Overview. This document outlines the causal sequence in the Gravity as Collapse model, demonstrating how the probabilistic Quantum Future (Heisenberg) transitions through the Planck Interface (Inflection) to produce the Geometric Present (Einstein). This three-stage process unifies quantum mechanics and general relativity, showing gravity and time as emergent records of wavefunction collapse.
Before realization, systems are described by a wavefunction \( \Psi \) on Hilbert space. Position and momentum are not simultaneously sharp; the non-commutation of observables reflects a pre-geometric description where "where" and "when" are not yet fixed coordinates.
At Planck scales, interaction and decoherence suppress off-diagonals (\( \rho_{ij}\!\to\!0 \) for \( i\ne j \)), effectively selecting a definite outcome. This collapse maps probabilistic amplitudes to dimensional observables—events with concrete coordinates and energy–momentum.
The deterministic manifold \( (\mathcal M, g_{\mu\nu}) \) records realized outcomes as curvature. Persistent collapse density corresponds to persistent stress–energy, which sources gravity. The ensemble of realized events defines the classical spacetime we inhabit.
Summary: Together, these steps connect the *probabilistic future* to the *geometric present*: collapse at the Planck interface instantiates the quantities that classical geometry measures.
The following classic theories are integrated into the three-stage logic chain, providing context for the quantum-to-classical transition:
| Pillar (Role) | Core Concept | 
|---|---|
| Schrödinger Dynamics | Unitary evolution of futures in Hilbert space; the continuous transformation that precedes collapse: \( i\hbar\,\partial_t \Psi = \hat H \Psi \) | 
| Born Rule (Probabilities) | Connects amplitudes to outcomes; weights of futures realized upon collapse at the interface: \( P(i)=|\langle i|\Psi\rangle|^2 \) | 
| Bohr Complementarity | Mutually exclusive classical descriptions (wave/particle); context fixes the realized description at collapse. | 
| Copenhagen Projection | Operational rule for selecting a definite result; interpreted here as the $C:\mathcal H\to\mathcal M$ map at the Planck inflection. | 
| de Broglie Matter Waves | Wave–particle duality before collapse; pre-geometric phases interfere to set realized patterns: \( \lambda = \tfrac{h}{p} \) | 
| Maxwell Electromagnetism | Classical field structure for light; null geodesics at $c$ define the causal edge of realization. | 
| Noether Symmetries | Conservation laws in the realized domain from spacetime symmetries recorded by geometry. | 
| Decoherence (Zurek) | Explains pointer states and suppression of interference; the mechanism that readies states for collapse at the interface. | 
Conclusion: The Schrödinger + Born + Complementarity concepts shape the Heisenberg future; Decoherence & Projection operate at the Planck interface; and Maxwell, Noether, and Dirac structure the realized fields and geometry in the Einstein present.