Cognitive Projection and Observer Entropy: A Minimal Model of Subjective Physics

Version 11.2 of the Subjective Physics framework introduces adaptive spectral thresholds in the cognitive projection model and extends the multi-agent $\Sigma$-projection to include dynamic synchronization and divergence scenarios. Observer entropy Sobs (t) evolves under feedback from von Neumann entropy, capturing phase-like collapses and bounded oscillations. Numerical simulations generate outputs such as entropy_dynamics.pdf, entropy_phase_map.pdf, and multiagent_synchronization.pdf, visualizing time-dependent entropy trajectories, steady-state phase diagrams, and collective alignment in reduced cognitive space. This update integrates dynamic cognitive decoherence, adaptive perceptual filtering, and weak-value interpretations, consolidating the framework’s thermodynamic–information-theoretic core while enhancing its applicability to experimental and multi-agent scenarios. See also: Khomyakov (2025), Comment on Evans (2025), DOI:10.5281/zenodo.17469210 See also: Reassessment of the Undecidability Argument Against Simulation, DOI:10.5281/zenodo.17500108