I agree that no act (At least a human act - I can't speak for God's acts, although I'd say He is constrained, in that He has to act according to His nature....which He could change. Or maybe not. I don't know) is completely free. However, by saying that an act is inevitable, I don't understand how you can say that it is not therefore free of choice.
Of course God is traditionally thought to have perfect freedom: this is one of the divine perfections. And this is traditionally thought to
mean that he acts in perfect conformity with his nature. The fact that everything God does is determined by his goodness, his wisdom, his knowledge, etc is what makes him truly free.
Doesn't choice imply multiple possible outcomes? If I must take a book off the bookshelf, but I only have one book on the shelf, can it truly be said that I "chose" to take the book off the shelf?
Yes, choice implies multiple possible outcomes, but "possible" is ambiguous. Consider the following two meanings of "possible"
(1) A (future) event is possible (from our perspective now) if, for all we know, it might happen.
(2) An event is possible if its occurrence is consistent with everything else that occurs (ie, compossible with all existents).
Note that these are not by any means the only meanings of "possible" - I've completely left out
modal possibility, which is the one that philosophers, or at least metaphysicians, normally talk about.
Now the point here is that when you say "A free choice must involve choosing between a number of possible outcomes", which kind of "possible" are you talking about? I'd say that normally we'd think it means (1). This is why your example of the book fails the test. If I have only one book, then I can't meaningfully choose which book to read, because (assuming I'm going to read something at all) the only outcome that is on the cards, so to speak, is
that book. If I have lots of books, then I have a wide range of possible options, in this sense of possible.
Your argument, however, assumes that possibility of type (2) is required for real choice. But I deny that. Suppose I have a large library of books to choose from. And suppose that determinism is true, and my various internal desires are acting upon me to determine that I will in fact choose
Common sense. Now in such a case, I do indeed have only one possible way of choosing, in sense (2) of "possible". But I still have a very wide range of possible ways of choosing, in sense (1) of "possible". And it seems to me, at least, that that's all I need for it to be a meaningful choice. After all, when I choose
Common sense, it's
my choice - it hasn't been imposed upon me by forces outside my control, such as a fierce librarian insisting that I may read only that book. I choose it because
I want it!
It seems to me that if everything is determined by previous actions, then there is no such thing as free will, or even any sort of will at all - just causality. If everything I do happens because of previous events in my life, and everything that happened in my life happened because of previous events in others lives, and so on and so forth, then everything can be traced back to an initial starting point, and the universe, and with it all human history and interaction, is nothing more than cause and effect. God says "Let there be light", and there is light; Elrohir reads The Republic, and becomes interested in philosophy. If there is nothing more to human "choice" than cause and effect, no matter how complex it is, then why even say that we have a "will" at all? We don't, we're no different from any natural phenomena that works itself out according to set rules.
But what needs to be shown is why a "will" must operate outside the system of cause and effect in order to be meaningful or free. I don't see why it should. Look at it like this: suppose that, as a matter of fact, determinism is true, and everything we do is wholly determined by preceding events. And now imagine another universe which is identical to ours in every way, except that determinism is false, and people's actions there are not wholly determined. The two universes are observationally identical: everyone makes the same choices in each, and precisely the same events occur in each. Now would there
really be any reason to prefer to live in one universe rather than the other? Exactly the same things happen in each one. People make the same decisions, and when questioned about them, they give the same answers. When asked whether they live in a deterministic universe or not, some people in each universe think they do and others in each universe think they do not. And in reality, we
do live in one of these universes - but no-one knows which one!
The point is that determinism and contra-causal free will are both, in a sense, null hypotheses. Each is completely consistent with all the evidence and they are observationally identical. Whichever one is true (or even if neither is), we can't tell, because it makes no practical or observational difference. That is not to say that they are identical hypotheses, of course; they are very different. But it makes no practical difference which is true, and therefore, I would say, no difference to morality.
We don't normally take such matters into consideration when thinking about moral responsibility in real life. Imagine a jury trying a defendant who obviously committed the crime. Will some members of the jury, who believe in determinism, argue that the defendant should be acquitted because his actions were wholly determined? And will others, who believe in contra-causal free will, argue that he should be convicted because they were
not wholly determined? Of course not - the argument will turn on whether the defendant intended to commit the crime, whether he knew what he was doing, whether he was forced to do it by someone else, and so on. And those matters aren't altered in the slightest by which of two fairly obscure metaphysical hypotheses is true.
