Mind and Cosmos roundup

My series of posts on the critics of Thomas Nagel’s Mind and Cosmos has gotten a fair amount of attention.  Andrew Ferguson’s cover story on Nagel in The Weekly Standard, published when I was six posts into the series, kindly cited it as a “dazzling… tour de force rebutting Nagel’s critics.”  Now that the series is over it seems worthwhile gathering together the posts (along with some related materials) for easy future reference.

Nagel and his critics, Part I

Thomas Nagel’s new book Mind and Cosmos, which I reviewed favorably for First Things, has gotten some less favorable responses as well.  (See Brian Leiter and Michael Weisberg’s review in The Nation, Elliott Sober’s piece in Boston Review, and a blog post by Alva Noë.)  The criticism is unsurprising given the unconventional position staked out in the book, but the critics have tried to answer Nagel’s arguments and their remarks are themselves worthy of a response.  

I’ll examine these criticisms in some further posts in this series, but in this first installment I want briefly to state some criticisms of my own.  For while I think Mind and Cosmos is certainly philosophically important and interesting, it has some shortcomings, even if they are perhaps relatively minor given the book’s limited aims.

Ferguson on Nagel

In the cover story of the current issue of The Weekly Standard, Andrew Ferguson reviews the controversy generated by Thomas Nagel’s Mind and Cosmos.  Along the way, he kindly makes reference to what he calls my “dazzling six-part tour de force rebutting Nagel’s critics.”  For interested readers coming over from The Weekly Standard, here are some links to the articles to which Ferguson is referring, with brief descriptions of their contents.

EvolutionBlog needs better Nagel critics

EvolutionBlog’s Jason Rosenhouse tells us in a recent post that he hasn’t read philosopher Thomas Nagel’s Mind and Cosmos.  And it seems obvious enough from his remarks that he also hasn’t read the commentary of any of the professional philosophers and theologians who have written about Nagel sympathetically -- such as my own series of posts on Nagel and his critics, or Bill Vallicella’s, or Alvin Plantinga’s review of Nagel, or Alva Noë’s, or John Haldane’s, or William Carroll’s, or J. P. Moreland’s.  What he has read is a critical review of Nagel’s book written by a non-philosopher, and a couple of sympathetic journalistic pieces about Nagel and some of his defenders.  And on that basis he concludes that “Nagel needs better defenders.”

Nagel and his critics, Part III

In the previous installment in this series of posts on Thomas Nagel’s Mind and Cosmos, I looked at some objections to Nagel raised by Brian Leiter and Michael Weisberg.  I want now to turn to Elliot Sober’s review in Boston Review.  To his credit, and unlike Leiter and Weisberg, Sober is careful to acknowledge that:

Nagel’s main goal in this book is not to argue against materialistic reductionism, but to explore the consequences of its being false.  He has argued against the -ism elsewhere, and those who know their Nagel will be able to fill in the details.

Sober then goes on to offer a brief summary of the relevant positions Nagel has defended in earlier works like his articles “What Is It Like to Be a Bat?” and “The Psychophysical Nexus.”  As I emphasized in my previous post, keeping these earlier arguments in mind is crucial to giving the position Nagel develops in Mind and Cosmos a fair reading.  Unfortunately, however, having reminded his readers of these earlier arguments of Nagel’s, Sober immediately goes on to ignore them.

Nagel and his critics, Part IX

Returning to my series on the critics of Thomas Nagel’s Mind and Cosmos, let’s look at the recent Commonweal magazine symposium on the book.  The contributors are philosopher Gary Gutting, biologist Kenneth Miller, and physicist Stephen Barr.  I’ll remark on each contribution in turn.

Nagel and his critics, Part VII

Let’s return to our look at the critics of Thomas Nagel’s Mind and Cosmos.  New commentary on Nagel’s book continues to appear, and to some extent it repeats points made by earlier reviewers I’ve already responded to.  Here I want to say something about Mohan Matthen’s review in The Philosophers Magazine.  In particular, I want to address what Matthen says about the issue of whether conscious awareness could arise in a purely material cosmos.  (Matthen has also commented on Nagel’s book over at the New APPS blog, e.g. here.)

