Radical constructivism, thus, is radical because it breaks with convention and develops a theory of knowledge in which knowledge does not reflect an 'objective' ontological reality.
Paul WatzlawickAs I have already said, the belief that one's own view of reality is the only reality is the most dangerous or all delusions. It becomes still more dangerous if it is coupled with the missionary zeal to enlighten the rest of the world, whether the rest of the world wishes to be enlightened or not. To refuse to embrace wholeheartedly a particular definition of reality, to dare to see the world differently can become a "think crime" in a truly Orwellian sense as we get steadily closer to 1984.
Paul WatzlawickThe belief that one's own view of reality is the only reality is the most dangerous of all delusions.
Paul WatzlawickIn other words, what is supposedly found is an invention whose inventor is unaware of his act of invention, who considers it as something that exists independently of him; the invention then becomes the basis of his world view and actions.
Paul Watzlawick