The existence of the experience of sensation is a self-evident fact.
Of course. I see nobody disputing that. The point that we are making is that this is a trivial fact of the computational model.
For the data processing type hypothesis I do not see at what point something is predicted to be experienced. Will it be experienced after 10,000 computations, or 20,000? More? One computation?
Why is the number of computations relevant? Perhaps you should consider what you mean by "experience"? As I see it, you have the "experience" as soon as the relevant data structure has been formed, ie after zero computations. I am open to the concept that you only have the "experience" if you are conscious about it, ie the subsystem that constitutes your awareness has registered that the data structure has appeared. That would mean a certain amount of extra "computations", but there is no telling if it is a small amount or a large amount. (We know that the brain can make decisions that the awareness part of the brain only registers a little while later; if we know the number of computations per millisecond, then we could infer the number of computations it takes to be aware of something.) Finally, the experience can be extended by including language, memories, experiencing the experience and so on, so everything really depends on what your definition of an experience is.
How does one determine if something counts as a computation that leads to experience of sensation? Is the computing done by your liver less important than the computing done by your brain ... why?
The liver is not a computer, but to answer your question in general, as I said above I do not see the relevance of the number of computations for the model. The whole question of how experiences are treated in the computational model is secondary to the question if the computational model can account for consciousness itself, and I think that few with insight into computers doubt this. The question is only how.
Compare the above with CEMI, as an example. In this hypothesis, the EM field inside your brain is directly related to experiencing sensation. This is testable. Change the field and see what happens. There is a point in CEMI when experience of sensation occurs and it is clear where that point is.
There is no doubt that being a physical entitity, the brain can be influenced by physics, such as EM fields, but I think it is more a question of malfunctioning, because the EM fields messes with the normal working of the brain. But even if it is not, it would not alter the computational model, but merely change our view of how the biological computer works, how it stores its data etc. A computer model that models the actual physics of the brain would not only need representations of neurons and hormones, but also EM fields. More complicated, but still doable.
There exist multiple ways to create logic gates in various physical systems. This should tell us that computation is something apart from physics.
Eh? I am tempted to say that this sentence "does not compute"!
The idea that computation is an essential part of how consciousness works butts up against the above.
There is also the fact that computation is ubiquitous in nature, so why the special pleading for computation in the brain causing consciousness?
Nobody are claiming that computations per se cause consciousness. You cannot have a computer without appropriate hardware, and in this case, the hardware is a brain. Computers with other kinds of hardware exist, notably our electronical computers, and it is conceivable that other kinds of computers may exist.
Thank you for your opinion, but experience of sensation is what we all are, so I do put some emphasis on that term.
It seems to me that you are evading the issue of describing what the "experience of sensation" is. My honest view is that the term is void, and could be replaced by "sensation" alone. Please try to explain why the term makes sense without resorting to emotion.
General data structure is an interesting set of terms.
It is vague because I do not have the faintest idea how the data is stored in the brain. As far as I know, we know to some precision
where it is stored, but not
how. I have read about research where researchers could tell what a person was thinking about, but only by recording the patterns in advance. We seem to be close, but there is still some distance to go.
If you think about something and a picture forms in your mind then you are using your imagination. Imagination involves as its primary aspect experience of sensation, not a complex data structure.
Why do you think that imagination does not involve complex data structures? The reason why some people cannot tell the difference between reality and imagination is that the data structures are essentially the same.
Whether you are a baby or can recognize red as a concept, there is no good reason to expect that the experience of the sensation of red is different. Babies have the same kinds of rods and cones, etc. etc.
I was speaking about the connection to language. A baby that has no language yet will not be able to pin the word "red" to the colour "red".
You do not explain experience of sensation, it is just a fact of life. I dismissed Rocketdodger's experiencing experiencing... because it does not make sense. Experience of sensation is unitary and atomic (at least in a non-altered state of consciousness). You do not experience experiencing sensation, or any other more recursive statement. There is nothing outside of experience for it to experience itself.
I am rather disappointed with this emotional argumentation. Are you claiming that "facts of life" are inscrutable to science? On what grounds do you claim that the experience of sensation is unitary and atomic? I would not be surprised if the word "soul" would crop up in a future post
Being aware is asking for too much. Awareness is needed to answer questions about what experience of sensation is being had or has been had, but there is no need to be aware of every aspect of your consciousness for all sorts of sensations to be there. Talking about being aware of red is just another way to make a topic about experiencing sensation into other more abstract ideas.
Please explain how you get out of an experience that you are not aware of? Actually I thought you would prefer to include awareness in the frame, because as I told you above, I do not think the concept of experience is doing much good otherwise in this discussion.