Thank you.Wosbald wrote:+JMJ+
Fixed it fer ya.

Moderator: Vraith
"If you can't tell the difference, what difference does it make?"
I assume you're talking to me, since I'm the one claiming this. I hope it's okay to respond directly.Wayfriend wrote:Proposing that there is something "more" to human cognition that is not explained by any natural laws we know about is mysticism. There's nothing wrong with that. But admit it's mysticism.
Deep mysteries only become mysticism when you insert magic or miracles into the gap of explanation--as creationists try to do when they note gaps in the evolutionary account. By explicitly stating that I expect science will one day explain it, I'm doing exactly the opposite. This is nothing at all like believing that unicorns will be proven to exist, because we already know that mind exists.Wayfriend wrote:You can say that one day science will find it. People also believe that one day we will prove unicorns exist.
I'm not sure how this is relevant to the topic at hand.Wayfriend wrote:Such beliefs are only admired by the people who have them, to the rest of us it doesn't look so good.
Why do we think that all of reality will be explained by one set of physical laws? Why do we bother trying to find a Grand Unification Theory that will unite quantum mechanics and relativity? Why don't the greatest minds in science just "see where science leads them," as you say we should, instead of pursuing this goal? We don't blindly follow science. We test hypotheses. A hypothesis is an opinion of the outcome. Not only are they *not* useless, science doesn't advance without them. Science isn't a path we follow, it's an exploration, guided by our intuition, assumptions, beliefs, and opinions. Sometimes we discover criteria that limit any possible future explanation--like Bell's Theorem. It's not unscientific to make a claim that any future explanation (of a given type) must take a certain form. That's a hypothesis we can test, too. If it turns out wrong, fine, it gets corrected.Wayfriend wrote: Further, believing one day science will explain the origin of free will, but not ALSO admitting that one day science could explain how free will is governed by cause and effect, is cherry-picking to support a chosen conclusion. No one knows what science will find. That's why we pursue it. What we think the outcome will be isn't of any use.
I am certainly not talking about spirits and souls. Nor is mind utterly inaccessible to me--it's exactly the opposite. Freewill that's deterministic isn't freewill, it's the illusion of one. You're happy with an illusion? I'm not.Wayfriend wrote:I for one am not happy about some spirit/soul/force controlling what I think from somewhere utterly inaccessible to me, and so beyond my ability to control or abjure or even send a signal to. I am happier having free will that's deterministic. Because it's only me who's in charge.
Assuming I'm reading your objection aright, I think that what he means is that he's happy with a freewill that's determinative. Not that he's happy with a freewill that's determined by an external cause.Zarathustra wrote:I am certainly not talking about spirits and souls. Nor is mind utterly inaccessible to me--it's exactly the opposite. Freewill that's deterministic isn't freewill, it's the illusion of one. You're happy with an illusion? I'm not.Wayfriend wrote:I for one am not happy about some spirit/soul/force controlling what I think from somewhere utterly inaccessible to me, and so beyond my ability to control or abjure or even send a signal to. I am happier having free will that's deterministic. Because it's only me who's in charge.
No, I mean deterministic, as in following cause and effect. But that is, as I see it, the only form of free will that's determinative (I just looked that word up!). It's also the only form of free will that's not an illusion - when your controlled by randomness, or controlled by supernatural phenomenon that you cannot perceive, you are not free. The "free" in "free will" after all doesn't denote "unconstrained", it denotes "not under the direction of something else". If my will is guided by who I am what I think, and nothing else, it is free, whether it follows the natural laws of cause and effect or not.Wosbald wrote:Assuming I'm reading your objection aright, I think that what he means is that he's happy with a freewill that's determinative. Not that he's happy with a freewill that's determined by an external cause.
Neither of us mentioned external causes. I understand that people are talking about physical causation within their own brains. I'm saying that if "freewill" is actually physical causation within the brain, it can't be freewill ... which is what Fist and Faith is also saying.Wosbald wrote: ... I think that what he means is that he's happy with a freewill that's determinative. Not that he's happy with a freewill that's determined by an external cause.
