Do free will and conscious thought exist?

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In summary: This sequence of thoughts does not typically happen in the same way when you decide to turn on the light. In summary, this high school student believes that there is free will, and that it comes into play in situations where people have the choice between two options with different probabilities of success.

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  • #1
Eshi
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"I'm only a high school student, but having recently studied the nervous system I would have to say that there is free will, if free will is defined as the ability for the brain to analyze senses and make create different options, in some cases each with a probability of living, for example if u are on the edge of a cliff, and you look down, ur eyes perceive the depth and height at which you are and this information is transmitted to ur CNS(i'm pretty sure that this isn't an automated response) and you have the choice of going closer, which increases ur probability of falling(which is going to equal death in this hypothetical situation) and backing off which will increase ur chances of survival. So now u make the choice of stepping back, if u did the opposite you are taking a risk factor. Which surprisingly is also a tendency that humans have, since evolutionary speaking living things must take risks to survive sometimes(this tendency is what drives gambling addictions and the rush u get when u win). Now the only reason why you might step forward is because of an advantage you would gain from doing this, such as respect from the community(i.e. your friends being impressed with you). If there is no advantage, then you brain will tell you to back off, and if you do the opposite that usually means ur crazy. I would consider this free will, because u do have the choice. Free will really comes into play in situations where there isn't an advantage, such as taking a left or right at an intersection(and you u don't know where either leads), where u just have to guess, and that is what free-will really is, the ability to take risks and adapt"

this was another one of my posts pulled from 'How do we define life'. This is just my opinion on free-will, or our perception of free-will.

I thought it would be appropriate to start a discussion on this. I do have a purpose besides just debate, my teacher has given our AP bio class a project that can be on anything involving the nervous system, I was thinking of doing a topic on this, so if you could please post some sources to help me get some solid sources when I get around to doing the project. Although I'm a little worried this kind of topic would be too advanced...all I really know is the basic sensory/analysis stuff(i.e. action potentials, and I know how most sensory receptors create action potentials, and I know the basic functions of the different parts of the brain, and basic brain anatomy)

So if anyone has any hints as to where I should look for more info, and it would be cool if I could discuss my ideas with you guys/gals too.
 
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  • #2
It isn't easy to pose questions about consciousness and free will in a scientific way. See David Chalmers' famous paper on the *hard problem* of consciousness for an articulation of most of the reasons why this is difficult.

I believe John Searle directly addresses issues of free will in one of his newer books. You also might want to look up his well known "Chinese room argument".

I see you have strong intuitions that consciousness etc. are real. You might want to look at the work of Daniel Dennett for the dissenting view. Particularly his book "Consciousness Explained" (often nicknamed "consciousness explained away").

For people that directly address the "neural correlates of consciousness" look at the work of Francis Crick and Cristoph Koch. Particularly Crick's book "The Astonishing Hypothesis" and Koch's book "The Quest For Consciousness". I believe if you look up Koch's website there are a series of videos of him discussing these issues posted there.

For a quick, fun to read introduction to the work of all these people, check out Susan Blackmore's book "Conversations on Consciousness". It is a series of interviews with leading thinkers on this topic including all the people I mentioned here.
 
  • #3
Free will is a tricky one. There is undoubtedly a powerful intuition about the existence of some kind of link between agency and self-awareness, it is extremely hard to articulate. Most people think that their movements and actions are a direct consequence of what they are consciously telling their body to do, but there is sufficient evidence to think that this is not the case, many experiments show that people often perform movements without actually being consciously aware of it.

Thinking about it, this should not come as a surprise. If you decide to turn a light switch off, you are not consciously thinking to yourself; i now have to stand up, i have to move my left leg, i have to move my right leg, i have to lift my hand, i have to point my finger, etc. Instead you are only consciously aware of the end goal of your action; the actual process to get there requires no (or very little) conscious thought.

This means that the vast majority of what we do is predetermined by non conscious input, meaning we are only actually aware of a very, very small amount of our actions. However, it appears that when it comes to major decisions, the brain does give us a free will choice, even if the subtleties of the actions we are performing are predetermined.

A pathological case that brings out the power of the intuition and complexities of the problems involved in articulating and explaining it is the neurological syndrome labelled 'anarchic hand'. Patients with this syndrome often find one of their hands performing complex, apparently goal driven movements they are unable to suppress (except by using their 'good' hand). Sometimes the anarchic hand interferes with the intentional actions performed by the other hand (it may unbutton a shirt the patient is trying to button up). Sometimes it performs actions apparently unrelated to any of the agents intentions, such as (in one notorious example) a movement resulting in picking up leftovers from somebodies plate in a resturant. On the face of it the patients are not incontrol of, or responsible for, the movements at all. Yet there does seem to be a sense in which the activities of the hand are skillfully controlled; they are not pure reflexes, but clearly devoted to a particular goal. This indicates a certain amount of unconscious control over our actions not determined by our own free will.My personal opinion is that we do have free will, but free will is a skill that you have to learn. It is very easy for people to get addicted to repeating certain actions, as every time you repeat an action the neural connection in your brain is enforced, making the experience require less thought, which makes that particular action the most desirable choice over others. This is often what happens to people when they have a mid-life-crisis. They often appear quite satisfied with their life before the breakdown happens, as they have re-enforced their particular views about the world many times in their head making those views the easiest to follow. But, despite this, they get tired of doing the same things as soon as they start to become consciously aware that their life is boring or repetitive, this is what causes them to change their opinions of the world and start new neural connections that did not exist before. People who have had a nervous breakdown at some point in their life often end up far happier people then those who stick to their old ideas. So we all have free will to a certain extent, but it is up to us as individuals to use it to its maximum potential.
 
