Tag Archives: Plantinga

The Argument from Personal Misunderstanding

AF5WTAI seem to have gotten a bit sidetracked from Mackie’s “Miracle of Theism”. The quick refresher is that Mackie had been discussing the problem of evil, and that he is now turning to Alvin Plantinga’s famous free will defense.

And, for those unfamiliar with it, the best summary of the free will defense I’ve ever encountered is in a short video.

Mackie counters Plantinga by attacking the idea that it is logically necessary that people have something wrong with our “essences”. As Plantinga himself points out in his response, he was never talking about essences. But this isn’t the key issue.

Mackie keeps insisting that it is logically possible that even a finite person could always choose to do the right thing, but this simply misses the point. What he needs to show isn’t that this is logically possible, but that it is logically compatible with the other requirements facing God (such as more that a few people in existence, spiritual growth, etc). He doesn’t even address this response.

But, personally, I’m more concerned about the fact he hasn’t even shown that this really is logically possible. He’s simply claimed this, but not taken a terribly close look at the situation.

That is, he seems to have a very sloppy understanding of morality. “Choosing to do the right thing”, after all, is pretty misleading. As finite creatures, we are all incomplete; none of us understand all spiritual truths perfectly. Hence, nothing we do, say, or think is ever purely good (or purely evil). While we are certainly capable of being more or less good, I don’t see how it is possible to be perfectly good while still being finite.

And any moment in which one isn’t being perfectly, absolutely, completely good is a moment where one isn’t “choosing the good” in the sense that Mackie needs it to be for his argument to work.

Of course, Plantinga and others have added that there are feasibility issues, even for an omnipotent being, that exist above and beyond this. Mackie is free to believe that these issues will someday be solved, but he has not solved them.

Mackie then goes on to discuss the idea that God may not know what actions people will take until they are taken. I’ll let this alone, as I reject that view. Rather, I’ll skip to his conclusion. First, he claims that every defense against the problem of evil has failed. Again, he is free to believe what he likes, but an unsupported assertion of a claim that doesn’t actually counter Plantinga’s argument is hardly a reason to think this.

And, second, I use the phrase “believe what he likes” advisedly. Mackie goes on to say that, while he admits that there are forms of theism that could get around this attack, the argument is practically useful because “each of the changes that would make theism more coherent would also do away with some of its attraction”.

This is where we begin to see something less objective than a detached search for the truth. None of us really are detached, of course. But (as overtures of objectivity are often made in such debates) it needs to be pointed out that Mackie is, like any of us seeking to “win converts”–seeking to dissuade people from a position he agrees is coherent.

And, personally, I find the more coherent versions of theism more attractive (not the least because I find coherence attractive). Those who seek to “refute” theism this way can only do so by arbitrarily demanding that we ignore the best (and most attractive) forms of it.

I don’t, by the way, think one should judge Mackie too harshly for this. He’s only doing what any one of us would do. I think it would would be much more helpful if all sides would simply admit this–that we all have emotional motivations.

Pretending that personal zeal and trendy memes are the same as the results of objective research is, after all, one of my chief complaints with the New Atheists.


Missing the Point

Dart arrows missing targetAfter discussing Anslem’s ontological argument, Mackie moves to Alvin Plantinga’s version. Personally, I’ve always had a personal distrust of ontological arguments; proving notions based on abstract reasoning alone raises a red flag for me. Still, I’m having an increasingly hard time dismissing them as I read. In fact, one of the ironies of my current situation is that Mackie’s book has done more to persuade me of the truth of these arguments than to put me off them.

What I am convinced of, and I think this is undeniable, is that God’s existence is either logically necessary or impossible. It simply cannot be the case that God could have existed, but didn’t–or could not have existed, but did. I think this is clear that necessary existence is part of what it means to be God. But the implication, then, is this:

If God is either necessary or impossible, then either there is a logical contradiction in the idea of God, or there is an ontological argument that works.

Mackie argues that Plantinga’s version doesn’t work, but seems to rest his argument on a misunderstanding of the argument. He spends quite a bit of time arguing against the idea of “world-indexed properties”. But, by my reading, Plantinga’s argument doesn’t depend on such properties (this was, indeed, part of Plantinga’s own response to the book). As such, he’s simply given us a very long red herring argument.

Where Mackie has a point (even as I disagree) is in the idea that it is more parsimonious to claim that God does not exist than that he does. After all, this has always been the atheist’s best line of attack.

Still, there’s a very reasonable response.

It is only more parsimonious for the question of God in isolation. Given the number of brute facts, and downright self-contradictions, that seem to stem from modern “parsimony” about non-physical things, this attack isn’t nearly so strong as it seems at first blush.

In fact, I’d say that theism is much more parsimonious, at the end of the day, than any other view I know.

But Mackie has one other challenge: the suggestion that we remain undecided on this position.

But, whatever the logical merits of this approach, it is simply not livable. Each of us has to live either as if God exists, or as if he does not. One can be actively seeking, and open to change, but neutrality on fundamental questions isn’t an option to anyone who has to live and act in the real world.

This is why I find this wrong-headed from the start. Really, it relies on a slight of hand. Though I don’t doubt Mackie’s sincerity, the functional result is deceptive. A myth of neutrality often persuades people to live as functional atheists without actually establishing atheism as the most reasonable position.

That, and Mackie will need to have done more than remain neutral on this point for one of his other refutations to work, as we shall see next.