Comments

  • Wittgenstein's Toolbox
    For example, how can a person know whether it is correct to say “I am in pain” or “I am not in pain” if they don't know whether they are in pain or not?RussellA
    That's true. I shows how language games are not in separate compartments, but interact. Indeed, I'm sometimes inclinced to think that Wittgenstein did not think of language games as actual distinct structures in language, but a thought experiment designed to high-light and focus on specific uses to enable a clearer view.
    For example, how can a person know whether it is correct to say “I am in pain". First they must know whether they are in pain or not and then they can correctly say whether “I am in pain” or “I am not in pain”.[/quote]
    This is not quite right. It is an important part of language that when we are in pain, we do not - and do not need to - apply the usual processes of deciding on the truth of "I am in pain". As Wittgenstein says, what seems to me to be so, is so. It is only when pain is seen in the public world - that is, in the context of p;ublic language - that we can separate truth from appearance. That's why I think that "I am in pain" is not exactly synonymous with "Ouch!".

    He is demonstrating that the recurrence of the inner sensation is not the recurrence of an object which can be named, as we name an external object. In this way he takes "object" out of the picture, but he leaves "the inner" as still central, but consisting of something other than objects.Metaphysician Undercover
    I'm inclined to think that Wittgenstein was not concerned to refute the specific idea that pain is an object. He was concerned with the idea that a (logically) private rule was an incoherent idea. What kind of objects sensations are. His arguments apply whether pain is seen as an event or process or whatever.

    I am not arguing that this is the case, only that "sufficient conditions" lack the necessity required to draw certain conclusions.Metaphysician Undercover
    I was impressed by the thought that if language is a system of communication, it is hard to see how it could not presuppose the existence of some sort of social relationship. So, at most, I was suggesting that a social context was a necessary condition for language. It obviously isn't a sufficient condition, since there are societies of non-language using creatures. On the other, people do think of the various communication systems used by those societies as a language, so it is not entirely clear what is going on.

    As inner feelings created both language and social life, and there can be feedback between them, inner feelings can be both necessary and sufficient to both language and social life.RussellA
    I don't see how "inner feelings" could create anything unless they interact with outer facts. It seems to me obvious that neither human motivations not society could create language on their own. It's the interaction that makes things happen.

    But what I am against is the idea that some interpret Wittgenstein's “meaning is use” as being that 100% of our thinking derives from language and society.RussellA
    Yes, people too often think of language and society as fixed, complete structures. Nothing could be further from the truth. They are elastic, capable of being adapted to new situations and new applications.
  • Wittgenstein's Toolbox
    We both place the inner feelings as prior, as "what make these language games possible",Metaphysician Undercover
    As our Form of Life would literally not exist without our inner feelings, in this sense, it seems that the ultimate foundation can only be “inner feelings”.RussellA
    I'm not clear what the difference is between a foundation and an ultimate foundation. But I don't see how inner feelings can be the only essential condition for language. They are necessary, perhaps, but not sufficient. If we were not social beings, there would be no language. Our form of life would be unrecognizable without inner feelings, social living, and language.
    Are you saying that inner feelings exist independently of language? In an sense, that may well be true, but then social life can also exist independently of language.
    But language is not something that is grafted on to our inner feelings or our social lives - an optional extra, available to human beings, but not other similar creatures. On the contrary, language transforms both our social lives and our inner feelings - so much so that I don't think we can really understand what either might be without language. To be sure, we can recognize parts of our form of life in animals and children who have not yet learned language, but how far those similarities go is a moot point.
  • Direct realism about perception
    I've no clear idea of what you are getting at here.Banno
    That's fair. I'll come back to this when I've got some clearer ideas.
  • Wittgenstein's Toolbox
    Without inner feelings there would be no language game, but you say that the meaning of “I feel pain” is determined by the language game, not inner feelings.RussellA
    The difficulty is that our inner feelings are not simply given, but are conditioned by our environment, including the language games we learn to participate in.
    I think you are right, that language is not self-sufficient; it requires a context in which it can develop. But, for Wittgenstein, the ultimate foundation is not "inner feelings", which are a language game in themselves, but "form of life" or "way of life".
  • Wittgenstein's Toolbox
    I like the presentation very much. It is a useful summary and demystification of Wittgenstein's approach to philosophy. Some possibly helpful comments.

    Tool 1 is the simplest and, I think, the most important: “Look and see.”Sam26
    I'm not at all sure that this tool is the simplest, but I agree that it is probably the most important. It seems simple, because it suggests that all we have to do is to sit back and the truth will reveal itself. But Wittgenstein also talks about the mental cramp that results when you go over the same points over and over again, thinking that you are testing an argument for flaws. But you may just be practicing a kind of self-hypnosis that prevents you from seeing properly. You need to look around you, at the context of your thought; you need to look at it from a variety of perspectives; above all, perhaps you need to avoid simplified (purified, ideal) concepts that seem to give clarity and certainty, but only do so because they are remote from the rough and tumble of actual life.

    “I’m in pain” in the first person present usually functions as an avowal or expression, not as a report based on evidence, whereas “he’s in pain” is where checking and criteria show up more clearly.Sam26
    Yes, that's what he says. But this is a case where grammar (standard sense) presents a format that makes it hard to see the grammatical (W's sense) of the two forms. It makes it very hard to take on board the difference between first and third person uses. The two pronouns often herald different use patterns, but the point is seldom noticed.
    As to the accusation of behaviourism, he protests somewhere that there could not be a greater difference between pain-behaviour without pain and pain-behaviour with pain. However, sadly, mimicry, deception, exaggeration and repression are also part of the language-game - it is necessary to understand them in order to take part in the game.

    And yes if there were no inner life at all, language itself would be impossible.Sam26
    "Inner feelings" are part of the games here. We learn how to play them. Suppression of behaviours is a necessary part of social life - even non-language using animals practice it.
  • Direct realism about perception
    It seems to me that you're moving the goalposts and contradicting yourself, and so this rejection of P3 is an ad hoc rationalization to avoid the conclusion, which seems rather dishonest.Michael
    Since I think the argument is valid, in its way, I would say that I'm looking for the limitations and weaknesses of your argument. If I were inclined to get personal, I might think that you are now avoiding replying to me and draw my own conclusions from that. I'll leave you alone now. You're quite safe.
  • Direct realism about perception
    I don't deny any of this.Esse Quam Videri
    I guess I misunderstood you. Sorry.
  • Direct realism about perception

    Oh dear!

    But the fact remains that your argument depends on P4 - the apple does not exist during the second 10 seconds. So if we change or even just delete that premiss, your conclusion does not follow. Without that premiss, you cannot assert C1 or C2 or C3.

    P3. If the apple is a constituent of the experience during the first 10 seconds then it is a constituent of the experience during the second 10 seconds
    P4. The apple does not exist during the second 10 seconds
    C1. Therefore, the apple is not a constituent of the experience during the second 10 seconds
    C2. Therefore, the apple is not a constituent of the experience during the first 10 seconds
    C3. Therefore, I do not have direct perception of the apple during the first 10 seconds
    Michael

    That's quite apart from the problem with P3. I can see no reason why the apple cannot be a constituent of the experience during the first 10 seconds and not a constituent of the experience during the second 10 seconds.
  • Direct realism about perception
    I figured this was quite clearly implied when I said: "The experience during the first 10 seconds ... is still the experience of an apple; it just isn't the direct perception of an apple."Michael
    Thank you for the clarification.

