Monday, March 30, 2009

Armchair Sociology 101, part 2: Further Ruminations on The Two Models

(by guest blogger Manuel Vargas)

Belated introduction

Last post was my first post as a guest blogger here at The Splintered Mind, and I realized I neglected to introduce myself. Anyway, I’m Manuel Vargas, and my day job is philosophizing at the University of San Francisco. I mainly publish papers on issues connected to agency, responsibility, moral psychology, and various topics in Latin American philosophy. In my heart of hearts, though, I am an armchair sociologist of philosophy. Since I can’t blog much about that at my usual place of bloggery (the Garden of Forking Paths), I’m doing it here for the next few weeks.

Armchair Sociology 101, part 2: Further Ruminations on The Two Models

In my previous post I discussed two models of philosophical production, a traditional one emphasizing cautious, precise, and highly elaborated ideas, and a newer (to philosophy) model emphasizing novelty as paramount with a somewhat downgraded (but not rejected) emphasis on caution, precision, and conceptual elaboration. For better or for worse, my bet is we’ll see the second, newer model (and variants that lean in that direction) proliferate over the next couple of decades, making up a larger and larger chunk of how philosophy gets done in the English-speaking world. I can think of several reasons, which I mention in the Underblog. My main interest, though, is to think about the consequences of this trajectory if indeed it is the case that this approach will proliferate.

I’m inclined to think that we all benefit from the presence of a mixture of varied strategies in the general philosophical population. However, I wonder whether what we’re likely to see is (1) fragmentation across communities that reflect judgments about these different models, followed by (2) diminished interaction across these communities, followed by (3) greater entrenchment of the newer model across the profession, followed by (4) further fragmentation of subfields developed internal to those fields working on the newer model.

As some of the commentators noted on that earlier post, something like this seems to be what happens in the sciences, and one might think it is simply the general trajectory of fields. But there is also a temptation (also expressed in the comments in the earlier post— go read ‘em!) to think that philosophy should be different, more synoptic, more concerned with how everything hangs together. It is harder to see how you do that if the discipline suffers from field fragmentation of the sort I’m gesturing at.

At any rate, what, if anything follows from all of this? Should awareness of this trajectory affect how we encourage graduate students to think about their own publication strategies? Does the traditional way of doing things need defense? Is so, how? If not, why not?

Thursday, March 26, 2009

Perplexities of Consciousness, Ch. 3: Galton's Other Folly

... is now up in draft on my homepage.

Here's an abstract:

In the 1870s, Francis Galton asked people to describe their visual imagery experiences when recalling their breakfast table as they sat at it in that morning. Apparently ordinary people gave very different reports, spanning the full range from claiming that imagery was entirely unknown to them to saying that their imagery was as clear and detailed, or even more so, than ordinary vision. Since then, a long history of attempts to correlate differences in subjective report of imagery experience with performance on presumably imagery-facilitated tasks (like mental rotation, mental unfolding, visual memory, and visual creativity) has largely failed. Given the ease with which most people can be brought to uncertainty about the character of their imagery experience (its richness of detail, its stability, its coloration, etc.), and given the history of debates in psychology and philosophy about the phenomenal character of imagery (e.g., the "imageless thought" debate, the Locke-Berkeley debate about abstract ideas), it shouldn't be too surprising that people's reports about their imagery experience don't reliably reflect real differences in their underlying experience. Hence, the disaster of Galton's subjective methodology.
As always, comments warmly welcomed (here on this post or by email). The title and framing around Galton are new. (Previously it was "How Well Do You Know Your Own Visual Imagery?", without section i and with less focus on Galton throughout.) I'm inclined, today at least, to think the shift makes the chapter livelier; but I could easily see changing my mind about that.

Wednesday, March 25, 2009

Armchair Sociology of the Profession 101: Two Models of Philosophical Production

(by guest blogger Manuel Vargas)

I take it that for any one reading this blog, it is not news that philosophical publication matters for disciplinary reputation. What I think is less widely recognized is how there are increasingly two main models around which philosophers organize their own writing, and what consequences this might have for individuals and the profession as a whole.

(By identifying two models I do not meant to suggest that these are the only models, that there are no mixed models, or that there are not differences internal to these models, broadly conceived. As seems necessary, imagine the relevant qualifications in what follows.)

The older, traditional model is one that aspires to produce only careful, precisely worked out, and exhaustively defended works. Doing this takes time, and on this model, quantity of production is not nearly so important as quality of production. Indeed, on this model, too much publication suggests a kind of shallowness, or a failure to carefully think things through.

In recent years, an alternative model has emerged in various parts of the profession, especially those that interact with the cognitive and social sciences. On this model, it remains a virtuous to produce careful, precise, and exhaustively defended works. But these virtues are not paramount. Instead, what is paramount is the presentation of a promising new idea, a novel argument, or a relevant datum that does not already have currency in the discussion.

Philosophers working under the newer model tend to publish more frequently. It is a model where one can justify a publication by presenting the new idea even if the presentation of it is not maximally careful, precise, or exhaustively defended. Moreover, to the extent that one’s interlocutors also operate with this model, one needn’t be especially worried about the old virtues: if the idea is a good one, the marketplace of ideas will do much of the precisifying, along with the articulation of objections and replies. It is a model that relies on something like a division of cognitive labor, where the marketplace of ideas does much of the work that old-model philosophers regard as a prerequisite to publication. Of course, a mangled presentation never benefits any idea, so the old virtues are never completely abandoned even on the new model. They are merely downgraded, and (partly) off-loaded.

There are I think, lots of things to say about how this plays out in the life of the profession. It is certainly relevant in hiring, tenure, and promotion, and in how subsets of the philosophical community regard one another. Philosophers working under the older model tend to regard the work of philosophers on the younger model as superficial, ill-conceived, not very philosophically rigorous. Philosophers on the newer model tend to regard philosophers on the older model as (let’s be honest) stuffy, remarkably unproductive (especially if at a Famous Institution), and oftentimes disconnected from the larger field or profession.

What I wonder is if, over time, there is any difference in useful philosophical production generated by these models? Take two communities, one working on the old model and one working on the new model. Add a hundred years. I wonder which community will, after a hundred years, have made more philosophical progress by whatever standard you measure such things?

Friday, March 20, 2009

Political Scientists and Political Philosophers Aren't More Likely to Show Extreme Patterns in Vote Rate

Last year, Josh Rust and I looked at the rates at which political scientists vote, compared to other professors. We also looked at the rates at which political philosophers voted, compared to ethicists in general and to philosophers not specializing in ethics or political philosophy. Our main finding (see here) was that all groups voted at about the same rate, except for political scientists, who voted about 10-15% more often. This fits with our general finding (so far) that by a variety of measures ethicists don't behave much differently than other people of similar social background.

The result that surprised me most from that study, though, and the one I keep coming back to in my mind, was this: The variance in voting rate was the the same (really, virtually exactly the same) for all the groups. I had expected that extreme views about voting -- either about its pointlessness or its importance -- would be overrepresented among political scientists and political philosophers, and that this would be reflected in the voting patterns. Maybe political philosophers aren't any more likely to vote, on average, I thought -- but there'd be a fair number who were highly conscientious, voting in virtually every election, and a fair number who were principled non-voters. If this were the case, they should show a wider spread of voting rates -- or in other words a higher variance. However, we found no such thing.

Excluding the non-voters for a minute, let's look at the distribution of voting rates among the sampled groups: political philosophers, political scientists, non-ethicist philosophers, and the comparison group of other professors, in the following four charts. (Each group gets its own chart. On the x-axis is the number of votes per year, on the y-axis is the percentage of the group that votes at that rate.)





The thing to notice is that there's no more spread in any of these groups than any of the others. Each shows basically the same hump in the middle. (The dip just to the left of the 1.00 votes per year in each group is due to the fact that professors are more likely to vote about once every two years [.50] or about once every year [1.00] than three times every four years [.75]. It's also worth noting that local election data are missing for some regions, so this chart somewhat underestimates the overall voting rate.)

The zeros are a little harder to interpret: For about 25% of sampled professors no voting record was found -- which might reflect a pattern of not voting among those professors, but might also reflect registration under a different name or in a different area. So the following numbers certainly overestimate the number of non-voters. But notice again that there is no tendency for overrepresentation at this end of the scale either, among political scientists or political philosophers (the variations in the percentages here are all within the range of chance variation).

Percentage of sampled professors with no voting record found:
political philosophers: 22.4%
political scientists: 26.2%
non-ethicist philosophers: 29.1%
comparison professors: 26.9%
I find the overall results particularly striking for political philosophers: They are neither, on average, more prone to vote than other professors, nor are they bimodally split between conscientious voters and principled non-voters. Most of them just vote occasionally, sporadically, like the rest of us. It's as though all their thinking about politics has no influence on their voting behavior. (I have other evidence that suggests that it has no influence on their political party, either, but that's for another day.)