Nagel and his critics, Part V

Our look at the critics of Thomas Nagel’s Mind and Cosmos brings us now to philosopher of science John Dupré, whose review of the book appeared in Notre Dame Philosophical Reviews.  The review is pretty harsh.  At his kindest Dupré says he found the book “frustrating and unconvincing.”  Less kind is the remark that “as far as an attack that might concern evolutionists, they will feel, to borrow the fine phrase of former British minister, Dennis Healey, as if they had been savaged by a sheep.”

The remark is not only unkind but unjust.  At the beginning of his review, Dupré gives the impression that Nagel is attacking neo-Darwinian evolutionary biology per se.  Dupré writes: 

Darwinism, neo- or otherwise, is an account of the relations between living things past and present and of their ultimate origins, full of fascinating problems in detail, but beyond any serious doubt in general outline.  This lack of doubt derives not, as Nagel sometimes insinuates, from a prior commitment to a metaphysical view -- there are theistic Darwinists as well as atheistic, naturalists and supernaturalists -- but from overwhelming evidence from a variety of sources: biogeography, the fossil record, comparative physiology and genomics, and so on.  Nagel offers no arguments against any of this, and indeed states explicitly that he is not competent to do so.  His complaint is that there are some explanatory tasks that he thinks evolution should perform that he thinks it can't.

Man is Wolff to man

As a follow-up to my series of posts on the critics of Thomas Nagel’s Mind and Cosmos, let’s take a look at philosopher Robert Paul Wolff’s recent remarks about the book.  Wolff is not nasty, as some of the critics have been -- Nagel is Wolff’s “old friend and one-time student” -- but he is nevertheless as unfair to Nagel as some of them have been. 

Most of his post is not about Nagel at all, but consists of an anecdote about Edward O. Wilson and some remarks about the wealth of knowledge Wolff has found in the biology books he’s read.  The point is to illustrate how very meticulous good scientists can be, and how much they have discovered about the biological realm.  All well and good.  But so what?  What does that have to do with Nagel?

Nagel and his critics, Part II

Whereas my First Things review of Thomas Nagel’s Mind and Cosmos accentuated the positive, the first post in this series put forward some criticisms of the book.  Let’s turn now to the objections against Nagel raised by Brian Leiter and Michael Weisberg in their review in The Nation.  

First some stage setting is in order.  As I indicated in the previous post, Mind and Cosmos is mostly devoted to the positive task of spelling out what a non-materialist version of naturalism might look like.  The negative task of criticizing materialist forms of naturalism is carried out in only a relatively brief and sketchy way, and here Nagel is essentially relying on arguments he and others have developed at greater length elsewhere.  Especially relevant for present purposes is a line of argument Nagel put forward in what is perhaps his most famous piece of writing -- his widely reprinted 1974 article “What Is It Like to Be a Bat?” -- and developed further in later works like The View From Nowhere.

Haldane on Nagel and the Fifth Way

Next week I’ll be at the Thomistic Seminar organized by John Haldane.  Haldane’s article “Realism, Mind, and Evolution” appeared last year in the journal Philosophical Investigations.  Thomas Nagel’s book Mind and Cosmos is among the topics dealt with in the article.  As Haldane notes, Nagel entertains the possibility of a “non-materialist naturalist” position which:

would explain the emergence of sentient and then of rational beings on the basis of developmental processes directed towards their production.  That is to say, it postulates principles of self-organization in matter which lead from the physico-chemical level to the emergence of living things, which then are further directed by some immanent laws towards the development of consciousness, and thereafter to reason for the sake of coming to recognize value and act in response to it, a state of affairs which is itself a value, the good of rational life. (p. 107)

As the phrases “directed towards” and “immanent laws” indicate, what Nagel is speculating about is a return to a broadly Aristotelian notion of natural teleology.

