Pointing to the wave equation describes nothing of reality. It is a statistical map, not a physical process. The Schrödinger equation evolves a probability amplitude. It’s a mathematical distribution of possible outcomes but it does not define what physically enforces or resolves those probabilities. Reality’s computation, I’m talking about the physical conversion of energy into information operating at the temporal granularity of Planck time, discrete blocks of reality. Physically irreversible means exactly that: energy has been committed toward entropy and cannot be retrieved without further expenditure. Aka real computation. In a discretized framework simultaneity is better understood as conservation. All transactions within a single block of time share the same interval of resolved entropy, the same quantum of time. They are simultaneous because they are conserved together, not because they occurred “at once” on a continuous clock Quantized geometry, the formal approach to the discretization of classical phase space into countable informational units.