Any macro property is reducible to the properties of particles and the four forces. Individual particles aren't liquid, solid, or gas. But we know how the properties of particles make a group of particles liquid, solid, or gas. Particles don't fly. But we know how the properties of particles give rise to things like aerodynamics and lift, allowing flight. We can't see enough detail to calculate the results of the cue ball hitting the balls on the break, much less calculate every particles movement in a hurricane. While have much success calculating what masses of air are going to do, it's all because of the particles.So, if brain function is necessary for consciousness, what reason do we have for thinking consciousness could be something non-physical? — Janus
Yes. The elements don't join together simply by bumping into each other. You need a little burst of energy. How many of these little bursts will we need to make all the water in a brain?I don't know about shaking the hell *out* of it. But shaking the hell *into* it makes water.
I just applied a chunk of burning sulfur to my big bag of hydrogen and oxygen... ...and hell!!! — wonderer1
I guess you can't argue with that. But I am skeptical. :D We also wouldn't see them if there weren't any. While not seeing any is not proof that there aren’t any, neither is it proof that there are. And our ability to list any number of reasons why we might not expect to find evidence of them is not evidence of them.Science suggests this bubble was started by a big bang about 14 billion years ago. Boltzmann Brains could have existed before our big bang, either in previous bubbles or from a quantum fluctuation. Or if there is a multiverse, there could be infinite Boltzmann Brains existing right now. We wouldn't see them from our bubble. — Down The Rabbit Hole
Perhaps the answer to that will give the answer to, as Chalmers put it, Why is the physical "processing accompanied by conscious experience? Why does it feel like something from the inside? Why do we have this amazing inner movie going on in our minds all the time?"I don't know what those who think it is an illusion think it is. Still working on it.
— Patterner
I believe they think it is a physical process, just like anything else. Of course, that begs the question as to what exactly "physical" denotes. — Janus
I can't say I understand the argument in any way. Heh.The argument that consciousness and the self are illusory does not entail that we don't exist. As I understand it, it is more saying that we imagine consciousness and the self to be in some kind of way persistent entities, and that this is an illusion of reification. — Janus
The camera will only record what happens in a certain part of the spectrum. It will also record what the magician does with the cards. But it does not see the illusions. It is not amazed because it expected one thing and got another, despite not seeing how it could possibly have happened. Only we sees illusions.Your 'mirage' example, the illusory appearance of water on a road or plain will "fool" a camera just as it may fool a human. — Janus
True enough.In any case I'm not arguing for the position I have (rightly or wrongly) imputed to Dennett; it doesn't make convincing sense to me. either, but I acknowledge that making sense is a subjective matter; meaning that what makes sense to me may not make sense to you. — Janus
An illusion needs a viewer. The waves of heat coming off the road on a hot day with strong sunshine give the illusion of water on the road. IF someone is there to see it. If nobody is there to see it, then there is no illusion. Same with a magician who makes a card disappear. There's no illusion if the seats are empty.Some claim that we are in fact in such a situation, that we don't really experience anything at all but just have the illusion that we do. — Janus
Oddly, I never much watched it. No particular reason. I only saw a few scattered episodes. I'd like to. Guess I'll see if it's available on one channel or other.I'm not of that generation, but I can respect the nostalgia.
As your tastes are similar to mine, you must be a Stargate fan. SG1 if my favourite Sci-fi series. — Down The Rabbit Hole
Are we not material? Or did our consciousness arise unnaturally?And RogueAI is saying from the view that material cannot naturally give rise to consciousness, Boltzmann brains cannot exist in any event. — Down The Rabbit Hole
I don't account for it. Although it's fun, I think this whole topic is nonsense.But my point, aside from the fun, is that there will be an infinite number of Boltzmann Enterprises
— Patterner
How do you account for 'paradox' in your 'every possibility that can happen, will happen in time.'
If I state 'The only true existent regarding Boltzmann brains is that they have no true existent.'
Is that statement true given a very large or even infinite duration of time? — universeness
I grew up on TOS. I know a lot of people find it unwatchable because of the effects, but it and TNG are my favorites. Then Voyager.I enjoyed TNG the most, followed by Voyager I think. I was just getting into Discovery and Netflix took it off :sad: I won't spoil Picard Season 3 for you, but it gets a lot better. There's some nice surprises. — Down The Rabbit Hole
I’ve never been in a sensory-deprivation tank. I suppose an extended stay in one might give hints on how much of our self would remain if our brain was removed and put in a life-support mechanism that gave no sensory input. Certainly, we need sensory input to develop a self. I wonder how much we need it to remain a self.The only part of you that you cannot lose, and still think of yourself as you (and, for that matter, still think), is your brain. If you could no longer walk and type and wave, and see and hear and taste, you’d still be you. (Though you might wish you were not.)
