description Karl Popper Overview
Karl Popper was a 20th-century Austrian-British philosopher of science who proposed falsifiability as the criterion for scientific demarcation, articulated in The Logic of Scientific Discovery (1934).
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What does Karl Popper mean by falsifiability?
A scientific claim must expose itself to possible observations that could show it false, rather than merely accumulating confirming examples. Popper developed this demarcation principle in The Logic of Scientific Discovery, first published in German in 1934.
Did Popper believe scientists can prove a theory true?
No, he argued that successful tests corroborate a theory without proving it permanently true. A better theory survives severe attempts at refutation while explaining more than its rivals.
Why did Popper criticize historicism?
He rejected the idea that history unfolds according to discoverable laws that permit large-scale prophecy about society's future. The Poverty of Historicism and The Open Society and Its Enemies connect that criticism to his defense of piecemeal reform.
What is Popper's open society?
An open society permits criticism, institutional change, and the peaceful removal of rulers without treating any authority as infallible. In The Open Society and Its Enemies, Popper contrasts this model with totalitarian politics and attacks what he sees as authoritarian tendencies in Plato, Hegel, and Marx.
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