The concept distinguishes Peirce's semiotic from theories that would ground meaning in a single moment of reference — the ostensive definition, the mental image, the brain state. Peirce's theory is irreducibly temporal: meaning unfolds in time as interpretation generates interpretation.
The human-AI dialogue exhibits, at least superficially, the unlimited character of semiosis. Prompts generate responses, which the human interprets, producing further prompts, further responses, further interpretations. Each exchange produces interpretants that feed into subsequent exchanges.
But the semiotic capacities of the participants are asymmetric. The human produces genuine interpretants — cognitive events that integrate the sign with the full resources of lived experience. The machine's processing generates output signs but does not produce interpretants in the full Peircean sense. The chain of semiosis runs through the collaboration but is carried, on the semantic side, primarily by the human participant.
The community of inquiry is what institutionalizes unlimited semiosis at the social level. The community's collective interpretation of signs across generations is the social embodiment of the endless chain. When the community converges asymptotically toward the final interpretant — the complete grasp of what a sign means — the convergence is not the discovery of a pre-existing meaning but the progressive construction of meaning through sustained interpretation.
The concept is a consequence of Peirce's triadic theory of signs: if every interpretant is itself a sign, and every sign produces an interpretant, the chain extends indefinitely.
Umberto Eco made the concept famous in twentieth-century semiotics, deploying it against structuralist theories that treated meaning as fixed by code.
Endless interpretation. Every interpretant is itself a sign producing further interpretants, without terminus.
Final interpretant as ideal limit. The chain converges asymptotically toward full meaning, never reaching it.
Temporal, not static. Meaning unfolds in time through interpretation, not fixed at a single moment.
Institutional embodiment. The community of inquiry is the social form of unlimited semiosis.