Logical positivism
Thomas Kuhn's landmark book of 1962, "The Structure of Scientific Revolutions"—which identified "paradigms of science" overturned by revolutionary science within fundamental physics—critically destabilized confidence in scientific foundationalism, commonly if erroneously attributed to verificationism. Popper, who had long claimed to have killed verificationism but recognized that some would confuse his falsificationism for more of it, was knighted in 1965. In 1967, John Passmore, a leading historian of 20th-century philosophy, wrote, "Logical positivism is dead, or as dead as a philosophical movement ever becomes". Logical positivism's fall heralded postpositivism, where Popper's view of human knowledge as hypothetical, continually growing, and open to change ascended, and verificationism became mostly maligned.