# recovery (interval)

The interval during which a thing returns to being within its window after crossing a wall.

- Computed level: L15 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: ontological  ·  Arena: general

## Emergence
**Emerges from:** [window](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-window.range), [wall](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-wall.range-end), [parameter](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-parameter.condition), [cross](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-cross.symbol), [return](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-return.movement), [time](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-time.dimension)

**Through:** These components jointly model a parameter moving beyond a boundary, symbolized by crossing, then returning over time to a sustainable range through a structural opening in the boundary.

**Novel properties:**
- temporal reintegration
- post-boundary transition
- recovery trajectory

## Examples
- After the 2003 Northeast blackout, the power grid restored voltage levels within 15 minutes across Ontario and eight U.S. states. *(engineering)*
- A neuron's membrane potential returns to −70 mV within 2 milliseconds after an action potential crosses the threshold. *(biology)*
- Bitcoin rebounded to $40,000 two weeks after dropping below $35,000 during the May 2021 market crash. *(economics)*

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