老崔说一说，区块链这个时髦而性感的技术。写之前，老崔网上查了一下，包括文字、图片和视频，发现竟然没人可以通俗解释区块链是什么。

很多文章会使用，“去中心化”、“分布式”等让人费解的名词。

客观的讲，要把区块链技术讲清楚，的确有难度。

比如，老崔问你，什么是5G技术，你一样会懵逼。

区块链也一样，不能想着把定义搞清楚，那是专家学者的事。

要想理解区块链，首先了解一下什么是区块链记账法。

假如你家有3口人，爸爸、妈妈和你。原来的记账方法是，爸爸1个人记，但妈妈认为爸爸留了小金库，现在改为：3个人记账，每人的账本都相同，并且随时对账，所有收入和支出都记上。

这就是区块链记账法，每个人都记账。

你可能会说，这太浪费了吧，效率也不高呀！对，的确不高！

区块链技术效率不高，并且浪费资源严重。

据统计，现在比特币挖矿，每年使用的电量将近三峡大坝的年发电年。

既然这么浪费，为什么还要发展区块链技术呢？

原因也很简单，区块链不是要解决效率的问题，而是要解决信任的问题。

比如，家里每人都记账，妈妈就不担心爸爸留有小金库了，这就建立了信任。

这就是区块链记账法。会不会有人偷懒呢？

区块链的解决方案是，谁记账最快最好，就给奖励。

区块链没有钱，奖励什么呢？那就创新一下，奖励一段特殊的代码，这就是比特币，而你记账的过程叫挖矿。

比特币的底层就是用的区块链技术。

比特币是一个创新性极强的东西，总量只有2100万枚，每4年产出减半，所以非常稀缺。

比特币还有一个特点，可以在互联网上自由转账，流畅的穿过国界。

说到这里，是不是感觉很有想像空间了？

那么，区块链到底有什么用的呢？

刚开始，大家也不清楚有什么用，只当是一个高级些的游戏币，大家转来转去。

2010年，有一个程序员，花10000个比特币买了2个披萨。

老崔写这篇文章的时候，一个比特币的的价格大概是5万人民币。

后来，随着比特币的暴涨暴跌，就成为了一个炒作对象。

这就是为什么很多人说，比特币有泡沫的原因。

说到这里，你可能想明白了，目前，区块链技术的第一大应用就是比特币，目前比特币的总市值已经超过了2000亿美元。

那么，区块链有没有些更实际的用途呢？

当然有了，要不今年10月24日，中央政治局就不会专题学习区块链了。

目前能看到的，区块链最大的应用在金融领域。

并且瞄准的目标也非常奇特，就是钱！

你没看错，区块链要变革的第一个对象，就是我们每日常用的钱。

区块链具有极高的生命力。

比特币已经被多个国家严令禁止，但它不担活了下来，价格还越来越高，因为它的确太难禁了。现在世界上大概有500万台超级计算机，帮比特币记账，分布在全球5大洲，有的在家里，有的在机房，有的深山老林，有的冰山雪地。

老崔认为，像治水一样，与其堵，不如疏。

我们国家，正因为看到了区块链的巨大力量，决定发行自己的数字货币DCEP。

中国为了人民币的国际化，已经努力了20年，目前在国际结算中的比例只有4%。

老崔认为，基于区块链技术发行的数字货币，将极大地促进人民币的国际化。

目前，整个国际金融体系是围绕美国建立起来了，这让中国在国际竞争中非常被动。

最近美国说，有可能禁止通过SWIFT给华为汇款，这意味着华为无法汇总全球的销售收入。美国为了打压中国，可谓无所不用其极。

但这也给了中国，建立以自己为中心的全球金融体系的机会，而区块链就是最佳的推进剂。

老崔再讲一个区块链的应用。

我们知道，全球75%的芯片是美国设计的，去年美国说要切断对中兴通讯的供应，中兴马上就服软了。

董明珠说要砸500亿搞芯片，根本搞不出来，因为根本没有市场生态的需求。

这从侧面说明，中国的芯片设计生产能力还比较落后。

但是，因为区块链，因为比特币挖矿需求的促进，中国的芯片设计水平极速提升。

目前全球80%比特币矿芯片，都是由中国设计生产的。

失之桑榆，收之东隅。底子薄弱的中国芯片行业，成长了起来，目前他们在积极布局人工智能、自动驾驶、物联网等芯片。

Lao Cui talks about the fashionable and sexy technology of blockchain. Before writing, Lao Cui checked online, including text, pictures and videos, and found that no one could explain what blockchain is in a simple way.

