The Problem of Psychology

The Problem of Psychology

Everyone knows that psychology is a difficult subject, especially psychologists. But why? Why isn’t it as advanced as physics and chemistry, or even biology? The mind has been around for a long time and so have our cognitive faculties (though less time), and it’s not as if we are not curious about it. Yet our psychological knowledge seems primitive in comparison, laughably superficial. What is the problem? It is commonly said that the reason is that psychology is a young science; we just haven’t been doing it as long as the other sciences. This is an unconvincing answer: why haven’t we been doing it as long? Is it really being claimed that if only we had started earlier psychology would be as advanced as the other sciences? It seems to be held in some quarters that philosophy was holding psychology back: it kept psychology to itself and wouldn’t allow it to employ scientific methods for some obscure reason. Tosh! Natural philosophy used to deal with physics and chemistry and yet that didn’t stop them from developing into the empirical sciences. Clearly, there must be a deeper reason why psychology is relatively immature; but you will not find a psychology textbook that explains why. After all, we have direct access to our own minds by introspection, and we interact with people with minds every day—and yet we don’t know much serious psychology. If we had that kind of access to the stars, we would have developed astronomy much earlier than we did! And it simply isn’t true that applying scientific methods in psychology has led to ground-breaking discoveries comparable to those of physics, chemistry, and biology; psychology is still relatively retarded.

Is it that minds are just incredibly complicated, much more so that lumps of matter, stars, and organisms? It might be true that minds are more complicated (whatever that means), but it is hard to believe that this is the reason for the lack of advancement. It isn’t as if we have looked into the mind and thought “Wow, that is socomplicated!” The mind isn’t even that big. The reason isn’t ontological—based on the nature of the mind itself. No, it is epistemological: we don’t have the right means to know it. It is the epistemic capacities of psychologists that cause the problem not the intrinsic nature of the mind. This is really quite obvious: we don’t have the ability to see directly into the mind, or to examine it under a microscope. The human senses are not geared to acquiring knowledge about minds. Psychology would be different if we could inspect the mind up close and simply see how it works. Nor is it introspectively accessible in its deep workings. We are cognitively cut off from direct knowledge of the mind and have to infer it from observable clues. A glaring example of this is child development: we just don’t remember much about our childhood. Thus, we can’t just ask people what was going on in their minds when they were babies, or ask babies themselves. Adults have no memories of these early psychological stages. We can’t settle the question of innate ideas by asking people whether they had this or that idea in the womb. A Freudian can’t ask a middle-aged man whether he desired sex with his mother as an infant and expect to get an answer. And the same is true of other areas of psychological interest: perception, intelligence, memory, attention, imagination, reasoning, motivation, emotion, personality, language, dreams, creativity, etc. We just don’t have access to these faculties by any direct means; we have to approach them from afar with whatever means we have at our disposal. Psychology is difficult because we are not cut out for it (we are hardly cut out for scientific knowledge in general, which is why it took so long to develop). Biology (the genes) didn’t make us natural psychologists (in the scientific sense). Why should it?

We can appreciate the true situation by imagining a species of alien psychologists with different epistemic capacities. Suppose these psychologists knew their stuff innately: they were born knowing the correct theories of the mind, their own and others. They know scientific psychology as we know our language—instinctively. For example, they know exactly how many kinds of memory there are, how memories are stored in the brain, what forgetting is, etc. Nothing about the mind is puzzling to them; and their predictive powers are phenomenal. They have all the psychological knowledge we will have in a thousand years and more. For them psychology is old hat, common knowledge, nothing to write home about. They know how the mind works (nothing to do with computation, it turns out). When these aliens come to Earth, they instantly figure out everything about human psychology (it’s a good bit simpler than their psychology). They are born equipped with all the psychological knowledge anyone could need (they also have advanced knowledge of physics). We know what we know of scientific psychology partly on the basis of our innate knowledge of folk psychology; they just know more than we do innately. We probably would know almost nothing of psychology without our innate endowment, but that innate knowledge doesn’t extend to the whole of the mind. It is contingent what we know innately, and we just don’t know that much psychology that way; we have to acquire such knowledge as we have painstakingly. Unfortunately, our scientific methods are not well designed for gaining deep psychological knowledge—we can’t even use the psychological equivalent of particle accelerators. We have yet to observe a psychological particle, if there are any. Psychology is difficult because we are not naturally much good at it, sorry to say. All our sciences are limited by our human science-forming capacity (to borrow Chomsky’s term); well, our psychology is very so limited. In some possible worlds we might be born expert psychologists, but not in the actual world. Do you think other animals could make much progress with establishing a scientific psychology? The problem is not that we came to the subject late in the day; it is that we came to it. The problem of psychology is our psychology as psychologists. The problem of cognitive science is the cognitive science of us.

