Mad dogs and eliminativists

As an epilogue to my critique of Alex Rosenberg’s paper “Eliminativism without Tears,” let’s take a brief look at Rosenberg’s recent interview at 3:AM Magazine.  The interviewer styles Rosenberg “the mad dog naturalist.”  So perhaps in his bid to popularize eliminative materialism, Rosenberg could put out a “Weird Al” style parody of the old Noël Coward song.  Or maybe he and fellow eliminativist Paul Churchland could do a re-make of ZZ Top’s classic Eliminator album.  Don’t know if they’re sharp-dressed men, but they’ve got the beards.  (I can see the video now: The guys, electric guitars swaying in unison and perhaps assisted by Pat Churchland in a big 80s hairdo, set straight some benighted young grad student who still thinks the propositional attitudes are worth salvaging.  Romance ensues, as does a job at a Leiter-ranked philosophy department…)

Eliminativism without truth, Part II

We’re looking at Alex Rosenberg’s attempt to defend eliminative materialism from the charge of incoherence in his paper “Eliminativism without Tears.”  Having set out some background ideas in an earlier post, let’s turn to the essay itself.  It has four main parts: two devoted to arguments for eliminativism, and two devoted to responses to the charge of incoherence.  I’ll consider each in turn.

Eliminativism without truth, Part I

Suppose you hold that a good scientific explanation should make no reference to teleology, final causality, purpose, directedness-toward-an-end, or the like as an inherent and irreducible feature of the natural order.  And suppose you hold that what is real is only what science tells us is real.  Then you are at least implicitly committed to denying that even human purposes or ends are real, and also to denying that the intentionality of thought and the semantic content of speech and writing are real.  Scientism, in short, entails a radical eliminativism.  Alex Rosenberg and I agree on that much -- he defends this thesis in The Atheist’s Guide to Reality and I defend it in The Last Superstition.  Where we differ is over the lesson to be drawn from this thesis.  Rosenberg holds that scientism is true, so that eliminativism must be true as well.  I maintain that eliminativism is incoherent, and constitutes a reductio ad absurdum of the scientism that leads to it.  I responded to Rosenberg at length in a series of posts on his book.

In his paper “Eliminativism without Tears,” Rosenberg attempts in a more systematic way than he has elsewhere to respond to the charge of incoherence.  Rosenberg kindly sent me this paper some time ago, and I note that it is now available online.

Hart stopping

In the August/September issue of First Things, David Bentley Hart gives us what he promises is his last word on the controversy generated by his article on natural law in the March issue.  I responded to Hart’s original piece in “A Christian Hart, a Humean Head,” posted at the First Things website (and cross-posted here).  Hart replied to my criticisms in a follow-up article in the May issue of First Things.  I responded to that in “Sheer Hart Attack,” posted at Public Discourse.  Hart also replied to several other critics in the Letters section of the May First Things, and I commented on his remarks in a further post entitled “Discerning the thoughts and intents of Hart.”  What follows is a reply to his latest piece.

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 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 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.

Commonweal on Nagel

Commonweal magazine has published a symposium on Thomas Nagel’s Mind and Cosmos, to which physicist Stephen Barr, biologist Kenneth Miller, and philosopher Gary Gutting have contributed.  It’s temporarily available for free on the Commonweal website, here. 

The theology of Prometheus

I’m afraid I’m very much a latecomer to the pretentious commentary party vis-à-vis Ridley Scott’s Prometheus, since I only saw the flick after it came out on Blu-ray and even then have been too preoccupied with other things of late to comment.  But it’s better than the reviews led me to believe, and worth a philosophical blog post.  Plus, I need to do something to keep this site from becoming The Official Thomas Nagel and David Bentley Hart Commentary Page and Message Boards.

Around the web

Metaphysician E. J. Lowe discusses ontology, physics, Locke, Aristotle, logic, laws of nature, potency and act, dualism, science fiction, and other matters in an interview at 3:AM Magazine. 

Over at The Montreal Review, Alex Sztuden responds to Leiter and Weisberg’s review of Thomas Nagel’s Mind and Cosmos.

Frank Beckwith replies to David Bentley Hart on natural law in The Catholic Thing.

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.

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 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.)

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.

Noë on the origin of life etc.

UC Berkeley philosopher (and atheist) Alva Noë is, as we saw not too long ago, among the more perceptive and interesting critics of Thomas Nagel’s Mind and Cosmos.  In a recent brief follow-up post, Noë revisits the controversy over Nagel’s book, focusing on the question of the origin of life.  Endorsing some remarks made by philosopher of biology Peter Godfrey-Smith, Noë holds that while we have a good idea of how species originate, there is no plausible existing scientific explanation of how life arose in the first place:

This is probably not, I would say, due to the fact that the relevant events happened a long time ago.  Our problem isn't merely historical in nature, that is.  If that were all that was at stake, then we might expect that, now at least, we would be able to make life in a test tube.  But we can't do that.  We don't know how.

Schliesser on the Evolutionary Argument against Naturalism

I commented recently on the remarks about Thomas Nagel’s Mind and Cosmos made by Eric Schliesser over at the New APPS blog.  Schliesser has now posted an interesting set of objections to Alvin Plantinga’s “Evolutionary Argument against Naturalism” (EAAN), which features in Nagel’s book.  Schliesser’s latest comments illustrate, I think, how very far one must move away from what Wilfred Sellars called the “manifest image” in order to try to respond to the most powerful objections to naturalism -- and how the result threatens naturalism with incoherence (as it does with Alex Rosenberg’s more extreme position).

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.

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.

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.

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.