• ucarr
    1.4k
    We need consciousness to think, therefore we need consciousness to make any inference about consciousness, that's the problem.Skalidris

    You haven't explained why this creates a logical impossibility.Baden

    Skalidris seems to be saying that consciousness, in the form of subjectivity, holds insuperable. If so, then no objective perception of consciousness is possible, and thus the insoluble problem for developing technology that generates subjectivity.

    The undecidability of the question of an advanced cyborg having an innate unique selfhood as distinguished from a technology-based simulation of same might be insoluble.

    I think AI will go forward to a technology-based simulation of selfhood. Can it somehow deviate from its programming into a unique sentience not programmed? In other words, can programming propagate an emergent and unique selfhood?

    Moving towards Bladerunner 2049, can a technology-based emergent selfhood propagate another emergent selfhood in the mode of giving birth to a child?
  • ucarr
    1.4k


    Existentialism, which is centered on “existence precedes essence,” gives us a way forward with our database of scientific disciplines and their methodologies. We, as existentialists, can assert that we don’t really know the world beyond realistic-seeming narratives that, ultimately, in the absence of epistemological certainty, we hold as true on the basis of faith. Going forward from there, we try our best to have integrity as we hold faithful to our realistic-seeming narratives.ucarr

    The undecidability of the question of an advanced cyborg having an innate unique selfhood as distinguished from a technology-based simulation of same might be insoluble.

    I think AI will go forward to a technology-based simulation of selfhood. Can it somehow deviate from its programming into a unique sentience not programmed? In other words, can programming propagate an emergent and unique selfhood?

    Moving towards Bladerunner 2049, can a technology-based emergent selfhood propagate another emergent selfhood in the mode of giving birth to a child?
    ucarr

    So, I predict that technology-based sentience will, per the above speculations, eventually spawn unique sentience not programmed which, in turn, will spawn emergent selfhood in the mode of giving birth to a child.

    This tells us that the insuperabillty of subjectivity of selfhood will be preserved across objective propagation of selfhood. So, the seeming-immateriality of selfhood, preserved as technology-based selfhood, will persist, and organic humans will not be any more certain about what it's like to be an independently conscious cyborg than they are certain about what it's like to be another organic human.

    There will be difficulties in the organic human_independent cyborg relationships, but these difficulties will, to some extent, parallel the human-to-human relationship problems.
  • Philosophim
    2.6k
    I think your point above makes an important clarification: there's something about the native point of view of the sentient that obstructs, so far, our understanding how (or if) physical processes give rise to the subjective experience.ucarr

    Yes, that's correct.

    As I understand you, you're implying that the subjectivity of the sentient is insuperable i.e., it is a container which has no exit.ucarr

    Also correct.

    If it’s true that the subjectivity of the sentient is insuperable, that then calls into question the possibility of objectivity in general. If the sentient cannot know what it’s like to be beyond its own subjective being, then it follows that the sentient cannot know what it’s like for anything, other than itself, to be, whether a stone, a galaxy or another person.ucarr

    Because we go by behavior. Lets say I eat a poison apple and get sick. My eyes glaze over, my pulse races, and I start to sweat remnants of the poison. That's a physical reality that does not depend on how the personal is personally experiencing the sensations of being poisoned.

    It sounds strange, but, in my context here, when we claim to know the chemical composition/interactions of a rock, we’re also claiming to know “what it’s like to be that rock.”ucarr

    Its not strange at all. We objectively do not know what its like to be that rock. What we do is look at the measurable existence of the rock and 'its behavior'. Since we do not ascribe anything the rock 'does' to an internal locus, we say it doesn't behave like its conscious. But do we objectively know it does not have a subjective experience? No. We simply assume.

    To be sure, knowing a rock by knowing its chemical composition/interactions is a much more simple phenomenon than knowing another person by knowing their consciousness, but the difference is a difference of degree, not a categorical difference.ucarr

    The difference is that a human has different behaviors that we ascribe to being conscious. But we cannot objectively know what its like for that other human to have the subjective experience of being themself.