The problem is acute in clinical psychology and psychiatry: we understand these subjects so poorly because we don’t have access to their causes and underlying processes. We can’t just look into the machinery and see what the pathology is and how to cure it. Freud used free association and the like, but this approach is limited at best. If only we could make the unconscious conscious, but no one has come up with the technology to do that. None of these problems will be solved merely by the passage of time and big grants, though we may be able to make some useful inferences. But don’t count on it; psychology might be in much the same state a thousand years from now, give or take a bit. Physical medicine might improve tremendously in the coming years, but mental medicine is a different proposition. Minds are just hard for us to know about, our own and others. How do we remember? No amount of remembering will tell you that. The problems of psychology are methodological, i.e., epistemological, and they are deep-seated. They are endemic not historical.[1]

[1] The methodological problems of other sciences were solved, partially at least, by fortuitous circumstances and technological innovation: microscopes, telescopes, fossils, light transmissions from space, prisms, X-rays, particle accelerators, etc. But no such luck has helped us in psychology: no instruments that reveal inner structure and hidden operations, no information-laden light coming from within the mind, no dissections, no atom smashers, no litmus tests, no staining techniques. We are on our own in psychology (the tachistoscope is a limited instrument). No wonder we know so little. Just think how retarded astronomy would be if we received no light from elsewhere in the universe and had never invented the telescope! We really need something like Mr. Spock’s mind-meld or a working mind-meter or souped-up telepathy. But we are stuck with training our eyes and ears on external behavior.

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Existence Explained

Existence Explained

Probably the most infuriating question in philosophy is the nature of existence. I have racked my brains over it lo these many years and come up with nothing.[1] Now at last I think I have found the solution, and it’s not what you would think. It fits the facts. So, right here, right now, I will give you the solution—dim the lights, Geoffrey. But first a quick reminder of all the dud solutions, the runners-up, the heroic also-rans (let’s have a round of applause for them): to be is to be the value of a variable (or the reference of a pronoun); to exist is to have the second-order property of instantiating a property; to exist is to have an unanalyzable first-order property of existence; to exist is to be an occupant of space; to exist is to be an idea in the mind of God; to exist is to be spoken of in a text; to exist is to have causal powers; to exist is to be an object of thought; to exist is to be a sense-datum; to exist is to be socially constructed; to exist to be not imaginary; to exist is to be material; to exist is to be mathematical; to exist is to be useful. A rum lot really. Hardly worth refuting. So, let’s get to the winner, the star of the show, the incontestable champ.

And the winner is: to exist is to be detachable. Yes, I know it sounds a bit bathetic, but stay with me awhile, be patient. The intuitive idea is that an existent thing is a thing that can be detached from other things—separated, disconnected. A non-existent thing is a thing that cannot be detached from other things. This is intended as a statement of necessary and sufficient conditions, a classical conceptual analysis. We are not pulling any punches or speaking metaphorically. This is what existence is. You need to see the analysis in action to appreciate its merits. What is the paradigm of an existent thing? Material objects, of course (the paradigm of our modern sensibility anyway—not the gods or anything like that). Perceptible objects in space—substances. They can be separated from each other, detached, disconnected. They come to us in conjunction with other things, but they can be physically moved and detached in thought. They don’t depend on anything else to be what they are. The table is detachable from the chair, even though they are next to each other in actuality; they will still be there if separated spatially. They are also detachable from the perceiver. They are independent things (the old definition of a substance). To think about one, you don’t have to think about the other. Contrast these things with imaginary objects: here you can’t detach the perceiver; no perceiver, no object. If no hallucinating perceiver, then no pink rats. Pink rats are necessarily attached to perceivers (as things are), unlike brown ones. The latter exist, the former don’t.

Now consider some intermediate cases, starting with universals. Plato thinks they are detachable from particulars: this is what constitutes their clear existence for him. Aristotle disagrees, so universals for him have less than complete existence—perhaps no existence at all. Fictional entities are not detachable from the minds of their creators, so their existence is in doubt; some say they are the paradigms of the non-existent (even more so than hallucinated objects). Meinongian objects seem indissolubly connected to minds (e.g., the golden mountain), so their existence is questionable, though a dose of subsistence is sometimes allowed. Then we come to some hard cases: numbers, mental states, ethical values, space, time, God, meaning, events, shadows, holes, shapes, concepts, selves. All of these have had their existence rudely denied: the question is why. Is the number 2 separable from other things—other numbers or mathematical minds? Could it exist on its own? If yes, it indisputably exists; if not, its existence comes into question. Does a particular thought exist? That depends on its detachability from other thoughts and from the brain. Holism undermines individual existence, and so does inseparability from the brain (materialist reductionism). Ethical values strike people as not detachable from natural facts, e.g., societal norms, so their existence comes into doubt. Ethical realism is better off under ethical autonomy (ethical truth before moral agents). Space looks in danger of disappearance if it cannot be detached from the matter it contains. Time starts to look wispy if events are removed. God cannot survive dependence on human belief. Meaning becomes existentially questionable if it cannot be detached from words—a mere shadow of language. Events lose all substance if they are constituted by objects and properties and are incapable of existence without them. Shadows are too attached to the bodies that cause them to be accorded genuine existence. Holes cannot be detached from what they are holes in. Shapes go up in smoke if detached from physical things, or are thought to. Concepts are found wanting if not detachable from language. Selves can have no being if they cannot be disconnected from bodies and mental states. In all these cases, the applicability of our basic concept of existence is called into question: the more attached a thing is, the less real. Those who resist these conclusions do so by insisting that the questioned items are detachable; they picture worlds in which the items exist autonomously. They can exist in splendid isolation! I needn’t go into all this; the point is that existence turns on the detachability question. If it turns out that material objects are really constructions from sense-data, then they too will have their existence queried. If it turns out that mental states are completely dependent on brain states, then they will be in peril of being relegated to the ranks of nonbeing. The central point of the concept of existence is that the thing in question can exist separately: the more detachable, the more real. This is why the primary cases are material objects in space and imaginary objects in minds: the former can exist in the absence of minds, but the latter cannot. The idea of existence is closely linked to the idea of objectivity, and objectivity is a matter of detachability from the subjective perspective. We say something is merely subjective when it doesn’t really exist. Realism is typically an affirmation of detachment from human concerns. Anti-realism is a claim of attachment to human concerns.

