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The Argument From Irreversibility

Fix some arbitrary human person; call him `Bob.' And suppose that Bob is conscious from tex2html_wrap_inline1149 to tex2html_wrap_inline1151 . From Proposition 1' it follows directly (by elementary first-order logic) that there is a TM tex2html_wrap_inline1155 , identical to Bob, such that tex2html_wrap_inline1157 , where this computation is identical to Bob's consciousness from tex2html_wrap_inline1149 to tex2html_wrap_inline1151 . But Theorem 1 implies that some algorithm tex2html_wrap_inline1101 reverses the computation in question. Hence, by Leibniz' Law, tex2html_wrap_inline1101 reverses Bob's consciousness from tex2html_wrap_inline1149 to tex2html_wrap_inline1151 . But consciousness, whether Bob's or yours or mine, can't be reversed. By indirect proof it follows that Proposition 1' is false (since Theorem 1, the other possible culprit, is just that: a theorem). And since this proposition is ``Strong" AI (or Computationalism) incarnate, it follows that this view is in turn false.



Selmer Bringsjord
Fri Sep 6 11:58:56 EDT 1996