Okay. I think I'm tracking, and I think that we're on the same page. If you think otherwise, feel free to let me know.wayfriend wrote:No, I mean deterministic, as in following cause and effect. But that is, as I see it, the only form of free will that's determinative (I just looked that word up!). It's also the only form of free will that's not an illusion - when your controlled by randomness, or controlled by supernatural phenomenon that you cannot perceive, you are not free. The "free" in "free will" after all doesn't denote "unconstrained", it denotes "not under the direction of something else". If my will is guided by who I am what I think, and nothing else, it is free, whether it follows the natural laws of cause and effect or not.Wosbald wrote:Assuming I'm reading your objection aright, I think that what he means is that he's happy with a freewill that's determinative. Not that he's happy with a freewill that's determined by an external cause.
It does seem to me that one could say "external" inasmuch as one would be referring to that which is "external to an illusion" (with consciousness being understood as nothing but an insubstantial epiphenomenon of physical causation). Once the externality is breached, the illusion dissipates.Zarathustra wrote:Neither of us mentioned external causes. I understand that people are talking about physical causation within their own brains. I'm saying that if "freewill" is actually physical causation within the brain, it can't be freewill ... which is what Fist and Faith is also saying.Wosbald wrote: ... I think that what he means is that he's happy with a freewill that's determinative. Not that he's happy with a freewill that's determined by an external cause.
I know what you're saying, but we can't substitute the laws of physics for "any consistent formal system." Physical laws aren't a formal system. They are contingent regularities, not necessary relations. They are subject to revision by recourse to observation, rather than being necessarily true. They aren't generated by axioms, they are the product of inference and induction. Godel was very clear that his theorem can't be applied to the physical world.Hashi Lebwohl wrote:Godel already covered this topic. We may substitute "the laws of physics" for "any consistent formal system" and thus conclude that there are things which are true--"statements of the language of the formal system"--but which cannot be proved or disproved from within the formal system itself.Zarathustra wrote:Physical laws have no goals. Atoms don't have ideas. The human mind is adding something to the universe that isn't contained in the physical laws which produces it. Both the content of consciousness and the products of conscious people are things that can't determined by physical processes, and indeed violate standard cause-and-effect by being teleological and/or ideal in nature.
The reason one idea follows another is because one reminds me of the next. And the resemblance is not merely in the thought, but in the ways the two things are encoded in our brain. The flow is on two levels. The flow in the thought comes because of the flow in the "atoms bumping around in neurons." The memory that some event brings up is stored in certain ways, and the event that brings up that memory is similar enough to cause that memory to be brought to the surface. They resonate. Pattern recognition. One thought does not bring up another without having caused a resonance.Zarathustra wrote:When one idea follows another idea in a reasonable fashion, the laws of physics don't determine this flow. It's the ideas themselves that are causing other ideas--causation that happens on an entirely different level than the atoms bumping around in neurons.
But no two brains are the same. We don't all encode ideas with the same exact string of connected neurons. The relationship between ideas and neurons isn't one-to-one, but organic. Thus, it really doesn't matter how we encode these ideas. What matters is their meaning. When one idea leads to the next, it's not because the firing of "matrix of neurons X" leads to the firing of "matrix of neurons Y" by some physical, deterministic rule (such that if X fires, so too does Y, necessarily). That matrix could be different for each individual person, with no clear physical rule leading to the firing of the appropriate matrix of neurons for whatever concept we're representing with "Y."Fist and Faith wrote:The reason one idea follows another is because one reminds me of the next. And the resemblance is not merely in the thought, but in the ways the two things are encoded in our brain.
True. Not the same exact string of connected neurons. But the fact that there are variations from one brain to another does not mean they don't work the same way. The same mechanisms are used, even if the exact number of neurons used and paths taken vary.Zarathustra wrote:But no two brains are the same. We don't all encode ideas with the same exact string of connected neurons.Fist and Faith wrote:The reason one idea follows another is because one reminds me of the next. And the resemblance is not merely in the thought, but in the ways the two things are encoded in our brain.
