The efficiency of blockchain is too low

1. blockchain technology will not affect efficiency and waste computing power. The key is to see how to innovate in a mode and how to use blockchain technology efficiently to achieve the effect of the mode
blockchain is essentially an encryption algorithm, which is based on the principle of hash 256 bit algorithm to achieve information security; The application of modern information will become more and more global and universal. Besides the basic requirements of anti tampering, anti repudiation and trustworthiness, the protection of privacy needs to be strengthened. The blockchain technology is proced because of the development of modern cryptography. The cryptography used today is the result of cryptography 20 years ago, Therefore, in order to apply the blockchain technology to more participation scenarios, especially in the Internet economy, more verification is needed to verify whether the existing encryption technology can meet the demand, and more in-depth integration of cryptographic frontier technology and continuous innovation are needed
as long as we use blockchain to make innovations in accounting methods based on our own mode, it will not affect efficiency and waste computing power, but will shorten the time and improve efficiency.

2. At present, there are four main types of consensus mechanisms: pow, POS, dpos, pool
1. POW workload proof, which is familiar with mining, calculates a random number that meets the rules through and or operation, that is, obtains the bookkeeping right, sends out the data that needs to be recorded in this round, and stores it together with other nodes in the whole network after verification
advantages: complete decentralization, free access of nodes
disadvantages: bitcoin has attracted most of the computing power in the world, and other blockchain applications using POW consensus mechanism are difficult to obtain the same computing power to ensure their own security; Mining causes a lot of waste of resources; The period of reaching consensus is long, which is not suitable for commercial application.

2. Proof of rights and interests of POS, a mechanism of upgrading consensus of pow; According to the token proportion and time of each node; It can rece the difficulty of mining in equal proportion, so as to speed up the speed of finding random numbers< Advantages: to a certain extent, it shortens the time to reach a consensus
disadvantages: mining is still needed, which does not solve the pain point of commercial application in essence

3. Dpos share authorization certification mechanism is similar to the voting of the board of directors, in which the coin holders cast a certain number of nodes to verify and account on their behalf
advantages: greatly rece the number of participating verification and accounting nodes, which can achieve second level consensus verification
disadvantages: the whole consensus mechanism still depends on token, and many commercial applications do not need token to exist

4. Pool verification pool, which is based on traditional distributed consistency technology and data verification mechanism; It is a consensus mechanism widely used in the instry chain at present.
advantages: it can work without token, and realizes second level consensus verification on the basis of mature distributed consistency algorithms (pasox and raft)
disadvantages: the degree of decentralization is not as good as that of bictin; The multi center business model is more suitable for multi-party participation

it has great advantages in using consensus mechanism to ensure data consistency (the consensus mechanism is first proposed by ripple, and the network transaction synchronization mechanism with data correctness priority. In the consensus network, no matter how the software code changes, if you can't reach a consensus, you can't enter the network, let alone fork)
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PS: a little black, although the consensus mechanism can absolutely ensure that there will be no hard bifurcation at any time. However, the disadvantage of this mechanism is obvious, that is, it is much longer than the current bitcoin network to reach a consensus with other nodes. In extreme cases, the consequences of disconnection in ripple consensus mechanism network are also very terrible

it is possible that one day after the power failure in your home, the whole system will no longer be able to reach a consensus with other rippled nodes (in fact, the consensus mechanism requires more than 80% of the nodes to acknowledge your data before your submission will be accepted by other nodes, otherwise it will be rejected by exclusive nodes), Even you can only empty all your 500 GB data and resynchronize to connect to other ripple nodes

so at present, the existing rippled end is not suitable for civil use (if it is commercial, the impact is relatively small. For example, RL's own rippled node is hosted in Amazon cloud data center. If it has no response for a long time, it can make high claims, and there is almost no break in that place except for large disasters). This is one of the aspects RL has always wanted to improve.

3. Hello, I'm an old user of Feixun. It's easy for me to buy it at 0 yuan. It's simple, that is, they will return you the full amount of cash after purchase. This purchase mode has been carried out by fisun for several years, and it has never been overturned. I bought their router and air purifier, and this time I bought two C8. How to say, investment is bound to have risks, but we should be good at judging the trend. Everything will fall when it reaches the peak, and rise when it reaches the lowest point. Now it's in a bear market, it won't go up or down, but I personally think it will go up in the future. At present, Ethereum's blockchain technology is up-to-date and Turing is complete. Many experts predict that within 2-3 years, Killer Software Based on Ethereum's blockchain technology will appear. This is my personal point of view, which needs the subject's own judgment.

4. Single string capacity multiplied by number of strings and total capacity (total energy)

5. In fact, the level of Kung Fu has a physical change, but I don't know. Your martial arts is called scientific martial arts.

6.

From the perspective of the history of human technological development, real scientific and technological innovation is often suspected at the initial stage, even Einstein's theory of relativity. However, it seems that blockchain has not experienced this kind of scientific query, but has been hyped since the concept was launched. However, several years have passed since its launch. People have not heard of any country or company that has really solved practical problems with blockchain technology and created new value. If a technology has few practical effects, but many people say it is good, we can not rule out the suspicion of hype

at present, China's prevention and control of systemic financial risks has entered a new stage, with tight time and heavy tasks. However, whether it is to improve financial efficiency or prevent and control financial risks, blockchain may not be a good helper. In this sense, in order to prevent emerging financial risks, it is better for blockchain to stay away from finance

content source: Economic Daily

7. The core advantage of blockchain technology is decentralization. It can realize point-to-point transaction, coordination and cooperation based on decentralized credit in a distributed system without mutual trust by means of data encryption, time stamp, distributed consensus and economic incentive, so as to solve the common high cost, low cost and low cost of centralized institutions Low efficiency and data storage insecurity provide solutions
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry.

8. In addition to digital currency, blockchain can be applied in many fields. I don't know why you think it is unnecessary. Blockchain can help the real economy rece operating costs, improve manufacturing efficiency, and establish a faster and better credit mechanism. So many advantages are unnecessary. Moreover, digital currency does not exist. HNB, for example, is the next generation of decentralized blockchain economy built in combination with the real economy. I think this kind of blockchain project relying on the real economy can be killed in the current situation of recession.

9. Yes, because blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and computer technology, which can realize decentralization, openness, autonomy, non tampering information, anonymity, etc. for users, it can effectively protect the user's account information.