Craig is not one of the clever ones. He’s one of the glib, superficial ones, and he impresses a lot of superficial people. Here’s one of his latest, the Argument for God from Intentionality.
God is the best explanation of intentional states of consciousness in the world. Philosophers are puzzled by states of intentionality. Intentionality is the property of being about something or of something. It’s signifies the object directedness of our thoughts.
For example, I can think about my summer vacation or I can think of my wife. No physical object has this sort of intentionality. A chair or a stone or a glob of tissue like the one like the brain is not about or of something else. Only mental states or states of consciousness are about other things. As a materialist, Dr. Rosenberg [the interlocutor] recognizes that and so concludes that on atheism there really are no intentional states.
Dr. Rosenberg boldly claims that we never really think about anything. But this seems incredible. Obviously I am thinking about Dr. Rosenberg’s argument. This seems to me to be a reductio ad absurdum of atheism. By contrast, on theism because God is a mind it’s hardly surprising that there should be finite minds. Thus intentional states fit comfortably into a theistic worldview.
So we may argue:
1. If God did not exist, [then] intentional states of consciousness would not exist.
2. But intentional states of consciousness do exist!
3. Therefore, God exists.
The link is to a philosopher’s debunking, pointing out the obvious fallacies and some of the more subtle arguments against it from serious, non-superficial philosophers. It doesn’t bring up the first counter-argument that came to my mind, though.
We know what the physical nature of intentional states are; they are patterns of electrical activity in a network of cells with specific physical properties. We don’t know how to read that pattern precisely, but we can measure and observe them: stick someone in an MRI and ask them to think about different things or engage in different cognitive tasks, and presto, blood flows shift in the brain and different areas light up with different levels of activity. These are properties not seen in chairs or stones, which lack the neuronal substrates that generate these patterns.
Intentional states are ultimately entirely physical states; they are dependent on organized brain matter burning energy actively and responsively in different patterns. There is no evidence that they require supernatural input, so Craig’s first premise that these could not exist without supernatural input is not demonstrated.