With the uncle aunt talk about what is a bit coin

By Google Translate：A few days ago made a friend circle, said with the mother to understand what is a bit coin, my mother said it was a good thing to buy more. As a result, many friends say that their study for a few months did not get to know what is a bit coins, strongly asked me to share the next. I am respectful than from the life of the ~

Bitcoin is actually particularly simple, but now understand the bitcover are often technical staff, they are accustomed to using professional terms, a few terms thrown out, put the audience smashed dizzy. This kind of smashing halo listen to the argument is generally the beginning of this:

Baidu Encyclopedia of special currency terms
Bitcoin is a digital currency in the form of P2P. Point-to-point transmission means a decentralized payment system. Unlike most currencies, Bitcoin does not rely on a specific currency institution, which is generated by a large number of calculations based on a particular algorithm. The bit currency economy uses a distributed database of many nodes in the entire P2P network to confirm and record all transactions, And the use of cryptographic design to ensure that all aspects of currency circulation security.

Such an explanation do not say uncle aunt, as long as the computer is not professional, afraid that even the doctor can not read it!

So, if the jump square dance uncle aunt who ran to ask what is the bit coin, how can we explain to them to listen to it. Keke, laying thin talk about thin, learn to point Oh ~

Assuming the square dance club in order to encourage everyone to dance, the provisions of each time plus 2 points, no reason not to deduct 3 points, lead the dance once plus 1 point ... ... points change the situation by the club's aunt to record. Points can be converted at the end of peanut oil and other prizes ... ...

In fact, in real life, the duties of the bank and Wang aunt's duty is the same - are accounting (only the king aunt remember the points, the bank is the money). Wages are paid, the bank to your account plus 2000 dollars; bought a bottle of shampoo 20 yuan; deposit plus interest 100 yuan a year; transfer is in your account by 1000, in the other account plus 1000. ...

But the biggest difference between the bank and the king aunt is that the king aunt is free for everyone to serve, the banks have to ask us to collect money, do card fees, annual fee, transfer fee ... ... look at the number of high-rise buildings , How many employees hired, we know how much money the bank received us.

If one day we do not want the bank or king aunt to account, can you realize

Too, it is like this.

We can use people who use Bitcoin as a member of a square dance club, the club's points are such provisions:

1. the initial integral of each person (that is, bit currency) is 0;
2. the people in the community to maintain a book, with or without changes, the books updated every 10 minutes, updated to inform the community owner;
3. Any person in the community has the right to account, as long as the account, you can get 50 bit coins reward (every four years and half, now is 12.5 bit currency).
4. All those who want to account should have the same math problem, and the first person to be counted is eligible to account.
5. The upper limit of the bitcoin is 21 million. If all finished, grab the right to remember the person can get the past 10 minutes all the transfer fee.

We take the bill in order to obtain the process of bit by bit reward, known as mining.

The first bit of special currency is of little value, only his inventor in the Cong willing to mine. In the abundance of digging more than 100 million pieces of coins, and finally began to join the mining team in succession. Later, some physical shops, websites and other began to accept Bitcoin payment, people are more and more demand for Bitcoin, Bitcoin is more and more valuable.

This argument, uncle aunt who should be able to understand it? At least I dance every day that dance, has been the leader of the dance has been understood, ha ha ha ~ ~ ~

A little more depth, we can understand the next bit of a few important features:

1. to the center. Do not rely on any one central account, but by the people together to maintain a book, anyone can go to read the bill.

2. can not be tampered with. Each block is covered with a timestamp, all the blocks connected to the end of the block, once you want to change the data within the block, the timestamp is not on; and the club all staring at it, want to tamper with at least more than Half of the people willing to work with you "refers to deer for the horse."

3. open and transparent. Any account of the account can be found in the block chain. When you transfer to someone else, do not worry about the other party received the money do not admit, the block chain are remembered it?

4. anti-review. The government can not let the bitter currency hang, unless it does not let anyone dig, that is, the world's network paralyzed, and the bank, Alipay, WeChat to hang only a word of government (such as the recovery of Alipay license) ; Your Bit Coin has a central network, no one can take away, and the government can at any time "take away" all the money in your bank card (for example, you eat a lawsuit).

5. internationalization. Because Bitcoin only exists in the Internet, if you want to transfer, pay, buy Bitcoin, only need to network operation on it. From the bitcover wallet download data, the world more than 200 countries in the use of Bitcoin, than the dollar, the yuan and other currencies are more international.

6. anti-inflation. The total amount of the renminbi is no limit, the government every year in a large number of printing money, bit coins the limit is 21 million, no one may change.

Speaking of here, we may wish to try to calculate the price of Bitcoin. Because the price is determined by the value, the more people who use Bitcoin, the higher the price. How many people are using Bitcoin? Because the bit currency is anonymous currency, so we can only according to various types of special currency wallet registration volume under the speculation:

January 2009, 1
May 2012, 1.85 million
Early 2015: 6 million
May 2016: 12 million

Compare: Alipay users is 1 billion, the next 10 years will reach 2 billion. If we think that the number of users will be increased by 1 times, 10 times, 100 times, then the price of Bitcoin increased by 1 times, 10 times, 100 times nothing problem.

