Cybernetics Group: A Brief History of American Cybernetics
The Cybernetics Group
Focusing on the Macy Foundation conferences, a series of encounters that captured a moment of transformation in the human sciences.
In this sequel to his acclaimed double biography, John von Neumann and Norbert Wiener, Steve Heims recounts another fascinating story in twentieth-century intellectual history – a series of encounters that captured a moment of transformation in the human sciences. Focusing on the Macy Foundation conferences, which were designed to forge connections between wartime science and postwar social science, Heims’s richly detailed account explores the dialogues that emerged among a remarkable group that included Wiener, von Neumann, Margaret Mead, Gregory Bateson, Warren McCulloch, Kurt Lewin, Molly Harrower, and Lawrence Kubie. Heims shows how those dialogues shaped ideas in psychology, sociology, anthropology, and psychiatry.
THE MACY CONFERENCES 1946-1953. THE COMPLETE TRANSACTIONS
Between 1946 and 1953, the Josiah Macy, Jr. Foundation sponsored a series of conferences aiming to bring together a diverse, interdisciplinary community of scholars and researchers who would join forces to lay the groundwork for the new science of cybernetics. These conferences, known as the Macy conferences, constituted a landmark for the field. They were the first to grapple with new terms such as information and feedback and to develop a cohesive and broadly applicable theory of systems that would become equally applicable to living beings and machines, economic and cognitive processes, and many scholarly disciplines. The concepts that emerged from the conferences come to permeate thinking in many fields, including biology, neurology, sociology, ecology, economics, politics, psychoanalysis, linguistics, and computer science.
This book contains the complete transcripts of all ten Macy conferences and the guidelines for the conference proceedings. These transcripts are supplemented with an introduction by Claus Pias that charts the significance of the Macy conferences to the history of science.
Macy Conferences Participants
A series of 10 focused meetings spanning 1942 to 1953 sponsored by the Josiah Macy Foundation, which brought together
- John von Neumann
- Norbert Wiener
- Margaret Mead
- Karl Lashley
- Ross Ashby
- Warren McCulloch
- Walter Pitts
- Arturo Rosenblueth
- Claude Shannon
- Heinz von Foerster
- Rafael Lorente de No ́
- R. Karl Pribram
- Duncan Luce
- Donald M. MacKay
- Gregory Bateson
- Kurt Lewin
- Molly Harrower
- Lawrence Kubie
- Filmer S. C. Northrop
- Lawrence K. Frank
- Heinrich Kluver
- Leonard J Savage
- Ralph Girard and many others
Stuart A. Umpleby
A Short History of Cybernetics in the United States
The Origin of Cybernetics
Cybernetics as a field of scientific activity in the United States began in the years after World War II. Between 1946 and 1953 the Josiah Macy, Jr. Foundation sponsored a series of conferences in New York City on the subject of „Circular Causal and Feedback Mechanisms in Biological and Social Systems.“ The chair of the conferences was Warren McCulloch of MIT. Only the last five conferences were recorded in written proceedings. These have now been republished.1 After Norbert Wiener published his book Cybernetics in 1948,2 Heinz von Foerster suggested that the name of the conferences should be changed to „Cybernetics: Circular Causal and Feedback Mechanisms in Biological and Social Systems.“ In this way the meetings became known as the Macy Conferences on Cybernetics.
In subsequent years cybernetics influenced many academic fields – computer science, electrical engineering, artificial intelligence, robotics, management, family therapy, political science, sociology, biology, psychology, epistemology, music, etc. Cybernetics has been defined in many ways: as control and communication in animals, machines, and social systems; as a general theory of regulation; as the science or art of effective organization; as the art of constructing defensible metaphors, etc.3 The term ‚cybernetics‘ has been associated with many stimulating conferences, yet cybernetics has not thrived as an organized scientific field within American universities. Although a few cybernetics programs were established on U.S. campuses, these programs usually did not survive the retirement or death of their founders. Quite often transdisciplinary fields are perceived as threatening by established disciplines.
Relative to other academic societies the meetings on cybernetics tended to have more than the usual controversy, probably due to the wide variety of disciplines represented by the participants. Indeed Margaret Mead contributed an article,
Cybernetics of Cybernetics, to the proceedings of the first conference of the American Society for Cybernetics, in which she suggested that cyberneticians should apply their knowledge of communication to how they communicate with each other.4
Interpretations of Cybernetics
Not everyone originally connected with cybernetics continued to use the term. The original group of cyberneticians created approximately four research traditions.
