Combining Philosophers

Ideas for Carl Ginet, J Pollock / J Cruz and Michael Martin

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3 ideas

12. Knowledge Sources / B. Perception / 1. Perception
Perception causes beliefs in us, without inference or justification [Pollock/Cruz]
     Full Idea: Perception is a causal process that inputs beliefs into our doxastic system without their being inferred from or justified on the basis of other beliefs we already have.
     From: J Pollock / J Cruz (Contemporary theories of Knowledge (2nd) [1999], §3.2.3)
     A reaction: This topic is much discussed (e.g. by MacDowell). I don't see how something is going to qualify as a 'belief' if it doesn't involve concepts and propositions. The point that we are caused to have many of our beliefs (rather than judging) seems right.
An error theory of perception says our experience is not as it seems to be [Martin,M]
     Full Idea: You can end up with an error theory of perception, which says our experience is not as it seems to be, as bizarre as that might be.
     From: Michael Martin (Interview with Baggini and Stangroom [2001], p.140)
     A reaction: This is because of the clash between subjective and objective aspects of perception. It is an enticing proposal, just the sort of thing I pay philosophers to come up with. Given oddities like blindsight, I think it should be taken seriously.
12. Knowledge Sources / B. Perception / 6. Inference in Perception
Sense evidence is not beliefs, because they are about objective properties, not about appearances [Pollock/Cruz]
     Full Idea: We think it is a mistake to suppose that the evidence of our senses comes to us in the form of beliefs; in perception, the beliefs we form are almost invariably about the objective properties of physical objects - not about how they appear to us.
     From: J Pollock / J Cruz (Contemporary theories of Knowledge (2nd) [1999], §2.5.5)
     A reaction: The tricky word here is 'evidence'. At what point in the process of perception does something begin to count as evidence? It must at least involve concepts (and maybe even propositions) if it is going to be thought about in that way.