The following text discusses Epistemology. Epistemology, the philosophical study of the nature, origin, and limits of human knowledge, grapples with the 'regress problem': if every belief must be justified by another belief, an infinite chain of justification seems inevitable unless one accepts foundational beliefs that require no further justification. Foundationalists argue for the existence of such basic beliefs, often grounded in sensory experience or self-evident reason, whereas coherentists contend that justification arises not from a linear chain but from the mutual support and logical consistency of a web of beliefs.