This monograph presents a radical re-interpretation of Baryon Acoustic Oscillations (BAO) within the framework of Energy Quantum Theory (EQT) —a process-ontological physics that replaces static "entities" with the dynamics of the frequency-resolved energy quanta density field (r, t, f). We demonstrate that the CMB temperature fluctuations are not random primordial perturbations, but high-frequency gradient transients (H 0) generated by the first astrophysical structures (e. g. , Population III stars, primordial black holes). These transients drive a full-spectrum cascade via the nonlinear term k H², producing low-frequency energy quanta (fL 10^-16\, Hz) whose collective gradient flow manifests as the BAO "sound wave. " Crucially, we provide the first ab initio derivation of the sound speed cₛ = c/3 from EQT’s master equation, showing it emerges from the balance between frequency-dependent diffusion (D (f) f^-1) and dissipation ( (f) f) —not from an ad hoc equation of state. The observed BAO scale (rₛ 150\, Mpc) is then identified as the freezing length of this wave at recombination (z 1100), where the system transitions into a local pre-freezing state due to dissipation dominance (> S). This BAO mechanism is unified with the JWST "precocious galaxy" phenomenon: both arise from the same high-frequency driver, with different frequency modes freezing at distinct times according to the universal freezing spectrum t₅ₑ₄₄ₙ₄ (f) f^-1. Furthermore, the planar morphology of galaxies and the anisotropy of the BAO signal are explained by the cosmic web topology of the ultra-low-frequency dark energy field (10^-4\, Hz), which guides the directional propagation of the gradient flow. The work culminates in three falsifiable predictions: (1) BAO–CMB cross-correlation with significant dipole modulation (p 1100) 21cm BAO scale rₛ < 147\, Mpc; (3) JWST galaxy spin axes aligned with DESI-identified filaments. By grounding BAO in a causal, cross-scale, and non-teleological process ontology, this monograph resolves the "time coincidence crisis" of early structure formation and establishes BAO not as a passive "standard ruler, " but as the first audible heartbeat of the cosmic rhythm.
KaiSheng et al. (Mon,) studied this question.