But free will doesn't imply being able to change what exists. My free will is not compromised by my inability to fly - I can decide to want to levitate, and I can even try and make up my mind that I will, but I can't change reality to make it so I actually can. Nor can the prisoner make the prison walls go away through exercise of his free will - but he can want them to, or he can choose to not want them to. (Despite the fact that most would indeed want them to go away) I don't think that choice necessarily implies the ability to effect the desired result. It just implies that you can choose what result you desire.
I think that this is really a matter of terminology. It is true that you can
will something, in the sense of desire it, without being able to bring it about. But we would normally say that the
freedom to do something requires at least the ability to do it.
Everyone seems to be concerned that I'm somehow confusing fatalism and determinism, but I still can't grasp the difference. Maybe I'm just not smart enough to grasp it, I don't know, but I don't see how they are substantially different.
C is the result. A is the starting point, which leads to B, which ultimately results in C. Determinism says that A happens, therefore B happens, and therefore C happens, correct? If I am "fated" to change my mind because of what you say, then you will say it if determinism is true. If I am fated to not change my mind because you don't say it, then you won't say it, if determinism is true.
The thing I don't understand is why you say fatalism says that C will happen "despite the events that lead up to it". There's no despite. If A is determined, and B is determined, and C comes naturally and inevitably from B, then C is determined as well, and nothing could happen which could change that. It's like saying, in the simplistic bookshelf example I used earlier, that you chose to read Common Sense despite the fact that there were no other books on the bookshelf. Huh? It was the only book on the bookshelf, and since you had to choose one, you were "fated" to choose it. Both fatalism and determinism would say that the end result is inevitable because of previous things (C is inevitable because of B) and those things are inevitable because of the things before those (B is inevitable because of A), correct? Ultimately everything works towards an inevitable and unchanging end, so I don't see a difference between the two.
The simple answer is that you don't have to be a determinist to be a fatalist. Say that Oedipus is fated to marry Jocasta, because the gods have willed it. Whatever Oedipus does, the gods intervene to ensure that it brings him one step closer to marrying Jocasta, and eventually he does. Now that doesn't presuppose determinism; all it presupposes is that there is
something that, no matter what else happens, will bring it about that Oedipus marries Jocasta. But that could be simply another very powerful agent (the gods) which intervenes to ensure that what it wants is brought about. You don't need a metaphysical theory about the nature of causation to explain this.
Now if Oedipus is fated to marry Jocasta, it is impossible that he doesn't. Similarly, if determinism is true, then it is also impossible that Oedipus doesn't marry Jocasta (assuming he does), but in a different sense of "impossible". Basically, if Oedipus is
fated to marry Jocasta, this means that he marries her
in every possible world. Say that Oedipus moves to Athens. The gods (or whatever is intervening to ensure that he meets his fate) intervene to bring Jocasta to Athens too. In another possible world, Oedipus moves to Sparta. In that possible world, the gods intervene to bring Jocasta there. In every possible world, whatever Oedipus does, the gods see to it that it eventually results in his marriage to Jocasta. But on the other hand, if Oedipus is
determined to marry Jocasta, but not fated, that means only that it is inevitable in
this possible world, because the marriage is brought about (in part) by the actions that Oedipus actually takes. Suppose that, as a matter of fact, Oedipus meets Jocasta in Thebes and they get married. Their marriage is caused, in part, by Oedipus' earlier action in going to Thebes. Had Oedipus not gone to Thebes, he
wouldn't have met Jocasta and they wouldn't have got married at all. On the determinist hypothesis, there are thus many possible worlds in which Oedipus doesn't marry Jocasta - in contrast to the fatalist hypothesis, according to which there is none.
So if determinism is true, then doing otherwise than as you do is a
physical impossibility (in a broad sense of "physical"). If fatalism is true, then doing otherwise than as you do is a
modal impossibility.
This is why I said that, according to determinism, what happens does so
because (and only because) of what comes before. Had there been a different chain of preceding events, there would have been different outcomes. But according to fatalism, what happens does so
despite what comes before. Had there been a different chain of preceding events, there would still have been the same outcome.