“I am inclined to doubt that anything very resembling formal logic could be a good model for human reasoning.”

— Marvin Minsky

Jokes and their Relation to the Cognitive Unconscious (1980)
Context: I am inclined to doubt that anything very resembling formal logic could be a good model for human reasoning. In particular, I doubt that any logic that prohibits self-reference can be adequate for psychology: no mind can have enough power — without the power to think about Thinking itself. Without Self-Reference it would seem immeasurably harder to achieve Self-Consciousness — which, so far as I can see, requires at least some capacity to reflect on what it does. If Russell shattered our hopes for making a completely reliable version of commonsense reasoning, still we can try to find the islands of "local consistency," in which naive reasoning remains correct.

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American cognitive scientist 1927–2016

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