    If we’re locked out of objectivity because of insuperable subjectivity, then we’re thrown all the way back to securing our beliefs on the basis of faith rather than on the basis of science.ucarr

    We are locked out of objectivity in determining the subjective experience of any existence. It is faith that you and I share a similar consciousness. We can note that our behavior may be different, but that doesn't mean our subjective experience during that behavior is different or the same. For example, we could both see the color green, but I subjectively experience it differently then you. Indeed, some people are color blind. This means their subjective experience of green is so similar to another set of colors, that they can't really tell much of a difference. But can a color sighted person every objectively know what that's like? No.

    Existentialism, which is centered on “existence precedes essence,” gives us a way forward with our database of scientific disciplines and their methodologies. We, as existentialists, can assert that we don’t really know the world beyond realistic-seeming narratives that, ultimately, in the absence of epistemological certainty, we hold as true on the basis of faith.ucarr

    This seems to hold on a surface level. Great points Ucarr!
  • ucarr
    1.4k


    The difference is that a human has different behaviors that we ascribe to being conscious. But we cannot objectively know what its like for that other human to have the subjective experience of being themself.Philosophim

    If we use the Turing_Chalmers' argument to the effect: a cyborg externally programmed to behave like a conscious human will appear to be conscious i.e., have a selfhood without that actually being the case, then we cannot be certain that an observed person is really internally conscious i.e., in possession of a selfhood.

    Let me reverse engineer my argument above to apply to what you also said:

    We objectively do not know what its like to be that rock. What we do is look at the measurable existence of the rock and 'its behavior'. Since we do not ascribe anything the rock 'does' to an internal locus, we say it doesn't behave like its conscious. But do we objectively know it does not have a subjective experience? No. We simply assume.Philosophim

    As you say, re: the rock's possible subjective experience, we simply assume not. So, possibly (but unlikely) the rock could be suppressing it's selfhood from expressing as behavior so as to keep its selfhood hidden from observers.

    This is why I claim that my selfhood and your selfhood, though non-identical, approximate each other sufficiently generically so that it's correct to say the difference between the two is by degree instead of categorical. For this reason, then, you and I do know, to some practical degree, what it's like to be the other person.

    Sentient beings cannot navigate the natural world of other sentients without knowing to a practical degree what it's like to be another sentient. Of course there are many problems in our efforts to understand each other. For this reason, books both fictional and non-fictional are written in numbers counting up into the millions.

    ...some people are color blind. This means their subjective experience of green is so similar to another set of colors, that they can't really tell much of a difference. But can a color sighted person every objectively know what that's like? No.Philosophim

    I've underlined the part of your above quote wherein you describe what it's like to be a color blind person without being one yourself. How is it that you can do that? You have enough information, both from science and from descriptions given by color blind persons to approximate in your understanding what the experience of color blindness is like. There is presumably some degree of separation between what the actually color blind person experiences subjectively, and your cognitive simulation of that experience but, again, I claim the difference is by a navigable degree, not by an impenetrable categorical difference.
  • Patterner
    931
    As you say, re: the rock's possible subjective experience, we simply assume not. So, possibly (but unlikely) the rock could be suppressing it's selfhood from expressing as behavior so as to keep its selfhood hidden from observers.ucarr
    Another (unlikely) possibility is the rock subjectively experiences, but has no capability of expressing any behaviors. Maybe it's exactly what we think it is, but conscious.
  • Philosophim
    2.6k
    Yes and No. Yes, we know that it happens in the brain. No, we do not know HOW. That's the HPoC.Patterner

    We're really not that far off from one another. Please don't take my disagreement as hostile. :) The reason why we don't know how is because we cannot currently know what its like to be the thing having the subjective experience. If we could, the hard problem would be solved.

