Comments

  • Knowledge is true belief justified by true premises
    Again, you're just repeating back to me what your preferred theory of knowledge is ("yet, you do not know it, because the truth is..."). You've not demonstrated that I don't 'know' it because the truth of the matter is what determines whether I know something.Isaac

    If it sounds like I am talking to you in absolutes, it is because I am appealing to your presumed competence as a speaker of English. If you think that you were right when you said "I know I have apples in the bag", or if the statement was correct until the moment you opened the bag, if you think that is how the word 'know' works, in the plain language you and appeal to while simultaneously disregarding , then we really have nothing further to discuss. You can cite a hundred dictionary definitions, that is completely irrelevant. Tell me, is this how "know" works for you?

    Yes. I'm deflationist about 'truth'. I thought I explained that earlier by referencing Ramsey. The entire problem here is the definition of "I know" for someone deflationist about truth.Isaac

    Your initial argument was that the truth is inaccessible, and therefore cannot be a component of the concept of 'knowledge', because how can people access something which is inaccessable? And yet, people use the concept 'truth' itself quite happily, without giving Ramsey a second or even first thought. Even if absolute truth is theoretically inaccessible, this in no way prevents people from making use of the concept.

    Whatever your theoretical notion of truth may be, you have to deal with the fact that truth is a component of the plain English concept of knowledge. To deny this, you have to account for all of the plain English examples I have given which strongly suggest that is the case. In spite of mental gyrations requiring meaning to shift with tense, which is in any case irrelevant, I haven't seen anything approaching that from you.

    I've shown the problem with this above. If "I know" is simply a claim to knowledge, then we have to admit of the disjunction "I believe I know..." and "I know I know...". Then we have to admit of "I believe I know I know..." and "I know I know I know...", and so on.Isaac

    These marginal formulations could charitably be construed to communicate degrees of certainty. The fact that you can construct these cumbersome sentences is supposed to say what exactly?
  • Knowledge is true belief justified by true premises
    You seem to use "Knowledge" as an idealistic "quality" that a claim has it or not...when its the other way around.Nickolasgaspar

    You can call it idealistic, but I am not discussing platonic ideals. I am discussing the concept of knowledge, as we use it daily. A guess is not considered knowledge until it has been verified, not ideally, but in the mundane, everyday English sense.

    Knowledge and truth are not(always) the same thing.
    I.e. We know Relativity(in an ontological sense) is wrong but we still use it for its instrumental value.
    Nickolasgaspar
    I know how to use this technique, I know it has instrumental value, I know it doesn't match the world ontologically. The can all be true, justified claims.
  • Institutional Facts: John R. Searle
    Exactly. Yet your claim was that such assertions refer to objects in the external world.Isaac

    "External world" is not what I want. Rather, external to the speaker.

    My point is that there is a clear external-to-the-speaker/internal-to-the-speaker distinction between assertiives/expressives, and directives/comissives.

    So then there should be another, internal to the speaker, corresponding category to declaratives.
  • Institutional Facts: John R. Searle
    What, that we refer to the ratio with the sixteenth letter of the Greek alphabet? That's a geometric fact?Isaac

    If we take π to mean the number, which people generally do, your quote is a assertion of a geometric fact:
    "the ratio of the diameter of a circle to it's circumference is 3.14159..."

    If we are talking about the use of the symbol itself, that is also an assertion of convention:
    "the ratio of the diameter of a circle to it's circumference is denoted by π"
  • Knowledge is true belief justified by true premises
    A claim is accepted as knowledge when it is in agreement with available facts and carries an instrumental value.Nickolasgaspar

    A random guess may be in agreement with facts, it may have instrumental value, but it is not knowledge.

    We can only evaluate a claim as true or not true based on the facts that are currently available to us...not in an absolute sense, because we don't know if we have all the facts needed to make such an absolute evaluation.Nickolasgaspar

    I see no inconsistency with this account of truth and JTB. If we cannot evaluate truth in an absolute sense, then we cannot evaluate knowledge either. We can only claim that something does or does not hold the status of knowledge. What is or is not considered knowledge changes over time, because our body of currently accepted truths, as well as the justifications we consider legitimate, change over time.
  • Knowledge is true belief justified by true premises
    So to properly use the word knowledge, the public rule governing it's proper use (the rule which we reference to say what it 'means') cannot use the concept of what is 'actually true' since no-one in the public rule-making community has this information. It can only use what they think is true. But that (as above) already constitutes that which is well-justified - and being well-justified is already one of the criteria for 'knowledge' under JTB.Isaac

    There are plenty of examples of well justified falsehoods, like the one I gave above.

