Stage 1: security council can override with 75% (at least 6-of-8) approval. A quorum-blocking subset (ie. >= 3) must be outside the primary organization. Hence, there is a high, but not impassable, barrier to overriding the proof system.
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The math of when stage 1 and stage 2 make sense
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Ethereum rollups at Stage 1 require a 75% approval (at least 6-of-8 votes) from the security council to override trustless proof systems, ensuring at least three external council members
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