Galaxy rotation problem

Structural Challenge

This response is paired with its canonical Structural Challenge: Galaxy rotation problem (P026) in the Physics Structural Challenge Ledger.

τ response

Evidence route

This response is supported by 4 canonical registry items in the τ Corpus.

• V.C13 — Baryonic Tully--Fisher from Capacity --- V.R20 direct problem account confidence: high
• V.P56 — Capacity Gradient as Apparent Dark Matter --- V.P20 direct problem account confidence: high
• V.P70 — RAR from Capacity Gradient --- V.P34 direct problem account confidence: high
• V.T85 — Flat Rotation Curve Theorem --- V.T37 direct problem account confidence: high

Notes

Verification

• Verification routeempirical_accountability
• Verification statuspending_external_review
• External statusexternally_open

External-review boundary

External cosmology review of the τ formulation versus ΛCDM and dark-sector alternatives; comparison against named experiments (Planck, DESI, Euclid, JWST) where falsification paths exist.

Provenance

• v1 predecessorphys-galaxy-rotation-problem (promoted one to one)
• v1 mapping recovered fromf534b3fb^

Status disclaimer

A Challenge Response reports the program's current internal stance against a canonical Structural Challenge. It does not imply external verification, scientific consensus, philosophical settlement, or final proof. Read it together with its evidence route, registry references, verification status, and external-review boundary.