Jesse Rouse 2008-02-03
2 of 2 people found the following review helpful:
This book served as my introduction to the mind/body problem, and his introductory material (the first 100 pages or so) was actually quite decent. He explained the issues, gave the differing views on the issues, and was rather comprehensive and fair for the most part. The only complaints I had about that section were (1) that he often gave the reader the bare minimum of information and left the reader to figure out what it meant instead of giving a clear example of what he was saying (the issues he was discussing were ofter very difficult to understand, and I would have to read a section and sit and think about it for five minutes to figure out what exactly he was saying, when he could easily have given examples to significantly speed up the process), and (2) I think he unfairly dismissed dualism without really giving many reasons why it was not correct. I agree that there are significant problems with dualism, but I think his treatment of it was far too brief and not especially fair.
The rest of the book, however, was not so great. The position he takes is called non-reductive physicalism. This means that he thinks the mind is nothing but physical processes but is not reducuble to physical processes. The whole rest of the book is about how this theory explains things like consciousness, free will, etc. The two main problems I had with this part of the book are far more significant than those I had with the first part. They are (1) the failure to adequately explain how a mind which is entirely physical processes can escape being reduced to physical processes, and (2) his section on free will.
The reason he wishes to escape reducing the mind to physical processes is that if we do that we are left with determinism. Everything we think, and thus do, is then reduced to the outcome of physical processes leaving no room for free will. The problem is that Searle offers no legitimate explanation of how we escape reductionism if the mind is "just physical processes" (that is exactlty how Searly says it). Other non-reductive physicalists like Nancy Murphy do go into detailed explanations (which I find unconvincing as well), but Searle just passes it off as plausable then moves on, effectively skirting the issue by changing the topic to how this theory explains mental phenomenon like free will.
The problem with that is that when he gets to free will, he is forced to admit that his system does not seem able to account for free will, so he calls it a mystery and appeals to quantum mechanics. He acknowledges that randomness does not amount to freedom (which many who advocate quantum mechanics as the basis of free will fail to acknowledge, so at least it's a step forward), but he is forced to look there for help because, as he notes, it is the only non-determined field of science we know about. Since he has already decided that nothing non-physical can be a part of our minds, he is left with no choice but a listless appeal to quantum mechanics, though he openly admits he has no idea how this solves anything and that it does not really seem to work. Perhaps this is a good indication that his starting point of physicalism is lacking.
In short, this is a good introduction to the mind/brain topic, but his own ideas about the subject are largely unconvincing and seem to me to be rather lacking in evidence. That said, I would recommend it to anyone wishing to learn about these issues, as the non-redcutive physicalism is a growing position you would do well to know about and understand, and Searle presents the one of the most comprehensive discussions of that position in this book. He also presents an excellent critique of reductionist philosophies of mind, from behaviorism to functionalism to the newer theories about how the mind is to brain as computer program is to hardware.
Overall grade: B
Edit (April 11th): In the few months since I read this book, I have actually come to adopt Searle's position (or something very close to it). A number of other sources played in my "conversion," making me wonder whether this really is a good introduction to the topic or something which should be read after a working knowledge of competing positions is already known. It could be that Searle's position was so radically different than my own that I would have rejected it no matter how it was first presented to me, or it could be that Searle's presentation of it was just not as convincing as the positions of Nancy Murphy and Kevin Corcoran in The Search for the Soul (a survey of four views of the soul [or lack thereof] from a Christian perspective), which played a significant role in my shift of positions.