Ian,
Determinism does not mean "determined by something else". It means only that the behavior follows some algorithmic rules.
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Stimp
I am not talking about looking at the decision, saying that what you did can be mathematically modeled, and then concluding that it was deterministic.
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Now you’re completely arguing the diametric opposite of what you were arguing before. Following a rule necessitates the actual existence of a rule. But you have denied the existence of such rules and said that behaviour can be simply described by such rules.
Saying that the behavior follows some algorithmic rules does not necessitate that the rules exist as anything more than a description of the behavior, as I have already explained. That is one
possible meaning of the word "follows", but not the only one, and I have already explained that it is not the one I am using.
In any event, that second quote is taken out of context. That comment was specifically made with respect to the question of whether the mind makes its decision arbitrarily, or for a reason. It must do one or the other, because all "arbitrary" means is "for no reason". The question of the technical mathematical meaning of "determinism" is irrelevant to this argument. The point is that your intuitive notion that your choices are neither inevitable, nor arbitrary, is self-contradictory. Mathematical determinism (the question of whether the behavior can be mathematically modelled or not), does not even enter into it.
Do you understand how vital this distinction is?
Yes, and I have clarified that distinction at least twice now. Determinism just means that the behavior can be mathematically modelled. This is commonly referred to by saying "the behavior follows this set of algorithmic rules". That does not necessarily imply that something somehow "forced" the thing to behave that way. The reason why it behaved that way is not addressed by that statement at all.
If you say our behaviour follows rules, then I think this is absurd. We don't follow rules, rather we choose freely. Such behaviour then might be able to be described by rules, although it is not clear to me how arbitrary decisions and arbitrary bodily movements (but not random) can be encompassed by rules.
Whether it is clear to you or not, the fact remains that either every aspect of our behavior happens for a reason, in which case our choices are inevitable, or there are aspects of our behavior which do not happen for any reason, in which case our choices are (at least to some degree), arbitrary. Either way you notion of free-will goes out the window.
Saying that we "chose freely" is an empty statement, unless you explain how this differs from our choices being inevitable, or arbitrary. Simply stating that they are neither, does not tell me anything. It just seems self-contradictory, because not being inevitable seems to logically imply being arbitrary, and vice-versa.
If I completely know your prior mental state, then in principle I can employ an algorithm to exactly predict your behavior, and it will always be right. To claim that this is not determinism, is nonsense. To claim that you could choose differently than my prediction, is to assert that my prediction could end up being wrong. If you then concede that my prediction will not ever be wrong, you are just contradicting yourself.
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But I do claim, that even perfect prediction, does not necessitate determinism.
Then you are not talking about determinism in the mathematical sense. You are talking about something which you have not defined.
It is quite simple. If somebody knows me really well, then they could predict a great deal of my behaviour. They could predict what TV programme I will choose to watch amongst competing options, what food I will choose to eat amongst competing options, where I will choose to go out for the night amongst competing options and so on. But it is utterly absurd to suggest that my behaviour is determined. I make these choices because they are what I want to do.
If this is the case, then given that you want to make choice A, it is inevitable that you will. Since the fact that you want to make choice A is a fact about your prior mental state, you are saying that your choice inevitably follows from your prior mental state. That contradicts your own conception of free-will.
Also, why did you want to make the choice you wanted to make? If there is a reason, then that mental state followed from a combination of prior physical and mental states (the reasons you wanted to do so). If there is no reason, then by definition, your wanting to make that choice was arbitrary. Again, this contradicts your own conception of free-will.
How you define "determinism" does not even matter. The point is that things either happen for a reason, or they do not. Your conception of free-will requires that they simultaneously happen for a reason, and are not constrained by those reasons. That is nonsense.
The fact that somebody knows me inside out, and can predict what decisions I will make, does not negate the idea that I could have chosen otherwise.
No, but the fact that you assert that if the event were repeated, that the same prior state would
always result in the same choice, does.
Saying that you could have chosen otherwise, but that it was certain that you would not, is just empty semantics. It does not actually mean anything.