    By your logic, the use of the everyday word 'true' would be impossible, since no one has access to the truth. The way out is simple: every "I know", every "this is true", is a claim to knowledge and truth. We don't need direct access to the truth to make claims to it.
  • Knowledge is true belief justified by true premises
    So, like our apple, proper justification (relative to the context) is the truthmaker of "I know X". If it turns out that (like our apple not being there) that I don't have proper justification for believing X, then the proposition "I know X" is false.Isaac

    Suppose you bought a paper bag of apples, and left them in the car for a few minutes when you went to the post office. While you were away, a thief broke into your car, and replaced it with a bag of oranges. Later, you claim, "I know I have a bag of apples in the car". By every standard you are perfectly justified in believing so. And yet, you do not know it, because the truth is, you have a bag of oranges.
  • Knowledge is true belief justified by true premises
    Perfectly good English, just wrong.T Clark
    Oh? And why is it wrong?
  • Institutional Facts: John R. Searle
    I see the distinction, but it's less clear with something like "the ratio of the diameter of a circle to it's circumference is Π" This doesn't apply to any object in the external world (unless you want to posit the existence of perfect circles), but it declares rather than supposes.Isaac

    This is neither declaration nor supposition. It is an assertion, of a geometric fact. Not an expressive, because geometry, like the physical world, is something external to the speaker.
  • Knowledge is true belief justified by true premises
    'Knew' is the past tense. We use the past tense differently to the present tense.Isaac

    So now meaning shifts with tense to keep your account coherent. And I'm the dogmatist.

    Yet, tense has absolutely nothing to do with it.

    He knows that 8*8 is 63.

    This is simply bad English, given that the speaker presumably knows that it does not. "Know" in English cannot be applied to something that is known to be false. Similarly, it cannot be applied to a guess, and be good English. This is not how "know" ought to be used, it is how it is used. These are the rules that JTB captures.

    JTB is not perfect (which I pointed out in my op). But it is a far better model of how we actually use the word than your mental state theory.

    to be clear, I'm not looking for someone to clarify what the standard theory is, I'm trying (or was) to explain a different theory (broadly Ramseyan - or my interpretation of it).Isaac

    Please.
  • Knowledge is true belief justified by true premises
    There were Greeks as long ago as 500 bce who theorized that the earth revolves around the sun. Just type in ancient Greeks heliocentrism.T Clark

    Yeah yeah. From what I read this was a minority view. But this is utterly beside the point. Answer the question. Did MOST of the ancient Greeks know the earth was the center of the universe?

    This is not even philosophy anymore, just basic English.
  • Institutional Facts: John R. Searle
    An inward declaration would make no sense in the same way a private rule would make no sense. A declaration is a public event, creates a public rule.Isaac

    Every speech act is public, that goes without saying (leaving aside self talk). The distinction is, what is the domain of this rule? Where does it happen? Declarations happen in the world: a naming assigns a name to a being or object. Suppositions on the other hand, happen purely in the mind, of the listener and speaker.
  • Institutional Facts: John R. Searle
    Not sure what you mean by "inward".Banno

    Assertives and Expressives are quite similar. The difference is that assertives assert about the outer world, expressives assert about the inner world of the speaker.

    Similarly, a Directive and a Commissive are quite similar. Directives direct out, at someone other than the speaker, while a Commissive directs in, to the speaker himself.

    And in the same way, I propose that Declaratives by fiat create an external reality, in the world, while Suppositions by fiat create an internal reality, in the minds of the listeners.
  • Institutional Facts: John R. Searle
    But on first glance I think you are right that suppositions are declarations.Banno

    After thinking about it, by Searle's scheme there must be a missing category:

    There are assertives, and inward assertives, which are expressives.
    There are directives, and inward directives, which are commissives.

    But that leaves declarations as the odd man out. Mustn't there be corresponding category of inward declarations?