One nice feature of this theory is that it applies to any category of object: we don’t end up favoring one kind of object over others—physical, mental, or abstract. The definition covers all these cases. It also prescinds from epistemological considerations; it is purely ontological. And it brings out a latent relational aspect of existence: for x to exist is for x to be detachable from y. It thus provides a genuine analysis not just a trivial synonym (“to exist is to have being”). We have fashioned a concept that encapsulates the facts of detachability. If I want to say that pink rats are not separable from a perceiver’s mind, I simply say they don’t exist (are not real). If asked to explain what I mean, I say “Pink rats are inseparable from the perceiver’s mental state and dependent on it”. The word “exists” is very much a catch-all term, topic-neutral, quite abstract; and also, essentially contestable. It is a philosopher’s term with a theoretical meaning (more so than “true”). I like the definition because it injects new content into discussions of existence and doesn’t leave us with nothing substantive to say. It gets at the deep structure of the concept, lying just beneath the surface. Is there anything better out there?[2]

[1] See my Logical Properties (2000), chapter 2, as well as several essays on this blog. I came up with the present theory by going through every possible theory I could think of until something gelled.

[2] Why has it not been thought of before? Because of a tacit commitment to empiricism (the usual culprit): there is a hankering for something close to the perceptual—an existence sense-datum. But the concept of existence is a highly intellectual concept—it connotes an abstract structure. It involves a quasi-geometrical modal structure: the mind has to detach in thought one thing from another in an act of modal separation—a possible world, in effect. The concept of existence is a modal concept in that it requires conceiving of a possibility—this without that. For example, for me to recognize that a part of an object exists I have to construct a possible world in which the part is detached from the whole and considered by itself. This is nothing like seeing red. I doubt that any animals have this concept. We also have the difficult task of deciding whether one thing can exist without another—whether, say, a property can exist without a bearer. The concept is much more complex and problematic than traditional theories have realized.

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Do Events Exist?

Do Events Exist?

We have become accustomed to the idea of an “ontology of events”, either as a total world ontology or as part of our ontology. Are events all there is (no objects or substances), or are they just a part of what there is? Events exist—we think. Donald Davidson was a great proponent of a robust ontology of events, making use of them in the philosophy of mind (“Mental Events”) and philosophy of language (adverbs as predicates of events). Philosophers talk unhesitatingly about physical events. We quantify over events, commit ourselves existentially to them, treat them as ontologically on a par with physical objects. We think vaguely of them as beads on a string, ripples in water, notes in a tune. But are they real existents? Are they genuine particulars or individuals? Do they exist alongside ordinary objects as separate but co-equal constituents of reality? I am going to argue that their ontological credentials have been greatly exaggerated—there are no such things as events as commonly construed by philosophers. Not that no events ever occur—they happen all the time (see below)—but they are not the robust ontological baubles philosophers have supposed. There exists no such metaphysical category. The way philosophers use the word “event” is a misuse of that term, standing for nothing. The set of events in this sense is the empty set. The term “event” as a philosophical term of art is a meaningless term.

How is the word “event” used by non-philosophical speakers? The OED gives us this: “a thing that takes place—a public or social occasion”; it then cites contests in sports (athletic events). We are familiar with the phrases “event planner” and “It will be a great event”. Events are things like weddings, christenings, graduations, and birthday parties. They are not just anything that happens no matter how trivial and unnoticed. A tap dripping is not an event. Generally speaking, an event in this vernacular sense is something of human significance—something that matters (to us). Events are part of the human world, not the mind-independent objective world. Nothing is an event in the “absolute conception”—the world as it is independently of us (or other intelligent beings). This should set off alarm bells: philosophers have lifted this word from ordinary speech and tried to imbue it with a wider metaphysical meaning. The ordinary speaker would be bemused by the way philosophers have come to use the word. This linguistic move borrows a meaning from ordinary language but then stretches it beyond what it can bear. The fact is that we have no term of ordinary language with the extension intended by philosophers. The plain truth is that an event, properly so called, is something that happens that has meaning for humans. So, there are plenty of events, but they are not what philosophers have in mind—those things are not events at all.

