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Author Topic:   Free will but how free really?
Agobot
Member (Idle past 5555 days)
Posts: 786
Joined: 12-16-2007


Message 35 of 182 (483837)
09-24-2008 1:16 PM
Reply to: Message 33 by Modulous
09-24-2008 12:56 PM


Re: Lack of information
Modulous writes:
But chaos is not a misconception. It is the case that some systems are such that even a slight variance on initial conditions can have dramatic differences in the final outcome. You may be confused about Chaos Theory, so have a quick scout around about it. From wiki. As I will expand upon below, the notion that we can even know all the variables may be flawed as well as the assertion that we have been able to predict things '100%'.
What would be an example of such a system?

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Replies to this message:
 Message 39 by Straggler, posted 09-24-2008 1:29 PM Agobot has replied

  
Agobot
Member (Idle past 5555 days)
Posts: 786
Joined: 12-16-2007


Message 36 of 182 (483839)
09-24-2008 1:20 PM
Reply to: Message 33 by Modulous
09-24-2008 12:56 PM


Re: Lack of information
Modulous writes:
I'm just pointing out that while it may be 'thought experimentally' possible to know all the variables, that doesn't necessarily mean there is no free will. If 'freewillness' has no associated variables, it means we cannot account for it so therefore the future is not fixed.
How could Free Will not have any associated variables, when free will is supposedly the product of our brains, and all the processes in our brains are essentially variables?

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Agobot
Member (Idle past 5555 days)
Posts: 786
Joined: 12-16-2007


Message 38 of 182 (483841)
09-24-2008 1:26 PM
Reply to: Message 37 by Modulous
09-24-2008 1:22 PM


Re: Lack of information
Modulous writes:
I said as much myself - your only out is 'hidden variables'. I gave a link that discusses such ideas, what did you think of it?
Thanks for the link. I think somebody is trying to save our perception of reality from crumbling to dust(unsuccessfully so far).
How could Free Will not have any associated variables, when free will is supposedly the product of our brains, and all the processes in our brains are essentially variables?
Modulous writes:
Who said free will is the product of our brains?
Are you inferring God/super power/Unknown entity?
What would be an example of such a system? {Chaos}
Modulous writes:
The weather.
Why wouldn't weather be 100% predictable if we knew ALL the forces and variables at play?
I had a great pleasure talking to you but have to run now. I'll be back in a fews hours.
Edited by Agobot, : No reason given.
Edited by Agobot, : No reason given.

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 Message 37 by Modulous, posted 09-24-2008 1:22 PM Modulous has replied

Replies to this message:
 Message 50 by Modulous, posted 09-26-2008 10:28 AM Agobot has replied

  
Agobot
Member (Idle past 5555 days)
Posts: 786
Joined: 12-16-2007


Message 40 of 182 (483846)
09-24-2008 1:37 PM
Reply to: Message 39 by Straggler
09-24-2008 1:29 PM


Re: Lack of information
Straggler writes:
Any quantum system is inherently probabalistic so no matter what information is known we can only ever make statistical predictions.
Radioactive decay for example. There is no amount of information that will tell us which atoms will decay. Only how many.
So quantum systems are not really deterministic.
As i've said earlier we know too little about the quantum world yet. You could be right in your assumptions but you could well be wrong. It could be our inadequate understanding of the quantum world that's hindering us from being able to apply the cause and effect principle with 100% certyainity on the quantum world.
Edited by Agobot, : No reason given.

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 Message 39 by Straggler, posted 09-24-2008 1:29 PM Straggler has replied

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Agobot
Member (Idle past 5555 days)
Posts: 786
Joined: 12-16-2007


Message 43 of 182 (483876)
09-24-2008 4:29 PM


This will spill over many topics but...
This discussion is fascinating but is starting to go beyond the capabilities of regular non-physicist folks like me. Having to sift through an endless amount of incomprehensible quantum mechanics maths in a language that's not my native one, is rather discouraging.
Anyway, i feel that if we have to continue from here we are going to need some help from Cavediver or San Goku(Sp?).
We have seen how chaos is defined in classical mechanics. Can chaos also be defined in quantum mechanics? If so, how? Is there a connection between the uncertainty principle of quantum mechanics and chaos and if there is, how are they related? Doesn't chaos arise in a classical, nonquantum world on macroscopic phenomena?
Will the uncertanty principle hold in the future when we will likely have a much more sophisticated and accurate measurements of quantum events than the ones of today? Is there "true, uncaused" chaos in quantum mechanics(I don't really expect anyone to know that with great certainty)? If some of these questions are currently impossible to answer, is an eventual Theory of Everything going to solve them?
What is causing the phenomenon that prevents us from knowing with high accuracy both the position and the momentum of an electron? (kidding, kidding, haha... )
PS. There is something about matter that seems to contradict reality(maybe it's my ignorance) but i will not post it here to avoid going in multiple offtopics.
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Replies to this message:
 Message 44 by Syamsu, posted 09-24-2008 5:10 PM Agobot has not replied
 Message 45 by Straggler, posted 09-24-2008 5:34 PM Agobot has replied

  
Agobot
Member (Idle past 5555 days)
Posts: 786
Joined: 12-16-2007


Message 46 of 182 (483889)
09-24-2008 5:49 PM
Reply to: Message 45 by Straggler
09-24-2008 5:34 PM


Re: This will spill over many topics but...
Agobot writes:
What is causing the phenomenon that prevents us from knowing with accuracy both the position and the momentum of an electron?(kidding, kidding...haha )
Straggler writes:
How would you measure? By observation? But a photon required to do that measurement would itself change the position and/or momentum of that electron. That is my simplistic understanding anyway.
You don't really have to attempt to explain what's causing the Uncertainty Principle. That's why i said kidding, kidding... haha after the question.
Anyway, kidding aside, I appreciate you taking part in this discussion. 10x
Edited by Agobot, : No reason given.
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Agobot
Member (Idle past 5555 days)
Posts: 786
Joined: 12-16-2007


Message 48 of 182 (483954)
09-25-2008 9:17 AM


It basically boils down to an almost religious question. Is it possible for an uncaused event to exist? We generally expect things to follow the cause/effect logic, but for the concept of true random and chaos to exist, it would have to break that logic.
But things seem to follow (based on past history and science) that things are random until proven otherwise. We use probability to estimate something unknown, or not-easily measurable at the given time, without given instrumentation.
Is it impossible to measure a photon's position without changing its future path? I'm pretty sure it is right now but would you go so far as to say it's impossible at all in any length of time?
And if we cannot determine a cause for the uncertainty principle it may seem to act in random, but once we figure out the cause, it is no longer random.
Edited by Agobot, : No reason given.
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Replies to this message:
 Message 49 by ikabod, posted 09-26-2008 3:24 AM Agobot has not replied

  
Agobot
Member (Idle past 5555 days)
Posts: 786
Joined: 12-16-2007


Message 55 of 182 (484279)
09-27-2008 3:14 PM
Reply to: Message 50 by Modulous
09-26-2008 10:28 AM


Re: Lack of information
Edit: Misunderstood the post of Modulous and deleted my reply to it.
Edited by Agobot, : No reason given.
Edited by Agobot, : No reason given.

This message is a reply to:
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