Defense of Freewill Against Determinism

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ACB
 
Reply Sat 3 Apr, 2010 07:22 am
@Night Ripper,
Further to my post #444 and Night Ripper's reply at #445:

Night Ripper;147582 wrote:
Here's some examples:

strong - nothing ever accelerates faster than the speed of light

intermediate - lower value currency is more widely circulated than higher

weak - the sunrise regularly follows the beating of my heart


Kennethamy - If you regard Night Ripper's "strong regularities" as caused, and his "weak regularities" as accidental, how would you categorise his "intermediate regularities"? Can there be a halfway house between causation and accident?

I believe in causation, by the way.
 
kennethamy
 
Reply Sat 3 Apr, 2010 07:26 am
@ACB,
ACB;147824 wrote:
Further to my post #444 and Night Ripper's reply at #445:



Kennethamy - If you regard Night Ripper's "strong regularities" as caused, and his "weak regularities" as accidental, how would you categorise his "intermediate regularities"? Can there be a halfway house between causation and accident?

I believe in causation, by the way.


I suppose that in the case of a weak regularity (or correlation) it would depend on whether the correlation was statistically significant. Of course, if there is a weak correlation that might be a reason for further investigation. Statisticians know all about this stuff.
 
ughaibu
 
Reply Sat 3 Apr, 2010 07:56 am
@kennethamy,
kennethamy;147792 wrote:
That it is not logically necessary that water turns to ice when cooled does not mean it is not physically necessary, and that it would not be physically impossible for cooled water to turn to steam.
Cool your water by putting it outside your space-ship. Have a guess, will it boil or freeze?
 
kennethamy
 
Reply Sat 3 Apr, 2010 07:59 am
@ughaibu,
ughaibu;147839 wrote:
Cool your water by putting it outside your space-ship. Have a guess, will it boil or freeze?


No idea. Why do you ask? Whatever answer it is, I imagine there is an explanation.
 
ughaibu
 
Reply Sat 3 Apr, 2010 08:01 am
@ACB,
ACB;147824 wrote:
I believe in causation, by the way.
What do you mean by "causation"? If you agree with Kennethamy about what causes are, then your position entails either abandoning, at least, LEM, reductio ad absurdum, diagonalisation and all results of these, or accepting that for any event, the probability of that event having been caused is zero.
 
Night Ripper
 
Reply Sat 3 Apr, 2010 10:48 am
@Zetherin,
Zetherin;147762 wrote:
Let me start by saying I think physical necessity is being used (and ought to be used) in the same way empirical necessity is being used here.

"Something is empirically necessary when it could have happened otherwise but didn't. So, it might be an empirical necessity that there are no orange elephants or that I have to go to sleep at some time. Someone might talk of it being "unthinkable" not to act in a certain way, as if it were impossible not to, or for it to be "impossible" for something not to be the case. However, these examples only show what is the case, not what must be the case. These are called contingent or synthetic truths."

But with that said, and given that any change in water's form is not logically necessary, it does not follow that:

A.) We cannot know that water will not turn to steam when cooled.
B.) We cannot be certain and have good reason to believe water will not turn to steam when cooled.

Your position, I think, is thus: If X is not logically necessary, we can not know that X is true or false. But that is false. That X isn't logically necessary doesn't mean that we can't know that X is true or false. For instance, the proposition "There are no orange elephants" is not logically necessary (it is contingent matter), but we know that that proposition is true. Don't mistake the fact that X isn't logically necessary as a reason to think we cannot know about X. That the matter with the orange elephant isn't logically necessary is no reason to think we are mistaken that there are no orange elephants.


You're trying to make this about knowledge but I really couldn't care less. I'll assume for the sake of argument that anything you wish to claim is true. If you say there are no orange elephants, then fine, I'm not going to bring up skepticism because it doesn't matter. The fact that there are no orange elephants does not imply that it is impossible that there could be elephants. This is about possibility, not knowledge.

My position is as follows. Unless something is physically necessary, it doesn't have to physically happen. Unless something is physically impossible, it could physically happen.