— Patterner
I agree, of course, that If I lose my brain, I cannot think of myself as me. But it would be a very delicate balance to produce exactly the right brain damage to achieve loss of self without immense collateral damage up to and including death.
However, I do think that more than just a brain is needed to maintain a sense of self. It's not quite the same issue, but you did say earlier:-
We certainly need sense-data for our brains to form connections and pathways, and for consciousness to form. (Anybody think an infant born with no ability to sense anything will become a thinking person?)
— Patterner
There's a constant temptation to identify this or that feature of human beings to this or that physiological component. Often, that's possible. But not always, and being a person is a case in point - or so it seems to me. — Ludwig V
That is incredible! Thanks.The only part of you that you cannot lose, and still think of yourself as you (and, for that matter, still think), is your brain.
— Patterner
Man with Tiny Brain Shocks Doctors — Wayfarer
Yes, it seems awkward to say the self is consciousness, even if there is no self without it.The only part of you that you cannot lose, and still think of yourself as you (and, for that matter, still think), is your brain. If you could no longer walk and type and wave, and see and hear and taste, you’d still be you. (Though you might wish you were not.)
— Patterner
I agree. I think the brain, neuroscience, and structure and function generally, is totally relevant to the issue of what constitutes the self. But the self isn't consciousness. All reductionist theories of consciousness would be better reframed as theories of the self. — bert1
I don’t understand. Has there already been an infinite duration?In an infinite duration, and as all possible existents are of finite duration, then everything would have happened already. — Wayfarer
The only part of you that you cannot lose, and still think of yourself as you (and, for that matter, still think), is your brain. If you could no longer walk and type and wave, and see and hear and taste, you’d still be you. (Though you might wish you were not.)Can't imagine the mind exists independent of the brain. Seems to me the mind is the brain, doing... mind things.
— Patterner
It's complicated. My heart pumps blood; I don't. My kidneys filter my blood; I don't. My muscles move my arm, fingers, legs; but I (and not my brain) walk and type and wave. My brain is clearly a key part of seeing and thinking, but I do those things, not my brain. — Ludwig V
The die has an infinite number of sides. Not the finite number that the one you postulate has. It's not simple arithmetic. You could roll this die an infinite number of times, and you would never see every side. There are an infinite number of sides you would never see.But with an infinite number of possibilities that are not works of literature, including an infinite amount of gibberish; an incomprehensibly large number of combinations of the same number of letters, punctuation, and spaces as Shakespeare's works that are not Shakespeare's works; and a rather large number of works of literature that are not Shakespeare's works... I'd bet against it.
— Patterner
So given a die with 1010000000 sides, one of those sides corresponds to the complete works of Shakespeare, and the rest other things, mostly gibberish. You're betting that if this die is rolled an unlimited number of times, most of those other sides will come up an infinite number of times, but the one side in question will not come up even once.
You're not a math major either I take it. Neither am I, but I can do simple arithmetic at least. — noAxioms
Anything's possible. But with an infinite number of possibilities that are not works of literature, including an infinite amount of gibberish; an incomprehensibly large number of combinations of the same number of letters, punctuation, and spaces as Shakespeare's works that are not Shakespeare's works; and a rather large number of works of literature that are not Shakespeare's works... I'd bet against it.A single immortal monkey who never stops outputting random characters is all that is needed to eventually put out any finite work of literature, buried of course with gibberish on either side. — noAxioms
Heh. I suspect not.In the mean time we are making a philosophical mistake that was first made by Plato - thinking that the latest scientific development is the answer to everything. — Ludwig V
Can't imagine the mind exists independent of the brain. Seems to me the mind is the brain, doing... mind things.I don't think a disembodied mind can exist, although it seems that people can not only imagine such a thing, but believe in it. — Ludwig V
Never stopped me. If I haven't already demonstrated that, it won't be long.Now I'm rambling because I don't have anything coherent to say. — Ludwig V
Heh. Yes. Causal. Knowing the speech to text and swiping make a lot of errors, I try to proofread. I obviously do not always succeed.I think consciousness is casual.
— Patterner
I’m puzzled. I think “casual” here may be a typo. Is that right? — Ludwig V
I do. We do more than notice.Our consciousness, our awareness, is nothing more than lumps of matter noticing what’s going on.
