# External Phenotype
**Entity class:** Continuity and identity concept
**Collections:** [[collections/Neurotech|Neurotech]] · [[collections/Consciousness Continuity|Consciousness Continuity]]
## Definition
**External Phenotype** is the durable behavioral, linguistic, relational, and autobiographical traces through which aspects of a person become observable outside the biological nervous system.
## Relationships
- **Technical relationship:** It contributes evidence to [[wiki/Continuity Telemetry|Continuity Telemetry]] and a [[wiki/Continuity Sidecar|Continuity Sidecar]] but is not equivalent to the full person.
- **Source relationship:** This entry is routed from [[articles/Technologies for Consciousness Mapping and Transfer|Technologies for Consciousness Mapping and Transfer]] and the [[research/Consciousness Mapping and Transfer Ecosystem Relationship Graph - 2026-09-10|Consciousness Mapping and Transfer Ecosystem Relationship Graph — 2026-09-10]].
- **Collection relationship:** The entry belongs to [[collections/Neurotech|Neurotech]] and the person-scale persistence questions maintained by [[collections/Consciousness Continuity|Consciousness Continuity]].
## Epistemic boundary
Inclusion in the continuity stack records a documented component, method, model, or analytic distinction; it does not by itself establish whole-person transfer, subjective continuity, or numerical identity.