I can tell this to someone who is unfamiliar with them, and they will be able to predict what they will look like.
There’s an ancient philosophical chestnut: “is my red your red”? So this is in fact not clear at all.
They will also be able to predict something of their objectively measurable reflectance properties.
Same argument as for the chemicals applies. You won’t be able to make any useful prediction that doesn’t ultimately rely on your ability to simply perceive red.
What can I do with the claim that water is made of hydrogen and oxygen, that doesn’t rely on “your own petulent insistence to magically intuit” (we’re into the land of Straw Men also) its constitution?
Derive its chemical properties. There is some intuition involved in your knowledge of mathematics, but that’s not the same as relying on an innate intuition as to its constitution. There was some point in time when the constitution of water was unknown, and anyone with enough knowledge of chemistry would have been able to make valuable predictions about the behaviour of water under various experiments once they learned how it was constructed, which did not rely on his ability to intuit the H20ness of water.
But that doesn’t help me recognise it in a rock.
It doesn’t help you recognise it in somebody with total bodily and facial paralysis either. Does it mean that it’s nonsensical to ascribe consciousness to such persons?
How does the consciousness of a corpse relate to the consciousness that animated it in life?
By degree of complexity and organization, if nothing else.
I can tell this to someone who is unfamiliar with them, and they will be able to predict what they will look like.
There’s an ancient philosophical chestnut: “is my red your red”? So this is in fact not clear at all.
I don’t know what point you’re making now. Of course I see my red and from my description of the apple he will know to expect his red. It makes no difference to the present topic whether his red is the same as mine or not. It will make a difference if one of us is colourblind, but colourblindness is objectively measurable.
How does the consciousness of a corpse relate to the consciousness that animated it in life?
By degree of complexity and organization, if nothing else.
How do we measure the complexity and organization of the consciousness of a corpse at above zero?
That there are meaningful statements that cannot be empirically grounded—and the fact that you cannot communicate your own specific experience of redness to someone else shows that it’s not empirically grounded: nobody would (or at least, I’ve never found anybody who seemed to) argue that the concepts of molecular theory or other statements about the material world are similarly ineffible. Insisting that any characterization of the nature of conscious experience in general is superfluous if it yields no predictive power (even if it resolves conceptual issues) is to insist that—categorically—statements that don’t make any predictions about the material world are vacuous. The experience of colour as such serves as one particular counterexample.
How do we measure the complexity and organization of the consciousness of a corpse at above zero?
My entire point is that the idea that you could measure consciousness under any circumstances whatsoever, of a rock, a tree, a person or a corpse, follows from an incorrect application of empirical epistemic standards to conceptual problems.
That there are meaningful statements that cannot be empirically grounded—and the fact that you cannot communicate your own specific experience of redness to someone else shows that it’s not empirically grounded
A blind man once said that although he had never experienced red, he imagined that it was something like the sound of a trumpet, which I think is pretty good. And fictionally:
Menahem sighed. ‘How can one explain colours to a blind man?’
‘One says’, snapped Rek, ‘that red is like silk, blue is like cool water, and yellow is like sunshine on the face.’
— David Gemmell “Legend”
My entire point is that the idea that you could measure consciousness under any circumstances whatsoever, of a rock, a tree, a person or a corpse, follows from an incorrect application of empirical epistemic standards to conceptual problems.
Medics routinely assess the state of consciousness of patients. People routinely, automatically assess the states of the people around them: whether they are asleep or awake, whether they are paying attention or daydreaming.
To me, our experience that we have experience, and our simultaneous inability to explain it, amount to our ignorance about the matter, not a proof that there is any conceptual error in seeking an explanation.
ETA: BTW, I’m not the one who’s giving you a −1 on every post in this thread, and I wouldn’t even if I was not one of the participants.
Medics routinely assess the state of consciousness of patients. People routinely, automatically assess the states of the people around them: whether they are asleep or awake, whether they are paying attention or daydreaming.
What they’re testing is the patient’s responsiveness—If the internal, private experience of consciousness were open to measurement we could simply knock a tree with a rubber hammer or what have you instead of analysing the problem. Any metric of consciousness that you could invent, applicable to humans, would entail some assumptions about how consciousness manifests in humans or at best in animals. You’d be excluding the possibility of measuring it in non-living matter a priori. In effect you’d be defining consciousness to mean whatever is measurable: responsiveness, intelligence, capacity for memory, etc. This is why it’s a conceptual problem—if consciousness is conceptually distinct from those measurable qualities, then how could you justify the use of any particular metric?
our experience that we have experience, and our simultaneous inability to explain it, amount to our ignorance about the matter, not a proof that there is any conceptual error in seeking an explanation
It’s not a matter of proof; I find panpsychism appealing on abductive grounds—if it were true then it wouldn’t be surprising that human beings are capable of consciousness.