Yes, "matrix of neurons Y" fires because "matrix of neurons X" fired first, triggering Y. Matrix X is a current event (sight, memory, whatever). Matrix Y is a memory. Each matrix is made up of many parts; smaller systems of neural pathways. One of these smaller systems, Sub 1, is a part of both Matrix X and Matrix Y. When Matrix X fires, Sub 1 obviously fires. When Sub 1 fires, it triggers the rest of Matrix Y. And you remember the event that created Matrix Y.Zarathustra wrote:The relationship between ideas and neurons isn't one-to-one, but organic. Thus, it really doesn't matter how we encode these ideas. What matters is their meaning. When one idea leads to the next, it's not because the firing of "matrix of neurons X" leads to the firing of "matrix of neurons Y" by some physical, deterministic rule (such that if X fires, so too does Y, necessarily). That matrix could be different for each individual person, with no clear physical rule leading to the firing of the appropriate matrix of neurons for whatever concept we're representing with "Y."
Humans recognize patterns. Our brains are like film. Expose it to light, and there's an image. The image was not there before the light hit it. Slap your hand down on wet sand. The impression of your hand left behind on the sand was not always there. Expose our infant brains to repetitions of a pattern, and neural pathways develop that recognize the pattern. There are countless patterns in our world. From infancy, the neural connections are being made and reinforced every time someone sees one thing, another thing, and the things together. From repeated exposure to the pattern, the pathways grow. And then the pathways insist on the pattern. When the most basic mathematical fact of 1+1=2 is taught to each of us, it simply puts a label on/gives a name to what we have seen countless times in our lives. If we did not communicate, I imagine some people would come to understand the pattern they see all the time. Each of them rediscovering this basic bit of mathematics. (Doubtless, many people would never realize it in any conscious way.) But we do communicate. The first people to come up with the idea of removing objects from this pattern, the first people to understand that numbers did not have to be attached to things, told others the idea. And it grew and grew.Zarathustra wrote:When people learn math, for instance, they build up networks of connected neurons on the basis of the logical necessity of the relations themselves. The connections formed in the brain don't cause us to recognize that "1+1" = "2." The causation happens in the opposite direction: because we recognize the logical necessity of this operation, we form neural connections to retain this knowledge. The understanding of 2 being the sum of 1 and 1 isn't the product of some physical causality between the firing of two sets of neurons, but instead the necessity that the answer could not possibly be anything else. The causation MUST happen in the direction of ideal truth ==> neural connections, or the validity of math would be completely undermined.
This has nothing to do with resemblance. These thoughts aren't connected because they remind us of themselves. (Perhaps that happens in rote memorization, but we don't contain every single mathematical fact by memorization.) While some form of neural connection is following the logic of math, it is the logic itself that is connecting the numbers/relations, and our thoughts moving from one to the other are caused by this logical connection, not by physical laws. No physical determinism could possibly dictate this flow, because the laws of arithmetic are not physical laws, they are purely formal. Physical laws are contingent, not logically necessary.
The arrangement the billiard balls end up in when they settle after the cue ball hits them is not "programmed" into them in any sense. And I doubt the exact arrangement has come about twice. There are many variables.Zarathustra wrote:The same thing happens when we form new thoughts ... such as composing new music or writing a story. The causation can't be deterministic, otherwise that thought or music would have in some sense always been in our brain somewhere, "programmed" to have happened. We can't possibly think of a new thought or piece of music because of resemblance, or there would never be any new thoughts. They would all be likenesses of old thoughts.
Where does meaning exist in that chain of physically determined neural firing? How do we distinguish between meaningfulness and nonsense (in language) if all our thoughts are actually physical things? A physical process can be meaningless and chaotic, even as it follows physical laws (e.g. a storm). There is no inherent difference between one group of neurons firing vs another, at least not physically. So where does our recognition of meaning come from, if it's all based on physical laws that don't even make a distinction between meaning and chaos, much less meaning and nonsense? Our neurons could fire in completely chaotic ways--a "brain storm"--without violating any deterministic law of physics.Fist and Faith wrote:Yes, "matrix of neurons Y" fires because "matrix of neurons X" fired first, triggering Y. Matrix X is a current event (sight, memory, whatever). Matrix Y is a memory. Each matrix is made up of many parts; smaller systems of neural pathways. One of these smaller systems, Sub 1, is a part of both Matrix X and Matrix Y. When Matrix X fires, Sub 1 obviously fires. When Sub 1 fires, it triggers the rest of Matrix Y. And you remember the event that created Matrix Y.
I wasn't talking about memories, I'm talking about the flow of thoughts as we think of new things, such as making this post.Fist and Faith wrote:It is a deterministic rule. That's how memories work.
