# become (change)

to be an object that undergoes a transition from one persistent state to another over time

- Computed level: L5 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: lexical  ·  Arena: emergence

## Emergence
**Emerges from:** [change](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-change.process), [state](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-state.condition), [difference](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-difference.relation), [object](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-object.entity), [time](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-time.dimension)

**Through:** change.process operates over time.dimension to transform the state.condition of an object.entity, resulting in a difference.relation between its initial and final states.

**Novel properties:**
- temporal transition
- state difference
- entity persistence

## Examples
- The Arctic sea ice shrank from 7.5 million km² in 1980 to 3.4 million km² in 2023, crossing a melt threshold. *(climate)*
- The city of Detroit transitioned from 1.8 million residents in 1950 to under 640,000 by 2020, altering its urban structure. *(urban)*
- The software library React changed from using mixins to hooks in version 16.8, shifting its state management model. *(computing)*

## Used by
- [heat](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-heat.thermal) (L20)
- [learn](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-learn.cognitive) (L7)
- [updated](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-updated.temporal) (L6)

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