“We have since defined Gaia as a complex entity involving the Earth's biosphere, atmosphere, oceans, and soil; the totality constituting a feedback or cybernetic system which seeks an optimal physical and chemical environment for life on this planet.”

Gaia: A New Look at Life on Earth (1979)

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James E. Lovelock16

independent scientist, environmentalist and futurist 1919

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“The impact of these extra millions of people has spread even beyond the space they physically occupy. Their industries have changed the chemical constituency of the atmosphere. The oceans that cover most of the surface of the planet have been polluted and increasingly acidified. We now realise that the disasters that continue increasingly to afflict the natural world have one element that connects them all - the unprecedented increase in the number of human beings on the planet.”

David Attenborough (1926) British broadcaster and naturalist

How Many People Can Live on Planet Earth? (BBC Horizon, 2009)

“During the 1950s and 1960s most of the work which was called cybernetics tended to focus on control systems in engineering or on applications of the concept of feedback in fields ranging from mathematics to sociology. At the 1970 meeting of the American Society for Cybernetics in Philadelphia Heinz von Foerster sought to redirect attention to the original interests which had led to the founding of the field of cybernetics. In a paper titled "Cybernetics of Cybernetics" he made a distinction between first order cybernetics, the cybernetics of observed systems, and second order cybernetics, the cybernetics of observing systems.”

Stuart A. Umpleby (1944) American scientist

Stuart A. Umpleby (1991) "Strategies for Winning Acceptance of Second Order Cybernetics." In George E. Lasker, et al. (eds.) Advances in Human Systems and Information Technologies. Windsor, Canada: International Institute for Advanced Studies in Systems Research and Cybernetics, 1992. pp. 97-196. (paper)

“Any attempt to reduce the complex properties of biological organisms or of nervous systems or of human brains to simple physical and chemical systems is foolish.”

Kenneth E. Boulding (1910–1993) British-American economist

Source: 1970s, Ecodynamics: A New Theory Of Societal Evolution, 1978, p. 20

“Space settlements would also contain biospheres replicating Earth conditions and atmosphere.”

Vanna Bonta (1958–2014) Italian-American writer, poet, inventor, actress, voice artist (1958-2014)

Source: Zero Gravity interview (2006), p. 75

“The point of a brain is that it's not one huge neural network with feedback, it has up to 50 to 60 identified areas, all of which have feedback and all of which are capable of knowledge storage. We've got a complex system and, within this complex system, we can start discovering what the mechanisms that support deliberation are. Consciousness must come out of these interactions.”

Igor Aleksander (1937) scientist

The simple things are hardest (2005)

“Cybernetics, based upon the principle of feedback or circular causal trains providing mechanisms for goal-seeking and self-controlling behavior.”

Ludwig von Bertalanffy (1901–1972) austrian biologist and philosopher

General System Theory (1968), 4. Advances in General Systems Theory

“In complex systems cause and effect are often not closely related in either time or space. The structure of a complex system is not a simple feedback loop where one system state dominates the behavior. The complex system has a multiplicity of interacting feedback loops. Its internal rates of flow are controlled by nonlinear relationships. The complex system is of high order, meaning that there are many system states (or levels). It usually contains positive-feedback loops describing growth processes as well as negative, goal-seeking loops. In the complex system the cause of a difficulty may lie far back in time from the symptoms, or in a completely different and remote part of the system. In fact, causes are usually found, not in prior events, but in the structure and policies of the system.”

Jay Wright Forrester (1918–2016) American operations researcher

Source: Urban dynamics (1969), p. 9

“Intelligence is always connective. The biosphere works this way, through continuous contacts, catalysts, neurons which touch and activate other neurons. Today, this all has not only biological and chemical consistency, but a technological and teleinformatics one: it is not just a metaphor, or a "virtual" reality, but a real entity, a kind of emanation of the biosphere.”

Caterina Davinio (1957) Italian writer

Source: Virtual Mercury House. Planetary & Interplanetary Events, p. 138

“The process of formulating and structuring a system are important and creative, since they provide and organize the information, which each system. "establishes the number of objectives and the balance between them which will be optimized". Furthermore, they help identify and define the system parts. Furthermore, they help identify and define the system parts which make up its "diverse, specialized structures and subfunctions.”

Harold Chestnut (1917–2001) American engineer

Source: Systems Engineering Tools, (1965), Systems Engineering Methods (1967), p. 70; First sentences of Ch. 3. Formulating and Structuring the System
In this text Harold Chestnut is here citing:
C. West Churchman, Russell L. Ackoff, and E. Leonard Arnoff (1957) Introduction to Operations Research. Wiley. New York, and
J. Morley English (1964) "Understanding the Engineering Design Process." The Journal of Industrial Engineering, Nov-Dec. 1964 Vol 15 (6). p. 291-296

“Geometric calculus consists in a system of operations analogous to those of algebraic calculus, but in which the entities on which the calculations are carried out, instead of being numbers, are geometric entities which we shall define.”

Giuseppe Peano (1858–1932) Italian mathematician

Geometric Calculus (1895) as translated by Lloyd C. Kannenberg (2000) "The Operations of Deductive Logic'" Ch. 1 "Geometric Formations"

“We have since defined Gaia as a complex entity involving the Earth's biosphere, atmosphere, oceans, and soil; the totality constituting a feedback or cybernetic system which seeks an optimal physical and chemical environment for life on this planet.”

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James E. Lovelock16

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