Wednesday, March 11, 2009

Philosophical Trust

What is the difference between those philosophers who are willing and those who are unwilling to invest the time to master works like Hegel's Phenomenology of Spirit, Kant's first Critique, or Heidegger's Being and Time (assuming those works touch one's areas of interest)? It must have something to do with trust -- trust that these men were geniuses enough to make the effort worthwhile. Perhaps most relevant here is a ratio, the ratio of self-trust (that one can make progress without their help) vs. trust in others. Of course, pleasure along the way is relevant too: how much joy one gets from puzzling out the details, in the early stages of understanding. But it's hard to imagine such pleasure without an undergirding trust.

It seems to me there's a great divide within philosophy between those with high self- to other-trust ratios and those with low ratios. So I wonder: Is there any way to measure this difference, apart from examining a philosopher's willingness to bang her head against Kant's deductions? Does the difference correlate with any other philosophical or non-philosophical traits or behavior?

Tuesday, March 03, 2009

What Is an Illusion, Exactly?

I'm confused again. Publicly expressing confusion seems to have become a (perhaps tiresome) professional habit of mine these days.

A classic example of an illusion -- classic in the sense of dating back to ancient Greece, not classic in the sense of central to 20th century perceptual psychology -- is the oar partly submerged in water. Due to (what we now know as) the laws of the refraction of light, the oar typically, in some sense, "looks bent" as it angles into the water. But one might argue (does John Austin argue this?) that that bent appearance is not really an illusion: If one knows enough about the world, one should know that an oar partly submerged in water (seen from a particular viewing angle) should look bent just like that. If it looked straight, I suppose, a longtime oarsman or a person very familiar with the laws of refraction might think the oar looked strange, might even think that it looked like an oar that is actually bent (bent in such a way as to exactly compensate for the bend a straight oar would seem to have at that angle). Perhaps part of what it is for an oar to look straight is for it to also (in a different sense) "look bent" when it is partly submerged in water. (This formulation is indebted to Alva Noe's "dual aspect" view of perspectival appearance.)

So is the skilled oarsman experiencing a visual illusion as he looks at the oar? If we say no, then I'm worried we're off onto a slippery slope to entirely denying the possibility of illusions that are known to be such. When I press gently on the side of one eye, I seem to see double. Is this also no illusion, since I know that's how things are supposed to look when I press on one eye? When I look at the Poggendorff illusion (below) I know that if the upper segment of the line going behind the rectangle really is aligned with the lower segment emerging near the bottom, they should look (in some sense of "look") offset. I've seen this illusion so much that now I think that if I saw a figure of this sort where the lines didn't look (in the relevant sense) offset I would probably infer that they really were offset. Parallel to the oar case, perhaps, what it is for the line segments to look aligned (for me) is for them to look (in a different sense) like they don't align.

(image reproduced from Titchener 1901-1905)
But if the Poggendorff illusion is no illusion for me, then is any illusion an illusion to someone who knows how the illusion works?

So maybe we should say the oarsman does experience illusion. But then there's the risk of a slippery slope on the other side, toward saying that much more is illusory than we ordinarily think. If the bent oar is illusory, it seems that looking at things through a curved glass of water must be, since the refraction similarly distorts things. And then it seems like a magnifying glass held at arm's length similarly creates illusion. But then also does a magnifying glass held near the eye? A telescope? Ordinary corrective lenses?

Monday, March 02, 2009

Do Things Look Flat?

I've posted a draft of Chapter Two of my book in progress (tentatively titled Perplexities of Consciousness). The chapter is titled "Do Things Look Flat?" and is a revision of my 2006 essay of the same title, with a little more nuance and historical depth and a longer discussion of the view (dating back to Ptolemy but peaking, evidently, circa 1900) that most things appear doubled in the visual field. Comments/suggestions/criticisms welcome, of course, either as email or as comments on this post.

Abstract:
Does a penny viewed at an angle in some sense look elliptical, as though projected on a two-dimensional surface? Many philosophers have said such things, from Malebranche (1674/1997) and Hume (1739/1978), through early sense-data theorists, to Tye (2000) and NoĆ« (2004). I confess that it doesn’t seem this way to me, though I’m somewhat baffled by the phenomenology and pessimistic about our ability to resolve the dispute. I raise a geometrical objection to the view and conjecture that, maybe, the view draws some of its appeal from the over-analogizing of visual experience to painting or photography. Theorists writing in contexts where vision is analogized to less projective media – signet ring impressions in wax in ancient Greece, stereoscopy in introspective psychology circa 1900 – seem substantially less likely to attribute such projective distortions to visual appearances. Stereoscope enthusiasts do, however, seem readier than scholars in other eras to attribute a pervasive doubling to visual experience – like the doubling, perhaps, of an unfused image in a stereoscope.

Thursday, February 26, 2009

The Strange Stability of UCR's Gourmet Ranking

When I arrived at U.C. Riverside in 1997, we were ranked 34th among U.S. Philosophy Ph.D. programs on in the widely-read Philosophical Gourmet Report. Now we're ranked 30th. In the intervening time, we have hovered steadily between the low 20s and the mid 30s.

Here's a full list of tenured faculty from 1997 who are no longer with the department:

(1.) Bernd Magnus (Nietzsche), retired.

Here's a full list of tenured faculty in 2009 who were not tenured members of the department in 1997:

(1.) Maudemarie Clark (Nietzsche), recruited from Colgate.
(2.) Peter Graham (epistemology), hired as Asst Prof from Stanford, later tenured.
(3.) Agnieszka Jaworska (moral psychology), recruited from Stanford.
(4.) Robin Jeshion (philosophy of language), recruited from Yale.
(5.) John Perry (philosophy of language, only part-time at UCR), recruited from Stanford
(6.) Erich Reck (history of analytic philosophy), present as Asst Prof in 1997, later tenured.
(7.) Eric Schwitzgebel (philosophy of psychology), present as Asst Prof in 1997, later tenured.
(8.) Charles Siewert (philosophy of mind), recruited from Miami.
(9.) Mark Wrathall (Continental philosophy), recruited from BYU.

Also in the intervening years we recruited Gary Watson from UC Irvine and lost him to USC. We also tenured then lost two Assistant Professors (Carl Hoefer and Genoveva Marti) and hired three Assistant Professors who have not yet stood for tenure (William Bracken, Coleen Macnamara, and Michael Nelson).

The tenured professors of 1997 (Carl Cranor, John Fischer, David Glidden, Paul Hoffman, Pierre Keller, Andrews Reath, Georgia Warnke, Howie Wettstein, Larry Wright) have continued to be productive. One measure of this is that all but one of them have produced at least one new book from a leading press in the period (if we count Hoffman's forthcoming book and Wright's influential textbook).

I'd hate to think that my impression that the UCR Philosophy Department has strengthed considerably since 1997 is just another of my self-serving delusions. (Not that I know what the other ones are!) The numbers above at least seem to lend some objectivity to my impression.

So what's the explanation of our virtually unchanged ranking? Not conspiracy, of course, nor the ill will of Brian Leiter (who has spoken kindly of us over the years). Some institutions (for example, USC and Yale) have climbed sharply, so it must be possible. Is the issue, perhaps, that in order to pierce the top 25 a department must have at least one full-time super-heavyweight, and no one in the department is perceived that way? Or were we too highly ranked early on? Or have our peer departments improved just as sharply? Or...? I have a feeling there something to learn here about UCR or about the ranking system....

Update, December 15, 2011:
Between 2009 and 2011 we lost about 25% of our senior faculty. We lost Paul Hoffman (death), Robin Jeshion (USC), Charles Siewert (Rice), and Georgia Warnke (UCR Political Science). Maudemarie Clark went from full-time to 2/3 time. We hired one assistant professor, Josef Muller. In 2009 we were ranked #30. Now we're ranked #31. Not that I'm complaining.

Friday, February 20, 2009

The Consciousness Online Conference

has begun, running through the 27th. Online so far:

Barbara Montero, "Russellian Physicalism"
Gualtiero Piccinini, "First-Person Data, Publicity, and Self-Measurement" (I'm one of the commentators on this one).
Katalin Balog, "In Defense of the Phenomenal Concept Strategy"
Matthew Ivanowich, "A Moderate Representationalism"
Clare Batty, "Scents and Sensibilia"
Dave Beisecker, "Zombies and the Phenomenal Concepts Strategy"
Richard Brown, "Turning the Tables on Dualism"
Derek Ball, "The New New Mysterianism"
Justin Sytsma, "Folk Psychology and Phenomenal Consciousness"
David Rosenthal, "Consciousness and Its Function"
I'm not sure yet what I think of the video format. Reading seems more efficient. But maybe video adds some sort of subtle dimension.

