# thaw (recovery)

a parameter whose window is widening after having been narrow, closing the window that its narrow state had opened.

- Computed level: L18 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: window  ·  Arena: generic

## Emergence
**Emerges from:** [parameter](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-parameter.condition), [window](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-window.range), [narrow](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-narrow.spatial), [close](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-close.spatial), [open](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-open.spatial), [state](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-state.condition), [time](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-time.dimension)

**Through:** The components jointly describe how a parameter's allowable range, previously constricted, begins to expand over time, driven by the transition from a narrow and closed state to an open one.

**Novel properties:**
- widening over time
- closure of prior constrained state
- temporal progression from narrow to open

## Examples
- In 2021, the Suez Canal resumed shipping after the Ever Given was freed, reopening a global trade corridor. *(economics)*
- The Antarctic ozone hole shrank from 29 million km² in 2006 to 23 million km² by 2019, allowing reduced UV exposure. *(environment)*
- After CPU throttling ended post-overheating, the Raspberry Pi 4 resumed full processing speed in 2020. *(computing)*

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