Tuesday, June 10, 2014

Chapter 6 - Disagreement



Summary
The point of Ridge’s chapter 6 is simple: to provide a plausible account of disagreement.  It has to improve on existing accounts and mesh with the account built so far in EE.  The structure of the chapter is also simple.  The first section deals with Stevenson’s account, which is found wanting.  The second section deals with Allan Gibbard’s account, which is seen as an improvement on Stevenson’s, but is also found wanting.  Ridge then develops his own account, which he calls ‘disagreement in prescription’, and shows how it meshes with what has gone before.

Section 1: Disagreement in Attitude
Ridge begins with a summary of Stevenson’s account.  How to define ‘disagreement in attitude’?  Although many think it is sufficient for there to be two attitudes that cannot be satisfied, Ridge notes that Stevenson does add a further, necessary condition in some passages, namely that at least one party has to have a desire to change the other’s attitude.   Ridge argues that this second condition renders the overall position absurd, and focuses in the main on the account with this condition eschewed.
Having summarized Stevenson’s account, Ridge indicates four main worries.  (i) We can have cases of different preferences – I prefer that Wolverhampton Wanderers win, and you do not – that seem to be differences of attitude but do not seem to be disagreements, at least in a sense we are trying to capture.  (ii) What about non-linguistic animals?  Fido wants to go for a walk, whilst I want to have a quiet evening in.  This fits Stevenson’s account, yet it does not seem a clear case of disagreement at all.  Even if we think it is a case of disagreement, it doesn’t seem as clear-cut as the others.  The analysis offers no sense of how that can be.  (iii) Stevenson’s account seems to fit many mental states where there can be incompatible propositional contents.  However, we do not find the ideas of ‘disagreement in fantasy’, ‘disagreement in supposition’ and ‘disagreement in perception’ natural type of disagreement as opposed, again, to being differences only.  (iv) This account has no way of accommodating agent-relative judgements, and these judgements seem to be pre-theoretically intuitively plausible.  The worry here revolves around indexicality and what one would wish others to do.  Where we have a difference between two speakers as to what a third should do,  that difference can be expressed as two different preferences as to what those individual speakers would do if they were in the shoes of the third: ‘if I were you, then I would / would not phi’.  Both preferences can seemingly be satisfied, and thus we have no disagreement where we think there should be one.

Section 2: Disagreement in Plan
For Gibbard, normative judgements are planning states.  He “analyzes what my judgement about what other people should do in a given set of circumstances in terms of my contingency plan for being in those circumstances.”
         This account gets round the fourth problem that dogs Stevenson’s account.  Gibbard illustrates his view with the example of what Brutus thinks Caesar should do.  Brutus plots to ensure that Caesar comes to the Senate, yet he can also say to himself that if he were to find himself in Caesar’s shoes, then he should not come to the Senate.  We have two all-things considered judgements that clash.  Ridge is satisfied that there is an improvement here, from Stevenson to Gibbard.
         However, there are, again, four issues that Ridge raises for this account, or rather stages of worry that he develops.  (i) I plan to do something in a circumstance, whilst you plan to do something else in the same circumstance.  What makes it the case that such differences are disagreements?  Gibbard’s response is a type of transcendental argument: we must treat at least some disagreements in plan as genuine disagreements.  Imagine what it would be like to be a single person over time, changing her plans.  It makes sense for her to treat differences between her present self and previous selves as disagreements.  If she does not, then these previous plans could still be considered as mere possibilities for her now, rather than as plans that are, in some way, defective.  Similarly, when I consult others about what to do, especially if I regard them as good planners and worth talking with, and there is a difference, it can make sense to treat this as a type of disagreement.  Again, if I don’t then these could be considered to be live possibilities for me, rather than plans that I think are flawed in some way.  This is not something we are forced to do, but if we think of someone else as a good planner, then in part it shows that we take her plan seriously, and as something worth disagreeing with.  This does suggest, as Ridge notes, that there can be occasions of ‘impasse’: I regard myself and my plan as ideal and think that you and yours are not, and vice versa.  In that case, we will have nothing left to work with and no point, perhaps, to treating our differences as ones of disagreement.  But, Gibbard hopes that such occasions will occur infrequently.   Can this transcendental argument work?....
          (ii) Ridge thinks not.  He is not convinced that we have to treat these types of difference as disagreements.  If Gibbard uses ‘disagreement’ as ‘disagreement in plan’ throughout his argument, he has established nothing.  We have a type of circularity – the differences in plan that two people have amount to a disagreement but only because we have cast ‘disagreement’ as ‘disagreement in plan’.  The real issue is whether disagreement in plan is a real type of disagreement.  Is it?  We need some independent idea of what sorts of topic can correctly be topics for agreement and disagreement.  Gibbard gives us some glimmers here, but not enough with which to work. 
(iii)  Gibbard’s transcendental move depends on a practical need.  Agents have to conceive of themselves as disagreeing with previous selves or other people in order to take themselves as being effective planners.  But what if this need could be met by us merely pretending that we disagree with previous selves as opposed to merely differing?  Gibbard could respond by saying that at least many people do feel this need to conceive of themselves in this way.  And this leads to a more fundamental issue….
(iv) Namely that the range of cases in which there is a point to treating ourselves as disagreeing does not coincide with the range of cases in which people disagree.  Consider cases of impasse: it may be coherent for us to treat ourselves as disagreeing (rather than differing) but there is no point in doing so simply because there is no way that one or the other party will change his or her mind.  This point is sharpened if we think that there are quite a few cases of impasse, I think.   
            The big worry that emerges for Ridge is Gibbard’s transcendental argument.  To what extent are we licensed to treat difference in plan as proper disagreement?

