Problem 2: (A)causal confusion
As we discussed in the last post, some libertarians argue that
- A volitional act need have no prior cause and
- A volitional act is not arbitrary ("random").
This conjunction appears impossible. However, we are told, its possibility is demonstrated by way of example:
- Divine willing has no prior cause but is not arbitrary.
I am not convinced. We can speak of three possible causal situations that might pertain to whatever exists:
- Whatever exists may be caused to exist by another,
- Whatever exists may be caused to exist by itself, or
- Whatever exists may not be caused to exist.
It seems to me that the analogy to divine will rests upon a failure to distinguish between the latter two senses of what it means to be without prior cause. The former is proper only to God and cannot describe human willing. This leaves the latter, which cannot evade the charge of arbitrariness.
"Whatever exists may be caused to exist by another."
This is the standard sense in which we think of causality. The bulb lights because of the character of its filament and the introduction of electricity; electricity is introduced because of the conductivity of wires, the presence of a power plant, and the flipping of a light switch, the light switch is triggered because of the design of its motion sensor and the fact that a cat ran through the yard, etc.
Note that this process can be extended repeatedly -- the running of the cat, for example, is explained in part by its biological constitution, which is explained by its genetic makeup, which is explained by its evolutionary history, which is explained by the composition of the planet earth, which is explained by certain cosmological facts, etc., etc.
This causal situation is denied to God, who is not caused to be by something other than God. Libertarians, however, also deny this causal situation to the human will. If the libertarian theory is right, an act of human will must fall into one of the other two categories.
The first horn of the dilemma: "whatever exists may be caused to exist by itself."
This is the causal situation that is affirmed of the divine. God is not caused by another; rather, God is self-caused, the "self-moved mover." If our own willing is analogous to God's willing, it must be self-caused. This, however, is problematic.
- The assertion that human beings are self-caused stands in direct contradiction to an extremely basic element of Christianity, namely, the idea that we are beings created by God. On this view, we are creatures, God is the Creator, and we are dependent upon God for our existence. God is the cause of all that is, including human beings. Of course, it could be that Christianity is wrong as such, or Christianity could be revised to deny the creator/creature relationship to God and humans. Nevertheless, this seems like a difficult position to hold.
- That which is self-caused is necessary, rather than contingent, being. To be contingent is to have dependent existence, to account for one's existence in relation to another. That which is self-caused, however, has its existence accounted for only in itself; there is nothing external by which its existence or non-existence could be stipulated. To be self-caused, then, is to be necessary. It seems difficult, however, to think of myself as having a strictly necessary existence. I don't think that I have always existed, co-eternal with God. Likewise, it would seem that the specifics of my existence (the particular ways in which I exist, such as my dispositions and decisions) are also contingently determined in relation to external events, rather than necessary manifestations of a self-caused nature.
- In that which is self-caused, essence entails existence. The existence of whatever is self-caused can only be accounted for by its essence or nature. But if the nature of a thing entails its existence, it is never not the case that this is so, and thus, again, it must exist necessarily. But as we said above, the concept that I exist necessarily is difficult to affirm.
- That which is self-caused is probably not libertarian. To be self-caused is to follow the necessity of one's nature. For a libertarian, who views contingent causation as incompatible with his version of "freedom," the necessary causation following from the nature of a thing would likely not appear any more "free." If it is objectionable that my actions are determined directly and invariably by the enormous set of factors that have produced me, I imagine that it would be likewise objectionable if my actions are determined directly and invariably by my own nature. (Of course, I have a hard time understanding the libertarian concept of "freedom," which does not make sense to me, so I could be mistaken.)
For all of these reasons, it would be difficult to affirm that the human will is self-caused.
The second horn of the dilemma: "whatever exists may not be caused to exist."
This, it is important to note, is not affirmed of the divine. In traditional Christianity, God does not just pop into being one day with no cause; rather, as we said above, God is self-caused. But if the libertarian denies that human decisions are caused by another, and if we are not eager to accept that they are self-caused, then we are left with the concept that they are without cause. Again, this is problematic.
- First, it is not clear what it would mean for something to be without any cause at all. We know of nothing, whether created or uncreated, that simply has no cause (potentially excepting, as we are considering, libertarian will). Such a thing would not be necessary (self-caused), but neither would it even be contingent (caused by another). The existence of such a thing would not depend upon anything. We could not ask, "why does it exist," or even, "why did it come into existence now, rather than another time," for such questions only apply to things for which an account can be given. It cannot be understood why this thing exists rather than something else, for there is simply no reason. It is not even "magical," for magic has a structure and a magician. Such issues could be proliferated indefinitely; ultimately, the point is that I am not sure that the idea of something existing without any cause is even intelligible.
- The fundamental theistic question, "why is there something, rather than nothing," is eliminated by the notion that things can simply come into being with no cause at all. It is difficult to see how Christian theology could proceed in light of such a doctrine. This does not make the proposal automatically wrong, of course, but it makes it a difficult one to swallow.
- That which is uncaused is uncreated, which is problematic in the ways outlined above.
- If something is uncaused, then it is arbitrary in the strictest sense. It cannot be occasioned by anything. If my decision is uncaused, for example, there can be no reason for it to have occurred now, rather than during the Stone Age, or at the dawn of the universe. Likewise, there can be no reason for it to be this decision rather than some other one. It cannot depend upon anything at all; it cannot be informed by anything about the situation in which it occurs; it is strictly and entirely arbitrary.
- Finally, if something is uncaused, it cannot in any sense be "mine," for it neither comes from me, nor depends upon me, nor adheres within me. It comes not only from outside me, but from outside the entire created universe, even outside of God.
Thus, it seems equally difficult to affirm that the human will simply has no cause at all.
Conclusion
A person could try to wriggle out of the dilemma by saying, "my decision does have its cause in another, namely me; it is just that there is nothing prior to me that can account for it." But this is to simply push the problem back a step, not to eliminate it, for the same question must be asked of "you": do "you," understood as the-thing-making-this-decision, have your cause in another? This seems to be what the libertarian denies in suggesting that there is no causal account of a decision beyond "me." If the answer is positive, then we are not libertarians and there is no difficulty, for decisions, like everything else that we encounter in this world, have their causes, which have prior causes, stretching back indefinitely. If the answer is indeed negative, though, then we are once again caught between the two horns of the dilemma.
Thus, one who rejects that our decisions are ultimately caused by another is therefore faced with a difficult choice, both alternatives of which seem unacceptable: either they are self-caused, and therefore necessary, or they are without cause, and therefore not even contingent.
The way out of the dilemma, of course, is to deny the libertarian position and affirm the more typical view of human will that sees it as participating in the created order of which it is a part.