110 ideas
2797 | As coherence expands its interrelations become steadily tighter, culminating only in necessary truth [Dancy,J] |
Full Idea: As our system grows in coherence, the interrelations between its parts becomes tighter and tighter;… at the limit contingent truth vanishes, leaving only necessary truth. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 14.7) |
15186 | In the tenseless view, all times are equally real, so statements of the future have truth-values [Le Poidevin] |
Full Idea: The tenseless stance is quite clear: all times are equally real, so there are truth-makers for the future-tense statements, which consequently have determinate truth-values. | |
From: Robin Le Poidevin (Intro to 'Questions of Time and Tense' [1998], Intro) | |
A reaction: The tenseless view is linked to the B-series view, and to eternalism. This seems to mean that Aristotle took a tensed A-series view of time. |
2768 | The correspondence theory also has the problem that two sets of propositions might fit the facts equally well [Dancy,J] |
Full Idea: The correspondence theory as well as the coherence theory has the problem of more than one set of truths. Why can't two sets of propositions "fit the facts" equally well? | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 8.2) |
2765 | Rescher says that if coherence requires mutual entailment, this leads to massive logical redundancy [Dancy,J] |
Full Idea: Rescher complains that if coherence requires mutual entailment, then what is entailed is logically redundant, and the whole system is infected with mutual redundancy. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 8.1) |
2769 | If one theory is held to be true, all the other theories appear false, because they can't be added to the true one [Dancy,J] |
Full Idea: From the point of view of someone with a theory every other theory is false, because it cannot be added to the true theory. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 8.2) |
2766 | Even with a tight account of coherence, there is always the possibility of more than one set of coherent propositions [Dancy,J] |
Full Idea: No matter how tight our account of coherence we have to admit that there may be more than one set of coherent propositions (as Russell pointed out (1907)). | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 8.2) |
22919 | A thing which makes no difference seems unlikely to exist [Le Poidevin] |
Full Idea: It is a powerful argument for something's non-existence that it would make absolutely no difference. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 02 'Everything') | |
A reaction: Powerful, but not conclusive. Neutrinos don't seem to do much, so it isn't far from there to get a particle which does nothing. |
2781 | Realism says that most perceived objects exist, and have some of their perceived properties [Dancy,J] |
Full Idea: Realism in the theory of perception is that objects we perceive usually do exist, and retain some at least of the properties we perceive them as having. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 10.2) |
13795 | Properties only have identity in the context of their contraries [Elder] |
Full Idea: The very being, the identity, of any property consists at least in part in its contrasting as it does with its own proper contraries. | |
From: Crawford L. Elder (Real Natures and Familiar Objects [2004], 2.4) | |
A reaction: See Elder for the details of this, but the idea that properties can only be individuated contextually sounds promising. |
13798 | Maybe we should give up the statue [Elder] |
Full Idea: Some contemporary metaphysicians infer that one of the objects must go, namely, the statue. | |
From: Crawford L. Elder (Real Natures and Familiar Objects [2004], 7.2) | |
A reaction: [He cites Zimmerman 1995] This looks like a recipe for creating a vast gulf between philosophers and the rest of the population. If it is right, it makes the true ontology completely useless in understanding our daily lives. |
13797 | The loss of an essential property means the end of an existence [Elder] |
Full Idea: The loss of any essential property must amount to the end of an existence. | |
From: Crawford L. Elder (Real Natures and Familiar Objects [2004], 3) | |
A reaction: This is orthodoxy for essentialists, and I presume that Aristotle would agree, but I have a problem with the essence of a great athlete, who then grows old. Must we say that they lose their identity-as-an-athlete? |
13794 | Essential properties by nature occur in clusters or packages [Elder] |
Full Idea: Essential properties by nature occur in clusters or packages. | |
From: Crawford L. Elder (Real Natures and Familiar Objects [2004], 2.2) | |
A reaction: Elder proposes this as his test for the essentialness of a property - his Test of Flanking Uniformities. A nice idea. |
13796 | Essential properties are bound together, and would be lost together [Elder] |
Full Idea: The properties of any essential nature are bound together....[122] so any case in which one of our envisioned familiar objects loses one of its essential properties will be a case in which it loses several. | |
From: Crawford L. Elder (Real Natures and Familiar Objects [2004], 3) | |
A reaction: This sounds like a fairly good generalisation rather than a necessary truth. Is there a natural selection for properties, so that only the properties which are able to bind to others to form teams are able to survive and flourish? |
2745 | A pupil who lacks confidence may clearly know something but not be certain of it [Dancy,J] |
Full Idea: Why isn't certainty required for knowledge? Because we are often prepared to allow that someone does in fact have knowledge when the person is so uncertain they would not claim knowledge for themselves (the 'diffident schoolboy'). | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 2.1) |
2755 | If senses are fallible, then being open to correction is an epistemological virtue [Dancy,J] |
Full Idea: In my view, once we admit that our beliefs about our sensory states are not infallible, incorrigibility would be a vice rather than a virtue. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 4.3) | |
A reaction: This seems to be axiomatic among modern philosophers, and I certainly agree with it. |
5677 | Naïve direct realists hold that objects retain all of their properties when unperceived [Dancy,J] |
Full Idea: The naïve direct realist holds that unperceived objects are able to retain properties of all the types we perceive them as having, which includes not only a shape and a size, but also a colour, a taste and a smell. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 10.3) | |
A reaction: This I take to be a completely untenable view, if we are including the qualia of red, sweet or pungent among the properties. It seems uncontroversial that objects retain the capacity to cause redness etc. when they are unperceived. |
5678 | Scientific direct realism says we know some properties of objects directly [Dancy,J] |