Two pertinent points to be made here:
a) We have a genuine ability to choose between these competing options, so that even when we choose one option, we could have chosen otherwise.
As I said, this is a completely empty statement if you assert that under the same conditions, we would always choose the same option. I might as well say that the Earth
could just spontaneously start rotating the opposite way it currently does, but that it never will. That statement does not actually
mean anything.
b) Our environment and the state of our brains influence what we want or choose to do, but ultimately what we choose to do derives from the self. Why is the self as it is? It is an unanalysable existent. Nothing causes the self to be as it is in its essence.
Like I said, all you have done is move the decision making process from the brain, to the self. This changes nothing. The self must still either make the choices it does for a reason, or make them arbitrarily. Saying that nothing causes the self to do what it does, does not change this. It is either the nature of the self to make choices for a reason, or it is the nature of the self to make choices arbitrarily. Nothing else need force it to behave the way it does, in order for my argument to be valid.
I think that "a” is the sticking point here. I am not maintaining that the vast majority of my decisions cannot in principle be predicted. I’m saying that even though someone could very effectively predict my choices under any given scenario, nevertheless I could have chosen otherwise. But you seem to be maintaining that because ultimately I choose a particular course of action, I therefore had to choose that particular course of action.
I have maintained nothing of the sort. What I have said is that
either you had to choose that particular course of action,
or the choice was, at least to some degree, arbitrary. I also specifically asked you whether you would ever make a different choice, given the same prior states. Claiming that because you answered "no" to that question, you had to make the choice you made, is quite a bit different than just saying that because you made a specific choice, you had to.
Now I do not deny that if the universe at any particular instance were repeated, and I felt exactly the same, and with the same brain state etc, then I would make exactly the same decision.
This is exactly equivalent to saying that your choice was inevitable, given the prior state. What you have just stated is that you
could not have chosen differently!
But this does not mean to say that I couldn't have chosen otherwise. All it means is that if I am in a particular mental state, and the physical world is in a particular state then clearly I will freely choose to make the same decision. If I did not make the same decision this would mean that there were an element of randomness involved in my choosing. But this does not mean to say, that if I'd been so disposed, I couldn't have chosen otherwise.
But if you had "been so disposed", that would mean your prior mental state was different! Like I said, this just becomes compatibilism. You could have chosen differently
if you had wanted to, but since you did
not want to, you could not, in fact, have actually chosen differently!
That intention is part of your prior mental state!
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Part of my present mental state certainly. But an intention to behave in a particular manner might suddenly spontaneously arise.
And how would that not be arbitrary? Is there a reason for the intention to spontaneously arise? If you repeated the situation many times, each time with the same physical and mental states some fraction of a second before the choice you made, would intentions to choose differently sometimes spontaneously arise, and sometimes not? If so, how is this, and thus ultimately your choice, not arbitrary?
If I completely know your prior mental state, then in principle I can employ an algorithm to exactly predict your behavior, and it will always be right.
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No, you would need to know me inside out, and even then perfect prediction would be impossible
This implies that your choices are, at least to some degree, arbitrary. If they are not, then there is a reason for everything you do, which means that there is an algorithm that could exactly predict your behavior from prior conditions.
(and even if i were completely predictable, this does not establish determinism) It's no good knowing completely a snap shot of my particular mental state at a particular time. I paste in yet again the point I made before.
. . . this just leaves the tricky question of whether our behaviour is psychologically determined. Certainly I choose as I want to do. So in this sense my actions are determined by my desires. But are my desires inevitable? I would suggest this is only so if we treat the psychological realm in the same way as we do the physical realm, so that future psychological states follow on inevitably from past psychological states. Now, I feel that this can be seriously questioned. Psychological states cannot be described using information (as, from the perspective of my metaphysic, you would only be describing the neural correlates), and I would seriously question whether we can provide any incorrigible rules whereby a future psychological state will proceed inevitably from a past psychological state. But this does not mean to say that a given psychological state is random. It does not mean to say this because we constantly define ourselves, what we are, what we desire and so on. In other words we constantly mould ourselves. Not that anything outside ourselves moulds us, but rather it is of the essence of the substantial self that even though it has causal powers, it is not itself caused by anything, but is rather an unanalysable existent (indeed, it is the only ontologically self-subsistent existent). Because of this, in choosing whether to have eggs and bacon for breakfast, or porridge for breakfast, this choice can genuinely been made in the now, so to speak.
