>Related distantly to the Wittgenstein quote [dreaming] noted elsewhere,
>I have been reading in Foucault about the very devious Descartes ...
>who SEEMS to say in the MEDITATIONS that certainty only comes from the
>ability to doubt, essentially, to think, to use reason - more or less a
>good point - but that if one can doubt one's sanity one cannot
>therefore truly be mad.
>All Descartes says - I think - is:
you may be confusing Descartes with Heidegger who removed the 'ergo'
from Descartes statement and then promised a 'deconstruction' of the
'cogito, sum' which he never delivered.
>Now, as I understand it, all certainty depends [A] upon the ability to
>use self-evidencing logic, and [B] the nature [definition] of God means
>He cannot deceive, so [C] He would not deceive us with the use of our
>senses insofar as they are examined especially as to perception and
>extension.
the initial certainty that I am does not depend on God. God gets dragged
into the inquiry at a later point to justify the conclusion that there
is a physical universe external to the awareness of the experiencer.
>I cannot see how dreaming or insanity cannot be equally 'real' to a
>waking state since all these states exist with and are judged only by
>their internal consistency. But I am sure someone can show me the error
>of my ways.
each of these states is equally evidential as to the reality of the
experiencer. they all support parallel inferences: 'I am dreaming;
therefore, I am', 'I am insane; therefore, I am' or 'I am awake;
therefore, I am'.
it doesn't matter whether the experience of dreaming or being insane is
or is not internally consistent.
Joe
--
Nothing Unreal is Self-Aware
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http://what-am-i.net
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