What Price for Genuine Free Will?

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In summary, the conversation discusses the concept of free will and whether it truly exists. The speaker, who has a background in physics, shares their struggles with reconciling their belief in free will with their understanding of quantum mechanics. They also mention a new theory on visual perception that has allowed them to believe in free will without conflicting with their understanding of physics.
  • #36
Philocrat said:
...{Genuine Free Will} GFW, if it is truly genuine, must demonstrate (without any shaky foundation) how the mind animates the body of any size and scale of referece in spacetime unrestricted or unobstructed by anything else.[/B]
Sorry I have taken so long to get back to you. Most of your post I did not understand and /or failed to see what it hadto do with GFW, so reproducing only the last part above, which clearly does relate to GFW.

You seem to have the mind very separate from the body as Descarte did. All "idealists" who (almost by definition) hold this view have trouble breaking down the physicalist's objection that nothing outside the realm of physics can enter into that realm and move even a single atom. Physicists think that to move an atom, a "force" must be applied to it. Now many non physicists will speak of psychic "forces and energy." These, from the physicist POV, are just empty terms. Physicists think there are only four forces and all four have the "action/reaction" nature. That is if "A" applies a force to "B" then "B" applies an equal and oppositely directed force to "A." As a consequence of this, if the mind could applied a force to move even a single atom, then on that non physical (massless) mind a force would also be applied. But then the mind, by hypothesis being massless non matter, would have infinite acceleration and the whole concept of it moving even a single atom is rejected as nonsense.

This admittedly leaves the physicist who wants to believe he has GFW in an awarkward position. If classical physics (pre quantum era) were true, then the state of the universe at any time (T1) determins it at all future times (T2, T3, etc.) and clearly if everything is predetermined, there is no GFW.

Quantum Physics recognize that the concept of a "definite state of the universe" at time = T1 is nonsense. QM permits unobserved components of the universe to be in "mixed states." The rules for QM calculations permit one to predict exactly what is the probability for realizing each of the possible pure state when an observation is made (I.e. when the mixed state is forced into a single state.) but this is little help with the GFW problem. At best, QM only permits a random selection of what is the state of the universe at T2. There is still zero opportunity for anyone to decide or chose anything.

This does not imply that we can not have a impression that we are deciding things. The future is no longer determined by classical physics, but indeterminant. We can for example believe that we chose to raise our right rather than left hand, but it is only an illusion of choice. The real decision was made by QM observations, probably a set of them associated with the Browian motion of neurotransmitters in the synaptic gaps and/or the attachment or not of these neurotransmitters to specific "receptor sites" on the post synaptic cell wall. (Actually the release of previously attached neurotransmitters is equally important in determining when that post synaptic cell fires as is the internal chemistry of the cell - for brief periods after its last firing, this chemistry is dominant - it can't fire again until the anti osmotic "sodium pumps" reestablish the interior of the axion potential to approximately -70mV by pumping the recent inflow of Na+ ions back outside.)

All this is troubled me for years because I wanted a non illusionary GFW yet I knew too much physics and about how the the brain works to see any solution that would permit GFW to be consistent with physics and biology. Finally I stopped thinking about it and added this mystery to the set of others (such as why is there something instad of nothing etc.) that were beyond human understanding (Collin McGinn's well defended view.) Then, I became interested in understanding how vision works:

How do we experience a 3D world from the 2D image on our retina? Why is this experience equally sharp and clear over most of the forward hemisphere, when the retinal data base is high resolution over much less than 1% of that forward hemisphere - the part of image illuminating the retina? And many other problems / obvious errors in the standard view of cognitive scientists as to how visual percption works. (They hold that after the retinal information is separated into "features" such as texture, color, motion, size, shape, etc. which are processed in entirely separate regions of the brain, the 3D perception "emerge" following all this "neural computation" but none suggest how or where the separated nformation is unified.)

I found a solution to this problem, which explains all these visual mysteries and many other things, like why one group of humanoids dominated all others in a less that 20 thousand year, after essentially nothing happening for millions (The "Out of Africa" event) and many other things that one would not even suspect were related including the possibility that GFW can be consistent with physics. That is my solution has great "explainatory power."

I have not attached it for sometime, and this thread seems to need some help now, so I will attach it again. Warning - it is about four pages long and requires an open mind about your very nature. It gives three independant proofs that the standard view of cognitive scientists as to how vision works is simply wrong. - this plus the supporting evidence is what makes it four pages.
 

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  • #37
In earlier thread (On free will) Bolo said: "well, I like to separate everything into levels...level 1 is quantum mechanics, and level 2 is "our" level.
it all depends on if level 1 controls level 2, or vice versa.. see at level 1, it can either be random or not, it doesn't matter. It's what we experience at level 2, in our minds, that matter...at this level, i fully believe free will exists."
... { in relative long section here Bolo claimed humans were at level 2 a "closed system." to which g[x] said: "I beg to differ... Human beings are in no way closed systems." I agree with g[x] and for this reason have omitted everything about closed systems.} Bolo concluded with:...
"bottom line for me: you can't make subjective viewpoints based on a quantum level we know very little about. ... we need to stop thinking about it and see what's in front of us. people have been held responsible for their actions since the dawn of time, is this a coincidence? i think not. nature intended everyone to be responsible, and this is born into humans, we feel it and know it. we know it because we have thoughts and emotions, and we know it because we have all felt guilty when we have hurt someone. we took responsibility ourselves. now until i know more about the fundamental workings of the universe, I am going to go with the simple humanistic view of free will; we have it, we are responsible, this is all i know"

I want to comment on his concluding point(s):
I think societies that survive find practical ways to help themselves cope with the stresses of their environment (Social Darwinism?), not that "nature intended ..." The Eskimo son who helps his frail and aging father build his final igloo (without door) because the father can no longer travel with the group, does not feel guilty. He is doing his duty. Helping his society cope. We put people in prison etc. at least in the belief that it is a protection of society in their particular case and probably a deterrent to others who would disrupt smooth functioning of society.
I also want to note that Bolo's level 2 is to a large extent the statistical regularities of level 1.
For example, to take another complex case: The slope of the beach changes little with each wave breaking on it. Yet on the detailed level of each sand grain, it is entirely changed. The grains that were touching before the wave broke, are thousand of times their diameter apart after it breaks.
If we look at the gross level of human behavior we do not see the fine molecular details that are controlling it. If we think about what cause the beach to have the inclination it does or what causes a human to behave as he/she does, we understand that it is the net result of many details, not some high level "choice." We have the illusion of making a choice.
Our understanding of the probably consequences (Things society may do to us in its own survival interest, or things society has instilled in us before we were old enough to think that we call guilt when contradicted.) are also very effective in making our "choice." That is, the bag of chemicals we humans are is far from a closed system. Thus, I am not claiming, as some do, that we are just a bag of chemicals, following the laws of physics, but recognizing the our options are guided also by the wishes of our society. However it is true that via our memory etc, these "external factors" have to a large extent been incorporated into the bag of chemicals.

As a consequence of all this, for years I thought "free will" was an illusion. I now understand it can be genuine, if we cease to think of ourselfs as a physical body, which is ruled by the statistics of quantum mechanics. My new view, not only permits genuine free will but explains many other things that initially one would not suspect are even related - For example the explosion of one group of humanoids "Out of Africa" about 50K year BP and fact your visual perception is equally clear over the entire forward hemisphere and not just in the less than 1% which corresponds to the high resolution fovea are both explained by the same "paradigm shift" in understanding ourselfs. See attachment to post 1 or 36 for details of this new view of ourselves (Nothing to do with "souls" etc. - I am a Physicist.)
 
  • #38
Billy T

Can you please define what you mean by GFW? (I mean a rigorous definition).

I doubt that much progress can be made in understanding unless we agree definitions of the things we are trying to debate.

Cheers

MF
 
  • #39
moving finger said:
Billy T Can you please define what you mean by GFW? (I mean a rigorous definition). I doubt that much progress can be made in understanding unless we agree definitions of the things we are trying to debate.
Let me try to sneak by a tough question with a negative reply. If really unhappy, I will think about it and see if I can do better, but honestly I have just been using GFW to contrast with FW that many others have justified as existing with various arguments - none of which I buy into.

Thus, off the top of my head:
1) No type of FW exist if future is determined.
2) No type of FW exists if "granted" by some powerful "spirit" who can violate physical laws at his will to permit you a miracle, at least none I consider worth having.
3)The type of FW, which is the macroscopic statistical average (regardless of how regular this statistical average may be at the macro level) is only an illusion of FW - In fact you are still just a very complex biological machine, but not a deterministic one, thanks to quantum physics being true. Often because of the fact that the macro level the results of many QM "observations" which force mixed states into "pure states" have reasonably predictable averages, you are almost in the case (1) determinism.

