Lars Laborious said:
It is not a homunculus, but the single sensation itself.
A sensation needs both the subject and object of experience in order to “exist”. How can one have an “experiencer” who experiences nothing at all; and how can one have an “experience” which is not being experienced by someone?
Lars Laborious said:
Sensations need to be sensed to exist.
I agree that “sensations need to be sensed to exist”. This is precisely why I think it makes no sense (it is irrational) to suggest that a “sensation” can exist in absence of “something doing the sensing”, just as much as it is irrational to suggest that “something which is doing any sensing” exists in absence of a “sensation”. It’s like the “heads” and “tails” of a coin, one cannot have one without the other.
Now there are two ways to solve this problem.
Either one posits that both “sensations” and “something which senses” can indeed exist independently of each other (but this leads to Chalmers’ problems in trying to deal with with “raw experiences” and qualia, and opens the door to dualism),
or one accepts (like Metzinger) that the two are inextricably bound up together, and one cannot exist without the other.
Lars Laborious said:
Does this mean that you believe that raw sensations are fundamental properties of the physical? Or, do you define experience as something else?
“raw sensations” (qualia) are virtual entities which have no objective existence outside of the virtual world created inside consciousness. The information processing that is consciousness creates a virtual subject (the conscious self) and a virtual object (the raw sensations as you call them) which exist as entities only in relation to each other, within the information processing of consciousness.
Lars Laborious said:
Agreed. I too believe that robots can be conscious. But you can still imagine robots that do not have phenomenal experience. The same goes for a world without phenomenal experiences.
Agreed. A world in which there are no conscious agents would be a world without phenomenal experiences (no qualia, no self, no experiences).
Lars Laborious said:
In such a world it’s hard to see how raw phenomenal experience/sensations could arise through physical movements (or a process, if you want).
I don’t see that at all.
Imagine we create a robot with visual colour receptors, linked to an image processing unit, a memory where it can store information about images it has previously processed, a developed sense of “conscious self” within it’s processing routines (so that it thinks it is an agent which is actually “looking” at images via it’s visual colour receptors), an ability to form subjective impressions based on the quality of images, and the ability to interpret and report on the images that it is processing. All of this is purely physical, and given that you agree that robots can be conscious, you should have no trouble imagining this.
Now we ask the robot : What does it “feel like” when you look at a red object? And a green object?
Why should its answers be any different to a human answering the same questions?
Where does “raw phenomenal experience” come into it?
Lars Laborious said:
Because I remember when I first ”realised” that I have a “self”. Up to that point I had simply experienced the world without relating the experience to a “me”. It was all just sensations. I had an experiencing center, but not the feeling of “self”.
I think it comes down to a definition of terms.
You may not have been consciously aware that you were creating a “self” (how could you be consciously aware of creating a self until you have done so anyway, in some kind of bootstrap process), but to me the mere fact of “having experiences” creates automatically something like a “centre of virtual gravity” to which these experiences relate. I think that what very young children probably lack is a well-defined conscious notion of “who they are”, but this does not mean that there is no “self” that is created within their minds (its just that they haven’t consciously acknowledged it as a “self” yet, because their consciousness has not fully developed).
Lars Laborious said:
It sounds to me that you either see experience as something else than phenomenal sensation (perhaps just physical reactions), or that you in fact think that physical movements that lack sensations can create sensations that are being sensed. I find it hard to believe the latter on the grounds that sensations and the physical differ in that sensations are presentations of the physical. The “presentation-substance” would have to be there allready.
I see qualia as being a virtual creation within an information processing system, a system which simultaneously also creates a virtual self.
Lars Laborious said:
Self-experiencing sensations.
That is precisely what Metzinger’s paper is all about.
The question is whether the “conscious self” exists independently of any “conscious experience”. I believe it does not. And you?
Lars Laborious said:
In a world where phenomenal sensations/experience were fundamental properties, I would agree to your analogy. But I suspect that you believe that phenomenal sensations are not real, only physical reactions. In that case, this would be as if I were having a discussion with a non-experiencing robot;-)
I do not believe they are physical reactions. Phenomenal sensations (can we please try to agree on
one name for these things – either phenomenal sensations, or qualia, or raw phenomenal experience?) are virtual entities, just as real or unreal as the virtual objects in a computer game. This does not mean that consciousness is virtual, and it does not mean that “I” am not having experiences of “qualia” (because “I” and the “experiences” and the “qualia” are together part of the creation of my consciousness).
Lars Laborious said:
I can’t prove that a real physical world exists outside qualia, but if it does, how can you avoid seeing that a physical job is different from phenomenal experience?
I would suggest that you cannot even prove (to anyone else except yourself) that qualia exist. But think about it - Isn’t this exactly what one would
expect if “you” (ie your conscious idea of self) were a “virtual” entity experiencing “virtual qualia” within your brain? It would look just as you have described – the qualia would “seem” real to you, and you would think that there is nothing else apart from qualia which you could prove existed, but at the same time other agents would deny that your so-called qualia have any physical existence and insist instead on using the so-called objectively real world as a basis for communication.
Lars Laborious said:
Yes, the experience would be concrete, but not physical in the normal sense. The “physical” would be implemented in/sensed through phenomenal experience. The physical are a set of properties that follows categorical rules within phenomenal experience/qualia.
Whereas I think it is just the other way around.
Lars Laborious said:
I agree. But saying that sensations aren’t being experienced - that they are just physical processes - is equally explanatorily inadequate, since we base all our knowledge on phenomenal experiences. A self-experiencing sensation would stop the buck from being passed, but of course it raises other questions.
I am not saying that sensations are not being experienced.
I am saying that consciousness is an information processing phenomenon which creates within itself virtual entities of “qualia” and “self”. The consciousness (information processing) is very real, but the virtual self is simply experiencing virtual qualia within that consciousness. This IS a “self-experiencing sensation” – so I think you and I are closer to agreement than we perhaps recognise.
Lars Laborious said:
“How is it possible” is a question which can be asked about anything and everything, and it is a question to which ultimately we have no answer.
Lars Laborious said:
Need it "mean" anything?
Meaning is an attribution made by an observer. We can have observers within the system who attribute meaning to parts of the system based on other parts of the system. But there can be meaning in the "system as a whole" only if there is an outside observer.
Lars Laborious said:
I in fact believe that one could not separate experience from the experiencer.
This is precisely what I am also saying….
Best Regards
MF