  • #4
If you brake down the actions performed by every human being, it all converges to one simple decision everyone makes, no matter how complex. That is, "What's in it for me?"

That stems from how carefully evolution crafted humans, and essentially all living creatures in order to obtain a resource. You may think you have a free will, but you will always take an option which will benefit you more, whether now, or in the long run. An employee will never ask the Boss to lower the pay raise.

"If I take option A I will get more chickens to eat, or If I take B I will get a boat from which I can catch large amount of fish."
 
  • #5
-RA- said:
My personal opinion is that we do have free will, but free will is a skill that you have to learn. It is very easy for people to get addicted to repeating certain actions, as every time you repeat an action the neural connection in your brain is enforced, making the experience require less thought, which makes that particular action the most desirable choice over others.
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So we all have free will to a certain extent, but it is up to us as individuals to use it to its maximum potential.

Eshi said:
I'm only a high school student, but having recently studied the nervous system I would have to say that there is free will, if free will is defined as the ability for the brain to analyze senses and make create different options, in some cases each with a probability of living, for example if u are on the edge of a cliff, and you look down, ur eyes perceive the depth and height at which you are and this information is transmitted to ur CNS(i'm pretty sure that this isn't an automated response) and you have the choice of going closer, which increases ur probability of falling(which is going to equal death in this hypothetical situation) and backing off which will increase ur chances of survival. So now u make the choice of stepping back, if u did the opposite you are taking a risk factor.
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and that is what free-will really is, the ability to take risks and adapt

I'm wondering if the definition of free will isn't what you guys think it is, or maybe I'm the one who doesn't know. I just now read the intro to the wiki article, and I think it has promise. Maybe you guys should check it out to get a good foundation for what free will actually is: http://en.wikipedia.org/wiki/Free_will

As for the other part of the title, conscious thought most certainly does exist. You're experiencing it right now (as you read this) so there shouldn't be much question there.
 
  • #6
ganstaman said:
I'm wondering if the definition of free will isn't what you guys think it is, or maybe I'm the one who doesn't know. I just now read the intro to the wiki article, and I think it has promise. Maybe you guys should check it out to get a good foundation for what free will actually is: http://en.wikipedia.org/wiki/Free_will

As for the other part of the title, conscious thought most certainly does exist. You're experiencing it right now (as you read this) so there shouldn't be much question there.

This was originally in Biology, i was replying in context of free will in terms of biology.

In a philosophical context, i just think that the Deterministic view is caused by scientists taking laws of physics too seriously and applying them to human behaviour. The number one problem in physics is that it completely leaves the observer out. You can say "The particle splits in half and annihilates due to quantum mechanics, and I know that because I am there and i see it", but you can't analyse the second part of that sentence by applying quantum mechanics to it because it breaks down. Physics keeps the observer outside of the system they are describing, so claiming that our lives are predetermined by these laws, when infact they have to leave the observer out of them to work in the fist place, is taking physics laws too literally.
 
  • #7
-RA- said:
This was originally in Biology, i was replying in context of free will in terms of biology.

It looked to me that you were defining and talking about awareness of thought. Is that supposed to be the same thing as free will? In other words, can't one be aware of one's thoughts without having free will? I don't see why the concept of free will should change just because we want to discuss biology.

-RA- said:
In a philosophical context, i just think that the Deterministic view is caused by scientists taking laws of physics too seriously and applying them to human behaviour. The number one problem in physics is that it completely leaves the observer out. You can say "The particle splits in half and annihilates due to quantum mechanics, and I know that because I am there and i see it", but you can't analyse the second part of that sentence by applying quantum mechanics to it because it breaks down. Physics keeps the observer outside of the system they are describing, so claiming that our lives are predetermined by these laws, when infact they have to leave the observer out of them to work in the fist place, is taking physics laws too literally.

This just feels wrong. How can you take the laws of physics too literally? Seriously, what does that even mean? If they are right, then they are literally and actually right, and they are applicable wherever they have been shown to be right. Are you saying that the laws of physics don't apply to humans? Is chemistry different in our heads than in test tubes, does electricity flow differently?

Also, how does QM leave out the observer? Isn't it true that observing a situation affects in in very well known ways, so that QM actually does take into account observers?