So, the fact that nothing is X doesn't imply that X is physically impossible. Of course, that's all experiments can do. They can only confirm or deny the existence of X. They can't demonstrate X is physically necessary or physically impossible because we can't rule out the possibility that some things just always or never happen, even though they are contingent.
 
Amperage
 
Reply Sat 3 Apr, 2010 10:57 am
@ughaibu,
ughaibu;147760 wrote:
1) randomness doesn't "govern"
2) you're equivocating over two notions of randomness
You did not clarify your position on the matter regardless. Second, to say the world is random is still to say that you are not in control. Not only are you not in control, you would have no clue about anything. Since what happens from one second to the next is purely random. It's just as likely that upon chopping off a persons head they will live as it is they will die. If not then it cannot be truly random.
Third, examine this quote:
Quote:
Randomness, as opposed to unpredictability, is held to be an objective property - determinists believe it is an objective fact that randomness does not in fact exist. Also, what appears random to one observer may not appear random to another. Consider two observers of a sequence of bits, when only one of whom has the cryptographic key needed to turn the sequence of bits into a readable message. For that observer the message is not random, but it is unpredictable for the other.
Source: Wikipedia

There is not and cannot be randomness it only appears that way. I gave you 1 solid theory in my last post but you completely ignored it. De Broglie?Bohm theory - Wikipedia, the free encyclopedia such theories posit such things as "hidden variables" which make a thing seem to be working by random factors simply because we have yet to observe the necessary thing to make the proper predictions....see the quote about need the cryptographic key

ughaibu;147760 wrote:
Because it's complete, it cant be done in any finite period of time, in other words, it cant be done.
He said it's complete in the sense that everything that can be found will be found....He did not say everything has already been found.

ughaibu;147760 wrote:
Because the cardinality of the reals entails that almost nothing in a continuous world is computable.
this stems directly from 2 things...our equipment and our inability as of yet to predict the subatomic world. I see this a moot point, See my response to the first quote. Once that is nailed down....this will be a natural progression.

ughaibu;147760 wrote:
1) a determined world must be, in principle, fully and exactly computable
2) empirical observation does not suggest anything remotely resembling determinism.
this says more about what we don't know then the positive assertion therefore the world is truly random.
 
Night Ripper
 
Reply Sat 3 Apr, 2010 11:08 am
@Amperage,
Amperage;147865 wrote:
There is not and cannot be randomness it only appears that way. I gave you 1 solid theory in my last post but you completely ignored it. De Broglie?Bohm theory - Wikipedia, the free encyclopedia such theories posit such things as "hidden variables" which make a thing seem to be working by random factors simply because we have yet to observe the necessary thing to make the proper predictions....see the quote about need the cryptographic key


It should also be noted that Bohm's theory is widely ignored by scientists because it's an ad hoc theory. It was designed exactly to fit all the data just like the Copenhagen interpretation of Quantum Mechanics does however Bohm's theory didn't give us stunningly accurate predictions because Bohm's theory was retrofitted in hindsight.

Another example comes from the study of finite-state machines. Any indeterministic finite-state machine has a completely equivalent but more complex deterministic finite-state machine.

So, the fact that you can describe anything as deterministic rather than indeterministic means there should be little surprise when it does happen. It certainly isn't provide evidence for one over the other.
 
ughaibu
 
Reply Sat 3 Apr, 2010 11:15 am
@Amperage,
Amperage;147865 wrote:
to say the world is random is still to say that you are not in control.
You are equivocating. The randomness which conflicts with determinism is mathematical, the randomness which conflicts with free will is intentional.
Amperage;147865 wrote:
I gave you 1 solid theory in my last post but you completely ignored it. De Broglie?Bohm theory - Wikipedia, the free encyclopedia such theories posit such things as "hidden variables" which make a thing seem to be working by random factors simply because we have yet to observe the necessary thing to make the proper predictions
1) Bohm's model is global, this conflicts with locality, locality is observable, globality isn't
2) Bohm's hypothesis is unecessary, QM is in any case irreducibly probabilistic
3) his hypothesis fails to Ockham's razor
4) his hypothesis is psychological, not philosophical.
Amperage;147865 wrote:
this stems directly from 2 things...our equipment and our inability as of yet to predict the subatomic world
No, this has nothing to do with it.

