Some reflections on psychologism, reductionism, and related issues leading towards an epistemological dualism of reason and experience

Discussing ideas from Husserl's 'Vom Ursprung der Geometrie' and the author's research on human information processing, it is suggested that there may be two relatively independent modes of knowledge. They are tentatively referred to as 'experience' and 'reason'. They constitute an epistemological dualism that may enable to avoid certain circularities in the foundation of knowledge and that may provide an avenue towards the integration of scientific and preschientific (phenomenological) knowledge. This duality involves two horizons advanced yet bu Husserl, but we do not know whether he went so far as to connect them with two modes of knowledge of which the one has a meta-status relative to the other making that it can found as well as relativate the other. Finally, having an infinite character, both horizons may offer distinct perspectives on ultimate reality and meanin