Chapter 2: The Categorical Resolution: Life as E₂ Enrichment

the relevant chapter ended with a promise: a categorical definition from which the seven hallmarks follow as theorems. This chapter delivers the roadmap. Book V’s complete E₁ physics—black hole topology, defect thermodynamics, TOV thresholds—is received as raw material. The Canonical Ladder Theorem (Book III, Part I) proves exactly four self-enrichment layers E₀ → E₁ → E₂ → E₃; Book VI occupies the E₂ layer. Two earned predicates—Distinction (self/non-self boundary) and SelfDesc (internal decoding loop)—are previewed; their conjunction defines Life. The 4+1 sector template, organized by the five generators of the τ-framework, previews the book’s biological structure. A fundamental structural inversion is announced: formal machinery first (Part I), biology organized by sector (Parts II–VI), cosmic life (Part VII), bridge to E₃ (Part VIII).