Finally, even if I did concede the notion that physics leaves out observers, why would that matter? Why would that make physics applicable to everything in the universe but our brains? You can't just claim that I'm taking experiementally established theories too seriously because it affects the very thring we're discussing.
 
  • #8
Ok, I'm seeing how free will and conscious thought are separate matters. What I was really looking for is how conscious thought happens, biologically. And how this could lead to free-will
 
  • #9
Eshi said:
Ok, I'm seeing how free will and conscious thought are separate matters. What I was really looking for is how conscious thought happens, biologically. And how this could lead to free-will

Consciousness is a process created by an interaction of neurons.
Freewill is the ability to turn intention into action.
 
  • #10
ganstaman said:
It looked to me that you were defining and talking about awareness of thought. Is that supposed to be the same thing as free will? In other words, can't one be aware of one's thoughts without having free will? I don't see why the concept of free will should change just because we want to discuss biology.

That is why we have physics to explain one aspect, and biology the other. They are both valid ways of looking at the brain, and complementary to each other, but both are unique interpretations.

I was pointing out that from a biological perspective by our very nature humans create neural connections every time we perform conscious thought. Over time as these actions are repeated the connections become enforced, and the person ends up reliving the same neural connections repeatedly, as they are the strongest connections and the easiest connections to adhere to. People who stay stuck in their old ideas, reliving old neural connections over and over, by definition have less free will, as they are not putting any new conscious thought into their actions, they are simply following past neural instructions in their brain. Humans are predisposed to fall into repetitive habits, and the more the habits are done, the less conscious thought is required to perform them. This leads people to not think of new ideas and new concepts, instead they will just follow what they already know, which leads to a decrease in their free will as less conscious thought is being used to actually change their decisions.

Agents can not exercise control over their actions and decisions unless they are conciously aware of them in the first place to make the change.
This just feels wrong. How can you take the laws of physics too literally? Seriously, what does that even mean? If they are right, then they are literally and actually right, and they are applicable wherever they have been shown to be right. Are you saying that the laws of physics don't apply to humans?

No, they obviously apply in the context that all the particles we are made of obey the laws of physics, as do all the other physical elements of our being, and everything else in the physical universe. Can physics explain consciousness? or the mind? our emotions? the difference between good and bad? no. The problem here is that biology (or any other science) can not explain the nature of these things any more than physics can.

Is chemistry different in our heads than in test tubes, does electricity flow differently?

Thats quite clearly ridiculous

Also, how does QM leave out the observer? Isn't it true that observing a situation affects in in very well known ways, so that QM actually does take into account observers?

Quantum theory takes into account the effects that the observers equiptment makes on particles when they are measured. As far as i know there is no part of quantum theory that includes human actions in it. A lot of the "new age" movement have tried desparately hard to connect quantum physics to consciousness, but there has never been any hard science to back this assertion up. QT is a physics theory, and by its nature physics does not take into account human effects on the world, although it describes the world outside of us with tremendous accuracy, when human effects on the world are taken into account there are all sorts of problems that arrise. We don't know as humans how to hook ourselves up with the universe. Our system is brilliant at describing what goes on in the physical world, but when it comes to the effect that our minds and decisions have on the world, physics remains completely nonplussed.

Finally, even if I did concede the notion that physics leaves out observers, why would that matter? Why would that make physics applicable to everything in the universe but our brains? You can't just claim that I'm taking experiementally established theories too seriously because it affects the very thring we're discussing.

Of course physics is applicable to our brains, however the human mind and consciousness do not exist in any physical form for physicists to detect and measure. That is the main reason why so far they have been left completely out of science. If you know of any experiments that explain consciousness and the mind in terms of physics, I would very much like to see them.
 
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  • #11
-RA- said:
That is why we have physics to explain one aspect, and biology the other. They are both valid ways of looking at the brain, and complementary to each other, but both are unique interpretations.

Would I be correct in saying that the physics explains the details of what's going on in our brains at the particle level, and if you take a step back and put it all together you have chemistry to explain what's going on, and if you take another step back and put all the chemistry together you have biology to explain what's going on?

-RA- said:
I was pointing out that from a biological perspective by our very nature humans create neural connections every time we perform conscious thought. Over time as these actions are repeated the connections become enforced, and the person ends up reliving the same neural connections repeatedly, as they are the strongest connections and the easiest connections to adhere to. People who stay stuck in their old ideas, reliving old neural connections over and over, by definition have less free will, as they are not putting any new conscious thought into their actions, they are simply following past neural instructions in their brain. Humans are predisposed to fall into repetitive habits, and the more the habits are done, the less conscious thought is required to perform them. This leads people to not think of new ideas and new concepts, instead they will just follow what they already know, which leads to a decrease in their free will as less conscious thought is being used to actually change their decisions.

Agents can not exercise control over their actions and decisions unless they are conciously aware of them in the first place to make the change.

I added some bold in there. What definition are you talking about? I think we need a clear answer finally since I've been questioning your definition all along: what is your definition for free will? I'd actually be amazed if you could come up with any reasonably accepted definition that stays consistent with your above paragraph.