    There is, and it is precisely: suppositions. Declarations declare something into existence in the world, suppositions declare something into existence in the mind.
  • Knowledge is true belief justified by true premises
    whether or not this activity is in itself philosophy, you must agree that it does, or can, bring the decider into contact with philosophical issues.

    Such confrontations happen throughout everyone's life.
  • Institutional Facts: John R. Searle
    What about suppositions? Is this a missing category? Suppositions cut across reasoning ("Suppose the following is true, then what follows?") and storytelling ("in a world where...").

    Are these directives? ("entertain this thought in your head"). But this is an order that has no force. It is an activity the listener may take up, at their choice. Are they declarations? The speaker is declaring a suppositional reality into existence? Or do we really need a separate category?
  • Knowledge is true belief justified by true premises
    Knowledge is adequately justified belief, whether or not it is true.T Clark

    This is untrue (and therefore, not knowledge).

    Did the ancient Greeks know the earth was the center of the universe? This is bad English. It is proper to say, they believed, or thought they knew.
  • Knowledge is true belief justified by true premises
    If I wanted a lecture I'd visit the university. I came here for a discussion. If you can't even be bothered to justify your assertions, then there's no point continuing. Things are not the case simply because they seem that way to you.Isaac

    Whatever dude. You are wrong, obviously wrong, and I made it abundantly clear. If your can't admit it, that's on you.

    If you can't address the arguments I made, you can say so. No one will think less of you (in fact they would think better). But instead you leave in a huff. What more can one expect of a pro Russian anti vaxxer?
  • Knowledge is true belief justified by true premises
    I'm not 'confusing' them, I'm arguing that they amount to the same thing.Isaac
    You are absolutely confusing them.

    But, using this analysis, "I know where my hat is", when used to describe a high degree of confidence in my belief about the whereabouts of my hat, is exactly the right use of the term, and so it is true that "I know where my hat is", because I used the term correctly. Even if my hat turns out not to be there.Isaac

    "I know where my hat is" is a perfect exemplar the verb "know". Nonetheless, if the hat is not there, it is an incorrect claim, no matter the degree of belief.

    The ancient Greeks did not know the world was the center of the universe. They merely thought they knew, with complete and justified confidence. And they made this claim in absolutely perfect Greek.

    Ah, you've misunderstood my example (or I've been unclear). In your example, I couldn't possibly justify my statement because I'd never been to the city before.Isaac

    No, you misread mine:

    Consider, we are in a city we haven't been to in 10 yearshypericin

    You have a foggy memory there is a pub at the end of the road. The memory was wrong. But by chance, a pub was built there in the last month. You were right that there is a pub at the end of the road. But you were wrong that you knew it.
  • Knowledge is true belief justified by true premises
    Given that Gettier Problems were presented to show that the JTB definition of knowledge is insufficient, having to add a fourth condition to overcome them shows that the JTB definition of knowledge is insufficient.Michael

    Fair
  • Knowledge is true belief justified by true premises
    I've never found such decisions hard at all.Tom Storm
    Hmm, maybe it is the fact that I have always been philosophically inclined that has made these kind of decisions nightmarishly hard for me!

    "I like this home. At least I think I do. But do I really know that? What if it is a passing whimsy? How do I distinguish my preference of the moment from a stable preference that will endure 10 years from now. I won't even be the same person by then! So how can I make this decision for a person I hardly know? Do I really even want a house? It is the largest purchase I have ever made, how do I justify spending the accumulated capitol of a lifetime on one? Is home ownership even my preference, or a socially normative one? Why do I really want one? How do I know there is not something drastically wrong with the house. There is an inspection, but is that sufficient evidence? How can it rule out every problem? Is the inspection not an instance of motivated reasoning? And it does not rule out horrible neighbors, a dog that barks at 3am, a wildfire that will destroy it in 5 years. The world is entering a phase of chaotic change, is it rational to tie oneself completely to one location in what might be a new and unpredictable epoch..."

