David Chalmers Archives



More Generally: Contemporary Thinkers (160)

August 24, 2009

External Coherence and the Reality of The Matrix

David Chalmers writes: I think that even if I am in a matrix [i.e. any computer simulation similar to the one depicted in The Matrix], my world is perfectly real. A brain in a vat is not massively deluded (at least if it has always been in a vat) ... Philosophers have held this sort of view before. The 18th-century Irish philosopher George Berkeley held, in effect, that appearance is reality ... If this is right, then the world perceived by envatted beings is perfectly real: they have all the right appearances and appearance is reality ("The Matrix as Metaphysics"...
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July 22, 2009

The Master Zombie Argument

Berkeley's so-called 'Master Argument' and Chalmers' 'Zombie Argument' are two famous arguments that turn on the relationship between conceivability and possibility. I have been thinking for some time about an amusing (and perhaps somewhat troubling) way of putting the two together. First, let me give simplified versions of the two arguments. The Master Argument (MA): (MA1) Whatever is conceived is conceived by some mind. (MA2) Whatever is conceived by a mind is in that mind. Therefore, (MA3) Nothing can be conceived that is not in a mind. (MA4) Whatever is inconceivable is impossible. Therefore, (MA5) It is impossible for anything...
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