    I am the being having the subjective experience. That does not help me understand how it is achieved.Patterner

    Actually, you could determine how you experience. If you were in brain surgery and a doctor stimulated a region of your brain in the same way and you experienced a sensation every time, you would know how to create the sensation by stimulation your brain. In a less sense, we do this with drugs like alcohol, caffiene, or pain killers. You are the only one who knows what it feels like however. We can't take, "the state of Patterner's subjective experience," and say, "Any time a person drinks alcohol, they will have the same subjective experience of being tipsy as Patterner does."

    We do not know how to go about the HP. That's why it's named the Hard. Because we don't know. How is all of that subjectively experienced?Patterner

    Right. We're along the same lines here again. This is because we can't know what its like objectively for something else to experience being them. That's all there is to it.

    Physicist Brian Greene says there are no known properties of matter that even hint at such a thing. Why do I see red, rather than just perceive different frequencies, the way a robot with an electric eye might?Patterner

    The problem is we're looking at matter and energy externally for behavior. Since we cannot look internally to see what the experience of being that thing is like, we're stuck for now. Do we know how a robot with an electric eye experiences processing? We don't. We can observe behaviors, break it down into its bytes and bits, but when the entire process is running, when the code is flying by at millions of bytes per second, processes being monitored and checked...what is the experience like? We don't know. We currently can't know.

    These things can, and do, take place without any subjective experience.Patterner

    Incorrect. We don't know. Just like I don't know if you have a subjective experience that is like mine at all. We do not know if a robot or a program doesn't have a subjective experience. It doesn't behave like a consciousness, but it doesn't mean there isn't a subjective experience. What is it like to be a bacteria? It responds, eats, and divides. What is it like to the be cells in my hands? The blood in my veins? All of these are living things. Do they have a subjective experience of being? We can't tell, because we can't BE the thing we're looking at.
  • Philosophim
    2.6k
    If we use the Turing_Chalmers' argument to the effect: a cyborg externally programmed to behave like a conscious human will appear to be conscious i.e., have a selfhood without that actually being the case, then we cannot be certain that an observed person is really internally conscious i.e., in possession of a selfhood.ucarr

    What we don't know if whether the robot actually has a subjective experience of being a robot. Its does not have to be the consciousness of a human to have a subjective experience. A dog likely has a subjective experience because of its behavior, but we still don't know what its like to BE a dog.

    To quote Patterner:

    As you say, re: the rock's possible subjective experience, we simply assume not. So, possibly (but unlikely) the rock could be suppressing it's selfhood from expressing as behavior so as to keep its selfhood hidden from observers.
    — ucarr
    Another (unlikely) possibility is the rock subjectively experiences, but has no capability of expressing any behaviors. Maybe it's exactly what we think it is, but conscious.
    Patterner

    I've underlined the part of your above quote wherein you describe what it's like to be a color blind person without being one yourself. How is it that you can do that? You have enough information, both from science and from descriptions given by color blind persons to approximate in your understanding what the experience of color blindness is like. There is presumably some degree of separation between what the actually color blind person experiences subjectively, and your cognitive simulation of that experience but, again, I claim the difference is by a navigable degree, not by an impenetrable categorical difference.ucarr

    Its not unnavigatable, its just not objective. We take these conclusions through behaviors, approximations, and logical applications. I can imagine what it is like to be confused about something I see. So I take that feeling, and combine it with colors. Then I imagine two colors, and both are grey. Now I have an approximate understanding of what its like to be color blind, but I still don't have the objective 'subjective experience' of an actual color blind person.

    Its like describing an apple to someone. You could probably make a pretty good approximation through descriptions based on what people know that aren't apples. But you wouldn't actually know what an apple was like until you saw it front of you. Until you tasted it yourself.
  • Janus
    16.1k
    :up: :cool:

    I would agree with ucarr that the basic sense of self is plausibly thought to be the same across species. Obviously this is not an empirically checkable assertion. It seems that almost nothing in philosophy is.
    — Janus

    I wouldn't say its plausible that the sense of self is the same across species. Even among humans, its known that people have different sense of selves. Did you know that some people cannot mentally visualize? When they close their eyes, all that's there is darkness. That would clearly be a different sense of self then someone who visualizes. Now compare that to a dog, a lizard, and a house fly who have different dna and brain compositions. I'm not saying they don't have a sense of self, but I don't think its plausible that they are the same.

