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- Inverted_spectrum abstract "Inverted spectrum is the apparent possibility of two people sharing their color vocabulary and discriminations, although the colors one sees — one's qualia — are systematically different from the colors the other person sees. The argument dates back to John Locke. It invites us to imagine that we wake up one morning, and find that for some unknown reason all the colors in the world have been inverted. Furthermore, we discover that no physical changes have occurred in our brains or bodies that would explain this phenomenon. Supporters of the hypothesis of qualia as non-physical entities argue that, since we can imagine this happening without contradiction, it follows that we are imagining a change in a property that determines the way things look to us, but that has no physical basis. In more detail:Metaphysical identity holds of necessityIf something is possibly false, it is not necessaryIt is conceivable that qualia could have a different relationship to physical brain-statesIf it is conceivable, then it is possibleSince it is possible for qualia to have a different relationship with physical brain-states, they cannot be identical to brain states (by 1).Therefore, qualia are non-physical.The argument thus claims that if we find the inverted spectrum plausible, we must admit that qualia exist (and are non-physical). Some philosophers find it absurd that an "armchair argument" can prove something to exist, and the detailed argument does involve many assumptions about conceivability and possibility, which are open to criticism. Perhaps it is not possible for a given brain state to produce anything other than a given quale in our universe, and that is all that matters.The idea that an inverted spectrum would be undetectable is also open to criticism on more scientific grounds:Inverted spectrum arguments have applications to behavioralism, physicalism, representationalism, functionalism, skepticism and the hard problem of consciousness.In his book I Am A Strange Loop, Douglas Hofstadter argues that the inverted spectrum argument entails a form of solipsism in which people can have no idea about what goes on in the minds of others—contrary to the central theme of his work. He presents several variants to demonstrate the absurdity of this idea: the "inverted political spectrum", in which one person's concept of liberty is identical to another's concept of imprisonment; an inverted "sonic spectrum" in which low musical notes sound like "high" ones and vice versa (which he claims is impossible because low sounds can be felt physically as vibrations); and a version in which random, complex qualia such as riding a roller coaster or opening presents are reversed, so that everyone perceives the world in radically different, unknowable ways.".
- Inverted_spectrum thumbnail Inverted_qualia_of_colour_strawberry.jpg?width=300.
- Inverted_spectrum wikiPageExternalLink qualia-inverted.
- Inverted_spectrum wikiPageExternalLink inverted_spectrum.htm.
- Inverted_spectrum wikiPageID "1757522".
- Inverted_spectrum wikiPageRevisionID "598487511".
- Inverted_spectrum hasPhotoCollection Inverted_spectrum.
- Inverted_spectrum subject Category:Color.
- Inverted_spectrum subject Category:Thought_experiments_in_philosophy.
- Inverted_spectrum type Abstraction100002137.
- Inverted_spectrum type Act100030358.
- Inverted_spectrum type Activity100407535.
- Inverted_spectrum type Event100029378.
- Inverted_spectrum type Experiment100639556.
- Inverted_spectrum type Investigation100633864.
- Inverted_spectrum type PsychologicalFeature100023100.
- Inverted_spectrum type Research100636921.
- Inverted_spectrum type ScientificResearch100641820.
- Inverted_spectrum type ThoughtExperimentsInPhilosophy.
- Inverted_spectrum type Work100575741.
- Inverted_spectrum type YagoPermanentlyLocatedEntity.
- Inverted_spectrum comment "Inverted spectrum is the apparent possibility of two people sharing their color vocabulary and discriminations, although the colors one sees — one's qualia — are systematically different from the colors the other person sees. The argument dates back to John Locke. It invites us to imagine that we wake up one morning, and find that for some unknown reason all the colors in the world have been inverted.".
- Inverted_spectrum label "Inverted spectrum".
- Inverted_spectrum label "逆転クオリア".
- Inverted_spectrum sameAs 逆転クオリア.
- Inverted_spectrum sameAs m.05tlmm.
- Inverted_spectrum sameAs Q6060549.
- Inverted_spectrum sameAs Q6060549.
- Inverted_spectrum sameAs Inverted_spectrum.
- Inverted_spectrum wasDerivedFrom Inverted_spectrum?oldid=598487511.
- Inverted_spectrum depiction Inverted_qualia_of_colour_strawberry.jpg.
- Inverted_spectrum isPrimaryTopicOf Inverted_spectrum.
