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- Walk:Viabilitaet + (In the biological theory of evolution we s … In the biological theory of evolution we speak of variability and selection, of environmental constraints and of survival. If an organism survives individually or as a species it means that, so far at least, it has been viable in the environment in which it happens to live. To survive, however, does not mean that the organism must in any sense reflect the character or the qualities of his environment. Gregory Bateson (1967) was the first who noticed that this theory of evolution, Darwin’s theory, is really a cybernetic theory because it is based on the concept of constraint rather than on the concept of causation. Somehow we always tend to think that the character of surviving organisms is determined by its environment. We speak of “adaptation”, and the idea of causation seems to become associated with that concept so that we end up believing that environmental constraints can cause certain biological structures or certain behaviors in organisms. This is a serious conceptual error. In order to remain among the survivors, an organism has to "get by" the constraints which the environment poses.e constraints which the environment poses.)
