Communication Between Proponents of Different Theories

Proponents of different theories are like native speakers of different guages. Communication between them goes on by translation, and it raises familiar difficulties. Despite the incompleteness of their communication, proponents of different theories can exhibit to each other,. not always easily, the concrete technical results achieva by those who practise within each theory. Little or no translation is required to apply at least some value criteria to those results. Accuracy and fruitfulness are most immediately applicable, perhaps followed by scope.