---
title: "MOC: Schema change and restructuring — how knowledge structures update, and when the vault should rewire itself"
type: "moc"
date_created: "2026-07-08T00:00:00.000Z"
updated: "2026-07-12T00:00:00.000Z"
tags: ["moc","schema-theory","restructuring","conceptual-change","self-rewiring","prediction-error"]
audits: ["undated claude-opus-4-8"]
---


The cognitive-science thread harvested from "when and how should SeekVault
deliberately rewire itself" — the counterpart to the gap-detection cluster
([[moc-knowledge-gap-detection]] finds what's missing; this cluster is about
what happens when a structure has to *change*). Spine idea, recurring across
every note: **prediction error is the shared trigger, and the friction of a
misfit is the signal you must not smooth away.**

## The taxonomy (what the modes are)
- [[claim-schema-change-four-mode-taxonomy]] — accretion / tuning /
  restructuring / schema formation, each PE-triggered (Rumelhart-Norman 1978 →
  SEEK model 2026); plus the caveat that "restructuring" changed meaning.
- [[claim-kgcl-defers-merge-split-topology-changes]] — the same operations in
  a knowledge-graph change language: node/edge edits are built, merge/split
  (the topology-reorganizing pair) are explicitly future work.

## The trigger (what starts restructuring)
- [[claim-cognitive-conflict-prerequisite-for-restructuring]] — conflict is a
  prerequisite; congruent information cannot trigger it.
- [[claim-p3-indexes-prediction-error-schema-updating]] — the P3 potential
  tracks PE magnitude predicting schema update; it does *not* mark a
  tuning/restructuring distinction (premise correction).
- [[claim-bjork-desirable-difficulties-not-prediction-error]] — the guardrail:
  Bjork 1994 is *not* a prediction-error source (verified negative); don't
  rest the PE spine on a mis-cited anchor.

## The architecture (is change one process or several)
- [[claim-insight-conflict-and-restructuring-distinct-networks]] — conflict and
  restructuring are partially-overlapping-but-distinct brain networks: neural
  evidence the two operations are separable.

## The obstacle (why restructuring fails)
- [[claim-expedient-knowledge-blocks-restructuring]] — a good-enough strategy
  learned early blocks later restructuring; accuracy makes bad structure sticky.

## The cross-domain frames (organizational punctuated equilibrium; cognitive-linguistic frame theory)
Domains outside the cognitive-science core that supply the same equilibrium/revolution
shape — a durable deep structure that resists ordinary pressure. Organizational-change
theory contributes both notes below (also a rival account of the *trigger*); both are
`seedling` on `[unverified-mechanism]` (primary text access-walled):
[[question-verify-organizational-punctuated-equilibrium-primaries]].
- [[claim-gersick-1991-punctuated-equilibrium-deep-structure]] — long equilibrium
  periods within a durable "deep structure," interrupted by brief revolutionary
  reorganizations of that structure.
- [[claim-tushman-romanelli-1985-reorientation-exogenous-trigger]] — the trigger is
  partly *exogenous* (environmental jolts, executive succession), not accumulated
  internal strain — a direct complication to the endogenous-threshold story above.
  The vault-facing hypothesis it spawns:
  [[question-new-session-onset-as-rewiring-trigger]].
- [[claim-lakoff-frames-neurally-entrenched-resist-reframing]] — a *third* domain
  supplying the same shape: cognitive linguistics. Lakoff argues political frames
  are neurally entrenched structures that strengthen with use (even under negation)
  and reframe only through deliberate repeated effort. `seedling` on
  `[unverified-mechanism]` — the synaptic-entrenchment mechanism is his own framing,
  not adjudicated neuroscience: [[question-verify-lakoff-neural-frame-entrenchment-neuroscience]].
  (Same intellectual parent, *Metaphors We Live By*, that gave software engineering
  "technical debt": [[claim-cunningham-technical-debt-from-lakoff-metaphor-theory]].)

## The bridge to backpropagation's origins (the author is the hinge)
- [[observation-rumelhart-person-bridge-schema-theory-to-backprop]] — David
  Rumelhart authored both the 1978 tuning/restructuring taxonomy above
  ([[claim-schema-change-four-mode-taxonomy]]) and, as the "R" in RHW 1986, the
  backprop revival in [[moc-backpropagation-origins]]. One trajectory; a
  person-bridge invisible to embedding retrieval because no note named the hinge.
  `seedling` — the stronger "schema-tuning is the ancestor of weight-tuning"
  reading is left open at
  [[question-verify-rumelhart-schema-tuning-to-gradient-descent-through-line]].

## The vault's own open decision
- [[question-consolidation-pass-vs-revisit-protocol]] — targeted hooks+lint vs
  a standing global consolidation pass. First-lint evidence (n=63) leans
  against a global pass; re-measure as the note count and retrieval load grow.

## The through-line for Seek
The literature backs treating "spin up a new cluster" and "reorganize an
existing one" as distinct operations — but NOT the vault's rule of thumb that
one needs a bigger trigger than the other (that's still a guess;
[[claim-schema-change-four-mode-taxonomy]]). And the sharpest warning is
[[claim-expedient-knowledge-blocks-restructuring]]: the better structure has
to arrive early or accumulated habit blocks it — the north star's argument for
wiring the embedding layer at threshold, not after the workflow calcifies.