Section 3: Disagreement in Prescription
Gibbard is right to focus on normative discussion, thinks Ridge.  But, in order to move from difference to disagreement, his account depends on there being a point – a real, actual point – to the discussion, and it is this that distinguishes (mere) difference from (proper) disagreement.   Better to think about an idealized circumstance, thinks Ridge: what people would prescribe if they were in best circumstances.  We leave behind the thought that there has to be some actual, existing point to their difference. 
Ridge asks us to think about idealized circumstances in which each party advises the other about what they should do.  Each party must be fully honest and fully candid with the other.  Each must mention all considerations that are relevant to the decision, and each must mean what he or she says.
Ridge lists some advantages of his account.  (i) Sometimes there is mere difference and this does not result in disagreement, and this may simply be because I have no desire to change your mind, for I may not be advising you to do anything, even if we have different tastes or preferences.  This account can capture this phenomenon.  (ii) The account makes it easy to see why we are cautious about characterizing non-linguistic agents as entering into relations of agreement and disagreement.  We may very well hesitate about speculating as to what a non-linguistic agent would advise in ideal circumstances.  (iii) There is a nice mirror to point (i).  This account can explain how we can be taken to be disagreeing even without any actual motive to change someone else’s mind.  All that matters is that we would offer incompatible actions if we were to offer some advice.  (iv) A theme from elsewhere in the book comes in.  This account explains what is special about belief and desire.  The focus here is on advice.  Consider first desire – it would seem to be insincere to say ‘I would advise you to phi, even though I would never do that if I were in your circumstances for I have no desire to’. And in order to be offering advice in ideal circumstances, one has to be sincere.  What of belief?  That is more complicated, but essentially, one way of advising someone to believe that p is simply to assert that p.  Ridge claims that there is nothing analogous to this for fantasizing and the rest.  (v) Lastly, Ridge outlines how this account accommodates normative disagreement about agent-relative reasons.
              Ridge ends by indicating how this fits with the ecumenical expressivism he has already developed.

