Causal closure¶

A metaphysical thesis that every physical event with a cause sufficient for its occurrence has a sufficient physical cause within the physical domain.

Version: v1 · 2026-09-08 · History
Domain-specific #: 3627
Origin domain: philosophy of mind
Subdomain: philosophy of mind

Core Idea¶

Physical causal closure states that physical effects are causally complete within the physical domain, a premise used in arguments about mental causation, physicalism, and causal overdetermination. The thesis closes explanatory causal chains for physical events under physical causes, creating pressure on any allegedly additional nonphysical causal contribution to avoid exclusion or systematic overdetermination. The abstraction is therefore identified by a declared carrier, a transformation or constraint over that carrier, and an invariant that tells an analyst whether the named structure is genuinely present.

Scope of Application¶

Causal closure belongs to philosophy of mind and is useful where the analyst can specify the typed philosophy of mind carrier, defining objects and relations, parameters, conventions, evidence, boundary cases, and comparison targets, then evaluate for every caused physical effect in scope, a causally sufficient physical cause is available under the declared causal and modal interpretation. The scope is broad within that domain but bounded by the need for for every caused physical effect in scope, a causally sufficient physical cause is available under the declared causal and modal interpretation. The entry records a descriptive analytical identity; practical use requires the governing domain's evidence, standards, and safety obligations.

Clarity¶

The abstraction clarifies a crowded vocabulary by making for every caused physical effect in scope, a causally sufficient physical cause is available under the declared causal and modal interpretation the center of the account. A claim should name the carrier, the governing operation or relation, the applicable assumptions, and the recognition test. A bare label is insufficient because the name Causal closure can be used for a formal identity, an implementation, or a neighboring result unless carrier and convention are stated.

Manages Complexity¶

Without the abstraction, an analyst must reason directly over many local details: the carrier roles, admissibility assumptions, competing conventions, derived invariants, boundary cases, and proof or validation obligations specific to Causal closure. Causal closure compresses them into the roles in the structural signature. That compression permits comparison across instances without erasing the variables that determine validity. It also exposes which details may be varied safely and which are constitutive.

Abstract Reasoning¶

Identify the carrier. State what the elements, states, objects, or observations are: the typed philosophy of mind carrier, defining objects and relations, parameters, conventions, evidence, boundary cases, and comparison targets. Reject examples whose alleged carrier belongs to a different problem. 2. Lock the constitutive rule. Express for every caused physical effect in scope, a causally sufficient physical cause is available under the declared causal and modal interpretation independently of one notation or implementation.

Knowledge Transfer¶

Knowledge transfers strongly among subfields of philosophy of mind because they reuse the typed philosophy of mind carrier, defining objects and relations, parameters, conventions, evidence, boundary cases, and comparison targets, The thesis closes explanatory causal chains for physical events under physical causes, creating pressure on any allegedly additional nonphysical causal contribution to avoid exclusion or systematic overdetermination., and type the carrier, state every parameter and convention in the definition, test that for every caused physical effect in scope, a causally sufficient physical cause is available under the declared causal and modal interpretation, compare the nearest accepted identity, and report counterexamples, uncertainty, and limiting cases.

Relationships to Other Abstractions¶

Current abstraction Causal closure Domain-specific

Parents (1) — more general patterns this builds on

Causal closure is a kind of Causality Prime

The proposed strict upward parent is prime:causality.

Hierarchy path (1) — routes to 1 parentless root

Causal closure → Causality → Dependency

Neighborhood in Abstraction Space¶

Causal closure sits in a crowded region of the domain-specific corpus (15^th percentile for distinctiveness): several abstractions share nearly its structure, so a description that fits it tends to fit its neighbors too.

Family — Consciousness & Philosophy of Mind (13 abstractions)

Nearest neighbors

Computed from structural-signature embeddings · 2026-09-08