Brain is not a computer: the classic case against the information-processing metaphor
Anon84 · hn · 2026-10-11
This 2016 Aeon essay, resurfacing on Hacker News, challenges the foundational metaphor behind both neuroscience and AI:
- The idea that the brain 'processes information like a computer' is a metaphor, not an established fact — neuroscience has never convincingly located 'encodings' in the brain.
- The author argues the brain is better understood as a system regulating its own state through embodied interaction with the world, not a symbol-manipulating machine.
- The embodied/dynamical-systems view carries a pointed implication for AI: scaling the computational metaphor may not be a path to human-like intelligence.
The HN thread debates whether computationalism still holds and what this critique means for today's LLM scaling race.
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