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To understand the origin of blockchain, you may lack a picture -- Part 5: Postscript to blockchain

Time : 07/08/2022 Author : o1dhja Click : + -
        Blockchain technology has just begun to rise, and many issues are still at the stage of academic discussion. For example, is it really necessary for us to build a global open blockchain network? For example, is POW mode better or POS mode? The emergence of such problems once made us doubt the blockchain technology. In fact, what we need to do is very simple and troublesome, because we have only one problem to solve, that is, the "trust" problem. After the operation of the global blockchain network, many institutions began to consider whether their own institutions or industries could establish their own closed networks? The resulting problems have triggered the classification of blockchain networks. At present, blockchain networks can be divided into public chains, private chains and alliance chains:.
        However, the internal information of the same blockchain network has realized interaction, but with the increasing number of blockchain networks, the interaction between multiple blockchains has become a limiting condition for the development of blockchain. From the perspective of both public and private chains, the realization of cross chain technology has become one of the key factors for the development of blockchain. It can build bridges between isolated blockchains. Therefore, the research of cross chain technology has also become one of the important research directions of the blockchain industry. Cross chain technology can be divided into four types: Notary mechanism scheme, side chain / relay chain scheme, hash locking technology scheme and distributed private key control scheme. In the process of building the network platform, we cannot but consider the security factors of the blockchain network, so we have collected and sorted out the common attacks and problems of the blockchain network:.
        In the process of blockchain construction, academic discussions have never stopped. The question of which is better, POW or POS, the significance of blockchain network construction, and the concept of decentralization are all the focus of discussion. Here, I would like to express my attitude and views on these issues on behalf of myself. Please correct me. Which is better about POW or POS? I think the practice of Ethereum has explained this point. It is most appropriate to use different schemes in different periods. There is no absolute who is better. POW is easier to let more people participate, and POS is more in line with the social operation mechanism; POW consumes more power, but it also promotes the development of surrounding industries, It brings more opportunities and values to the society (for example, most mines are located in remote places or places with abundant power resources, because the electricity charges in these places are lower, which will reduce the mining costs. However, mining can also drive the development of local industries and indirectly promote local development; POS is more centralized, but it can also improve the efficiency of the blockchain network, which is easy to achieve the purpose of capacity expansion. In addition, what is "decentralization" and What is the purpose of "decentralization"? We will discuss it below. Maybe POS will not be so annoying at that time).
        As for the meaning of "decentralization" and the purpose of "decentralization", I quote a passage on the Internet to explain it, which may be more professional:. Many people think that decentralization means there is no center. This is indeed the simplest and direct meaning obtained from the literal meaning. I once thought so. But when I deeply understand the concept and dimension of decentralization, I suddenly feel a little confused. Without a center, how does the blockchain operate? It was not until I saw a top blockchain tycoon say that there are three types of decentralization that I suddenly realized that the three types mentioned by the tycoon are architecture decentralization, control decentralization and logic decentralization.
        People usually understand that the "decentralization" of the blockchain refers to structural decentralization and political decentralization. However, it is logically centralized. The blockchain system is guided by a centralized idea, which is also a common consensus. Does this mean that in the blockchain system, absolute "decentralization" is "moon in the water, flower in the mirror". Therefore, instead of blindly pursuing "decentralization", we should think more about what we want to achieve through "decentralization". We all know that only by looking at the essence through the phenomenon can we fundamentally solve the problem. When people talk about decentralization, what are their demands and goals? We need to realize that "form serves the purpose". If the purpose can be achieved, the form is not so absolute.
        When we look at problems, we should adopt a practical attitude rather than an ideal formalism, and too stubbornly emphasize the role and influence of "decentralization". Decentralization is not our ultimate goal. For the author, what attracts me most about decentralization is the effective prevention of power monopoly and the high fault tolerance of the system. I believe this is also the charm of "decentralization" in the hearts of the public. The idea of Web3.0 is not yet mature, but some institutions have started to study it. On December 1, 2018, Wanxiang blockchain laboratory, matrix element technology, computing power think tank and other units jointly initiated the establishment of "Zhenjin society", aiming to create the first platform for privacy protection and data security in China in the era of Web3.0.
        This is the first time that industry leaders and enterprises have raised Web3.0 to a strategic level in China. Coincidentally, in the past few months, at many blockchain conferences held in the United States and Europe, Web3.0 has replaced blockchain and become the focus of discussion. Recently, there is an argument that Internet entrepreneurship is dead, and the 10-year golden period of entrepreneurship from 2008 to 2018 has passed. On the surface, it is true. In the environment where capital, data and flow resources are highly monopolized, almost all entrepreneurs and innovation projects are on the road to death or defection. Web3.0 will break this monopoly from the bottom and rekindle the spark of innovation.
        At present, these sparks are still very weak, but a single spark can start a prairie fire. For practitioners in the blockchain industry, when they have a deep understanding of Web3.0, they will find that blockchain is not the beginning of Web3.0, nor the end of Web3.0. Blockchain is the golden key to open the door of Web3.0. People who understand the concept of blockchain will understand Web3.0 better and will gain the greatest benefits in the coming tide of Web3.0. The concept of decentralization is like a sentence in out of control, which perfectly interprets the idea of decentralization, that is, "there is no beginning, no end, and no center, or on the contrary, there are beginning everywhere, ends everywhere, and centers everywhere.
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