Nagel and his critics, Part IV

Continuing our look at the critics of Thomas Nagel’s recent book Mind and Cosmos, we turn to philosopher Alva Noë’s very interesting remarks over at NPR’s 13.7: Cosmos & Culture blog.  Noë’s initial comments might seem broadly sympathetic to Nagel’s position.  He writes:

Science has produced no standard account of the origins of life.

We have a superb understanding of how we get biological variety from simple, living starting points. We can thank Darwin for that. And we know that life in its simplest forms is built up out of inorganic stuff. But we don't have any account of how life springs forth from the supposed primordial soup. This is an explanatory gap we have no idea how to bridge.

Science also lacks even a back-of-the-envelop [sic] concept explaining the emergence of consciousness from the behavior of mere matter. We have an elaborate understanding of the ways in which experience depends on neurobiology. But how consciousness arises out of the action of neurons, or how low-level chemical or atomic processes might explain why we are conscious — we haven't a clue.

We aren't even really sure what questions we should be asking.

These two explanatory gaps are strikingly similar… In both cases we have large-scale phenomena in view (life, consciousness) and an exquisitely detailed understanding of the low-level processes that sustain these phenomena (biochemistry, neuroscience, etc). But we lack any way of making sense of the idea that the higher-level phenomena just come down to, or consist of, what is going on at the lower level.

Philip Kitcher, bait-and-switcher

Here’s a thumbnail history of philosophy and science since the early modern period, in three stages.  First, the Aristotelian-Scholastic tradition had by the beginning of this period hammered out a conception of the natural world that is at the same time unified and radically anti-reductionist.  It is unified insofar as to all natural phenomena we can apply the theory of act and potency, the hylemorphic analysis of material substances, the doctrine of the four causes, and other components of Aristotelian philosophy of nature.  It is radically anti-reductionist insofar as it affirms that certain divisions in nature -- between the inorganic and the organic; between the merely “vegetative” or non-sentient forms of life and the sensory or animal forms; and between the merely sensory or animal forms of life and the distinctively rational or human form -- are nevertheless differences in kind rather than degree.

Nagel and his critics, Part VIII

Resuming our series on the serious critics of Thomas Nagel’s Mind and Cosmos, let’s turn to Simon Blackburn’s review in New Statesman from a few months back.  Blackburn’s review is negative, but it is not polemical; on the contrary, he allows that the book is “beautifully lucid, civilised, modest in tone and courageous in its scope” and even that there is “charm” to it.  Despite the review’s now somewhat notorious closing paragraph (more on which below) I think Blackburn is trying to be fair to Nagel.

Nagel and his critics, Part X

It’s time at long last to bring my series of posts on the critics of Thomas Nagel’s Mind and Cosmos to a close, before it becomes a lot longer than the book itself.  There isn’t, in any event, much more to say about the naturalist critics, most of whom raise objections similar to those on which I’ve already commented.  But I’ve long intended to finish up the series with a post on reviewers coming at Nagel’s book from the other, theistic direction.  So let’s turn to what John Haldane, William Carroll, Alvin Plantinga, and J. P. Moreland have said about Mind and Cosmos.

Though objecting to materialist forms of naturalism, Nagel agrees with his naturalist critics in rejecting theism.  All of the reviewers I will comment on in this post think he does so too glibly.  Naturally, I agree with them.  However, as longtime readers of this blog know, the arguments and ideas often lumped together under the “theism” label are by no means all of a piece.  Thomists and other Scholastics develop their conception of God and arguments for his existence on metaphysical foundations derived from Aristotelian and Neoplatonic philosophy.  But most contemporary philosophers of religion do not, relying instead on metaphysical assumptions deriving from the modern empiricist and rationalist traditions which defined themselves in opposition to Aristotelianism and Scholasticism.  This is a difference that makes a difference in the reviews of Nagel now under consideration.  Haldane and Carroll, like me, are Thomists, and their approach to Nagel reflects that fact.  But the objections raised by Moreland and Plantinga are to a significant extent different from the sort a Thomist would make.