- The cybernetics of Alan Turing and John von Neumann became computer science, AI, and robotics. Turing5 formulated the concept of a Universal Turing Machine – a mathematical description of a computational device. He also devised the Turing test – a way of determining whether a computer program displays „artificial intelligence“.6 The related professional societies are the Association for Computing Machinery and the American Association for Artificial Intelligence.
- Norbert Wiener’s cybernetics became part of electrical engineering. This branch of cybernetics includes control mechanisms, from thermostats to automated assembly lines. The Institute of Electrical and Electronics Engineers, including the Systems, Man, and Cybernetics Society, is the main professional society. The principal concern is systems engineering.
- Warren McCulloch’s cybernetics became „second order cybernetics“. McCulloch chaired the Macy Foundation conferences. He sought to understand the functioning of the nervous system and thereby the operation of the brain and the mind. The American Society for Cybernetics has continued this tradition.
- Gregory Bateson and Margaret Mead pursued research in the social sciences, particularly anthropology, psychology, and family therapy. Work on the cybernetics of social systems is being continued in the American Society for Cybernetics and the Socio-Cybernetics Group within the International Sociological Association.
Other groups can also be identified. For example, a control systems group within psychology was generated by the work of William Powers.7 Biofeedback or neuro- feedback is a subject of investigation by some researchers in medicine and psycho- logy. The Santa Fe Institute has developed simulation methods based on the ideas of self-organizing systems and cellular automata.8 Some members of the International Society for the Systems Sciences have an interest in management cybernetics.
This paper recounts about sixty years of the history of cybernetics in the United States, divided into five year intervals. The emphasis will be on the third and fourth groups, McCulloch’s cybernetics and social cybernetics.
In 1943 two landmark papers were published. Warren McCulloch and Walter Pitts wrote, A Logical Calculus of the Ideas Immanent in Nervous Activity.9 This article sought to understand how a network of neurons functions so that we experience what we call „an idea.“ They presented their explanation in mathematical form.
Arthuro Rosenblueth, Norbert Wiener and Julian Bigelow published Behavior, Purpose, Teleology.10 They observed behavior, which they interpreted as purposeful, and then sought to explain how this phenomenon could happen without teleology, using only Aristotle’s efficient cause. Also in the early 1940s Wiener worked on a radar-guided anti-aircraft gun.
In the late 1940s the early Macy Conferences were held in New York City.11 They were attended by scientists including Norbert Wiener, Julian Bigelow, John von Neumann, Margaret Mead, Gregory Bateson, Ross Ashby, Grey Walter, and Heinz von Foerster. By 1949 three key books were published: Von Neumann’s and Morgenstern’s Theory of Games and Economic Behavior,12 Wiener’s (1948) Cybernetics: Or Control and Communication in the Animal and the Machine,13 and Shannon’s and Weaver’s (1949) The Mathematical Theory of Communication.14 These books defined a new science of information and regulation.
In the early 1950s more Macy conferences took place. This time proceedings were published with Heinz von Foerster as editor. Meanwhile the first commercial com- puters were manufactured.
In the 1950s the CIA was concerned about the possibility of brain-washing and mind control. Under the code name MKUltra experiments with LSD and other drugs were conducted at Harvard University and elsewhere.15 Some of the money for this research was channeled through the Macy Foundation. In one incident, a CIA employee was given LSD without his knowledge. Apparently he thought he was going mad and jumped out a window of a hotel in New York City. Ted Kaczynski, the Unabomber, when he was a student at Harvard, was an experimental subject of these mind control experiments.16
Early checkers-playing programs were written and raised the possibility of artifi- cial intelligence.17 In 1956 at a conference at Dartmouth University people interested in studying the brain and people interested in creating computer programs parted ways. Neurophysiologists valued work that illuminated the nature of cognition. Engineers valued work that led to useful machines. Thereafter the people interested in cybernetics and those interested in artificial intelligence had little interaction.
