Putnam's Inverted Spectrum thought experiment is intended to show that functionalism is an inadequate theory of mind.

Question

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Putnam's Inverted Spectrum thought experiment challenges functionalism by suggesting that two people could have identical functional states (same input-output relations and internal operations) yet experience qualia (subjective experiences) differently, such as seeing colors inverted relative to each other. This suggests that functionalism may not fully account for the subjective aspect of mental states.

Putnam's Inverted Spectrum Thought Experiment Is Intended to Show That