Thursday, February 19, 2009

Will You Perceive the Event That Kills You?

from 3quarksdaily. (HT: Josh Rust)

(I think it's going to matter whether the trauma directly involves the perceptual areas of the brain.)

Tuesday, February 17, 2009

Is Philosophy All in Our Heads?

In a 1998 essay, Alvin Goldman and Joel Pust distinguish between two approaches to philosophy, which they call the mentalist and the extra-mentalist. According to the mentalist, when we do the typical philosophical armchair-reflection thing -- when we think about, for example, whether XYZ on Twin Earth (which behaves like water but has a different chemical formula) is water or not, or when we think about whether a dude who doesn't realize he's in Fake Barn Country knows that the real barn he's looking at is a barn -- we are finding out something not about the world outside of us, but rather about our minds. We are finding out about our concepts. According to the extra-mentalist, in contrast, philosophical thought experiments aim to reveal something about the world beyond our minds -- something about the real nature of water and knowledge, perhaps, or about what is and isn't possible. Goldman and Pust endorse mentalism.

Mentalism has the following great advantage over extra-mentalism: Mentalism makes it clear how it's possible for philosophers to learn something from their armchairs. What they are learning is about their own minds. They're exploring their concepts. It's much less clear how reflecting in an armchair can deliver what the extra-mentalist wants, valuable information about the world beyond our minds. But there are two equally great disadvantages to the mentalist conception of philosophy. First, it trivializes the subject matter. Where we thought we were learning about the world -- about the nature of language, of knowledge, of the fundamental constituents of reality, of the morally good -- it turns out that we're only learning about our concepts of language, of knowledge, of the fundamental constituents of reality, of the morally good. A very different sort of thing. How disappointing!

The second disadvantage of the mentalist conception is this: It turns philosophy into a methodologically dubious species of psychology. If what we're really interested in is our concepts, is sitting in an armchair thinking about Twin Earth really the best way to go about it? Well, that's one way. But empirical psychology offers us a whole stable of other ways, including polling people about puzzle cases, studying reaction times, asking people to list features in terms of typicality, etc. Armchair reflection about weird possibilities, by people who generally have some theoretical skin in the game, does perhaps have something important to contribute to the study of human concepts, but at most it is one part of a larger enterprise that is probably best left in the hands of psychologists.

So I think we must have an "extra-mentalist" conception of philosophy. Philosophers are trying to learn, not just about what concepts our human minds happen to be stuck with, but about reality as it exists beyond our minds -- and within our minds, possibly beyond our conceptions. But then that forces us back to the question of how reflecting in an armchair about strange scenarios, which is a large proportion of what mainstream "analytic" philosophers do, puts us in touch with that reality. My thought is: It doesn't. Well, let me temper that just a bit. Armchair reflection gives us a preliminary take; it helps us develop and discover the consequences of the views that we have inherited or acquired through everyday experience. In those domains where such inherited, everyday views are well-founded (e.g., the behavior of middle-sized dry goods under moderate force, mundane social interactions), our armchair judgments are likely also to be well-founded. The further we get from the ordinary, however, the less we should expect such armchair reflections to be of value. And unfortunately, most philosophical thought experiments are far from the ordinary.

Tuesday, February 10, 2009

Recoloring the Dreamworld

I'm hard at work these days on my second book, tentatively titled Perplexities of Consciousness. Chapter One, "Recoloring the Dreamworld", draws from these three earlier essays, integrating, updating, and adding new reflections. I've posted it here.

The chapter treats the rise and fall of the view, widespread in the U.S. circa 1950, that dreams are primarily a black and white phenomenon. I argue that it's likely that dreams themselves did not change over the course of the 20th century, but rather that what changed was only people's opinions about their dreams. The view that dreams are black and white was most likely due to an overanalogizing of dreams to the black and white film media dominant at the time. It's also possible, I suggest, that the contemporary view that dreams are in color -- as opposed to leaving unspecified the color of most of the objects represented -- is also due to overanalogizing to film media.

Corrections and objections welcomed, of course, either here or by email. (Unalloyed praise is of course also welcomed, though less useful!)

Thursday, February 05, 2009

Anxiety, Neurosis, Noctural Female Orgasm, and Sabbatical

In rereading some of the old literature on black and white dreaming I came across this:

Perhaps the most striking finding in the present study, however, is that of the high incidence of nocturnal orgasms reported by female neurotics (47 per cent) as opposed to the incidence reported by female controls (8 per cent) (Tapia, Werboff, and Winokur 1958, p. 122).
In clarifying what they mean by "noctural orgasms" Tapia et al. say "A positive response was counted when a subject reported experiencing 'wet dreams', climaxes, or orgasms in his [sic] sleep or dreams" (p. 121). By "neurotic" of course they mean... well, who knows?

Eight vs. 47? Six times higher? Presumably it's not as fun to be a waking "neurotic" as a waking non-neurotic, but it sounds like in sleep the situation is reversed! Or are neurotic women just more likely to report nocturnal orgasms? Well, why would that be?

Winokur, Guze, and Pfeiffer (1959) extend the Tapia et al. results to include "psychotic" women too (perhaps a better-defined group than neurotic), reporting nocturnal orgasm rates of 42% in that group, 46% in neurotics, and 6% in psychologically healthy women. Henton (1976) also reports a positive relationship between high levels of reported anxiety and high levels of reported "sexual excitement during sleep" (though, um, unless I'm reading things very wrong, the numbers on his key table seem to run the other direction; this is what I get for reading crappy journals). Finally (the last report on this topic I can find) Wells (1986) finds anxiety to be predictive of reported nocturnal orgasm in a complex multiple regression taking into account "age, marital status, race, religious affiliation, religiosity, liberal or conservative political views, and hometown population" (p. 428) and 71 other variables including even views about the normality of noctural orgasm, sexual satifaction, and frequency of awakening with non-orgasmic sexual excitement. (I'm not sure I'd have wanted to "control" for those last variables in determining influence on orgasm, since they seem likely to cohere with rather than to confound the factor under study, but what the heck -- even so, Wells got her result.)

This is what you get when you let professors take sabbatical. It turns out they have nothing better to do all day than chase down weird literature on female orgasm.

(I'm not entirely without excuse: Lisa Lloyd was my dissertation chair, and I thought it might make a good footnote.)

Sunday, February 01, 2009

The Legend of the Leaning Behaviorist

I've heard this story orally a couple of times. I wonder if any of you know whether it's actually true. Let's call it the "The Legend of the Leaning Behaviorist".

Once upon a time, long ago and far away -- actually, circa 1960 at a prominent U.S. university -- there lived a behavioral psychologist, an expert in the shaping of animal behavior by means of reward and punishment. One semester, when he was teaching a large lecture course, his students tried an experiment on him. Without letting him know, they decided that when he was lecturing on the left of side of the room, they would smile and nod a bit more often than usual. Conversely, when was on the right, they would knit their brows and look away. Soon, all the lectures were delivered from the left. The students then altered their strategy. Whenever he moved to the left, they would smile and nod; whenever he moved to the right, they would knit their brows. The result was that he drifted ever more leftward, until by the end of the term, he was lecturing while leaning against the left wall. On the last day of class, one of the students asked him why he was lecturing from over there, and he said, "Oh, I don't know. It's close to the ashtray."

Wednesday, January 21, 2009

The Dust Hypothesis

Consider the following argument:

(1.) It doesn't matter what your mind is made of, as long as the functional relationships between your mental states and the inputs and outputs are right. A conscious person could be made of carbon-based molecules with an organic brain, or of silicon chips in a robot body, or of suitably complex magnetic iron structures. If a being dependably acts like a sophisticated, conscious, intelligent being, it is a sophisticated, conscious, intelligent being. (Searle would disagree with this, but it is the majority view in philosophy of mind and standard in fictional portrayals of android and alien intelligences.) Let's call each temporal slice of such a being a "cognitive state".

(2.) The cognitive states (or temporal slices) of people can be temporally or spatially distributed. If a being of the sort in (1) exists for only one second out of every ten, it is still a conscious, intelligent being, just one with temporal gaps in it -- gaps the being itself may not notice. Likewise, if the being is partly instantiated in Paris and partly in Rio, with the two parts in constant communication, reacting in a co-ordinated way to produce the right sort of behavior, that also does not deprive it of consciousness and intelligence. (Something like this is suggested by Dennett.)

(3.) Furthermore, the objective temporal order of cognitive states is irrelevant. If input 1 ("How are you?") is followed by cognitive states 2, 3, and 4, then by output 5 ("Better, now that you've stopped kicking me!"), it shouldn't matter if as measured by the objective time of the outside world, state 3 comes before state 2, as long as in terms of subjective time and cognitive sequence state 2 comes first. (Dennett, again, is useful here. It's a little tricky to figure out what subjective time and cognitive sequence are independent of objective temporal order; but the conclusion of the argument can be weakened to dispense with this premise if necessary.)

