Introspective knowledge by acquaintance

Introspective knowledge by acquaintance is (roughly) knowledge we acquire just in virtue of being directly aware of our experiences. Differently from most contemporary acquaintance theorists, and similarly to Bertrand Russell, I think that knowledge by acquaintance is a sui generis kind of knowledge: it cannot be reduced to propositional knowledge. In this talk I argue that, although not propositional, knowledge by acquaintance is nonetheless epistemically significant. I propose that there are two main marks of epistemic significance: information acquisition and epistemic evaluability. I show that knowledge by acquaintance displays both marks. Along the way I also argue that knowledge by introspective acquaintance has a special epistemic property, what I call complete and perfect grasp—an epistemic property that, in a sense, is analogous to an epistemic property that has traditionally been attributed to some introspective propositional knowledge, namely, infallibility. I conclude that there are good reasons for thinking that knowledge by acquaintance is epistemically significant.

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