This is a great OP--clear, well written, and, even more important, something I'm really interested about.
Certain big philosophical terms seem fundamental, yet cause big problems. Existence, being, real, cause, freedom, good, and true are a few examples. These terms have acquired meanings, and then more meanings, and then yet more meanings, resulting in camps of philosophy who seem to say opposite things using the same words.
Are these disputes non-substantive? True, they often revolve around terminological disagreements, but they are not about terms, or at any rate we don’t want them to be. We want them to be about the things to which they refer: about existence, reality, causation, the good, and what grounds what. The disagreements begin to look terminological when the debaters realize that they are talking past each other, using those fundamental terms in different ways. — J
Yes, this happens a lot. I have made the case many times that it's important to agree on the definition of a term at the beginning of the thread unless the discussion's specific purpose is to figure out what it means. I get lots of pushback on that position. In my particular case, the most troublesome concept is "metaphysics." That idea is right at the heart of my interest in and understanding of philosophy. I have my own understanding of what it means. If you've paid attention to my posts, you've heard me spout out about it numerous times.
The problem for me is that, sometimes, I don't want to talk about what metaphysics is, I want to talk about what the implications and consequences of my specific understanding are. I've had knock down drag out fights trying to keep my own discussions on subject. The moderators are often unsympathetic and unwilling to intervene. In my experience, every discussion of metaphysics turns into an argument about what the term really means. It never goes any deeper than that. I think the same thing is sometimes true of terms you identified--existence, being, real, cause, freedom, good, and true--and others.
One of the key concepts Sider has endorsed is “reference magnetism.” (He attributes the term to a 1984 paper by Harold Hodes, but it’s usually associated with David Lewis.) According to reference magnetism, we don’t simply assign words to things or concepts in such a way that our statements about them come out true. Truth on an interpretation isn’t enough. We also want the references of our words to have certain characteristics, certain external constraints on meaning. Here Sider’s preferred term is “joint-carving,” borrowed from Plato, by which he means “corresponding to actual ontological structure.” (I find the term disgusting, but it’s too central to Sider’s thought to be simply dropped.) — J
This is really interesting. For the record, I love the term "joint-carving." I think it gets right to the heart of the issue, although I'm not sure the idea there is some "actual ontological structure" makes any sense. This use of the term makes me think of a passage from Brook Ziporyn's translation of the Chuang Tzu. I'm going to hide it so it doesn't distract from the flow of my argument.
Reveal
The cook put down his knife and said, “What I love is the Course, going beyond mere skill. When I first started cutting up oxen, all I saw for three years was oxen,5 and yet still I was unable to see all there was to see in an ox.6 But now {30} I encounter it with the imponderable spirit in meC rather than scrutinizing it with the eyes. For when the faculties of officiating understanding come to rest, imponderable spiritlike impulses begin to stir,D relying on the unwrought perforations.E Striking into the enormous gaps, they are guided through those huge hollows, going along in accord with what is already there and how it already is. So my knife has never had to cut through the knotted nodes where the warp hits the weave, much less the gnarled joints of bone.
An example of joint-carving that Sider offers: Imagine two electrons, alike in every respect, plus a cow. We could find ways of grouping one of the electrons with the cow, forming the mereological item “electron-plus-cow,”and go on to say true things about it, and the remaining lone electron. Sider’s contention is that to do this is to carve reality very badly; it’s a “bizarre interpretation.” “The three objects should be divided into two groups, one containing the electrons, the other containing the cow. The electrons go together, and neither goes with the cow.” — J
The only reason electron-plus-cow seems like a bad way of carving reality is context--not any absolute ontological structure. I can think of not too goofy situations where two electrons and a cow belong together. An example--let's say I have one group containing two electrons and another containing sunlight, gravity, and gamma radiation. Which group does the cow belong in? To me, it's clear it belongs with the electrons--they're examples of matter while the other group includes only radiation. The so-called ontological structure in Sider's example is based on a narrow understanding of the context of human experience and thought. And that may be fine in a particular situation as long as it is recognized. It is not any kind of universal truth.
Sider is saying that the conceptual field has natural structural divisions, so when we try to match words with concepts we can be more or less perspicuous. A word like “exist” can be pulled toward one or more of these “reference magnets,” and made to refer to them. How does this happen? Through historical usage, primarily, which may evolve into ordinary language as well...