We must then ask what philosophers mean by the term (they don’t generally tell us). Here we get no univocal answer; the alleged ontology has no clear definition. This comes out in two ways. First, theories of the nature of events differ: are they simply the instantiation of a single property at a time by an object, or are they autonomous particulars instantiating a range of properties? That debate has raged (or trickled) for years and I won’t go into it. Is it true that being red at time t is an event? Hardly. Do events simultaneously instantiate the range of properties that objects do? Nope. Second, no criterion of identity for this alleged class of particulars has been proposed that does the job; identity of causes and effects is patently circular. So, the class of events in the philosopher’s technical sense is ontologically ill-defined and theoretically elusive. The indicated conclusion is that that ontology is spurious. It survives because of examples like explosions and wars, but these are events in the vernacular sense, since they are of human significance. Of course, stuff happens all the time, most of it of no human interest or account, but this doesn’t warrant application of the word “event”; it is just things coming to have properties or changing properties. It was an event for me when I graduated or got married, but not when I took a breath at noon yesterday or buttered a piece of toast this morning. The big bang was an event, as was the extinction of the dinosaurs, because these strike us as momentous; they are not events for the universe objectively considered. Then too, an object changing its properties at a time is nothing over and above the object, its properties, and a time; there is not some further entity, an “event”, on top of these. Being an event in the ordinary sense is a projected property, an anthropocentric property; there are no objective events. The universe was not eventful before humans (or other intelligent beings) came along; it was just shit happening, or less than shit (since shit can be an event—but I digress).

These reflections prompt a striking (even scintillating) thought: there are only mental events—there are no physical events. For physical events, considered objectively, are not events at all, since they have no significance for us (think of stuff happening in some remote unknown galaxy). But many mental events really are events, because our minds matter to us—weddings are events because the emotions that go with them matter to us (they are the true events of the day). We might even venture to say that what happens to us mentally is always an event, so focused are we on our own mental life. That pain yesterday was an event because it really got my attention. Thus, we might be persuaded that every mental change is an event, though these events may vary in their salience or “eventitude”. But there are no physical events, i.e., mind-independent events that matter to no one. Physical events don’t exist while mental events are only too existent. We can be ontologically committed to mental events, as events, and commit no linguistic or conceptual solecism; but we cannot do the same with physical events, there being none. Not even a massive explosion on an unknown star is an event (event for whom?). There is a well-defined ontology of events (weddings, graduations, etc.), but it isn’t what philosophers need for their theories, viz. uneventful events. Thus, there can be no identity theory of mental events and physical events (types or tokens), no general event ontology, no causal relations between events, no behavioral events, no metaphysical theory of events, no quantum events—not in any robust sense anyway. Stuff happens, but this doesn’t consist in things called events coming and going. The lion sleeps in the jungle, but there is no event of the lion sleeping there; that was really a non-event. There are jungles, lions, and sleep, but no additional entity of lion-sleeping. It always felt odd to speak of an event of buttering the toast in the bathroom (Davidson); now we see why. The alleged ontology of events reifies property instantiation under cover of ordinary language.[1]

[1] Suppose we have an ontology of sense-data and nothing else. We then assume that sense-data are significant events in someone’s life, as is not unreasonable. Then we will think that the world consists of events in something like the ordinary sense. It will then be easy to pick up on this use of “event” and transfer it, illegitimately, to the physical world. Hence, a world consisting of physical events. Things no doubt change, but there is no event of changing, as this is understood by philosophers. Events are not an ontological category which we have only recently recognized by reflecting on the logical form of action sentences. They carry a strong whiff of Meinong, or of possible worlds.

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Song Therapy

Song Therapy

The therapeutic power of music is well-attested (see Oliver Sacks’ Musicophilia). But we don’t hear much about song specifically—that is, singing. With no scientific basis whatsoever, I am going to assert that singing is therapeutic (and I will brook no dissent). Oddly enough, I think this is particularly true for the vocally challenged. I won’t go into my philosophical and psychological reasons for asserting this—they are at least as good as Freud’s—but will skip immediately to practicalities. Here’s what you do: you pick a song you are particularly fond of, which you would like to be able to sing—as it might be (I speak autobiographically) This Boy by the Beatles. Try not to pick an easy song, but go for one with a challenging section (usually high-pitched). Now learn the lyrics till you have them down without thinking. You can do this just by memorizing them cold or by listening to a recording of the song and singing along till you have absorbed the lyrics. Now begin to concentrate on the melody and rhythm, a bit at a time, going over them repeatedly. Do this by listening to the song and singing along to it. Repeat this for about a week every day, possibly a few times a day. You may have to repeat a particular passage many times, and it may sound horrible, but keep at it. If you choose, say, Over the Rainbow, be prepared to repeat the first word many times—”Somewhere!” There is a big pitch jump in there and you need to work on it. Now just keep on singing the song over and over again (a hundred times will do) till you can do it without thinking. Keep trying to improve technically. Now here is the vital point therapeutically: do everything in your power to inject emotion into your voice. Ideally, you should feel teary at some point; songs are designed to do that. Really lay it on thick. Don’t be afraid to be syrupy if the song calls for it (you might want to tackle Love Me Tender). If you feel brave, sing it in front of someone you trust. If you are very committed, try to learn Mother by John Lennon—it’s extremely emotional and difficult to sing. When you have learned your chosen song, you can move on to another song; repeat the procedure with this song. Don’t settle for a mediocre half-hearted performance. Do this for a few months and keep note of the therapeutic benefits. I will be interested to learn about your progress, vocally and emotionally.

