Definition
Karl Popper (1902-1994) was an influential philosopher of science, known for his ideas about falsification. Think of him as the ultimate skeptic, always questioning and testing assumptions. He argued that scientific theories should be falsifiable, meaning they must be capable of being proven wrong. This distinguishes science from pseudoscience. His ideas have had a major impact on how we understand scientific knowledge. He emphasized critical thinking and open debate. Popper's philosophy encourages us to be open to new ideas and to challenge existing beliefs.