# foundation (structural)

a window whose walls set the walls of every window above it

- Computed level: L11 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: common usage  ·  Arena: everyday

## 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), [wall](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-wall.range-end), [above](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-above.spatial), [sets](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-sets.grouped)

**Through:** The walls of a foundation window constrain the potential positions of walls in all higher windows.

**Novel properties:**
- hierarchical constraint
- vertical dependency
- structural precedence

## Examples
- The Burj Khalifa's reinforced concrete mat foundation supports 163 floors without shifting, despite Dubai's sandy soil. *(engineering)*
- The 1944 Bretton Woods Agreement established fixed exchange rates, shaping global finance for decades. *(economics)*
- The Linux kernel's initial release in 1991 provided the base for over 80% of current web servers. *(computing)*

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