If you can't buy the Maserati, what sense does it make to say that you are choosing it? You must be choosing it for something, or you can't truthfully be said to be choosing it at all. — Herg
Whenever I select or prefer one thing over another, I'm choosing it. Even though I can't implement my choice now, it is still a choice. If I were to win the lottery tomorrow, I would not go through the selection process again, I would simply implement my pre-existing choice. What am I choosing it for? The car I aspire to own.
In the context of our discussion, choosing L1 means choosing L1 in order to execute L1, and the presumption is that you have the power to execute L1, because if you don't, you cannot truthfully be said to be choosing L1 at all. — Herg
Choosing is an intentional act. It creates a disposition that will be physically implemented if possible, but even if the implementation isn't now possible, the state of the world has changed because I now have a disposition to act that I lacked before my choice. It is a common thing for people to first choose, and then await their chance.
The relevant point is not what seems to be true, but your unargued claim that it only seems to be true. — Dfpolis
We agree that it seems that executing L1 rather than L2 is in your power; the burden of proof is on you, not on me, to prove that both L1 and L2 actually are in your power. As for 'unargued', what do you imagine I have been doing since we started this conversation? — Herg
I've already shown how we know potentials. As for what you have been doing, as I recall, you have been criticizing the notion of free will, but have offered no reason to believe in determinism.
What an odd argument. Science is able to make reliable predictions precisely because, in cases such as the vinegar and baking soda case, there is no free will; the vinegar and the baking soda, when mixed together, have to make carbon dioxide because they have no choice in the matter. — Herg
Not quite. There is free will here. I may choose to mix them or not. Still, even if I choose not to mix them, the potential to produce carbon dioxide remains. This is just like choosing not to go to the store. Even though I choose to stay home, the potential to go remains.
Yes, free will does not enter into the reaction, but that's equally true of many choices once implementation begins. Once I step out of the plane door to begin a skydive, there is no going back.
That is how we know that making carbon dioxide in such a situation is possible. — Herg
No, that is not how we know that producing carbon dioxide is possible. We know acetic acid and sodium bicarbonate will react as they do because previous investigators have have freely chosen to investigate analogous cases. We have never examined, and no one could ever examine, the exact case before us, contextualized as it is. We must rely on reasoning by analogy.
Chemistry is the result of a long history of experiment and analysis in which we find analogies to the case at hand. The same is true of our knowledge of having incompatible options equally in our power.
So what would be the parallel situation when you are contemplating whether to stay at home or go to the store? It would have to be that we can only predict that you will go to the store, and therefore know that going to the store is possible for you, if you, like the vinegar and the baking soda, have no free will. — Herg
Let's look at the relation between prediction and potential. As I said earlier, the first way of knowing what is possible is to observe what is actual, for it could not be actual if it were not possible. Prediction is just a slight variation on this, in that a reliable prediction tells us what will become actual. Still, to make the prediction, we do not rely on the actuality of the predicted event, but on our knowledge, by analogy, of the determinate potential for that event. The question is, are all potentials determinate (determined to be actualized)? You seem to think that they are. I do not.
Consider our vinegar and baking soda. Do they always have the potential to produce carbon dioxide? I, and most chemists, would say they do. On you theory, they do not unless this vinegar and this baking soda are actually mixed to produce carbon dioxide at some point in the future. I say this because you seem to deny the second way of knowing potential -- by analogy with other cases. A potential that is never realized is, by definition, not a determinate potential -- it is not a potential that can be verified by a confirmed prediction, for
ex hypothesis, the mixing will never happen.
Premiss: On some previous occasions I have gone to the store, and on other previous occasions I have stayed at home.
Conclusion: Therefore on this occasion I have it in my power to either go to the store or stay at home.
This is an invalid argument. In order to have free will it is not sufficient for there to be some occasions when a potential action (e.g. going to the store) is actualised; it has to be the case that you have the power to realise the potential action in some particular case. In effect, you are confusing a type of action (going to the store) with a token action (going to the store on this occasion). — Herg
There are two questions here. First, do you or do you not think that potencies can be known by analogy? If you do, how strong does the evidentiary basis need to be before you are willing to rely on the analogy?
Clearly, if I only went to the store once, and it was a harrowing experience, it might not actually be in my power to go to store now. Perhaps I might freeze on the way, be eaten by a lion or be struck by a car. I am happy to concede that analogical reasoning lacks the reliability of deductive reasoning. I also stipulate that one case is a narrow basis for an analogical conclusion. Having said all that, few of us doubt it is in our power to go the store -- even if we have only gone once, and probably if we'd never gone before.