As a side note on this point, I would not want to prevent society from throwing the more disruptive members in jail etc, just because the "poor bloke, really had no choice" given his education, the way society treated him, his incompetent public defenders, etc.

4) No form of FW exist directly in any assembly of matter, except the illusion of FW that is quite possible, due to QM and discussed in point 3.

5) Secondary GFW can exist in an assembly of matter (even computers much more advance than any man has yet conceived) if it is the "secondary result" of FW existing in a non-material informational system which has the ability to control some material objects. For example a physical body or a robotic arm etc.

6) Point 5 only permits GFW to be manifest in the physical world, does not imply it need ever actually exist.

7) Any choices that can still be made by any organization capable making decision not ruled out by considerations 1 thru 5 or 6 I would consider genuine free will, GFW.

Hope that helps - just some thoughts without spending much time on it. I invite your comment, efforts at making a better definition etc.
 
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  • #40
Billy T said:
Let me try to sneak by a tough question .
I'm glad you think it's tough, because I do too. However, I strongly believe it is fruitless to debate FW unless we firstly define exactly what we are talking about.

Billy T said:
1) No type of FW exist if future is determined.
I disagee that this necessarily follows. I think that depends on how one defines FW in the first place. That's why I'm saying we must define exactly what our terms mean before we can argue whether they exist or not.

Billy T said:
2) No type of FW exists if "granted" by some powerful "spirit" who can violate physical laws at his will to permit you a miracle, at least none I consider worth having.
Need to resolve (1) above before we can make any progress on (2)

Billy T said:
3)The type of FW, which is the macroscopic statistical average (regardless of how regular this statistical average may be at the macro level) is only an illusion of FW - In fact you are still just a very complex biological machine, but not a deterministic one, thanks to quantum physics being true. Often because of the fact that the macro level the results of many QM "observations" which force mixed states into "pure states" have reasonably predictable averages, you are almost in the case (1) determinism.
Whether a feeling of FW is an illusion of not cannot be addressed until we first answer (1)

Billy T said:
As a side note on this point, I would not want to prevent society from throwing the more disruptive members in jail etc, just because the "poor bloke, really had no choice" given his education, the way society treated him, his incompetent public defenders, etc.
What is a "choice"? This gets back to what exactly do we mean by FW?

Billy T said:
4) No form of FW exist directly in any assembly of matter, except the illusion of FW that is quite possible, due to QM and discussed in point 3.
Cannot resolve this until you define FW as in reply to (1) above.

Billy T said:
5) Secondary GFW can exist in an assembly of matter (even computers much more advance than any man has yet conceived) if it is the "secondary result" of FW existing in a non-material informational system which has the ability to control some material objects. For example a physical body or a robotic arm etc.
Oooops. Now we are onto GFW. We need two definitions now :)

Billy T said:
7) Any choices that can still be made by any organization capable making decision not ruled out by considerations 1 thru 5 or 6 I would consider genuine free will, GFW.
I'm not sure I understand your definition here (assuming this is intended to be a definition). Until we define FW how do we know what is or is not ruled out by 1 thru 5?

Billy T said:
Hope that helps - just some thoughts without spending much time on it. I invite your comment, efforts at making a better definition etc.
I see where you are coming from, but from a rational and logical point of view it takes us nowhere until we define exactly what we mean by FW and GFW.

I'm very interested in the subject BTW, having done a lot of thinking about it myself.

MF
 
  • #41
Billy T said:
3)The type of FW, which is the macroscopic statistical average (regardless of how regular this statistical average may be at the macro level) is only an illusion of FW - In fact you are still just a very complex biological machine, but not a deterministic one, thanks to quantum physics being true. Often because of the fact that the macro level the results of many QM "observations" which force mixed states into "pure states" have reasonably predictable averages, you are almost in the case (1) determinism.

OTOH, suppose that there is significant indeterminism in your macrsocopic
behaviour due to micro-level interminsim in your brain. The suspicion that this
is not genuine FW seems to be based "you" have no control over such events.
But there is no reason to suppose that such an event gets translated into
action without going through a lot of other neural processing, which surely
constitutes such control. If your actions were determined by random events outside your brain, you would have a case that they would not constitute
genuine FW -- but the n you would if they were determinined by deterministic events outside your brain. OTOH, if deterministic events
inside your brain lead to "your" actions (for all that they might not be your free actions), why shouldn't indeterministic events inside your brain be yours ?
 
  • #42
moving finger said:
I'm glad you think it's tough, because I do too. However, I strongly believe it is fruitless to debate FW unless we firstly define exactly what we are talking about...MF
Be my guest - feel "free" :smile: to put up your more positive definition. I was just trying to narrow the field by saying somethings FW and GFW are not.
 
  • #43
Tournesol said:
OTOH, suppose that there is significant indeterminism in your macrsocopic
behaviour due to micro-level interminsim in your brain. The suspicion that this
is not genuine FW seems to be based "you" have no control over such events.
But there is no reason to suppose that such an event gets translated into
action without going through a lot of other neural processing, which surely
constitutes such control. If your actions were determined by random events outside your brain, you would have a case that they would not constitute
genuine FW -- but the n you would if they were determinined by deterministic events outside your brain. OTOH, if deterministic events
inside your brain lead to "your" actions (for all that they might not be your free actions), why shouldn't indeterministic events inside your brain be yours ?
Not sure i followed you - I feel a little like Harry Truman when he concluded hearing a lot of economist try to help him - He said: "What I need is a one-handed economist." :smile:
But I got enough of it to note that you seem to be arguing that even though the ideas etc that "pop into your head" may be the result of some quantum process producing "stastical regularities" at the more micro level, "you" still have the option of veto or accepting and acting. If that is basically what you are saying then I would ask how do "you" decide. Are not "you" and your decision process, just the result of other "stastitical regularities" at the micro level also? How do "you" escape from these more fundamental processes. That is why I think quantum mechanics only permits the ilusion of free will - it, not "you" is "calling the shots" - I.e. making the decisions. :grumpy:
 
  • #44
Billy T said:
Not sure i followed you - I feel a little like Harry Truman when he concluded hearing a lot of economist try to help him - He said: "What I need is a one-handed economist." :smile:
But I got enough of it to note that you seem to be arguing that even though the ideas etc that "pop into your head" may be the result of some quantum process producing "stastical regularities" at the more micro level, "you" still have the option of veto or accepting and acting. If that is basically what you are saying then I would ask how do "you" decide. Are not "you" and your decision process, just the result of other "stastitical regularities" at the micro level also?

Yes. So what ? I am constituted by my body and nervous system, which are constituted by the physical processes that make them up, and so on. Nothing
that is not "me" is involved at any stage, so I am not being pushed around
by something else.

How do "you" escape from these more fundamental processes.

I don't need to. FW doesn't require a separate non-physical self.
It does require freedom from strict determinism, but that is already given
by the physics.

That is why I think quantum mechanics only permits the ilusion of free will - it, not "you" is "calling the shots" - I.e. making the decisions. :grumpy:

"It" is "me* under a different description.
 
  • #45
Tournesol said:
Yes. So what ? I am constituted by my body and nervous system, which are constituted by the physical processes that make them up, and so on. Nothing that is not "me" is involved at any stage, so I am not being pushed around by something else...
I never said you were, but while on the subject, you surely agree that someone stronger and perhaps willing to go to jail, could "push you around" don't you?

What you seem quite happy to accept is that the final result of a lot of microscopic processes, such a Brownian diffusion of neural transmitters across synaptic gaps, etc. is "you" and whatever this final cumulative effect of the deterministic part of the microprocess plus the quantum mechanically indeterminant part (if any) is also "you" and thus, by definition, "You" are always "acting freely."

By this logic, so is the computer I am typing on. As with you, it is subjected to some external "pushing around" (mainly key strokes and power line "glitches") but it also is just behaving as a cumulative result of many of its synaptic (should I say transistors?) switching on and off (like your nerves) under the control of the physics at a more fundamental level.

If your are happy with this "computer like" free will, good for you. I am not.
 
