Frank Jackson and Physicalism

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Frank Jackson and Physicalism

Frank Jackson begins his article by writing about what he feels to be a fatal flaw in physicalism. He writes a story about a girl named Mary who is raised in a black-and-white room. In this room Mary was taught everything there is to know about the physical world. The only catch is she learned only from media, which was black-and-white, so she knows nothing of the colors outside this room. After learning everything about the physical world, she is then given the chance to see color. She will then "learn" what color is in the world. For this reason Jackson believes physicalism to be false.

Jackson contends that if physicalism were true, Mary would know what a color looks like before she would ever see that color. This, however, is false since Mary could not possibly know what the color looks like before exposure to it. It is impossible for any person to imagine what a color looks like before they see any color at all. Jackson writes, "imagination is a faculty that those who lack knowledge need to fall back on."

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