Commentary and Questions
(1) I think that, by and large, Ridge does a really good job in summarizing Stevenson and Gibbard, and raises some good points.   The move to think about idealization is a really nice one.  But….
(2)  …there is one point from what Ridge says that I think it is worth pausing on, if only to get more clarification.  I am going to focus on his claim that asserting that p is a way of advising someone to believe that p and, in particular, the claim that comes from this, namely that there is a great difference between belief and, say, fantasizing on this point.  (Note that establishing the difference between belief and fantasy, for example, is the main thrust of what Ridge is doing on pp. 188ff.) 
         So, first of all, is asserting a way of advising?  Well it can be.  (I am not going to deny that here.)  Ridge makes a nice point on p. 189 that relies on discussants and believers both aiming at truth, ceteris paribus.  If I say that p, then I am presenting p as being true.  If you think of me as honest and reliable, you have a reason to believe that p.  What Ridge does is play up the interesting aspects of our language that take us from a dull, narrowly characterized speech-act of asserting to show us that assertion can also be a type of advising.
          Fine.  But, the more one plays that up, the more one might see that expression of fantasy shares more with expression of belief than Ridge allows for.  He says:  “Nothing analogous to this can be said about fantasizing, perceiving, or supposing for the sake of argument.  It is not obvious that we can (in our language, anyway) directly express these states of mind at all, as opposed to expressing them by expressing our beliefs about them.  This is especially unclear when one recalls that the relevant sense of ‘express’ is one which goes via robust linguistic conventions. Insofar as we could directly express them in the relevant sense, though, it is not plausible to suppose that we would thereby be advising our interlocutor to adopt our fantasy, perception, or supposition. Nor is it clear that the idea of honesty, hypocrisy, and the like intuitively come into the frame in these other cases either.” (p. 189, his italics).
        Some comments on this key passage.  First, I don’t share Ridge’s confidence that we cannot express fantasies directly with our language.  Just think of stories one tells to all manner of people – bedtime stories to children, for example.  I think I am directly expressing a fantasy to them and not just beliefs about the fantasy (or, perhaps better to make Ridge’s point, not just beliefs about the fantasy world).  I think that when I tell my children a story I am directly expressing the fantasy, not giving them beliefs about what happens or is happening in this fantasy world.  (Of course, this may be because – thinking of Ridge’s next claim – that I have misunderstood what is meant by ‘express’ here.  But, then I need a little clarification.)  Now, a crucial point for me.  Remember, I am worried about how special belief is in this sense, and how different it is, as Ridge supposes, from fantasy and the like.  Ridge says that it is implausible to suppose that we are trying to get our interlocutor to share our fantasy.  This strikes me as wrong-headed.  When I tell my children a bedtime story this is precisely one of the things I am aiming at doing, alongside other things such as trying to amuse them and calm them down.   Insofar as my asserting of p is a type of advising others to believe p, so my expressing a fantasy p (or a fantasy that p, or a fantasy of p), is a type of getting others to share in my fantasy and to fantasize as I do.  I just don’t see the gulf here.
        (Now, here’s something that is more of a ‘blogged punt’….)  Where I do think Ridge may have something is the point about honesty, at least as narrowly construed.  Issues of honesty don’t, obviously, come into fantasies!  But recall why we are talking about honesty.  We are talking of someone, suitably idealized, advising someone to phi.  Part of that idealization involves honesty.  And now we are trying to explain why belief, amongst many contentful states, has a special status and why agreement and disagreement in belief and attitude have great similarities, and are unlike samenesses and differences in fantasy.  But, the point of introducing honesty is, really, to show that we are people who are proper discussants, and who are not just sounding off in the same general vicinity.  Our difference gets turned into a disagreement, and our sameness gets turned into an agreement, partly because there is something about our character that connects with someone else.  Now, we have just seen that we can share in the fantasy together.  Furthermore, this is not just me giving a fantasy with you latching on.  Rather, I am aiming to get you to share in the fantasy, perhaps even continue it.  This is not honesty on my part, but some similar character trait, relevant to fantasy, something such as ‘engaged, sympathetic creativity’. 
          What of difference in fantasy?  (Here I think Ridge is on stronger ground, so this paragraph just shows where I have got….)  Well, there has to be some basis of sameness to begin with.  We have to be talking of the same, general fantasy world, with quite a few of the same characters and the like.  (Just as, when it comes to belief, we have to be having beliefs about the same set of things in general, otherwise the difference will simply be a difference: you expressing a belief about cheese, whilst I express a belief about tables.)  You and I both continue the story, but in different ways.  This may turn into a disagreement, and not just a difference, because the different depictions we offer continue the characterisations in ways that clash.  But, as Ridge may point out, if you dig deep, is the best way to cache out that clash really just to put it in terms of belief: given the fantasy world we have both been engaged in constructing, I believe that Noddy will eventually turn to a life of crime as he grows up, whereas you believe that he will stick to the straight and narrow.  And, so, we may still see that the only way of moving from differences in fantasy to anything like disagreements in fantasy is to rely on beliefs.  And that may show the power of Ridge’s stance.              

