I got an interesting email this morning from Peder Johnson. Johnson, a now-retired University of New Mexico cognitive psychologist has been promoting a constructivist epistememology since he first became acquainted with Piaget's work back in the 1970s. It's an epistemological position somewhere between objective realism and solipsism. According to constructivists, all we know are our mental experiences, which are only constrained by reality. There is no means by which we can contact reality directly and, therefore, we can never evaluate its real validity. In short, we live in a fantasy of our own devising. Read More