  • #46
Billy T said:
By this logic, so is the computer I am typing on. As with you, it is subjected to some external "pushing around" (mainly key strokes and power line "glitches") but it also is just behaving as a cumulative result of many of its synaptic (should I say transistors?) switching on and off (like your nerves) under the control of the physics at a more fundamental level

To say that being pushed around by an external force is a sufficient criterion for *not* being free, does not mean that *not* being pushed around is a
sufficient criterion for being free. Other necessary criteria IMO are
the ability-to-have-done-otherwise and the capacity for conscious reflection.
 
  • #47
Billy T said:
Be my guest - feel "free" :smile: to put up your more positive definition. I was just trying to narrow the field by saying somethings FW and GFW are not.
Sorry, Billy T, but the whole point of the exercise is that you should define what you mean when you speak of FW and GFW. The point I am trying to make is that it is useless to try and debate whether something we call GFW or FW exists or does not exist unless and until we have a definition for these terms.

I can offer several (incompatible) alternative definitions of free will, some of which you may agree with and some of which you may not. But what I do not know is what YOU mean when you talk about FW or GFW (only you can tell me that).

I believe that the universe is deterministic and that (in the strict definition of determinism) there is no room for what many people naively believe is "genuine free will" (ie the ability to "do otherwise than what we actually did"). But I also believe that humans genuinely "feel" that they act with free will, and what we need to do to further our understanding of this feeling is to encapsulate this feeling of free will in a definition that is compatible with determinism (but such definition I know will likely not be acceptable to those who believe that humans possesses some kind of soul or other decision-making capability which transcends determinism).

In the interests of further debate, I therefore offer my personally preferred definition of free will, the kind that is compatible with determinism, the kind that people really do have and the kind that many of us naively (but wrongly) think gives us the ability to "do otherwise than what we did do" :

Definition : free will is the ability of an agent to anticipate alternate possible outcomes dependent on alternate courses of action and to choose which course of action to follow and in so doing to behave in a manner such that the agent’s choice appears, both to itself and to an outside observer, to be reasoned but not consistently predictable.

I believe free will defined in this way (a) is compatible with determinism (b) is exactly what humans experience when they claim that they act with free will (it is entirely consistent with our psychological experience of free will) and (c) implies that free will is not an exclusively human characteristic (ie machines can also have free will).

Of course I accept that you may not accept the above definition. But whether you accept it or not, it is nevertheless a definition and free will defined this way does have the properties I have described.

MF
 
  • #48
moving finger said:
...I believe that the universe is deterministic and that (in the strict definition of determinism) there is no room for what many people naively believe is "genuine free will" (ie the ability to "do otherwise than what we actually did").
I have more problem with this than your definition of free will, because, if one believes that quantum mechanics is valid, as I do, then it is easy to show mathematically that the universe is not deterministic. I doubt that you would object to the math that does this (assuming you can follow it) but you could object to the validity of quantum mechanics (to maintain your belief in "strict determinism." ) Consequently I will not bother with the math proof. Instead, I will offer an experimental /observational proof, trusting that at least you will accept empirical demonstrations:

The radioactive decay of various elements has been extensively studied. Hugh number of observations have permitted "half lifes" to be defined and they do not seem to influenced by external things like magnetic or electric fields. The interval between two activations of a detector is random. every thing about the decay is unpredictable, but I grant that it could be "deterministic" and we just are ignorant of the "hidden variables" that are making it appear to be "indeterment." (That was basically Einstein's view.) so I will build my demonstration at a higher level that exploits the well confirmed random statistics of the decay:

Suppose I place a small quantity of large half-life radio-active material equally distant from two detectors, A & B, and spend a few years observing the detection data (just to confirm it is more random than any random number generation program in any computer program - I.e. grant me the sequences of detections, ...AABABBBAB...etc. is truly random, even if the individual decays are the result of "hidden variables".) Then on your birthday I flip a switch which drops one of two stamped envelopes into a US post offices mail box. If detector "A" is activated before detector "B" then "envelope A" gets mailed, if "B" before "A" it is "envelope B" that is mailed. Once either is mailed the switch is disabled so only only one is mailed. (or some other means achieves "single mailing.")

You will be interested to know more about the envelopes as one is addressed to you. I can't tell to whom the other is addressed or he, a contract murderer, will kill me instead of you. Both envelopes have US $10,000 in them.
In summary, your "happy birthday present" or death (things that should be important to you) is purely random, and completely indeterminant, even if each individual decay of the radioactive material was deterministic by unknown "hidden variables." Never mind the universe, is your future determined or indeterminant?
moving finger said:
...I therefore offer my personally preferred definition of free will, ...
Definition : free will is the ability of an agent to anticipate alternate possible outcomes dependent on alternate courses of action and to choose which course of action to follow and in so doing to behave in a manner such that the agent’s choice appears, both to itself and to an outside observer, to be reasoned but not consistently predictable....MF
To compensate for putting your life at risk, I will accept your definition of free will (or most any reasonable one). The key problem, and why I have been avoiding making one of my own, is the two words I made bold. How is this choice made? Is it not the the net result of a lot of indeterminate small molecules banging into a larger one that we call a "neurotransmitter" and giving it the motion that botanist Brown first observed 180 years ago and we now call "Browian motion" - that random walk Einstein quantified in one of his 5 famous 1905 papers? It is the progress of these neurotransmitters across your synaptic gaps, not you, if you are a "physical body" that is randomly "choosing" what at some much higher level you will presume was your choice. - MHO.
 
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  • #49
Billy T said:
I have more problem with this than your definition of free will, because, if one believes that quantum mechanics is valid, as I do, then it is easy to show mathematically that the universe is not deterministic.
I think you are mistaken here. I also believe quantum mechanics is valid (as far as it goes), but I challenge you or anyone else to show that quantum mechanics implies the universe is necessarily not deterministic. All QM shows is that the world is not predictable. And there is a world of difference between the meaning of "not predictable" and "not deterministic". There are for example perfectly acceptable non-local hidden-variables theories which are consistent with the results of QM and yet are based on determinism.

Billy T said:
I doubt that you would object to the math that does this (assuming you can follow it) but you could object to the validity of quantum mechanics (to maintain your belief in "strict determinism." ) Consequently I will not bother with the math proof. Instead, I will offer an experimental /observational proof, trusting that at least you will accept empirical demonstrations:

The radioactive decay of various elements has been extensively studied. Hugh number of observations have permitted "half lifes" to be defined and they do not seem to influenced by external things like magnetic or electric fields. The interval between two activations of a detector is random. every thing about the decay is unpredictable, but I grant that it could be "deterministic" and we just are ignorant of the "hidden variables" that are making it appear to be "indeterment." (That was basically Einstein's view.) so I will build my demonstration at a higher level that exploits the well confirmed random statistics of the decay:

Suppose I place a small quantity of large half-life radio-active material equally distant from two detectors, A & B, and spend a few years observing the detection data (just to confirm it is more random than any random number generation program in any computer program - I.e. grant me the sequences of detections, ...AABABBBAB...etc. is truly random, even if the individual decays are the result of "hidden variables".) Then on your birthday I flip a switch which drops one of two stamped envelopes into a US post offices mail box. If detector "A" is activated before detector "B" then "envelope A" gets mailed, if "B" before "A" it is "envelope B" that is mailed. Once either is mailed the switch is disabled so only only one is mailed. (or some other means achieves "single mailing.")

You will be interested to know more about the envelopes as one is addressed to you. I can't tell to whom the other is addressed or he, a contract murderer, will kill me instead of you. Both envelopes have US $10,000 in them.
In summary, your "happy birthday present" or death (things that should be important to you) is purely random, and completely indeterminant, even if each individual decay of the radioactive material was deterministic by unknown "hidden variables." Never mind the universe, is your future determined or indeterminant?
The answer is simple and self-evident, one or the other of the following must be true :
(A) if the radioactive decay follows some form of deterministic hidden-variables law then my future is determined (regardless of whether it can be predicted).
(B) if the radioactive decay is truly random and not deterministic, then my future is not determined.

Problem is, what we do not know is whether (A) or (B) above is true (though most followers of Bohr assume B is true).

Billy T said:
To compensate for putting your life at risk, I will accept your definition of free will (or most any reasonable one). The key problem, and why I have been avoiding making one of my own, is the two words I made bold. How is this choice made? Is it not the the net result of a lot of indeterminate small molecules banging into a larger one that we call a "neurotransmitter" and giving it the motion that botanist Brown first observed 180 years ago and we now call "Browian motion" - that random walk Einstein quantified in one of his 5 famous 1905 papers? It is the progress of these neurotransmitters across your synaptic gaps, not you, if you are a "physical body" that is randomly "choosing" what at some much higher level you will presume was your choice. - MHO.
Yes – but so what?
A choice between two or more alternatives is the equivalent of simply taking two or more inputs and producing one output.
I can make a choice. A machine can make a choice. None of this implies that GFW (whatever that is – I am still waiting for your definition) exists.

