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13. Knowledge Criteria / A. Justification Problems / 3. Internal or External / c. Disjunctivism

[justification has separate internal and external components]

3 ideas
Externalists want to understand knowledge, Internalists want to understand justification [Foley]
     Full Idea: Externalists are principally interested in understanding what knowledge is, ..while internalists, by contrast, are principally interested in explicating a sense of justification ..from one's own perspective.
     From: Richard Foley (Justified Belief as Responsible Belief [2005], p.314)
     A reaction: I find this very helpful, since I have a strong bias towards internalism (with a social dimension), and I see now that it is because I am more interested in what a (good) justification is than what some entity in reality called 'knowledge' consists of.
Disjunctivism says perceptual justification must be both factual and known by the agent [Pritchard,D]
     Full Idea: Slogan for disjunctivism: perceptual knowledge is paradigmatically constituted by a true belief whose epistemic support is both factive (i.e. it entails the truth of the propositions believed) and reflectively accessible to the agent.
     From: Duncan Pritchard (Epistemological Disjunctivism [2012], Intro)
     A reaction: I'm not a fan of externalism, but it could be that the factive bit achieves the knowledge, and then being able to use and answer for that knowledge may just be a bonus, and not an essential ingredient.
Metaphysical disjunctivism says normal perceptions and hallucinations are different experiences [Pritchard,D]
     Full Idea: Metaphysical disjunctivists hold that veridical perceptual experiences are not essentially the same as the experiences involved in corresponding cases involving illusion and (especially) hallucination.
     From: Duncan Pritchard (Epistemological Disjunctivism [2012], 1.§4)
     A reaction: Metaphysical disjunctivism concerns what the experiences are; epistemological justification concerns the criteria of justification. I think. I wish Pritchard would spell things out more clearly. Indeed, I wish all philosophers would.