As Aristotle points out, we must not expect the same certitude in ethics as we do in other sciences. The subject matter is simply too complex. So, I grant that my argument is not deductively sound, but reasoning by analogy never is.
I do maintain that what applies to mixing vinegar and baking soda also applies to humans, in that given a certain potential for human action, it is simply a matter of physical law whether the potential is actualised. — Herg
This does not cut it. No law of nature precludes the mixing of vinegar and soda that will never in fact be mixed, and no physical law prevents me from going to the store even if I decide to stay home. In both cases, it is the decision of the agent that determines whether or not the potential is actualized.
There appears to be a physicalist subtext here, viz. the assumption that intentions are physically determined. No rational model supports this hypothesis, and reflection on the fundamental abstraction of natural science tells us that there cannot be a reduction of subjective intentional operations to objective physicality for the simple reason that natural science lacks the requisite concepts.
There is no reason to think that human intentions are determined by physics, and sound experimental studies to show that they are not. That being so, we can form intentions that are physically unrealizable, as my example of wanting to go 70 mph when traffic conditions prevented me from going more than 20 mph. When our choices physically constrained (unable to be implemented because of physical conditions), we can recognize it. Since there is no conflict between intentionality and realizability in deciding whether or not to go to the store, I have no reason to believe I am physically constrained.
Of course, one can engage in magical thinking or paranoia, believing that even though we do not see them, there are forces arrayed against us, but such conjectures are hardly parsimonious. It is more rational to say that when we are constrained by physical reality, we are generally aware of it and that when we are unaware of constraints, we are free to act as we will.
Actually, quantum theory says that all unobserved physical processes are fully deterministic. Unpredictability enters only when quantum systems are observed. — Dfpolis
Since this directly contradicts everything I have ever read about quantum physics, I have no comment to make, and I shall not raise quantum physics with you in the future. — Herg
In the course of acquiring my doctorate in theoretical physics I have probably studied quantum theory more deeply than you. If you like, I can supply you with references to standard texts.
We are free if we are not constrained. We are constrained when we want to do A, but are prevented. This happens many times, so we know how to recognise constraints when we see them. For example, yesterday I wanted to go 70mph or more on the I-15, but traffic constrained me from going more than 0-20 mph. When I decide whether or not to go to the store, I experience no such constraint. So, I am free to choose either. — Dfpolis
This appears to be compatibilism, and if that is your position, then we have been arguing at cross purposes. I am not a compatibilist. My understanding of free will is that it requires the ability to do otherwise than one actually does. — Herg
I'm not a standard compatibilist. I deny that free decisions are fully immanent in the state of the world before the existence of the agent. At the same time, I affirm that human decisions are adequately caused and mindful, not random. In other words, agents resolve prior indeterminism to fully determine their free decisions. So, before the agent acts, L1 and L2 are equally possible, but after the decision, only one is possible.
I reject the "
I could have done otherwise" formulation because I could not have done otherwise and be the person I am. Every decision we make forms who we are. I am the person formed, in part, by the history of my decisions.
Free will is necessary to explain the reality of moral responsibility -- which happens in the world. People know that they are responsible for actions they freely choose, — Dfpolis
No, they don't know this. They believe it, but belief is not knowledge, and therefore there is nothing requiring explanation. — Herg
I understand that you must say this to be consistent, but it makes no sense. How could we evolve to feel remorseful for what was, in fact, unavoidable? What a waste of biological resources that would be! If I am predetermined to do L1, how could any moral intuitions change this?
Intuitions of responsibility and remorse are actual phenomena -- "something requiring explanation," as you say. You may claim that free will is not the proper explanation, but that is not enough. The phenomena remain. You dislike the standard explanation, but offer nothing better.
So, there is a middle ground between fully determined and mindlessly random, viz. the result of mindful action on the part of a free agent. — Dfpolis
This is just speculation, because you have not established grounds for believing that minds complete the determination of actions. — Herg
It is a matter of experience and philosophic reflection since Aristotle's discussion of
proairesis that humans reflect to determine which of various possible means best reflect their values in effecting their ends. Are you denying that you have weighted, perhaps iteratively, various means of advancing your life? And doesn't such reflection reduce many possible means to the one plan you actually choose to implement?