Because the Systems Age is teleologically oriented, it is preoccupied with systems that are goal-seeking or purposeful, that is, systems that can display choice of either means or ends, or both. It is interested in purely mechanical systems only.
For the Middle Ages man was in every sense the centre of the universe. The whole world of nature was believed to be teleologically subordinate to him and his eternal destiny. Toward this conviction the two great movements which had become united in the medieval synthesis, Greek philosophy and Judeo-Christian theology, had irresistibly led.