# Observer Patch Holography

> Reverse Engineering Reality — a unified theory of physics by Bernhard Mueller. Spacetime, quantum mechanics, gravity, and the Standard Model derived from five axioms of observer consistency.

Observer Patch Holography (OPH) starts from one premise: there is no objective "view from nowhere." Reality consists of observers with finite information patches that must agree where they overlap. From this, the laws of physics follow as theorems rather than postulates.

## Pages

- [Home](/): Overview of the framework, chapter index, downloads.
- [Academic](/academic): Scholarly resources, citations, and the technical paper.
- [Technical Paper (PDF)](/papers/from_observer_consensus_to_standard_physics.pdf): "From Observer Consensus to Standard Physics" — full formal derivations.

## Chapters

- [Consistency](/chapter/consistency): The overlap axiom that grounds the framework.
- [Lineage](/chapter/lineage): Observer histories and Markov structure.
- [Screen](/chapter/screen): Holographic screens from finite access.
- [Entropy](/chapter/entropy): Information bounds on observer patches.
- [Algebra](/chapter/algebra): Operator algebras of local observers.
- [Overlap](/chapter/overlap): The consistency test between patches.
- [Recovery](/chapter/recovery): Local recovery and quantum error correction.
- [Holography](/chapter/holography): The holographic principle, derived.
- [Entanglement](/chapter/entanglement): Entanglement as the geometric glue.
- [Error Correction](/chapter/error-correction): Bulk reconstruction.
- [MaxEnt](/chapter/maxent): Maximum entropy and thermodynamics.
- [Symmetry](/chapter/symmetry): Where gauge symmetry comes from.
- [De Sitter](/chapter/de-sitter): Cosmological constant and horizons.
- [Standard Model](/chapter/standard-model): Derivation of the SM gauge group.
- [Relativity](/chapter/relativity): Einstein's equations from observer consistency.
- [Matter](/chapter/matter): Lepton masses and dark matter.
- [Darwin's Laws](/chapter/darwins-laws): Selection of physical law.
- [Synthesis](/chapter/synthesis): The full framework assembled.
- [Metaphysics](/chapter/metaphysics): What OPH says reality is.
- [Epilogue](/chapter/epilogue): Observer continuation and open questions.

## Optional

- [OPH Lab](https://oph-lab.floatingpragma.io): Interactive simulator.
- [OPH Learn](https://learn.floatingpragma.io): Two textbooks for students.
- [Video Course](https://www.youtube.com/playlist?list=PLff0tYtg64Egc2sTtKgThcPRNRdR6i83O): 21-part YouTube series by Sriharsha Karamchati.