The Rockets' series against the Warriors is very exciting. As a Rockets fan, it's complicated to see the Rockets go out in G6, but the Golden State Warriors are undoubtedly the better team. Let's help Harden win first. Harden's performance is already phenomenal, and he can't ask for better performance. In this round of the series, he averaged 34.8 points per game and his true shooting percentage reached 59.4%. Over the past few days, people on the Internet have been complaining about Harden. Many people think that the Rockets lost because Deng didn't take over the game at a critical moment, or they said that he was walking during the game, saying that Paul was too late, and that 90 million Capet Rooney, who was pulled by the basic salary, exploded... These statements are somewhat one-sided. Starting from the first principle, the victory of the Warriors is the victory of the "system", and the root cause of the Warriors' victory over the Rockets is the principle of the blockchain.

In fact, the victory of the Warriors is the victory of the "system", which is a serious "blockchain" problem. The "fault tolerance" of the Warriors' system is higher, and the "decentralized" system of the Warriors is better than the "centralization" of the Rockets. The system is the underlying logic of victory and defeat.

"Fault tolerance" less mysterious? Let me explain with a picture first

The multiple engines of the aircraft are "fault-tolerant" design, even if one engine fails, the other engines can still fly

The Golden State Warriors' 5 giants lineup is also a "fault-tolerant" design. Even if the cousin, KD is injured, the system can still run

• fault tolerance"fault tolerance"

The "fault tolerance" of the system, called fault tolerant in English, is the ability of the system to still operate normally when some components fail. A system that is not designed with fault tolerance in mind can fail completely in the presence of minor faults. Fault tolerance is very critical to the system, and the original fault tolerance is everywhere.

• fault tolerance"fault tolerance"

In basketball, a team is a system. The Golden State Warriors, who just entered the Western Conference Finals, demonstrated the fault tolerance of the system. The configuration of the Big 5 has made the defending champion a highly "fault-tolerant" system. Without Cousins, the Warriors have one less option to play, but after all, they still have the hole card of the dead five. After 5 games, Durant averaged 42.4 minutes per game without playing in the fourth quarter of G5; Thompson averaged 41.9 minutes per game; Green averaged 40.8 minutes per game; Curry averaged 40.3 minutes per game; Iguodala , averaging 34 minutes per game; this kind of playing time is the real cause of Durant's calf strain.

Without "Reaper" Durant, the Warriors still have a chance to make mistakes, and they still have the Splash Brothers. The Golden State Warriors have entered the most difficult moment of Cole's coaching era, but Curry can rebound strongly in the second half with 0 points and 3 fouls in the first half, dominating the game with 33 points in the half, and the 33 points in the half is also the second highest in NBA history half-time scoring record. Thompson scored 27 points on 50 percent shooting. There are also former FMVP Iguodala and All-Star Odaily player Green. In the 82-game regular season and 4-round playoff series, teams with high fault tolerance will eventually win the championship. There are many examples of changing the trend of the series due to core player injuries and changing the ownership of the championship.

Therefore, in the basketball world of the NBA, "high fault tolerance" = high probability of championship.

• "Fault Tolerance" of Blockchain System

Distributed systems, including blockchains, need to be somewhat fault-tolerant. The purpose of the blockchain consensus mechanism design is to achieve credibility in a network composed of multiple untrustworthy nodes. It is very necessary for the consensus mechanism to assume that some processes and systems have high delays and cannot communicate in a timely manner. Therefore, the consensus mechanism needs to have a certain degree of fault tolerance.

Nodes of a blockchain system may fail for a variety of reasons, such as silent failure (the processor cannot work after reaching the end of its useful life), or the system cannot be terminated, permanently generating a stream of constant or seemingly random values. Malicious challenges to fault tolerance are also common, including some non-accidental collusion attacks: such as 51% attacks, hard fork attacks, double flower attacks, Sybil attacks, and DoS attacks, etc. Fault tolerance means that in the case of various problems, it still does not affect the normal operation of the system.

When it comes to the fault tolerance of distributed systems, we have to mention the famous "Byzantine fault tolerance". As early as 1982, Byzantine failures were solved by American computer scientist Leslie Lambert in the paper "ACM Transactions on Programming Languages ​​and Fundamental problems in point-to-point communication presented in Systems. The implication is that attempting to achieve consensus by means of message delivery over an unreliable channel with message loss is impossible. Therefore, research on consistency generally assumes that the channel is reliable. This problem is now known as the "Byzantine Generals' Problem". Byzantine Fault Tolerance is required in aircraft engine systems, nuclear power plants, and almost any system whose behavior depends on the results of a large number of sensors. Byzantine Fault Tolerance (BFT), which is used to solve the Byzantine general problem, is the earliest "consensus mechanism". Byzantine fault-tolerant systems are used in many scenarios. In blockchain applications, they are generally suitable for private chains and consortium chains that require strong consistency.

Therefore, in the blockchain world, "high fault tolerance" = high stability

The Golden State Warriors are a decentralized mesh system. In contrast, the Houston Rockets are a near-centralized system with Harden as the center of offense (Harden's round share reached 35.2%) and defense with Tucker as the core. It is relatively easy to defend a centralized system.

In terms of efficiency value, the mesh multi-center Warriors are a more efficient team. In the playoffs, Durant's efficiency value of 31.1 ranks third in the league, Harden's efficiency value of 28 ranks fifth, and Curry's 23.5 and Dreaming Green's 23.4 rank 11th and 12th in the league, respectively. Three Warriors players in the top 20 supported the multi-center system, while the Rockets only had Harden in the top 20.

The Rockets' tactics are based on star singles, while the Warriors' multi-center system is based on conducting the ball. In terms of assists in the playoffs, 4 of the dead 5 players rank in the top 30 in the league in terms of assists per game. Among them, Dreaming Green ranks 4th in the playoffs with 8 assists per game, Curry ranks 15th in assists with 5.1 assists, Du Rand ranked 17th with 4.9 assists, and Iguodala also ranked in the top 30 with 4 assists. In contrast to the Rockets, only Deng and Paul ranked in the top 30 (Harden ranked 9th with 6.6 assists, and Paul ranked 14th with 5.5 assists).

epilogue

The Warriors' system has a higher "fault tolerance" and a "higher probability" of winning the championship. The Warriors are a network system with a higher degree of "decentralization". Compared with the more centralized Rockets, they have a systematic advantage. This is the game The underlying logic of victory and defeat.