What is a world model?

Boundary between this and not-this.

Without distinction there is no information, no structure, no world. Distinction is the founding operation — the act that creates something from nothing by declaring a difference. Every subsequent ingredient presupposes it.

Things that persist across distinctions.

An entity is accumulated identity, not permanence. A person, an organization, a decision: each changes over time while remaining the same thing. Without entities, the model is a field of undifferentiated flux.

Connective tissue between entities.

An organization is not a set of people; it is the set of relations between them. Remove the relations and you have a crowd, not an organization. A model without relational structure is a list, not a model.

Directional ordering. The arrow matters.

Time provides the axis along which all other recursive processes operate. Entities accumulate identity through time, relations evolve, constraints tighten. Without time, the model is a snapshot — it cannot represent change, sequence, cause, or consequence.

Rules of change — themselves subject to change.

Given a current state and an action, what is the next state? Every existing definition captures this. But in a complete world model the rules of change are themselves changeable. An organization that rewrites its decision process is a world rewriting its own rules.

What cannot happen. Constitutive limits, not guardrails.

A chess game is not chess without the constraint that bishops move diagonally. Constraints do not penalize illegal moves — they make them impossible. They define the game. A model with constraints can distinguish possible futures from permissible ones.

A model from somewhere, for someone, with limits.

A world model is not the world. It is always partial, always perspectival, limited by what the observer can access. A model that cannot represent its own observational limits treats itself as omniscient — and every inference is contaminated by that assumption.

What the model does not know, represented structurally.

Not just "I haven't seen everything" — but a structural carrier for the difference between an audited statement, a manager's estimate, and a model's projection. Three claims with radically different epistemic status that must be tracked, never collapsed.

Teleology. Distance between actual and intended.

A state description says "here is how things are." A world model with purpose says "here is how things are, here is how they should be, here is the distance." In organizations purpose is constitutive — the organization is its purpose. Remove it and nothing remains.

Retained, queryable, accessible history.

Not storage. Memory is the accumulated record that informs present action. "What happened last time? Who decided this? How has our understanding changed?" Without memory, every moment is the first moment, and the model cannot learn from its own life.