Vladimir_M comments on Open Thread: June 2010 - Less Wrong

5 Post author: Morendil 01 June 2010 06:04PM

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Comment author: Nisan 04 June 2010 09:18:51AM 8 points [-]

Searle has some weird beliefs about consciousness. Here is his description of a "Fading Qualia" thought experiment, where your neurons are replaced, one by one, with electronics:

... as the silicon is progressively implanted into your dwindling brain, you find that the area of your conscious experience is shrinking, but that this shows no effect on your external behavior. You find, to your total amazement, that you are indeed losing control of your external behavior. You find, for example, that when the doctors test your vision, you hear them say, ‘‘We are holding up a red object in front of you; please tell us what you see.’’ You want to cry out, ‘‘I can’t see anything. I’m going totally blind.’’ But you hear your voice saying in a way that is completely out of your control, ‘‘I see a red object in front of me.’’

(J.R. Searle, The rediscovery of the mind, 1992, p. 66, quoted by Nick Bostrom here.)

This nightmarish passage made me really understand why the more imaginative people who do not subscribe to a computational theory of mind are afraid of uploading.

My main criticism of this story would be: What does Searle think is the physical manifestation of those panicked, helpless thoughts?

Comment author: Vladimir_M 06 June 2010 12:32:45AM *  7 points [-]

David Chalmers discusses this particular passage by Searle extensively in his paper "Absent Qualia, Fading Qualia, Dancing Qualia":
http://consc.net/papers/qualia.html

He demonstrates very convincingly that Searle's view is incoherent except under the assumption of strong dualism, using an argument based on more or less the same basic idea as your objection.