Black-Hole Reversal and Primordial Re-Emergence in USP Field Theory: From Terminal Delta-f Saturation to Hydrogen Fog, Population III Processing, and Galactic Accretion

This document refines the USP Field Theory reversal-lifecycle model by replacing older loop-language with a staged, astrophysically ordered framework. A black-hole reversal is not treated as a local Big Bang, nor as an event that immediately creates galaxies. Instead, it is interpreted as a release from terminal Delta-f saturation, followed by nuclear re-locking, neutral hydrogen formation, light-coupling, Population III star ignition, supernova enrichment, dispersal, halo capture, and eventual accretion into mature galactic basins. The central correction is that reversal produces a primordial-material pathway, not an automatic galaxy. Whether the released material becomes an isolated Population III star-forming cloud, diffuse halo gas, compact remnants, or fuel for an existing galaxy depends on local Delta-f gradients, density, turbulence, metallicity, relaxation time, and environmental confinement. The document preserves standard cosmology, recombination physics, stellar evolution, nucleosynthesis, and galactic structure formation as the predictive baseline. USP Field Theory provides an interpretive mechanism layer using operational quantities such as Delta-f proxy = E_eff / h, the locking index eta_lock = Delta-f_proxy / Delta-f_bind, and large-scale mismatch-gradient motion proportional to -gradient Delta-f. Key observational connections include the CMB resonance-floor interpretation, 21-cm cosmology during Cosmic Dawn and the Epoch of Reionization, Population III feedback, galactic halo archaeology, metallicity gradients, compact-remnant distributions, and black-hole mass clustering. The paper also includes explicit guardrails: it does not claim that black-hole reversal is observationally confirmed, does not claim that the CMB proves USP, and does not assign unsupported fixed Delta-f values to electrons, protons, neutrons, or hydrogen.