Limitations of a popular science blockchain
Author: NEST Enthusiast_Nine Chapters Tianwen
Author: NEST Enthusiast_Nine Chapters TianwenThe current blockchain structure is not omnipotent as we imagined. Although it has achieved decentralization and non-tamperable characteristics through consensus, it is also a distributed system with repeated calculations and redundant storage. If you count smart contracts , that also includes the repeated auction property for each transaction
. Such a system is obviously not omnipotent, and even has many limitations. Here, we only talk about the limitations of the blockchain.The first is the calculation problem caused by the consensus mechanism. Leaving aside the high-concurrency centralized computer clusters, even computers that are the same as nodes can handle computing problems better than blockchains.This is because the consensus process takes up a lot of time, whether it is calculating HASH or communicating, it represents a loss of efficiency.
Therefore, trying to use blockchain to solve conventional computing problems cannot compete with traditional computer systems at all.Similarly, since the blockchain ledger is fully backed up, from a storage perspective, this causes a huge waste of resources. And because the belief of the early blockchain is that everyone can check the ledger, the expectations for node storage performance are extremely low, otherwise ordinary people can only rely on professional institutions to check the ledger. This feature leads to a very small block size and storage becomes very expensive, which is evident on ETH.
So someone proposed the idea of super large blocks, but this is only a temporary solution, not the root cause. If the 100% consensus is not broken, the storage of the entire blockchain system will not be scalable.In addition, Bitcoin and Ethereum can be understood as a completely transparent general market. In this market, every transaction must participate in the market-wide auction, which brings about economic problems: if the demand for certain transactions It is stable and continuous, and the auction will undoubtedly increase this cost, and even hinder the continuity of the transaction. In other words,
In a class of dynamic services that need to be continuous and stable, the stronger the correlation and dependence with time, the less suitable for the current architecture of the blockchain.There is another limitation of the blockchain, that is, the fact that the chain is very difficult
. The facts we understand refer to things that happen objectively. However, in the world of blockchain, the meaning of objective is consensus. Therefore, although events occur objectively, events that do not follow the logic of the blockchain cannot be automatically accepted as facts by the system. , making it impossible to provide more services around these events. For example, the simplest price fact is difficult to transfer to the chain with a simple solution for other contracts to call. It is necessary to design a verification idea that is almost equivalent to the blockchain consensus.
Many people simply see the attributes of blockchain decentralization, non-tamperability, and convenient transactions, wishful thinking that it can solve all trust problems, and even have a vision for it that goes beyond the Internet: change everything and be omnipotent.Here we just briefly mentioned some limitations of the current blockchain, but in terms of application requirements, the scope of limitations may be even greater, and it is not as omnipotent as imagined.