Outstanding questions:
1) other than your claim of inductive suggestion from partial prediction, do you have any non-psychological reason to espouse determinism?
2) what do you mean by "magic"?
 
Amperage
 
Reply Sat 3 Apr, 2010 11:19 am
@Night Ripper,
Night Ripper;147867 wrote:
It should also be noted that Bohm is widely ignored by scientists because it's an ad hoc theory. It was designed exactly to fit all the data just like Quantum Mechanics does however QM was the theory that we had first and gave us stunningly accurate predictions while Bohm's theory was retrofitted in hindsight.

Another example comes the study of finite-state machines. Any indeterministic finite-state machine has a completely equivalent but more complex deterministic finite-state machine.

So, the fact that you can describe anything as deterministic rather than indeterministic means there should be little surprise when it does happen. It certainly isn't provide evidence for one over the other.
this is true but simply because something is more complex does not mean it's wrong. In fact, I would expect it to be more complex. Someone once said something to the effect of, "for every complex problem there is a a solution that is simple, neat and wrong." Think about that.
 
kennethamy
 
Reply Sat 3 Apr, 2010 11:21 am
@Night Ripper,
Night Ripper;147864 wrote:
Y

So, the fact that nothing is X doesn't imply that X is physically impossible. Of course, that's all experiments can do. They can only confirm or deny the existence of X. They can't demonstrate X is physically necessary or physically impossible because we can't rule out the possibility that some things just always or never happen, even though they are contingent.


No one is arguing that merely because something does not happen, it could not happen. Where did you get that idea? The argument is that because something does not happen, there is an explanation for why it does not happen, and that the more something does not happen, the more probable it is that there is an explanation for why it does not happen. So, for instance, if there are no dogs without livers, there is probably an explanation for why it is that all dogs have livers. It is not a matter of pure chance that every dog has a liver. It, of course, might be just a matter of chance that all dogs have livers, but the possibility is vanishingly small. The explanation, by the way, turns out to be that all mammals have livers, and all dogs are mammals. Therefore, all dogs have livers. (In case you want to know).
 
Night Ripper
 
Reply Sat 3 Apr, 2010 11:24 am
@Amperage,
Amperage;147870 wrote:
this is true but simply because something is more complex does not mean it's wrong.


I never claimed otherwise. Why don't you stick to replying to what I've actually written?

kennethamy;147871 wrote:
No one is arguing that merely because something does not happen, it could not happen. Where did you get that idea?


I got it from you because that's the only possible thing you can ever learn from an experiment, that something does or does not happen. There's no experiment that could ever tell you something could not happen, only that it does not happen. If you have anything more to add then it can't be based on experiments and therefore can't be based on science, scientific explanation, or anything else outside of the fictional world you've created.
 
kennethamy
 
Reply Sat 3 Apr, 2010 11:32 am
@Night Ripper,
Night Ripper;147872 wrote:
I never claimed otherwise. Why don't you stick to replying to what I've actually written?



I got it from you because that's the only possible thing you can ever learn from an experiment, that something does or does not happen. There's no experiment that could ever tell you something could not happen, only that it does not happen. If you have anything more to add then it can't be based on experiments and therefore can't be based on science, scientific explanation, or anything else outside of the fictional world you've created.


You don't have to experiment to discover that all dogs have livers. And neither do you have to experiment to discover why they all have livers. To repeat, they all have livers because all dogs are mammals, and all mammals have livers. That is why I can predict with surety (not certainty) that the next dog I observe will have a liver. Prediction and explanation are just opposite sides of the same coin.
 
Amperage
 
Reply Sat 3 Apr, 2010 11:35 am
@ughaibu,
ughaibu;147869 wrote:
You are equivocating. The randomness which conflicts with determinism is mathematical, the randomness which conflicts with free will is intentional.
Intentional, controllable randomness? Hmm... sound's a lot like my explanation of global determinism to govern local randomness. You have still yet to clarify your exact position...I can only assume you are an advocate of non-determinism and complete randomness in nature.

ughaibu;147869 wrote:
1) Bohm's model is global, this conflicts with locality, locality is observable, globality isn't
2) Bohm's hypothesis is unecessary, QM is in any case irreducibly probabilistic
3) his hypothesis fails to Ockham's razor
4) his hypothesis is psychological, not philosophical.
1.I cannot observe infrared with my eyes....should I then conclude infrared is a farce? Observability and reality are 2 different things.

