The current state of the art in Dialogue Analysis represents a multitude of diverse models of dialogue,
communication, pragmatics, discourse, interaction, organization, and management, which claim to be science or philosophy. Can we
indeed expose science and philosophy to arbitrary decisions on issues and methodology? As soon as our object becomes ‘dialogue in
the stream of life’, science faces the issue of complexity. The challenge is to develop a new type of science which is capable of
grasping the complex whole and deriving the components from it. New Science as science of complexity also
demonstrates how science and philosophy can be united by description and explanation in science and evaluation and recommendation
in philosophy.