    These are the thoughts that will actually, frantically, go through my head, with my exasperated realtor wondering why I am passing on yet another perfectly good house. I have never bought one!
  • Knowledge is true belief justified by true premises
    n ordinary life, epistemology is of little consequence - in picking a partner, choosing a home or selecting a car, working out what university degree to do, or which job to take, what shopping to buy - we do not worry about the problem of induction, or the correspondence theory of truth, or philosophy in general.Tom Storm

    I completely disagree. All of these life decisions are fraught with epistemological and philosophical considerations. It is what makes decisions so hard. If philosophy were a quaint exercise confined to certain abstract questions, it would be utterly uninteresting.
  • Knowledge is true belief justified by true premises
    What if there isn't an 'underlying logic'? I mean there's no intrinsic reason why there need be. what if 'know' as in "I know my keys are around here somewhere!", is different in meaning to 'know' as in "she knew where her keys were".Isaac

    I'm not sure that's true, but if this is the case, that's totally fine. I'm not committed to the meaning of words being rigid. Natural language is allowed to do that. Then, I'm only interested in the latter sense here.

    The word 'know' would never be used if used according only to the principle of true facts with true premises.Isaac

    No no no, you are confusing truth condition with condition of use. The truth condition of "to know" is nontrivial and very debatable. But the condition of use is both variable between people, and might be as simple as a feeling of confidence that something is so. These are totally disjoint things. And this question of "what is knowledge?" is here asking about the truth condition, not about the conditions of use.

    All these debates and claims we make on this forum are complex, with very complex truth conditions, if we were confined to making true claims only, we would be paralyzed, and say nothing. And even then, we could only limit ourselves to making claims we felt were true with absolute certitude. We would still be wrong 95% of the time.

    When I claim "I know the pub is at the end of the road" I simply mean that if you walk to the end of the road, you will find the pub there. So if the pub I thought was there had been knocked down, but later replaced by another, I don't see a problem with saying that I 'knew' there was a pub at the end of the road, since, if you walk to the end of the road, you will, indeed, find a pub there.Isaac

    I disagree. "I know there is a pub is at the end of the road" is distinguishable from the statement of bare fact, "there is a pub at the end of the road". The truth condition of the first is not that of the second. The first adds additional constraints to the truth condition: "There is a pub at the end of the road, and additionally I stand in a knowing relationship with that fact".

    Consider, we are in a city we haven't been to in 10 years. You say "I know there is pub at the end of the road." We go to the end of the road. There is a pub with signs of fresh construction, and a "grand opening" sign. You say, "I knew it!". This would be a joke. Because, while there is in fact a pub at the end of the road, you absolutely did not know it.
  • Knowledge is true belief justified by true premises
    An analysis of knowledge is either an analysis of what the word 'knowledge' means - how we use the word, or an analysis of what the word ought to mean - how it would make most sense in some particular context, to use it.Isaac

    "Knowledge" and so many other words are like "obscenity" in one of the trials in the 60's: The judge couldn't define it, but he famously "knows it when (he) sees it".

    We make these distinctions easily enough, without knowing how we do it. What, if anything, is the underlying logic? This is the task of philosophy as I see it, in answering these "what is" questions.

    In every day use, knowledge is most often simply a category of belief we have a high confidence inIsaac

    But this does not cut it, even by the standards of every day use. Sure, if you have a strong conviction, you might claim to know something. But if you had said, "I know my keys are around here somewhere", I can ask, "In retrospect, did you really know it?"

    • If in fact the keys were in the car, you did not know it.
    • If you knew it because you are a Pisces, you did not know it, even if they were around here somewhere, and you are in fact a Pisces.
    • If you knew it because you remember leaving them on a table, when in fact that memory was from yesterday, but they did fall out of your pocket here anyway, you did not know it.

    We make these intuitive judgements independently of how strongly you happened to hold the conviction that your keys were around here somewhere.
  • The Origin of Humour
    You are proposing an equivalence between supported theory (the world is older than 5000 years) and an unsupportable theory (that men did not like hairy women).god must be atheist

    I am proposing an equivalence between arguments: they are equivalent, and equally weak. You can (incorrectly) claim sexual selection is unsupportable. But not because, "what if it all just happened at once?". This is a miracle, and as an explanation, compared to the Darwinian model, it is fantastically unlikely trash.
  • The Origin of Humour
    My counter point will be this: mutations occur randomly, and at times in groups. The more intelligent, more verbal, more sexy humans of today may have mutated from proto-humans all at once in these aspects: sexual features, sexual preferences for looks, intelligence, and verbal skills.

    Who is to say this has not been one whopping mutation?
    god must be atheist

    Who is to say that god didn't create all the animals in their present form 5000 years ago, and leave fossils in the ground to tease heretical archaeologists.

