（Picture Source:Sogou）

Now the development of block chain is in a stage of rapid trial and error, the change of enterprise products and the change of enterprises in the industry will be relatively fast. After all kinds of blockchain projects come to the ground, they will enter the stage of fierce and rapid market competition and industrial integration, form some industry leaders in three to five years, complete the market division, and the industrial pattern of block chain will be basically formed. Blockchain has a wide and profound impact on people's lives on a global scale. At present, blockchain technology is being used in various fields, and well-known enterprises at home and abroad have entered. Microsoft, IBM, JPMorgan Chase, Ali, Tencent, Mei and so on pay close attention to and layout, and the block chain will certainly be used. Start a war that broke out.

Now, the blockchain is once again hot, and although the word "subversion" has not been mentioned again, the hustle and bustle of two years ago seems to be repeating itself. On Oct. 28, Guan Qingyou, president of the Institute of Finance, forwarded a Weibo: "so far, 500 A-share listed companies, or 1/6 of listed companies, have announced that they have a direct or indirect relationship with the blockchain." Since then, it has been reported that 1000 listed companies claim to be linked to the blockchain business. On Oct. 28, when the stock market opened, there were indeed a lot of "blockchain concept stocks" ushered in a big rally. Even Sun Yuchen, founder of Bochang coin, can't see this. There you go. Sun Yuchen came into contact with Bitcoin early, and Jin became a "currency tycoon" after the bull market began in 2017. In June 2019, he became famous for buying Buffett lunch for $4.56 million. One of his labels has always been marketing and hot spots. On Oct. 29, Sun Yuchen joked with ridicule in a live broadcast: "A lot of people say we're trying to get hot, and we still can't agree because we've been ploughing the industry for a long time." Today, the whole 3,000 A-share listed companies, at least 1,000 of them, are saying that they have something to do with the blockchain. They are the heat. " Sun Yuchen also said that in the whole A-share listed company, the technical level is "really no" compared with the wave field. Sun Yuchen's argument is not credible, but it can be imagined that when the blockchain technology is popularized by the mainstream society, in this era of blockchain recklessness, everyone hopes to get more attention and voice. Of course, the most important thing is how to avoid the recurrence of speculation after the blockchain is hot again.

The rapid development of Bitcoin turns out to be a simple encryption point-to-point payment system. In just 10 years, it has attracted 20 million encrypted digital currency users around the world, and the currency price has risen from a penniless to a maximum of US $18000. At the same time, it has also attracted attention and research on block chain technology.

From hot speculation to technical heat, blockchain in this short history, took a lot of detours. For example, when ICO (first token issue) first emerged, it was regarded as a new way of financing because of its low cost, low threshold and trustworthiness. Yao Qian, former director of the Digital Monetary Research Institute of the Central Bank, wrote an article "Digital encrypted token ICO and its Supervision Research" in Contemporary financier magazine, giving some approval to ICO and put forward regulatory suggestions. Before regulatory action took place, ICO was soon spoiled by speculators, and people from all walks of life began to make up names, backgrounds, and projects to finance through ICO. In the whole In a bull market in 2017, a variety of counterfeit coins were born, and many unknown people changed to become so-called "currency tycoons." after May 2018, the currency circle entered a bear market, Bitcoin fell from a high of $20000 to a low of $3500, and Ethernet fell from a high of $1400 to a minimum of $100. The bull market also tarnished the reputation of the block chain. Taking advantage of that craze, all kinds of industries have come to rub the hot spot of block chain, there have been block chain mobile phones, block chain food traceability system, some pyramid selling scams, funds with blockchain. Name to cheat. The word "subversion" is often talked about by them: the "decentralized" blockchain can subvert banks, subvert financial institutions, subvert the credit system, and the blockchain seems to have become a universal subverter. Two years later, the block chain did not subvert any industry, but because of all kinds of scams, the first "subverted" itself. The traditional venture capital structure, which has shown great enthusiasm for the technology, has slowly turned to caution and even suspicion. This can be explained by the fact that the listing applications of the three largest mining machinery producers in Beit mainland, Jiannan Yunzhi and Yibang International have been rejected by the Hong Kong Stock Exchange.