Step 079 — Layer separation from physics

Distinction alone remains $E_1$.

Book / layer. Book VI · E2
Macro step. CS-07 — Recover Life as a Structural Class
Short routes. https://prrp.site/s79 · https://prrp.site/s079

Status tags. bridge

Construction role

Distinction alone remains $E_1$. SelfDesc is the genuinely new $E_2$ requirement. A physically bounded system may be stable, energetic, and sharply separated from its environment while still failing to read and rebuild its own boundary as code. This is the Book VI separation test: life is neither reducible to physical boundary alone nor added as a vital substance.

What this step earns

Layer separation from physics is made addressable as Step 079 in the fine-grained Construction Spine routing layer.

• Routing scaffold. Detailed earned-output extraction is pending the source-map pass.

What this step does not yet establish

This route exposes the RC3 construction step for inspection. It does not by itself establish peer review, empirical adequacy, or final manuscript-level source closure.

Source anchors

• Full Construction Spine RC3 whitepaper source (papers/whitepapers/panta-rhei-construction-spine-e0-e3/main.tex:1079)

Manuscript extraction state: Detailed source anchors pending extraction.

Anchor classification: whitepaper source resolved; manuscript extraction pending; Registry extraction pending; TauLib extraction pending.

Formalization and verification

Registry links: Registry extraction pending.

TauLib modules: TauLib module extraction pending.

Dependencies

• Previous: Step 078 — Distinction plus SelfDesc
• Next: Step 080 — Life Loop and metabolic closure

Navigate

• 100-Step Routing Ledger
• Ten-step Construction Spine