Epistemological questions such as whether understanding of any type is attainable and, if so, what kind, have traditionally been crucial. Whether or not human knowledge is learned by experience alone is dependent on whether some information is inherent (i.e., available in certain ways at birth). Being knowledgeable is innately a psychological state. Thus certainty qualifies as knowledge. Whether the main goal of epistemology is to characterize the types of knowledge that exist and how that understanding is obtained, rather than to justify broad categories of underlying assumptions.
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