Is there anything wrong with my definition, as a definition?
If you do not like my definition, please tell me why, and please do offer a better one?

The following question is not meant to be inflammatory or aggressive, so please take it in the spirit intended :

Can you please explain what is the point of debating the existence or non-existence of something you call "GFW" if you are unwilling to define what you mean by "GFW"?

MF :smile:
 
  • #50
moving finger said:
...There are for example perfectly acceptable non-local hidden-variables theories which are consistent with the results of QM and yet are based on determinism.
I grant this, but you missed my point, so I will repeat it, slightly condensed:

"The interval between two activations of a detector is random. Everything about the decay is unpredictable, but I grant that it could be "deterministic" and we just are ignorant of the "hidden variables" that are making it appear to be "indeterminent." ... So I will build my demonstration at a higher level that exploits the well confirmed random statistics of the decay:
Suppose I place a small quantity of large half-life radio-active material equally distant from two detectors, A & B, and spend a few years observing the detection data (just to confirm it is more random than any random number generation program in any computer program - I.e. grant me the sequences of detections, ...AABABBBAB...etc. is truly random, even if the individual decays are the result of "hidden variables".)"

That is: all I am asking of you is to accepted the demonstrated fact that the sequence of detector responses is truly random, even though each decay was completely determined as you and Einstein believed.
If you reject well demonstrated facts, then our discussion is over. If you accept this demonstrated fact, then at least your future is indeterminant, not just epistemologically unknown (unpredictable).

Your argument (B) is irrelevant as it is the sequence ...ABBABBBAAAB... etc. that is important (and demonstrably random) not the deterministic or indeterministic individual decays. - Again, you missed this point.
 
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  • #51
moving finger said:
...A choice between two or more alternatives is the equivalent of simply taking two or more inputs and producing one output.
I can make a choice. A machine can make a choice. ...
Certainly choices are made. For example at an intersection where both right and left turns are possible. that is not the problem, or under discussion.

The question is how is the choice made. Is it by some procedure that is reasonable to interpret as "you made a choice" or by "the net result of many Browian motion (random walks) of neurotransmitters in your synaptic gaps" (among other "biasing facts") that made the choice for 'you'. "

You keep asking me to define GFW, and I have made a stab at it by telling what it is not. Now it is my turn to ask for a definition that is even more critical to the discussion:

What are "you," this choice making thing?
I.e. Please define "you", "yourself" "me" etc.

I have done this in the attachment to first post this thread. Summary of that definition:
"I" am a subroutine in a parietal simulation of the sensible world surrounding my physical body - I.e. an non material information process and as such not constrained to follow exactly the laws of physics - For example "I" can make choices some what (but not much) independent of the the flux of neurotransmitters in synaptic gaps that are controlled by the laws of physics. That is, like a digital simulation in a computer, plus or minus a few neurotransmitters attaching to a nerve cell wall does not change the computation anymore than a few electrons more or less changes the 1 or 0 state of the transister's computers.
 
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  • #52
Billy T said:
I grant this, but you missed my point,
Billy T, with the deepest respect, perhaps I miss your point because your point is confusing and unclear? See my remarks below.

Billy T said:
The interval between two activations of a detector is random. Everything about the decay is unpredictable, but I grant that it could be "deterministic" and we just are ignorant of the "hidden variables" that are making it appear to be "indeterminent." ... So I will build my demonstration at a higher level that exploits the well confirmed random statistics of the decay:
I assume that by "random" you mean "not deterministic". If so, the above is contradictory. Either the decay is random or it is deterministic - you seem to be saying that it is both. Please clarify your meaning here.

Billy T said:
Suppose I place a small quantity of large half-life radio-active material equally distant from two detectors, A & B, and spend a few years observing the detection data (just to confirm it is more random than any random number generation program in any computer program - I.e. grant me the sequences of detections, ...AABABBBAB...etc. is truly random, even if the individual decays are the result of "hidden variables".)
Again, you contradict yourself! Either the results of radioactive decay are "truly random" as you suggest, or they are "the result of hidden variables" - they cannot be both since these are contradictory assumptions! Please clarify what you mean here.

If you are saying the decay is truly random, I would ask how do you KNOW it is truly random? I think you will find that your epistemic observation of apparent randomness cannot necessarily be unambiguously translated to an ontic reality of true randomness.

Billy T said:
That is: all I am asking of you is to accepted the demonstrated fact that the sequence of detector responses is truly random, even though each decay was completely determined as you and Einstein believed.
If you reject well demonstrated facts, then our discussion is over. If you accept this demonstrated fact, then at least your future is indeterminant, not just epistemologically unknown (unpredictable).
Billy T - What "demonstrated facts"? Again, please explain how you will prove (demonstrate) that it is truly random? (ie prove that there are no non-local hidden variables acting?). I believe this cannot be proven. Or are you asking me to simply assume it is random, without any proof?

Billy T said:
Your argument (B) is irrelevant as it is the sequence ...ABBABBBAAAB... etc. that is important (and demonstrably random) not the deterministic or indeterministic individual decays. - Again, you missed this point.
OK, now let me explain my answer :
IF the sequence is truly random then my future is not determined.
IF the sequence is deterministic then my future is determined.

You seem to be asking me to simply "assume" that it is random - and I agree if we accept this assumption then my future is not determined.

My point is that your assumption may be invalid - what you need to do is to PROVE it is truly random if you wish to conclude infallibly that my future is not determined.

You have not proven that it is truly random, and I believe it is not possible to prove it is truly trandom. Ergo, my future may be determined.

MF :smile:
 
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  • #53
Billy T said:
Certainly choices are made. For example at an intersection where both right and left turns are possible. that is not the problem, or under discussion.
Good, we agree!

Billy T said:
The question is how is the choice made. Is it by some procedure that is reasonable to interpret as "you made a choice" or by "the net result of many Browian motion (random walks) of neurotransmitters in your synaptic gaps" (among other "biasing facts") that made the choice for 'you'. ".
It is one and the same - see my definition of "you" below.

Billy T said:
You keep asking me to define GFW, and I have made a stab at it by telling what it is not. Now it is my turn to ask for a definition that is even more critical to the discussion:
lol - sorry Billy T, I do not mean any disrespect but I have to laugh at this point because it is clear that you wish to evade defining what you mean by GFW, hence the whole point of this thread up to now is meaningless - how can you debate GFW if you refuse to define GFW? :biggrin:

Billy T said:
What are "you," this choice making thing?
I.e. Please define "you", "yourself" "me" etc.
Gladly. "you" is just the collection of neural patterns, synaptic pathways, biochemical transmitters (call them what you will), located mostly in your brain. There is no separate "you" in isolation from these things.

Billy T said:
I have done this in the attachment to first post this thread. Summary of that definition:
"I" am a subroutine in a parietal simulation of the sensible world surrounding my physical body - I.e. an non material information process and as such not constrained to follow exactly the laws of physics - For example "I" can make choices some what (but not much) independent of the the flux of neurotransmitters in synaptic gaps that are controlled by the laws of physics. That is, like a digital simulation in a computer, plus or minus a few neurotransmitters attaching to a nerve cell wall does not change the computation anymore than a few electrons more or less changes the 1 or 0 state of the transister's computers.
You are of course entitled to your opinion and definition of "you", but it does not agree with mine. Does your "you" follow any laws at all, or is it supposed to be completely oblivious to any and all laws? (Your analogy to a digital simulation on a computer is false, such a simulation still follows laws). If oblivious to all laws, how does that "you" interact with the physical universe? If your "you" is supposed to be oblivious to all laws, then this is similar to the 17th century "mind-body" dualism that Descartes proposed.
 
  • #54
moving finger said:
...Either the decay is random or it is deterministic - you seem to be saying that it is both. ...
Again, you contradict yourself! Either the results of radioactive decay are "truly random" as you suggest, or they are "the result of hidden variables" - they cannot be both since these are contradictory assumptions! Please clarify what you mean here.
No I am trying to get your attention directed away from individual decays - you may chose either hidden variables that make them deterministic or grant that they are random - I first mentioned "hidden variables"
What I want you to recognize is the the interval between two decays (even if controlled by hidden variables) is random. That is why I mentioned that the lifetimes are not affected by external things like electric or magnetic fields.