-RA- said:
No, they obviously apply in the context that all the particles we are made of obey the laws of physics, as do all the other physical elements of our being, and everything else in the physical universe. Can physics explain consciousness? or the mind? our emotions? the difference between good and bad? no. The problem here is that biology (or any other science) can not explain the nature of these things any more than physics can.

Really? Isn't the whole idea of the "we don't have free will" argument that consciousness and the mind are just chemical and electrical reactions happening in our brains, which follow the laws of chemistry and physics? Is this really a bad explanation?

-RA- said:
Thats quite clearly ridiculous

This was in response to me asking if the chemistry in our brains was different than in test tubes. If it's so ridiculous, then answer the question. If it's not different, then why would you suppose that the simple laws of chemistry affect the test tube while our brains are affected by some mysterious free will?

-RA- said:
Quantum theory takes into account the effects that the observers equiptment makes on particles when they are measured. As far as i know there is no part of quantum theory that includes human actions in it. A lot of the "new age" movement have tried desparately hard to connect quantum physics to consciousness, but there has never been any hard science to back this assertion up. QT is a physics theory, and by its nature physics does not take into account human effects on the world, although it describes the world outside of us with tremendous accuracy, when human effects on the world are taken into account there are all sorts of problems that arrise. We don't know as humans how to hook ourselves up with the universe. Our system is brilliant at describing what goes on in the physical world, but when it comes to the effect that our minds and decisions have on the world, physics remains completely nonplussed.

You are coming dangerously close to using circular reasoning. If we have free will that operates outside the laws of physics, then QM wouldn't be able to take into account the free will in the human mind since it is only a natural law. If we do not have free will, then the human mind is nothing more than any other observer and therefore QM already takes this all into account perfectly well.

The only reason you'd need to think that we need to take into account the human mind separately is if you already think we have free will, so this can not be used as a reason that free will exists.

-RA- said:
Of course physics is applicable to our brains, however the human mind and consciousness do not exist in any physical form for physicists to detect and measure. That is the main reason why so far they have been left completely out of science. If you know of any experiments that explain consciousness and the mind in terms of physics, I would very much like to see them.

Don't confuse complexity with unexplainableness (yes, I possibly made that word up). The human brain is too complex for us to fully analyze and understand, but that doesn't mean that we don't think we know the basics of what's going on.

If I roll a pair of dice in craps, can you use physics to tell me how they're going to land? Well, yes, but the problem is actually very complex, taking into account the velocity and spin with which I throw them, air friction, the surface and walls of the table, bumping into each other, etc. We know that the laws of physics completely determine how the end up, but we simply don't do this problem because it's too hard. Instead, we just pretend that it's random and continue on happily.
 
  • #12
ganstaman said:
Would I be correct in saying that the physics explains the details of what's going on in our brains at the particle level, and if you take a step back and put it all together you have chemistry to explain what's going on, and if you take another step back and put all the chemistry together you have biology to explain what's going on?

pretty much, that a nice way of putting it. All levels of reality are true to themselves, but completely different laws applty to them in their own right. At our everyday level Newtons laws of motion apply, go down a few scales then electromagnetic forces dominate, at the smallest level atoms and quantum theory dominate. From a biology perspective you have cells, then proteins and peptides, then DNA, then the bodys electric system and finally atoms again. I was trying to look at it from the body electric system level, and not the deterministic physics level of atoms, as that level is not necessarily applicable to other levels above it and so can be treated separately.
ganstaman said:
What definition are you talking about? I think we need a clear answer finally since I've been questioning your definition all along: what is your definition for free will?

I would say that the last sentence i wrote quite accurately describes free will, which is basically whether people exercise control over their actions and decisions, or whether your actions are predetermined by scientific laws.

"Agents can not exercise control over their actions and decisions unless they are conciously aware of them in the first place to make the change."

could you be a bit more specific about what you find wrong with this statement?
ganstaman said:
Really? Isn't the whole idea of the "we don't have free will" argument that consciousness and the mind are just chemical and electrical reactions happening in our brains, which follow the laws of chemistry and physics? Is this really a bad explanation?

Its a perfectly valid explanation for the brain, as that is what we observe, but when it comes to testing that hypothesis of consciousness, there is nothing there to test. That is the main problem about studying the mind. Thoughts are not made of anything, and so can not be tested. We don't even really know for sure if the brain causes concsiousness, or if it is the consciousness itself that causes the brain. The testable effects would be analogous, as one side of the equation is still completely unknown, no matter how much we study the brain side.
ganstaman said:
If it's not different, then why would you suppose that the simple laws of chemistry affect the test tube while our brains are affected by some mysterious free will?

Something such as consciousness experience, that is not explained by any science, that effects our entire lives in every shape and form, and pervades our very bodies, i would definitely describe that as mysterious. Consiousness, mind, and thoughts, are the next frontier for science, but so far they have been extremely hard to interpret in any scientific way.
ganstaman said:
If we have free will that operates outside the laws of physics, then QM wouldn't be able to take into account the free will in the human mind since it is only a natural law. If we do not have free will, then the human mind is nothing more than any other observer and therefore QM already takes this all into account perfectly well.

