Exploring Epistemology and Popper's Contributions

Popper's most significant philosophical discoveries include the concept that scientific theories must be testable, which is crucial in distinguishing fundamental physics from other disciplines. However, his most important contribution is the concept of a 'problem', which reshapes the understanding of epistemology. Unlike traditional views that focus on relying on reliable knowledge from sources like sensory perception or pure reason, Popper's concept of a problem shifts the focus to unsolved and interesting phenomena that require understanding. This challenges the misconception that knowledge is about relying on certainty, and instead emphasizes the pursuit of understanding the unknown.