(4.) Also, actual connection to the outside world is irrelevant. You could still have the intelligence and consciousness you now in fact have if your cognitive states were instantiated in a brain in a vat. (Here we may be departing from Dennett; but even if, as Dennett's student Noe and others have argued, some environmental connections are essential to mindedness, we can probably still run the argument I'm interested in. We just turn it into brain-and-relevant-bit-of-the-environment in a vat. We could also dispense with certain "externally defined" mental states and still have an interesting version of the conclusion if necessary.)

(5.) If all this is true, it appears to invite the following conclusion: As long as somewhere in the universe, in some temporal order there exists a functional equivalent of each of your cognitive states, no matter where, in what material, or how grossly distributed over time and space, then there is a mental duplicate of you in existence.

(6.) Then, finally: In all the spatial and temporal vastness of the universe, each of your cognitive states will be instantiated somewhere other than your own brain, in vastly different times and locations.

(7.) So, there is a mental duplicate of you spread out across space and time.

(8.) And this generalizes: There are many, many such people; the universe (at least the complex bits of it) is permeated with them; they include many possible alternative versions of you; etc.

Call this the Dust Hypothesis, after science fiction writer Greg Egan's similar Dust Hypothesis in his book Permutation City.

Assuming the conclusion is absurd, the question is where to put on the brakes. My own inclination is either (1), following Searle, or (5), or (6). On 6: Perhaps the functional relationships necessary for sophisticated, conscious thought are so complex that even in the vast universe they would not be instantiated except in coherent, brain-like packages. But maybe that underestimates the vastness and complexity of the universe?

On (5): Perhaps actual causation between cognitive states is necessary to mentality and consciousness, not just the instantiation of those states with the right counterfactual and dispositional relationships. But I worry. Couldn't there be a mental being causally truncated on one end (brought suddenly into being by freak quantum accident, like Swampman), or on the other (destroyed suddenly by lightning), or both (thus existing for only a moment)? Or what if you have an idea due to stroke or quantum accident (and then maybe the idea vanishes for similar reasons)? Or suppose that you are destroyed and merely by chance a duplicate of you is simultaneously created elsewhere -- wouldn't there be a stream of mentality that transitioned from one to the other? (Could you tell? Would it matter deeply to you whether the duplicate came about by chance or design?) Then generalize. It's a complex issue, but for reasons like those, I'm inclined to think that the actual instantiation of dispositional and functional structures, even if they're not actually causally connected, is enough for interesting and subjectively continuous mentality (even if some externally defined states like genuine [as opposed to apparent] memory require actual causation). But then if we grant (1) and (6) and the others, we seem to be back to the Dust Hypothesis.

Open Courseware in Philosophy

A reader just forwarded me this list of Top 100 Open Courseware links in Theology and Philosophy, including syllabae and the professors' lecture notes or overheads. The philosophy sections are dominated by MIT.

Wednesday, January 14, 2009

Introspection: A Draft Entry for the Stanford Encyclopedia of Philosophy

... is now up here. It is, I'm afraid, monstrously long (85 double-spaced manuscript pages, about 21,000 words). Hopefully it's well enough organized that people can locate the section most relevant to their interests and read it in isolation. I saved for the end of the entry my own material on our poor knowledge of our own stream of conscious experience.

There are always trade-offs between accuracy, comprehensiveness, readability, and length, and I'm not sure I consistently found the right balance. Feedback welcome!

Monday, January 12, 2009

NEH Summer Seminar on Experimental Philosophy

Ron Mallon and Shaun Nichols are putting together an NEH summer seminar on Experimental Philosophy. NEH summer seminars are seminars for faculty across the country to learn about or deepen their knowledge of a particular topic in the humanities. I participated in one in 1999 (Robert Gordon 's on folk psychology), and it was great fun. It was almost like going to college again. Those of us who chose to live in the dormrooms did frosh-like things like sneak in liquor late at night and gossip over breakfast.

Here's their blurb:

Experimental Philosophy is a new movement that uses experiments to address traditional philosophical questions. Although the movement is only a few years old, it has attracted prolific practitioners as well as ardent critics. (For more about Experimental Philosophy, see the recent article in the New York Times or the ongoing discussion at the Experimental Philosophy Blog.)

This summer, the NEH is sponsoring an Institute on Experimental Philosophy. The Institute will bring in over a dozen distinguished guest faculty, who will present their latest research across a wide range of issues and perspectives. The Institute will also provide participants with the opportunity to learn experimental methods that are used in Experimental Philosophy.

The Institute will take place in Salt Lake City from June 22-July 17 2009. Eligible participants must have a teaching position at a U.S. college or university. The deadline for application is March 2. More information about the Institute, as well as application materials, are available here.

Tuesday, January 06, 2009

Joshua Knobe and Alison Gopnik Debating Children's and Scientific Thinking

... on bloggingheads.tv. Two of my favorite scholars!

Josh says that ordinary reasoning about mental states is unlike scientific reasoning because our reasoning about mental states is influenced by our moral judgments (as his work suggests) while scientific reasoning is not so influenced. Alison, in contrast, is a leading proponent of the view that scientific reasoning and ordinary reasoning have much in common, especially in children. Josh plays the role of interviewer and lets Alison do most of the talking.

Near the end, Alison touches briefly on what I think is the key flaw on Josh's argument, the unwarranted assumption that scientific reasoning is not much influenced by moral judgments. In my view -- and I think this is now the majority view in philosophy of science -- scientific thinking is, and should be, thoroughly permeated with emotion and morality. The old model of the impartial, objective scientific observer cannot be sustained. So there's no reason Josh's findings about the effects of moral judgments on ordinary reasoning have to stand in conflict with Alison's view of the continuity of scientific and everyday reasoning.

Friday, January 02, 2009

The Gender Migration of Names

Noticing my son's playmates and classmates, the following thought occurs to me: Didn't Sidney used to be a man's name? And August? And Loren?

Being an empirically-minded philosopher (and one with a little time away from classes), I had to check. I went to the U.S. Social Security Administration's baby names site and I looked up the 1000 most popular boy and girl baby names for 1900 and for 2000. August, to my surprise, didn't rate among the top 1000 girls' names (though I know two young Augusts, both girls), but Sidney and Loren both made the gender switch. In 1900, Sidney was #108 among boy names and #777 among girls. By 2000, the ratio had flipped to #594 for boys and #264 for girls. Same with Sydney: In 1900 #730 among boys, unranked among girls; in 2000, unranked among boys and a startling #23 among girls. Loren/Lauren pulled the same trick: In 1900, #342 and #943 for boys, unranked for girls; in 2000, #704 and #11 for girls, unranked for boys.

In other words, Loren/Lauren and Sidney/Sydney went from being modestly popular boys' names to being leading girls' names. But does it ever go the other way around? Do girls' names ever become boys' names? I wouldn't think so: Calling a girl "Joe" (or "Jo") or "Jack" ("Jaq") is cute; calling a boy "Anna" or "Mary" doesn't have quite the same effect. In fact, it might be perceived as something like a lifetime curse.

So I ran a few analyses. In the SSA lists, I found 26 names that switched from masculine in 1900 to feminine in 2000 and 4 that went the other way. (That's p < .0001 on the binomial test, by the way, if you want the statistics.) Here they are:

Male to Female:
(apologies for the small reproduction: click to enlarge)As is evident from this list, 5 of the top 25 girls' names in 2000 (Madison, Taylor, Lauren, Sydney, Morgan) were boys' names in 1900! The gender migration of girls' names to boys' names looks very different.These seem to be aberrations, not a trend. Two appear to be due to an increasing acceptability of "-ie" and not just "-y" as a proper spelling of the long-e suffix for male names. The other two are due to the precipitous decline of "Jean" and "Joan" as girls' names, coupled presumably with the retention of those names as foreign equivalents of the durably and internationally popular boys' name "John". None ranks among the top 500 boys' names.

I can't resist concluding with the thought that if trends continue, someday every Tom, Dick, and Harry will be a girl.

Saturday, December 27, 2008

Andrew Sullivan on "Why I Blog"

here. Insights on the nature and advantages of the medium. Much, but not all, applies to academic blogs.

From my first post in April 2006 through our adoption of Kate in March 2008, I posted relentlessly Mon-Wed-Fri. Now it's more like once a week. I suspect that not only the one-year-old child but also the new ipod have cut into my blogging: Many blogging ideas used to come during morning walks, which are now sometimes filled with Frank Sinatra, Al Stewart, or This American Life instead. I haven't decided if this is a good thing or bad.