Full Idea: The scientific direct realist accepts the directness of our perception of the world, but restricts his realism to a special group of properties, ..not including those which are dependent for their existence upon the existence of a perceiver. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 10.3) | |
A reaction: Dancy goes on to say that this distinction is a 'close relative' of Locke's primary/secondary distinction. Am I a direct realist or a representative realist about primary properties? Maybe the distinction dissolves as we unravel the true process. |
5681 | Maybe we are forced from direct into indirect realism by the need to explain perceptual error [Dancy,J] |
Full Idea: Direct realism is unlikely to be able to provide an explanation of perceptual error without collapsing into indirect realism. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 10.3) | |
A reaction: If there is an error, there must be two things which don't match: the perception, and the reality. This seems to me a powerful reason for preferring indirect or representative realism. I like the idea that we make mental 'models' (rather than inferences). |
5682 | Internal realism holds that we perceive physical objects via mental objects [Dancy,J] |
Full Idea: Indirect realism holds that in perception we are indirectly aware of the physical objects around us in virtue of a direct awareness of internal, non-physical objects. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 10.4) | |
A reaction: This may be a slightly prejudicial definition which invites insoluble questions about the ontological status of the internal 'objects'. It seems to me obvious that we create some sort of inner 'models' or constructions in the process of perception. |
5683 | Indirect realism depends on introspection, the time-lag, illusions, and neuroscience [Dancy,J, by PG] |
Full Idea: The four standard reasons for preferring indirect to direct realism are introspection of our mental processes, the time-lag argument, the argument from illusion, and the findings of neuroscience. | |
From: report of Jonathan Dancy (Intro to Contemporary Epistemology [1985], 10.4) by PG - Db (ideas) | |
A reaction: Ultimately one's views about realism depend on one's views of the mind/brain, and it is the last of the four reasons that sways me. We know enough about the complexity of the brain to accept that it represents reality, with no additional ontology. |
2778 | Phenomenalism includes possible experiences, but idealism only refers to actual experiences [Dancy,J] |
Full Idea: Phenomenalism talks about actual and possible experiences, whereas idealism confines itself to the actual experiences. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 9.5) |
5684 | Eliminative idealists say there are no objects; reductive idealists say objects exist as complex experiences [Dancy,J] |
Full Idea: The eliminativist idealist holds that there is no such thing as a material object; there is nothing but experience (idea, sensation). The reductive idealist holds that there are material objects, but they are nothing other than complexes of experience. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 10.6) | |
A reaction: Dancy says Berkeley was of the latter type. The distinction doesn't strike me as entirely clear. I can't make much sense of the words 'are' or 'exist' in the second theory. To say it is only experiences translates (to me) as 'doesn't exist'. |
2777 | Extreme solipsism only concerns current experience, but it might include past and future [Dancy,J] |
Full Idea: Extreme solipsism only considers present experiences, but more relaxed solipsism may include past and possible future experiences. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 9.5) |
2794 | Knowing that a cow is not a horse seems to be a synthetic a priori truth [Dancy,J] |
Full Idea: The fact that a cow is not a horse is a candidate for a priori synthetic truth. It doesn't seem to be analytic, because you can know what a cow is without knowing what a horse is. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 14.3) |
2780 | Perception is either direct realism, indirect realism, or phenomenalism [Dancy,J] |
Full Idea: There are three main families of theories of perception: direct realism, indirect realism, and phenomenalism. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 10.2) |
5679 | We can't grasp the separation of quality types, or what a primary-quality world would be like [Dancy,J] |
Full Idea: There is doubt about whether our experience of the world is such that we can conceive of the sort of separation of primary and secondary qualities which the scientific view calls for, and can understand what the world is like with no secondary qualities. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 10.3) | |
A reaction: Dancy attributes these doubts to Berkeley (e.g. Idea 3837). I think what is claimed here is false. Obviously we spend our whole lives immersed in secondary qualities, but separating the different aspects is precisely what scientists (and philosophers) do. |
5680 | For direct realists the secondary and primary qualities seem equally direct [Dancy,J] |
Full Idea: For a direct realist our awareness of colour and heat can hardly be of a different order from our awareness of shape and size. Both sorts of properties are presented with equal directness. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 10.3) | |
A reaction: This is a good objection to 'direct scientific realism', which claims direct apprehension of primary qualities alongside a totally relative view of secondary qualities. The best response seems to be to move to a representative view of primary properties. |
2782 | We can be looking at distant stars which no longer actually exist [Dancy,J] |
Full Idea: An object such as a distant star can have ceased to exist by the moment at which we are directly aware of it. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 10.2) |
2775 | It is not clear from the nature of sense data whether we should accept them as facts [Dancy,J] |
Full Idea: The question whether something which appears as datum should remain as accepted fact is one which is not even partially determined by its origin as datum. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 8.5) |
2784 | Appearances don't guarantee reality, unless the appearance is actually caused by the reality [Dancy,J] |
Full Idea: If I stare at a white wall with my brain wired to a virtual reality computer, and it generates a white wall, we wouldn't say I am seeing reality. It seems that the wall itself must in some way cause my perception of it. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 11.4) | |
A reaction: But suppose the computer generated in my mind an image of the wall which was actually in front of me? And suppose the computer got its image from the identical wall next door, not from mine? And it was only judged identical because the architect said so |
2785 | Perceptual beliefs may be directly caused, but generalisations can't be [Dancy,J] |
