3. Main Discussion: AI, Peirce, and Inquiry
3.1 Background: Peirce’s Theory of Signs
Presented by Ian MacDonald
Peirce distinguishes three sign types:
- Icons – resemble their object
- Indices – physically connected to their object
- Symbols – conventional representations (e.g., words)
AI primarily manipulates symbols, lacking robust handling of indices or icons, limiting grounding in real-world meaning.
3.2 Peirce’s View of Inquiry
Key elements:
- Inquiry moves from doubt to belief.
- Beliefs inform habits → influence practices.
- Meaning determined by the conceivable practical effects of a concept.
- Humans possess real-world contact; AI does not.
3.3 Issues Raised with Respect to AI
(1) Lack of Real-World Grounding
- Statistical understanding, not embodied experience.
- Cannot test ideas against reality.
(2) Logical Fragility / Hallucinations
- Produces contradictions or impossible answers.
- No internal grasp of logical laws.
(3) Coherence vs. Correspondence
- AI resembles coherence theory of truth.
- Humans rely on pragmatic/external correspondence.
(4) Inductive Scaling
- Mass statistical induction.
- Lacks real-world resistance to hypotheses.
7. Next Meeting
Proposed Date: Friday, February 13, 2026
Location: Same room (if available)
Time: Evening session
Matthew to confirm booking and share article beforehand.