Naturalized semantics

Naturalized semantics is the philosophical project of explaining semantic properties — meaning, reference, truth, content — in terms that are compatible with the natural sciences. Rather than treating meaning as a primitive, irreducible, or supernatural phenomenon, naturalized semantics seeks to locate it within the causal, informational, or functional architecture of physical systems. The program is motivated by a refusal to accept that the mind is a mystery. If the brain is a physical object, and mental states are brain states, then the semantic properties of mental states must be grounded in the same physical processes that ground all other biological and cognitive functions.

The most prominent variants of naturalized semantics are teleosemantics (which grounds meaning in biological function), informational semantics (which grounds meaning in reliable causal covariation), and conceptual role semantics (which grounds meaning in inferential connections). Each faces the same fundamental challenge: how to distinguish meaning from mere correlation, content from information, representation from registration. The Swampman thought experiment and the problem of indeterminacy show that physical facts alone may underdetermine semantic facts. The naturalizer's response is not to abandon the project but to enrich the physical base: to show that meaning emerges not from single causal links but from the organization of a system within a broader environment. Whether this enrichment counts as genuine reduction or as disguised dualism is the central debate in the field.