# trust (reliance)

Acting on a model of another system instead of verifying it, affordable exactly across the range where the model holds.

- Computed level: L15 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: social  ·  Arena: interaction

## Emergence
**Emerges from:** [model](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-model.representation), [window](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-window.range), [parameter](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-parameter.condition), [act](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-act.deed), [instead](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-instead.alternative), [system](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-system.organized), [range](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-range.spatial), [across](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-across.spatial), [hold](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-hold.physical)

**Through:** The components together enable reliance by allowing one system to act on a representation of another within a bounded range of conditions, choosing the model over verification.

**Novel properties:**
- bounded reliance
- action without verification
- model-based affordance

## Examples
- The Mars rover Opportunity executed commands based on Earth-time schedules despite a 20-minute signal delay, trusting its preloaded navigation model. *(computing)*
- In 2008, Iceland's banking system collapsed when trust in interbank lending models failed beyond their operational range. *(economics)*
- Pilots rely on autopilot systems during cruise flight, acting on sensor-fused models instead of direct visual verification. *(engineering)*

## Used by
- [benefit of the doubt](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-benefit-of-the-doubt.trust) (L16)
- [blind spot](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-blind-spot.model) (L16)
- [gut feeling](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-gut-feeling.trust) (L16)
- [red flag](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-red-flag.warning) (L16)
- [sanity check](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-sanity-check.trust) (L16)
- [too good to be true](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-too-good-to-be-true.trust) (L16)

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