Particle-Centric Existence-First Cosmology: A RAM-Limited Entropic Playground Model

This manuscript unifies two previously independent paradigms. The “RAM-Limited-Universe” framework interprets cosmic red-shift as a resolution-shift produced by finite information capacity, eliminating the need for metric expansion or dark energy. The “Children-of-Particles” framework treats elementary particles as self-organising “progenitors” that construct a bounded container—the Universe—to maximise entropic play. In the combined model, particles establish a finite-RAM arena in which observers experience scaling phenomena governed by a single resolution-shift function, f(t)=\alpha \log\!\bigl(1+\beta t\bigr), with \alpha,\,\beta fitted to Pantheon+ SN Ia data (Δχ² ≈ 1.2). Key consequences include an effective equation-of-state w_E(z) that replaces ΛCDM dark energy, a predicted BAO scale shift Δr_s/r_s ≈ f/3, and information-theoretic limits on CMB anisotropy. An appendix provides residual plots, notation tables, and a discussion of ontological implications—particles acting as both computational substrate and cosmological “creators”. The work closes with a roadmap for numerical entropy-budget analysis, resolution-shift searches, and experimental falsification.