Sure, that happens. But that doesn't explain how we *produce* new patterns never seen before, such as new mathematical theorems. Wet sand doesn't make its own, never-seen-before patterns. Our brains are doing much more than taking the imprint of external patterns, more than pattern recognition. We create. And our process of creation doesn't merely follow physical rules. One logical point doesn't lead to another logical point due to following deterministic physical laws--it leads to the next point due to following logical necessity. In addition, we can recognize the truth of logical necessity not merely by the application of the appropriate axiomatic rule, but by eidetic certainty. Computers can apply axiomatic rules. They cannot understand the logical necessity of the result, do not experience an eidetic certainty in the result. Logical and math are more than just psychological habits we learn from experience. They are a "universe" to themselves, a completely immaterial "realm" we can explore without any perception whatsoever. Our exploration of this realm not only leaves behind physical movement and physical perception, but also the deterministic laws upon which our neural framework depends. Sure, neurons are still firing in this activity. But they are "taking the imprint" of things that come from nowhere else than the logical necessity of math and reason. You cannot explain on your account of physical determinism how that happens. Math and reason aren't physical, and yet they're determining the flow of neurons that make up thoughts of them. That's non-physical causation.Fist and Faith wrote: Humans recognize patterns. Our brains are like film. Expose it to light, and there's an image. The image was not there before the light hit it. Slap your hand down on wet sand. The impression of your hand left behind on the sand was not always there. Expose our infant brains to repetitions of a pattern, and neural pathways develop that recognize the pattern. There are countless patterns in our world. From infancy, the neural connections are being made and reinforced every time someone sees one thing, another thing, and the things together. From repeated exposure to the pattern, the pathways grow. And then the pathways insist on the pattern.
But the arrangement into which billiard balls end up is entirely dependent upon initial conditions (i.e. exactly how they were racked up and exactly how you hit the cue ball which strikes them). The arrangement of a work of art depends on something much more than the initial state: a goal, an intention, some murky glimpse of the final state. Creativity is teleological. Just like Donaldson writing for the end. Billiard balls never strive for a particular final shape. They move according to physical laws without any intention, will, or goal.Fist and Faith wrote: The arrangement the billiard balls end up in when they settle after the cue ball hits them is not "programmed" into them in any sense. And I doubt the exact arrangement has come about twice. There are many variables.
How much do you still agree with this:Zarathustra wrote:At some point I think we need to recapture our incredulity for such "accidents." There is more going on here.
The basis of everything I started this thread for is this: The mind is a part of the universe; part of its laws of physics and cause & effect. It is impossible to dispute this.Zarathustra wrote:We turn wonder and awe into a sucking void of "this is not enough in itself, there must be more."
Behe wrote:Here is a brief overview of the biochemistry of vision. When light first strikes the retina, a photon interacts with a molecule called 11-cis-retinal, which rearranges within picoseconds to trans-retinal. The change in the shape of retinal forces a change in the shape of the protein, rhodopsin, to which the retinal is tightly bound. The protein's metamorphosis alters its behavior, making it stick to another protein called transducin. Before bumping into activated rhodopsin, transducin had tightly bound a small molecule called GDP. But when transducin interacts with activated rhodopsin, the GDP falls off and a molecule called GTP binds to transducin. (GTP is closely related to, but critically different from, GDP.)
GTP-transducin-activated rhodopsin now binds to a protein called phosphodiesterase, located in the inner membrane of the cell. When attached to activated rhodopsin and its entourage, the phosphodiesterase acquires the ability to chemically cut a molecule called cGMP (a chemical relative of both GDP and GTP). Initially there are a lot of cGMP molecules in the cell, but the phosphodiesterase lowers its concentration, like a pulled plug lowers the water level in a bathtub.
Another membrane protein that binds cGMP is called an ion channel. It acts as a gateway that regulates the number of sodium ions in the cell. Normally the ion channel allows sodium ions to flow into the cell, while a separate protein actively pumps them out again. The dual action of the ion channel and pump keeps the level of sodium ions in the cell within a narrow range. When the amount of cGMP is reduced because of cleavage by the phosphodiesterase, the ion channel closes, causing the cellular concentration of positively charged sodium ions to be reduced. This causes an imbalance of charge across the cell membrane which, finally, causes a current to be transmitted down the optic nerve to the brain. The result, when interpreted by the brain, is vision.