Following a sabbatical year working with Arthuro Rosenblueth and Warren McCulloch, Heinz von Foerster founded the Biological Computer Laboratory (BCL) at the University of Illinois in 1958. During the 1960s and early 1970s BCL was the leading center for cybernetics research in the U.S. Frequent visitors were Humberto Maturana, Francisco Varela, Gordon Pask, and Lars Loefgren. Graduates included Klaus Krippendorff, Alfred Inselberg, Crayton Walker, Roger Conant, and Stuart Umpleby. During the same period the Mental Health Research Institute (MHRI) at the University of Michigan was the leading center for general systems research in the U.S. The founding director of MHRI was James G. Miller. Other systems scientists at MHRI were Kenneth E. Boulding, Anatol Rapoport, Richard L. Meier, and John R. Platt.
In the early 1960s several conferences on self-organizing systems were held.18 One of these conferences was held in 1961 at the University of Illinois’s Allerton Park.19 As a result of an invitation made at this conference, Ross Ashby moved from England to Illinois. The work on self-organizing systems was a forerunner to the field of study now called ‚complexity‘ or ‚complex systems‘.
Although the Macy Foundation Conferences ended in 1953, the American Society for Cybernetics (ASC) was not founded until 1964. This seems rather late. Actually the ASC was founded not so much to continue the work of the Macy conferences but rather as a result of the Cold War.20 During the Presidential campaign in 1960, when John F. Kennedy was elected, there was talk about a „missile gap“ between the United States and the Soviet Union. Not long thereafter there began to be talk about a „cybernetics gap.“ Some people in the Soviet Union thought cybernetics would provide the theory they needed to operate their centrally planned economy.
Consequently, the Soviet government generously funded cybernetics research. Some people in the U.S. government then feared that the U.S. might fall behind in a criti- cal area of research, if this country did not also fund cybernetics research.
In Washington, DC, a cybernetics luncheon club was meeting. The participants included Paul Henshaw, Atomic Energy Commission; Carl Hammer, Univac; Jack Ford, CIA; Douglas Knight, IBM; Walter Munster; Bill Moore, lawyer. This group founded the American Society for Cybernetics (ASC). The founding ceremony was held at the Cosmos Club in Washington, DC. A grant from the National Science Foundation helped the Society to establish the Journal of Cybernetics. A conference on the social impact of cybernetics was held at Georgetown University in 1964.21 The first conference arranged by the ASC was held in 1967 at the National Bureau of Standards in Gaithersburg, MD.22
Social movements in the United States – against the Viet Nam war and for civil rights, women’s rights, and environmental protection – produced a time of student activism on campuses. In terms of research it was a productive period for the Bio- logical Computer Laboratory (BCL) at the University of Illinois.23
At a meeting of the American Society for Cybernetics in 1974 in Philadelphia, Heinz von Foerster introduced the term „second order cybernetics.“24 The Mansfield Amendment, which was an attempt to reduce campus unrest caused by the Viet Nam War, cut off government funds for research that was not related to a military mission, including research at BCL.25
There was an argument between the officers of ASC and the publisher of the Journal of Cybernetics. The dispute was submitted to arbitration, and the publisher won. Thereafter the journal continued to be published, but without ASC involvement. The journal published articles primarily in engineering. However, the field of cybernetics was increasingly emphasizing biology and the social sciences.
Heinz von Foerster retired from the University of Illinois in 1976 and moved to California. There he communicated with Paul Watzlawick, John Weakland and others at the Mental Research Institute in Palo Alto. During this time second order cybernetics or constructivist epistemology had a significant impact on the field of family therapy.26
In the late 1970s no meetings of the American Society for Cybernetics were held. The people connected with BCL attended meetings of the Society for General Systems Research, which a few years later changed its name to the International Society for the Systems Sciences.
For a few years, due to a conflict among the ASC officers in Washington, DC, there was a rival organization, the American Cybernetics Association (ACA), based in Philadelphia. The two organizations came back together a few years later through the efforts of Barry Clemson, Doreen Steg, Klaus Krippendorff and others. The reorganized society used the ASC name and the ACA by-laws. But the society remained small, usually having fewer than 400 members.