    I contest that this question can be decided.


    Other than that, by describing them as MVHPHs, you nicely described half of the males of the currently surviving specimens of the human race.god must be atheist

    :rofl:
  • The Origin of Humour
    So, do you not believe in sexual selection in other animals as well? Or is it just humans? Not that either are in dispute, afaik.

    It is not an all or nothing thing. Ugly people/animals still get opportunities to mate. Sexual selection just needs to provide an advantage, both numerically (how many times do I get to mate?), and qualitatively (how good of a mate can I get?). The offspring of good mates will have this same advantage over the offspring of less favored individuals.

    Clincher: Think about it another way: let's suppose that you were right. Therefore the "unsexy" gene ought to have been eliminated from the gene pool by nowgod must be atheist

    Everyone you see is the product of rampant sexual selection. All the really "ugly" genes, unfavorable to sexual selection, have been weeded out already. How attractive do you think a hairy, minimally verbal proto-human would be to you? What you perceive as ugly is one point on a very narrow band, compared to possible physical and mental variation.

    How do you explain that some features are attractive to you, and others are not? How did that happen?
  • The Origin of Humour
    There is another logistics-related argument against "only the best-looking and sexiest" survive. Or humorous, intelligent, etc., as the case might be.god must be atheist

    To be sure, unattractive "borons" still have sex, now, and most likely prehistorically. All that is required is that the sexy attributes provide an advantage. You are arguing against sexual selection in its entirety, which is a non-starter.
  • The Origin of Humour
    The problem is that less funny guys dated less good looking girls, and Borons (boring morons) dated ugly girls. They all had children, who survived to adulthood.god must be atheist

    Modern conditions are a mere blip, and irrelevant to our evolutionary history. This might be true today, where huge, concentrated populations, and monogamy, are the norms.

    But we evolved as tiny, polygamous populations. There, fucking of the fittest reigns.
  • Can morality be absolute?
    Don't think of wright and wrong. Think of how harmful it is. If one's moral view creates harm than good, then it is immoral. On a lesser intensity, it is offensive.L'éléphant

    This doesn't really help. One person's harm is another's good.
  • What is Philosophy?
    It is the attempt to use argument and reason alone to derive truth, in those shrinking domains where this is considered a legitimate undertaking. These domains just lack a better method.

    Academically, the legitimacy of this activity is bolstered with vast amounts of canon.
  • The Origin of Humour

    Intelligence correlates poorly with creativity, well with humor:
    https://www.jstor.org/stable/20157303?seq=1#page_scan_tab_contentswo

    Here is one which both describes the link between humor and verbal/logical reasoning, and... completely supports my theory!!
    https://www.psychologytoday.com/sites/default/files/attachments/95822/humor-predicts-mating-success.pdf
  • The Origin of Humour
    Correlation is not causation would have been a better way of putting itI like sushi
    Correlation is all that is required here
    So, my concern would be that it is the creative element in better humour rather than some underlying ‘sense of humour’.I like sushi
    Except, they have studied both. Humor is more correlated

    Plus if some people have a bad sense of humour they still find each other funny and mate just as much.I like sushi

    Unattractive people also mate, so what

    Not to mention that ‘emotional/social intelligence’ is not actually ‘intelligence’ (as in the ‘g’ factor).
    5h
    I like sushi

    Humor correlates with spatial, verbal, and logical intelligences
  • The Origin of Humour
    There is no evidence that humour correlates with humour. It does have some relation to creativity though, but how significant that is is probably still a matter of research and investigation.I like sushi

    You speak with authority, I guess you have conducted a comprehensive review of the relevant research. But a cursory search does not support your findings. Just an example, which cites multiple papers:

    https://www.lifehack.org/378304/there-any-link-between-humor-and-intelligence
  • The Origin of Humour
    Humor is a proxy for intelligence, and a vehicle for sexual selection.

    It's a cliche, the hot girl with the inexplicably ugly guy. Why is she with him? "He makes me laugh".