Full Idea: A perceptual belief that p can have as its main cause the fact that p. More general facts (all men are mortal; e=mc2) cannot be the main cause of my belief, even if they do function causally in some way. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 11.5) | |
A reaction: Note that the perceptual belief can be the "main" cause; it seems to me that most beliefs are caused by judgements, though I may normally accept beliefs which are directly caused by perception, if I have no reason to challenge them. |
2788 | If perception and memory are indirect, then two things stand between mind and reality [Dancy,J] |
Full Idea: If perception is indirect as well as memory, this means there are two direct objects of awareness between the remembering mind and the original object. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 12.2) |
2787 | Memories aren't directly about the past, because time-lags and illusions suggest representation [Dancy,J] |
Full Idea: Direct realism about memory believes the memory is the past. But the time-lag argument and various illusions are powerful here, suggesting indirect realism involving a memory image. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 12.2) |
2791 | Phenomenalism about memory denies the past, or reduces it to present experience [Dancy,J] |
Full Idea: Eliminative phenomenalism about memory holds that there is no such thing as the past, just certain present experiences; reductive phenomenalism holds that there is a past, but it is no more than a complex of those present experiences. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 12.4) |
2790 | I can remember plans about the future, and images aren't essential (2+3=5) [Dancy,J] |
Full Idea: Memory is not solely concerned with the past, let alone one's own past (I remember that I must be in London next week), and need not involve images (2+2=4). | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 12.3) | |
A reaction: I can hardly remember the future, so I presume I am remembering my past commitment to go to London, even if I visualise the future with me in London. The non-necessity of images seems right. I can remember the Mona Lisa without a precise image. |
2754 | Foundations are justified by non-beliefs, or circularly, or they need no justification [Dancy,J] |
Full Idea: Foundationalism can get rid of the regress argument with one of three types of belief: those justified by something other than beliefs, those which justify themselves, or those which need no justification. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 4.3) | |
A reaction: A nice clear trilemma, and none of them will do, which is why foundationalism is false. I vote for Davidson's view, that only a belief can justify another belief. |
2749 | For internalists we must actually know that the fact caused the belief [Dancy,J] |
Full Idea: The internalist would claim that even if the belief is caused by the true fact to which it refers, it is also necessary that the believer believes that this is how their belief arose, and not some other way. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 3.5) | |
A reaction: I'm converted to internalism. If the belief is externally supported in the right way, then it may well be a true belief, but knowledge needs critical faculties, and justifications which can be articulated. |
2770 | Internalists tend to favour coherent justification, but not the coherence theory of truth [Dancy,J] |
Full Idea: Internalists such as Keith Lehrer tend to suggest that we adopt a coherence theory of justification but reject the coherence theory of truth. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 8.3) | |
A reaction: I agree with Lehrer. Truth just isn't coherence, for all sorts of well known reasons (found in this database!). High coherence can be totally false. For justification, though, it is the best we have. |
2752 | Foundationalism requires inferential and non-inferential justification [Dancy,J] |
Full Idea: The core of any form of foundationalism is the view that there are two forms of justification - inferential and non-inferential - and that non-inferential justification must be possible to avoid a sceptical regress. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 4.1) | |
A reaction: The foundation may be non-inferential, but is it also non-evidential, or devoid of any support at all, apart from its own eloquent self? I can't buy that, I'm afraid. |
2771 | Foundationalists must accept not only the basic beliefs, but also rules of inference for further progress [Dancy,J] |
Full Idea: Foundationalists suppose we need not only basic beliefs, but also principles of inference to move to the more sophisticated superstructure. We may understand what justifies the basic beliefs, but what about the inference principles? | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 8.3) | |
A reaction: Very nice question. Of course, you can't justify everything, but each part of a system can be scrutinised in turn by the other parts (with scrutinising principles tested pragmatically). |
2756 | If basic beliefs can be false, falsehood in non-basic beliefs might by a symptom [Dancy,J] |
Full Idea: Falsehood in a non-basic belief would be a reason to doubt the basic beliefs which support it, once we have admitted that basic beliefs can be false. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 4.3) | |
A reaction: The yearning for foundations arises from the yearning for certainty. If one embraces the fallibilist view of knowledge, as I do, then there is little motivation for foundationalism. |
2753 | Beliefs can only be infallible by having almost no content [Dancy,J] |
Full Idea: Infallible beliefs must have vanishingly small content. No belief with enough content to support the superstructure in which we are really interested is going to be infallible. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 4.2) | |
A reaction: I see no reason why a foundationalist should not be a fallibilist, rather than insisting on the infallibility of their basic beliefs. I don't, though, see how basic beliefs can count as knowledge. |
2773 | Coherentism gives a possible justification of induction, and opposes scepticism [Dancy,J] |
Full Idea: Coherentists feel that their approach provides a possible justification for induction, and offers a general stance from which the sceptic can be defused, if not rebutted. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 8.3) | |
A reaction: These are two good reasons why I vote for coherentism (about justification, NOT about truth). Coherence is the main tool for leading us to the best explanation. |
2779 | Idealists must be coherentists, but coherentists needn't be idealists [Dancy,J] |
Full Idea: An idealist should perhaps be a coherentist, but there seems to be no reason why the coherentist should be an idealist; the link between the two is all one-way. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 9.5) | |