Stuart Umpleby, who received his PhD from the University of Illinois in 1975 and moved to The George Washington University in Washington, DC, received a National Science Foundation (NSF) grant for an Electronic Information Exchange for Small Research Communities. The BCL group moved into cyberspace.27 This group, discussing General Systems Theory, was one of nine academic groups using the Electronic Information Exchange System (EIES) at New Jersey Institute of Technology. For three years in the late 1970s cyberneticians and systems scientists across the United States and a few in Europe communicated with each other using email and computer conferencing via dumb terminals and, initially, 300 baud modems. The long distance telephone charges were paid by the NSF grant. When the grant ran out, there was disappointment that universities would not pay the communications charges. Indeed, it took almost fifteen years before costs declined sufficiently to permit regular email communication among academics.
As a result of being the moderator of the on-line discussion group, Umpleby was elected president of ASC. A planning conference in 1980 charted a new direction for the Society.28 ASC began organizing conferences again and reestablished connec- tions with its former journal, now called Cybernetics and Systems.
A series of meetings with Soviet scientists was started as a way to bring leading American scientists together to review fundamentals, in particular to discuss second order cybernetics.29 The meetings were funded by the American Council of Learned Societies and the Soviet Academy of Sciences. These meetings were quite productive for exchanging views; however, a controversy with the Soviet side arose over the participation of Vladimir Lefebvre, a Soviet émigré. Prior to glasnost and perestro- ika Lefebvre’s theory30 of two systems of ethical cognition was not accepted by the Soviet government. However, during the break up of the USSR Lefebvre’s work was used by people at the highest levels of government in both the United States and the Soviet Union to prevent miscommunication.31
Lefebvre’s work is being further developed through annual conferences organized by Vladimir Lepsky in the Insti- tute of Psychology of the Russian Academy of Sciences in Moscow. Lefebvre’s theory of reflexive control is being used by psychologists and educators to help with the psychological and cultural difficulties involved in the social, political, and economic transition in Russia.32
Members of the American Society for Cybernetics began offering tutorials on first and second order cybernetics prior to systems conferences (see Table 1). They were seeking to make a scientific revolution.33 At a conference in St. Gallen, Switzerland, in 1987 the members of the American Society for Cybernetics decided to focus their attention almost exclusively on advancing second order cybernetics.34 The focus on second order cybernetics to the exclusion of other interpretations of cybernetics had the effect of reducing the membership of the ASC to about one hundred mem- bers. However, there was strong interest in second order cybernetics in Europe.35
Table 1. Definitions of First and Second Order Cybernetics
First Order Cybernetics
Second Order Cybernetics
The cybernetics of observed systems
The cybernetics of observing system
The purpose of a model
The purpose of modeler
Interaction among the vari- ables in a system
Interaction between observer and observed
Theories of social systems
Theories of the interaction between ideas and society
The second Soviet-American conference was held in Tallinn, Estonia, in 1988. Due to glasnost and perestroika the original topics (epistemology, methodology, and management) were expanded to include large-scale social experiments.
In 1990 two symposia on Theories to Guide the Reform of Socialist Societies were held in Washington, DC, and Vienna, Austria.36 These meetings were the beginning of a multi-year effort both to understand the changes occurring in the former Soviet Union from the perspective of social theory and to use knowledge of social systems to guide the transitions.
The work on second order cybernetics was also changing. The members of the ASC had worked almost twenty years on developing and promoting the point of view known as second order cybernetics or constructivism. Some people wanted to move from a period of revolutionary science to a new period of normal science.37 One way to understand the change is to say that the period of engineering cyberne- tics lasted from the mid 1940s to the mid 1970s. The period of biological cybernetics or second order cybernetics lasted from the mid 1970s to the mid 1990s. And the period of social cybernetics began in the mid 1990s (see Table 2).
Symposia on the transitions in the former Soviet Union continued to be held as part of the European Meetings on Cybernetics and Systems Research. These meetings are held every two years in Vienna, Austria. The symposia bring together scientists from East and West.
In Washington, DC, a series of meetings on the Year 2000 Computer Problem were held with the support of The Washington Post. These meetings were based on the idea that „y2k“ could be regarded as an experiment which would reveal the amount of interconnectedness in our increasingly cybernetic society.38
Niklas Luhmann’s writings in sociology introduced ideas such as constructivism and autopoiesis to social scientists in Europe.39 A Socio-Cybernetics Working Group within the International Sociological Association was established by Felix Geyer and others.