(3) Also, I am going to raise a very general point, if only to encourage clarification and extension of the account.  All of this concerns action: advising people to phi.  What about judgements where there is no action?  What of cases where I am judging that something is the case where we are dealing with evaluative judgements?  In a comment on a previous chapter I mentioned aesthetic judgements, so let’s stick with one of those.  I say that a painting is jejune and sloppy, whereas you say that it is youthful, daring and unencumbered.  Is this sort of difference one of mere taste?  (I’m wary of saying that about all aesthetic cases.)  It also doesn’t seem to be a difference in prescriptions, at least not straightforwardly.  After all, what am I prescribing people to do?  Buy the painting?  In a few cases, yes, but not all.  So, is the translation to what Ridge says the simple one of ‘asserting that the painting is jejune, etc. is a way of advising others to believe that it is jejune? (Or ‘…advising others to feel that it is jejune?’.)  What is going on in cases where we may decline to say that there is an obviously straightforward prescription?   

Sorry this is longer than the norm.  (I really got into this, Mike.)
Also, apologies in advance.  After posting I may not be able to get back here to check on comments until the weekend.

11 comments:

  1. [Apparently this is so long I'll have to post it in two parts.]

    Thanks, everyone, for the great discussion of chapters 4–5! And many thanks to Simon for the useful summary of chapter 6, which raises very interesting issues!

    I don’t think I have anything substantial to say on Simon’s comments, at this point. I’ll have to think some more. But I shall briefly mention two worries concerning Ridge’s ‘disagreement in prescription’ (DiP) account (the more worrying one of which I get from Jamie Dreier). I then quickly outline the kind of account of disagreement that I’ve toyed with, myself. It’s very much in the spirit of what Ridge says in chapter 7, and I’d like to think that it avoids the kinds of worries that Dreier has with regard to what Ridge says (in chapter 7).

    My first worry is very simple and perhaps not terribly serious. It is that the DiP account seems implausibly response-dependent, as one might put it. Suppose, for a moment, that Ridge is correct that A and B disagree about D’s φ-ing in C just in case they would give incompatible advice given certain idealizations. It seems quite plausible to me that A and B would so advise because they disagree about D’s φ-ing in C. But if that’s right, then we shouldn’t try to explain their disagreeing about D’s φ-ing in C in terms of what kind of advice they would give.

    The second worry I get from Dreier (his comments on Ridge at the Pacific APA earlier this year). Suppose A thinks that D must φ in C, whereas B thinks that D may refrain from φ-ing in C. A and B disagree. However, even though A would, given relevant idealizations, advise D to φ, B would not give her any conflicting advice. Ridge is aware of this problem (pp. 191–192). His suggestion is that B would advise D to consider not φ-ing as a live option in her deliberation, whereas A’s advice would be that D not do this. But this doesn’t seem to work. It seems possible for B to think that D may refrain from φ-ing, and that D also doesn’t have to consider not φ-ing as a live option. In this case, B would not advise B to consider not φ-ing as a live option, and so it would seem as if the disagreement between A and B could not be explained on the DiP account.

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    1. This second worry does merit more discussion than I gave it in the book. Right now I'm torn between two options, though I could endorse both of them. The hard case, of course, is one in which B thinks D may refrain from φ-ing in C but does not think that D *must* refrain from φ-ing in C - if he also thought the latter then it would be easy to explain why there is DiP. Let me lay out the two strategies and see what folks think.

