Hi William R. Buckley 

But experience is concrete, but a computer can only deal in abstractions,
which at best are descriptions of experience. 

It like the difference between having sex and just talking about it.


Roger , rclo...@verizon.net
8/17/2012 
Leibniz would say, "If there's no God, we'd have to invent him so everything 
could function."
----- Receiving the following content ----- 
From: William R. Buckley 
Receiver: everything-list 
Time: 2012-08-14, 14:16:47
Subject: RE: Why AI is impossible


John:

Regardless of your dislike for the term omniscience versus universality, the 
Turing machine 
can compute all computable computations, and this simply by virtue of its 
construction.

wrb

From: everything-list@googlegroups.com 
[mailto:everything-list@googlegroups.com] On Behalf Of John Clark
Sent: Tuesday, August 14, 2012 9:39 AM
To: everything-list@googlegroups.com
Subject: Re: Why AI is impossible

On Mon, Aug 13, 2012 at 8:09 PM, William R. Buckley <bill.buck...@gmail.com> 
wrote:

 > Consider that the Turing machine is computational omniscient[...]

Turing's entire reason for inventing what we now call a Turing Machine was to 
prove that computational omniscience is NOT possible. He rigorously proved that 
no Turing Machine, that is to say no computer, can determine in advance if any 
given computer program will eventually stop. 
    
For example, it would be very easy to write a program to look for the first 
even number greater than 2 that is not the sum of two prime numbers and then 
stop. But will the machine ever stop? The Turing Machine doesn't know, I don't 
know, you don't know, nobody knows. Maybe it will stop in the next  5 seconds, 
maybe it will stop in 5 billion years, maybe it will never stop. If you want to 
know what the machine will do you just have to watch it and see, and even the 
machine doesn't know what it will do until it does it.

  John K Clark



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