Noun
British philosopher (born in Austria) who argued that scientific theories can never be proved to be true, but are tested by attempts to falsify them (1902-1994)
Source: WordNetThe Steady State theory was what Karl Popper would call a good scientific theory: it made definite predictions, which could be tested by observation, and possibly falsified. Unfortunately for the theory, they were falsified. Stephen Hawking
Bartley in 1978 claimed, citation Sir Karl Popper is not really a participant in the contemporary professional philosophical dialogue; quite the contrary, he has ruined that dialogue. Source: Internet
E.J. Power, A Legacy of Learning, 52 Karl Popper, The Open Society and Its Enemies The freedom of expression is regarded as the lasting legacy deriving from this period. Source: Internet
Economics Karl Popper argued that Marxism shifted from falsifiable to unfalsifiable. Source: Internet
Falsifiability In the mid-20th century, Karl Popper put forth the criterion of falsifiability to distinguish science from nonscience. Source: Internet
He said that evolution must, as the creationists say, work in a goal-directed way D. W. Miller: Karl Popper, a scientific memoir. Source: Internet