    But see also P5 and C4 of my argument. In that scenario we see an apple be disintegrated almost in real time, just as we would in real life. The apple exists for almost the full 20 seconds we see it (take a fraction of a millisecond, given that the speed of light isn't infinity) but it still follows that we do not have direct perception of it.Michael
    Yes. It was always obvious that the 1 m/s was a stalking horse, because it was obvious that the actual time lapse doesn't make any difference. That's why I'm not questioning it.


    P3. If the apple is a constituent of the experience during the first 10 seconds then it is a constituent of the experience during the second 10 seconds
    P4. The apple exists during the second 10 seconds
    C2. Therefore, the apple is a constituent of the experience during the first 10 seconds
    C1. Therefore, the apple is a constituent of the experience during the second 10 seconds
    C3. Therefore, I have direct perception of the apple during the first 10 seconds
    Michael
    Your argument is modus tollens. This argument is modus ponens from similar assumptions, but assuming that the apple is not disintegrated. It seems to me just obvious that on that assumption, direct perception follows. In short, I don't see how you can generalize from the specific case in which the apple disappears.

    we perceive it directly, without intermediaries.Banno
    I don't think "directly" as "without intermediaries" works. It could point to some version of the Aristotelian account of perception, but that's not a promising road to go down. We posit a subject and an object separated by space. There must be a connection or relationship between the two. That's the peg on which "indirect" hangs. The idea that the object of perception must be a constituent of the experience might be regarded as a model of what perception without intermediaries looks like. But it seems to me to be a weak point.

    “Directly” is contrastive and context-bound,Banno
    I think the idea is that introspection provides the model for "direct" and so justifies "indirect" for the alternative. I think it's the reification of "experience", "perception" &c., that is the key issue.

    it does not name a metaphysical relation of mind to object, it does not imply the absence of causal mediation.Banno
    Yes, but while we may want to call causal mediation a direct connection, others may have a different model. That could be a stalemate position, unless there is an actual refutation available.

    My question is: if all empirical evidence ultimately comes through perception (including scientific observation and instrument readings), in what sense can science correct perception without presupposing that perception is already world-directed and normatively answerable to reality?Esse Quam Videri
    There's something wrong with that presupposition. Perception and evidence do not come in a single harmonious system. Different perceptions can conflict, bits of evidence can point to different conclusions. We have to sort through them and make decisions. Sometimes we choose one perception or piece of evidence over another. Sometimes we reject our theories and develop new ways to interpret perceptions. That's what "world-directed" and normatively answerable to reality mean.
  • Direct realism about perception
    C3 literally says "I do not have direct perception of the apple during the first 10 seconds".Michael
    OK. Now I ask you whether you think that we have indirect perception of the apple during the first 10 seconds.

    If P4 is false, and the apple continues to exist for the entire 30 seconds of the experiment, does the experiment not become a case of direct perception?
    — Ludwig V
    No, because as per C3 I do not have direct perception of the apple during the first 10 seconds, even though the apple exists during the first 10 seconds.
    Michael
    You misunderstand me. I'm proposing a variant of your thought experiment in which the apple continues to exist for the entire 30 seconds of the experiment. In that variant, it seems that you might be committed to saying that we have direct perception of the apple.

    Here 's a variant of your argument, making a different assumption about the fate of the apple.
    P4a. The apple exists during the second 10 seconds
    C1a. Therefore, the apple is a constituent of the experience during the second 10 seconds
    C2a. Therefore, the apple is a constituent of the experience during the first 10 seconds
    C3a. Therefore, I do have direct perception of the apple during the first 10 seconds
    I think, on that different assumption, C3a follows.

    2. We have direct visual perception of mental phenomenaMichael
    That's compatible with our having direct visual perception of other people's mental phenomena. I don't believe you mean that. I think you mean to say that we have direct visual perception
    of our own mental phenomena.

    I agree. But the way I'm seeing things, the former is how things actually are, and the latter is intuition without analysis in the way "vulgar" was used in 18th/19thC philosophy. That's why I say that use isn't problematic, it just isn't all that relevant to us here.AmadeusD
    Is that where you think I've gone wrong?
    The question is whether you want to say that the vulgar account of the matter is just a different account for different purposes in a different context or that it is wrong. I understand IR to be saying that DR is wrong.
    There is also the question how far a theoretical stance is appropriate in philosophy. I have severe doubts about that. But even if it is ok, the vulgar stance takes account of things that the theoretical stance neglects - that we are not simply observers in the world but agents in it and part of it. I'm not sure how, exactly, that plays into the argument, but I am sure it should be important to philosophy.

    the difference doesn't have anything to do with your experience - they function the same in each example. If you watched the game on a five-minute delay (common, even for "live" broadcasts) you would be seeing something older when you looked at the window at the Sun. This does not sit well with the idea that the Sun is the direct one, and not the other. But I reject both, so that's cool.AmadeusD
    H'm. One difference is that the recording can be replayed many times and places. The light arriving from the sun cannot be replayed at all. Putting it another way, being there makes a difference, in a sort of "what it is like to be a bat" way.

    "So what?" is definitely the simplest, easiest and least analytical conclusion. I also think it's true - so what? I don't care that my perception of the Sun is indirect. This can cut both ways.AmadeusD
    If the difference between IR and DR doesn't make any difference, why are we so bothered about it?

    Direct perception is the concept that first-personal experience is constituted by objects in the world. IR is that this experience is constituted by mental images derived from sense data.AmadeusD
    Well, that helps me a lot. I don't understand what it would mean to say that first-person experience is constituted by anything, never mind objects in the world and the reification of mental images seems to me to be a mistake. [/quote]

    But if you think about it , our visual experience of the phenomena is perfectly compatible with both stories.
    — Ludwig V
    Oh yes. If it wasn't as clear as I thought, this was one central tenet of that long reply. The stories we tell don't answer anything, which is why relying on semantics or word use to sort this particular issue out to me is quite unattractive. Possibly dysfunctional.
    AmadeusD
    That's right. For me, the scientific story is a partial analysis of how perception (DR) works. So what do you think we can appeal to?
  • Direct realism about perception
    The "it" is the image the said light provides you with. It isn't the object, one AU away from Earth, as it is. It is highly mediated, and actually isn't an object, but an experience (on my view, obviously).AmadeusD
    I suppose I have to call it an image. In one way, that's what we see if/when it gets into our eyes. In another way, of course, it is nothing of the sort - I see the sun. The language seems quite happy to accommodate both IR and DR without hesitation.

    Yes. I have been over this several times now: idealization. I am unsure how much more lifting I can do on this exact matter.AmadeusD
    The recording cannot be your wife's voice. It can be a recording of it. But that's unweildy, so we idealize to get through conversations more efficiently.AmadeusD
    That is p.21 of this thread - dated Jan 14/15. I think this is what you were referring to. I take the point. The difficulty is that listening to the recording is like listening to your wife, but there are important differences as well. It would be foolish to equate the two.
    But doesn't it follow that we should not equate the light streaming from the sun with a recording either?

    I think the intuition most people feel is that the distance is merely a niggle on the farside of their metaphysical grapevine, but is slightly closer(i.e a more perceptible niggle) for the Sun example vs a computer screen a foot away. That is, unless one is discussing these things lol.AmadeusD
    Yes. It seems odd that people actually deal with this problem without seeming to feel that it is at all difficult. The light arriving on earth shows us the sun as of eight minutes ago. So what? That still seems to simplest solution to me.