Re. downvotes: I march toward the sound of gunfire, so I’ll probably be in negative reputation before too long.
Any metric of consciousness that you could invent, applicable to humans, would entail some assumptions about how consciousness manifests in humans or at best in animals.
The gross signs that doctors measure are just a pragmatic method that does the job the doctors are interested in (saving lives), not a definition of consciousness. The only definition we have of consciousness is the extensional one of pointing to our own experiences. Everything we observe about how this experience is modulated by physical circumstances suggests that it is specifically a physical process of the brain. We may ascribe it also to other animals, but we observe nothing to suggest that it is something a rock could have.
I find panpsychism appealing on abductive grounds—if it were true then it wouldn’t be surprising that human beings are capable of consciousness.
“X implies Y, therefore Y implies X” does not work as an argument, especially when we already know Y (“humans are conscious”) to be true. Any number of things imply Y, including, for example “only humans are conscious”, “all terrestrial animals with a nervous system are conscious”, or “any physically faithful simulation of a conscious entity is conscious.” I don’t see any reason to favour “everything is conscious” over any of these.
The gross signs that doctors measure are just a pragmatic method that does the job the doctors are interested in (saving lives), not a definition of consciousness.
If you already acknowledge this then why did you bring medical tests up to begin with?
Everything we observe about how this experience is modulated by physical circumstances suggests that it is specifically a physical process of the brain
Some physical process in the brain may just as likely simply be involved in organizing and amplifying consciousness as be totally responsible for it.
we observe nothing to suggest that it is something a rock could have
What specifically do we observe in other people to suggest that they could have it? Isn’t the entire point of the “p-zombie” concept to show that nothing we observe about other people could possibly evince consciousness?
“X implies Y, therefore Y implies X” does not work as an argument, especially when we already know Y (“humans are conscious”) to be true
The whole process of model-building is to find X’s which imply Y’s where Y is already known. That’s pretty much what science is, right? Nothing about the world is known purely through deduction or induction. It “does not work as an argument” insofar as it’s not a species of deductive (or, narrowly speaking, inductive) activity; but that’s not to say it’s epistemically inert.
Any number of things imply Y, including, for example “only humans are conscious”, “all terrestrial animals with a nervous system are conscious”, or “any physically faithful simulation of a conscious entity is conscious.” I don’t see any reason to favour “everything is conscious” over any of these.
Because “everything is conscious” is vastly less arbitrary than any of the other choices you’ve identified.
We need to look at the brain activity, whether seeing “red” activates the same parts of the brain for different people.
Take one person, show them a red screen, a green screen, a blue screen. Record the brain activity. Do the same thing with another person. Based on the first person’s data, looking at the brain activity of the second person, could you tell what color do they see?
Thoughts and feelings are not immaterial, they can be detected, even if we still have a problem decoding them. Even if we don’t know how exactly a given pattern of brain data creates the feeling of “red”, these things could be simple enough so that we could compare patterns from different people, and see whether they are similar.
Such an experimental procedure depends on materialism; and materialism itself is the topic under scrutiny.
Which is to say its results would under-determine the materialist/psychist dichotomy.
There’s an ancient philosophical chestnut: “is my red your red”? So this is in fact not clear at all.
Same argument as for the chemicals applies. You won’t be able to make any useful prediction that doesn’t ultimately rely on your ability to simply perceive red.
Derive its chemical properties. There is some intuition involved in your knowledge of mathematics, but that’s not the same as relying on an innate intuition as to its constitution. There was some point in time when the constitution of water was unknown, and anyone with enough knowledge of chemistry would have been able to make valuable predictions about the behaviour of water under various experiments once they learned how it was constructed, which did not rely on his ability to intuit the H20ness of water.
It doesn’t help you recognise it in somebody with total bodily and facial paralysis either. Does it mean that it’s nonsensical to ascribe consciousness to such persons?
By degree of complexity and organization, if nothing else.
I don’t know what point you’re making now. Of course I see my red and from my description of the apple he will know to expect his red. It makes no difference to the present topic whether his red is the same as mine or not. It will make a difference if one of us is colourblind, but colourblindness is objectively measurable.
