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13. Knowledge Criteria / C. External Justification / 6. Contextual Justification / b. Invariantism

[denial that standards of knowledge vary with context]

10 ideas
The meaning of 'know' does not change from courtroom to living room [Unger]
     Full Idea: There is no reason to suppose that the meaning of 'know' changes from the courtroom to the living room and back again; no more than for supposing that 'vacuum' changes from the laboratory to the cannery.
     From: Peter Unger (Ignorance: a Case for Scepticism [1975], 2.1)
     A reaction: I disagree. Lots of words change their meaning (or reference) according to context. Flat, fast, tall, clever. She 'knows a lot' certainly requires a context. The bar of justification goes up and down, and 'knowledge' changes accordingly.
How could 'S knows he has hands' not have a fixed content? [Bach]
     Full Idea: How can it be that a sentence like 'George knows that he has hands', even with time and references fixed, does not have a fixed propositional content?
     From: Kent Bach (The Emperor's New 'Knows' [2005], I)
     A reaction: The appeal is to G.E. Moore's common sense view of immediate knowledge (Idea 6349). The reply is simply that the word 'knows' shifts its meaning, having high standards in sceptical philosophy classes, and low standards on the street.
If contextualism is right, knowledge sentences are baffling out of their context [Bach]
     Full Idea: Contextualism seems to predict that if you encounter a knowledge attribution out of context you won't be in a position to grasp which proposition the sentence expresses.
     From: Kent Bach (The Emperor's New 'Knows' [2005], I)
     A reaction: It is only the word 'knows' which is at issue in the sentence. If someone is said to 'know' about the world of the fairies, we might well be puzzled as to what proposition was being expressed. Is the word 'flat' baffling out of context?
Sceptics aren't changing the meaning of 'know', but claiming knowing is tougher than we think [Bach]
     Full Idea: When a sceptic brings up far-fetched possibilities and argues that we can't rule them out, he is not raising the standard for the word 'know'. He is showing it is tougher than we realise for a belief to qualify as normal knowledge at all.
     From: Kent Bach (The Emperor's New 'Knows' [2005], III)
     A reaction: [Bach cites Richard Feldman for this idea] I think that what happens in the contextual account is that 'true', 'belief' and 'know' retain their standard meaning, and it is 'justified' which shifts. 'I am fully justified' can have VERY different meanings!
There aren't invariant high standards for knowledge, because even those can be raised [Cohen,S]
     Full Idea: The problem for invariantism is that competent speakers, under sceptical pressure, tend to deny that we know even the most conspicuous facts of perception, the clearest memories etc.
     From: Stewart Cohen (Contextualism Defended [2005], p.58)
     A reaction: This is aimed at Idea 12892. This seems to me a strong response to the rather weak invariantist case (that there is 'really and truly' only one invariant standard for knowledge). Full strength scepticism about everything demolishes all knowledge.
If contextualism is about knowledge attribution, rather than knowledge, then it is philosophy of language [DeRose]
     Full Idea: Maybe contextualism isn't a theory about knowledge at all, but about knowledge attributions. As such, it is not a piece of epistemology at all, but of philosophy of language.
     From: Keith DeRose (The Case for Contextualism [2009], 1.7)
     A reaction: DeRose takes this view to be wrong. At the very least this will have to include self-attributions, by the supposed knower, because I might say 'I know that p', meaning 'but only in this rather low-standard context'.
Maybe low knowledge standards are loose talk; people will deny that it is 'really and truly' knowledge [Conee]
     Full Idea: Maybe variable knowledge ascriptions are just loose talk. This is shown when we ask whether weakly supported knowledge is 'really' or 'truly' or 'really and truly' known. Fluent speakers have a strong inclination to doubt or deny that it is.
     From: Earl Conee (Contextualism Contested (and reply) [2005], 'Loose')
     A reaction: [bit compressed] Conee is suggesting the people are tacitly invariantist about knowledge (they have a fixed standard). But it may be that someone who asks 'do you really and truly know?' is raising the contextual standard. E.g. a barrister.
Maybe knowledge has fixed standards (high, but attainable), although people apply contextual standards [Conee]
     Full Idea: It may be that all 'knowledge' attributions have the same truth conditions, but people apply contextually varying standards. The most plausible standard for truth is very high, but not unreachably high.
     From: Earl Conee (Contextualism Contested (and reply) [2005], 'Loose')
     A reaction: This is the 'invariantist' alternative to contextualism about knowledge. Is it a standard 'for truth'? Either it is or it isn't true, so there isn't a standard. I take the standard to concern the justification.
That standards vary with context doesn't imply different truth-conditions for judgements [Conee]
     Full Idea: The fact that different standards are routinely applied in making an evaluative judgement does not imply the correctness of semantic contextualism about the contents of judgements. ..We can't infer different truth conditions from differing standards.
     From: Earl Conee (Contextualism Contested [2005], p.51)
     A reaction: This is the basic objection to contextualism from the 'invariantist' camp, which says there are facts about good judgement and justification, despite contextual shifts. My sympathies are with the contextualists (on this one).
Maybe there is only one context (the 'really and truly' one) for serious discussions of knowledge [Conee]
     Full Idea: Maybe every issue about knowledge (Gettier problem, scientific knowledge, justification, scepticism) has been discussed solely in the single 'really and truly' context.
     From: Earl Conee (Contextualism Contested [2005], p.53)
     A reaction: This seems not to be true, if we contrast Descartes' desire for total certainty with Peirce's fallibilism. It seems to me that modern philosophy has deliberately relaxed the standard, in order to make some sort of knowledge possible. Cf. Idea 12894.