Ludwig von Bertalanffy
Ludwig von Bertalanffy was an Austrian-born biologist who developed the idea of General Systems Theory, arguing that systems as a whole had properties and perhaps even laws, that were different from, and could not be reduced to, the properties and laws of their components. Others had recognized systems in various ways, often claiming that they are "more than the sum of their parts." Bertalanffy promoted the idea of "organicism," that systems of many kinds should be treated as organisms with multiple hierarchical levels. Like Ernst Mayr, Bertalanffy believed that holist biological models might be better models for systems than mechanistic reductionist models. Bertalanffy was skeptical that Darwinian evolution, based on random chance variations, could explain all of biology.
From the standpoint of science... the history of life does not appear to be the result of an accumulation of changes at random but subject to laws. This does not imply mysterious controlling factors that in an anthropomorphic way strive towards progressive adaptation, fitness, or perfection. Rather there are principles of which we already know something at present, and of which we can hope to learn more in the future. Nature is a creative artist; but art is not accident or arbitrariness, but the fulfilment of great laws,Many nineteenth-century biologists were "vitalists," as was philosopher Henri Bergson with his élan vital. Like vitalism, Bertalanffy's organicism appears to incorporate some kind of non-physical and as yet undiscovered new force of nature. General Systems Theory is a form of emergence theory. Emergence was implicit in the work of the work of John Stuart Mill and explicit in "emergentists" like George Henry Lewes (1875), C. Lloyd Morgan (1912), Samuel Alexander (1920), and C. D. Broad (1925). Many scientists had known for decades before Bertalanffy that living systems somehow avoid the inevitable degradation suffered by physical systems, according to the second law of thermodynamics. Instead of approaching thermodynamic equilibrium (complete chaos and maximum entropy, living systems maintain themselves in a high state of order (or information). Earlier thinkers had called this a "dynamic equilibrium," but Bertalannfy called it "flow equilibrium," inventing the German word Fliessgleichgewicht," which was later translated into English as "steady state." In his 1932 book Theoretische Biologie, he described living systems as open systems that exchange matter and energy with the environment. More important than the new terminology, Bertalanffy in 1940 described what was happening in a way made famous five years later by Erwin Schrödinger in his book What is Life?, namely that energy is not enough, it must be energy with low (or negative) entropy, or what Bertalanffy correctly called "free energy.". Bertalanffy wrote:
In open systems we have not only production of entropy due to irreversible processes, but also import of negative entropy. This is the case in the living organism which imports [consumes nutrients with] complex molecules that are high in free energy. Thus, living systems, maintaining themselves in a steady state, can avoid the increase of entropy, and may even develop towards states of increased order and organization.In What is Life?, Schrödinger would say that "life feeds on negative entropy." Schrödinger described this as "order out of order" that distinguishes life from the "order out of chaos" exhibited by many complex physical systems studied today. In terms of information philosophy, living systems are complex information-processing systems. They feed on other information-rich living systems. Living systems can be described as having a form or shape through which passes information-rich matter and energy with low entropy. The incoming matter and energy exit the living system as matter and energy, but now with high entropy. The information input is degraded in the process of maintaining the living system in its highly ordered information state. Bertalanffy may have been the first biologist to fully appreciate this aspect of living systems. He also appreciated that the main difference between biological and physical systems was that the information content of biological systems means that they have a memory of the past or a "history," unlike most physical things.
The Historical Character of Life
Normal | Teacher | Scholar