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- Newsgroups: comp.ai
- Path: sparky!uunet!stanford.edu!CSD-NewsHost.Stanford.EDU!t.Stanford.EDU!ginsberg
- From: ginsberg@t.Stanford.EDU (Matthew L. Ginsberg)
- Subject: discussion with Penrose
- Message-ID: <1992Dec17.160050.9104@CSD-NewsHost.Stanford.EDU>
- Originator: ginsberg@t.Stanford.EDU
- Sender: news@CSD-NewsHost.Stanford.EDU
- Organization: Computer Science Department, Stanford University.
- Date: Thu, 17 Dec 1992 16:00:50 GMT
- Lines: 28
-
-
- I had dinner with Penrose last night, and we talked about his book
- among other things. We agreed on the following:
-
- 1. Penrose believes that his belief in mathematical sentences is
- special; there is something qualitatively different about his belief
- that e**(i pi) = -1, for example, than his belief that he has a stomach
- ache.
-
- 2. Penrose believes that strong AI (the claim that a Turing machine
- can pass the Turing test, for example) is false.
-
- 3. Penrose believes that (1) implies (2), and that the proof is
- basically as outlined in his book.
-
- I think Penrose is right about (3), but wrong about (1) (and therefore
- unjustified in concluding (2)).
-
- It was a very interesting -- and short -- discussion. We realized
- almost immediately that we differed in our beliefs regarding
- mathematical sentences, that given those beliefs the rest of our views
- were completely consistent, and that neither of us had any hope of
- changing the other's views on (1). Penrose did try to get me by
- asking how I felt about "2 is not equal to 3", but I said that was the
- thin edge of the wedge and I wasn't falling for it.
-
- Matt Ginsberg
-
-