Epistemology Understanding the Limits and Reliability of Knowledge

This paper explores epistemology as the discipline concerned with the nature, sources, limits, and reliability of knowledge. Rather than treating epistemology as a purely philosophical subject, it examines its practical significance in science, engineering, medicine, economics, public policy, and everyday decision-making. The paper discusses the distinction between knowledge and belief, the evaluation of evidence, scientific reasoning, uncertainty, expertise, misinformation, and the growing importance of epistemological thinking in the age of artificial intelligence. It argues that epistemology can be understood as the "metrology of thought," providing a conceptual framework for evaluating the traceability, reliability, and justification of knowledge claims. Ultimately, the paper suggests that the ability to critically assess information and distinguish reliable knowledge from persuasive misinformation will become one of the most essential intellectual skills of the twenty-first century.