ABSTRACT
Science needs (…) pictures. They largely determine its problem situations. A new picture, a new way of looking at things, a new interpretation may change the situation in science completely (…). But these pictures are not only much-needed tools of scientific discovery, or guides to it, they also help us to decide whether a scientific hypothesis is to be taken seriously; whether it is a potential discovery, and how its acceptance would affect the problem situation in science, and perhaps even the picture itself.
