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Why do empiricists treat experience as the main test of factual claims?
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Epistemology
The refraction (bending) of light as it passes from air into water causes an optical illusion: straws in the glass of water appear broken or bent at the water's surface.
Empiricists treat experience as the primary test for factual claims because they hold that all significant knowledge is a posteriori, meaning it is derived from and justified by sensory experience rather than innate ideas or pure reason.12
This perspective is rooted in the following core principles:
- Origin of Concepts: Empiricism asserts that all concepts originate in experience. For many empiricists, concepts are mental copies or complex combinations of items directly encountered through the senses.12
- Justification of Beliefs: Empiricists argue that for a belief to be rationally acceptable or "factual," it must be grounded in evidence obtained through observation or experimentation. This contrasts with rationalism, which posits that the intellect can grasp truths independently of sense perception.1342
- Rejection of A Priori Significance: While many empiricists acknowledge the existence of a priori propositions (such as those in logic or mathematics), they deny that these provide significant or factual information about the world.2
By prioritizing empirical evidence, empiricists aim to ground human knowledge in observable reality, thereby opposing reliance on authority, intuition, or abstract speculation as reliable sources of truth.13