Complete Phase I foundations (SOUL-WP-0002)

Integrate research/foundations notes 001–005 into Terminology, Claims,
bibliography, concept notes, thought experiments, and open questions. Write
phase-i-foundations-synthesis.md, finish SOUL-WP-0002, and mark SOUL-WP-0003
ready for interaction research.

concepts/soul.md

@@ -1,28 +1,49 @@
 # Soul
 
-**Status:** provisional / under review  
-**Working gloss:** Soul = Relation
+**Status:** revised (Phase I, 2026-08-12)  
+**Working gloss:** Soul = Relation  
+**See also:** H5, RQ4, RN-001 Finding 14, RN-005 SF-C055
 
-## Working definition
+## Working definition (revised)
 
-The **Soul** is the evolving relational boundary through which a Being develops
-identity, relationships, history, commitments, provenance, reputation, and
-persistent influence in its environment.
+> The **relation-bearing dimension** through which interactions become persistent
+> relationships, commitments, provenance, history, reputation, and consequences
+> connecting a Being to other systems across time.
 
-It is not identical with the environment; it is the coupling boundary and the
-persistent consequences of interactions across that boundary.
+In Soul Frame: **Soul = Relation**.
 
-## Notes for research
+## What Soul is not
 
-- Informational, not metaphysical, reading of persistence/"eternity".
-- A Being may cease operating while influence continues (legacy).
-- High terminology collision risk; retention requires explanatory payoff.
+| Not Soul | Belongs to |
+|---|---|
+| System/environment boundary | **Being** |
+| Operational channels | **Body** |
+| Adaptive interpretation | **Mind** |
 
-## Structural ambiguity to resolve
+Initial definition overloaded Soul with boundary + relations + legacy. Phase I
+strips boundary out.
 
-Does Soul name:
+## Temporal role
 
-1. the boundary itself,
-2. the relational structures crossing the boundary,
-3. the accumulated consequences of those interactions,
-4. or a carefully defined combination?
+- **Body** — present operational coupling  
+- **Mind** — interpretation and control of possible states  
+- **Soul** — diachronic relational continuity and propagated effects  
+
+Soul continuity can **cross Being-identity discontinuities** (legacy, models in
+others, works, Ghosts).
+
+## Collision analysis
+
+High risk with religious/metaphysical “soul”. Retention depends on explanatory
+payoff of the relational reading. Rename remains open (RQ4).
+
+## Open issues
+
+1. Relations vs accumulated consequences vs both (packaging)
+2. Rename candidates if collision cost exceeds value
+3. How Soul relates to lineage after forks
+
+## Sources
+
+`research/foundations/001-closure-model-relation-recognition.md` §14–16  
+`research/foundations/ResearchNote005-IdentityContinuityStressTest.md` SF-C055