarterly influence creators, the best industry media promoter of the 2013 search, the Beijing Quakers of the 2015 China New Media Entrepreneurship Competition, the 2015 luminous experience award, the 2015 China New Media Entrepreneurship final season, the 2018-degree dynamic year Red Man, and many other prizes.
投稿、商务合作请联络微信公众号
声明：本站原创文章文字版权归电科技所有，转载务必注明作者和出处；本站转载文章仅仅代表原作者观点，不代表电科技立场，图文版权归原作者所有。如有侵权，请联系我们删除。
注册有任何问题请添加 微信：MVIP619 拉你进入群
打开微信扫一扫
添加客服
进入交流群
发表评论