Emergence of a Space-Filling Neutrino-Like Fluid in a Classical Gravitational Simulation

We present a minimal numerical existence experiment addressing whether a compact-object sector arises generically in a regulated vacuum model that permits spontaneous paired creation of equal and opposite curvature defects. The simulation combines consistent signed-mass gravitational bookkeeping, a saturation-triggered collapse rule, and bounded kinematics in a three-dimensional periodic domain. Across broad parameter ranges, the system evolves from an initially empty state to a persistent population of minimum-mass rotating Kerr-like proxies. Within the explicitly defined model class, emergence of a compact-object-dominated regime is dynamically generic. When bounded dipolar response is included, the late-time state admits a locally coherent coarse-grained description as a space-filling neutrino-like fluid. Furthermore, the dynamics spontaneously segregate the paired defects into a clustered matter-like sector and a diffuse, repulsive dark-sector analogue. Calibrating the emergent compact-object mass to the physical neutrino mass implies a deeply sub-Planckian classical substrate ($\lesssim 10^{-61}$~m), suggesting that if this framework holds, the Planck scale and quantum mechanics may themselves be emergent macroscopic phenomena.