I think this is a popular misconception that the 'observer' in quantum mechanics refers to us as biological entities, when it really refers to how the measurements we make effect particles. Our brains obey the laws of quantum physics, but the mind may not as it does not exist in any physical sense in our universe.
ganstaman said:
The only reason you'd need to think that we need to take into account the human mind separately is if you already think we have free will, so this can not be used as a reason that free will exists.

The human mind can be used as a reason that free will exists, as that is a possibility as to how free will would work, as the mind may not be subject to standard laws of physics. We just don't really know yet, no one has 'found' the mind to measure it and test if it obeys the laws of physics.
ganstaman said:
Don't confuse complexity with unexplainableness (yes, I possibly made that word up). The human brain is too complex for us to fully analyze and understand, but that doesn't mean that we don't think we know the basics of what's going on.

you should phone up the oxford dictionary and ask them the add 'unexplainableness' - what a word - takes about ten seconds to work out what it means!

Quite, we think we know the basics of what is going on, as you said, but we also used to think man would never fly, no one would ever go to space, and the world was flat.
ganstaman said:
If I roll a pair of dice in craps, can you use physics to tell me how they're going to land? Well, yes, but the problem is actually very complex, taking into account the velocity and spin with which I throw them, air friction, the surface and walls of the table, bumping into each other, etc. We know that the laws of physics completely determine how they end up, but we simply don't do this problem because it's too hard. Instead, we just pretend that it's random and continue on happily.

valid point that physics will beable to predict very, very complex systems in the future. However the laws of physics would not beable to completely determine how the dice will end up if a person came in and kicked one of the dice. That is what physics can not explain, and i don't think will. Physics is for the physical world and the brain, not for the virtual mind and consciosness.
 
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  • #13
-RA- said:
Physics is for the physical world and the brain, not for the virtual mind and consciosness.

I like this statement, really ties in with what is going on in the computer world, with Artificial Intelligence being created for a number of things. Which brings up another question, do you think that robots have 'conscious thought', does their programming compare at all to the neuron pathways in our own bodies?.

For example Kismet, who can talk and show basic emotions.
http://www.ai.mit.edu/projects/humanoid-robotics-group/kismet/

Theres a nice section called: "broader questions"
 
  • #14
-RA- said:
I would say that the last sentence i wrote quite accurately describes free will, which is basically whether people exercise control over their actions and decisions, or whether your actions are predetermined by scientific laws.

"Agents can not exercise control over their actions and decisions unless they are conciously aware of them in the first place to make the change."

could you be a bit more specific about what you find wrong with this statement?

Agents can be consciously aware of their actions and decisions and exercise control over them without having free will. The laws of science can predetermine how one will change and react to their actions and decisions, therefore this isn't enough to say that one has free will.

This has been my main point --conscious awareness fits on both sides of the table so it can't help the argument for or against free will. If you want to use it in your definition of free will, you'd have to state that it's independent of the laws of science and operating outside of their scope. I haven't seen you say this and nothing you have said seemed to require this, which is why I didn't feel you were presenting the best possible defense for free will.

-RA- said:
Its a perfectly valid explanation for the brain, as that is what we observe, but when it comes to testing that hypothesis of consciousness, there is nothing there to test. That is the main problem about studying the mind. Thoughts are not made of anything, and so can not be tested. We don't even really know for sure if the brain causes concsiousness, or if it is the consciousness itself that causes the brain. The testable effects would be analogous, as one side of the equation is still completely unknown, no matter how much we study the brain side.

Oh well, this is why this discussion ends up in the philosophy section, I guess. We have to work on this experimentation, though. Do you know if anyone's even attempted anything yet related to this?

-RA- said:
I think this is a popular misconception that the 'observer' in quantum mechanics refers to us as biological entities, when it really refers to how the measurements we make effect particles. Our brains obey the laws of quantum physics, but the mind may not as it does not exist in any physical sense in our universe.

I'm not making that misconception. If free will exists, then we both agree that QM doesn't know how to deal with the mind. If it doesn't exist, then we both agree that QM already deals with it just fine (just like any other observer). Are those two sentences true?

Assuming they are, then saying that QM doesn't take into account the mind will of course lead you down to the conclusion that free will exists since it starts with that premise to begin with.

-RA- said:
valid point that physics will be able to predict very, very complex systems in the future. However the laws of physics would not be able to completely determine how the dice will end up if a person came in and kicked one of the dice. That is what physics can not explain, and i don't think will. Physics is for the physical world and the brain, not for the virtual mind and consciosness.

No, physics can right now predict very very complex systems. We simply can't work out all the math and stuff. Physics can do it, physicists can not. As long as we have info on the foot or shoe and the force vectors, why can't physics tell us how the dice will land still?

That last sentence, by the way, presupposes free will. Therefore, it is trivial that it concludes the existence of free will.
 