    I would argue as well that poor philosophy is that which cannot be verified, or has no pathways to verify it. Good philosophy does, and eventually becomes part of science or is incorporated into culture.
    Philosophim

    Of course the human sense of self is elaborate. I was referring to the basic sense of self which consists in the sense of being distinct from everything else. It is arguable that this sense comes with being embodied —with the interoceptive and proprioceptive senses that both animals and humans presumably enjoy.

    What is generally considered good philosophy I think would be that which seems most plausible to the most people in light of the whole more or less coherent picture of the world and our place in it which reigns at any historical period. It seems likely there will never be complete consensus but there may be majority consensus.

    As I see it is not a matter of empirical confirmation that distinguishes good from bad philosophy, but rather what is considered to be good philosophy is that which seems to cohere best with the interpretive picture we have built up from those things which can be empirically confirmed.

    Why do I see red, rather than just perceive different frequencies, the way a robot with an electric eye might?Patterner

    How would those different frequencies be "perceived" if not in the form of different colours?
  • ucarr
    1.4k


    Another (unlikely) possibility is the rock subjectively experiences, but has no capability of expressing any behaviors. Maybe it's exactly what we think it is, but conscious.Patterner

    This is an intriguing conjectured phenomenon. One question raised by it that comes to mind is whether or not subjective experience counts as behavior. Usually, when a sentient experiences something, even if it's just observation, that subjective experience triggers physiological reactions that, by definition, are detectable. For example, if a sentient observers the approach of a powerful predator, typical physiological reactions include, acceleration of heartbeat and temperature, dilation of the pupils, and other symptoms of fear and stress. We don't suppose rocks can have such physiological reactions, but as soon as we imaginatively ascribe subjectivity to a rock, assumptions about fight or flight strategies for sake of survival enter the picture.

    If the rock is conscious, but we don't know it, then the rock is far from being exactly what we think it is.
  • ucarr
    1.4k


    Our current turn in the conversation is promising along the lines of further examining the relationship between subjective/objective.

    What we don't know if whether the robot actually has a subjective experience of being a robot. Its does not have to be the consciousness of a human to have a subjective experience.Philosophim

    Right. Our necessarily subjective examination of the robot, like our examination of everything else, terminates in a simulation based upon what we perceive concerning its nature and behavior. Ultimately, we're compelled to put faith in the serviceable accuracy of our simulations of the agents populating the world around us.

    It must be the case that our objectivity is populated by these simulations.

    If a simulation necessarily differs to some degree from its referent, then we can understand that the interface linking self with other is a complicated amalgam of the two. One generalization derivable is that no sentient is totally isolated because even the sentient's own selfhood can be simulated asymmetrically, as evidenced by multiple personality disorder.
  • Wayfarer
    22.1k
    If you're going to argue your position convincingly to someone else, you need to be open to tackling them.Philosophim

    And you need to be open to hearing your interlocutor, and I don't believe that you've been doing that.

    Chalmer’s argument is directed at the inadequacy of physical accounts to accurately capture first-person experience, yours or anyone else’s.
    — Wayfarer

    Didn't you and I already address this on your first response to me? My point was that the heart of why this was is because we cannot know what its like to be another subjective individual.
    Philosophim

    Again, that is not the point of David Chalmer's essay, Facing Up to the Problem of Consciousness. I'm taking issue with your paraphrase of his argument. If you want to argue that this is what he should say, feel free. But it's not what he does say.

    And why is it hard to find why these functions are accompanied by conscious experience? Because we cannot know what it is like to BE that other conscious experience.Philosophim

    Again, it's not what he says. He says that there is no satisfactory theoretical account of ANY conscious experience, not just of other people's or of animals. I've said this a number of times, and then you straight away repeat your incorrect interpretation of his argument. You can take issue with his argument, but that's different to misrepresenting it. That's what I mean by 'not hearing'.