Oh, and Happy (recent or continuing) Whatever! (Global Orgasm Day, for example.)

Friday, December 19, 2008

Zhuangzi: Big and Useless -- and Not So Good at Catching Rats

[Cross-posted at Manyul Im's Chinese Philosophy Blog]

Okay, I've written about this before; but, to my enduring amazement, not everyone agrees with me. The orthodox interpretation of Zhuangzi (Chuang Tzu) puts skillful activity near the center of Zhuangzi's value system. (The orthodoxy here includes Graham, Ivanhoe, Roth, and many others, including Velleman in a recent article I objected to in another connection.)

Here is one reason to be suspicious of this orthdoxy: Examples of skillful activity are rare in the Inner Chapters, the authentic core of Zhuangzi's book. And the one place in the Inner Chapters where Zhuangzi does indisputably praise skillful activity is in an oddly truncated chapter, with a title and message ("caring for life") suggestive of the early, immature Zhuangzi (if one follows Graham in seeing Zhuangzi as originally a Yangist). Even the term "wu wei", often stressed in skill-based interpretations as indicating a kind of spontaneous responsiveness, only appears three times in the Inner Chapters, and never in a way that indisputably means anything other than literally "doing nothing".

Zhuangzi writes:

Maybe you've never seen a wildcat or a weasel. It crouches down and hides, watching for something to come along. It leaps and races east and west, not hesitating to go high or low -- untill it falls into the trap and dies in the net. Then again there's the yak, big as a cloud covering the sky. It certainly knows how to be big, though it doesn't know how to catch rats (Watson trans., Complete, p. 35).
On the one hand, we have the skill of the weasel, which Zhuangzi does not seem to be urging us to imitate; and on the other hand we have the yak who knows how to... how to do what? How to be big! It has no useful skills -- it cannot carve oxen, guide a boat, or carve a wheel -- and in this respect, Zhuangzi says it is like the "big and useless" trees that repeatedly occur in the text, earning Zhuangzi's praise. Zhuangzi continues:
Now you have this big tree and you're distressed because it's useless. Why don't you plant it in Not-Even-Anything Village, or the field of Broad-and-Boundless, relax and do nothing by its side, or lie down for a free and easy sleep under it? (ibid.)
That is the core of Zhuangzi, I submit -- not the skillful activity of craftsmen, but lazy, lounging bigness!

Where else does Zhuangzi talk about skill in the Inner Chapters? He describes the skill of a famous lute player, a music master, and Huizi the logician as "close to perfection", yet he calls the lute-playing "injury" and he says these three "ended in the foolishness of 'hard' and 'white' [i.e., meaningless logical distinctions]" (p. 41-42). Also: "When men get together to pit their strength in games of skill, they start off in a light and friendly mood, but usually end up in a dark and angry one, and if they go on too long they start resorting to various underhanded tricks" (p. 60-61). He repeatedly praises amputees and "cripples" who appear to have no special skills. Although he praises abilities such as floating on the wind (p. 32) and entering water without getting wet (p. 77), these appear to be magical powers rather than perfections of skill, along the lines of having "skin like ice or snow" and being impervious to heat (p. 33); and its unclear the extent to which he seriously believes in such abilities.

How did the orthodox view arise, then? I suspect it's mostly due to overemphasizing the dubious Outer and Mixed Chapters and conflating Zhuangzi's view with that of the more famous "Daoist" Laozi (Lao Tzu). Since this happened early in the interpretive tradition, it has the additional force of inertia.

Friday, December 12, 2008

Thursday, December 11, 2008

Do Chinese Philosophers Think Tilted Coins Look Elliptical?

[Cross posted at Manyul Im's Chinese Philosophy Blog]

In my 2006 essay "Do Things Look Flat?", I examine some of the cultural history of the opinion that visual appearances involve what I call "projective distortions" -- the opinion, that is, that tilted coins look elliptical, rows of streetlights look like they shrink into the distance, etc. I conjecture that our inclination to say such things is due to overanalogizing visual experience to flat, projective media like paintings and photographs. In support of this conjecture, I contrast the contemporary and early modern periods (in the West) with ancient Greece and introspective psychology circa 1900. In the first two cultures, one finds both a tendency to compare visual experience to pictures and a tendency to describe visual experience as projectively distorted. In the latter two cultures, one finds little of either, despite plenty of talk about visual appearances in general.

I didn't do a systematic search of classical Chinese philosophy, which I love but which has less epistemology of perception, but I did find one relevant passage:

If you look down on a herd of cows from the top of a hill, they will look no bigger than sheep, and yet no one hoping to find sheep is likely to run down the hill after them. It is simply that the distance obscures their actual size. If you look up at a forest from the foot of a hill, the biggest trees appear no taller than chopsticks, and yet no one hoping to find chopsticks is likely to go picking among them. It is simply that the height obscures their actual dimensions (Xunzi ch. 21; Basic Writings, Watson trans., p. 134)
Though I can recall no ancient Chinese comparisons of visual experience and painting, both Xunzi and Zhuangzi compare the mind to a pan of water which can reflect things accurately or inaccurately, an analogy that seems related (Xunzi ibid. p. 131, ch. 25, Knoblock trans. 1999, p. 799; Zhuangzi, Watson trans., Complete Works, p. 97). In medieval China, which I know much less about, I noticed Wang Yangming saying such a comparison was commonplace (Instructions for Practical Living, Chan trans., p. 45).

So my question is, for those of you who know more Chinese philosophy than I, are there other passages I should be looking at -- either on perspectival shape or size distortion or on analogies for visual experience? I'm revising the essay for a book chapter and I'd like to expand my discussion to China if I can find enough material. Any help would be much appreciated!

(I also wouldn't mind more help on Greek passages, too, if anyone has the inclination. Some of the more obvious passages are Plato's discussion of painters in the Republic and Sophist, Aristotle's discussion of sensory experience as like impressions in wax, Sextus's lists of sensory distortions in experience and his discussions of wax impressions, Epicurus's discussions of the transmission of images, discussions of the sun as looking "one foot wide", and Euclid's and Ptolemy's optics.)

Friday, December 05, 2008

Being Thirsty and Thinking You're Thirsty

Here's a passage from David Velleman's recent essay, "The Way of the Wanton" that caught my attention (earning a rare four hm's in the margin, plus a question mark and exclamation point):

Attentively reflecting on one's thirst entails standing back from it, for several reasons. First, the content of one's reflective thoughts is not especially expressive of the motive on which one is reflecting: "I am thirsty" is not an especially thirsty thought, not necessarily the the thought of someone thinking thirstily. Second, attentive reflection is itself an activity -- a mental activity -- and, as such, it requires a motive, which, of course, is not thirst. Reflecting on one's thirst is, therefore, a distraction from acting on one's thirst, and in that respect is even a distraction from being thirsty. Most importantly, though, consciousness just seems to open a gulf between subject and object, even when its object is the subject himself. Consciousness seems to have the structure of vision, requiring its object to stand across from the viewer -- to occupy the position of the Gegenstand (p. 181, emphasis in original).
Let's go one point at a time.

Does reflecting on thirst entail "standing back" from it? It's not clear what this metaphor means, though Velleman's subsquent three reasons help clarify. But before we get to those reasons, let's just wallow in the metaphor a bit: Standing back from one's thirst. I don't want to be too unsympathetic here. The metaphor is inviting in a way. But I at least don't feel I have the kind of rigorous understanding I'd want of this idea, as a philosopher.

On to the reasons:

(1.) Per Velleman: "I am thirsty" is not an especially thirsty thought, not necessarily the thought of something thinking thirstily.

Walking across campus, I see a water fountain. The sentence "Damn, I'm thirsty!" springs to mind as I head for a drink. Is this not a thirsty thought? It seems reflective of thirst; it probably reinforces the thirst and helps push along the thirst-quenching behavior -- so it's thirsty enough, I'd say. Is it not a thought, then -- or at least not a thought in the self-reflective sense Velleman evidently has in mind here? Maybe, for example, it's simply expressive and not introspective, an outburst like "ow!" when you stub your toe, but as it were an inner outburst? (Is that too oxymoronic?)

So let's try it more introspectively. As it happens, I've been introspecting my thirst quite a bit in writing this post, and despite having had a drink just a few minutes ago I find myself almost desperately thirsty....

Okay, I'm back. (Yes, I dashed off to the fountain.)

All right, I just don't get this point. Or I do get it and it just seems plain wrong.

(2.) Per Velleman: Attentive reflection is a mental activity that requires a motive, which is of course not thirst. It's a distraction both from acting on one's thirst and from being thirsty.