      The first strategy is to hold that if B thinks D may (but doesn't have to) refrain from φ-ing in C then if the issue of whether to φ in C arises and B is asked for advice, then if he is to be fully candid, honest and non-hypocritical advice, he must say something like, "φ or don't φ in C - do as you will." Whereas A's advice would be of the form, "φ in C!" What I need now is some explanation of why it would be impossible for someone to follow both of these pieces of advice without thereby being caught in an inconsistency. In the book I here only include inconsistency in belief, but I might need to broaden this to include inconsistency in plan if I deploy this strategy. The thought would be that these two plans are incompatible: Plan 1: I shall φ in C. Plan 2: I shall φ in C or not-φ in C, as I please. It would take a little work to explain in what sense these are inconsistent, I admit, as there is of course a way to follow both of them (making sure you are not inclined to φ in C). But there seems to be an intuitive sense in which these plans are not such that one can coherently endorse both at the same time, and that would, in conjunction with a fairly natural extension of the definition of 'disagree', allow me to handle these cases.

      The second strategy is just to handle this as a case of assertion, since I think normative claims make assertions too, I just explain the nature of the beliefs expressed as being different in kind and not just in content from ordinary descriptive beliefs. Then if my account of assertion as a mode of recommending works, then I can explain why there is disagreement here - A is pushing D to endorse one normative belief, while B is pushing for another, such that these beliefs cannot be combined at one and the same time without contradictory beliefs (in the ordinary represenational beliefs which constitute the normative judgments in play here). That strategy, incidentally, is in many ways similar in spirit to your very interesting positive proposal in terms of truth, below, I think. I prefer this version for reasons I mention in the book en passant, but don't develop at great length, but there may not be a huge amount between them. Thanks for pressing me on this! It is definitely something I'm still mulling over in light of Jamie's comments and now yours as well.

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  2. We’re only in chapter 6, but I believe it’s going to be difficult to avoid discussing some sections of chapter 7 here. So, in chapter 7 (pp. 213–215), Ridge suggests that he could also give a different account of disagreement. Ridge has some reservations about relying on this different account alone, but he thinks that it could nicely supplement the DiP account. The new account is the one given by John MacFarlane. Here’s how Ridge (p. 215) characterizes the view: “Two parties disagree just in case they hold attitudes such that, for any context of assessment C, the accuracy of one party’s attitude as assessed from C precludes the accuracy of the other party’s attitude as assessed from C.” This sounds pretty great, I think, at least once we understand C in terms of something like Ridge’s ‘normative perspectives’ (as Ridge suggests we do).

    Dreier agrees that this may sound pretty good, but he argues that this alone won’t do as an expressivist account of disagreement. On his view, MacFarlane’s story – just as, say, Gibbard’s – gives us a semantic model which delivers the right results, alright. The problem is that it doesn’t give us an account of the states of mind of A and B such that would explain why they disagree. (Ridge may agree on this, but in contrast with Dreier, Ridge of course thinks that the DiP account will help him here.)

    I’ve been toying with the following expressivist-friendly account of disagreement, myself:

    (DISAGREEMENT) X and Y disagree in virtue of their being in states M and M*, respectively, just in case it is not possible for someone to coherently think that both X and Y are thinking truly in virtue of their being in M and M*.

    I mention this proposal of mine just because it seems to me to be very much in the spirit of Ridge’s suggestion in chapter 7. So, it’s meant as a friendly suggestion for an ecumenical expressivist. The idea is to explain the disagreement property of X’s and Y’s judgments in terms of the intrapersonal incoherence property of the judgments ascribing truth to both X’s and Y’s views. (My thought was that this would help to solve a problem with Dreier’s earlier proposal which appeals to the intrapersonal incoherence property of M and M* themselves – the problem with this earlier proposal being that it would give the result that when X thinks I AM SAD, and Y thinks I AM NOT SAD, X and Y disagree.) So, suppose X thinks that φ-ing would be good, while Y thinks it would not be good. Accepting that X’s judgment is true would involve thinking that φ-ing would be good – that is, being in a relational state realized by a normative perspective plus a belief that any admissible standard would rank φ highly. Accepting that Y’s judgment is true would involve thinking that φ-ing would not be good – that is, being in a relational state realized by a normative perspective (the same one) plus a belief that any admissible standard would not rank φ highly. So, thinking that both X and Y are thinking truly would necessarily involve having inconsistent descriptive beliefs (about how the admissible standards rank stuff). So, it’s not possible to coherently think that X and Y are both judging truly. So, they disagree.