    So, I think you have actually in a previous thread hit on something that speaks to me quite loudly. You said something like: indirect and direct at not apt for a discussion of perception.AmadeusD
    I expect I did. But trying to shift the framework of a discussion that's already in progress is not a popular move. "Direct" and "indirect" need to be defined in each context that they are used. In this context they are never defined in a proper way that makes sense. But they could be. But that would give sense to both DR and IR. But IR wants to claim the whole territory. (I'm less sure about DR on that front.)

    I now take that to boil down to the "choice" issue above, meaning it does boil down to semantics. I see the attraction, but I still maintain metaphysics is trying to violate physics there and so its extremely uncomfortable and misleading to me. When I take the DR position to heart, I cannot make sense of what we empirically know about perception.AmadeusD
    Yes. It seems to me that a good summary is that everybody seems to be agreed what the story is. What they disagree about is how to tell it. I keep wanting to ask why it matters so much whether you tell the story this way or that way. People seem very sure that it does matter, but I don't really understand why.

    Yes, we can misinterpret things we see, but whether this is the apparatus "malfunctioning" in a DRist way, or whether that's evidence of the mediation required to support an IR position seems jury's out to me. So, I can get on with that. Not the latter, though, as that would directly contravene the concept of DR as I understand.AmadeusD
    Well, one way to get at my point is to think about the claim that it look as if the sun is going round the earth, even though in fact the earth is going round the sun. But if you think about, our visual experience of the phenomena is perfectly compatible with both stories. It all depends on your presuppositions. In one case, the presupposition is that the earth is stationary, in the other, the presupposition is that the sun is stationary.
    Mistakes and disagreements are very often not the result of seeing different objects, but of seeing the same objects differently.
    Compare puzzle pictures.
    It's not a sovereign cure for all our ills. But it would help, I think, if it were more widely recognized.

    The Sun is a good once because while its "immediate" in the sense of it not being recorded, it is eight minutes ago when you get it (the image, the Sun, the light, whatever you'd like to call it). The recording is data while results in light traveling to your eyes with x,y,z properties and presents you with the game which was played, let's say for fun, eight minutes ago. Same for the Sun.AmadeusD
    Our expectations, unsurprisingly, are based on common sense experiences that do not include a noticeable delay. So we are flummoxed when we encounter this new and un-thought-of phenomenon.
    Yet we cope well with the delay in sound. No-one doubts that we hear the starting gun even though we only hear it some time after the race has started.
  • Direct realism about perception
    The experience during the first 10 seconds (and the second 10 seconds) is still the experience of an apple; it just isn't the direct perception of an apple.Michael
    I still have a few questions, I'm afraid.

    1. You seem to leave open the question whether the experience during the first ten seonds is an indirect perception of an apple. It looks as if you are relcutant to say that. Why not?

    2. If P4 is false, and the apple continues to exist for the entire 30 seconds of the experiment, does the experiment not become a case of direct perception?


    1. We do not have direct visual perception of apples, only indirect visual perception of apples
    2. We have direct visual perception of mental phenomena
    Michael
    Don't you need to say that we have direct visual perception of one's own mental phenomena?
  • Direct realism about perception
    I think its possible your description of hte Sun there lands us in the same position: If that, to you, is 'direct awareness' I don't understand the claim. It is not "the object" in any sense - it is light ferried across one AU, bringing with it information about the Sun. We call this 'seeing the sun' because its easier and better for "getting on with it".AmadeusD
    I'm not clear what "it" refers to in "it is not 'the object' in any sense". These examples scramble our intuitions - our common sense. The problem is that there is a slippery slope here. Under normal circumstances, we have no hesitation about saying that we see the computer screen on which we are typing. And yet, there is a time lag between light leaving the screen and it arriving at our eyes. But when we find cases where the time lag is longer, we don't quite know what to say. Nothing wrong with that.
    Let's add in the phenomenon of nova stars, which are stars that explode in a brilliant flash, easily seen on earth, even though the phenomenon is light years away. So far that the star has usually disappeared by the time we see it.
    So, what is it that we see - the computer screen, the sun, the exploding star? If I allow that we don't see the star, I'll need to admit we don't see the sun and we don't see the computer screen. I prefer to work the other way. I insist that we see the computer screen, the sun and the exploding star. I accept it's a choice, but that's the point. There's no right way to go here.
    I don't think that we normally see light, except as reflected or emitted from things - and even then, what we see is the objects from which the light is reflected or emitted. So I was most uncomfortable when I needed to describe what travels from the sun to the earth. Information?, an image? I don't know the right term. But I need to be clear that I see the sun, just as I see the computer screen on which I am writing. Light is the medium that enables me to see, not something that I see in its own right.

    Right. I've been considering exactly this is recent days - ..... I am sorry if this isn't directly on point, but it seems clear to me "error" comes in different kinds, and the one I mean (related to the latter example) cannot be adjudicated by further looking at the object: It can change from red to grey as I see fit, in some sense. I am not bound by the object to see it as a certain colour in that case.AmadeusD
    There's a lot in here. I agree that there are many different sources of error. I would hate to have to create a taxonomy. However, there is one key point here and that is the concept of interpretation. Many errors are errors of interpretation and so do not require positing any kind of intermediary object. That's what is left out of this debate.

    We don't argue about whether "watching the game" on recording is direct awareness of the game, or the recording (well, it seems to me we dont?). I don't quite see a difference here.AmadeusD
    I'm not sure about that. I agree most people will happily say that they are watching the game under all those conditions. But I think most people will differentiate between watching the game live and watching a recording. They will likely not talk of "direct" or "indirect", but still...

    The apple doesn't exist during the second ten seconds and so cannot be a constituent of the experience, and so the conclusion is false. Therefore, one of the premises is false. Given that I agree with P1a, my conclusion is that P2a is false.Michael
    So the experience of an apple in the first ten seconds was not an experience of an apple. H'm.
  • Direct realism about perception
    In the first interval, the act is fulfilled by the apple; in the second, it is not.Esse Quam Videri
    Why not? There is no relevant difference between the information carried by the light in the first ten seconds and the second ten seconds. The presence or absence of the apple when the light arrives is irrelevant. IMO.

    That asymmetry is not captured by describing the light alone, and it’s precisely what distinguishes veridical perception from residual or empty intentionality.Esse Quam Videri
    The destruction of the apple is too late to influence what has gone out; it cannot have any effect until tn seconds have elapsed, i.e. until the third ten seconds. You seem to think that the disappearance of the apple after the light has been sent on its way makes a difference to what is seen. But the apple was there when the light started its journey and so it carries the information that was accurate at the time of dispatch.

    Most direct realists say that we have direct visual perception of apples and trees and everything else that emits or reflects light into our eyes, whereas your account is that we only have direct visual perception of the light. Yours is a strange kind of direct realism.Michael
    I must have drafted something very badly. My position is that I only see objects that reflect or emit light. I don't know what it would be to see light as such - in transit, so to speak.

    P1. If the apple is not a constituent of the experience during the second 10 seconds then it is not a constituent of the experience during the first 10 seconds
    P2. The apple is not a constituent of the experience during the second 10 seconds
    C1. Therefore, the apple is not a constituent of the experience during the first 10 seconds
    Michael
    If that's a good argument, then what's wrong with this?
    P1a. If the apple is a constituent of the experience during the first ten seconds, then it is a constituent of the experience during the second ten seconds.
    P2a. The apple is a constituent of the experience during the first ten seconds.
    C1a. Therefore, the apple is a constituent of the experience during the second ten seconds.