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Causal Reality

Causal Reality

Consider Michelangelo’s statue of David: heavy, large, made of marble, beautifully shaped. Aristotle would say that it consists of matter and form—its composition and shape. According to him, these are both causes of the statue—material cause and formal cause. Together, they make the statue what it is; they cause it to be what it is (making is causing). It is because of them that the statue exists. In general, Nature gives things a nature in virtue of matter and form.[1] Matter and form are ontologically basic. But what antecedent facts produced the statue? What is its efficient cause? Whatever that is it must cause the matter and the form of the statue, so what caused the matter and what caused the form? The cause of the matter is not immediately obvious and took some science to discover–geological science. It goes back to what caused the matter of the earth—the minerals, metals, etc. We can certainly report that matter was not caused by man; Michelangelo didn’t cause it. He found it ready-made. No one thinks that Michelangelo had the power to cause (create) the piece of marble that constitutes the statue. So, we can say that the matter of the statue was efficiently caused by nature, geologically understood. It is a product of nature not man. But what about its form, its shape? That was not caused by nature but by man, a specific man. The efficient cause of the form of the statue was the actions of Michelangelo.

In virtue of what was Michelangelo the cause of the form of the statue? What was it about him that made the statue have the shape it has? An old-fashioned answer would be his substantial body and soul; a modern answer would be the atoms of his body and the workings of his brain. That is, his physical and psychological characteristics. These fall under Aristotle’s scheme: matter and form (stuff and morphology). The efficient cause of the statue’s shape consists of a combination of the matter and form of an antecedent object, fact, or event—and nothing else. There isn’t some third attribute that figures in the causal story over and above the material and formal cause of the causing agency (a particular sculptor). An efficient cause has its causal powers in virtue of its matter and form; there is not some third causal factor exemplified by the so-called efficient cause. In other words, efficient causation reduces to the other two kinds of causation; they are what is basic to causal reality. They are the true causes not some indefinable “efficient” cause. There are no efficient causes, though there is a relation labelled “efficient”: all causes are constituted by matter and form. This is why we have that peculiar label “efficient”; there is no distinctive causal reality corresponding to it. We could equally call it antecedent causality, or sequential, or temporal. It isn’t a further type of causal factor, just one way in which the other factors operate—across time (as well as at a time). Aristotle was wrong to include it as a fourth type of cause on all fours with the other three. Causal reality consists of the material and the formal, and that’s it.

We can generalize from Michelangelo’s David; it exemplifies a general pattern. Whenever you have a causal sequence, the operative factors are material and formal. Births and deaths are the same: some antecedent combination of matter and form brings about an effect; there is nothing additional to these (something called efficiency). Atoms in certain configurations, as we would put it today—arrangements of stuff, basically. Because that is fundamentally what nature is. This applies also to mental causation, even when not construed in materialist terms: the “matter” might be an immaterial substance—this is still the “material cause” of the mind. Similarly, the form of the mind is not necessarily a geometric concept; it can be any mode of arrangement or structure (“architecture”). Cartesian substances act causally in the same way as material substances; their causal powers depend on their composing stuff and their structure. Causal efficacy is always a matter of matter and form. There are thus two factors operating in any causal interaction, both individually necessary and taken together sufficient, which we are calling by their Aristotelean names. Sometimes one predominates over the other in a causal interaction: sometimes it is only the matter that counts, sometimes form is the important factor. Mass matters in gravitational interactions, shape matters in house building. What I want to emphasize is that efficient causation is not itself a causal power, or the basis of one; this is just a way of talking about the other two. The cement of the universe consists of the actions of matter and shape (roughly); there is not also a third element, efficiency. It matters that there is a duality here—that causation divides into two components. It isn’t a unitary thing: we have matter and form, form and matter. Pure form can’t cause anything, and pure matter can’t either; each needs the other to power the universe. God had to install both in order to get the universe up and running, but he didn’t need to add something called “efficiency”. We might even say that necessarily causation exploits two and only two ingredients: for how could a third ingredient change the course of history, as dictated by matter and form? What else could nature consist of? How could causation be fixed by anything other than matter and form? Everything has to be made of something, and everything has to have some sort of form—and there can’t be anything else. Even God must fall under this metaphysical duality (divine substance and divine form)—he has a material cause and a formal cause that fix his causal powers. He engages in efficient causation, as in creating the universe, but he has no attribute corresponding to “efficiency”. A modern-day Aristotle would say there are two types of cause, material and formal, and leave it at that. What is called an “efficient cause” is really one manifestation of a material cause and a formal cause; these are the bedrock of the cement.[2]