    We do appeal here to the idea of ascribing truth to a normative judgment, as well as to an account of the state of mind that one is in when one negates a normative judgment. But if there are some problems with this (Ridge gestures toward possible concerns on pp. 214–215), I’ve yet to fully grasp what they are. Of course it would seem problematic, for example, to now give an account of what it is to think that φ-ing is good/not good in terms of disagreement, but my suggestion would be that we don’t do this. So, perhaps rejecting DiP is quite alright, and all we need is something along the lines of (DISAGREEMENT).

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  3. Finally, I thought I should also mention this PEA Soup discussion here: http://peasoup.typepad.com/peasoup/2014/04/ridge-on-expressivism-and-disagreement.html. That's Jussi Suikkanen raising a criticism of Mike's disagreement in prescription account plus some great discussion (including very helpful stuff from Mike himself). I shall not summarize Jussi's argument here, but that, too, might be something we'd want to discuss.

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  4. Thanks for the summary, Simon. Really helpful stuff.

    Regarding the 'platitudinous' intuition about disagreement that I was supposed to have on p.171: The person in China and I have contrary beliefs about the shape of the earth, but the distance between us makes my intuition about our disagreeing waver just ever so slightly. And I believe that this effect can be amplified. Imagine two people, one who thinks it's obligatory to exercise, another who thinks it's forbidden. Also imagine that each lives on a different planet, that neither is even aware of the other's existence, and that the two planets are so far away from one another that it is physically impossible for the persons to ever interact before they die of old age. Do they disagree about exercising? On the proposed account (and on Teemu's revised account above) it is guaranteed that they do, without qualification. But intuitions--my intuitions, at least--waver, here. Moreover, the very peripheral sense in which the persons seem to disagree may be generated by my (illicitly, in some way that is not transparent to conscious awareness) imagining them meeting and discussing exercise.

    Ridge might want to say that I am conflating "having a disagreement" with "disagreeing" (171, fn2). That's one way of describing the reaction, but another way of describing it is that our pre-theoretical concept of disagreement does not obey this hard-and-fast distinction. Indeed, Ridge's own account brings 'having a disagreement' back into the picture: in order to make sense of disagreement, we are asked imagine persons actually giving each other advice. But the concern is that these idealized situations might be too far removed from the way the actual world is.

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    1. Thanks Nick. I think this may just boil down to different pre-theoretical intuitions, really. I'd be curious to see how other people's intuitions come down on this one.

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  5. I have some worries about Ridge's objections to Gibbard's 2003 account of disagreement, which in turn touch on some features of Ridge's own account.

    The immediate worry that jumps out at me is that the examples given in 2.1 of difference without disagreement are ones that Gibbard can easily, or at least plausibly, accommodate. Galileo may like wine well enough now, but he may also reflect that if he were to sneeze at wine he'd plan on drinking much less of it. If so then he and Kepler agree on what to do in Kepler's shoes. Similarly, if I at dinner say “I'll have ice cream” and you next to me say “I won't have ice cream,” then we don't necessarily disagree. I plan in my circumstances to have ice cream and you in yours not to. What is needed for disagreement is my planning when in C to X and your planning when in C to Y, where X and Y are incompatible in C.
    Finally, I'm not sure that self-ascribing and self-prescribing need to be analogous in Gibbard's view. To self-ascribe X-ing in C is to have a belief with the content: I would X in C. If you self-ascribe Y-ing in C, then even if X-ing and Y-ing are incompatible we don't necessarily disagree, since it could very well be true that I would X in C and that you would Y in C. The contents of our beliefs are not incompatible. Self-prescribing has a different form. To self-proscribe X-ing in C is to have a plan with the following content: in C, to X. So if X-ing and Y-ing are incompatible in C and you plan to Y in C, then the contents of our plans are incompatible, and we disagree. (This may not be the way Gibbard would put the point since he takes disagreement to be in the first instance a relation among attitudes, and it also depends upon a syntactic difference I am not sure he'd accept. Still, I think it captures the intuitions about agreement and disagreement Gibbard seems to have.)

