Topic summary
Human knowledge

Extracted from the Wikipedia article Knowledge.
Structure
Coherentists and infinitists avoid these problems by denying the contrast between basic and non-basic reasons. Coherentists argue that there is only a finite number of reasons, which mutually support and justify one another. This is based on the intuition that beliefs do not exist in isolation but form a complex web of interconnected ideas that is justified by its coherence rather than by a few privileged foundational beliefs. One difficulty for this view is how to demonstrate that it does not involve the fallacy of circular reasoning. If two beliefs mutually support each other then a person has a reason for accepting one belief if they already have the other. However, mutual support alone is not a good reason for newly accepting both beliefs at once. A closely related issue is that there can be distinct sets of coherent beliefs. Coherentists face the problem of explaining why someone should accept one coherent set rather than another. For infinitists, in contrast to foundationalists and coherentists, there is an infinite number of reasons. This view embraces the idea that there is a regress since each reason depends on another reason. One difficulty for this view is that the human mind is limited and may not be able to possess an infinite number of reasons. This raises the question of whether, according to infinitism, human knowledge is possible at all.