    We are all the products of runaway sexual selection, which selected for intelligence, by means of humor. Humor is the origin of human intellect. This same process selected, secondarily, for taking pleasure in hurmor: after all, it was the females who enjoyed humor the most who selected the funniest guys. They bore both the funniest and smartest guys, and the smartest girls who loved their guys the funniest. These outcompeted their duller contemporaries, both due to the intelligence for which humor is a pretty reliable marker, and because of the growing population-wide preference for funny men, resulting from this same process.

    Just my theory.
  • The self minus thoughts?
    Do you know that, personally?

    Are you able to have bodily feelings or emotions without also having some thoughts along with them?
    baker

    I do, being human. I think with a little reflection you will agree. For you to experience the itch of a mosquito bite, must you constantly think, I'm itching? If so, this must be the most distracting event possible, precluding all other thought and activity.

    To feel fear, one must already have certain beliefs about the workings of the world and the meaning of life.baker

    Obviously false. Babies and animals feel fear.

    How do you know?
    Is it because he merely can't speak or write, due to the stroke, or is he truly mentally disabled?
    baker
    I stipulate that he has lost the ability to think: to self talk, and to visualize.

    If one measures oneself the way a not particularly compassionate external observer might judge one, then the result is going to be truly meagre.baker

    This person has lost the ability to measure anything.

    What one considers to be an acceptable reply to these questions depends on one's intention for asking thembaker
    I am interested in the nature of self, and of sentience in general. Is the self fundamentally composed of all the sensations it feels, internal and external? Or is there something more?
  • The self minus thoughts?
    Back to topic!

    One thing I didn't consider: without thoughts, we still have bodily feelings, and emotions. These are both egoic in the sense that they mark a "me" as distinct from the sensory world. Unless I am dissociated, this pain is my pain, and I am frightened.

    But then, suppose we subtract these. A hapless individual suffers a stroke. As the cerebral artery occludes, his train of thought fades away, his mind is utterly empty. He is terrified, but is unable to mentally formulate his situation in any way. He sees, he hears, he is afraid, he has a throbbing migraine. That is his experience. Can you empathize with this state?

    Then, his migraine fades away, replaced by an all encompassing numbness. Yet even numbness is a feeling, what he feels is nothing. His terror is replaced by a corresponding emotional blankness. He sees bright lights passing above him. He hears the doctors comment on his condition, but can't seem to understand. He smells the antiseptic odor of hospital, and tastes copper in his mouth. That is all. No thoughts, no feelings, no sense of the body. Can you empathize? Is this being strictly speaking still sentient?

    Sadly for our subject, the cerebral artery, a mighty river in more halcyon days, is now barely a stream. Sight is gone. Taste is gone. Smell is gone. Hearing is gone. What is left? Is it a unperturbed sea, as per ? I contend, there is nothing left at all. Our hero is now a vegetable.
  • Esse Est Percipi
    So, in objective idealism, ideas are still ontologically basic, but there is no question about them not being real when you aren't thinking about them.Count Timothy von Icarus

    So really I was conflating realism and materialism.

    Berkeley dedicates much time to illusions and hallucinations because these are the obvious objections to his system.Count Timothy von Icarus

    I wonder how Berkeley would respond to this question: how do I know that the red I see is the red God sees? For all I know he sees blue when I see red, or he hears an electric guitar when I hear the violin. So I might be hallucinating my whole life, and yet the world appears entirely self-consistent. Must he dogmatically insist that God ordains that everyone perceives in the same way?

    Similarly, how could he address animal perception? It is very unlikely that animals perceive the same way subjectively that we do. Must god simultaneously perceive in the manner of every sentient creature? Or must Berkeley insist that animals lack subjective experience?

    It seems that Berkeley has replaced the dualism between material and perception with a more ad hoc dualism between mortal perception and God's perceptions.
  • Esse Est Percipi
    You are conflating realism and idealism as the same things.Count Timothy von Icarus

    Huh? I am?
    When you take off the rose colored glasses in Berkeley, the world doesn't change, you just don't have tinted glasses onCount Timothy von Icarus

    I still don't see how this case is resolved for Berkeley. The world is real, and mental, and we access it via phenomenal perception. No reference may be made to a material reality which underwrites the perception. So, is reality rose tinted or no?
  • Esse Est Percipi
    The forum is presently dominated by fools with little to no grasp of basic philosophical or logical notions and yet with thoroughgoing confidence in their opinions; by those who have failed to learn how to learn.Banno

    It must be a comfort to be in such good company!