imiyakawa
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brainstorm said:I see what you are saying now, i.e. how can a brain consist of deterministic chemistry and electrical activity and not be determined in its more complex functioning.
Yes. I accept chaos. I accept systems viewpoints. I don't accept that the brain exists inside the physical universe but does not evolve through time according to physical law. I think this is magical. I need you to show me the exact place where physics breaks down.
brainstorm said:there's another part of my brain that thinks about what I see and what to do about it, and yet another that controls musculature, movement, actions, etc.
Yes, and this other part of your brain is in the physical universe and so is governed by the laws of physics.
(you go on to talk about some other examples of complex brain functioning)brainstorm said:I think the signals compete in such a way as to create conflicting protocols. For example, seeing a bull can trigger an adrenaline/flight response, ...
Non-linearity (violation of the superposition principle) and chaos never ever implies that the system isn't governed by physical law.
You are asserting that this is random, but you cannot say this.. at all.brainstorm said:Yet it is also not totally random which system dominates the other,
Yes, it will be stochastic in the statisticians sense. But only insofar as our ignorance (assuming no truly random quantum events are messing about).
brainstorm said:Perhaps will-power itself is a deterministic process at the level of neural activity, but the particular choice made could synthesize competing information and reasoning in any number of ways depending on the feedback generated by various sub-levels of cognitive experimentation with the parameters of representation of the conflict within the theoretical imagination.
I get what you're saying, this doesn't refute the proposition that the brain "follows" physical law. The brain thinks it has free will with or without the strict laws guiding it. The feeling of free will fits both models. It's too bad for the model that leaves physical causality at the door as the opposing proposition is the most parsimonious, and borders on a deductive certainty.
brainstorm said:Free-will probably evolved as a neural function to intervene in unresolvable theoretical complexity.
I feel you're going back to the other definition of free will, which I've already agreed with. Are you saying that "the ability for the brain to bias physical law evolved as a neural function to intervene..."? If you disagree with this statement, you agree with me. If you agree with this statement, we're in disagreement.
The brain can't bias physical law, though. The brain evolving through time is as a result of physical laws. Any 'biasing' that occurs - i.e. shifts in how the laws operate in complex systems - will also be thanks to physics. Physics for physical systems.
brainstorm said:As a result, it may oscillate between intervention and hesitating and allowing theoretical cognition to continue as long as some other process fails to exert enough deterministic power to overcome it.
This is still random & determined. I cannot see a possible way of anything but randomness and determined-ness existing for any system whilst the micro seems to be comprised of only randomness &/or determinism. I need to be provided with a potential way for a 3rd type of causality before I can deviate from my position: the brain (almost certainly) follows physical law, and that physical law is random &/or determined.
brainstorm said:(Some other ways the brain may process information and arrive at choice-like outcomes.)
I have no problem with this. This is the other definition of free will. You're still not saying why you think the brain won't necessarily follow physical causation of the form of determinism &/or randomness.
brainstorm said:If the random-choice generator was programmed to develop non-random choices by analyzing and learning from outcomes of past escape-choices, maybe the computer would develop increasingly complex free-will.
Yes, this could be a type of free will under the other definition. I thought we agreed that the definition we were arguing was that complex systems can't escape physical causation? (I stated this sooo many times 3 posts ago and 2 posts ago ><).
brainstorm said:Cognition does not have fixed rules. It has variable processes and the ability to mitigate between multiple ones as they conflict.
Correct. Where's the new type of causality that's not random &/or determined?
brainstorm said:It is programmed to avoid short-circuiting or getting frozen in a feedback loop, so it learns to manage its choices.
Look, you seem to have some interesting ideas, but I don't understand why you're disagreeing with me. You're just outlining ways that validate the other definition of free will. The one I'm talking about relates to physics - the agent can't bias the outcomes of what is predicted by physical causation. It shouldn't be able to add a new type of causality into the mix that isn't either random &/or determined.
brainstorm said:The brain does not escape from the force of gravity, except by controlling blood pressure to get blood to flow upward against it, and even then the muscle contraction of blood-vessels to achieve this is determined by autonomic nervous activity. The brain also does not escape the flow of current between the synapses, except to the extent that those are mitigated by factors that evolve in response to learned effects of them firing with disappointing consequences. Each of these natural forces operate independently of the others. Their determinism is not a general force that drives all of them any more than time is a general force that drives all energy-motion occurrences. You are confusing the logical extrapolation of a generality (determinism) for a physical force, which it's not.
So where's this new type of causality that you seem to believe in? I haven't found it in your whole post. You gave me an intro lesson into physics (which I appreciated), some thoughts on cognition and how choices are made. I'm still waiting for the new type of causation. I'm still waiting for the demonstration of how the equation describing the wave packets is biased by consciousness itself and not by the physics itself. Where is the biasing happening? Where's the third type of causation that is not of A) determined &/or B) random? Please claim your Nobel prize already.
brainstorm said:Do you accept my argument that forces do not act on the basis of laws but purely as forces, or rather expressions of force in individual particles and objects?
Why can't we just call them laws? An apple falling from a tree isn't going to stop half way and levitate. For practical purposes, they are laws. That's why physicists call them laws. They run things.
brainstorm said:But this may well be due to the ability of cognition to interpret observations according to patterns and refine the patterns to a level of generality/regularity that allows abstract laws to be stated, which apply to multiple occurrences. The law-like regularity is probably more due to the ability of cognition to generate general categories that distinguish individual commonalities from their differences and focus on the similarity by predicting behavior in terms of them. If you would focus on the reason why different objects fall at different rates, instead of explaining the differences as mitigating factors in uniform force-behavior, no law of gravity would emerge because each falling object would appear to follow its own set of rules according to its shape, where it was falling, what it bumped into on the way down, etc.
Still no new type of causation outlined.
brainstorm said:My position is that the brain's materiality is subject to the same physical forces, but these physical forces do not produce law-like behavior when they interact and conflict with each other's unimpeded functioning.
Correct me if I'm incorrect, but is your position that the entire system as a whole causes a breakdown in laws that are observed in highly controlled/simplistic systems?
This is fine, I know not of any reason to doubt this a priori. But there is still physical causation. There is still law-like relations. No law like relations have been observed to break down in meso systems. We have observed nothing but randomness and determinism on the micro scale. If you can find a way for random/determined processes in the micro to somehow come together, and for a complex system produce a whole new type of causation, then do so, I'm all ears.
Please refute what I'm actually proposing: that the brain runs on laws. I know you've stated that "laws" is a misnomer. Clearly, the physics community disagrees with you. I know you've stated that the brain is non-linear, weighs up alternatives, etc. Yes, but physics must underlie this because the matter exists in the physical universe. You've stated that complex systems "do not produce law-like behavior". Well, if you think billiard balls clanging is law like but complex systems aren't because they're so chaotic, then you don't understand what law-like is. Laws don't have to be pretty and nice just to suit your picture of what physical causation should be.
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