    Exactly. So you're admitting you're seeing light which presents the sun as it was eight minutes ago. I shall leave this there and just see if it lands.AmadeusD

    I think its patently clear that there is no way to assess error beyond error as a mathematical/statistical exercise or a purely practical one (trial and error, i guess) no matter which theory you prefer. The DRist, I think, wants to say that a mediated perception is direct enough to capture error. I just disagree.AmadeusD
    I had in mind the ordinary ways in which we realize we didn't see what we thought we saw. Which essentially means an inconsistency in the stream of perceptions that we experience. (This is a very rough sketch, because I expect you know what I'm talking about.) Philosophers tend to look for decisions on the spot. In real life, sometimes additional information comes in later or from a wider perspective.

    So you're admitting you're seeing light which presents the sun as it was eight minutes agoAmadeusD
    Not quite. I'm seeing light from the sun that carries information about it as it was eight minutes ago.

    Which is batshit insane on the facts, to my mind. Not concluding error might be reasonable, but denying any reason for doubt is just... good god. Not sure i'm cut out for such a wild claim. The following doesn't help, because its entirely recursive.AmadeusD
    Well, perhaps I over-stated the point. I can see the reason for doubt but don't think that it carries much weight.
  • Is Separation of Church and State Possible
    I have to argue this point.Athena
    I wasn't arguing that secular morality is not part of how we bring up our children. So I don't disagree with you at all. My perception of the political landscape in which we leave is that religious leaders attract more publicity and exercise more influence than you would expect, given the size of their congregations. That's all.
    I don't know how many supporters White Christian Nationalists have, but I'm willing to bet that their leaders have more political clout than you would expect from those numbers.

    Democracy depends on the philosophy of Hellenism and Rome. Not the Bible and German philosophers.Athena
    We certainly think we are the heirs of Greece in the matter of democracy. Rome's democracy is, I would think, less influential, given that it was an autocracy for so long. The Bible is certainly not a democratic document. But, in the history of European institutions, there was an ancient German tradition that was very influential.
    A thing also known as a folkmoot, assembly, tribal council, and by other names, was a governing assembly in early Germanic society, made up of the free people of the community presided over by a lawspeaker. — Wikipedia - Thing, assembly
    The reports of this institution go back to the 1st century CE.
    The oldest democratic institution still surviving is almost certainly the Icelandic parliament, which owes nothing to the Greco-Roman tradition and everything to the German-Scandinavian tradition. The Althing was founded in 930 CE.
    (Did you ever wonder why the person who chairs the debates in the UK parliament is known as the Speaker? Now you know.)
  • Direct realism about perception
    Using this account, the naive realist must accept that the apple is not a "constituent" of the experiential episode during the second 10 seconds — because no such apple exists — and so is not the direct object of perception.Michael
    Are you saying that the apple is a constituent of the episode during the first 10 seconds? I would then point out that the relationship of the apple to the light signal during the first 10 seconds and the second 10 seconds is identical. You have no ground for distinguishing between the two.

    I'd say I directly perceive pain, colours, smells, tastes, etc.Michael
    Interesting. There is the introspective perception, in which whatever seems to be so, is so. But truth and falsity don't apply in the usual ways. Perception of actual objects is different, of course, in that our experiences can be corrected. But our perceptions of colours etc. can also be corrected. "That grass isn't really brown - it just looks that way."

    Strictly speaking, insofar as the apple has disintegrated, there is no direct object of perception during the second interval. So while the intentional content persists, the perceptual act goes unfulfilled.Esse Quam Videri
    Speaking even more strictlly, the undisintegrated apple stands in exactly the same relationship to the light during the first interval and in the second interval.

    Given that "I see X" is true if "I indirectly see X" is true, it is a non sequitur to argue that if "I see X" is true then "I directly see X" is true.Michael
    But surely "I see X" is also true if "I directly see X" is true.

    In any case, this is one of hte uncomfortable realities of, at least leaning, IR. How can we explain actual error in perception?AmadeusD
    I thought the selling point of IR is that it can explain error in perception where DR cannot.

    We do not need direct access to objects for that system to work.AmadeusD
    Well, we need to assess whether given indirect perceptions are veridical by some means that is independent of them. What do you suggest?

    But that would be admitted that you're essentially looking at a pale imitationAmadeusD
    I certainly am not. Ex hypothesi, the light waves are derived from the sun and demonstrate to us exactly what the state of the sun was eight minutes ago. There's no better way of knowing what's going there.

    If humans are, as this seems to make clear, restricted to an experience of light reflected from the sun eight minutes ago, we can never be sure and that's fine.AmadeusD
    I don't think there's any reasonable ground for doubt - and we can be sure that if we are wrong, we will know all about it in the next eight minutes.

    We are able to flexibly attend to phenomenology, or to object. But our attentional stance does not speak to the epistemological relationship between phenomenology and object.hypericin
    Yes, we can attend to either. But I don't understand the second sentence.

    Neural nets of course do not function by representing one thing as another. they function by modifying weightings. It’s just a pattern of activations and weights, with no intrinsic “aboutness” or semantic content.Banno
    That's why scrutinizing brain waves is not likely to tell us much about how perception works. The computer analogy does not help with this.

    As in, what is the apple in the noumena?Hanover
    On my understanding, it is unknowable and therefore not perceivable. That's why I think that Kant may have had a point here, but went wrong in suggesting that the noumena is a class of objects. Almost everything that we know about is only partially known. Very few things are either completely known or not known at all.
  • Is Separation of Church and State Possible
    My grandmother never talked about religion,Athena
    I think that both religion and politics were tabu, except on specific occasions. I don't know about wider society, but it seems to be still observed in most of the circles I move in. Perhaps there are generational differences here. There's a good reason for a ban. Those are both topics that are likely to disrupt social and business occasions.

    Franklin Roosevelt was crippled by polio, and the media kept that secret. I am quite sure Kennedy was a womanizer, and the press kept that secret.Athena
    Yes. It was, let us say, tactful of them. Roosevelt's polio didn't interfere much with his work as President. The issues about the Kennedys are more serious. I think that cases like that are part of the reason for today's, perhaps over-done, openness.

    I don't think the state here would care about a gang of church-goers.jkop
    I think that religious lobbying tends to punch above its weight. In spite of the various scandals, religion still tends to command the high moral ground.

    It's unrealistic to expect everyone else to comply to one particular religious belief. Freedom of religion means that people are free to practice their beliefs on condition that they don't violate each other.jkop
    Yes, that's the rule. But the difficulty is getting agreement on what violates people. It can't work unless there is consensus and mutual respect. A large religious community is always going to be at least visible. There's no need to push religious communities into a ghetto, where they can be ignored.

    But that personal sense of liberty does not represent many communities that were established to preserve a separate space that excludes outsiders on various levels.Paine
    Yes. It's the other side of the coin from the worldly churches. Those sequestered communities can become a problem for wider society. It's a difficult balance.
  • Is Separation of Church and State Possible
    Is the separation of church and state even possible?Athena
    A lot depends on what you mean by "separation". I was tempted to say that it is relatively simple to sort out at the institutional level. Quite a lot of states have done that in one way or another. However, it is a comparatively modern invention. For most of human history, church and state have been very closely aligned. Separating them was hugely controversial and complex. Nonetheless, many states have achieved it and it seems to me that it is not longer a hugely divisive issue in most states that I know of. (Iran is a prominent exception.)

    Unlike private belief, a church is a means to practice shared belief in large groups, which then becomes an opportunity for its leaders to control people. A state can therefore use a church to control entire populations.jkop
    That's right. A national church is a powerful instrument of control for the state. So it is remarkable that the Roman Catholic church sustained its position in so many countries for so long. The key point is the question of loyalty, and the independent church could easily become a force to undermine the state. Very few states would put up with that, and during the Reformation in Europe, the dam burst in country after country.

