# topic (subject)

a subject that is what information or messages are about

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

## Emergence
**Emerges from:** [subject](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-subject.entity), [information](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-information.knowledge), [message](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-message.information)

**Through:** The subject and information are what messages are about.

**Novel properties:**
- aboutness of messages
- thematic focus in communication
- shared referent in exchange

## Examples
- The Hubble Space Telescope's 2009 servicing mission corrected its vision, restoring focus to its scientific observations. *(engineering)*
- CERN's Large Hadron Collider circulates proton beams at 99.999999% of light speed, maintaining collision conditions for particle discovery. *(physics)*
- The U.S. Census Bureau conducts a nationwide count every ten years to update demographic and political representation data. *(institutions)*

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