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[Stumblings in the dark] - a sporadic weblog



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Monday, 30th of December, 2002

Philosophers' Zombies and Jackson's Mary (1:51 pm)

Here's an interesting paper by Tamler Sommers (who I've never heard of before, by the way) that challenges both the logical basis and the rhetorical power of various philosophical thought experiments aimed at disproving materialism. Assumptions about the concept of "logical possibility" and the related concept of "that which is conceivable" are fruitfully brought into question.

For the uninitiated, materialism in philosophy of mind is a position (one which I hold) that distinguishes itself from dualism in asserting that everything that is(*note), including minds and suchlike, is material. There is no mysterious mind-substance, nor some immaterial (yet existing) soul… There are also no ghosts, spirits, gods, etc. Materialism is often attacked via arguments about qualia, that is, the ineffable yet distinct sensations that we have in our conscious lives. The colour red, the sound of a major triad, and you can go on as you wish, all seem to have real properties which don't seem explicable in terms of relationships between the elements of a physical system (namely our brain/nervous system/physical body).

Anyone who believes that humans have evolved from other animals, and previously from replicating chemical chains and simple molecules, ought to believe that we are nothing more than matter that has learned to think for itself (so to speak), but a lot of people find something deeply unsettling about being told that their minds are not immortal souls, that there isn't something transcendent about consciousness and sensual experience. Various terribly clever thought experiments have been devised with the aim of undermining the assumptions of materialism, and I think that the essay I've linked to does a good job of explaining what's wrong with those thought experiments. At some stage when it's not the day before New Year's Eve, I'll add my own thoughts, in particular an argument aimed squarely at Frank Jackson's "Mary" thought experiment (which will, of course, require telling you just what that little story is first! – and I shall do so with pleasure).

I've stuck this blog entry in mainly to remind me to do just that, because I've been formulating this particular philosophical argument for a while. It's not exactly or even closely related to the argument in Sommers' paper, but Sommers articulates very clearly a problem I've had in general with thought experiments for a long while. Sommers' argument is particularly encouraging in that it strikes quite a blow at David Chalmers' "hard problem" argument against materialism.

*note: "Everything that is" is clearly a little problematic. How about abstract concepts? Numbers? Musical compositions (they're obviously not the same as the paper-and-ink that they're written down with)? How about "goodness"? "Fairness"? We can go on. However, I think the only people who would believe that there is a concrete embodiment of "goodness" would be religious fundamentalists of some sort… And mathematical Platonism isn't that compelling even for many (or most) mathematicians. I think it's fairly clear what I mean by "everything that is", and I'm willing to debate how these abstractions fit into a materialist picture of the world.
*Additionally, I should point out that being a philosophical materialist in this sense by no means implies being a materialist in the political/economic sense of believing that all that matters is material things – and believing thus that possessions are in effect all that matters. This simply doesn't follow at all. Of course, pain and suffering exist, of course aesthetic considerations are important and all these other higher-level things are important. This by no means contradicts my insistence that these things don't have some transcendent existence independent of our materially-existing societies, and the physical people and objects in them, and the memories and personalities physically stored within those people, and finally through the biological and chemical levels to the brute physical existence of inconceivably huge amounts of subatomic particles arranged in inconceivably complicated ways…
*So there. Discuss.


Shizzolate my ass! (10:31 am)

As far as webpage conversion engines go, the Snoop Dogg Shizzolator is perhaps the best yet.


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Wednesday, 25th of December, 2002

The joys of coding (11:27 pm)

I am very proud of myself for managing to add a little "last updated" tag to my right-hand column, so you people can know how recently I've posted music or book reviews. Saves you from missing out if you neglect to check the "reading" section… It turned out to be very simple, when I thought about it, to get MovableType to list the date of the last entry in each category. Still, I'm proud of myself for doing it simply and elegantly… You'll note I highlighted the dates with a pretty colour too, so it's even harder to miss!


Strummer Dead (11:48 am)

Joe Strummer's dead. Dead at 50, suspected heart attack. What a shock.
Don't know what else to say.


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