Chapter 62: Why There Is No Barrier

The 1st Edition posed a “Representation Barrier”: no faithful encoding {0,1}^* → Addr(τ) preserves complexity separation. This chapter diagnoses that barrier as a category error—asking an E₂ question with E₀ tools—and proves that at E₂, no encoding gap exists. The chapter completes the No Barrier arc by delimiting what has been proven (τ-P_adm = τ-NP_adm) and what remains (the bridge to classical P vs NP, deferred to Part X).