RobinZ comments on Consciousness - Less Wrong

2 Post author: Mitchell_Porter 08 January 2010 12:18PM

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Comment author: PhilGoetz 11 January 2010 04:52:38AM 0 points [-]

In Explaining Consciousness, chapter 2, p. 28, Dennett says there is no purple in the brain when we see purple. That may be what he means.

I also heard Dennett quoted as saying there is no such thing as qualia, allegedly in "The taboo of subjectivity", p. 139, which I don't have.

Comment author: RobinZ 22 January 2010 01:55:04PM 0 points [-]

Belatedly:

  • I think the reference on p. 28 is pointing out that the brain doesn't turn purple (and a purple brain wouldn't help anyway, as there are no eyes in the brain to see the purple). The remainder of the page is extending the example to further elaborate the problem of subjective experience.

  • I cannot find the reference to qualia quoted in The Taboo of Subjectivity at all - p. 74 is before Dennett even defines qualia, and p. 374 does not have those exact words - only the conclusion of a thought experiment illuminating his rejection of the concept.