— Patterner
I don't disagree. — Ludwig V
There's a lot of territory to cover here.But there are different kinds of lumps of matter. Some of them are conscious. Others are money. Others are people we love.
I’m still puzzled.
Are numbers, words, logical variables, musical notes, lumps of matter? What about shadows, rainbows, surfaces, colours, boundaries, sub-atomic particles?
Votes, contracts, insults, punches, all involve lumps of matter, but are they lumps of matter?
Pictures are lumps of matter, but are they just lumps of matter like any other?
Card games all involve lumps of matter, but does that mean there is no important difference between them? Banknotes are all lumps of matter, but it doesn't follow they all have the same value. — Ludwig V
I would tell them I disagree. I do not think our thoughts are the result of nothing but the arrangements of the constituent parts of our brains that come about due to the laws of physics. We certainly need sense-data for our brains to form connections and pathways, and for consciousness to form. (Anybody think an infant born with no ability to sense anything will become a thinking person?)Let me try an analogy. There used to be a popular philosophical theory – sense-datum theory. This argued that everything that we know, including our concepts, comes from the senses. Many people took this to mean that everything can be reduced to sense-data. Hence, physics can be reduced to sense-data. So what would you say to them? — Ludwig V
I've had Op 127 in my head since your first response to me. Finally listening to it right now.Love your quartets, btw.
— Patterner
I'm glad to hear it. I love them too. I wish I had written them, but glad I don't have to live that tortured life. — Ludwig V
I'm referring to the idea of a category. Physics explains everything in the category of the physical and nothing in any other category. So most radical reductionists are making a category mistake. The best way I can think of to explain this is by quoting the Wikipedia entry "Category mistakes":-
The term "category-mistake" was introduced by Gilbert Ryle in his book The Concept of Mind (1949) . . .
The phrase is introduced in the first chapter. The first example is of a visitor to Oxford. The visitor, upon viewing the colleges and library, reportedly inquired "But where is the University?" The visitor's mistake is presuming that a University is part of the category "units of physical infrastructure" rather than that of an "institution". Ryle's second example is of a child witnessing the march-past of a division of soldiers. After having had battalions, batteries, squadrons, etc. pointed out, the child asks when is the division going to appear. "The march-past was not a parade of battalions, batteries, squadrons and a division; it was a parade of the battalions, batteries and squadrons of a division." (Ryle's italics) His third example is of a foreigner being shown a cricket match. After being pointed out batsmen, bowlers and fielders, the foreigner asks: "who is left to contribute the famous element of team-spirit?" He goes on to argue that the Cartesian dualism of mind and body rests on a category mistake. — Ludwig V
Thank you! I just bought it. I hope I'm up for it.I highly recommend Peter Tse's The Neural Basis of Free Will: Criterial Causation. — wonderer1
Well, I don't think that. I am speaking from my understanding of the reductionist view. Again, the idea that everything is reducible to physics. Our consciousness, our awareness, is nothing more than lumps of matter noticing what’s going on. As Annaka Harris put it:Let me try again. The physical events in our brain - let's say - cause (or maybe underlie) our awareness, so although they are not dependent on our awareness, they can't take place without our awareness. I can't imagine why you think our awareness has no causal ability. — Ludwig V
In his book, Gazzaniga says:Surprisingly, our consciousness also doesn’t appear to be involved in much of our own behavior, apart from bearing witness to it. A number of fascinating experiments have been conducted in this area, and the neuroscientist Michael Gazzaniga describes some of them in detail in a wonderful chapter aptly titled “The Brain Knows Before You Do” in his book The Mind’s Past.
We human beings have a centric view of the world. We think our personal selves are directing the show most of the time. I argue that recent research shows this is not true but simply appears to be true because of a special device in our left brain called the interpreter. This one device creates the illusion that we are in charge of our actions, and it does so by interpreting our past-the prior actions of our nervous system.
I'm thinking of my Kurzweil quote. (Hofstadter also discusses it in I am a Strange Loop, but that's a longer quote.) Although it's easier to work with things at higher levels, everything reduces to physics. Ultimately, everything is the interaction of particles and the four forces.That's all there is,
— Patterner
I don't know what that means. — Ludwig V
I don't know what you mean here.The physical events - which we think of in terms of neurons and brain structures, but which are ultimately reducible to particles movements and interactions - would still take place without our awareness. And our awareness doesn't add anything, because awareness has no causal ability. It's all physics.
