So what exactly is consensus? Consensus mechanism is one of the core concepts of Bitcoin, only when we fully understand consensus, can we be more clear about the value that Bitcoin brings to us.
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This is my understanding of some basic concepts of consensus. What's your point?
Consensus mechanisms of Blockchain are really hard to understand for ordinary people, as well a bit longer but nice post @RainbowKun.
You know not only Bitcoin but also Consensus mechanisms are used to computers. it is fault-tolerant, which means it can respond when changes occurred, and keep the changes as a record for the future. For Bitcoin, another name of the Consensus mechanism is
PoW.