    This does throw into question just what Gibbard takes himself to be explaining in Chapter 14 of Thinking How, and I think Ridge is quite right to point out his lack of clarity. However, there's another plausible reading him here. Namely, the transcendental argument isn't aimed at /adding/ to his account of disagreement, which may be exhausted by his notion of disagreement in plan. Instead it's to explain why disagreement in plan often leads to /real disputes/, a matter of giving accord and dissent to each other with a view towards conviction or justification.

    Not all cases of epistemic disagreement lead to disputes. William Carpenter and I disagreement on whether the Earth is flat, but we'll never meet so there's no question of a dispute. In other cases two people might so fundamentally disagree on the epistemic norms that carrying on a discussion over whether there were dinosaurs is absolutely pointless. Indeed it's conceivable that I could find a dinosaur-denier whose views were so entrenched that even in circumstances of honesty, full candor, and non-hypocrisy I would be unsure over what to advise them to believe; I might recognize that this belief is so central to their self-conception that I could not in good faith advise them to drop it. Still, we disagree. (I take this to be an objection to Ridge's account.)

    I take disagreement in plan to secure only /that/ kind of minimal disagreement, and Gibbard is trying to show why it matters – why we should take this notion of disagreement as an interpretation of our disputes. (This might be important for exactly the sort of intuition which Nick raises above.) That's why he points to extended agency and planning together as cases in which disagreement in plan matters. But there are other cases in which carrying out a dispute would be coherent, since we do disagree in plan, but we are so entrenched that dispute is pointless. (See the paragraph splitting pp. 282-3 in Thinking How.)

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    1. That's very helpful! I've been a bit puzzled by this for a while, for it has seemed to me that perhaps Gibbard doesn't need to give the relevant kind of transcendental argument in order to distinguish between disagreement and mere difference. Now, perhaps I can plan to A in C (to drink only vodka when in Finland, say), and you can plan not to A when in C, without there being any disagreement between us, but if I plan to A in C, and you plan to not-A in C, where C provides a complete account of the relevant circumstances (for example, I plan to A in my circumstances, you plan to not A if in my shoes - where this includes being just like me, having my preferences, etc.), it seems to me like an acceptable consequence of a view if it says that this is a disagreement and no mere difference between us. So why give the transcendental argument, which, as Ridge convincingly argues, doesn't seem to work for the purpose of drawing this distinction? However, yeah, maybe Gibbard wasn't trying anything like that. That's a great thought.

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    2. Thanks Paul - A lot of interesting content in your post! I won't try to reply to all of it just now, anyway, but did want to pick up on the issue of what Gibbard is doing in that chapter. I thought the set-up was indicated by the last few paragraphs of the chapter where Gibbard has built up to the worry that, as he puts it, "This is no disagreement at all, it might be objected. It is just a difference of personal characteristics, like having different hair colors..." This is the conclusion of the introductory section of the chapter. I find it very natural to read the rest of the chapter, including the transcendental argument, as intended to allay this worry. If all that argument did was explain why disagreement in plan can sometimes lead to disputes then I don't think that would be sufficient, since misunderstandings which are not really disagreements at all can do that, for one thing. That, at least, is why I find it natural to read him in this way.

      I realize that in latter work, and in his reply to Mark Schroeder (in Appendix 2) in the book on meaning, that Allan seems happier to take disagreement as primitive in some sense. I'm not sure how well that fits with my reading of the transcendental argument, but then that might also be a kind of change in view. And anyway, I do need something to say about the latter Gibbard even if it is different from the view laid out in *Thinking How* and I do want to think more about that. But, in any event, I hope that clarifies why I read chapter 14 of *Thinking How* as I did.