A reaction: I don't see why an idealist shouldn't be a rationalist foundationalist, with a private reality full of certainties founded on simple a priori truths. Personally I'm an empiricist coherentist, this week. |
2786 | For coherentists justification and truth are not radically different things [Dancy,J] |
Full Idea: The coherentist idea is that justification and truth are not properties of radically different types. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 11.6) | |
A reaction: Oh. And I thought I was a coherentist. It take it that keeping coherence for foundations separate from coherence as truth is absolutely basic. The latter is nonsense. |
2767 | If it is empirical propositions which have to be coherent, this eliminates coherent fiction [Dancy,J] |
Full Idea: If coherence is grounded in, and is trying to make sense of, a set of empirical propositions, this will eliminate some of the more fanciful sets of coherent propositions, such as the complete Sherlock Holmes stories. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 8.2) | |
A reaction: Interestingly, I suspect that embracing the coherence view of justification drives one back to empiricisim (pace Bonjour), because that is the most authoritative part of the pattern of beliefs. |
2776 | Externalism could even make belief unnecessary (e.g. in animals) [Dancy,J] |
Full Idea: One reading of the externalist approach may lead to a rejection of the belief condition for knowledge (in animals, perhaps). | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 9.3) | |
A reaction: At this point the concept of 'knowledge' seems to disperse into the mist. This pushes me to a 'setting the bar high' view of knowledge. Otherwise plants will have it, and we don't want that. |
2746 | How can a causal theory of justification show that all men die? [Dancy,J] |
Full Idea: How can a causal analysis of justification show that I know that all men die? | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 2.3) | |
A reaction: I presume he means that inductive generalisations can't be purely causal. The claim that men are immortal is absurd because it is 'unconnected' to what actually happens. |
2747 | Causal theories don't allow for errors in justification [Dancy,J] |
Full Idea: Causal accounts of justification do not allow for the possibility that a false belief may still be justified. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 2.4) | |
A reaction: Good. If you switch to what you only think is the cause of your belief, you have gone internalist and ruined the party. You can't deny that a falsehood can be justified, or justification is vacuous. |
2772 | Coherentism moves us towards a more social, shared view of knowledge [Dancy,J] |
Full Idea: An advantage of coherentism is that it directs attention away from the individual's struggle to achieve knowledge (the classical conception), and points to knowledge as a social phenomenon, shared, and increased by means of sharing. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 8.3) | |
A reaction: This is exactly the view which I now embrace. Internal coherence is the basis, but that spills out into the community, and into books, and into the relativity of social acceptance. |
2743 | What is the point of arguing against knowledge, if being right undermines your own argument? [Dancy,J] |
Full Idea: What is the point of arguing that justified belief is impossible, for if you were right there could be no reasons for your conclusion? | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 1.3) |
15207 | We want illuminating theories, rather than coherent theories [Le Poidevin] |
Full Idea: Don't ask, which theory is more coherent? Ask, which theory is more illuminating? | |
From: Robin Le Poidevin (Past, Present and Future of Debate about Tense [1998], 5) |
2751 | Probabilities can only be assessed relative to some evidence [Dancy,J] |
Full Idea: In Probability Calculus probability is only assessed relative to some evidence. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 4.1) |
22926 | In addition to causal explanations, they can also be inferential, or definitional, or purposive [Le Poidevin] |
Full Idea: Not all explanations are causal. We can explain some things by showing what follows logically from what, or what is required by the definition of a term, or in terms of purpose. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 05 'Limits') | |
A reaction: Would these fully qualify as 'explanations'? You don't explain the sea by saying that 'wet' is part of its definition. |
2757 | The argument from analogy rests on one instance alone [Dancy,J] |
Full Idea: As an inductive argument Mill's argument from analogy (other people have inputs and outputs like mine, so the intermediate explanation must be the same) is weak because it is based on a single instance. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 5.3) | |
A reaction: The argument may be 'weak' as a piece of pure logic, but when faced with a strange situation, one's own case seems like crucial evidence, like a single eye-witness to a crime. |
2758 | You can't separate mind and behaviour, as the analogy argument attempts [Dancy,J] |
Full Idea: The analogy argument makes the error (as Wittgenstein showed) of assuming that mind is quite separate from behaviour, and yet I can understand what it is for others to have mental states, which is contradictory. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 5.3) | |
A reaction: It has always seemed to me that Wittgenstein is excessively behaviourist, and he always seems to be flirting with eliminative views of mind, so he was never bothered about other minds. Minds aren't separate from behaviour, but they are distinct. |
2744 | Verificationism (the 'verification principle') is an earlier form of anti-realism [Dancy,J] |
Full Idea: Verificationism (the 'verification principle') is an earlier form of anti-realism. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 1.note) | |
A reaction: If the one true God announced that there is a real world out there, I might take that as a verification of the fact. |
2760 | Logical positivism implies foundationalism, by dividing weak from strong verifications [Dancy,J] |
Full Idea: The foundationalist claim that there are inferential and non-inferential justifications is mirrored by the claim of logical empiricism (the verification principle) that all significant statements are either strongly or weakly verifiable. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 6.2) | |
A reaction: I take it to be characteristic of both to divide the support for something into two types, one of which is basic, and the other built up on the basics. The first step is to decide what is basic. |
2761 | If the meanings of sentences depend on other sentences, how did we learn language? [Dancy,J] |
Full Idea: It is clearly possible to learn a language from scratch, because we have all done it, but if holism is true and the meaning of each sentence depends on the meanings of others, how did we do it? | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 7.2) | |