  • #15
freewill=freewhim

the nonexistence of freewill does not mean that 'will' does not exist.
 
  • #16
We don't even really know for sure if the brain causes concsiousness, or if it is the consciousness itself that causes the brain.

Prima facia, this statement sounds absurd.

Correct me if I am wrong, but, aren't we aware now that the current state of the 'mind' or 'consciousness' is actually a result of the current configuration of the 'particles' in the brain? That is, the physical controls the 'abstract' you speak of - thus, let's say in the future if computers are strong enough, we may be able to predict human behavior as well as dice on the table.

valid point that physics will beable to predict very, very complex systems in the future. However the laws of physics would not beable to completely determine how the dice will end up if a person came in and kicked one of the dice. That is what physics can not explain, and i don't think will.
What? You just said might be able to predict the rolling of dice, but not the kicking of dice? I don't understand how you can assert something like this... A foot is just a much as a physical body, as say, the other dice on the table that other dice may collide with.
 
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  • #17
Brin said:
Prima facia, this statement sounds absurd.

I know, that why I said it. It does well to show that you can claim pretty much anything about something that has no physical existence or detectable properties. It could be true, we just don't know, that's where the mytery of the mind - body relationship comes in.

Brin said:
You just said might be able to predict the rolling of dice, but not the kicking of dice? I don't understand how you can assert something like this... A foot is just a much as a physical body, as say, the other dice on the table that other dice may collide with.

I think you fail to understand my example. If someone came in and kicked the dice out of the place it was usually rolled to in the room, and they did this when it was mid way through its roll, the computer would not successfuly predict what the correct end position of the dice is anymore, as the effects the person has on the dice are not included in the laws of physics it is using.

Maybe i should think of a better one. If a computer is used to calculate the number of molecules passing a point in a stream, it can do that fine. The model could then be used to predict future molecule numbers very accurately. However, if a person comes along and blocks half of the river, it will not accurately predict it anymore, as they have made an unpredictable change to the system. The possibilites of people disrupting the experiment are endless. If there is no conscious input on the system to change anything, then it should work fine. I very much doubt computers are ever going to be powerful enough to handle that many possibilities.

Brin said:
Correct me if I am wrong, but, aren't we aware now that the current state of the 'mind' or 'consciousness' is actually a result of the current configuration of the 'particles' in the brain? That is, the physical controls the 'abstract' you speak of - thus, let's say in the future if computers are strong enough, we may be able to predict human behavior as well as dice on the table.

Particles have nothing to do with the mind, as far as i know. Particles have everything to do with everything physical (ie, your brain, cells, clothes, etc). That seems a typical reductionist perspective of the world. You cannot explain a system completely by only focussing on the product of its smallest components, you sometimes have to consider the bigger picture. You could double the amount of ions in my body right now by charging me up with a van de graph generator, and i would not start to think differently. Particles and physics can not explain human behaviour, they are on a completely different level of truth than us.

This needs a longer explanation really, i will post it when i have more time.

If the mind can be explained with particles; at what location do these particles give the information to the mind? and how do they give it this information?
 
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  • #18
Okay, I understand what you mean by the predicting the kick - you mean that although we can predict the physical course of thoughtless 'things' we can't calculate the 'human effect' that will affect its place. Hell, we can't even predict whether a human WILL intervene in the course.

Particles have nothing to do with the mind, as far as i know.

I was certain people are aware that our states are just based off the physical condition of our brain. For example, if we damage parts of the brain people's minds are obviously altered, a smart person could be brought to 'retardation.' Also, note the damage to the frontal lobe where emotions could be removed and rational thought disappears. Unless - you mean something different?

Great conversation by the way, thanks.
 
  • #19
A persons decision making would be changed, and their reasoning would change, take sociopaths, their brains are only slightly different and it is clear that they feel less emotion, and their reasoning follows a different path than a normal human, but conscience doesn't disappear because of a change in the brain, i think the question really is: at what intelligence level does conscienceness arise
 
  • #20
-RA- said:
Particles have nothing to do with the mind, as far as i know.

This is the entire debate! You can't simply claim that your side is correct if we are to debate it. Those who support free will think your statement is correct, those who don't don't. Without evidence, I don't know how such a claim can just be made an expected to be believed.
 
  • #21
at what intelligence level does conscienceness arise
I think that they are both inseperable and arise simultaneously even in the simpliest forms of life. IMO even bacteria is in some way self-conscious and possesses very primitive intelligence.
 
  • #22
Originally Posted by -RA- View Post

Particles have nothing to do with the mind, as far as i know.

As far I know, I don't know. But somehow the particles on up seem to be the centre of my mind. Unless we accept a bodyless mind, then the particles must in some way be part of the mind.
 
