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MENTAL MODEL · M2107

Byzantine Generals Problem

Byzantine Generals Problem
DecideHigh supportGame Theory
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

A group of generals besieging a city must act in unison (all attack or all retreat) to win. However, generals can only communicate via messengers, and some generals may be traitors (deliberately sending false messages). How to reach agreement (consensus) in the presence of traitors and unreliable communication? -

SCAFFOLDING EFFECT

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The cornerstone of collaboration in zero-trust environments. - This is the core problem solved by blockchain and Bitcoin. In the absence of a centralized authority (the emperor), how to prevent bad actors from undermining the system? The answer is proof-of-work (PoW) or high-redundancy verification. In the workplace, if you suspect there are "traitors" (blamers/saboteurs) in your team, the only way...

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The Byzantine Generals Problem uses the metaphor of generals coordinating an attack via messengers to illustrate how to achieve reliable consensus in the presence of traitors (unreliable or malicious nodes). It is a classic challenge in distributed consensus.

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/Byzantine_faultZH · Explicit
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