These developments help locate where ICH can be tested. None is presented as confirmation, and none redefines the pre-registered P1–P13 prediction structure.
NASA Roman Space Telescope · Future independent test of P4
Launched on 30 August 2026, Roman will provide a future cross-survey test of Euclid large-scale residuals using a different instrument, wavelength range, survey strategy and analysis pipeline. Roman does not add or revise an ICH prediction: agreement in direction or structure across overlapping fields would strengthen P4, while a robust Euclid-only pattern within Roman’s adequate sensitivity would count against it.
LIGO / gravitational-wave physics · Framework-level analogy
General Relativity admits persistent geometrical information after a transient process. V3.2 uses gravitational-wave memory as a conceptual comparison only: radiative memory and primordial ICH initial data have different mechanisms, regimes, boundary conditions and observables.
Euclid · Relevant to P9 and P11
Euclid reported 31 quasars at 6.6 < z < 7.8, including 12 at z ≥ 7. Their existence is not an ICH test by itself. The sharper test is whether the extreme population retains the predicted environmental or cosmic-web dependence after standard controls.
DESI DR1 · Relevant to P10
A reported gigaparsec-scale anisotropic structure above 3σ was challenged by a reanalysis finding consistency with statistical isotropy. V3.2 treats the disagreement as evidence of the test’s relevance and systematics sensitivity—not as evidence for ICH.
JWST · Relevant to P9; indirectly P11
Very early massive or mature systems motivate rare-environment tests. ICH does not predict universal accelerated growth: any allowed effect must be selective, environmentally conditioned and compatible with ordinary astrophysical explanations.
Seventy dark-galaxy-system candidates within roughly 50 Mpc provide a pre-DR1 target set for the P12 mass–luminosity–topology test.
Roman is a future independent test channel for P4, not a new prediction. GW memory is an analogy. JWST and the Euclid quasar sample identify relevant populations. DESI identifies a contested large-scale test domain. FAST supplies candidates. The framework is tested only when its pre-specified environmental, topological and falsifiability conditions are applied.