# coherence (state)

parts whose windows are mutually compatible

- Computed level: L11 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: window  ·  Arena: ontology

## Emergence
**Emerges from:** [part](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-part.relation), [window](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-window.range), [boundary](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-boundary.limit), [persist](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-persist.continue)

**Through:** The parts, each bounded and persisting through compatible parameter windows, align so their boundaries and conditions coexist without rupture.

**Novel properties:**
- mutual tolerance of change
- collective persistence

## Examples
- The International Space Station maintains stable internal pressure despite micrometeoroid risks and component failures. *(engineering)*
- The U.S. Constitution has functioned continuously since 1789, adapting through amendments and court interpretations. *(institutions)*
- A superconducting quantum interference device (SQUID) sustains quantum coherence across its Josephson junctions below 4K. *(physics)*

## Used by
- [sanity check](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-sanity-check.trust) (L16)

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*Canonical: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-coherence.state*  
*Structured data: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-coherence.state.json*  
*Every definition provably resolves to space, time, energy and pattern.*