    However, even if church and state are institutionally separated, that doesn't mean the the church(es) will not exercise power in different ways. A church is a large body of organized people, so, at an institutional level, it seems inevitable that churches will have a considerable influence on the state, alongside all the other lobby groups that vie for the opportunity to exercise their influence.

    Desirable as it is, it seems to me asking a lot to ask people to keep their religious beliefs as a private matter. Religions are about how to live life and pursue happiness. Religious beliefs are hugely important to people. It seems to me most unrealistic to expect people to keep their most important beliefs, not only about their own lives, but about the lives of everyone else as well, entirely to themselves.
  • Direct realism about perception
    I say that whatever is the direct object of perception between 10:00:20 and 10:00:30 is also the direct object of perception between 10:00:10 and 10:00:20,Michael
    H'm. Perhaps we agree, then. What is perceived is the same object in both time periods. I see the apple during the first time period, so I also see the apple in the second time period.

    if I'm watching something on CCTV then the thing I'm watching is the object (or "event" if you prefer) of perception but not the direct object of perception.Michael
    OK. So you are really watching the TV, not the event shown on the TV? It sounds a bit daft. A TV just sits there and does nothing. In other words, to describe the object of perception as the TV in this case excludes the point of the exercise, which is not to watch the TV, but to watch the match. So I'll agree that I'm watching the match by means of the TV, if you'll agree that to say that one is watching it indirectly misrepresents the point of the exercise. To repeat, watching the match is the point - the TV is just the means to an end.

    Michael has used a bit of rhetoric to put those opposed to indirect perception on the back foot. They feel obliged to defend "direct" realism.Banno
    Yes. I like the quote marks. I've decided that calling it direct realism is not helpful.
  • Direct realism about perception
    I would say that given the speed of the light and the distance of the apple that you see an intact apple for 20 seconds between 10:00:10 and 10:00:30 — even though an intact apple doesn’t exist after 10:00:20.Michael
    So would I, except that I would specify that you see the apple placed in front of you. The delay in transmission does not affect this. I don't see what all the fuss is about.

    I think we need to distinguish between "object of perception" and "direct object of perception".Michael
    This begs the question. One can only distinguish two objects of perception of the same thing if one has already accepted indirect realism.

    We naively think of this phenomenal quality as being one of the properties that the bird has even when nobody is looking at it, but our science has confirmed that it isn't.Michael
    Back when modern science was being invented, a decision was taken to ignore anything that could not be included in mathematical representations. That is not the same as proving that colours don't exist. All it proves is that modern science cannot recognize them.
    Just as we hear sounds as being located at the origin of the sound waves, so we see colours as being located on the surface that is reflecting them. That's part of the phenomenal quality. A system that did not give that information would be pretty useless, don't you think?
    The bird is reflecting the light waves that we see as red. We see not only the colour, but where the relevant light waves are coming from. The phenomena are not accurately described unless we acknowledge that the bird is red and red is not in our head.

    I would argue that the fault-line in the debate runs all the way through how the subject-as-conscious-subset is to be best understood—specifically, whether it must be characterized as an observer standing behind a curtain of phenomenal intermediaries, or as an embodied mode of world-directed access.Esse Quam Videri
    It is possible to think of the subject as a dis-embodier observer. That happens when we think about the observer in a picture as we are deciphering the perspective in the picture. It's also implicit in the concept of the "point of view" in cinematography. That's the concept that allows this problem to get hold of us. The embodied subject allows us to see perception as part of a system, linked to other activities as part of an internal control system, which cannot sensibly be thought of in the same breath as anything going on outside or beyond or independently of the system. This avoids the temptation to think of perception as a process with a terminus - the "experience". I admit this is all a bit rough-and-ready, but I have little doubt that it is more constructive that trying to establish a direct-indirect distinction in a conceptual vacuum.
  • Direct realism about perception
    Couldn't it just be that we tend to favor one perspective over the other in our daily lives? That one of them is viscerally lived, while the other is more intellectual abstraction?hypericin
    There may be some level at which our personality favours one kind of theory over others. Scepticism seems to be a good candidate - a yearning for certainty.
    I'm not sure how one would describe the personalities that make for direct or indirect realism. Perhaps indirect realists like a safe distance between themselves and the world?

    Perhaps those with a more integrated default feeling of selfhood tend towards direct realism. How about you?hypericin
    A few days ago, I would have said I was a direct realist - possible even a naive one. Now, I'm not so sure. It turns out that I don't really know what direct realism is - and consequently I don't know what indirect realism is. I think I may be a survival from the good old days when almost all philosophy was thought to be meaningless nonsense.
    I wouldn't have described myself as an integrated person. I spend most of my life muddling through. Perhaps it is not an accident that I like clarity a lot more than I like solutions.

    It is wrong to allow for multiple answers to Type B questions.hypericin
    Wittgenstein would certainly agree with that.
    In the Blue Book, he is clear that he is looking for a diagnosis of our philosophical temptations, but he seems to see that as a matter of temptations to misunderstand language. He doesn't, so far as I know, ever get into personality types.
  • Direct realism about perception
    Surely if I see an intact apple 10m in front of me but there is not an intact apple 10m in front of me then the direct object of perception is not an intact apple 10m in front of me?Michael
    There is a problem from the start here. You think that "the direct object of perception" refers to something. If I've understood you, you don't know what the something is. But I'm not convinced that the phrase does refer to anything. But it seems you are looking for something that it exactly what it seems to be, about which I cannot be wrong. That sounds like introspection of a phenomenal object, so that's how I am interpreting you.
    It is clear that if there is not an intact apple in front of me, I am not perceiving or seeing an apple. I think that is true whether we are talking about direct or indirect perception. But it is very tempting to think that even if I am not seeing an apple, if I believe that I am seeing an apple, then I must be seeing something apple-like.
    I am a bit confused about this example, so I will propose another case. When I watch the start of a horse-race, I can see the tape go up and hear the starting gun. But, if I am some distance away, I may hear the gun some time after the tape goes up. But I see no problem in saying that I hear it. Similarly, in the case of the sun, I see no problem in saying that I see the sun as it was eight minutes before I saw it. I can't see any problem that is resolved by proposing that an image is involved in the process.

    I think indirect realism is best understand in contrast to the naive realism it disputes. Whereas "semantic" direct realists might mean something else by "direct" I think both naive and indirect realists mean the same thing, and our perception of distal objects is not direct in the way that naive realism says it is.Michael
    This is a bit confusing. Direct and indirect realism are opposites, but linked in that direct and indirect are defined in opposition to each other. So you would have thought that they could agree on what the issue is. But I don't really understand what naive realism is. (Nor do I know what "semantic" direct realists are.) So I doubt that I can say anything much about this. But what is the thing that both naive and indirect realists agree about?

    I think there is a perception; it's what exists/occurs when the visual cortex is active in the right kind of way. Although whether this thing is physical or a non-physical emergent phenomenon is the biggest question in the philosophy (and science) of mind.Michael
    You are moving between thinking of a perception as an entity and as a process, which makes this rather hard to understand. I guess everyone agrees that there is a physical process involved, and it is worth noting that when this debate started, with Bishop Berkeley, those processes were more or less completely unknown. I think that the issue here is how we regard the internal processing that goes on.

