dschouten said:
For crying out loud, read the whole forum - or the past few posts at least - before you start blathering on, repeating what has already been dealt with.
Now if you combined knowledge of different fields, you'd actually see that the point you are trying to argue is not the correct one. To really understand the emergent behaviour of neural networks, (which animals basically are) go read up on them.
A wide array of both laughable and nonsensical examples were presented in this thread that support the notion of free will, but it does not exist. Allow me to attempt to prove it.
You talk about choice. That presented with situation A, you can choose between reactions B1, B2, B3, etc. And that this choice is made consciously, so this proves that there is free will. It doesn't. The choice you end up making is predetermined by your past experiences or, lacking that, your 'gut instinct', which is all about taking the past experiences that you have in any related field and using them as the input in the decision making process.
Here's an example. You go to the store to buy the latest a CD. You notice just as you are handing off your cash that the CD case has a rather bad scratch on it. Do you buy it? Is this free will? It isn't. Should you decide to go ahead and buy it, there are various factors that have all contributed to this decision. And the following list is by no means complete:
+ The scratch on the case isn't that bad. (To this, your knowledge of the actual technology behind it contributes, since you know that a scratch on the case won't mess up the quality of the songs.)
+ You don't want to look like a fool complaining over a scratch. (Which itself is rooted in past social experiences.)
+ You don't want to trouble the lady at the checkout over something as small as that. (Quite possibly rooted in your sexual behaviour, feeling of smallness.)
+ The case holds no value to you since you'll just rip the songs and listen to them on your computer or portable mp3/ogg player. (You do not view the whole package as valuable, just the actual content.)
+ You have the exact same jewel CD case at home that you've found no use for and can easily replace the scratched one. (Practicality and convenience -- doing this would be less burdening for you than asking for another copy.)
And should you not buy it, here's another list of ideas and feelings which will have contributed to that decision:
+ You want the whole package to be perfect, no exceptions. (This could be rooted in upbringing or the feeling of always needing the best.)
+ You collect CDs like this and would like them to be in mint condition.
+ The scratch bothers you. (It might be that someone scratched a swastika on there.)
+ The scratch looks bad. In fact, it looks so bad that the case might actually break apart should moderate amounts of pressure be applied to it.
No, there is no free will. The whole world is a big domino effect in motion. The key to the whole thing is threshold. You see, our past experiences contribute to our decision-making process. The decisions we make are optimal based on different calculations and priorities. Complex algorithms are at work, which change dynamically all the time as they gather more input, more experiences.
For example, you buy a shiny ring from a gypsy, which turns out to be fake. Since the hit your wallet and your pride took, you feel pretty bad about the whole ordeal and you decide that you should not buy anything from a gypsy ever again. Was it free will? No, because the decision was based on negative first-hand experience. Now, if you think something along the lines of "well, but I'm not a racist because racists are bad, because the word 'racist' carries negative connotations and I'm going to buy things from gypsies just to show that there is free will and/or that I'm not a bad racist" then, well, that's just fooling yourself. That was not free will, that was a decision based on various input. The following factors most likely contributed to the whole thing:
+ Negative feedback from the gypsy. Negative first-hand experiences.
+ The possibility of not being cheated again as often.
+ Historical or second/third-hand experience. You might have heard that gypsies cheat people.
+ The implied racism of not wanting to buy anything from them again.
+ The possibility of being considered a racist within your community.
+ The negative effects of being considered a racist within your community.
+ The possibility of not telling anyone that you don't deal with gypsies should you decide not to, since being considered a racist is a negative thing and has negative effects on your well-being.
And to that you can probably add various less likely factors such as:
+ The free will issue. You decide to do the less likely thing, because you believe that it proves you have free will. I will try to touch upon this later.
+ If someone you know very well and admire is a gypsy, you are likely to think that the gypsy you admire is the rule and the gypsy that cheated you is the exception.
+ You might yourself be a gypsy.
Now, about free will. Doing what you consider less likely is not a sign of free will. It is purely a case of considering the abstract notion of free will and then trying to prove it, because you believe that doing something chaotic will prove that you do have free will and it is that belief which contributes to the decision-making process. That belief might be rooted in anything. Indeed, I might just close this browser window without hitting 'Submit Reply', because It might prove that I have free will. It is a decision that holds less weight, in my mind, but it is nonetheless a possible and plausible outcome of writing this reply. But I won't do it, because I value the peer review of my thought process. And in the way of the great Centauri freethinker Telis Elaris (Babylon 5 reference, sorry), I will reason why that is.
If I post everything I've written, it will be good. Why?
Because other people will be enlightened and because my thoughts will get peer review. Why?
Because I feel that the posts so far in this thread were made mostly by people who don't have the slightest idea of what free will is or isn't. And because I want my thoughts to be reviewed and criticized. Why?
Because I think most posts lack understanding. And because I feel that I will benefit from the peer review of my ideas and notions. Why?
Because the ideas presented in the previous posts can be proven to be wrong through reasoning based on facts. And because I have read Eric S. Raymond's "The Cathedral and the Bazaar" and I once wrote a large essay on applying the Open Source model to human thought and the benefits that would yield.
The human mind is a neural network. Each cell, or node, taking input from various other nodes, doing some simplistic operation on the input and sending the output to other nodes. Unlike in the von Neumann machine under your table, the nodes in a neural network work in parallel. (Yes, I know that today's CPUs execute many instructions in parallel as well. Don't get semantical on me. I'm majoring in compsci.) This gives a neural network massive computing power. Neural networks can either be evolved or trained. Or both. The original setup of a human mind is the product of evolution. It is hardwired to act on certain impulses in a certain way, simply because it resulted in survival and the passing on of genes. Everything since then is training via input, which reshapes the nodes and makes them act differently based on the feedback received.
The illusion of free will is created because we do not and can not comprehend the whole system in the context of the input.
Everything might not be predetermined on the quantum level. Does it mean that human thoughts create some quantum effects and are not part of the universe? Most likely, the answer is no.
The brain is a machine that receives input and produces output based on rules which are shaped according to input and according to feedback created by previous output. Nothing more, nothing less. Everything else is just an illusion.