Does mental activity require a motive? If an image of a Jim wearing a duck-hat comes to mind unbidden as I talk to Jim, need there be a motive? (Or is that not "mental activity"?) And even if there is a motive for reflecting on one's thirst, why can't that motive sometimes be thirst itself? For example, reflecting on my thirst might be a means to achieving drink -- for example, it might help ensure that I order something to drink at the restaurant. And as such, it needn't be a distraction from acting on one's thirst; it might be part of so acting. And finally, is it a distraction from being thirsty? Well, not in my experience! Darn, I'm getting thirsty again! I can imagine a kind of contemplative attention to one's thirst (as to one's pain) that in a certain way renders that thirst (or pain) less compelling. Maybe something like that is achieved in certain sorts of meditation. But that doesn't seem to me the standard case.

(3.) Per Velleman: Consciousness opens a gulf between subject and object, requiring its object to stand across from the viewer.

Huh? There's nothing wrong with metaphor per se, but they're hard to work with when you don't see eye to eye. Velleman develops the metaphor a bit in the next paragraph: As a subject of thirst, thirst is not in one's "field of view" -- rather things like water-fountains are. In self-reflection, one's thirst is in the field of view. Now this seems to me mainly a way of saying that one is not thinking about one's thirst in the first case and one is thinking about it in the second. (Is there more to it than that? If so, tell me.) But then that brings us back to the issue in (2): Is there a competition, as Velleman seems to believe, between feeling thirst and acting thirsty, on the one hand, and thinking about one's thirst on the other hand? Or do the two normally complement and co-operate?

Can we venture an empirical prediction here? If I suggest to subjects that think about whether they are thirsty, then set them free, will they be more or less likely to stop by the fountain on their way out than subjects I invite to think about something else? I'm pretty sure which way this one will turn out. Now I suspect this test wouldn't be fair to Velleman for some reason. (Maybe the suggestion will also affect thirst itself and not just reflection on it?) So if one of you is sympathetic to him, maybe you can help me out....

By the way, did I mention that this is a delightful and engaging article?

Wednesday, November 26, 2008

New Studies on Black and White vs. Colored Dreaming

In the mid-20th century, people generally thought most of their dreams were black and white; no longer. The key appears to be different levels of group exposure to black and white media. Two key questions are:

(1.) Does black and white media exposure lead people to really dream in black and white or does it lead people to erroneously report that they do?

(2.) Do people who report dreaming in color really dream in color or are the colors of most of the objects in the dreamworld unspecified? (If you have trouble conceiving of the latter, think about novels, which leave the colors of most of their objects unspecified.)
Two recent studies (Schredl et al. 2008; Murzyn 2008) cast a bit more light on these questions. Both researchers asked general questions about people's dreams and also had people answer questions about their dreams in "dream diaries" immediately upon waking in the morning.

First, both studies confirm that college-age respondents these days rarely report black-and-white dreams, either when asked about their dreams in general or when completing dream diaries. Murzyn finds that older respondents (aged about 55-75 years) more commonly report black and white dreams, but even in this group the rates of reported black and white dreams (22%) don't approach the levels of 50 or 60 years ago.

On issue 1: Both Schredl and Murzyn find that people with better overall dream recall report more colored and less black and white dreaming. Schredl also finds that people with better recall of color in (waking) visual displays report more color in dreams. On the face of it, this might suggest that reports of black and white dreams come from less credible reporters; but it could just be that the kind of people who dream in black and white are the kind of people who dream less often and less vividly and are less interested in color memory tasks; or black and white dreams may generally be less detailed. Also, it's possible that the experimenters' different measures corrupt each other: People who describe themselves as having frequent colored dreams may find themselves more motivated to report richly detailed colored dreams and to try harder on color recall tasks (as if to conform to their earlier self-portrayal) than do those reporting black and white dreaming.

On issue 2: Both studies find that respondents generally claim to dream in color or a mix of color and black and white, rather than claiming to dream neither in color nor in black and white. In Murzyn's questionnaire, only one of sixty respondents claimed to dream neither in color nor black and white (which matches my own findings in 2003). In their dream diaries, Murzyn's participants described only 2% of their dreams as neither colored nor black and white. In Shredl's dream diaries, participants listed objects central to their dreams and stated if those objects were colored. By this measure, 83% of dream objects were colored (vs. 3% black and white, 15% don't recall). Therefore, if it's true that most dream objects are neither colored nor black and white, respondents themselves must not realize this, even about their own immediately past dreams. This may seem unlikely, but given the apparent inaccuracy of introspection even about current conscious experience I consider it a definite possibility.

Thursday, November 20, 2008

Against Grant Applications

Psychologists -- and some philosophers -- spend a huge amount of time seeking grant money; I'm sure so also for many of the other sciences. I've become increasingly convinced that this is not the best way for leading researchers to be employing their time and talents. What if granting agencies simply selected (through a rotating committee of experts) a large number of established researchers and simply gave them research money without their having to ask, tracking only that it has been used for legitimate research purposes? There would still have to be ample room of course for unselected researchers to submit applications to obtain research funds and for researchers (selected or not) to submit applications for unusually large disbursements for especially worthy and expensive projects.

Wouldn't that give a lot of people more time simply to do their work?

Update, Nov. 21:
Driving home after posting this yesterday, I found myself anticipating comments asserting that such a policy would increase the gap between the academic haves and have-nots. I think that's a legitimate concern, but one that could be addressed by having the granting committee be especially energetic about looking for merit in junior researchers and outside the top schools.

Friday, November 14, 2008

Consciousness Without Attention?

Do we have conscious sensory experience of objects we don't attend to? On a rich view, we have virtually constant sensory experience in every sensory modality (for example, all day long, a peripheral experience of the feeling of our feet in our shoes). On a thin view, conscious experience is limited to one or a few things or regions in attention at any given time. This rich-thin dispute is substantive, not merely terminological, and ordinary folks (as well as psychologists and philosophers) seem to split about 50-50 on it (with some moderates). I worry that the issue may be scientifically irresolvable.

However, some leading researchers in consciousness studies (Block 2007; and [more qualifiedly] Koch & Tsuchiya 2007) have recently put forward an argument against the thin view that runs as follows. When one's visual attention is consumed with a demanding task and stimuli are presented in the periphery, one can still report some features of those stimuli, such as their "gist" (e.g., animal vs. vehicle). Similarly, when one is presented with a Sperling-like display -- a very brief presentation of three rows of alphanumeric characters -- one has a sense of visually experiencing the whole display despite the fact that one can only attend to (and report) some incomplete portion of it. Therefore, conscious experience outruns attention.

I believe this argument fails. In both cases, it's plausible to suppose that there may be diffuse attention to the entire display, the entire (say) computer screen, albeit with focal attention on only one part of it. Such examples may establish that consciousness outruns focal attention narrowly defined, but they do not establish that consciousness outruns some broader span of diffuse attention. When attending to a visual display on a computer screen one may not even diffusedly attend to the picture on the wall behind the computer or the pressure of the seat against one's back. The question is, are these consciously experienced when absorbed in the experimental tasks? The Block/Koch argument shines no light whatsoever on that issue.

[Update November 19: Ned Block emailed me to say that he thinks I'm oversimplifying his view. I did simplify the argument somewhat, and for brevity and convenience I used the Sperling example, which he mainly deploys for another (closely related) purpose, rather than using his own preferred example. But whether the above is an objectionable oversimplification is a further question. I emailed Ned back hoping for clarification on some key points but have not yet received a reply.]

[Update November 20: Ned Block has emailed me with a fuller reply (full text, with his permission, here). He explains that in his view consciousness only probably outruns attention and that "the evidence points toward" that fact; and he thinks this is better suggested by "inattentional blindness" type cases (where people don't report seeing even fairly large objects or property changes when their attention is primarily occupied in some distractor task) than in what I called "Sperling-like" displays (by which I meant complex displays shown too briefly to allow full report but with report enabled by a cue to some portion of the display either during the display or very shortly thereafter). He also points out that Koch & Tsuchiya, like he, say that "it is difficult to make absolutely sure that there is no attention devoted to a certain stimulus". Finally, he says that to the extent he makes a case that consciousness outruns attention, it is a "holistic" case based on a variety of evidence and theoretical considerations, not a single type of experiment.

When I originally wrote the post, I was less interested in the details of Block interpretation than in a certain form of argument which I have heard several times orally (including during a well-attended talk by a very eminent researcher), the argument taking the form described in the post; and Block and Koch & Tsuchiya are the most eminent people I've found recently saying things along those lines in print; but it's true that I should have more carefully stated their qualifications and hesistations.]

Wednesday, November 05, 2008

Mad Belief?