How do we measure the complexity and organization of the consciousness of a corpse at above zero?
That there are meaningful statements that cannot be empirically grounded—and the fact that you cannot communicate your own specific experience of redness to someone else shows that it’s not empirically grounded: nobody would (or at least, I’ve never found anybody who seemed to) argue that the concepts of molecular theory or other statements about the material world are similarly ineffible. Insisting that any characterization of the nature of conscious experience in general is superfluous if it yields no predictive power (even if it resolves conceptual issues) is to insist that—categorically—statements that don’t make any predictions about the material world are vacuous. The experience of colour as such serves as one particular counterexample.
My entire point is that the idea that you could measure consciousness under any circumstances whatsoever, of a rock, a tree, a person or a corpse, follows from an incorrect application of empirical epistemic standards to conceptual problems.
A blind man once said that although he had never experienced red, he imagined that it was something like the sound of a trumpet, which I think is pretty good. And fictionally:
— David Gemmell “Legend”
Medics routinely assess the state of consciousness of patients. People routinely, automatically assess the states of the people around them: whether they are asleep or awake, whether they are paying attention or daydreaming.
To me, our experience that we have experience, and our simultaneous inability to explain it, amount to our ignorance about the matter, not a proof that there is any conceptual error in seeking an explanation.
ETA: BTW, I’m not the one who’s giving you a −1 on every post in this thread, and I wouldn’t even if I was not one of the participants.
What they’re testing is the patient’s responsiveness—If the internal, private experience of consciousness were open to measurement we could simply knock a tree with a rubber hammer or what have you instead of analysing the problem. Any metric of consciousness that you could invent, applicable to humans, would entail some assumptions about how consciousness manifests in humans or at best in animals. You’d be excluding the possibility of measuring it in non-living matter a priori. In effect you’d be defining consciousness to mean whatever is measurable: responsiveness, intelligence, capacity for memory, etc. This is why it’s a conceptual problem—if consciousness is conceptually distinct from those measurable qualities, then how could you justify the use of any particular metric?
It’s not a matter of proof; I find panpsychism appealing on abductive grounds—if it were true then it wouldn’t be surprising that human beings are capable of consciousness.
Re. downvotes: I march toward the sound of gunfire, so I’ll probably be in negative reputation before too long.
The gross signs that doctors measure are just a pragmatic method that does the job the doctors are interested in (saving lives), not a definition of consciousness. The only definition we have of consciousness is the extensional one of pointing to our own experiences. Everything we observe about how this experience is modulated by physical circumstances suggests that it is specifically a physical process of the brain. We may ascribe it also to other animals, but we observe nothing to suggest that it is something a rock could have.
“X implies Y, therefore Y implies X” does not work as an argument, especially when we already know Y (“humans are conscious”) to be true. Any number of things imply Y, including, for example “only humans are conscious”, “all terrestrial animals with a nervous system are conscious”, or “any physically faithful simulation of a conscious entity is conscious.” I don’t see any reason to favour “everything is conscious” over any of these.
If you already acknowledge this then why did you bring medical tests up to begin with?
Some physical process in the brain may just as likely simply be involved in organizing and amplifying consciousness as be totally responsible for it.
What specifically do we observe in other people to suggest that they could have it? Isn’t the entire point of the “p-zombie” concept to show that nothing we observe about other people could possibly evince consciousness?
The whole process of model-building is to find X’s which imply Y’s where Y is already known. That’s pretty much what science is, right? Nothing about the world is known purely through deduction or induction. It “does not work as an argument” insofar as it’s not a species of deductive (or, narrowly speaking, inductive) activity; but that’s not to say it’s epistemically inert.
Because “everything is conscious” is vastly less arbitrary than any of the other choices you’ve identified.
We need to look at the brain activity, whether seeing “red” activates the same parts of the brain for different people.
Take one person, show them a red screen, a green screen, a blue screen. Record the brain activity. Do the same thing with another person. Based on the first person’s data, looking at the brain activity of the second person, could you tell what color do they see?
Thoughts and feelings are not immaterial, they can be detected, even if we still have a problem decoding them. Even if we don’t know how exactly a given pattern of brain data creates the feeling of “red”, these things could be simple enough so that we could compare patterns from different people, and see whether they are similar.
Such an experimental procedure depends on materialism; and materialism itself is the topic under scrutiny. Which is to say its results would under-determine the materialist/psychist dichotomy.