Cymatic Emergent Cosmology: Planck-Consistent Matter-Energy Fractions from Scalar Field Resonance

We present UUCET v5. 0 (Universal Universe Cymatic Emergence Test), a three-dimensionalscalar field simulation implementing Harmonic Resonance Theory (HRT) dynamics. Startingfrom randomized initial conditions with no cosmological parameters inserted, the simulatorevolves three coupled scalar fields — a dark energy proxy field φ, a dark matter proxy field χ, and a baryonic matter proxy field ψ — under parametric resonance, spiral driver, and Lorentzcoupling dynamics. After 4, 000 timesteps the simulation spontaneously produces matter-energyfractions of dark energy 68. 77%, dark matter 26. 23%, and baryonic matter 5. 00%. The PlanckCollaboration reports 68. 3%, 26. 8%, and 4. 9% respectively — agreement within 1% across allthree components without parameter tuning. The foundation frequency ω₀ = 0. 313 governing thesimulation dynamics is the same value independently derived in prior PDRI publications fromblack hole acoustic analog predictions (McKenna, 2025a) and particle mass derivations (McKenna, 2026). Although this paper appears fourth in the PDRI publication sequence, thesimulation results documented here predate and provided the foundation for the preceding threepublications, as evidenced by archived development records at paxdualon. org. Large-scalestructure emerging from the simulation — filaments, voids, and matter concentration nodes —was independently identified as matching real astronomical observations by three separate AIsystems shown the simulation output blind. Three falsifiable predictions are presented. The observed matter-energy composition of the universe — approximately 68% dark energy, 27% dark matter, and 5% baryonic matter — represents one of the most precisely measuredand least theoretically understood results in modern cosmology. The Planck Collaboration hasconstrained these fractions to sub-percent precision Planck Collaboration, 2020, yet theStandard Model of cosmology (ΛCDM) treats them as free parameters, inserted by hand rather than derived from first principles. Why these specific values? Why this specific ratio? Nomechanism within ΛCDM generates them from deeper physics. Harmonic Resonance Theory (HRT) proposes that the universe is fundamentally a resonantsystem governed by two coupled scalar fields whose dynamics produce observed structurethrough cymatic standing wave formation McKenna, 2026. The characteristic foundationfrequency of this system, ω₀ = 0. 313, emerges independently from cosmological simulation asthe universe's matter fraction ΩM = 0. 313 ± 0. 007 Planck Collaboration, 2020. This samefrequency was subsequently used to derive the tau lepton mass to 99. 94% accuracy, thecomplete lepton hierarchy, and the gravitational constant G to 99. 9% accuracy from firstprinciples McKenna, 2026. The simulation documented here — UUCET v5. 0 — was developed prior to the black holeacoustic analog predictions published in McKenna (2025a, 2025b). The foundation frequency ω₀= 0. 313 that appears in those papers as the vacuum resonance frequency was first identified inUUCET runs as the matter fraction emerging from scalar field dynamics. The publicationsequence was ordered to present the most falsifiable evidence first; the developmentalchronology runs in reverse. Here we document the UUCET v5. 0 simulation architecture, present the Planck fraction result, and demonstrate that the spatial distribution of field energy spontaneously reproduces the visualmorphology of cosmic large-scale structure. Three independent AI systems — ChatGPT, Gemini, and Grok — were shown the simulation RGB composite output without any contextualdescription and independently produced images of nebulae, cosmic filaments, galaxy clusters, and the cosmic web, confirming that the spatial structure emerging from HRT field equationsmatches patterns recognizable as real astronomical observations.