David Lewis famously endorsed the possibility of "mad pain" in his article "Mad Pain and Martian Pain":

There might be a strange main who sometimes feels pain, just as we do, but whose pain differs greatly from ours in its causes and effects. Our pain is typically caused by cuts, burns, pressure, and the like; his is caused by moderate exercise on an empty stomach. Our pain is generally distracting; his turns his mind to mathematics, facilitating concentration on that but distracting him from anything else. Intense pain has no tendency whatever to cause him to groan or writhe, but does cause him to cross his legs and snap his fingers. He is not in the least motivated to prevent pain or get rid of it. In short, he feels pain but his pain does not at all occupy the typical causal role of pain.
Mad pain in this sense seems to me conceivable. My question is: Could there be a parallel case for belief? Let's try to imagine such a case.

Daiyu, say, is a woman who believes that most pearls are white. However, this belief was not caused in the normal way. It was not caused by having seen white pearls nor by hearing testimony to the effect that most pearls are white or inferring that pearls are white from some other facts about pearls or whiteness. It was caused, say, by having looked for 4 seconds at the sun setting over the Pacific Ocean. And, for her, this is just the kind of event that would cause that belief: It's not the case that she would ever form that belief by any of the normal means such as those described above; rather the kinds of things that cause that belief in her in all "nearby possible worlds", or across the relevant range of counterfactual circumstances, are perception of setting-sun events of a certain sort, and maybe also eating a certain sort of salad. Furthermore, Daiyu's belief that most pearls are white has atypical effects. It does not cause her to say anything like "most pearls are white" (which she'd deny; she is actually disposed to say "most pearls are black") or to think to herself in inner speech "most pearls are white". She would feel surprise were she to see a white pearl. If a friend were to say she was looking for white jewelry to go with a dress, Daiyu would not be at all inclined to recommend a pearl necklace. She is not at all disposed to infer from her belief that most pearls are white that there is a type of precious object used in jewelry that is both round and white.

Now I'm inclined to think that this case is incoherent. If Daiyu in fact has that sort of causal/functional structure, it's not correct to say that she really does believe that most pearls are white. In this respect, belief is different from pain. If you agree with me about this, that would seem to rule out a certain class of views about belief, namely, those views that characterize belief in terms of a mental state (maybe a brain state) of the sort that, in humans, typically has certain sorts of causes and typically has certain sorts of effects but which may, in some particular individuals, be not at all apt to have been brought about those causes and be not at all apt to have those effects. It's hard to know exactly how to read "representationalists" about belief (like Fodor, Dretske, Millikan) on this point, but a certain way of reading the representationalist view would imply no incoherence in the idea of mad belief: If an individual possesses an internal representation of the right sort, held in such a way that if everything were functioning normally it would have the normal effects, that person believes -- even if everything is not functioning normally.

Compare: having a heart. Hearts might be defined in terms of their normal functional role (to pump blood), but a being can still have a heart even if that heart fails utterly to fill that normal functional role (in which case the being will presumably either not be viable or have its life sustained somehow without a functioning heart). I'm a type functionalist about hearts: To have a heart is to have the type of organ that normally fills the causal role of hearts even if in one's own case the organ does not fill that causal role. Lewis is a type functionalist about pain. But if the Daiyu case is incoherent, we should not be type functionalists about belief. Closer to the truth, I suspect, would be token functionalism: To believe is to be in a state that actually, for you, plays the functional/causal role characteristic of belief. I'm not sure how readily representationalists about belief, especially those who think of mental representations as biological types or real in-the-head entities, can take token functionalism on board. Perhaps they are committed to the possibility of mad belief.

Friday, October 31, 2008

Can Inferences Sometimes Lead to Knowledge Even if Their Premises Are False?

It seems a little strange to think so, and the philosophers I've asked about this in the last few days tend to say no. But here are three possible examples:

Inferential Ascent:

Consider the following rule: If P is true, then conclude that I believe that P is true. Of course, it's not generally true that for all P I believe that P. (Sadly, I'm not omniscient. Or happily?) However, if I apply this rule in my thinking, I will almost always be right, since employing the rule will require judging, in fact, that P is true. And if I judge that P is true, normally it is also true that I believe that P is true. So if by employing the rule I generate the belief or judgment that I believe that P is true, that belief or judgment is generally correct. The rule is, in a way, self-fulfilling. (Gareth Evans, Fred Dretske, Richard Moran, and Alex Byrne have all advocated rules something like this.)

And of course the conclusion "I believe that P is true" (the conclusion I now believe, having applied the rule) will itself generally be true even if P is false. I'm inclined to think it's usually knowledge.

One question is: Is this really inference? Well, it looks a bit like inference. It seems to play a psychological role like that of inference. What else would it be?

Instrumentalism in Science:

It's a common view in science and in philosophy of science that some scientific theories may not be strictly speaking true (or even approximately true) and yet can be used as "calculating devices" or the like to arrive at truths. For example, on Bas Van Fraassen's view, we shouldn't believe that unobservably small entities like atoms exist, and yet we can use the equations and models of atomic physics to predict events that happen among the things we can observe (such as tracks in a cloud chamber or clicks in a Geiger counter). Let's further suppose that atoms do not in fact exist. Would this be a case of scientific inference in which false premises (about atoms) generate conclusions (about Geiger counters) that count as knowledge?

Perhaps the relevant premise is not "atoms behave [suchly]" but "a model in which atoms are posited as fictions that behave [suchly] generates true claims about observables". But this seems to me needlessly complex and perhaps not accurate to psychological reality for all scientists who'd I'd be inclined to say derive knowledge about observables using atomic models even if some of the crucial statements in those models are false.

Tautologous Conclusions:

In standard two-valued logic, I can derive "P or Q" from P. What if Q, in some particular case, is just "not P"? Perhaps, then, I can derive (and know) "P or not P" from P, even if P is false?

What's the problem here? Why do philosophers seem to be reluctant to say we can sometimes gain knowledge through inference from false premises?

Tuesday, October 21, 2008

The Odor of Evil

My nominee for best use of fart spray in 2008:

Simone Schnall and co-authors (including the always interesting Jonathan Haidt) set up a table on the Stanford campus, asking passing Stanford students to complete a questionnaire on the immorality or not of marrying one's first cousin, having consensual sex with a first cousin, driving rather than walking 1 1/2 miles to work, and releasing a documentary over the objections of immigrants who didn't realize they were being interviewed on film. All respondents completed the questionnaire while standing near a trashbucket. For one group, the bucket was clean and empty; for another it was lightly doused with fart spray so that a mild odor emanated from it; for a third group, the bucket was liberally sprayed and emitted a strong stench. Participants in the odiferous conditions rated all four actions morally worse than in the fart-absent condition.

In other research, Haidt has found that people hypnotically induced to experience disgust are also more inclined to reach negative moral judgments then when they're not experiencing hypnotically-induced disgust; Schnall et al. found that people were more morally condemnatory when completing questionnaires in a disgustingly dirty office than in a clean one, after vividly recalling a disgusting event than after not being instructed to do so, and after watching a disgusting movie scene as opposed to a neutral or sad scene. In the last three of these experiments, they found the difference in moral judgment only among people who, in a post-test, described themselves as being highly aware of bodily states such as hunger and bodily tension. (As an aside, I'm generally mistrustful of the accuracy of people's reports about their typical daily steam of conscious experience, and I wonder if responses on the post-test might be influenced by the strength of either their reaction to the previously presented moral scenarios or their reaction to the disgusting stimulus.)

Moral condemnation and visceral disgust may be more closely related, then, than you think -- or at least than most philosophers seem inclined to think. Whether this is a good thing or a bad thing is open to dispute. In these scenarios, it seems like a bad thing, since people are being swayed in their judgments by irrelevant factors. Whether it's generally a bad thing, I suppose, will depend on whether there's generally a good relationship between the things that evoke visceral disgust and those worth morally condemning. (Unusual sexual practices? Poor hygiene? Illness? Reflecting on these sorts of cases leads me to suspect that the connection between visceral and moral disgust is overall more misleading than helpful.)

There's a practical moral to all this, too: When you're trying to get people to judge you lightly for all the crap you've done, don't fart!

A New Blog: Cognition and Culture...

here! (Pictures of the Dalai Lama included.)

I've finally recovered (mostly) from jet lag and am settling into Canberra, Australia, where I'll be for 2 1/2 more weeks. New posts coming soon!

Monday, October 13, 2008

New Version of the Moral Sense Test, Especially Designed for Philosophers

Fiery Cushman at Harvard and I are running a new version of the "Moral Sense Test", which asks respondents to make moral judgments about hypothetical scenarios. We're especially hoping to recruit people with philosophy degrees for this test so that we can compare philosophers' and non-philosophers' responses. So while I would encourage all readers of this blog to take the test (your answers, though completely anonymous, will be treasured!), I would especially appreciate it if people with graduate degrees in philosophy would take the time to complete it.