    I’d be interested in understanding what ulterior motive lies behind their promotion. What do we stand to lose if we lose these concepts? I suspect it’s something like losing Zeus when we came to better understand the skies.NOS4A2
    I expect you know about the scene in Shakespeare's play about Macbeth in which he thinks he sees a dagger in front of him and makes a long speech about how guilty he feels about the murders he has committed. It's a hallucination, so he doesn't see a dagger. But yet, we want to say, he must be seeing something dagger-like.

    Neither of these perspectives on the subject is intrinsically wrong. Am I the organism, or the conscious agent? They are both valid ways of looking at what counts as the subject. And so neither direct nor indirect realism is intrinsically wrong. If so, the debate will never end until both sides understand this fact.hypericin
    That's very plausible. But I think there is a bit more to be said about how and why the debate arises and why one position or the other is more attractive to adherents.
  • Direct realism about perception
    This part matters, Banno. When you cast your eyes to the Sun, you literally are not seeing the Sun. You're seeing light from the sun which is eight minutes old. Nothing interesting about this, except trying to get around it to say you're directly aware of hte Sun in any given moment. Just stupid.AmadeusD
    It's certainly stupid if "direct awareness" is defined as "by introspection" - perceptions that are guaranteed correct, even if they are wrong. But, if all perception is by introspection, how do we ever know that it is wrong?
    I have another problem with this. I don't think I see light as such. Surely, light is what enables me to see whatever it is that I see. Compare the role of air when we hear sounds. We don't hear the air; it is what enables us to hear.
    Why can't I just say that I see the sun as it was eight minutes ago?
    I'm sure you are aware that a similar argument applies to everything that we see (or hear).

    The Sun is not what we see when we look at the sun.AmadeusD
    I expect you mean that what we see is an image of the sun. But an image of the sun is not an entity that exists independently of the sun. It is defined by its relationship to the sun. So I can only know that I'm seeing an image of the sun if I know what the sun looks like. Scrutinizing images will never tell me that.

    I would much rather know what mind-dependent thing or substance the light or thick air or any other environmental mediator is supposed to represent in these analogies, because that is what the indirect realist proposes he is directly perceiving. What are their properties, their mass, their speed. Give us a thought-experiment about those things, if you wouldn’t mind.NOS4A2
    I expect you know that there is no answer to that. These objects go by many names, which have in common that they are not reality, but are defined by their relationship to reality. To get anywhere with this debate, we have to look more closely at these various objects (concepts) and understand how they work, what jobs they do.

    Therefore, the direct object of perception during the first 10 seconds when the light travels at 299,792,458m/s is not an intact apple 10m in front of meMichael
    I agree that the exact time it takes for the light to travel to my eye is not really relevant. But this looks to me like a fancy way of saying that I do not see the apple in front me instantly. It does not follow that I don't see the apple, but something else. Compare how we deal with the time it takes for sound to travel to my ears.

    1. The direct objects of perception are distal objects
    2. The direct objects of perception are proximal stimuli
    3. The direct objects of perception are mental phenomena
    Michael
    Any of these might be acceptable, depending on how "direct" (and "indirect") are defined. Perception is a complicated process, which can be be analyzed in many different ways. A major difficulty is that there is no physical entity - a perception - that is the product of the process.
  • Infinity
    I had to double-check but I never posted this! A couple times I wrote a post which contained exactly this point.Srap Tasmaner
    I think it's just a coincidence. I used this example because it occurred to me at the time, not because I had read it before.

    When did shepherds start using notched sticks or knotted strings to count cattle? How on earth did they come up with such an idea?Srap Tasmaner
    I imagine that there was a problem on the second day that someone took someone else's sheep out and came back with fewer. There has to be an agreed record of how many sheep went out.

    Zeno insists that we count the sheep — that is, the rational numbers — as we find them, in their natural order.Srap Tasmaner
    You are making me very curious about the rationals, reals, etc. But I think I'll leave them for another occasion. Thank you for your help. .. and you for yours.
  • Infinity
    Where a function will have exactly one result for each input, a procedure need not.Banno
    Thanks for that distinction. I wasn't aware.

    I hadn't considered that someone would suppose that logical procedures are somehow temporal. I find that idea quite odd.Banno
    I'm glad you agree with me. I had noticed that people often speak as if the procedure (or function) somehow executed itself. Obviously a procedure or function only achieves the result if someone follows the instructions. In that case, talk of a function yielding a result is short-hand, omitting the proviso "when someone follows the instructions. Would that be right? The problem is the idea that the rule executes itself in advance of our following it.

    do we want natural numbers or counting numbers?Banno
    OK. It depends on what you are doing. I was thinking of the point of origin on a graph, but that's not quite the same as counting numbers.

    The difference between numerals and numbers is not ontological, it is grammatical.Banno
    So the numeral is the number in the way that lump of wood is the king in chess? Yes, that's much neater.
    Ockham would be pleased.

    The confusion here is between differing language games; to think that "object" only means tables and chairs and not 7 or fully incorporated companies.Banno
    Oh dear. I obviously made my point very badly. I was trying to get at the point that there are different kinds of object, that's all.
  • Infinity
    Eh. A procedure, as I'm using the term here, accepts some input and yields some output. You show me a natural number, and I can show you another.Srap Tasmaner
    OK. In that case, you carry out the procedure. What bothers me is the idea that a formula like S(n)=n+1 is not a set of instructions about how to do something, but actually does it. So someone might say that formula generates the infinity of numbers. That's not at all the same thing.

    What I was suggesting was that we can replace our pre-theoretical understanding of counting with this system, consisting of exactly two rules (that 1 is a natural number, and every natural number has a successor), and we will (a) lose nothing, and (b) gain considerably in convenience for doing things that build on counting.Srap Tasmaner
    I don't have a problem with that. Something like regularizing, tidying up, making explicit - even get a whole new perspective on something entirely familiar. I can see a point to that.

    But it doesn't necessarily tell you what counting actually is.Srap Tasmaner
    Yes. One would need a demonstration of the written instructions as well. It's the gesture of adding one to the total, letting one sheep through the gate, and one more, let through the next one and so on.

    I've been thinking a little, as we've gone along, about the most famous "primitive" counting systems,Srap Tasmaner
    Yes. I do like half-way houses. They can be very instructive.

    we might ask whether people using one counting system are doing something psychologically different from people using another,Srap Tasmaner
    It would depend on the details.
  • Infinity
    if being is reduced to value, that's idealism, not necessarily platonist though, but most cases yes.Metaphysician Undercover
    Who said anything about reducing being to value?

    A place in an order, or hierarchy is a value.Metaphysician Undercover
    Hierarchy, yes. Order not necessarily. Alphabetical order doesn't imply value.

    What we were discussing was the act of assigning value, counting.Metaphysician Undercover
    Oh, dear. How can one assign a value without assigning it to something? In any case, counting chickens, for example, answers the question "How many" and assigns a value to the brood, if you like. But it doesn't assign any particular value to any of the chickens.

    Why do you allow that sometimes when words refer to ideas (two, three, for example), they refer to things, but sometimes when words refer to ideas (dragons, present king of France), they do not refer to things?Metaphysician Undercover
    When I say that the President is bold, I am talking about the President, not the idea of the President. When I say that the President has executive power, I'm talking about the idea of the President. The idea of something is a different entity (if it is an entity at all) from the something that it is an idea of.
  • Direct realism about perception
    Whether they say their minds or not, a statement has clear meanings. Behaviors can have many different interpretations. And even if you interpreted with mos likely reasonable way, they could say, I didn't mean that at all, or how could you possibly imagined that?Corvus
    Statements do not always have clear meanings and sometime people deliberately mislead us and sometimes we just get it wrong. But not always. The fact that it is possible to get it wrong does not mean that we never get it right, nor does it mean that we cannot correct our mistakes. You are a victim of philosophical scepticism.

