# Deep-Time Institutional Conversion
**Domain:** Deep Time / Institutional Change / Governance
**Doc Type:** Canonical Wiki Entry
**Maturity:** Developed
**Evidence / Concept Status:** Canonical router
## Definition
**Deep-Time Institutional Conversion** is the family of mechanisms by which present institutions acquire continuity functions they were not originally designed to perform.
## Why It Matters for Deep Time Continuity
It is the institutional-change counterpart to Ontological Drift.
## Existing Architecture / Evidence
The history of the Social Security number demonstrates how a narrowly purposed identifier can expand across government and society. Data-protection purpose limitation explicitly guards against function creep.
## Deep-Time Continuity Analysis
Deep-time analysis should therefore map not only legislative text but reusable control surfaces and administrative infrastructure.
## Evidentiary Boundary
Conversion potential is not evidence of covert intent.
## Related Ontology
[[wiki/Institutional Conversion|Institutional Conversion]] · [[wiki/Policy Layering|Policy Layering]] · [[wiki/Policy Drift|Policy Drift]] · [[wiki/Function Creep|Function Creep]] · [[wiki/Legal Dual Use|Legal Dual Use]] · [[wiki/Continuity Conversion|Continuity Conversion]]
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## Canonical Branch
[[wiki/Deep Time Continuity|Deep Time Continuity]]
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