0-2-5-understand-physical-index

name	0.2.5-understand-physical_index
description	[0.2.5] Luhmann's topical index cards kept at the front of the box that point to entry-point card IDs by subject headi

understand-physical_index

CALL NUMBER: deep_knowledge_management.physical_index DEFINITION: Luhmann's topical index cards kept at the front of the box that point to entry-point card IDs by subject heading.

Invoke this skill to understand physical_index down to its primitives. The RELATIVE ROOT below is the least-fixed-point closure of everything it bundles from — the full import cone, grouped by the lib each prim comes from. Projected from a prover-typed KB (MAP/SWI-Prolog consistency gate): every reference below resolves.

THE RELATIVE ROOT (the import cone, by lib)

from deep_knowledge_management

• entry_point (d1): A slip card serving as a hub that collects links from many other cards on a common topic, providing a navigation anchor into the box.
• note_cluster (d2): An emergent grouping of slip cards that have accumulated links around a shared theme or concept without explicit folder assignment.

CONSUMERS (what needs this)

handwritten_slip, luhmann_keyword_index

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Projected from the personal knowledge management and the second brain KB (161 concepts / 149 relations) — consistency-typed by MAP; the facet list after the colon IS the cross-lib dependency web.

(leaf — this is an actual skill.)