You can repeat this as often as you like, but it is just empty semantics. Either psychological states inevitably follow from prior states, according to same logical rules, or they don't, in which case they are, at least to some degree, arbitrary. You have established the self as the first mover: that which is not caused by anything else, but which causes other things to behave as they do. But all this means is that nothing
external to the self constrains its actions. It does not mean that the self's behavior is not constrained,
by its own nature, to behave in a particular algorithmic way. And if it is not, then that means that its behavior is, and least to some degree, arbitrary.
You can choose to call this determinism, or not. It makes no difference. The point is that it is still a fact that your choices are either inevitable, or arbitrary. Inventing an immaterial self to make your choices for you, does not allow your will to be any more free than it would be if your choices were made by the brain. All it does is complicate the issue, making it less obvious that your intuitive notion of free-will is not realistic.
To claim that you could choose differently than my prediction, is to assert that my prediction could end up being wrong.
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Depends on what you mean by "possible". It is "possible" that I could choose not to take the £1,000,000, it's just that I invariably will not do so. But this "possibility" of not doing so is different from the statement that the Earth could possibly deviate from its path around the Sun.
I am afraid you are using the word "possible" in a way I have never heard of. To say that you invariably will not do so, sounds to me
exactly like saying that for you to not do so is
impossible.
Saying that we make a choice because we want to, is like saying that electrons repel each other because they have opposite charges. It sounds like an explanation, but it is really just a description. You then have to ask why we wanted to do it. And on and on the chain of causality goes.
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I cannot begin to imagine why you would believe that wanting to do some action does not function as an explanation!??
I just explained why. It does not actually explain why that specific choice was made. It simply
describes the decision making process, by saying that you choose what you want to choose. It replaces the question "Why did you choose X", with "Why did you want to choose X". You still don't actually know why X was chosen.
The chain of causality doesn't go on and on, it stops at the self.
But where in the self? Why did you want to choose X? Was there a reason? If so, then wasn't the fact that you would want to choose X inevitable? If not, then wasn't it arbitrary?
Now you can either say that you wanted to choose X because..., or you can say that you just did, and that there was no reason at all. If you choose the former, the "why" question just moves to the next link in the chain. If you choose the latter, then you are left with your choice of X being arbitrary.
In the materialistic paradigm, it ends by reducing the mental processes to chemical interactions, so essentially we end up with "because that is how matter behaves under those conditions".
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I thought you said your position wasn't metaphysical.
It's not. That's just the point. I don't even attempt to answer the metaphysical question "why does matter behave that way under those conditions". As far as epistemology is concerned, stating that "this is how matter behaves", is as far as you can go.
Anyway, you've already agreed that you have no explanation for why the Earth goes around the Sun, or why we behave as we do. Saying that it's just the way matter behaves is perfectly vacuous.
No, it is not vacuous. It just is not an answer to the metaphysical question of why things happen the way they do. That is the whole point. I do not even attempt to answer such questions, because I have no way, other than blind speculation, to do so.
I have provided an explanation of why we behave in terms of intentions. So what's wrong with it?
What is wrong is that if you cannot provide an explanation for intentions, your explanation does not actually explain anything. All it does is add another layer of complexity to the system.
It is also clear, assuming that not all objects in the Universe are sentient, that the behaviour of the Earth in orbiting the Sun is not due to its intentions. Thus the behaviour of sentient beings has a differing origin than from all other objects in the Universe.
That conclusion does not follow from the premise. In fact, that conclusion only follows if you also assume that intentions are somehow distinct from the rest of the Universe. You have in no way established this.
This seems to me to then refute your metaphysic (i.e materialism).
1) I have no metaphysic. I am not a metaphysical materialist.
2) It does not even refute metaphysical materialism, because your conclusion depends on your own metaphysical assumption that intentions are somehow metaphysically immaterial.