[1] I won’t discuss Aristotle’s notion of final cause, which is really too antiquated to survive the passage of time. But his notions of matter and form are still relevant today, suitably updated. This is one dualism we can’t do without—which is not to say it doesn’t raise difficult questions. It might even be said to be deeply mysterious.

[2] Historically, at least since Hume, efficient causation has been the focus of attention, with material causes and formal causes relegated to Aristotelean antiquity. I am inverting that priority, seeing efficient causation as resting on the other two. It is material and formal causation in action, so to speak; it is nothing without them. The causal structure of the universe is determined by its material and formal nature, with efficient causation superimposed. We tend to take this basic structure for granted, our attention being grabbed by the passing show (one damned thing after another); but it is really the foundation of the whole causal set-up. Events in time are just substances (matter and form combinations) strutting their stuff (while keeping excellent form). Event metaphysics has ruined the philosophy of causation; and event metaphysics is the result of empiricist assumptions—so, we must reject those assumptions in order to get our causal house in order. Aristotle, happily, was not hampered by empiricism. In the beginning was the material-formal thing not the deed. Actions depend on actors.

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An Identity Theory of Causality

An Identity Theory of Causation

Let causal dualism be the doctrine that cause and effect are separate things, one following the other in time: first the cause, then the effect.[1] There is no overlap between the two; they are quite distinct events. The short circuit caused the fire: one event (or state of affairs) caused another event (or state of affairs), period. The billiard ball striking another billiard ball made it move away–the striking and the moving being different occurrences. This is opposed to the view that talk of cause and effect is really talk of the same thing: we have a dualism of descriptions not a dualism of objects. Logically, the case is like mind and body: do we have a dualism of objects or a dualism of descriptions (senses, perspectives)? Granted we have causal interactions, but do these consist of a cause-effect pair, discrete and asymmetric, correlated but not identical?

One billiard ball strikes another billiard ball and that ball moves away—the former causes the latter. These seem like distinct existences. But consider: the second ball causes the first ball to slow down, perhaps stop in its tracks; it impedes the motion of that ball, which would have gone on in a straight line if not obstructed. We can imagine someone putting the impeding ball there on purpose so as to secure the result in question—to get that effect. One ball causes the other to move away (acceleration), but that ball causes the other to slow down (retardation). The causation was reciprocal. How many things happened? Can’t we say there was just one, a collision of billiard balls? There are two ways of describing it, but only one thing was done—sending one ball into another. The moving away and the stopping are aspects of the same event. What we call the effect (moving) actually caused a change in the cause (stopping). The effect had an effect on the cause. The stopping and the moving were aspects of the same basic event—the collision. Collisions affect both parties—the impact is mutual. There was an event of collision and it can be described as causing a ball to move or causing a ball to slow down. Something happened between the two balls, and that is the fundamental causal reality. That something was highly localized: momentary contact between parts of the surfaces of the two balls. The rest of the balls is strictly irrelevant to the causal nexus. There was a localized touching event and that is what led to the two effects of moving away and slowing down. The touching event was the core of the causal interaction; it can be described in cause language or effect language—a touched b or b touched a. The fact is that a and b touched each other. This symmetrical touching is the causal reality. It isn’t that the cause is a separate thing from the effect—as if the moving ball were merely an effect and not itself a cause. The touching is both cause and effect; it is both what caused the moving and what caused the stopping. It isn’t that causes are active and effects passive; both are active and passive. Every causing is a case of being affected and every being affected is a case of causing. It isn’t that some things are intrinsically causes and some things are intrinsically effects, and never the twain shall meet; all causation is both. One man’s cause is another man’s effect, and one man’s effect is another man’s cause. There could be a game of billiards in which the sole purpose is to block the other player’s balls: you score points when you force your opponent to make contact with your balls, while he tries to sink his balls into the pocket without touching your balls. The effect you are seeking is his ball making contact with yours. What we call the effect is relative to the point of the game. As far as nature is concerned, everything is both a cause and an effect; you are talking about the same thing from different points of view. Objectively, there are just symmetrical collisions—mutual touching. A cause is a touching and an effect is a touching—the same touching. Hence, the identity theory.