    Too broad claim to be meaningful I am afraid. I am not denying philosophy of action. But just saying it doesn't seem to go well with this thread. :)Corvus
    I'm afraid we'll have to agree to disagree, then. I agree that it's a bit on the fringe of this topic.

    Let me provide another example, this one from the biological world.Richard B
    I like that example. I'm also fond of the case of our balance perception. Sometimes we are aware of sensations from it, but most of the time it works without our perceiving any sensations at all.
  • Direct realism about perception
    Plus, folks don't always show their minds via behavior or actions.Corvus
    ... and they don't always show their minds via what they say. Feeling the water and reporting feedback is one thing. Putting on (or taking off) clothes is another. Shivering, sweating. All sorts of clues.
    Behavior and actions would be more of psychological topic.Corvus
    What we say is also behaviour. I don't understand why you regard non-verbal behaviour as outside the scope of philosophy.
  • Direct realism about perception
    Behavior is random and would be too subjective for interpretation.Corvus
    That's odd. That's exactly how I feel about what people say. I would much rather trust how they behave. Actions, as they say, speak louder than words.
  • Direct realism about perception
    This is why these traditional direct realists were naive colour realists.Michael
    I'm afraid that philosophers are not immune from the temptation to coin descriptions of doctrines they disagree with that have a rhetorical effect on those who believe in them.

    We now know both that ordinary objects are not phenomenally present and that the world is radically different to how it appears, hence indirect realism being the scientific view of perception.Michael
    How do we know that the world is radically different from how it appears? From our senses, that is, from the way the world appears to us.

    The perceiving is a mental event, but the cat is not. You see the cat, not a representation.jkop
    Exactly. The idea that the world is actually different from the way it appears does not come from comparing it with anything, which is impossible.

    If one heard that statement, one can only conclude his/her body is feeling hot. That is all there is to it.Corvus
    Well, there is behaviour as well.
  • Infinity
    That's exactly the reality of translation. In most cases there is no true equivalence "across different systems".Metaphysician Undercover
    However, in the case of symbols used in calculation, an equivalence can be established.

    My objection was to the hypocrisy of publicly rejecting platonism then employing platonist principles.Metaphysician Undercover
    So you think that "to be is to be the value of a variable" is a platonist principle? I know you sometimes use words in ways I find hard to understand. This seems to be another case.

    When you count something publicly, you share your assignment of value.Metaphysician Undercover
    Very true. Except that ordinal numbers don't assign a value; that assigns a place in an order. Assigning a value in mathematics just means what you do when you substitute a specific number (or word or sentence) to a place in a formula that is designated for such "values".

    This clearly is about ideas in our minds.Metaphysician Undercover
    No, it isn't. It is about whatever I am assigning a value to.

    we distinguish noun and verb, object from subject, subject from predicate.Metaphysician Undercover
    In the context of traditional grammar, an object can be almost any noun, limited only by the specific subject and verb that you are talking about.

    I think that would be an odd use of language, if every word referred to an object.Metaphysician Undercover
    Not all words refer to anything. That's why there's such a fuss about dragons and the present king of France.
  • Infinity
    Then do we have broad agreement?Banno
    I was referring to the previous two posts. Beyond that, there's much that I agree with, but I still have puzzles (questions), which is not quite the same as disagreement. Partly, they centre on the questions about what it is for a mathematical object, such as a number, to exist. Partly, they centre on what the timeless present means in this context.

    And all this by way of showing that some rules are not procedural at all; they are constitutive norms.Banno
    I agree with that. I don't have a problem about the timeless present in the case of constitutive norms. But in relation to procedures, I do. For the obvious reason, that a procedure takes place in time.

    But we need another step - "1 counts as a number" - to get the procedure moving.Banno
    Of course. You may care to know that, as I understand it, the reason the Pythagoreans did not count 1 as a number was, at least partly, because they saw it as the source of all the other numbers. But don't we also need 0, as the starting-point?

    I have a procedure for producing one natural number from another, but more to the point is that the natural numbers just are what you get when you do that.Srap Tasmaner
    That's reassuring! But I'm not quite clear what it means to "produce" a number. It's not as if we say to ourselves "I need another number here" and so instigate the procedure. Does your procedure create the numbers it produces from scratch or does it just produce another copy of the number????

    Numerals get their identity from roles in activities, not from reference to entities.Banno
    You are not wrong. But now we are getting into trouble with the difference between numerals and numbers. I have a feeling, however, that we may need numbers in order to identify correspondences between numeral systems and perhaps even number systems with different bases.
    I'm also getting puzzled about "to be is to be the value of a variable", or, more expansively, the idea that existence is defined within language games and the rejection of single (absolute?) criterion of existence across language games. I think that approach has a great deal to be said for it.

    What I said, is that if a numeral is taken to refer to an object, a thing called a number, that object must be a platonic object. This is supported by the argument above. However, I do not believe that a numeral refers to an object called a number. I believe that it refers to an idea called a value. I believe that values are not objects, yet they are referred to. Therefore, in no way do I believe that all reference is "object-reference".Metaphysician Undercover
    I think many people believe that if something is referred to, it counts as an object.
    It is true that we equate numbers with values, in the mathematical sense. That's to do with the uses that we put numbers to. So you are right to foreground what we do with numbers - or numerals if you prefer. But I think you slip up when you say that the numeral refers to an idea. That just resuscitates that argument you gave about numbers as ideas. The assignation of value in this context is public and shared, so it cannot be about ideas in our individual minds.

    The only way to assume that the numeral refers to the same object for distinct individuals, is to assume that the object is independent. That's Platonism.Metaphysician Undercover
    I'm getting the impression that your objection is simply to the concept of an abstract object, which you call platonism. Would that be fair?

    An object in your mind is called a mental object. An object in your hand is a physical object. An abstract object is something that isn't physical, but it's not simply mental either.frank
    Yes. Though there are lots of different kinds of physical object, not all of which can be held in your hand. Shadows, reflections, clouds, lightning, colours, sounds, surfaces, centres of gravity and on and on. Similarly with mental objects. Abstract objects also come in lots of different kinds.

    For example, we can do a bijection between the numerals and the things to be quantified. The presumption of "numbers" is superfluous in this case.Metaphysician Undercover
    In the Roman number system "V" counts as five. The Chinese system has 五 (wǔ) for the same number. The ancient greeks used the letters of their alphabet as numerals, so five was the letter epsilon. If you just talk about numerals, you lose the equivalences across different systems.
  • Infinity

    I don't think I can add anything to your replies. I would likely just confuse the issue.
  • Infinity
    Finally, you ask whether we're talking about a generalization or a rule, which sounds quite a bit like asking me if mathematics is discovered or invented. It's an unavoidable issue, and I've suggested before where my intuitions lie, which of course involves answering "neither".Srap Tasmaner
    You are right of course. Like you, I am disinclined to back either option. But I prefer to treat each claim as a comparison or analogy and to note similarities and differences between the language-games. This may appear to be a cop-out, but I think it is more judicious than drawing up battle-lines. The same goes for intuitions, and you give a good example. There is, I think, a similar phenomenon wherever people acquire in-depth expertise; it's not something we are born with, but something that is born of long and intimate acquaintance with the relevant skills.

    I'll only add that I think too often we think we can fruitfully approach this issue by staring really hard at the natural numbers or at triangles and circles to figure out what they really are and where they came from, when we would do better to look at the practice of mathematics to see what's going on there.Srap Tasmaner
    Wittgenstein is very good on this, as I'm sure you know. It is important. I'm fond of the adage that a rich diet of examples is very helpful. That is also part of Wittgenstein's practice.