— Patterner
You misunderstand. What goes on in our brain is the physical basis of awareness, so if what goes on in our brains were any different, we would not have awareness. As to the causal effects of awareness, it would be contrary to physical laws if there were none. We just don't know what they are yet. — Ludwig V
I was going to say much the same thing. If all of our consciousness and awareness, thoughts of the future - all of our mental characteristics - are reducible to the laws of physics, then how do we say physics doesn't produce computers? That's all there is, if that's all our consciousness is. And that's all our consciousness is, because the laws of physics cannot produce something that is outside of itself."...Yet the basis of human activity is physics. But physics left to itself does not produce computers."
↪Ludwig V
I'd say physics left to itself produced stars, which produced the elements of which the Earth is composed. Physics occurring on the Earth through evolution produced brains, and brains can reasonably be considered computers. (Though not digital computers.) The operation of brains is still physics and resulted in the production of digital computers. So in a roundabout way physics left to itself did produce digital computers. We just don't tend to think of ourselves as being aspects of "physics left to itself". — wonderer1
We understand how the properties of particles that we are aware of give rise to the macro properties. Physical properties like liquidity, as well as physical processes like flight. There is no macro property that is not, ultimately, due to properties of the micro, even if we don't think about it that way.
— Patterner
That's true. The problem is that physics defines itself in such a way that it cannot recognize anything else. So friendship, love, hatred, tyranny, democracy cannot occur in a theory in physics. One can sometimes "reduce" things to physics, like the aurora borealis or heat. But the beauty of the aurora borealis is not reduced, but eliminated, and there is an argument about whether heat is the motion of molecules or a sensation, which is not something that can be recognized in thermodynamics. That doesn't resolve the problem, but perhaps does something to explain why it exists. — Ludwig V
I'll ask you the same as I ask everyone who asks this question...
Why does any of this constitute or necessitate subjective awareness. or consciousness, or the capacity to experience?"
— bert1
... What would an answer look like? Give me an example answer. It's doesn't have to be the right answer, just an example of what sort of thing would satisfy you.
Like if I said "no one has yet answered the question of what is 567,098,098 * 45,998,087" I could clearly tell you what sort of thing I would accept as an answer - I'm expecting some big number - even though I don't know what that number is. Without that framework, I don't see how I could possibly claim that no-one's answered the question yet.
So what's the sort of thing you'd be satisfied with? If I went into my lab tomorrow, had a really good look at some brains, and came back to and said "Brain activity requires consciousness because..." What would you accept? — Isaac
At https://www.frontiersin.org/articles/10.3389/fnhum.2022.767612/full, Peter D. Kitchener and Colin G. Hales say:It is not captured by any of the familiar, recently devised reductive analyses of the mental, for all of them are logically compatible with its absence.
According to these two quotes, physicalist/materialist/materially reductivist (What term is currently being used?) approaches do not address consciousness, and they explain things nicely without it. That seems like an important question to me - Why is it happening at all? If behavior is the result of stimulus & response, even vastly complex webs of S&R, then what use is any awareness of it all, or qualia? There are machines that can differentiate frequencies of the visible light spectrum to much greater detail than we can, and perform actions based on which frequency they are detecting at any given moment. There can also be other criteria involved in figuring out which action to take.The approach the majority of neuroscientists take to the question of how consciousness is generated, it is probably fair to say, is to ignore it. Although there are active research programs looking at correlates of consciousness, and explorations of informational properties of what might be relevant neural ensembles, the tacitly implied mechanism of consciousness in these approaches is that it somehow just happens.
This reliance on a “magical emergence” of consciousness does not address the “objectively unreasonable” proposition that elements that have no attributes or properties that can be said to relate to consciousness somehow aggregate to produce it.
We understand how the properties of particles that we are aware of give rise to the macro properties. Physical properties like liquidity, as well as physical processes like flight. There is no macro property that is not, ultimately, due to properties of the micro, even if we don't think about it that way.Although chemistry is theoretically based on physics and could be derived entirely from physics, this would be unwieldy and infeasible in practice, so chemistry has established its own rules and models. Similarly, we should be able to deduce the laws of thermodynamics from physics, but once we have a sufficient number of particles to call them a gas rather than simply a bunch of particles, solving equations for the physics of each particle interaction becomes hopeless, whereas the laws of thermodynamics work quite well. Biology likewise has its own rules and models. A single pancreatic islet cell is enormously complicated, especially if we model it at the level of molecules; modeling what a pancreas actually does in terms of regulating levels of insulin and digestive enzymes is considerably less complex.