A long essay argues AI’s “functional equivalence” can hide real causal differences
erikphoel · x · 2026-08-04
The “curse of functional equivalence” in AI and philosophy of mind
A long-form essay argues that the idea of functional equivalence hides important differences between a system that acts like it understands and one that actually has the relevant causal structure. The post is framed as a critique of computationalism, using AI, consciousness, and philosophy of mind as the main lens.
What the article touches on
- It revisits classic debates around functionalism, consciousness, causality, and symbol manipulation.
- It uses examples from AI history and popular model behavior to argue that apparent equivalence can be misleading.
- The piece is structured as a broad intellectual survey, with references ranging from Turing, Dennett, Searle, and Penrose to modern LLMs.
The overall argument is less about a specific product or model and more about what it means for AI systems to “understand” or to be functionally equivalent to minds.
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