Interpretability debate: under multi-hop reasoning, entities may not exist as representations

livgorton · x · 2026-10-19

A technical interpretability exchange: luciaquirke explains that "What is an attraction in Paris?" could activate a (France, Paris, Eiffel, Country) neuron and an (attraction, Eiffel, Golden Gate Bridge) neuron, whose boosts hit the "Eiff" token hardest — in this ontology, entities don't exist as such. livgorton pushes back: for multi-hop reasoning, wouldn't you still end up with entity-like representations? Touches on polysemanticity and compositional representations.

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