The Knowledge Argument. What Mary Didn’t Know Frank Jackson. What Mary doesn’t know.
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What Mary Didn’t KnowFrank Jackson
He would know exactly what the microscopic structure of ammonia must be; but he would be totally unable to predict that a substance with this structure must smell as ammonia does when it gets into the human nose…[H]e could not possibly know that these changes would be accompanied by theappearance of a smell in generalor of the peculiar smell ofammonia in particular, unlesssomeone told him so or he hadsmelled it for himself.
Could a Martian, entirely without sentiments of compassion and piety, know about what is going on during a commemoration of the armistice?…[He could] predict all responses, including the linguistic utterances of the earthlings in the situations which involve their visual perceptions, their laughter about jokes, or their (solemn) behavior at the commemoration. But ex hypothesi, the Martian would be lacking completely in the sort of imagery and empathy which depends on familiarity (direct acquaintance) with the kinds of qualia to be imaged or empathized
Mary is a brilliant scientist who is…forced to investigate the world from a black and white room via a black and white television monitor. She specializes in the neurophysiology of vision and acquires…all the physical information there is to obtain about what goes on when we see ripe tomatoes…and use terms like ‘red’…
Epiphenomenalism is fine by me
If it’s not worthdoing wellit’s not worthdoing at all
Sometimes ourintuitions arejust lousy