...The problem is, the “big” words are so encrusted with centuries of varying uses at the hands of varying philosophies, that they now get drawn to many different reference magnets. — J
I think you're exactly right. Usage of the big words leads to situations where Sider's scheme doesn't work because we don't seem to be able to agree on an appropriate ontological structure.
Sider (and I) would say that trying to argue for a single meaning for a word like “good” is a non-substantive debate. It really is a wrangle over terminology. But . . . the possible “magnets” are not themselves words, and the issue is not merely linguistic. It is as substantive as can be: ontology, what the world is like. Our problem is that we can’t settle on which of our big terms ought to be coupled with which magnet. — J
Again--exactly right. When every discussion ends up an argument about definitions, we never get anywhere with any substance.
That is, the ordinary, natural language question, phrased in terms of the ordinary, natural language expression E, would be non-substantive. But we could discard E and enter the metaphysics room, so to speak. We could replace the ordinary expression E with an improved expression E* that we stipulate is to stand for the joint-carving meaning in the vicinity. The question we ask in the metaphysics room, cast in terms of E* rather than E, is substantive. Indeed, it is superior to the original question, for it concerns reality’s fundamental structure, rather than its merely conventional or projected aspects. This is plan B. — Sider, 74.
How is this different from just agreeing on the definition of the word in question at the beginning of the discussion? There's already vastly to many "improved expressions E*" out there.
Now I want to depart from Sider on one point. (And I should emphasize that much of the above is my own interpretation of Sider.) I’m not convinced that “reality’s fundamental structure” is the best way to talk about what Sider wants to talk about. I don’t know how fundamental the various reference magnets may be, or whether it’s necessary to drag in “reality” (one of those very terms whose ambiguity causes so much trouble). This is a version of the same question raised about “natural” groupings. I certainly don’t know whether “naturalness” or “fundamentality” are properties we can treat the same way we treat things like “yellow” or “square”. I’d rather say that words map imperfectly onto concepts, and that the structure of concepts – their relations, groundings, logics – is something we can discern regardless of the words we use. Plan B is an attempt to help everyone concerned to find a way to stop disagreeing about words and get on with doing metaphysics. — J
I agree with this.
But we could enter the metaphysics room, and coin a new term, ‛cause*’, for the joint-carving relation in the vicinity of causation. ‛Cause*’ will stand for C – fundamental causation, we might call it – and our new debate about causation* will be substantive.
— Sider, 75-76.
In some ways, this approach is familiar, even truistic: Define your terms!...
Yes.
But there’s no need to enter your metaphysics room and come up with fancy terminology. Instead, I’ll keep working to convince you that my use of ‛exist’ has indeed trumped all the other reference magnets in the vicinity, just as ‛leopard’ did.” And so the terminological/historical bickering goes on . . . — J
Rather than trying to convince me, perhaps it makes more sense for you to say "You and I just see things too differently for this to be a fruitful discussion." Then you go find someone else to talk with. I end up doing that a lot. I just learned the meaning of the word "incommensurable" recently and I find myself using it often.
Another type of philosopher might respond, “I’m wary about this division between word and concept – between a term and its ‛reference magnet’. Are we really able to perceive structure (‛joint-carving’ or not) apart from the words we use to describe it? Does this depend on a special sort of intuition, and/or a multiplication of entities? Surely our challenge, if we’re going to do metaphysics at all, is to use the words we have in order to create the most plausible, parsimonious, and complete account we can. The words are the structure.” — J
I like this, even though I'm not sure I know what it means. I'll have to think about it more.
“using the words we have” does work well in some areas of philosophy, but we all appreciate the power of logical languages that can remove vagueness and allow us to clearly see what we’re talking about. — J
This is true. I believe we can express most of what we want to say without having to use highfalutin philosophical language. At the same time, I think some technical terms, for example "metaphysics," are important and refer to things that aren't easy to express in everyday language.
bizarre semantic values — Sider, 29.
If no definitive ontological structure exists, perhaps no bizarre semantic values do either. Or at least they're not likely to show up in a normal discussion.
I’m also interested in knowing whether the idea of reference magnetism sheds any light on what happens when “big” terms are employed in philosophy. — J
I think using the term might be trying too hard. Of course words take on multiple meanings, sometimes only differing in subtle ways. Of course this is confusing and distracts from substantive discussion. Of course it makes sense to recognize this and try to avoid it. Having discussions about the meaning or meanings of important terms can be useful and interesting, but there comes a time when you have to put your money down if you want to get anywhere. By which I mean--agree on the meaning of the concepts you're going to discuss.
Again--good OP.