Suppose you press your finger into a piece of soft rubber. You cause it to deform into a dent; the dent, we say, was an effect of your finger pressure. But the rubber also put up some resistance to your pressure and caused your flesh to shift a bit; the shift was an effect of the rubber’s resistance. The effect caused an effect on the cause. Yet there was only one thing going on—finger and rubber being pressed together. You pressed and it pressed. The cause was the effect: the finger pressing down was the rubber pressing back. The purpose of the act could have been to exercise the finger, in which case we would have described this as the effect and the rubber the cause; while if we wanted to make a dent in the rubber, we would have said that the finger was the cause. There is causing and effecting, and these are the same. There are causal nexuses, and that’s all. Causal relations are not one damn thing after another, causes asymmetrically preceding effects; they are simultaneous reciprocal interactions, symmetrical links. When Newton said that for every action there is an equal and opposite reaction, he was expressing much the same point: causation always cuts both ways and is essentially an action-reaction nexus. It is better to speak of causality not of cause-effect relations. Effects arecauses, as the mind is the body (for an identity theorist). Our customary talk of cause and effect is pragmatically shaped; metaphysically, there is no such sharp division. Does the Sun cause plants to grow via photosynthesis? You can talk this way, but remember that plants cause the Sun’s rays to be absorbed and used in photosynthesis (they affect the Sun’s light). These are part and parcel of the same interaction: photon absorption. Causal dualism imposes a spurious dichotomy on causality, forcing causes and effects into exclusive categories; in reality, causality consists of multiple causal nexuses that can be variously described. Thus, I prefer to speak of causal monism—a causal identity theory.

If we switch our attention to objects (substances) and causality, we get a clearer picture of the metaphysics of causation. The ontology of events in discussions of causality is only part of the causal picture. For it is clear that there are no intrinsically cause objects and intrinsically effect objects; there are just interacting objects. The Sun warms the Earth and the Earth absorbs the Sun’s energy. Objects interact with their environment all the time, acting and being acted on. If you cut down a tree, it blunts your blade; the saw is both a cause object and an effect object. There is no sense in trying to classify it as one or the other. An identity theory of object causation is the indicated position. Neutral monism about causation is the way to go. The world is not inherently divided into causes and effects; it isn’t the totality of these. The causal cement of the universe is not a compound of causes and effects (like H2O), i.e., distinct ontological categories; it is a totality of causal nexuses. We carve these up in various ways, using the concepts of cause and effect; but it is a mistake to project this division onto reality, as if we had hold of distinct metaphysical natural kinds. What we call cause and effect is merely the appearance of causal reality.[2]

[1] I think causal dualism is endemic to philosophy, especially analytical philosophy, and perhaps to human thought generally. It may help the reader to keep in mind Davidson’s treatment of causal statements, which crystalizes the doctrine in question; also, the positivist way of thinking about causality, biased as it is towards epistemological considerations (how we experience causality). I am trying to peer into the deep metaphysics of the subject, not the logical form of causal statements or how we experience and know causal truths. I want to grasp the ding an sich.

[2] This paper was difficult to write. It required me to think hard about matters that are difficult to grasp and even more difficult to express; I felt always on the brink of saying something strictly false, but essentially true. I won’t be surprised if my readers react with bemusement. It really isn’t easy to see into a reality that differs from our ordinary ways of talking and thinking. Causality has always been a very tricky subject. As Hume realized, it taxes our intellectual resources. I don’t think I’ve ever read anything on the subject I found intellectually satisfying. Most philosophers wisely steer clear of the subject. It ought to be easier.

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Science and Philosophy

Science and Philosophy

Many scientists have got it into their head that the purpose of philosophy is to help them with their science. They then complain that it isn’t much help, if any. The complaint would be reasonable if their assumption were correct. But it isn’t. Philosophy is a different subject entirely. Their attitude is like philosophers thinking that the aim of science is to help them with their philosophical problems. These scientists are like lawyers who think the job of philosophers is to help them with their legal cases, or farmers who think philosophers should be helping with the farming. The idea seems to be that philosophy used to be an adjunct of religion, but science took over from religion, so philosophers should switch their interests accordingly. Or else they just think science is the only thing worth knowing (who taught them that?). They appear to believe they are the gentlemen and philosophers their manservants (“handmaidens”). Jeeves to Wooster, as it were, but with a less spectacular Jeeves. The fact is that the philosophical Jeeves is off doing his own thing, far removed from Bertie’s scientific endeavors. The two subjects are miles apart. Of course, it is good to know a wide range of things—philosophers should know some science and scientists should know some philosophy, just to be well-educated. In my experience the educational lack is greater on the science side, since science is taught in schools and philosophy isn’t. I know many philosophers who are quite good scientists, but virtually no scientists who are even halfway decent philosophers. I myself was trained as a scientist (psychology) initially, and the scientists I knew were generally completely ignorant of philosophy and had no interest in it. If a philosopher chooses to do philosophy of science, he isn’t trying to do science in some amateurish fashion; he is doing philosophy. How philosophy could help one design experiments beats me, let alone analyze their results. Science is one thing, philosophy quite another. In my brain, psychology and philosophy occupy different compartments, rather as tennis and music do. The purpose of philosophy is not to help scientists think more clearly, or some such worthy (and dreary) aim; it is to solve philosophical problems—or at least understand them better. I am not today trying to explain what philosophical problems are, or how to set about solving them; I am simply asserting that philosophy is not the manservant of science. Nor has it ever been since the time of Plato. Philosophy is not concerned with finding out the center of the universe or how animals evolved or what matter is made of—or helping scientists find out those things (how?); it has its own subject-matter and methods. If a scientist wants to find out what these are, he or she could have a look at the curriculum of a typical philosophy degree—or even more onerous, take a philosophy course. It’s not that hard.