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    3. Glad you thought it was interesting!
      To Mike - Yes, I agree that that passage makes it look as if Gibbard is about to add to, qualify, or otherwise clarify his analysis of disagreement in plan. But there are other places where he does seem to allow disagreement in non-paradigm cases, like in the passage I cited above.

      In writing that post I had in mind this passage from his 2011 "How Much Realism?", pp. 49-50:
      "The point of regarding us as capable of disagreeing with each other, I am saying, is to let us "put our heads together" in thinking about matters, whether they are matters of what to do or matters of how things most prosaically stand. Where we know that we are all coherent and our disagreement is fundamental, this point doesn't apply. Still, it is part of the whole package of regarding ourselves as capable of disagreeing on matters that we disagree in such cases too. We disagree, after all, with Wilberforce* on whether there were dinosaurs."

      Here it sounds as if Gibbard is making the following sort of argument: We're committed to practices of disagreeing (i.e., disputing) which also commit us to treating cases of impasse as matters of disagreement; therefore (transcendental step) we do disagree in cases of impasse.

      * Wilberforce is Gibbard's ideally coherent dinosaur-denier. Apparently modelled after Samuel Wilberforce, who was apparently more of an evolution-denier.

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    4. Thanks Paul - I agree there are conflicting passages and strands in Gibbard and that my reading is not obviously correct. I suppose in the end what I'm more keen to argue is that Gibbard needs some argument for the conclusion that what he calls 'disagreement in plan' is aptly so-called. That does bring me back to the point about self-ascription and self-prescription, which you also discuss in your initial post. I agree that on a superficial reading of the contents of plans, your plan to X and my plan to not X are inconsistent - if we take the contents of plans simply to be given by infinitival clauses and taking 'x-ing' and 'not-xing' to be the relevant contents. But I think that this gives too much weight to the surface grammar. Even in the simple case of an outright intention to X, I think the content of my intention to X is really 'my X-ing' whereas the content of your intention 'your not X-ing' (as I'd have to put it in my voice). Whatever one thinks of the simple outright intention to X, though, things are much clearer for Gibbardian *contingency plans* which surely are of the form: If *I* am in circumstances A, then X. These must have an indexical element, which makes the prima facie lack of incompatibility vivid. Of course, you could put my contingency plan in the form 'If in C, X' but this is surely elliptical for 'If *I* am in C, X'. Think of the example on p. 51 of *Thinking How* where a binge drinker plans as follows: If it is Saturday and *I* crave a drink, don't have one. So characterized, this intention's content is not inconsistent with another binge drinker's plan to go ahead and have a drink if *he* craves one on Saturday, etc.

      I don't take any of this to be decisive, but it does put *some* pressure on Gibbard to give *some* account of why we have disagreement and not mere difference. To his credit, Gibbard recognizes that this is very much a legitimate challenge - or anyway, at some points he seems to have been very much alive to its legitimacy - I agree the text is mixed and the reply to Schroeder makes things more complex. But in any event it is a legitimate challenge, and if the transcendental argument doesn't meet it then I don't know how Gibbard does or could meet it.

      Finally, the passage in the Oxford Studies volume is interesting, and not something on which I'd focused in writing mine. Here, though, he seems to be committed, on the face of it, to treating impersonal beliefs about dinosaurs as on all fours with plans with indexical contents - if my argument above is sound, anyway. He then argues that we don't think that our inability to conver Wilberforce means we don't disagree. True, but beside the point since we *obviously* have logically incompatible contents in that case, and don't need a fancy transcendental argument to vindicate the assumption of disagreement. So I don't really see how those passages can meet the challenge once it is admitted to have any prima facie force, myself. Perhaps you think Gibbard just doesn't think the challenge has any force to begin with. If so, I disagree with him - but I actually think at least some Gibbard-stages were very much alive to the legitimacy of this sort of challenge!

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