Please stop speaking about the individual decays! Focus on the sequence ...AABBBABAA... That is demonstrably random because neither decay has any influence upon another decay. If you like make the experimental arrangement more complex by using two different radioactive source and only count in the sequence decays that are separated in time by such a small increment of time that even light can not travel between the two separated sources (guaranteeing that one does not have any control over the other)

Summary you are still missing the point, why I went to a higher level, where it does not matter if the individual decays are random or controlled by hidden variables. That is also why I mentioned that I might sped two years just proving from observation that the sequence is more random than any computer's random bit string ...1100010001111001001... as they all repeat if you wait long enough (at least so I am told, not an expert in this area.) etc.
 
  • #55
moving finger said:
...Gladly. "you" is just the collection of neural patterns, synaptic pathways, biochemical transmitters (call them what you will), located mostly in your brain. There is no separate "you" in isolation from these things.
So "you" are a physical thing subject to the laws of physics, which you claim are deterministic. How is then that you can make a genuine choice? Is it not determined by the physics of your body processes? I.e. if these laws are deterministic, you could not do otherwise than what you did. (no real choice among alternatives was made.)


moving finger said:
...Does your "you" follow any laws at all, or is it supposed to be completely oblivious to any and all laws?
yes the parietal neural tissue making the simulation is completely following the laws of physics, but what is simulated does not need to. For example, a simulated fire need not produce any smoke - that is it need not exactly simulate a physical fire. "I" could have minor or major variations from physical reality. I think the parietal simulation is quite accurate in regard to most physical processes (Evolution has selected to make this so.) but when it comes to creating "ME" within the simulation, there are psychological aspects not existent in the physical world - one might be free will, another the qualia of "red," another pain, etc. Things that do not exist in material objects like computers, but can exist in simulations, if the experiencer of these things is also just part of the simulation, I.e. not a material but an informaion process. As far as how this information process controls some material objects it does the same way that mental processes control other body functions, like accelerating heart rates when your body is under stress etc. Please note that I am not claiming that free will must exist, only that it can without violation of physics.


moving finger said:
(Your analogy to a digital simulation on a computer is false, such a simulation still follows laws). If oblivious to all laws, how does that "you" interact with the physical universe? If your "you" is supposed to be oblivious to all laws, then this is similar to the 17th century "mind-body" dualism that Descartes proposed.
No, it is not "oblivious to all laws" - I don't subscribe to a "spirit" that thinks independent of the body, etc. I stated that the computer (my body's brain) follows all the physical laws but what is simulated need not follow them exactly already.
 
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  • #56
Billy T said:
No I am trying to get your attention directed away from individual decays - you may chose either hidden variables that make them deterministic or grant that they are random - I first mentioned "hidden variables"
What I want you to recognize is the the interval between two decays (even if controlled by hidden variables) is random. That is why I mentioned that the lifetimes are not affected by external things like electric or magnetic fields.
I am sorry, Billy T, but I think we have a major disconnect here.
By definition, either the decay is random (ie indeterministic) or it is not random (ie deterministic). Hidden Variables theories are attempts to explain how the quantum world can be deterministic and yet still obey the probabilistic rules of QM. Hidden Variables theories ARE deterministic theories, they are not random.

Therefore it is a contradiction to say that "the interval between two decays (even if controlled by hidden variables) is random." Your statement makes no sense in the proper context of Hidden Variables theories.

Billy T said:
Please stop speaking about the individual decays! Focus on the sequence ...AABBBABAA... That is demonstrably random because neither decay has any influence upon another decay.
I grant you the decay maybe appears random, but Hidden Variables theories would say that this is an appearance only, because the variables which control the decay are indeed hidden. There is no way that you can show the difference between a sequence which simply appears (epistemically) to be random (but which is controlled by Hidden Variables) and one which truly is (ontically) random.

Billy T said:
If you like make the experimental arrangement more complex by using two different radioactive source and only count in the sequence decays that are separated in time by such a small increment of time that even light can not travel between the two separated sources (guaranteeing that one does not have any control over the other)
Making the experiment more complex makes no difference, and there is no way that you can make such a guarantee.

The key is : EITHER (A) the decay is truly indeterminstic (random), OR (B) it is deterministic but controlled by hidden variables (simply appears to be random). The decay cannot be both. And I suggest there is no way that you can distinguish experimentally between A or B - you must simply assume either A or B.

Billy T said:
Summary you are still missing the point, why I went to a higher level, where it does not matter if the individual decays are random or controlled by hidden variables. That is also why I mentioned that I might sped two years just proving from observation that the sequence is more random than any computer's random bit string ...1100010001111001001... as they all repeat if you wait long enough (at least so I am told, not an expert in this area.) etc.
I hope you can see now that it is YOU who has been missing the point. You cannot mix "random" with "hidden variables" because the two mean very different things.
All you would ever prove this way is that the sequence APPEARS as random as possible (epistemic quality). You could never know for sure whether it is truly random (and thus indeterministic), or simply appears random because it is controlled by hidden variables (and thus deterministic) (ontic quality).

MF :smile:

Niels Bohr brainwashed a whole generation of physicists into believing that the problem had been solved
Murray Gell-Mann
 
  • #57
Billy T said:
So "you" are a physical thing subject to the laws of physics, which you claim are deterministic. How is then that you can make a genuine choice? Is it not determined by the physics of your body processes? I.e. if these laws are deterministic, you could not do otherwise than what you did. (no real choice among alternatives was made.)
Several posts back, when I pointed out a "choice" can be as simple as taking two inputs and making one output, and even a simple machine can make such a choice, you agreed with me but you said the issue is not about making "choices". I think you will find that determinism and choice are not incompatible concepts...

Billy T said:
the parietal neural tissue making the simulation is completely following the laws of physics, but what is simulated does not need to. For example, a simulated fire need not produce any smoke - that is it need not exactly simulate a physical fire.
That is an incorrect analogy. The "simulated fire" you produce still follows the underlying laws of physics, even though it does not follow the smoke-releated laws of thermodynamics and fluid flow. You cannot use a physical substrate (which obeys the laws of physics) to produce a simulation which miraculously doesn't obey laws.

Billy T said:
"I" could have minor or major variations from physical reality. I think the parietal simulation is quite accurate in regard to most physical processes (Evolution has selected to make this so.) but when it comes to creating "ME" within the simulation, there are psychological aspects not existent in the physical world - one might be free will, another the qualia of "red," another pain, etc.
I disagree. I believe qualia DO exist in the physical world, and they follow physical laws, but 3rd person objective science can never hope to explain or understand all of the details of qualia (or consciousness), because these are 1st person subjective experiences.

Billy T said:
Please note that I am not claiming that free will must exist, only that it can without violation of physics.
And I claim (again) that it is pointless for you to discuss whether something you call "free will" exists or does not exist until you have first defined what you mean by "free will". :smile:

Billy T said:
No, it is not "oblivious to all laws" - I don't subscribe to a "spirit" that thinks independent of the body, etc. I stated that the computer (my body's brain) follows all the physical laws but what is simulated need not follow them exactly already.
OK, so it is controlled by some laws but not by others? Sounds pretty weird to me. (but still along the lines of Descartes dualism) :biggrin:

MF :smile:
 
  • #58
moving finger said:
...I think you will find that determinism and choice are not incompatible concepts...
THEY ARE! You are fond of definitions. The definition of "determined, determinism, etc." is that there is one and only one possible outcome or future. It has been determined by things in the past, which we may or may not know / understand, such as "hidden variables" determining when a particular radioactive atom will decay.
moving finger said:
...You cannot use a physical substrate (which obeys the laws of physics) to produce a simulation which miraculously doesn't obey laws.
Of course the simularion will follow many laws, often some that closely agree with the physical world's laws, but I think one can have a component of the simulation that does neither follows deterministic laws nor is purely a random selection. Exactly how one would achieve this is not very clear to me. I am not computer programmer and doubt that many of them could give a good example, but I am impressed that nature has usually found a way to do almost any thing that is not forbidden by the physical laws. For example, the first fission reaction on Earth was in Africa when a water moderated natural uranium deposit slowly critical - discovered by the mining company. They were began encountering depleted U instead of a natural U ore body deposit! I am inclined to believe that evolution has found a way to make real choices possible, but this is just my opinion. I have never claimed "we" actually have anything more than the illusion of choosing.

moving finger said:
I disagree. I believe qualia DO exist in the physical world, ...
let's consider the most discussed example: "red." (do you know about Mary, who knew everything there is about red, but had never seen it?) In my book Dark Visitor, there is a footnote tied to the term "red giant" (a stellar phase astronomer Jack is describing) that gives the following proof that it is not red: Assume that thousands of years ago, a virus killed all humans except those whose DNA code for Daltonism (people who see objects most people call red as green). Now Astronomer Jack would call this star a "green giant" because it has the same green color as his hemiglobin rich blood. (point of foot note is to admit the error of assigning colors to objects, but state, that to avoid confusion, this erroneous practice will continue.)

