# freedom (range)

the width of a parameter's window within which a thing can persist

- Computed level: L8 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: window  ·  Arena: general

## 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), [persist](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-persist.continue)

**Through:** the difference between two walls defines the range of a window

**Novel properties:**
- endurance within bounds
- conditional persistence
- viable span

## Examples
- The International Space Station maintains orbit between 370–460 km altitude using periodic reboosts to counter atmospheric drag. *(engineering)*
- The human heart sustains function within a blood pH range of 7.35 to 7.45 despite dietary and metabolic fluctuations. *(biology)*
- Bitcoin's protocol adjusts mining difficulty every 2016 blocks to keep average block time near 10 minutes. *(computing)*

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