Post-Decentralization C: The Legitimacy of Forks: Dimensionality Lift and Structural Evolution in Decentralized Governance

Abstract

Traditional distributed systems theory has long encoded hard forks as a signof consensus rupture and governance failure. This paper proposes an alternativeanalytical framework: in the practice of decentralized governance, a hard fork isnot a system malfunction but a structural mechanism through which incommensurable cognitive architectures achieve legitimate evolution via the separation ofconceptual space when a dispute touches upon the fundamental commitments ofthe protocol. The paper first redefines a fork as a jump of the authority to modify rules across governance levels—a soft fork adjusts parameters within existingconstraints, while a hard fork alters the boundaries of the constraints themselves,constituting a “dimensionality lift” operation in governance space. Second, it distinguishes three normative types of forks—consensual, controversial, and cognitivelyincommensurable—and argues that only the third type reaches the governancelimits of soft forks. Using the 2015–2017 Bitcoin block size war and the 2016 TheDAOincident as core cases, the paper reveals the internal dynamics through whicha controversial fork evolves from a parameter dispute into framework incommensurability, and how an extreme semantic crisis forces a community to confrontthe tension between code rules and substantive justice. Based on this analysis, thepaper proposes three normative criteria for fork legitimacy—feedback anchoring integrity, cross-verification operability, and conceptual-space appropriateness—andargues that forks, as an “exit-separation” mechanism, possess a meta-governancefunction in decentralized governance analogous to the right of exit in traditionalpolitical theory.