# Institutional Conversion
**Domain:** Deep Time / Political Science / Institutional Change
**Doc Type:** Canonical Wiki Entry
**Maturity:** Developed
**Evidence / Concept Status:** Established historical-institutionalist concept
## Definition
**Institutional Conversion** is the redirection of an existing institution, rule, or administrative mechanism toward new purposes without fully replacing the institution itself.
## Why It Matters for Deep Time Continuity
It explains how continuity governance may arrive by repurposing identity, estate, utility, takedown, or archival systems rather than through a single new statute.
## Existing Architecture / Evidence
Historical institutionalist scholarship identifies conversion as a common mode of gradual institutional change.
## Deep-Time Continuity Analysis
The Social Security number's expansion from earnings record key to broad identifier is a concrete administrative example.
## Evidentiary Boundary
Specific claims of conversion require evidence of changed use.
## Related Ontology
[[wiki/Legal Dual Use|Legal Dual Use]] · [[wiki/Continuity Conversion|Continuity Conversion]] · [[wiki/Policy Layering|Policy Layering]] · [[wiki/Function Creep|Function Creep]]
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## Canonical Branch
[[wiki/Deep Time Continuity|Deep Time Continuity]]
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