    Alright, then try to counter these points, because these points note that our autonomy is physical.

    1. Drugs that affect mood and decisions. A person getting cured of schizophrenia by medication for example.

    2. The removal of the brain or physical processes that result in life from the brain, and the inability of autonomy to persist.

    3. Brain damage resulting in differing behaviors and consciousness.
    Philosophim

    I think by 'autonomy', you mean 'anatomy'.

    Certainly, physical influences can affect cognition—there’s no disputing that. Drugs can alter mood and behavior, and brain damage can lead to significant changes in consciousness and personality. But this doesn't demonstrate that consciousness is entirely a product of brain activity. It’s important to recognize that causation can work in both directions. Neuroplasticity—the brain’s ability to reorganize itself by forming new neural connections—shows that consciously undertaken actions and thoughts can have real, measurable effects on the brain’s structure and function. This is an example of top-down causation, where mental processes, such as attention, intention, and practice, influence neurophysiological changes, distinct from the bottom-up causation that is implied by physicalism. Your proposed schema is all 'bottom-up'.

    Furthermore, the analogy of the brain as a receiver rather than just the generator of consciousness provides a different way to look at this issue. Just as a radio receives and tunes into waves without generating them, the brain may play a focusing or filtering role, modulating and organizing conscious experience but not wholly creating it. This view contrasts with the dominant idea that the brain produces consciousness in the same way that a factory produces a product. Instead, the brain might serve as a critical instrument through which consciousness manifests and interacts with the physical world. The fact that consciousness can change the brain's configuration through neuroplasticity suggests a dynamic interplay, rather than a one-way causal relationship between the brain and the mind. Besides, the origin of consciousness is arguably coterminous with the origin of life itself, and nobody really knows how that got started.

    I don't know if the split-brain research is really relevant to that. In any case, it is discussed in Chapter 1 of Donald Hoffman's book Case Against Reality. He's a cognitive scientist, with a rather radical philosophical view, which I won't try and explain here. But after reviewing the split-brain experimental data, he concludes:

    We have no scientific theories that explain how brain activity—or computer activity, or any other kind of physical activity—could cause, or be, or somehow give rise to, conscious experience. We don’t have even one idea that’s remotely plausible. If we consider not just brain activity, but also the complex interactions among brains, bodies, and the environment, we still strike out. We’re stuck. Our utter failure leads some to call this the “hard problem” of consciousness, or simply a “mystery.” ...

    What do we want in a scientific theory of consciousness? Consider the case of tasting basil versus hearing a siren. For a theory that proposes that brain activity causes conscious experiences, we want mathematical laws or principles that state precisely which brain activities cause the conscious experience of tasting basil, precisely why this activity does not cause the experience of, say, hearing a siren, and precisely how this activity must change to transform the experience from tasting basil to, say, tasting rosemary. These laws or principles must apply across species, or else explain precisely why different species require different laws. No such laws, indeed no plausible ideas, have ever been proposed.
    — Donald Hoffman, The Case Against Reality, Pp 18-19

    You seem to think that information can only matter if a human is involved. But if information can exist apart from matter and energy, how can this be?Philosophim

    Information doesn't exist in the same way that matter and energy do—it isn't a physical substance or force. Instead, information exists in the relationships between entities, and its significance depends on interpretation. Think of a book: where exactly is the information in that book? The ink on the page is simply matter, but the information arises only when a reader interprets it, and only if they understand the language or code it’s written in. The book itself is not one thing and its meaning another; rather, the meaning emerges through the interaction between the symbols on the page and a mind capable of understanding them.

    Information, in this sense, is relational. It depends on the patterns or structures that carry meaning and on the existence of an interpreter. This makes information fundamentally different from matter and energy—it’s not a physical object but something that manifests through relationships and interpretation. I think this is what Norbert Weiner meant when he said 'information is information, not matter or energy'. And no, not just because he was a poor epistemologist.