The test should take about 15-20 minutes, and people who have taken earlier versions of the Moral Sense Test have often reported it interesting to think about the kinds of moral dilemmas posed in the test.

Here's the link to the test.

(By the way, I'm off to Australia on Wednesday, and I doubt I'll have time to post to the blog between now and when I recover from my jet lag. But if you notice any problems with the test, do please email me so I can correct it immediately!)

[Update, October 14: Discussion of the test is warmly welcomed either by email or in the comments section of this post. However, if you are planning to take the test, please do so before reading the comments on this post.]

[Update, October 15: By the way, people should feel free to retake the test if they want. Just make sure you answer "yes" to the question of whether you've taken the Moral Sense Test before!]

Wednesday, October 08, 2008

The Crisis in Chinese Philosophy

The American Philosophical Association's Newsletter on Asian and Asian-American Philosophers and Philosophies has recently posted a discussion of the crisis in Chinese philosophy -- the perceived crisis being the fact that no highly-ranked North American philosophy department has a specialist in Chinese philosophy. I recommend the entire newsletter to those interested in the state of graduate education in Chinese philosophy -- perhaps starting with Bryan Van Norden's article.

My own take is that the situation is very serious for those hoping to receive graduate training in the area in the near future, but that the crisis is likely to be temporary, given what seems to me the generally increasing quality of work in that field, combined with the gradually increasing ethnic integration of North America.

Update, 5:05 p.m.: Manyul Im has opened a thread on the topic on his Chinese philosophy blog. No comments there yet, but I expect that's where the most informed discussion will be.

Tuesday, October 07, 2008

Applying to Graduate School in Philosophy

Yes, it's that time! Last year, I wrote a series of long posts on applying to Ph.D. programs in philosophy, based on my experience on admission committees at U.C. Riverside (and also to a lesser extent on my experience as an applicant and graduate student in the 1990s). Since people appear to have found it useful, I uploaded the whole series to the Underblog. There are also links to the original posts, where comments are welcome.

I have received a number of emails from people asking about their particular situations, and while I like to be helpful and I try to respond to all emails, I would encourage potential emailers to read through the posts and the comments to see if I've already addressed your type of situation. If you are in a type of situation that I have not addressed, though, I'd be happy to receive an email -- or even better hear about it in a comment, where my reply might also be useful to others.

I reiterate that these posts represent my own perspective only. Some of the things I say may be inaccurate or unrepresentative of general opinion. (And if so, I'd appreciate hearing from others who have served on admissions committees or who have recent relevant admissions experiences.) What I say is certainly not UCR policy. I won't even be on the admissions committee this year.

A few notes:

(1.) I know very little about M.A. programs, including admissions criteria, graduation rates, placement success, expectations within the programs, etc. I suspect that there's enormous diversity in these dimensions among programs.

(2.) Many students have emailed me or posted comments on applying to grad schools one, a few, or many years after graduation. I advise students to read through the comments section of Part II. There's also some further discussion in Part IV.

(3.) Another big issue is the student with the imperfect GPA or unusual institutional background. There's more discussion of this in the comments sections of several of the Parts.

(4. [update, 2:07 p.m.]) You might also want to check out the comments section on Brian Leiter's blog on the difference between U.S. and U.K. statements of purpose.

Thursday, October 02, 2008

Geekend 2008

A brief hiatus: I'm off to Geekend!

In the spirit of the occasion, I offer y'all some nerdcore:

Wednesday, October 01, 2008

What Is Philosophy?

How is philosophy different from the other academic disciplines? What makes it worth funding as an academic department? Here, I'll check my email for a minute while you think about your answer....

We could go sociological: We could say that philosophy is whatever it is that people who call themselves "philosophers" do. Or we could say that it is whatever it is that fits best into an integrated tradition arising from the canonical works of canonical figures like Plato and Kant. While neat in a way, this sort of sociological definition seems to me at best a fallback, if no more substantive definition succeeds -- and it strains to accommodate ancient Chinese and Indian philosophers and the possibility of philosophy on other planets or in the distant future when all memory of us has been lost.

Method or content seems the better hope. But is there a distinctively philosophical method or a set of distinctly philosophical topics?

Philosophy cannot, I think, be defined methodologically as an a priori discipline distinguished from the sciences by its focus on truths discoverable from an armchair and immune to empirical refutation. There are, in my view, no such truths. (I know that's contentious.) Speaking more moderately, it doesn't seem that philosophy is limited to such truths. Philosophers of science take stands on the nature of spacetime and natural selection, stands presumably empirically grounded and open to empirical refutation. Atheists and religious philosophers appeal to the appearance, or not, of benevolent design. Philosophers of mind connect their views with those in empirical psychology. Is there then some other method constitutive of philosophy? What could it be? Philosophy seems, if anything, methodologically pluralistic (especially with the rise of experimental philosophy).

A topical characterization of philosophy is more inviting: Philosophers consider such questions as the fundamental nature of reality, the nature of mind and knowledge and reason, general questions about moral right and wrong. But physicists and psychologists and religious leaders also consider these questions. Are they being philosophers when they do so? And what about the possibility of new philosophical questions? Also, a laundry list of questions is not very theoretically appealing. What we want to know is what those sorts of questions have in common that makes them philosophical.

Here's my view: To practice philosophy is to articulate argumentatively broad features of one's worldview, or -- derivatively -- to reflect on subsidiary points crucial to disputes about worldview, with an eye to how they feed into those disputes.

On this view, the empirical is no threat to philosophy. In fact, it would be nuts to develop a broad worldview without one's eyes open to the world. And although the empirical is deeply relevant to philosophy, no set of experiments could ever replace philosophy because no set of experiments could ever settle the most general questions of worldview (including, for example, the extent to which we should allow our beliefs to be governed by the results of scientific experiments). No science or set of sciences could aim at the broad vision of philosophy without thereby becoming philosophy -- becoming either bad philosophy (simplistic naturalized epistemology or cosmology, with substantial philosophical commitments simply assumed without argument and masked behind a web of scientific technicalities) or good, subtle, empirically-informed philosophy, philosophy recognizable to philosophers as philosophy.

This view of philosophy also, I think, properly highlights its importance and its centrality in academia.

I have been accused of aiming to destroy philosophy -- especially metaphysics and ethics -- replacing it with something empirical. However, philosophy is indestructible. People will always argumentatively articulate broad features of worldview. And I myself, even in my most empirical inquiries, aim to do nothing else.

Update, Oct. 2: Joachim Horvath points out in the comments section that important aspects of our worldview include the evolution of human beings from earlier primates and the falsity of geocentrism. But should exploring such questions count as philosophy? My own view is that their being empirical questions doesn't make them unphilosophical, and I would count Darwin and Huxley, Copernicus and Galileo, as doing philosophy when they put forward and defend such broad theses about the position of human beings in the universe. Likewise now, when we know so little about consciousness, the empirical study of basic facts about consciousness -- facts basic enough to count as central to a broad worldview -- should count as philosophy. Of course, later biologists, astronomers, and maybe consciousness scientists who get into narrower questions not involving broad features of our worldview are no longer doing philosophy on my conception. Thus, on my view, doing biology, or astronomy, or psychology can be way of doing philosophy. Perhaps in this respect my view of philosophy diverges more from the mainstream than may be evident on its face from the original post.

Friday, September 26, 2008

Is Everything that Breaks Breakable?

Well, see, I was working up this neat little post on the subjective location of visual imagery. Do some people experience visual imagery as located inside their heads, while others experience it as located in front of their foreheads and still others experience it as in no location at all? But it turns out I've already written that post. Maybe this time I'd have found a bit more to say, but I'm afraid I stole my own thunder....

Still, something light and quick would be nice before I head over to Talking Points Memo and National Review to resolve my low blood-pressure problem. So how about the following question: Is everything that breaks breakable?

Strangely, this question has been bothering me recently. (See, I really am an analytic philosopher after all!) Now, if "breakable" just means, "under some conditions it would break" then everything that breaks is breakable. But then everything solid is breakable (and maybe some things that aren't solid, too, such as machines made entirely of liquid). That seems to rob the word of its use. So maybe "breakable" means something weaker, like "under less-than-highly-unusual conditions it would break". Of course, then when those highly unusual conditions occur (someone takes a chainsaw to my garbage cans, an earthquake rends the giant granite rock) something that wasn't breakable broke. Hm!

Why do I care? Well, other than the fact that I haven't entirely shucked my inner nerdy metaphysician, the following arguably parallel case lies near my interests: If believing that P is being disposed to judge that P, does an actual occurrence of judging P imply belief that P? (Readers who've visited recently will note the connection between this question and Tuesday's post.)

If this seems to be just a matter of deciding how to use words, well that's what all metaphysics is (I contentiously aver), so this fits right in!