2. Who decides what's necessary. What's necessary is what's taking place....if that's what's taking place, it's necessary. It wasn't necessary to know that the planets were orbiting the sun to be able to make predictions about their position, (See Ptolemaic Astronomy which made incredibly accurate predictions) but the system was still just as wrong.

3. Occam's Razor means nothing unless you are deciding which is simpler. A baby shows up at your doorstep and I tell you that 1 stork dropped it off.....and another guy tells you 2 people exchanged bodily fluids to create it. Which is simpler? "for every complex problem there is a solution that is simple, neat and wrong."

4. What? His hypothesis may in fact be correct ....so your point?


ughaibu;147869 wrote:
Outstanding questions:
1) other than your claim of inductive suggestion from partial prediction, do you have any non-psychological reason to espouse determinism?
2) what do you mean by "magic"?
1. I espouse determinism on purely metaphysical grounds as it is impossible for you to tell me that anything which actually happens can be uncaused.

2. By magic I mean the explanation of that something which cannot logically be to something that is being observed. For example if I find a baby on my doorstep and I explained this by saying a stork dropped him off. That is equivalent to saying since we cannot(by the way you realize we DO make probabilistic predictions) make an absolute prediction about something it must therefore be truly random. Something that would defy the simple metaphysical understanding that nothing comes from nothing by nothing and with nothing.

---------- Post added 04-03-2010 at 12:44 PM ----------

Night Ripper;147872 wrote:
I never claimed otherwise. Why don't you stick to replying to what I've actually written?
It's called reading between the lines and extrapolating. I read what you wrote and took it to mean you think the simpler is better. If that's not what you meant then by all means clarify
 
ughaibu
 
Reply Sat 3 Apr, 2010 11:49 am
@Amperage,
Amperage;147877 wrote:
Intentional, controllable randomness?
Order your spoken and written sentences for the day, assign a zero to sentences containing an even number of letters and a one to those containing an odd number. Concatenating these numbers and appending them to "0." gives the prefix of a real number. It is a theorem that the continuation of this string is computable with probability zero, that is to say, it is mathematically random with probability one. But your utterances are intentional, aren't they?
1) if determinism were true, the continuation of this string would be computable
2) the continuation of this string is uncomputable with probability one
3) therefore determinism is false with probability one.
Amperage;147877 wrote:
1. I espouse determinism on purely metaphysical grounds as it is impossible for you to tell me that anything which actually happens can be uncaused.
Cause has nothing to do with determinism, the two notions are antagonistic. I suggest that you read up about determinism, and use something more reliable than Wikipedia.
Amperage;147877 wrote:
2. By magic I mean the explanation of that something which cannot logically be to something that is being observed.
It's not clear what you mean, but I take it you think that human beings can, in principle, understand and explain everything. This view is obviously mistaken, and as it's provenly mistaken and you've been pointed to the proofs, your espousal of such a view would be irrational and a matter of faith. I have no intention of continuing to repeat things until you demonstrate a rational basis for realism about determinism.
 
Night Ripper
 
Reply Sat 3 Apr, 2010 11:50 am
@kennethamy,
kennethamy;147876 wrote:
To repeat, they all have livers because all dogs are mammals, and all mammals have livers.


That is learned by experiment. So, it seems you were wrong when you claimed you didn't have to experiment.

Anyways, nothing physical is ever explained, only described. So, appealing to explanation won't help you. Consider the following two sentences.

Explanation: Water freezes at its freezing point because its molecules lose enough energy to stick together and form crystal lattices.

Description: Water freezes at its freezing point after and only after its molecules lose enough energy to stick together and form crystal lattices.

In the explanation, we have mysterious causation. In the description, we have correlation. Explanations work for people (intentional objects). I went to the store because I wanted milk. They don't work for physical objects.
 
