[extropy-chat] effing
gts
gts_2000 at yahoo.com
Thu Dec 1 22:16:58 UTC 2005
On Thu, 01 Dec 2005 16:42:33 -0500, Brent Allsop <allsop at extropy.org>
wrote:
>> Is the red quale a phenomenal property of red light (in which case it
>> is universal)? Or is it a property of the neural correlates of seeing
>> red (in which case it may be different for each person)?
> ...you could put a person in room with no light, stimulate his visual
> cortex appropriately - and he will experience red.
I take this to mean you think red is a phenomenal property of the neural
correlates of seeing red, which leaves open the question of how we can
ever know if A sees red like B sees it. I suspect brains are as unique as
fingerprints.
But if the red quale is a property of red objects, or in Locke's terms a
secondary quality of red objects, then there is something we can call the
"absolute red quale". Our job would then be a matter of duplicating that
quale in two or more people.
>> Locke called them "secondary qualities". (Same thing, Brent?)
>
> No, people like Locke and so many others that worked so hard to argue
> about direct perception and such were just idiots
John Locke was an idiot? :) Actually I think his thoughts on this subject
might be helpful.
> qualia do not "operate in a special way on our senses."
That was not his meaning. Locke meant that objects with secondary
qualities "operate in a special way on our senses" i.e., that secondary
qualities of objects produce qualia.
For example "whiteness" is not an *intrinsic* or *primary* quality of
snow. After all snow is made of clear water and ice.
But white is still a quality of snow, because snow *looks* white. Locke
calls that a secondary quality of snow.
He viewed secondary qualities (and tertiary qualities, not very relevant
here) as *powers* of objects. Secondary qualities are the powers of
objects to produce qualia in the experience of an observer. If they exist
in any absolute sense then maybe true effing would be possible.
-gts
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