Peer review galaxies-05-00047-v2 Bruce Partridge

In this technical note we provide a variational-consistency assessment of the article “Can CMB Surveys Help the AGN Community?”. The manuscript argues that CMB experiments such as ACT, SPT, and Planck can substantially contribute to AGN physics by providing large catalogues of compact sources, multi-frequency fluxes, and coarse polarization information. However, the analysis relies entirely on phenomenological catalog statistics produced by low-resolution CMB instruments and does not provide a physical model linking CMB-scale measurements to intrinsic AGN jet dynamics or emission mechanisms. Using the Universal Psi Equation as a closed generative variational framework, we show that none of the quantities discussed in the manuscript — source counts, spectral energy distributions, variability, or polarization fractions — can be derived or interpreted without a fundamental field-level description of source structure. The CMB-based characterization of AGN polarization is dominated by beam-averaging, selection bias, and noise-corrected estimators that do not correspond to physically meaningful jet parameters. The report concludes that the scientific claims of the original article are descriptive rather than predictive and lack theoretical grounding required for inference in high-energy astrophysics.