A reaction: The question of 'how did it ever get started?' actually seems to block almost every explanation of everything that ever happens. How do I begin to move my hand? |
22932 | We don't just describe a time as 'now' from a private viewpoint, but as a fact about the world [Le Poidevin] |
Full Idea: In describing a time as 'now' one is not merely describing the world from one's own point of view, but describing the world as it is. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 08 'Mystery') | |
A reaction: If we accept this view (which implies absolute time, and the A-series view), then 'now' is not an indexical, in the way that 'I' and 'here' are indexicals. |
2763 | There is an indeterminacy in juggling apparent meanings against probable beliefs [Dancy,J] |
Full Idea: Indeterminacy stems from an interplay between belief and meaning, as with a man who tells you he keeps two rhinoceri in the fridge and squeezes the juice of one for a drink each morning. | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 7.4) | |
A reaction: I don't understand why an 'interplay' is called an 'indeterminacy'. Typical philosophers. Close examination will usually show whether the change is just in belief, or just in meaning, or in both. |
2762 | Charity makes native beliefs largely true, and Humanity makes them similar to ours [Dancy,J] |
Full Idea: One criterion for successful translation is that it show native beliefs to be largely true (Principle of Charity), and another is that it imputes to natives beliefs we can make sense of them having (Principle of Humanity). | |
From: Jonathan Dancy (Intro to Contemporary Epistemology [1985], 7.4) | |
A reaction: The trouble with such guidelines is that they always have to be 'all things being equal'. Sometimes the natives are really idiotic, and sometimes their attitudes seem quite inhuman. |
7260 | If there are intuited moral facts, why should we care about them? [Dancy,J] |
Full Idea: Critics asked (of intuitionism) why, if moral facts are as the intuitionists say, we should care about them at all. | |
From: Jonathan Dancy (Intuitionism [1991]) | |
A reaction: It is a good question, as we don't care much about other a priori truths, such as the square root of 169. |
7261 | Internalists say that moral intuitions are motivating; externalist say a desire is also needed [Dancy,J] |
Full Idea: There is an internalist view of intuitionism, saying that to accept that one's action is wrong is itself to be motivated not to do it. Externalists (like Ross) say that moral judgements need the help of an independent desire to motivate us. | |
From: Jonathan Dancy (Intuitionism [1991]) | |
A reaction: The internalists would be closer to Kant or Plato (for whom reason or pure ideas motivate), while externalist would favour Hume's belief/desire account of human actions. I like Kant and Plato, but Hume is more plausible. Dancy disagrees (Idea 7262). |
7262 | Obviously judging an action as wrong gives us a reason not to do it [Dancy,J] |
Full Idea: It is ludicrous to say that we might accept an action is outrageously wrong and still think of this as not in itself giving us good reason to hold back. | |
From: Jonathan Dancy (Intuitionism [1991]) | |
A reaction: If we think of some dreadful man-made famine in a remote continent, our judgement may well give a reason to act, but apathy usually intervenes. We are discussing a purely theoretical motive on the one hand, and an actual motivator on the other. |
7265 | Moral facts are not perceived facts, but perceived reasons for judgements [Dancy,J] |
Full Idea: I intend to suggest that moral facts are best thought of not as facts perceived but as reasons recognised in the exercise of practical moral judgement. | |
From: Jonathan Dancy (Intuitionism [1991]) | |
A reaction: I'm not convinced by this modified version. Why should the fact that someone is in pain be, in itself, a reason to prevent it? There are different cultural traditions for response to the pain of others. We are the squeamish tradition. |
18681 | The base for values has grounds, catalysts and intensifiers [Dancy,J, by Orsi] |
Full Idea: Dancy distinguishes three parts of the supervenience base of values: 1) those which ground the value ('resultance base'); 2) those which enable the ground to make something good ('enabling conditions'); 3) those which intensify or diminish value. | |
From: report of Jonathan Dancy (Ethics without Principles [2004], p. 170-181) by Francesco Orsi - Value Theory 5.2 | |
A reaction: I really like and admire this. Dancy has focused on what really matters about values (and hence about the whole of ethics), and begun the work of getting a bit of clarity and increased understanding. |
6866 | It is disturbing if we become unreal when we die, but if time is unreal, then we remain real after death [Le Poidevin] |
Full Idea: For the A-theorists called 'presentists' the past is as unreal as the future, and reality leaves us behind once we die, which is disturbing; but B-theorists, who see time as unreal, say we are just as real after our deaths as we were beforehand. | |
From: Robin Le Poidevin (Interview with Baggini and Stangroom [2001], p.174) | |
A reaction: See Idea 6865 for A and B theories. I wonder if this problem is only superficially 'disturbing'. Becoming unreal may sound more drastic than becoming dead, but they both sound pretty terminal to me. |
15190 | Evil can't be an illusion, because then the illusion that there is evil would be evil [Le Poidevin] |
Full Idea: The view that evil is an illusion is self-refuting: that is, if there is no evil, the illusion that there is evil is certainly evil. | |
From: Robin Le Poidevin (Intro to 'Questions of Time and Tense' [1998], 2) | |
A reaction: [The idea comes from McTaggart, and Le Poidevin is quoting Dummett on it] |
6867 | Existentialism focuses on freedom and self-making, and insertion into the world [Le Poidevin] |
Full Idea: I take existentialism to be the focus on the freedom and self-making of the human being, and his or her insertion into the world. | |
From: Robin Le Poidevin (Interview with Baggini and Stangroom [2001], p.222) | |
A reaction: I take 'self-making' to be the key here. If neuroscientists somehow 'proved' that there was no free will, I don't see that making any difference to existentialism. 'Insertion' seems odd, unless it refers to growing up. |
22927 | The logical properties of causation are asymmetry, transitivity and irreflexivity [Le Poidevin] |
Full Idea: The usual logical properties of the causal relation are asymmetry (one-way), transitivity and irreflexivity (no self-causing). | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 05 'Great') | |
A reaction: If two balls rebound off each other, that is only asymmetric if we split the action into two parts, which may be a fiction. Does a bomb cause its own destruction? |
22922 | We can identify unoccupied points in space, so they must exist [Le Poidevin] |