In your post 56, in response to my:
"What I want you to recognize is the the interval between two decays (even if controlled by hidden variables) is random. That is why I mentioned that the lifetimes are not affected by external things like electric or magnetic fields."
you said:

moving finger said:
...By definition, either the decay is random (ie indeterministic) or it is not random (ie deterministic). Hidden Variables theories are attempts to explain how the quantum world can be deterministic and yet still obey the probabilistic rules of QM. Hidden Variables theories ARE deterministic theories, they are not random.
Therefore it is a contradiction to say that "the interval between two decays (even if controlled by hidden variables) is random." Your statement makes no sense in the proper context of Hidden Variables theories.
Let me prove that the interval between decays and hence the sequence ...AABBBABABB... is not only demonstrably (as I prior stated) random, even if every decay is determined by hidden variables, but that it must be, if you agree information can not be exchanged between to points in less time than light can travel between these same two points. (I hinted at the proof in prior post and did not want to go to trouble of giving it.)

Assume there are two radioactive sources, each with near by detectors, but these detectors are separated by two light seconds. Also assume that the only decays that are included in the ...AABBBABBABBa... sequence are those that occur within one second of each other. That is at the two sites of the two radioactive sources the time of the decay is recorded with an accuracy of at least 0.4 seconds. Now there is no way that anything at one site can influence any thing at the other site which is recorded in the sequence. . That is the sequence completely without any correlation i.e. is random.

Note that the sequence ...AABBBABBABBa... need not be constructed in "real time." For example, once a week the time marked records from both sites are bought to my house and I construct the sequence (throwing out all events from either site that have an event at the other site more than one second earlier.) The last event in the sequence I can so construct (an A or a B) is what determines if you get $10,000 or die, even if every decay was completely determined by hidden variables!

I asked you in last post to stop talking about the individual decays. You did not. That is why you continue to miss the point, which I can not make any more clearly. The sequence is random. Your future (fortune or death) is not determined. Your case for a deterministic world is lost. Not even only your future is determined.
 
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  • #59
It seems to me that if freewill is not possible, and everything is scripted, then why do we think?

Thinking is, at least from a biological point of view, a means to turn sensory input into a meaningful interpretation of the current situation which we then can examine to make decisions about how best to survive. IOW, human beings are set up to process input and decide on courses of action. If that were a redundant or irrelevant process (because all those actions are pre-scripted anyway), then what's the point in going through the motions?

Or, for that matter, what's the point in having senses, or the ability to act?

It seems to me, that while we are not so sure whether we have freewill, nature seems to think we do, or is at least counting on it in her design of our bodies.

[tex]\phi[/tex]

The Rev
 
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  • #60
Causal determinism is not the same as fatalism. For a causal determinist, things are
ineveitable *becasue* of the causal chains linking them; you can't jump straight
to the end of the chain. The omelette may be inevitable, but you still have to break
the eggs to arrive at it.
 
  • #61
Billy T said:
THEY ARE! You are fond of definitions. The definition of "determined, determinism, etc." is that there is one and only one possible outcome or future. It has been determined by things in the past, which we may or may not know / understand, such as "hidden variables" determining when a particular radioactive atom will decay.
Again you are mistaken, Billy T. As I pointed out already, a choice can be as simple as taking two inputs and producing one output, and in this sense even a simple demonstrably deterministic machine can make a choice, hence choice is compatible with determinism. Making a choice has nothing to do with indeterminism or “free will” (whatever that might be). I am glad however that you do finally acknowledge that hidden variables provide a deterministic solution :biggrin:

Billy T said:
Of course the simularion will follow many laws, often some that closely agree with the physical world's laws, but I think one can have a component of the simulation that does neither follows deterministic laws nor is purely a random selection. Exactly how one would achieve this is not very clear to me. I am not computer programmer and doubt that many of them could give a good example,
It is certainly not clear to me, and I doubt that it is clear to anyone! Reflect on it a little while, Billy T. I see no way that a purely deterministic substrate (hardware, firmware, software etc) can produce a simulation which is in any way indeterministic. We can “simulate” indeterminism yes (just as we simulate a random number generator on a computer), but a computer generated random number is in fact 100% deterministic. In order to get indeterminism, you need to start with indeterminism, you cannot fabricate it from determinism.

Billy T said:
but I am impressed that nature has usually found a way to do almost any thing that is not forbidden by the physical laws. For example, the first fission reaction on Earth was in Africa when a water moderated natural uranium deposit slowly critical - discovered by the mining company. They were began encountering depleted U instead of a natural U ore body deposit! I am inclined to believe that evolution has found a way to make real choices possible, but this is just my opinion. I have never claimed "we" actually have anything more than the illusion of choosing.
Yes, but so what? Nature could be 100% deterministic and still show the variety of forms She has shown. Nothing you have said points to indeterminism.

Billy T said:
lets consider the most discussed example: "red." (do you know about Mary, who knew everything there is about red, but had never seen it?)
Yes, this is a famous argument in the debate on qualia, but it is based on a false premise. The premise is that Mary can know EVERYTHING there is to know about the colour red without ever having the experience of seeing the colour red, which is false. One of the fundamental aspects of qualia is that they are 1st person subjective experiences, and it is impossible to convey all of the properties of a 1st person subjective experience using 3rd person objective science. Therefore Mary did NOT know everything about the colour red, because she had never experienced seeing red. But what does this have to do with the subject of this thread?

Billy T said:
In my book Dark Visitor, there is a footnote tied to the term "red giant" (a stellar phase astronomer Jack is describing) that gives the following proof that it is not red: Assume that thousands of years ago, a virus killed all humans except those whose DNA code for Daltonism (people who see objects most people call red as green). Now Astronomer Jack would call this star a "green giant" because it has the same green color as his hemiglobin rich blood. (point of foot note is to admit the error of assigning colors to objects, but state, that to avoid confusion, this erroneous practice will continue.)
What relevance does this have to the subject of this thread?

Billy T said:
In your post 56, in response to my:
"What I want you to recognize is the the interval between two decays (even if controlled by hidden variables) is random. That is why I mentioned that the lifetimes are not affected by external things like electric or magnetic fields."
you said:

Quote:
Originally Posted by moving finger
...By definition, either the decay is random (ie indeterministic) or it is not random (ie deterministic). Hidden Variables theories are attempts to explain how the quantum world can be deterministic and yet still obey the probabilistic rules of QM. Hidden Variables theories ARE deterministic theories, they are not random.
Therefore it is a contradiction to say that "the interval between two decays (even if controlled by hidden variables) is random." Your statement makes no sense in the proper context of Hidden Variables theories.

Let me prove that the interval between decays and hence the sequence ...AABBBABABB... is not only demonstrably (as I prior stated) random, even if every decay is determined by hidden variables, but that it must be, if you agree information can not be exchanged between to points in less time than light can travel between these same two points. (I hinted at the proof in prior post and did not want to go to trouble of giving it.)

Assume there are two radioactive sources, each with near by detectors, but these detectors are separated by two light seconds. Also assume that the only decays that are included in the ...AABBBABBABBa... sequence are those that occur within one second of each other. That is at the two sites of the two radioactive sources the time of the decay is recorded with an accuracy of at least 0.4 seconds. Now there is no way that anything at one site can influence any thing at the other site which is recorded in the sequence. . That is the sequence completely without any correlation i.e. is random.

Note that the sequence ...AABBBABBABBa... need not be constructed in "real time." For example, once a week the time marked records from both sites are bought to my house and I construct the sequence (throwing out all events from either site that have an event at the other site more than one second earlier.) The last event in the sequence I can so construct (an A or a B) is what determines if you get $10,000 or die, even if every decay was completely determined by hidden variables!

I asked you in last post to stop talking about the individual decays. You did not. That is why you continue to miss the point, which I can not make any more clearly. The sequence is random. Your future (fortune or death) is not determined. Your case for a deterministic world is lost. Not even only your future is determined.
Billy T, I have never been talking only about individual decays, I have no idea why you keep harping on about this. And you have not proven (as you claim) that “the interval between decays and hence the sequence ...AABBBABABB... is not only demonstrably random, even if every decay is determined by hidden variables”.