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Identity, Causality, and Caterpillars

Identity, Causality, and Caterpillars

Suppose you don’t know the true relationship between caterpillars and butterflies: you don’t know that the former turn into the latter by metamorphosis. You notice the two are often found in the same vicinity, but you don’t know that they are really the same organism at different stages of its life. You assume they belong to different species. You decide to investigate these creatures: you place five butterflies and five caterpillars in a sealed container to see what happens. Lo and behold, when you return some time later you find there are now ten butterflies and no caterpillars—but you never witnessed the transition through the chrysalis stage. You form the hypothesis that caterpillars cause butterflies—without being butterflies. For some reason the one causes the other, as if a flea could cause an elephant; it seems miraculous but you feel driven to accept it. Things cause other very different things all the time. Now suppose you conduct more diligent observations and come to the conclusion that actually they were the same organism all along, but with a different appearance at different times; you have discovered metamorphosis. Question: would you conclude that you were wrong earlier to suppose that caterpillars cause butterflies? I think not: you would hold that the causal claim is true despite the identity—that the two propositions are logically (metaphysically) compatible. And you would be right to do so, in my opinion. Isn’t it just straightforwardly true that caterpillars are the cause of butterflies (not flowers or bees or hummingbirds)?

Now suppose you are an alien visiting Earth and you observe babies and adults, but you don’t know that babies grow into adults while retaining their identity. You think these are creatures of different species that are often found in the same vicinity. After some experiments (see above), you conclude that babies cause adults but are not the same as them (they look so different). Then later, after more careful observation, you reach the startling conclusion that babies and adults are the same creatures at different stages of a single life. Do you revise your earlier causal judgment? No, you conclude that there is a causal relationship between them and that they are identical. Identity does not preclude causality. You would be right to do so, in my opinion.

Now imagine you are an astronomer investigating the planets, about whose nature you know very little; you vaguely suppose they are big fireballs in the sky. One you call “Hesperus” and another you call “Phosphorous”; you get it into your head that Hesperus causes Phosphorus—one fire in the sky ignites another fire in the sky (you don’t know how). Then you find out these two objects are actually the same hunk of rock hurtling through space. Well, I never, Hesperus is Phosphorus! Do you abandon your earlier causal judgment? You see no reason to; it has merely turned out that Hesperus and Phosphorus stand in both relations—identity and causality. The thing you see in the evening is the cause of the thing you see in the morning (what it does during the day you have no idea). Nothing else does—not the Moon or the Sun or Mars.

You have seen Superman and Clark Kent around and you begin to suspect a connection. Is one of them the cause of the other? It seems unlikely that Clark is the cause of Superman, given the former’s rather unimpressive persona, so you conjecture that Superman is the cause of Clark. No way they can be identical, given their very different abilities and sartorial style. Then one day you see Superman actually changing into his Clark Kent clothes and you decide, rightly, that the two are identical. Not only does Superman cause Clark Kent but the latter is the former, surprisingly enough. Again, you feel no inconsistency—correctly, in my view. You also note that causal contexts are not always referentially transparent (you can’t say “Clark Kent is the cause of Superman”, even though the two names have the same reference).

You are a budding physicist and chemist interested in heat, light, and water. You have been reading about molecules, photons, and gases, and you form some hypotheses: heat is caused by molecular motion, light is caused by streams of photons, and water is caused by molecules of oxygen and hydrogen. These hypotheses have notable explanatory virtues; you are hoping for a Nobel Prize. On reflection and further experimentation, you arrive at the view that heat is molecular motion, light is a stream of photons, and water is H2O. Does that mean you were wrong in your causal claims? I don’t think so: identity and causality are compatible. Water is causally explained by H2O and water is identical to H2O.

Finally, you are a neuroscientist interested in the brain-mind connection. You are convinced that the brain causes the mind and you assume they are distinct things (you might even be a Cartesian dualist). Later, you become persuaded that the mind-brain identity theory is true—should you give up your causal claims? Again, why should you—the two things are compatible. Believing the identity theory does not rule out believing the causal theory, both of which seem eminently defensible. We can have theoretical identification and causal relations. Pain can be an effect of C-fiber firing as well as being identical to it.

It is true that these doctrines are contrary to the way philosophers have talked of identity and causality for many years, but these ways of talking seem not to fit the intuitive facts. Causal relations don’t always require numerical distinctness.[1] We have to get used to new ways of talking.

[1] See my “Causality and Identity”. The present paper is intended to provide some intuitive data in support of that earlier paper. It doesn’t substitute for it.

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