  • #23
The way I see the mind is a kind of unfathomably complex cavern, and that free will at the level of thought simply doesn't exist. There may be uncertainty at he quantum level which leads to inherent unpredictability, but I believe that if you knew enough variables about a brain at any given time, you could perfectly predict how a person would react (both physically and mentally) to any set of external and internal stimuli. I fail to understand how the human brain is any different than throwing a ball at a set of stacked cans. Knwoing the exact arrangement of the cans, each of their mechanical properties, surrounding temperature, humidity, relative altitude, longitude, latitude, location of Earth relative to the sun, the ball's angular and linear momentum, shape, materials, etc, etc, would allow us to, at least in limit of our perceived reality, perfectly predict the final arrangement after all is said and done. Sure, on a quantum level we might not be able to perfectly predict this, but this event will occur in the exact same way to our brain an infinite number of times simply because the difference would be too minute. I just see the brain as a far more complicated version of this. It seems a bit pretentious that just because the brain is many orders more complex than other types of physical systems that it operates on some different principle altogether.
 
  • #24
Let's put it this way ... when great composers composed brand new symphonies/music masterpieces...things that nobody had ever heard before, and that nobody could even ever imagine to make... then obviously free will was involved here. Conscious thought and free will obviously played a role in these 'constructions'. Those people didn't have to make them if they didn't want to. That's also part of free will. You just choose to do whatever you want. Free will can also allow you to choose something, then change your mind, then choose again, then change your mind again, then etc ... that's what free will is all about. You're the boss.
 
  • #25
Kenny_L said:
Let's put it this way ... when great composers composed brand new symphonies...things that nobody had ever heard before... then obviously free will is involved here. Conscious thought and free will obviously played a role in these 'constructions'.

I don't see quite how you get from A to B. It is indeed a mystery how music and other arts would have come out of a system of chemical/physical reaction, but the idea of freewill leaves a lot unanswered. Consciousness we've defined as a set of phenomena, we don't really understand how it works or where it comes from yet.

Freewill doesn't lead to a productive (predictive!) discussion. If I ask you to explain consciousness and you give me The Cartesian Theater ("There's a little man in your had controlling your body") I still want to know what's going on inside that little man's head... another Cartesian Theater? You see how this isn't productive? Freewill is essentially a Cartesian Theater argument.
 
  • #26
Warr said:
The way I see the mind is a kind of unfathomably complex cavern, and that free will at the level of thought simply doesn't exist. There may be uncertainty at he quantum level which leads to inherent unpredictability, but I believe that if you knew enough variables about a brain at any given time, you could perfectly predict how a person would react (both physically and mentally) to any set of external and internal stimuli. I fail to understand how the human brain is any different than throwing a ball at a set of stacked cans. Knwoing the exact arrangement of the cans, each of their mechanical properties, surrounding temperature, humidity, relative altitude, longitude, latitude, location of Earth relative to the sun, the ball's angular and linear momentum, shape, materials, etc, etc, would allow us to, at least in limit of our perceived reality, perfectly predict the final arrangement after all is said and done. Sure, on a quantum level we might not be able to perfectly predict this, but this event will occur in the exact same way to our brain an infinite number of times simply because the difference would be too minute. I just see the brain as a far more complicated version of this. It seems a bit pretentious that just because the brain is many orders more complex than other types of physical systems that it operates on some different principle altogether.

Very well put warr.

I think many people fail to realize the complexity of the human brain, here are some basic estimates:
the brain contains approximately 100,000,000,000.0 (billion) individual neurons,
each neuron with multiple synaptic connections numbering approximately 10^15 (one QUADRILLION)
operating at about 10 impulses/second,
that gives us about: 10,000,000,000,000,000.0 synaptic operations per second!

10 QUADRILLION OPERATIONS PER SECOND!

Really thinking about the scale of those numbers brings new light to the feats that humans are capable of...
 
  • #27
My philosophy is simple: If all your potential actions and actions are predictable, you have no free will.
Based on this, it's possible to predict all your events, therefor there's no free will, sorry.

PS: Sorry for my vast amount of posts the last 30min.
 
  • #28
robertm said:
10 QUADRILLION OPERATIONS PER SECOND!
Really thinking about the scale of those numbers brings new light to the feats that humans are capable of...

yah... size is all relative. I mean, on a much larger scale, than 10 quadrillion, this number could be relatively small actually. And somebody mentioned something about predicting brain function and predicting what somebody could do. Well, at the moment, there's no way to tell whether you can do that or not, because we don't fully understand the brain, and we don't fully understand everything ... including what happens at quantum level and any other associated/related levels. If we don't know all the degrees of freedom/dimensions or whatever, then there's no telling whether we can predict everything a person could do ... unless you really do know enough about activities in the brain/cells/ etc at whatever levels.
 
  • #29
robertm said:
Really thinking about the scale of those numbers brings new light to the feats that humans are capable of...

I wouldn't attribute it to humans so much as the cells that make them up.
 
  • #30
What would you not contribute to humans? I normally include the cells that make us up when I say the word human... We are our biology so you can not really attribute anything we do without simultaneously attributing it to our cells.
 
  • #31
Pythagorean said:
I don't see quite how you get from A to B.

