Chapter 76: The Enrichment Frontier

The two preceding chapters established what nobody has achieved (the relevant chapter, I.D80) and why K5 avoids the standard obstruction (the relevant chapter, I.T39). This chapter maps the enrichment ladder E₀ → E₁ → E₂ → E₃ — first introduced in the relevant chapter — onto the existing literature, classifying each transition by its novelty status. E₀ → E₁ is achievable with existing techniques. E₁ → E₂ requires a novel combination of known tools. E₂ → E₃ is genuinely unprecedented at meaningful mathematical strength. The Enrichment Frontier Classification (the relevant definition, I.D82) makes this grading precise. The Scale Declaration (Remark [rem:scale-declaration], I.R21) makes explicit what Book III proposes: an attempt at something that has not been done before, positioned by an architecture that avoids the known obstructions.