Zetherin
 
Reply Sat 3 Apr, 2010 11:57 am
@Night Ripper,
Night Ripper wrote:
So, the fact that nothing is X doesn't imply that X is physically impossible. Of course, that's all experiments can do. They can only confirm or deny the existence of X. They can't demonstrate X is physically necessary or physically impossible because we can't rule out the possibility that some things just always or never happen, even though they are contingent.


But, as I just noted, the way the term "physical necessity" is generally used is how the term "empirical necessity" is used here

"Something is empirically necessary when it could have happened otherwise but didn't. So, it might be an empirical necessity that there are no orange elephants or that I have to go to sleep at some time. Someone might talk of it being "unthinkable" not to act in a certain way, as if it were impossible not to, or for it to be "impossible" for something not to be the case. However, these examples only show what is the case, not what must be the case. These are called contingent or synthetic truths."

When you use "physical impossibility" you mean something different than what most people mean when they use "physical impossibility". Most acknowledge that these are contingent matters, and that when they say things like, "It is impossible for water to turn to steam when cooled", they are not speaking of logical impossibility. Instead, they are referring to empirical impossibility; essentially what has been the case based on science.

In other words, like I tried to say in another thread, you're arguing over nothing. No one is saying water must be a certain way (logical necessity). Why you keep thinking that, I don't know.

Quote:
Anyways, nothing physical is ever explained, only described


Wait, what?
 
Amperage
 
Reply Sat 3 Apr, 2010 11:59 am
@ughaibu,
ughaibu;147883 wrote:
Order your spoken and written sentences for the day, assign a zero to sentences containing an even number of letters and a one to those containing an odd number. Concatenating these numbers and appending them to "0." gives the prefix of a real number. It is a theorem that the continuation of this string is computable with probability zero, that is to say, it is mathematically random with probability one. But your utterances are intentional, aren't they?
1) if determinism were true, the continuation of this string would be computable
2) the continuation of this string is uncomputable with probability one
3) therefore determinism is false with probability one.
This would be pseudorandomness IMO. Similar to me saying a deck is randomly shuffled. Clearly the deck has been placed in a specific order I just lack the proper information to predict the order.


ughaibu;147883 wrote:
Cause has nothing to do with determinism...
please elaborate on a world of determinsim without causation. They most certainty are related.


ughaibu;147883 wrote:
It's not clear what you mean, but I take it you think that human beings can, in principle, understand and explain everything. This view is obviously mistaken, and as it's provenly mistaken and you've been pointed to the proofs, your espousal of such a view would be irrational and a matter of faith. I have no intention of continuing to repeat things until you demonstrate a rational basis for realism about determinism.
No I take it to mean everything has an explaination. Whether human beings can explain it/understand it is completely irrelevant.
The most rational reason to espouse determinism is the espousal of causation as far as I can see. If X causes Y then it follows that Y was determined to follow X. We have very good reason to believe in the notion of causation therefore we have reason to believe determinism....be that hard determinism or soft determinism is a different story.
 
ughaibu
 
Reply Sat 3 Apr, 2010 12:02 pm
@Amperage,
Amperage;147889 wrote:
No I take it to mean everything has an explaination.
Well, you're wrong. This has been proved by several people, in several ways: Lob, Church/Fitch, Chaitin.
 
Night Ripper
 
Reply Sat 3 Apr, 2010 12:03 pm
@Zetherin,
Zetherin;147888 wrote:
In other words, like I tried to say in another thread, you're arguing over nothing. No one is disagreeing with you, and for some reason you just won't accept that people are using the term differently.


I'm using the term as in this article:

Laws of Nature[The Internet Encyclopedia of Philosophy]

And this book:

"The Concept of Physical Law", by Norman Swartz (Cambridge University Press)

So, for you to tell me that I'm the one using the terminology wrong is kind of silly. If you haven't read the philosophy on this subject then you're the one that's ignorant of what other people are saying, not me.

Anyways, kennethamy most certainly knows what I'm talking about since we've had this argument before. I think you're the only one that's not on the same page. Catch up on your reading and then rejoin the discussion.
 
 

 
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