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This is a follow-up to my last post on the question of whether there are phenomena that theism can account for but which naturalism cannot. The Cosmological Argument can be thought of as an argument not just for the existence of God, but for the claim that a theistic worldview has the resources to explain something that a naturalistic worldview cannot explain (in its simplest form, this something is the fact that there exists something rather than nothing). I don’t think this is so and I am going to try to explain why.
Here is the Kalam cosmological argument.
(1) Everything that begins to exist has a cause.
(2) The Universe began to exist.
(3) The universe has a cause.
First, premise (1) is odd. Why say that everything that begins to exist has a cause, rather than everything, full stop? The answer is that the attempt to use the alternative,
(1*) Everything that exists has a cause
has an obvious and unfortunate consequence for theism: it implies that it is false. Since God is supposed to be uncaused, (1*) cannot be true (if (1*) is true, then there is no uncaused God, so theism is false). So, we get (1) as a means of avoiding begging the question against theism.
It is important to see that (1) depends upon a more general principle, the principle of sufficient reason (PSR) [I am just going to assume here that if PSR is false, then for that very reason, we should be skeptical of (1). But I would be happy to pursue this if anyone is interested]. PSR says (in one of its simpler formulations) that for everything that exists, there is a reason that it exists, in other words, there is an explanation for the existence of everything. Now, making the reasonable inference that, in the material realm, the explanation for the existence of anything will be in terms of causes, we can assume that if the PSR is true, everything that exists has a cause. But this supports (1*) doesn’t it? Well, the problem, again, is that this inference only works if we ignore the possibility that there exist non-material things. The explanation for their existence might not be in terms of causes. So we shouldn’t assume that everything that exists has a cause. However, certainly material things have causes, at least as far as we know. And, as far as we know, every material thing had a beginning. Roughly then, (there are a few other considerations that I will ignore here), that is one way of getting to (1) from the PSR.
But the PSR does imply that everything that exists has an explanation. So while it might be unreasonable to ask what the cause of God is (since, if he exists, he is immaterial, and so might not have a cause), that does not mean that it is unreasonable to ask for the explanation of God. So, if the PSR is true, then, if God exists, there is an explanation for the existence of God.
We’ve gotten a little bit side-tracked, so let’s get back to the main thread of the argument. There are actually two points to be made here. First, even if the CA is a sound argument, and even if it is true that God created the universe, none of that tells us what the explanation for the universe is. That is, saying that God did does not explain how it was done. If there is nothing more to the explanation that the claim that God did it, then what is the difference between saying that God did it and saying that it was magic?
The second point is that since the CA relies on the PSR, there is no reason to think that it is only the universe’s existence that presents a fundamental mystery that cries out for explanation. If the question is, “why is there something rather than nothing?” then theists should ask why there is a God.
So, what I am saying here is this: If the problem that theists point to is that there is no naturalistic account of the existence of the universe (or, even more broadly, why there exists something rather than nothing), then the theist does not have an answer to this problem either. The naturalist *might* always have to assume the existence of something in order to provide explanations, but so must the theist. The theist must fall back on the existence of God, something that is not explained by theism. Now, of course I am aware that theists have tried to avoid this. There is a long theological history to the claim that God contains the reason for his own existence. But, as I argued recently, that claim, even if it makes sense and it is true, does not tell what this reason is. The claim that God exists a se tells us nothing more than that there is a reason for God’s existence and that it is contained in his nature; it does not tell us what the reason is.
So, it is false that theism has an explanation for the existence of the universe. Thus, the argument that says that theism is to be preferred over atheism because the former can account for something that the latter cannot is a bad argument since the premise is false.