Karl Popper

Karl Popper (born July 28, 1902, Vienna – died September 17, 1994, London) was an Austrian-British philosopher and one of the most influential thinkers of the 20th century, best known for his theory of falsifiability, which reshaped the scientific method. Rejecting classical inductivism, Popper argued that scientific theories must be testable and open to refutation. He criticized historicism, dogmatism, and totalitarianism, advocating for critical rationalism and the open society. His major works include The Logic of Scientific Discovery, The Open Society and Its Enemies, The Poverty of Historicism, and Postscript to the Logic of Scientific Discovery. Popper taught in New Zealand and at the London School of Economics, and was knighted in 1965. His ideas continue to influence philosophy of science, politics, and epistemology