Basically, the composer had a freedom of choice to create the symphony, and arrange it in the way that he/she saw fit. We're just aware that we have a freedom of choice to choose what we want that's presented to us (or not even when not presented to us yet).

Being aware that we have freedom of choice to do something is great. Now, for those people that reckon that people don't really have free-will...well, they're actually in no position to say that, because they don't even understand their own brain/body functions and thought processes at every 'level'...just in the same way that they don't understand what are the origins of the universe...such as how 'energy' got here (or there or anywhere)...or if they believe that energy was always 'there'...then 'how'. There are many things in the universe that we don't know about. But having freedom of choice is one thing that we can be aware of. Well, maybe not everybody is aware of it, because some people might be 'programmed' differently and don't appear to be as flexible and changeable and self-aware as other people.
 
  • #32
Kenny_L said:
Basically, the composer had a freedom of choice to create the symphony, and arrange it in the way that he/she saw fit. We're just aware that we have a freedom of choice to choose what we want that's presented to us (or not even when not presented to us yet).

Being aware that we have freedom of choice to do something is great. Now, for those people that reckon that people don't really have free-will...well, they're actually in no position to say that, because they don't even understand their own brain/body functions and thought processes at every 'level'...just in the same way that they don't understand what are the origins of the universe...such as how 'energy' got here (or there or anywhere)...or if they believe that energy was always 'there'...then 'how'. There are many things in the universe that we don't know about. But having freedom of choice is one thing that we can be aware of. Well, maybe not everybody is aware of it, because some people might be 'programmed' differently and don't appear to be as flexible and changeable and self-aware as other people.
(emphasis added)
Why isn't the this argument applicable to your own opinion?

There's no way that you can prove (yet) whether what you experience (consciousness) is a product of reactions or not. It may "feel" one way or another, but that's not very informative.

There's no reason that composing music must necissarily prove freewill, either. I used to write a lot of music, and I identified with myself as a creative person but when the music feels right, it just is. There's no reason it couldn't have been an organizational practice my brain needed to engage into order itself or perhaps to relieve stress.

It's completely possible that choice is an illusion.

Of course, it's my opinion that we do have limited freewill.
 
  • #33
Pythagorean said:
(emphasis added)
Why isn't the this argument applicable to your own opinion?

It's because I'm aware that I have free-will. And you're probably aware that you have free will too. But if somebody comes along as says to us 'we only have the illusion of free will', then it's our own freedom of choice to tell that person to take a hike (now that's free will). I don't mean you...I just mean those that mock our intelligence by telling us that what we do/choose is actually in the control of something 'else'. I mean, if they believe that it's not themselves in control of 'the wheel' in their own body, then they have a problem of some sort.
 
  • #34
Kenny_L said:
It's because I'm aware that I have free-will. And you're probably aware that you have free will too. But if somebody comes along as says to us 'we only have the illusion of free will', then it's our own freedom of choice to tell that person to take a hike (now that's free will). I don't mean you...I just mean those that mock our intelligence by telling us that what we do/choose is actually in the control of something 'else'. I mean, if they believe that it's not themselves in control of 'the wheel' in their own body, then they probably have 'problems'.

You say that telling someone to 'take a hike' is an example of free will, however the very process of discerning outcomes of situations that that person tried to explain to you, can be applied to discover what your exact response would be. All you need is enough information.

IMO, however, these kinds of exact predictions are not possible. Not because something like free will really does exist, but because the information that you need to base a prediction of a complex system (such as an organism) changes at the speed of light constantly through time. So inherently, there is no possible way to collect the needed information in time (or at all really) to make a prediction. So even though I believe that the macro world is entirely casual and there is no magical 'fee will', because of the inherent nature of the universe I can never prove it through prediction.

I don't think anyone here is saying that they are not in control of themeselvs, or that there is 'something else' controling them, it is simply a fact that we are a manifestation of the universe and hence are subject to its nature.

There is no difference between you and a star. Different forms of the same thing.

Would you say that a star has free will? Or an atom? So why is it that certain groups of atoms would have 'free will' and not others?
 
  • #35
Kenny_L said:
But having freedom of choice is one thing that we can be aware of. Well, maybe not everybody is aware of it, because some people might be 'programmed' differently and don't appear to be as flexible and changeable and self-aware as other people.
Are you really aware of your "freedom of choice", or could it simply be the case that you are NOT aware of precisely how you decide things (ie you are not aware of the precise mechanism in your brain which leads to your choices) - and you simply interpret this "internal transparency" as "freedom of choice"?

Kenny_L said:
those that mock our intelligence by telling us that what we do/choose is actually in the control of something 'else'
A common misunderstanding. Absence of free will (of the metaphysical libertarian variety) does not imply that what we do/choose is "in the control of something else". It just means that the deterministic processes which result in our choices and decisions (which control us) are an INTEGRAL PART of us. I determine my future, even in a deterministic world, because my actions are determined and controlled by me. But it does not follow from this that I possesses (metaphysical libertarian) free will.
 

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