The Field Dynamics Conjecture: Spontaneous Mass Generation, Spacetime Torsion, and Cosmic Microwave Background Anisotropies in a Non-Metric Conoidal Helicoidal Vacuum

We present a complete, self-consistent, non-metric alternative cosmological framework—nicknamed the Seashell-Universe Model—wherein macroscopic cosmic expansion isreinterpreted not through a dynamic spacetime metric, but as photon propagation along a confined,conical helicoidal trajectory within a static three-dimensional hypersurface. This paper providesthe complete underlying gravitational and quantum-field dynamics by establishing the FieldDynamics Conjecture within the framework of the Einstein-Cartan-Sciama-Kibble (ECSK) theory.We demonstrate that the non-rectilinear motion and intrinsic angular momentum of primordialfermions induce a non-vanishing spacetime torsion tensor, acting as the causal geometric motorforcing radiation geodesics into an unexpanded conoidal helix. Spacetime dynamics are governedby an asymptotic exponential Variable Speed of Light (VSL) profile coupled to a dynamicallyregularized photon mass mechanism. Crucially, we introduce a non-minimal quantum couplingbetween the scalar Higgs field and the torsion invariant. In the ultra-dense regime near the conoidalvertex, the geometric background suppresses the Higgs vacuum expectation value, renderingall elementary particles fundamentally massless, preventing gravitational singular collapse, andresolving the horizon paradox via native causal connectivity. Spontaneous electroweak symmetrybreaking emerges naturally as a phase transition governed by the geometric progression of thecoordinates. Furthermore, we derive the relativistic Boltzmann transport equations from firstprinciples within this Riemann-Cartan geometry. Through a generalized angular projectionmechanism, we establish that the primordial axial torsion symmetry averages stochastically intoan isotropic damping coefficient at macroscopic scales, successfully reproducing the acousticcompressions and rarefactions of the Cosmic Microwave Background (CMB) power spectrum.Finally, we formulate exact quantitative predictions for cosmic birefringence and parity-violatingB-mode polarization signatures, establishing a robust, fully falsifiable alternative to the standardΛCDM paradigm.