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Ginger

Ginger Campbell


Last Updated: 1/8/2010

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Gender: Female
Status: Married
Age: 54
Sign: Scorpio

State: Alabama
Country: US
Signup Date: 2/9/2007

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Tuesday, March 20, 2007 

Current mood:  contemplative
Quantum mechanics can't explain consciousness and I am going to explore why.

The reason I bring this up is that many people seem to be worried that the mounting evidence that the brain generates the mind implies that free will can not exist. Of course, most of us feel strongly that we do have free will. Various arguments are put forth to "save" free will. (I am not going to tackle the claim that it needs saving in this post.) One recent approach has been to use the uncertainty inherent in quantum mechanics as a potential location for free will. John Searle has observed that this only gives us randomness, not free will, but that doesn't seem to reduce the appeal of such an approach.

Today I wish to argue against using quantum mechanics to explain any aspect of consciousness by considering and entirely different point of view. My argument is simple: I think trying to use quantum mechanics is taking the argument in the wrong direction.

Consciousness is clearly an emergent property. The latest evidence is that there is no master site of consciousness or control in the brain. If that is the case, then looking to the subatomic level is clearly a move in the wrong direction. It makes as much sense as trying to understand the properties of water by studying hydrogen and oxygen. Because water emerges from the combination of the two, studying its components tells us little about water.

Just a brief thought to keep in mind the next time someone tells you how much they enjoyed "what the Bleep to we know?" Personally, I turned it off with disgust but we have to realize how vulnerable non-scientists are to pseudo-science masquerading as science.

This item has been cross-posted at Scientific Blogging and at The Brain Science Podcast site.
James Brown
James Brown

 
Good stuff Ginger,

Thankfully many of the scientists interviewed for "What the Bleep..." have come out against it aswell. It was suggested that I watch it last year sometime by my friend Bryan who thought it was great, he was, worryingly, the Dux (top student, I'm not sure if you use this term in the US) at my secondary school...

So you are right to be worried that even fairly intelligent psuedo-scientists can get suckered by this stuff. Personally I thought the mismatch of what the scientists were saying and what story was told was glaringly obvious, I guess people are always hoping for the magical answer.

A thought I had a while ago regarding this subject (in fact I came up with it while on thesciphishow) is that (bearing in mind that my idea makes no progress towards solving the problem of free-will) free-will or the illusion of it could be better understood if we think of it not as a simple mixture of randomness and determinism but a deterministic allowance for variable randomness.

Meaning that our brains feel or are free because we have the deterministic ability to affect the amount of randomness we allow to influence our decisions. The phrase "free your mind" comes to mind. So basically, we can do most things in a deterministic way but when we come up against a problem or an option that we can't deal with adequately in a deterministic way we have the ability to voluntarily free up our thought processes and think laterally.

I think this is more akin to the intuition we feel about our free will, I think a mixture of randomness and determinism doesn't really "feel" right. The example I give is more a description of a process akin to natural selection, so at least for me, it "feels" intuitively congruent with our "feeling" of free-will.

Just a thought, I'd love to hear what you think, if it interacts with reality at all...
 
Posted by James Brown on Tuesday, June 12, 2007 - 7:09 AM
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Ginger
Ginger Campbell

 
James,

You make some interesting points. I am going to be exploring the subject of free will in detail in an upcoming episode of Books and Ideas. Obviously, the topic is always lurking as we explore various topics on the Brain Science Podcast.

I hope you will be listening!
 
Posted by Ginger on Tuesday, June 12, 2007 - 11:35 PM
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