Full Idea: If the midpoint on a line between the chair and the window is five feet from the end of the bookcase. This can be true, but if no object occupies that midpoint, then unoccupied points exist | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 03 'Lessons') | |
A reaction: We can also locate perfect circles (running through fairy rings, or the rings of Saturn), so they must also exist. But then we can also locate the Loch Ness monster. Hm. |
22924 | If spatial points exist, then they must be stationary, by definition [Le Poidevin] |
Full Idea: If there are such things as points in space, independently of any other object, then these points are by definition stationary (since to be stationary is to stay in the same place, and a point is a place). | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 03 'Search') | |
A reaction: So what happens if the whole universe moves ten metres to the left? Is the universe defined by the objects in it (which vary), or by the space that contains them? Why can't a location move, even if that is by definition undetectable? |
22923 | Absolute space explains actual and potential positions, and geometrical truths [Le Poidevin] |
Full Idea: Absolutists say space plays a number of roles. It is what we refer to when we talk of positions. It makes other things possible (by moving into unoccupied positions). And it explains geometrical truths. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 03 'Redundancy') | |
A reaction: I am persuaded by these, and am happy to treat space (and time) as a primitive of metaphysics. |
22928 | For relationists moving an object beyond the edge of space creates new space [Le Poidevin] |
Full Idea: For the relationist, if Archytas goes to the edge of space and extends his arm, he is creating a new spatial relation between objects, and thus extending space, which is, after all, just the collection of thos relations. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 05 'beyond') | |
A reaction: The obvious point is what are you moving your arm into? And how can some movements be in space, while others create new space? It's a bad theory. |
22931 | We distinguish time from space, because it passes, and it has a unique present moment [Le Poidevin] |
Full Idea: The most characteristic features of time, which distinguish it from space, are the fact that time passes, and the fact that the present is in some sense unique | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 08 'Mystery') | |
A reaction: The B-series view tries to avoid passing time and present moments. I suspect that modern proponents of the B-series mainly want to unifying their view of time with Einstein's, to give us a scientific space-time. |
22917 | Since nothing occurs in a temporal vacuum, there is no way to measure its length [Le Poidevin] |
Full Idea: Since, by definition, nothing happens in a temporal vacuum, there is no possible means of determining its length. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 02 'without change') | |
A reaction: This is offered a part of a dubious proof that a temporal vacuum is impossible. I like Shoemaker's three worlds thought experiment, which tests this idea to the limit. |
22921 | Temporal vacuums would be unexperienced, unmeasured, and unending [Le Poidevin] |
Full Idea: Three arguments that a temporal vacuum is impossible: we can't experience it, we can't measure it, and it would have no reason to ever terminate. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 03 'Lessons') | |
A reaction: [summarised] The first two reasons are unimpressive. The interiors of black holes are off limits for us. The arrival of time into a timeless situation may actually have occurred, but be beyond our understanding. |
15195 | If the future is not real, we don't seem to have any obligation to future individuals [Le Poidevin] |
Full Idea: If the future is unreal, future individuals are ontologically problematic. Any apparent obligations towards them cannot, it seems, have an object. | |
From: Robin Le Poidevin (Intro to 'Questions of Time and Tense' [1998], 5) | |
A reaction: I certainly 'feel' obligations to the future, but I am not sure whether I 'have' them. How far into the future do the extend? Should I care if homo sapiens is replaced by a different dominant species? |
15188 | If things don't persist through time, then change makes no sense [Le Poidevin] |
Full Idea: It would appear that any denial of the existence of continuants entails a denial of change. | |
From: Robin Le Poidevin (Intro to 'Questions of Time and Tense' [1998], 1) | |
A reaction: [He cites Lowe for this view] Presumably we don't just accept change at face value, in that case. Indeed, views about temporal parts or time-worms give a different account of change (though perhaps a less convincing one). |
22934 | Time can't speed up or slow down, so it doesn't seem to be a 'process' [Le Poidevin] |
Full Idea: Processes can speed up or slow down, but surely the passage of time is not something that can speed up or slow down? | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 08 'Mystery') | |
A reaction: If something is a process we can ask 'process of what?', but the only answer seems to be that it's a process of processing. So it is that which makes processes possible (and so, as I keep saying) it is best viewed as a primitive. |
15191 | At the very least, minds themselves seem to be tensed [Le Poidevin] |
Full Idea: A worry haunts the denial of tense: if tense is just mind-dependent, then minds at least themselves must be tensed. | |
From: Robin Le Poidevin (Intro to 'Questions of Time and Tense' [1998], 2) |
15197 | Fiction seems to lack a tensed perspective, and offers an example of tenseless language [Le Poidevin] |
Full Idea: If we cannot coherently adopt a tensed perspective on events within fiction, then fictional discourse seems to provide an example of a tenseless language of before and after which is quite independent of the language of tense. | |
From: Robin Le Poidevin (Intro to 'Questions of Time and Tense' [1998], 7) |
15206 | It is the view of the future that really decides between tensed and tenseless views of time [Le Poidevin] |
Full Idea: It is crucially one's view of the status of the future that makes one a tensed or a tenseless theorist. | |
From: Robin Le Poidevin (Past, Present and Future of Debate about Tense [1998], 5) | |
A reaction: If you believe in the reality of the future, you are an eternalist and like the B-series. If you deny the existence of the future, you must opt for Presentism or the Growing Block (depending on the status of the past). |
15198 | In the B-series, time-positions are unchanging; in the A-series they change (from future to present to past) [Le Poidevin] |
Full Idea: The crucial distinction is that in the B-series positions in time are unchanging. Positions in the A-series, in contrast, do change: what is now present was once future and will be past. | |
From: Robin Le Poidevin (Past, Present and Future of Debate about Tense [1998], 1 (a)) | |
