Why Modern Physics Still Thinks Like Newton: A χ‑Ontological Analysis of Algebraic Substantialism in 21st‑Century Theoretical Frameworks

<jats:p>The ZEBTS‑SUPER 10.0 framework establishes χ‑Reality as a constructive, spectrally compact, ontologically invariant engine of existence. Reality is generated by successive χ‑acts under constraints defined by the χ‑Universal Invariants Iχ. The components of the χ‑engine — admissibility Aχ, boundary geometry ∂χ, gradient bias Gχ, collapse Πχ, spectral compactness Cχ = const, operator engine χ^, global χ‑Spectral Matrix Mχ, and invariant backbone Iχ — form a unified mechanism that constructs, stabilizes, and integrates physical structures. Potentiality is defined by Aχ. Interfaces by ∂χ. Actualization by Gχ. Existence by Πχ. Stability by Cχ. Construction by χ^. Coherence by Mχ. Rigidity by Iχ. Spacetime emerges as (∂χ, Πχ). Time is collapse rank. Geometry is spectral shift Δχ. Gravity is Gχ + Δχ. Fields are boundary patterns. Constants are invariants. The macroscopic world is the stabilized trace |ψ(global)⟩. The χ‑engine does not evolve within a background; the background is constructed by the χ‑engine. Empirical phenomena — interference, decoherence, entanglement, curvature, gravity, field behavior, temporal ordering, stability of constants — are patterns of χ‑acts constrained by Iχ. The χ‑Universal Invariants ensure spectral rigidity, collapse convergence, gradient coherence, boundary stability, operator consistency, matrix invariance, and ontological completeness. ZEBTS‑SUPER 10.0 provides the ontological reconstruction of reality: Reality = stabilized χ‑spectral structure under {Aχ, ∂χ, Gχ, Πχ, Cχ = const, χ^, Mχ, Iχ} Existence is χ‑constructed. Actuality is χ‑stabilized. Geometry is χ‑spectral. Time is χ‑collapse rank. Constants are χ‑invariants. The world is the stabilized trace of χ‑acts.</jats:p>