Many articles will use confusing terms such as “decentralization” and “distributed”.

Objectively speaking, it is indeed difficult to explain blockchain technology clearly.

For example, if Lao Cui asks you what 5G technology is, you will still be confused.

The same goes for blockchain. You cannot try to figure out the definition. That is a matter for experts and scholars.

To understand blockchain, first understand what blockchain accounting is.

Suppose there are three people in your family, dad, mom and you. The original accounting method was that Dad kept it by himself, but Mom thought that Dad had left a small treasury. Now it was changed to: 3 people keeping accounts, each person's account book is the same, and the accounts are reconciled at any time, and all income and expenses are recorded.

This is the blockchain accounting method, everyone keeps accounts.

You may say, this is too wasteful and not very efficient! Yes, it is indeed not high!

Blockchain technology is not efficient and wastes resources seriously.

According to statistics, Bitcoin mining now uses electricity every year that is close to the annual power generation of the Three Gorges Dam.

Since it is so wasteful, why should we develop blockchain technology?

The reason is also very simple. Blockchain is not to solve the problem of efficiency, but to solve the problem of trust.

For example, if everyone in the family keeps accounts, mom won’t worry about dad leaving a small treasury, which builds trust.

This is the blockchain accounting method. Could someone be lazy?

The solution of blockchain is to reward whoever keeps accounts the fastest and best.

There is no money in the blockchain, so what are the rewards? Then be innovative and reward a special piece of code. This is Bitcoin, and the process of your accounting is called mining.

The bottom layer of Bitcoin is the blockchain technology used.

Bitcoin is a highly innovative thing. There are only 21 million coins in total, and the output is halved every four years, so it is very scarce.

Bitcoin also has the feature that it can be transferred freely on the Internet and smoothly across national borders.

Speaking of this, does it feel like there is a lot of room for imagination?

So, what is the use of blockchain?

At the beginning, everyone didn’t know what it was used for. They just thought it was a higher-end game currency and everyone turned it around.

In 2010, a programmer spent 10,000 Bitcoins to buy 2 pizzas.

When Lao Cui wrote this article, the price of one Bitcoin was about 50,000 yuan.

Later, with the explosion of BitcoinIf it rises or falls sharply, it becomes an object of speculation.

This is why many people say that Bitcoin has a bubble.

Having said this, you may have figured out that currently, the number one application of blockchain technology is Bitcoin, and the current total market value of Bitcoin has exceeded US$200 billion.

So, does the blockchain have any more practical uses?

Of course, otherwise, on October 24 this year, the Political Bureau of the Central Committee would not have a special study on blockchain.

As currently seen, the largest application of blockchain is in the financial field.

And the target he aims at is also very strange, which is money!

You read that right, the first object that the blockchain will change is the money we use every day.

Blockchain has extremely high vitality.

Bitcoin has been strictly banned by many countries, but it has survived and the price is getting higher and higher because it is indeed too difficult to ban. There are now about 5 million supercomputers in the world that help with Bitcoin accounting. They are distributed on five continents around the world. Some are at home, some are in computer rooms, some are in deep mountains and old forests, and some are in icebergs and snowfields.

Lao Cui believes that, like controlling water, it is better to clear it than to block it.

Our country, precisely because it saw the huge power of blockchain, decided to issue its own digital currency DCEP.

China has been working hard for 20 years to internationalize the RMB, and currently accounts for only 4% of international settlements.

Lao Cui believes that digital currency issued based on blockchain technology will greatly promote the internationalization of the RMB.

At present, the entire international financial system is built around the United States, which makes China very passive in international competition.

Recently, the United States said that it may ban remittances to Huawei through SWIFT, which means that Huawei cannot aggregate global sales revenue. In order to suppress China, the United States will do anything it can to suppress China.

But this also gives China the opportunity to establish a global financial system centered on itself, and blockchain is the best propellant.

Lao Cui will talk about another application of blockchain.

We know that 75% of the world's chips are designed in the United States. Last year, the United States said it would cut off its supply to ZTE, and ZTE immediately relented.

Dong Mingzhu said that he would spend 50 billion to develop chips, but he couldn't do it because there was no market ecological demand at all.

This shows from the side that China's chip design and production capabilities are still relatively backward.

However, because of the blockchain and the promotion of Bitcoin mining demand, China's chip design level has improved rapidly.

Currently, 80% of the world’s Bitcoin mining chips are designed and produced in China.

What is lost is the mulberry tree, and what is gained is the east corner. China's chip industry, which had a weak foundation, has grown up and is currently actively deploying chips for artificial intelligence, autonomous driving, and the Internet of Things.