    What I'm noting is that the standard model of science posits that the brain is the source of human consciousness, at least in terms of behavior.Philosophim

    I think, actually, that you will find that a very difficult claim to support. You assume that this is what science posits, but there's some important background you're missing here.

    At the beginning of modern science, proper, 'consciousness' in the first person sense was excluded from the objects of consideration. Proper objects were those which could be defined and analysed in terms of the primary attributes of determinate figure, size, position, motion/rest, and number etc. Qualities such as colour, taste, smell, etc, were deemed secondary or subjective.

    Galileo and Descartes made the crucial conceptual division by proposing that physical science should provide a mathematically precise quantitative description of an external reality extended in space and time, a description limited to spatiotemporal primary qualities such as shape, size, and motion, and to laws governing the relations among them. Subjective appearances, on the other hand -- how this physical world appears to human perception -- were assigned to the mind, and the secondary qualities like color, sound, and smell were to be analyzed relationally, in terms of the power of physical things, acting on the senses, to produce those appearances in the minds of observers. It was essential to leave out or subtract subjective appearances and the human mind -- as well as human intentions and purposes -- from the physical world in order to permit this powerful but austere spatiotemporal conception of objective physical reality to develop. — Thomas Nagel, Mind and Cosmos, Pp35-36

    Now, when you say 'the standard model of science', I think this is what you mean. And within that model the only 'real objects' are, well, objects. If 'mind' or 'consciousness' can be said to exist, then it can only be as a product of those objects. That's why you're incredulous at the denial of a causal relationship between brain and mind - to you, it's just 'the way things are'. But I'm afraid it doesn't hold up to philosophical scrutiny.
  • Patterner
    931
    How would those different frequencies be "perceived" if not in the form of different colours?Janus
    We have machines that can differentiate different frequencies. For them, it's binary code.
    BLACK
    00000000
    00000000
    00000000

    RED
    11111111
    00000000
    00000000

    WHITE
    11111111
    11111111
    11111111

    BLUE
    00000000
    00000000
    11111111

    I don't know nearly enough of how our visual system works. My Behe quote stops with a current being transmitted down the optic nerve to the brain. I don't know what happens there. But nothing red or blue happens.
  • Janus
    16.1k
    Our eyes have photoreceptors called rods and cones. Rods detect shades of grey and cones detect different colours. Presumably a machine that can respond to different wavelengths would have some kind of photoreceptors.

    When you talk about how we perceive are you talking about our conscious awareness of our colour perceptions or simply our unconscious responses which arguably go on most of the time? Of course I won't argue that non-biological machines can be consciously aware of their detections of colour differences.
  • Patterner
    931

    The HPoC is why the unconscious responses are accompanied by the conscious awareness, rather than going on "in the dark." They can go on in the dark, as they do in the non-biological machines we've made that can perceive and differentiate different frequencies of the electromagnetic spectrum, and act in different ways in response to different frequencies. The physical processes that take place within us don't suggest conscious awareness. The physical properties of particles (mass, charge, spinn, etc.) don't suggest conscious awareness. So why the redness of red, or the sweetness of sugar? Why subjective experience at all?
  • Janus
    16.1k
    We believe machines don't understand themselves to be consciously experiencing anything. We do understand ourselves to be consciously aware on account of language. How would the thought "I am consciously aware" be possible without language? We reflect on experience and say things like "i saw something red". Perhaps it is that post hoc reflection that makes us think we are sometimes consciously aware. It is only the moments we recall that could make us believe that. Those moments are in the tiny minority. At least for me.

    Physical processes don't suggest conscious awareness, unless you mean behavior. The physical processes that don't suggest awareness don't suggest the absence of conscious awareness either. Nor do they suggest that awareness could not arise from physical processes.

    You ask why subjective awareness at all. Presuming it is a real thing then why not? We have a subjective prejudice that physical stuff could not have subjective experience. Exactly what would be the argument supporting that conclusion? We have nothing to compare our situation with so it remains just an assumption based on intuitive feelings I think.
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