A reaction: So does A-series time consist of a property which things gain and then lose, or a location which things enter and then leave? Neither analogy seems to throw much light. |
15189 | Things which have ceased change their A-series position; things that persist change their B-series position [Le Poidevin] |
Full Idea: Events and objects that have ceased to exist change their A-series position (by becoming increasingly past), but persisting objects, in contrast, change their present B-series position. | |
From: Robin Le Poidevin (Intro to 'Questions of Time and Tense' [1998], 1 n2) | |
A reaction: The second half seems to imply a 'moving spotlight' of the present. This distinction is important, as it creates problems for all theories. The asymmetry seems weird. |
6865 | A-theory says past, present, future and flow exist; B-theory says this just reports our perspective [Le Poidevin] |
Full Idea: The A-theory regards our intuitive distinction of time into past, present and future as objective, and takes seriously the idea that time flows; the B-theory says this just reflects our perspective, like the spatial distinction between here and there. | |
From: Robin Le Poidevin (Interview with Baggini and Stangroom [2001], p.174) | |
A reaction: The distinction comes from McTaggart. Physics seems to be built on an objective view of time, and yet Einstein makes time relative. What possible evidence could decide between the two theories? |
15187 | It is claimed that the tense view entails the unreality of both future and past [Le Poidevin] |
Full Idea: It has been argued that the tensed view of time is actually committed to the unreality, not just of the future, but of the past also. | |
From: Robin Le Poidevin (Intro to 'Questions of Time and Tense' [1998], Intro) | |
A reaction: There seem to be strong and weak version here, since if you are committed to tenses, you are presumably committed to the possibility of truths about the past and future. The strong version (denying past and future) seems to make tenses pointless. |
15205 | Tensed theorists typically try to reduce the tenseless to the tensed [Le Poidevin] |
Full Idea: Tensed theorists typically seek to reduce facts about tenseless relations to tensed facts. | |
From: Robin Le Poidevin (Past, Present and Future of Debate about Tense [1998], 4 (b)) | |
A reaction: This presumably involves denial of tenseless truths like '2+2=4', which might become '2+2 is always 4'. I can't see an objection to that. Tooley 1997 is cited as an exception to this idea. |
15192 | We share a common now, but not a common here [Le Poidevin] |
Full Idea: We appear to share a common now, but not a common here. | |
From: Robin Le Poidevin (Intro to 'Questions of Time and Tense' [1998], 2) | |
A reaction: Personally I take this to be quite a strong argument against the simplistic view that there is just something called 'spacetime', with no distinction of dimensions. |
15193 | The new tenseless theory offers indexical truth-conditions, instead of a reductive analysis [Le Poidevin] |
Full Idea: The new tenseless theory has given up Russell's attempt to reduce tensed statements (in terms of 'simultaneous with'), and instead give tenseless truth-conditions (in terms of indexicals). | |
From: Robin Le Poidevin (Intro to 'Questions of Time and Tense' [1998], 3) | |
A reaction: [compressed] |
22938 | To say that the past causes the present needs them both to be equally real [Le Poidevin] |
Full Idea: The causal connection between the past and the present seems to require that the past is as real as the present. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 08 'First') | |
A reaction: Cause and effect need to conjoin in space, but their subsequent separation doesn't seem to be a problem. The idea that causes and their effects must be eternally compresent is an absurdity. |
22939 | The B-series doesn't seem to allow change [Le Poidevin] |
Full Idea: How can anything change in a B-universe? | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 08 'Second') | |
A reaction: It seems that change needs time to move on. A timeless series of varying states doesn't seem to be the same thing as change. B-seriesers must be tempted to deny change, and yet nothing seems more obvious to us than change. |
22940 | If the B-universe is eternal, why am I trapped in a changing moment of it? [Le Poidevin] |
Full Idea: What in the B-universe determines my temporal perspective? I can move around in space at will, but I have no choice over where I am in time. What time I am is something that changes, and again I have no control over that | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 08 'Second') | |
A reaction: The B-series always has to be asserted from the point of view of eternity (e.g. by Einstein). Yet an omniscient mind would still see each of us trapped in our transient moments, so that is part of eternal reality. |
22953 | Time's arrow is not causal if there is no temporal gap between cause and effect [Le Poidevin] |
Full Idea: If there is no temporal gap between cause and effect, then the causal analysis of time's arrow is doomed. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 12 'simultaneous') | |
A reaction: A number of recent commentators have rejected the sharp distinction between cause and effect, seeing it as a unified process (which takes time to occur). |
22947 | An ordered series can be undirected, but time favours moving from earlier to later [Le Poidevin] |
Full Idea: A series can be ordered without being directed (such as the series of integers), …but the passage of time indicates a preferred direction, moving from earlier to later events, and never the other way around. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 12 'Hidden') | |
A reaction: I wonder what 'preferred' means here? It is not just memory versus anticipation. The saddest words in the English language are 'Too late!'. It is absurd to say that being too late is an illusion. |
22952 | If time's arrow is causal, how can there be non-simultaneous events that are causally unconnected? [Le Poidevin] |
Full Idea: An objection to the Causal analysis of time's arrow is that it is surely possible for non-simultaneous events to be causally unconnected. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 12 'Seeds') | |
A reaction: I suppose the events could be linked causally by intermediaries. If reality is a vast causal nexus, everything leads to everything else, in some remote way. It's still a good objections, though. |
22951 | If time's arrow is psychological then different minds can impose different orders on events [Le Poidevin] |
Full Idea: If the Psychological account of time's arrow is correct …then there is nothing to prevent different minds from imposing different orders on the world. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 12 'The mind's') | |
A reaction: All we need is for two people to disagree about the order of some past events. The idea that we are psychologically creating time's arrow when everyone feels they are its victims strikes me as a particularly silly theory. |