IF each individual decay is deterministic (eg, as you suggest, determined by hidden variables) then it follows that the SEQUENCE will also be deterministic; and it also follows that two separate radioactive sources (no matter how far apart they are) will also each have deterministic decay sequences, and (unless you can show that there is a SOURCE OF INDETERMINISM somewhere, which you have not shown), then it also follows that any correlation between the two sources will also be deterministic. Whether they are in causal contact or not. Why do you keep insisting the sequence must be random or indeterministic?

To make it easier, let us look at a different example, such as two computers each “simulating” a radioactive source, but each doing so according to a simple algorithm and hence deterministically. I am sure you will agree that the individual “decays” are deterministic, and you will also agree that each decay sequence produced by each computer is also deterministic. It also follows (unless you can show where there is a source of indeterminism coming in) that any kind of correlation of sequences between the two computers, no matter how far apart they are, is also deterministic. You cannot produce any kind of indeterministic outcome from a purely deterministic process. If you believe that you can, then the onus is on you to demonstrate how this can be done (you have not done it so far).

Therefore it all boils down to : Is the basic process of radioactive decay deterministic or indeterministic? If the former, then the sequence and the correlations will also be deterministic; if the latter then the sequence and the correlations will also be indeterministic. It is as simple as that!

The question therefore remains : Are you assuming that radioactive decay is a deterministic or an indeterministic process?

MF :smile:
 
  • #62
The Rev said:
It seems to me that if freewill is not possible, and everything is scripted, then why do we think?
What is your definition of freewill please?

It’s pointless to debate whether something exists or not unless that something is defined.

I have asked the originator of this thread to define what he means by free will, but so far he has not done so.

MF :smile:
 
  • #63
Tournesol said:
Causal determinism is not the same as fatalism. For a causal determinist, things are
ineveitable *becasue* of the causal chains linking them; you can't jump straight
to the end of the chain. The omelette may be inevitable, but you still have to break
the eggs to arrive at it.
did anyone suggest it was?

MF :smile:
 
  • #64
The Rev said:
...Thinking is, at least from a biological point of view, a means to turn sensory input into a meaningful interpretation of the current situation which we then can examine to make decisions about how best to survive. IOW, human beings are set up to process input and decide on courses of action. If that were a redundant or irrelevant process (because all those actions are pre-scripted anyway), then what's the point in going through the motions? Or, for that matter, what's the point in having senses, or the ability to act? It seems to me, that while we are not so sure whether we have freewill, nature seems to think we do, or is at least counting on it in her design of our bodies.
I have made your definition of thinking bold to show that your definition and following argument applies equally well to an amoeba, swiming away from a drop of vingar that falls in its pond. I also note that the existence of some "purpose to life", other than to sever as a vehicle for extending genes into the future, is not proven or granted by all.
 
  • #65
moving finger said:
...Making a choice has nothing to do with indeterminism or “free will” (whatever that might be).
In a quantum mechanical or non-deterministic world (which you do not accept as the real world) one might chose to turn right or left at an intersection because the future is not determined by the past. In deterministic world, the past has determined whether you will turn right or left (definition of "determined," "deterministic world," etc.). You may suffer under the psychological illusion that you made a "choice", when turning left, but you did not. That left turn was determined even before you were born! (If world is deterministics as you believe.) No choice is possible if the future is completely determined by the past.

moving finger said:
I am glad however that you do finally acknowledge that hidden variables provide a deterministic solution
I did not want to argue about hidden variables and they make no difference to the discussion of free will, so because I anticipated that you might bring them up, I granted even before you ever mentioned them (that is hardly "finally" -check back prior posts) that you could have radio active decay deterministic and controlled by "hidden variables" if you wish. I said I would "go to a higher level and work only with the sequence of detections" that can be demonstrably shown to be random. (my "two years of testing")

You disputed that the sequence was random (and still do), so I set up two radio active source separated with space like separation of 2 light seconds and only included decays in the construction of the sequence that have locally recorded time differing by one second or less to prove that no information about one decay at A could travel to influence the other decay at B.

I thought you would accept this as proof that the sequence is random. I will not bother to describe how Bell's inequality and experimental results also prove it is as that would be lost on you if you do not understand the simpler proof already given. (I.e. space-like separated events can never effect each other, and must therefore proceed completely independently - no correlation - i.e. random relative to each other, and hence their sequence is also random.)

moving finger said:
...Yes, but so what? Nature could be 100% deterministic and still show the variety of forms She has shown. Nothing you have said points to indeterminism.
False the sequence has been proven to be uncorrelated as the events included in the sequence were space like separated.

moving finger said:
...IF each individual decay is deterministic ...then it follows that the SEQUENCE will also be deterministic; and it also follows that two separate radioactive sources (no matter how far apart they are) will also each have deterministic decay sequences, ...
Yes the sequence ...BBBBBBBBBB... could have deterministic intervals. (and likewise ...AAAAAAAAAAAA... could have deterministic intervals.) because one comes solely from site B and the other solely from site A. Clearly B site is not space-like separated from site B. (and etc. for site A.) (I have made your word "each" bold to show where you continue to miss the point.)

BUT, the sequence ...AABBBABBAAAB... I constructed comes from one event at B occurring less that 1 second prior to one at A, and conversely. When the information that the event at B occurred takes at least 2 second to get from B to A, it can not have any influence upon the event at A, if the "A event" is only one second after the B event. Thus, the information, even if it did exist, arrives too late to have controlled when the event at A occurred.

In fact the sequence was constructed at my house, from the records made separately B and at A, a week earlier. These records would just be a list of times (accurate to 0.4s) of when decays occurred. For example, B's record could include times ...0:54:02, 1:03:15, 1:13:22 ...
and A's could include ... 1:01:05, 1:02:45, 1:06:14...
and then only the "B event" at 1:03:15 together with the event A at 1:02:45 meet the criteria of having occurred with in 1 second of each other (space like separation guaranteed In this case, "A" occurred first, so these two events will contribute a "AB" in the constructed sequence (not a "BA") and all of the other possible pairing of the six events listed above, from the two different sites, (for example B=1:03:15 and A=1:06:14) will be ignored/ discarded as there is time for the B event at 1:03:15 to influence the A event at 1:06:14 (I.e. they are "time like separated" and conceivable related in some way.)

If you don't understand it now, I will give up trying to get you to see that no matter what type of determinism at each of the sites is occurring (hidden variable or anything else you wish to postulate) separately at A & B sites the sequence constructed from only space-like separated decays is random.

That is why I said hidden variable make no difference and readily granted them to you even though I know Bell's inequality and real world data show they do not. - Einstein was wrong on hidden variables.

moving finger said:
...Therefore it all boils down to : Is the basic process of radioactive decay deterministic or indeterministic? If the former, then the sequence and the correlations will also be deterministic; if the latter then the sequence and the correlations will also be indeterministic. It is as simple as that!...MF :smile:
I have show this false in increasing detail in last three posts to you. I can do no more.

You need to have some understanding of what "space like separation" means for the sequence constructedonly from space-like separated events.
 
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  • #66
moving finger said:
What is your definition of freewill please?

It’s pointless to debate whether something exists or not unless that something is defined.

I have asked the originator of this thread to define what he means by free will, but so far he has not done so.

MF :smile:

There's this old argument for the existence of God that says He must exist because the universe is just a bunch of actions that are effects of previous causes, which themselves are effects of causes, etc. Since there must have been a first cause to set everything else in motion, there must be a God.

I derive my idea of freewill from this prime mover idea. If you can create a cause from nothing, you are exercising freewill, if not, not. For example, if I decide to make a pass at a hot blonde, there is either the option that this decision is just an effect, at the end of a long cause/effect chain leading back to the Big Bang, or the option that I spontaneously created the decision to some degree.

If that decision is in any way not a product of simple cause and effect outside my own volition, then I have, to that degree, freewill.

[tex]\phi[/tex]

The Rev
 
  • #67
Billy T said:
I have made your definition of thinking bold to show that your definition and following argument applies equally well to an amoeba, swiming away from a drop of vingar that falls in its pond.

I don't see how a lower lifeform's reflex reaction to a life threatening situation wouldn't be freewill. I know it's a big philosophical conundrum, but that doesn't mean it only applies to higher life forms.

I also note that the existence of some "purpose to life", other than to sever as a vehicle for extending genes into the future, is not proven or granted by all.

This may be just a difference in our views of freewill. I admit I haven't read the entire thread, but rather just tossed in an idea to see what people thought of it. I think it's meaningful that living things (not necessarily just humans) are designed to make decisions. It doesn't prove freewill, I know, but it does seem strange that living things function as though they have it.