    Now what I would maintain is that the two are for all intents and purposes the same. That is, the ellipsis as it stands does not tell us how to continue on, and so falls to the sort of view expressed by Kripke; but we dissolve this by insisting that there is a correct way to carry on, given by the model theoretical account.Banno
    It seems clear to me that Wittgenstein would agree with you:-
    201"] That there is a misunderstanding here is shown by the mere fact that in this chain of reasoning we place one interpretation behind another, as if each one contented us at least for a moment, until we thought of yet another lying behind it. For what we thereby show is that there is a way of grasping a rule which is not an interpretation, but which, from case to case of application, is exhibited in what we call “following the rule” and “going against it”.
    You can't follow a rule or go against it until you start applying it. Kripke's mistake was to demand that everything is settled in advance. There's a lot of discussion of similar ideas in the Blue Book (see p.34, 36 etc.)

    At the same time, youa'e right that we can introduce further rules that effectively stabilize new ways of speaking. We can take an earlier practice and add a counts as norm that extends it. In this sense, following a rule can include treating a construction as if it were something more, because we have adopted criteria that make that treatment correct within the extended game.Sam26
    Paper money is a good example.

    Calling on procedure alone is insufficient. We need there to be stuff to perform the procedure on.Banno
    You are right that not all rules are of the same kind. In addition to procedural, there are constitutive rules.

    Math as we know it piggy-backed the development of money. Money, first invented in Lydia, was the first abstract object, typifying value, but not specifying the value of what.frank
    Yes, I think that may well be fair. But I can't help observing the ancient Egyptians had ordinary arithmetic, which, it would seem, was primarily aimed at the logistics of huge work forces - rations, supplies, etc. Ancient Sumer, China and Lombardy all contributed. There's plenty of people to share in the credit and the blame.

    What's difficult for us, in talking about mathematics, or about language, or about concepts, is that we want to pass over the generation upon generation of practice and refinement, to recreate the primordial scene in which someone, however far back, came up with a way of doing this sort of thing that worked, and we want to identify the features of the environment that enabled it to work, very much as if we expect there would only be one way.Srap Tasmaner
    Yes. I do like bits of history as a way of understanding something about our present practices. But I wouldn't want to treat history as sacrosanct in some way. There's nothing wrong with inventing language games to bring out one point or another. Wittgenstein does it all the time, so it can't be wrong, can it?

    The only way that "1" can refer to an object called "a number", instead of referring to distinct ideas in the minds of individual subjects is platonism. Platonism is the only way that "1" can refer to the same thing (a number, an object) for multiple people. Otherwise "1" refers, for you, to the idea you have in your head, for me, to the idea I have in my head, and so on. This is the way that values such as mathematical values are presumed to be objective rather than being subjective like many other values. It's known as platonism.Metaphysician Undercover
    The problem with Plato's ideas is that he tries to apply the model of 3D physical objects to abstract objects. Both exist and can be referred to, but they are not the same kind of objects. Your idea that the only kind of object that is not a 3D physical object is an idea in the mind. Numbers are not just ideas in the mind, but are rooted as objects in our shared practices.
  • Infinity
    I don't have much more to say on the subject. Thanks.Sam26
    That's fair enough. Thank you for your comments.
  • Infinity
    That false premise is what creates Zeno's paradoxes.Metaphysician Undercover
    Do you mean the premiss that space can be infinitely divided, not merely conceptually, but also physically?
    I think most people would accept some version of that. But a physical limit to the process of division doesn't undermine the conceptual description. The physical limit will allows the conceptual division to continue.
    Zeno produces an paradoxical analysis of the race. We can brush it aside and stick with the conventional analysis. There is an alternative, which is not paradoxical. Simple arithmetic and the definition of speed and (distance/time) tells us when Achilles will overtake the tortoise. So it is only a question of how you look at it. But still, people get hung up on the paradox. However, I think the real problems emerge in the analysis, for example, of circles and ellipses, which are not so easily dealt with in that way.
  • Infinity
    Calling it “unfinished” need not mean a temporality is at work, it can mean the grammar contains no stopping point.Sam26
    OK.

    On your Aristotelian comment, Wittgenstein might ask what “actual” and “potential” are doing in our language, and whether they clarify the use of symbols or just swap one picture for another.Sam26
    As I said, I don't think the Aristotelian account clarifies anything much. If anything, it deepens the mystery.

    And on existence, I am not denying that numbers exist. I’m blocking a slide in what “exist” means here. In mathematics, “exists” is governed by proof and use, not by the idea of a completed infinite inventory sitting somewhere. So, the rule can be firm without that extra picture.Sam26
    Perish the thought of denying that numbers exist!

    The philosophical problem isn’t infinity; it’s the pictures our words seem to imply when we remove them from the practice that gives them sense. When we keep the use fixed, the mystery largely disappears.Sam26
    Yes, but here, we need to deal with the adaptation of terms that already have a use in some contexts, but need adaptation for this specific context.
  • Donald Trump (All Trump Conversations Here)
    So now, there’s actually a risk of civil war or serious violent unrest. Trump is too stupid and narcissistic to draw back and the governor is calling for resistance, calling in the national guard.Christoffer
    You may be underestimating him (or his advisers). I've heard a suggestion that the plan is to provoke serious unrest so that the Insurrection Act can be invoked and the elections suspended. Much as I admire Minnesota, it might be wise to save the opposition until after the election.
  • Infinity
    Wittgenstein’s point is to be careful not to treat the infinite as a finished object sitting out there. What we really have is a rule and the proofs we proceed with.Sam26
    I wouldn't argue Wittgenstein's point, though doesn't that point us firmly in the direction of the Aristotelian distinction between actual and potential infinity? Which itself leans heavily on our actions in relation to infinity. The second sentence is true if we are talking about our activity in relation to mathematical formulae.

    That leans constructive in spirit, but it isn’t a knockdown argument that constructivism must be true.Sam26
    Fair comment. I used to think that constructivism was the way to go. No longer. Now, I'm seriously bewildered and working things out. I have noticed how time and process show up so often in talk about infinity and am wondering how deeply rooted it is.
    Perhaps it is a metaphor. Perhaps it is an application of terms in a new, stretched, language game. Notice, though that your talk of the infinite as unfinished implies a process.

    A rule can fix the standards for correctness without implying that the entire infinite list exists as a finished thing. We often feel “it’s already there” because the rule is firm, but what’s “already there” is the method, not a completed infinite inventory.Sam26
    Aren't you leaning here on an idea of what exists and/or is real? Isn't it that idea that leads us into difficulties about the status of the sequence. In one way, you are right. In another, you seem to be saying that there are natural numbers that don't exist or aren't real (non-mathematical sense of real). Aristotelian talk of potential numbers tries to find a half-way house, though I think it is a most unhelpful concept.

    "Next" here implies a relation, and mathematics is the study of the relations between its "objects," which it is happy to treat as effectively undefined.Srap Tasmaner
    Are you happy to defend an interpretation which regard S(n)=n+1 as a remark about the relations between numbers? It must be that, unless you are thinking of the number line, which is a spatial metaphor. But if is just a remark about the relations between numbers, it seems more like a generalization that a rule.

    There is no such thing as empty space between objects.Metaphysician Undercover
    Empirically, that may be true - especially if you regard a field (gravity, magnetism) as a medium. But setting up a set of co-ordinates does not require a medium in addition, so far as I can see.