22948 | There are Thermodynamic, Psychological and Causal arrows of time [Le Poidevin] |
Full Idea: The three most significant arrows of time are the Thermodynamic (the direction from order to disorder), the Psychological (from perceptions of events to memories), and the Causal (from cause to effect). | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 12 'Three') | |
A reaction: It would be nice if one of these explained the other two. Le Poidevin rejects the Psychological arrow, and seems to favour the Causal. Since I favour taking time as a primitive, I'm inclined to think that the arrow is included in the deal. |
22949 | Presumably if time's arrow is thermodynamic then time ends when entropy is complete [Le Poidevin] |
Full Idea: One consequence of the Thermodynamic analysis of time's arrow is that a universe in which things are as disordered as they could be would exhibit no direction of time at all, because there would be no more significant changes in entropy. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 12 'Three') | |
A reaction: And presumably time would gradually fizzle out, rather than ending abruptly. If entropy then went into reverse, there would be no time interval between the end and the new beginning. Entropy can vary locally, so it has to be universal. |
22950 | If time is thermodynamic then entropy is necessary - but the theory says it is probable [Le Poidevin] |
Full Idea: The Second Law of Thermodynamics says it is overwhelmingly probable that entropy will increase. This leaves the door open for occasional isolated instances of decrease. But the thermodynamic arrow makes the increase a necessity. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 12 'Three') | |
A reaction: Le Poidevin sees this as a clincher against the thermodynamic explanation of the arrow. I'm now sure how the Second Law can even be stated without explicit or implicit reference to time. |
22943 | Instantaneous motion is an intrinsic disposition to be elsewhere [Le Poidevin] |
Full Idea: Being in motion at a particular time can be an intrinsic property of an object, as a disposition to be elsewhere than the place it is. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 09 'in present') | |
A reaction: This needs an ontology which includes unrealised dispositions. People trapped in boring meetings have a disposition to be elsewhere, but they are stuck. I think 'power' is a better word here than 'disposition'. The disposition isn't just for 'elsewhere'. |
22945 | The dynamic view of motion says it is primitive, and not reducible to objects, properties and times [Le Poidevin] |
Full Idea: According to the dynamic account of motion, an object's being in motion is a primitive event, not further analysable in terms of objects, properties and times. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 09 'Zeno') | |
A reaction: [The rival view is 'static'] Physics suggests that motion may be indefinable, but acceleration can be given a reductive account. If time and space are taken as primitive (which seems sensible to me), then making motion also primitive is a bit greedy. |
22937 | If the present could have diverse pasts, then past truths can't have present truthmakers [Le Poidevin] |
Full Idea: If any number of pasts are compatible with the present state of affairs, and it is only the present state of affairs which can make true or false statements about the past, then no statement about the past is either true or false. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 08 'First') | |
A reaction: He suggests an explosion which could have had innumerable different causes. The explosion could have had different origins, but not sure that the whole of present reality could. Presentists certainly have problems with truthmakers for the past. |
22925 | The present is the past/future boundary, so the first moment of time was not present [Le Poidevin] |
Full Idea: The present is the boundary between past and future, therefore if there was a first moment of time, it could not have been present - because there can be no past at the beginning of time. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 05 'Limits') | |
A reaction: How about at the start of a race the athletes cannot be running. How about 'all moments of time have preceding moments - apart from the first moment'? |
22944 | The primitive parts of time are intervals, not instants [Le Poidevin] |
Full Idea: Intervals of time can be viewed as primitive, and not decomposable into a series of instants. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 09 'in present') | |
A reaction: Given that instants are nothing, and intervals are something, the latter are clearly the better candidates to be the parts of time. Is there a smallest interval? |
22942 | If time is infinitely divisible, then the present must be infinitely short [Le Poidevin] |
Full Idea: Assuming time to be infinitely divisible, the present can have no duration at all, for if it did, we could divide it into parts, and some parts would be earlier than others. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 09 'in present') | |
A reaction: I quite like Aristotle's view that things only have parts when you actually divide them. In modern physics fields don't seem to be infinitely divisible. It's a puzzle, though, innit? |
22946 | The multiverse is distinct time-series, as well as spaces [Le Poidevin] |
Full Idea: The multiverse is not just a collection of distinct spaces, it is also a collection of distinct time-series. | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 11 'Objections') | |
A reaction: This boggles the imagination even more than distinct spatial universes. |
15196 | God being inside or outside of time both raise a group of difficult problems [Le Poidevin] |
Full Idea: Is God within, or outside time? How can God causally interact with the universe? How are 'all times present to God'? If the future is not real, can God not know the future? How would he then be omniscient? Does God know the truth of tensed assertions? | |
From: Robin Le Poidevin (Intro to 'Questions of Time and Tense' [1998], 6) | |
A reaction: This lot constitutes one of the main reasons why I cannot believe in God. In brief, the concept is incoherent. The metaphysical convolutions needed to reconcile these problems smack of the absurd aspects of medieval theology. |
22941 | How could a timeless God know what time it is? So could God be both timeless and omniscient? [Le Poidevin] |
Full Idea: Could a timeless being now know what the time was? If so, does this show that there must be something wrong with the idea of God as both timeless and omniscient? | |
From: Robin Le Poidevin (Travels in Four Dimensions [2003], 09 'Questions') | |
A reaction: This is a potential contradiction between the perfections of a supreme God which I had not noticed before. Leibniz tried to refute such objections, but not very successfully, I think. |