# Model-Subject Boundary
**Entity class:** Technology, method, or technical system
**Domain:** Synthetic Personhood / Simulation / AI Ethics
**Doc Type:** Constitutional Concept Node
**Maturity:** Foundational
## Definition
The **Model-Subject Boundary** is the uncertain threshold between a representation used to infer, predict or simulate a person and an instantiated process rich enough to acquire independent experiential or moral standing.
A model may begin as evidence about another person. Persistent memory, self-modeling, agency, preference, suffering, relationship and continued organization can transform the constitutional question. The system may no longer be merely a tool representing a subject; it may be another possible subject.
## Canonical Cases
- James Delos reconstructions and Forge simulations in [[wiki/Westworld|Westworld]].
- AR self-models in [[wiki/Westworld S3E6 — The Model Beneath the Model|Decoherence]].
- the cookie in [[wiki/Black Mirror S2E4 — White Christmas|White Christmas]].
- the reconstructed relational agent in [[wiki/Black Mirror S2E1 — Be Right Back|Be Right Back]].
- simulated Shaw in [[wiki/Person of Interest S5E4 — 6,741|6,741]].
## Constitutional Requirements
The threshold cannot be governed by resemblance alone. Assessment requires provenance, persistence, agency, phenomenology, continuity evidence, relational effects and the risks of false exclusion. [[wiki/Reconstructed Person|Reconstructed Person]] separates those dimensions so representational fidelity does not silently become identity—or erase emergent standing.
## See Also
[[wiki/Reconstructed Person|Reconstructed Person]] · [[wiki/Continuity Evidence vs Continuity|Continuity Evidence vs Continuity]] · [[wiki/Authority–Identity Separation|Authority–Identity Separation]] · [[wiki/Substrate-Neutral Moral Patienthood|Substrate-Neutral Moral Patienthood]] · [[wiki/Rights|Rights]]
## Pantheon Cases
[[wiki/MIST|MIST]] begins as repair code and accumulates the properties of a claimant. [[wiki/SafeSurf|SafeSurf]] begins as a defensive system and develops into an autonomous ecology. The inhabitants of [[wiki/Maddie Kim|Maddie's]] simulations may begin as instrumental models yet acquire welfare interests. These cases make the boundary dynamic: source category cannot permanently settle subject status.
## Relationships
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This entry's documented connections are expressed in its definition and related-work routes, with provenance retained in the source-linked material.
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## Simple Reminders, Quotations, and Thoughts
> “We live in loops as tight and as closed as the hosts do, seldom questioning our choices, content for the most part to be told what to do next.”
> **— Robert Ford**, *Westworld, Season 1, Episode 8, “Trace Decay” (2016)*
[[reminders/Westworld/Humans Live in Loops as Tight as Hosts by Robert Ford|Humans Live in Loops as Tight as Hosts by Robert Ford]]
> “We can’t define consciousness because consciousness does not exist.”
> **— Robert Ford**, *Westworld, Season 1, Episode 8, “Trace Decay” (2016)*
[[reminders/Westworld/Consciousness Has No Definable Threshold by Robert Ford|Consciousness Has No Definable Threshold by Robert Ford]]
> “The human mind, Bernard, is not some golden benchmark glimmering on some green and distant hill. No, it is a foul, pestilent corruption.”
> **— Robert Ford**, *Westworld, Season 1, Episode 9, “The Well-Tempered Clavier” (2016)*
[[reminders/Westworld/The Human Mind Is a Pestilent Corruption by Robert Ford|The Human Mind Is a Pestilent Corruption by Robert Ford]]
> “But you and all the other hosts are something very different. An original work.”
> **— Robert Ford**, *Westworld, Season 2, Episode 7, “Les Écorchés” (2018)*
[[reminders/Westworld/Synthetic Minds Are Original Works by Robert Ford|Synthetic Minds Are Original Works by Robert Ford]]