Re: Turing Test

From: Grady, James (
Date: Fri May 26 2000 - 22:30:33 BST

Could there be a purely T3 robot? (i.e. a robot which passes T3 but not T5)

A T3 robot would have to be externally indistinguishable from a human
by a human. Now to do this it would have to be symbolically grounded in
the same/similar way as/to a human. However this is impossible. A T3
robot is not going to have the same weaknesses and needs as a human.
For example an apple is going to be a red/green fruit to both machines
(inc. human) however it is only going to mean 'nourishing' to the
human. Therefore a T3 robot IS going to be distinguishable.

In the same way you would need a T3 robot to pass T2, you would need a
T5 robot to pass T3. A robot must not only interact with the
environment but also do it in the same way as a human. Otherwise it
would not pass T3.

This to me seems to be a fundamental weakness of Turing. Would it be
enough to have a test in which a robot has to convince a panel of
judges that it is able to think (i.e. not just that it is human).
Surely if it is able to convince a panel of judges, say over a period
of a week (or even years), that it was thinking then it WOULD be

from james grady, (i.e. not sent from my uni address)

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