Originally posted by Mentat
I hate to have to object so early in the post (I know you don't believe me, but I actually would like to agree with you), but my readings into the philosophy of science have led to quite a different conclusion. Of course, science is for more than just cataloguing causes and effects, but not much more. The scientific method allows for the questions: "What" are we dealing with? "How" does it work? "Where" is it found? "When" is it found? "How" can we reproduce it?
I appreciate your desire to be rigorous, but I think you are being a little too pedantic here. I have been using "why" to mean more or less "how." Why is the sky blue = How is it that the sky is blue = What phenomena account for the fact that the sky is blue. Science can and does answer these questions.
And how is it usually used? In my experience (which, I admit, isn't much), philosophers like to throw the word "experience" around without ever properly defining it.
It is usually used as a reference to the 1st person perspective, the 'what it is like.' It cannot be adequately defined in purely objective terms.
Some people constantly experience the "grace of God" in their lives, constantly helping them. Some people constantly experience the "energy fields" of other people. You cannot have a logical discussion with these people because they will always say something like "you can't understand it with your head, you have to just 'feel' it"...this is, to my mind, the death of logical reasoning.
It is not the death of logical reasoning, although it is a considerable roadblock. I myself have had spiritual experiences involving an intense, 'god-like' feeling and I can most assuredly tell you that I could
not adequately explain it to you in words, no more than I could explain redness to a colorblind person. Unfortunately we are in the business of discussing reality as it is observed to be, and not reality as it is most convenient for us to discuss it, so we cannot just ignore these things.
By the way, I think you are again making the mistake of critiquing inferences made from subjective experiences rather than the experiences themselves. For instance, I see no problem in asserting a divine feeling, but there are of course big problems with inferring from that feeling the existence of a god.
Imagine you are speaking with a colorblind person and you wish to have a discussion about the color red with him. You could perhaps speak in analogies and skirt around the perimeter of the issue, but really you could not ever get across to him what the subjective experience of red is. This is equivalent to saying that there is not an adequate definition of redness that is purely objective (ie, does not reference a subjective, 1st person perspective of redness at some point). Yet we still take it for granted that we see redness all the time; all we need to do is look at a firetruck or somesuch, provided we are not colorblind. This is a fundamental problem in how we can define and talk about redness, but this does not lead us to abolish our conception of subjectively experienced redness[/color].
Greater expenditure of computational resources translates to more frequent re-stimulation of the areas that were stimulated when the thing was processed ITFP, which translates to re-experiencing. I don't see the gap.
Why should those initial processes have been associated with the experience? You have only pushed off the problem here onto a different level of analysis without getting to the core of the issue.
Because the right parts of my brain (the ones that run "searches", perhaps) aren't being stimulated...
Why should those 'right' parts of the brain be associated with experience?
besides, wavelength information is color, if I can tell you what color it was later then all that is lacking is speed on my part.
The way you act can be influenced by color information contained in an unconscious prime without your being aware of it-- that's why it's called 'unconscious.' There would be discernable differences in your activity in the given task but you would not be able to say 'yes, I saw that little dot and it was green' after the fact.
I'll tell you: From materialistic assumptions, it can be allowed that V is an organic machine, born to other organic machines, who have evolved in a social environment. The constant socialization has given rise, over time, to more and more complex thinking ability. At its heart, the "thinking ability" is the ability to process input without the use of mathematics, but (instead) with the use of specialist sub-systems of its CPU. One sub-system is a specialist at processing audio input. It is logical, from a materialistic standpoint, that V would record and process the exact (or as close to exact as possible) sound that it hears ("that it hears" = "that enters its audio sub-system through a sensory organ/reciever), and that this "processing" is smeared out over smaller sub-systems that are subordinates of the full audio sub-system. (Still with me?)
You've explained an interesting computer, but I don't see anything in there that would lead me to say "Ah, yes! That's how experience comes about."
I can now say that, since "experience" is undefined by the opposition (you), I can define it as I wish, and call the processing of this external sound, and the ability to repeat it (along with the melding, in retrospect, of the individual sounds into one noise) "conscious experience", and there should be no counter since you haven't defined "conscious experience" yet...I, at least, have something to explain.
Oh, but I have defined it, and unless you are truly a philosophical zombie, you know exactly what I am talking about.
What you have described thus far is a zombie that is nonetheless indistinguishable from a conscious person from the 3rd person perspective. You have taken advantage of our inherent epistemic limits to pretend as if consciousness does not exist. In reality, for all I know, you
aren't conscious; I simply choose to assume so. But I do know without a doubt that I am conscious, that I have subjective experiences, that I perceive qualities. What you have thus far expounded upon does not begin to elucidate me on how it is that this is so.
This should not be surprising, however, since what you have described is entirely consistent with the notion of a philosophical zombie. As such, you have not yet touched the core of the matter. (If I explain why the sky is blue and my explanation is consistent with the sky being green, then I have not yet done all the work I need to do-- I must explain why it is blue and not any other color.) A truly good explanation of consciousness should be able to discern between sentient beings and zombies-- it should be such that the system it describes is not consistent with being a zombie, but rather must logically entail a system that subjectively experiences.
I know nothing about "blind-sight", so I can't rebut or accept.
http://serendip.brynmawr.edu/bb/blindsight.html
But you haven't even given a reasonable starting-point toward defining "experience", and yet you keep using the word...that's bad philosophy, AFAIC.
I have defined it, albeit not to your liking. Nonetheless, it is the only definition we can use if we are to talk about subjective experience. You use a different definition to try to sidestep our epistemic limits, but in the process you wind up talking about something entirely different from what I am talking about. You explain cognitive functions but you do not explain subjective experience.
How do we know that they have no subjective experience of it? What is "subjective experience"?
The subjective experiences of the patient are those things of which the patient is directly aware in which the patient perceives perceptual/emotional qualities such as redness or sadness.
This is not a moot point...we might as well subsitute "subjective experience" for "uxpjscciie reeentvebe", and kill off all explanations on the basis that they don't explain "uxpjscciie reeentvebe".
How do you know? Can you ever really prove to me that either of us have this uxpjscciie reeentvebe if it is undefined?
Subjective experience is defined, just not entirely from a 3rd person perspective. That is a fundamental limit we have to deal with, not a ticket to absolve us from explaining it in the first place.
edit: If you conceded that we could never explain subjective experience on the basis of such limits and left it at that, I would have much more respect for your position. As it stands, however, you are making the pretense of explaining subjective experience by redefining it into something that it is not, something more amenable to traditional scientific approaches. This is a sleight of hand approach that imagines it has explained something that it really hasn't, and this is really my primary objection to your approach.