Nagel on Nozick

Robert Nozick’s Anarchy, State, and Utopia has recently been reissued with a new Foreword by Thomas Nagel.  You can read the Foreword via Google books.  In it Nagel describes the situation in moral and political philosophy in analytic philosophy circles in the late 1960s.  A group of thinkers that included Nozick, Nagel, and other notables such as John Rawls and Judith Jarvis Thomson, who participated in a discussion group called the Society for Ethical and Legal Philosophy (SELF), reacted against certain then common tendencies.  First, as Nagel writes, they rejected the logical positivists’ “general skepticism about value judgments, interpreted as essentially subjective expressions of feeling.”  Second, they rejected utilitarianism in favor of “principles that limit the means that may be used to promote even the best ends.”

Nagel v Nietzsche: Dawn of Consciousness

While we’re on the subject of Nietzsche: The Will to Power, which is a collection of passages on a variety of subjects from Nietzsche’s notebooks, contains some interesting remarks on consciousness, sensory qualities, and related topics.  They invite a “compare and contrast” with ideas which, in contemporary philosophy, are perhaps most famously associated with Thomas Nagel.  In some ways, Nietzsche seems to anticipate and agree with points made by Nagel.  In other respects, they disagree radically.

Who wants to be an atheist?

Suppose something like Erich von Däniken’s Chariots of the Gods? hypothesis turned out to be true, and the God of the Bible was really an extraterrestrial who had impressed the Israelites with some high tech.  Would you conclude: “A ha!  Those atheists sure have egg on their faces now!  Turns out the Bible was right!  Well, basically right, anyway.  True, God’s nature isn’t exactly what we thought it was, but He does exist after all!”  Presumably not, no more than if the God of Exodus turned out to be Moses with an amplifier and some red fizzies he’d dumped into the Nile.  The correct conclusion to draw in either case would not be “God exists, but He wasn’t what He seemed” but rather “God does not exist, He only seemed to.”

Or suppose something like Frank Tipler’s Omega Point theory turned out to be correct and the universe is destined to evolve into a vastly powerful supercomputer (to which Tipler ascribes a kind of divinity).  If you had been inclined toward atheism, do you think you would now conclude: “Wow, turns out God does exist, or at least will exist someday!”  Or rather only: “Wow, so this really weird gigantic supercomputer will exist someday!  Cool.  But what does that have to do with God?”

Nagel and his critics, Part VI

We’ve been looking at the critics of Thomas Nagel’s recent book Mind and Cosmos.  Having examined the objections raised by Brian Leiter and Michael Weisberg, Elliott Sober, Alva Noë, and John Dupré, I want to turn now to some interesting remarks made by Eric Schliesser in a series of posts on Nagel over at the New APPS blog.  Schliesser’s comments concern, first, the way the scientific revolution is portrayed by Nagel’s critics, and second, the role the Principle of Sufficient Reason plays in Nagel’s book.  Most recently, in response to my own series of posts, Schliesser has also commented on the status of naturalism in contemporary philosophy.  Let’s look at each of these sets of remarks in turn.

Reading Rosenberg, Part X

And now we reach, at long last, the end of our detailed critical look at Alex Rosenberg’s The Atheist’s Guide to Reality.  In this final post I want to examine what Rosenberg has to say about a set of philosophical arguments he regards as “among the last serious challenges to scientism” (p. 228).  The arguments in question all entail that the realm of conscious experience -- what common sense says we know only “from inside” (p. 238), from a point of view “somewhere behind the eyes” (p. 222) -- cannot be accounted for in terms of neuroscience or physical science more generally.  In his treatment of these arguments, we get Rosenberg simultaneously at his best and at his worst.