前几天发了条朋友圈，说跟老妈讲明白了什么是比特币，老妈表示这是个好东西，要多买入。结果，很多朋友留言说，自己研究了几个月都没搞懂什么是比特币，强烈要求我分享下。我就恭敬不如从命了~

比特币其实特别简单，只是现在了解比特币的往往都是技术人员，他们都习惯用专业术语来讲，几个术语抛出去，就把听众砸晕了。这种砸晕听众式的讲法一般是这样开头的：

百度百科比特币词条
比特币是一种P2P形式的数字货币。点对点的传输意味着一个去中心化的支付系统。与大多数货币不同，比特币不依靠特定货币机构发行，它依据特定算法，通过大量的计算产生，比特币经济使用整个P2P网络中众多节点构成的分布式数据库来确认并记录所有的交易行为，并使用密码学的设计来确保货币流通各个环节安全性。

这样的解释不要说大爷大妈了，只要不是计算机专业的，怕是连博士都看不懂吧！

那么，如果跳广场舞的大爷大妈们跑来问什么是比特币，我们该怎么解释给他们听呢。咳咳，旎叫瘦开讲咯，学着点哦~

假设广场舞俱乐部为了鼓励大家多来跳舞，规定每来一次加2分，无故不来扣3分，领舞一次加1分......积分变动的情况由俱乐部的王阿姨来记录。积分可以在年底兑换花生油等奖品……

其实，现实生活中，银行的职责和王阿姨的职责是一样的——都是记账（只不过王阿姨记的是积分，银行记的是钱）。发工资了，银行给你的账户上加2000块钱；买了一瓶洗发水减20元；存款一年加利息100元；转账就是在你账户上减1000，在对方账户上加1000......

但银行与王阿姨最大的不同在于，王阿姨是免费为大家服务的，银行却要问我们收钱，办卡费、年费、转账费......看看银行有多少座高楼大厦、雇了多少员工，就知道银行收了我们多少钱了。

如果某天我们不想要银行或王阿姨记账了，可以实现吗？

太可以了，比特币就是这样的。

我们可以把使用比特币的人看成是一个广场舞俱乐部的成员，这个俱乐部的积分是这样规定的：
1）每个人的最初的积分（就是比特币）数额都是0；
2）社群里的人共同维护一个账本，无论是否有变动，账本每10分钟更新一次，更新后要通知社群所有人；
3）社群里的任何一个人都有权记账，只要记账，就能获得50个比特币的奖励（每四年减半，现在是12.5个比特币）。
4）所有想记账的人都要算同一道数学题，第一个算对的人才有资格记账。
5）比特币的上限是2100万枚。如果全都发完了，抢到记账权的人就可以得到过去10分钟内所有转账的手续费。

我们把抢记账权从而获得比特币奖励的过程，称为挖矿。

最初比特币是没什么价值的，只有他的发明者中本聪愿意挖矿。在中本聪默默的挖了100多万枚比特币之后，终于开始陆续有人加入到挖矿队伍中。再后来，一些实体店铺、网站等开始接受比特币支付，人们对比特币的需求量越来越大，比特币就越来越值钱了。

这样的讲法，大爷大妈们应该能听懂吧？至少我那个每天都跳广场舞、一直担任领舞的老妈已经听懂了，哈哈哈~~~

稍微深入一些，我们可以了解下比特币的几个重要的特点：
1）去中心化。不依赖任何一个中心记账，而是由所有人一起来维护一个账本，任何人都可以去抢记账权。

2）不可篡改。每一个区块都被盖上了时间戳，所有区块首尾相连，一旦想更改区块内的数据，时间戳就对不上了；而且俱乐部所有人都在盯着呢，想篡改至少要有超过一半的人愿意跟你一起“指鹿为马”。

3）公开透明。任何一个账户的往来账目都可以在区块链上查到。当你转账给别人时，不用担心对方收了钱不认账，区块链上都记得一清二楚呢。

4）抗审查。政府不能让比特币挂掉，除非它不让任何人挖矿，也就是把全世界的网络弄瘫痪了，而银行、支付宝、微信要挂掉只是政府一句话的事（比如收回支付宝的牌照）；你的比特币存在一个去中心化的网络里，任何人不能抢走，而政府随时都可以“抢走”你银行卡里所有的钱（比如你吃了官司）。

5）国际化。因为比特币只存在于互联网，如果想转账、支付、购买比特币，只需要联网操作一下就可以了。从比特币钱包的下载数据来看，全世界有200多个国家在用比特币，比美元、人民币等货币都更加国际化。
6）抗通胀。人民币的总量是没有上限的，政府每年都在大量印钱，比特币的上限是2100万，任何人不得更改。

讲到这里，我们不妨试着推算下比特币的价格。因为价格是由价值决定的，使用比特币的人越多，价格就越高。那有多少人在使用比特币呢？因为比特币是匿名货币，所以我们只能根据各类比特币钱包的注册量推测下：

2009年1月，1
2012年5月，185万
2015年年初：600万
2016年5月：1200万

对比一下：支付宝的用户量是10亿，未来10年会达到20亿。如果大家觉得比特币的用户数还会增加1倍、10倍、100倍的话，那比特币的价格增加1倍、10倍、100倍也没啥问题吧。