# knock on effect (stacked)

*Ordinarily means:* One event causes another, which causes another, and so on.

A cause that sets a change in motion which crosses a wall only because each following cause was already near its own wall, and none were maintained against drift.

- Computed level: L16 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: EmergenceLexicon  ·  Arena: linguistic

## Emergence
**Emerges from:** [cause](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-cause.reason), [drift](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-drift.aimless), [maintenance](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-maintenance.upkeep), [wall](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-wall.range-end), [parameter](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-parameter.condition)

**Through:** stacked dependency

**Novel properties:**
- cause that triggers a sequence of pre-stressed changes

## Examples
- In 2008, Lehman Brothers' collapse triggered a chain of bank failures across Europe and the U.S. due to unmet collateral thresholds. *(economics)*
- The 2011 Tōhoku earthquake shifted Earth's axis by 10 cm, altering day length and affecting GPS satellite synchronization. *(geophysics)*
- The 1990 Hubble Space Telescope launch revealed a 2.2-micron mirror flaw, delaying science operations for three years. *(engineering)*

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