[tex]\phi[/tex]

The Rev
 
  • #68
Billy T said:
In a quantum mechanical or non-deterministic world (which you do not accept as the real world) one might chose to turn right or left at an intersection because the future is not determined by the past. In deterministic world, the past has determined whether you will turn right or left (definition of "determined," "deterministic world," etc.). You may suffer under the psychological illusion that you made a "choice", when turning left, but you did not. That left turn was determined even before you were born! (If world is deterministics as you believe.) No choice is possible if the future is completely determined by the past.
I would say you are confusing “choice” with some notion of “unconstrained choice”. As I have pointed out, a choice is simply “taking 2 or more inputs and producing 1 output”. Such a choice can be made by a completely deterministic machine. Now, you would presumably say that this is then “not a choice” because it is somehow constrained (the machine had to do what it did), but what you are actually saying is that the machine is making a constrained choice as opposed to a free choice – but we have no idea what a free choice is because we still do not have your definition of free will!

Billy T said:
I did not want to argue about hidden variables and they make no difference to the discussion of free will, so because I anticipated that you might bring them up, I granted even before you ever mentioned them (that is hardly "finally" -check back prior posts) that you could have radio active decay deterministic and controlled by "hidden variables" if you wish. I said I would "go to a higher level and work only with the sequence of detections" that can be demonstrably shown to be random. (my "two years of testing").
You have not made it clear what you mean by “a higher level”. You still have not shown how a deterministic process can produce an indeterministic outcome.

Billy T said:
You disputed that the sequence was random (and still do) .
No, I dispute that you have proven it is random. There is a difference. The sequence MAY BE RANDOM, I am not saying it is not random. What I am saying is that there is no way to know whether the sequence is truly random or not – it may appear to be random but it cannot be proven to be random. There is a difference between epistemic indeterminability and ontic indeterminism, and you cannot prove one from the other.

Billy T said:
so I set up two radio active source separated with space like separation of 2 light seconds and only included decays in the construction of the sequence that have locally recorded time differing by one second or less to prove that no information about one decay at A could travel to influence the other decay at B.
You have not proven that there is no correlation between the sources. Two sources can be correlated even though there is no direct information transfer at superluminal speeds between the two sources. All it requires is that information could have been transferred between the two sources at sometime (any time) in the past.

Billy T said:
I thought you would accept this as proof that the sequence is random. I will not bother to describe how Bell's inequality and experimental results also prove it is as that would be lost on you if you do not understand the simpler proof already given.
I am fully aware of Bell’s theorem, I think you are the one who does not understand. Bell’s inequality and the experimental results of QM shows that the universe must behave non-locally, which simply means that space-like separated events can remain ENTANGLED with each other, such that what happens on one side of the universe can be quantum mechanically entangled instantaneously with another event on the other side of the universe, ie apparent superluminal effects (but no useful information is transferred at superluminal speeds). Read Bell’s work and Aspect’s work closely and you will understand. It has NOTHING to do with indeterminism. In fact Bell was a supporter of Bohm’s hidden variables ideas, Bell did not believe the quantum world was fundamentally indeterministic.

Billy T said:
(I.e. space-like separated events can never effect each other, and must therefore proceed completely independently - no correlation - i.e. random relative to each other, and hence their sequence is also random.) .
Correlation has nothing to do with space-like separation, as I have pointed out already. And quantum entanglement shows that spacelike separated events can still be entangled.

Billy T said:
False the sequence has been proven to be uncorrelated as the events included in the sequence were space like separated. .
Incorrect, for the reasons I have shown.

Billy T said:
Yes the sequence ...BBBBBBBBBB... could have deterministic intervals. (and likewise ...AAAAAAAAAAAA... could have deterministic intervals.) because one comes solely from site B and the other solely from site A. Clearly B site is not space-like separated from site B. (and etc. for site A.) (I have made your word "each" bold to show where you continue to miss the point.) .
You continue to miss the point that spacelike separation does not imply no correlation.

Billy T said:
BUT, the sequence ...AABBBABBAAAB... I constructed comes from one event at B occurring less that 1 second prior to one at A, and conversely. When the information that the event at B occurred takes at least 2 second to get from B to A, it can not have any influence upon the event at A, if the "A event" is only one second after the B event. Thus, the information, even if it did exist, arrives too late to have controlled when the event at A occurred.
Again, spacelike separation does not imply no correlation.

Billy T said:
In fact the sequence was constructed at my house, from the records made separately B and at A, a week earlier. These records would just be a list of times (accurate to 0.4s) of when decays occurred. For example, B's record could include times ...0:54:02, 1:03:15, 1:13:22 ...
and A's could include ... 1:01:05, 1:02:45, 1:06:14...
and then only the "B event" at 1:03:15 together with the event A at 1:02:45 meet the criteria of having occurred with in 1 second of each other (space like separation guaranteed In this case, "A" occurred first, so these two events will contribute a "AB" in the constructed sequence (not a "BA") and all of the other possible pairing of the six events listed above, from the two different sites, (for example B=1:03:15 and A=1:06:14) will be ignored/ discarded as there is time for the B event at 1:03:15 to influence the A event at 1:06:14 (I.e. they are "time like separated" and conceivable related in some way.)

If you don't understand it now, I will give up trying to get you to see that no matter what type of determinism at each of the sites is occurring (hidden variable or anything else you wish to postulate) separately at A & B sites the sequence constructed from only space-like separated decays is random.
Again, spacelike separation does not require that there is no correlation. With respect, you are woefully misguided.

Billy T said:
That is why I said hidden variable make no difference and readily granted them to you even though I know Bell's inequality and real world data show they do not. - Einstein was wrong on hidden variables.
Einstein was demonstrably wrong only in believing in a local reality. The results of QM show that the world cannot be both real and local, however it can be real and non-local. And this is what Bell himself believed. In fact no matter what interpretation of QM you adopt, the world must be non-local. So non-locality is here to stay. But nobody has EVER proven that the world is not deterministic at a quantum level, and nobody has ever proven that non-local hidden variables theories do not work.

Billy T said:
I have show this false in increasing detail in last three posts to you. I can do no more.
You misunderstand causation and correlation at an elementary level my dear friend. If you continue to misunderstand this, as well as the results of Bell’s theorem and the results of QM, then I also can do no more. You obviously refuse to believe me. I suggest you go ask someone whom you will believe.

Billy T said:
You need to have some understanding of what "space like separation" means for the sequence constructedonly from space-like separated events.
You need to understand that spacelike separation has nothing to do with correlation, it has to do only with direct causation, and the two are quite different.

MF :smile:
 
  • #69
The Rev said:
There's this old argument for the existence of God that says He must exist because the universe is just a bunch of actions that are effects of previous causes, which themselves are effects of causes, etc. Since there must have been a first cause to set everything else in motion, there must be a God.
Why must the first cause be God? (unless one defines God as "the first cause", in which case the answer is obvious)

The Rev said:
I derive my idea of freewill from this prime mover idea. If you can create a cause from nothing, you are exercising freewill, if not, not. For example, if I decide to make a pass at a hot blonde, there is either the option that this decision is just an effect, at the end of a long cause/effect chain leading back to the Big Bang, or the option that I spontaneously created the decision to some degree.
QM suggests that events may happen at a QM level without cause, does this mean that QM particles have free will?

Are you suggesting that free will is some kind of spontaneous "action with no prior cause"? Surely this just results in random events, how can this be translated into something we call human free will?

But no, you are suggesting that free will is something "I spontaneously created" - which seems a contradiction? Either something is spontaneous (ie without cause), or it is created (in this case by "I", whatever "I" might be). Therefore we need to ask - is this act (of free will) spontaneous (without cause) or is it in fact caused by the "I"?

The Rev said:
If that decision is in any way not a product of simple cause and effect outside my own volition, then I have, to that degree, freewill.
And now "my own volition" is coming into it. Thus free will is not, in fact, simply action without cause, it is action caused or at least moderated by "my own volition"?

Can you define what you mean by "my own volition"?

Where is the "you" which is presumably part of the "my own" in all of this?

Are you suggesting that "your volition" proceeds independently of the cause and effect of the material world, in some kind of dualistic realtionship, a la Descartes?

MF :smile:
 
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  • #70
Billy T

If you would like to educate yourself about causal relationships and the difference between direct causation and correlation, and at the same time understand how spacelike events can be correlated even though there is no direct causation between the events concerned, read the following :

http://plato.stanford.edu/entries/physics-Rpcc/

MF :smile:
 

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