The role of a scientific expertise in the complex system dynamics

The history of science is closely connected with the history of the expertise. Scientific expertise prescribes society its laws, rules and regulations. Expert knowledge is seen as a particular structure by means of which they evaluate reality. Government authorities establish an expertise institute to consolidate and to strengthen their action. The expertise institute influences the dynamics of the system "science" and the society itself. Science studies complex systems. The more complex the system is, the greater the number of experts and the expertise. The process of decision-making in society becomes more complex. The author offers a way to describe the role of scientific expertise in the birth of new knowledge. The method is based on the concept of "replicator", "subject of self-organization" (Poizner Boris). A system of scientific knowledge starts being renewed when an open dynamic system is the most insta-ble. All replicators have almost equal conditions and opportunities. A chance plays the most crucial role. The quality and activity of a replicator are important. The key factor at this stage is the competition which is defined by experts. They choose the competition participants. Experts estimate replicator qualities in advance. Experts appointment, expert's opinion are considered as factors defining the choice of a development system at the bifurcation point. It is important to identify the mechanisms of self-organization, self-description and self-cleaning of experts.

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