In the early years of the 21st century large conferences on informatics and cyber- netics were organized by Nagib Callaos and his colleagues in Orlando, FL. One result has been organizing efforts in Latin America stimulated by the conferences in Orlando. Annual conferences on reflexive control began to be held in Moscow
Table 2. Three Versions of Cybernetics
of epistemo logy
A realist view of epistemology: knowledge is a „picture“ of reality
A biological view of epistemology: how the brain func tions
A pragmatic view of epistemology: knowledge is con structed to achieve human purposes
A key distinction
Reality vs. Scientific Theories
Realism vs. Constructivism
The biology of cognition vs. the observer as a social participant
The puzzle to be solved
Construct theories which explain ob served phenomena
Include the ob server within the domain of science
Explain the rela tionship between the natural and the social sciences
What must be explained
How the world works
How an individual constructs a „real ity“
How people cre ate, maintain, and change social sys tems through lan guage and ideas
A key as sumption
Natural processes can be explained by scientific theo ries
Ideas about knowl edge should be rooted in neuro physiology
Ideas are accepted if they serve the observer’s pur poses as a social participant
An impor tant conse quence
Scientific know- ledge can be used to modify natural processes to benefitpeople
If people accept constructivism, they will be more tolerant
By transforming conceptual systems (through persua sion, not coercion), we can change society
and may lead to the founding of a Russian Association in the field of cybernetics and systems.
In the International Society for the Systems Sciences there is growing interest in group facilitation and participation methods.40 An increasing number of books about cybernetics appear, frequently by German authors.41 A Heinz von Foerster
Society was established in Vienna to further develop the ideas explored at the Bio- logical Computer Laboratory. A new biography of Norbert Wiener was published which explains the break that occurred between Wiener and McCulloch.42
The „global university system“ created by the Internet and the Bologna process is not only greatly facilitating communication among scientists around the world but is also leading to a new metaphor for the social implications of cybernetics, an alternative metaphor to the „global brain.“43
Questions about the History of Cybernetics
Given the promising and exciting beginnings of cybernetics, the outstanding sci- entists involved, and the subsequent impact of cybernetics on many disciplines, it is curious that the term ‚cybernetics‘ is not widely known or used today, even though most professional people spend several hours a day in cyberspace. Margaret Mead commented on the development of cybernetics at the first ASC conference in 1968:
„We were impressed by the potential usefulness of a language sufficiently sophisticated to be used to solve complex human problems, and sufficiently abstract to make it possible to cross disciplinary boundaries. We thought we would go on to real interdisciplinary research, using this language as a medium. Instead, the whole thing fragmented. Norbert Wiener wrote his book Cybernetics. It fascinated intellectuals and it looked for a while as if the ideas that he expressed would become a way of thought. But they didn’t.“44
Why did the cybernetics movement break up following the Macy Conferences? Perhaps it never came together. People stayed in their home disciplines. Many very thought-provoking meetings were held under the label of cybernetics, but the educational programs that were established did not survive in discipline-oriented universities. When their founders retired, the programs were closed. One conse- quence of the lack of educational programs at universities is that key ideas tend to be reinvented. One example is the work on complex systems centered at the Santa Fe Institute. These writers rarely refer to the work in cybernetics and systems theory.
What prevented unity? There was never agreement on fundamentals. Eric Dent in his doctoral dissertation at The George Washington University provides an explanation of the continuing heterogeneity of the field of cybernetics and systems science.45 Dent claims that after World War II the systems sciences dramatically expanded the scientific enterprise. Specifically, science expanded along eight dimen- sions: causality, determinism, relationships, holism, environment, self-organization, reflexivity, and observation.46 However, not all of the various systems fields chose to emphasize the same dimensions. Indeed, each field chose a unique combination. This meant that the various systems fields did not agree on what the key issues were. As a result each subfield developed its own language, theories, methods, traditions, and results.
These eight dimensions have both united and divided the systems sciences. The dimensions unite the systems sciences because each of the subfields of systems sci- ence uses at least one of the new assumptions, whereas classical science uses none. The dimensions divide the systems sciences because each subfield emphasizes a different dimension or set of dimensions. Hence, issues that are very important in one subfield are less important or do not arise in other subfields. Given different questions, the answers in theories and methods have been different.47 Perhaps in the 21st century the progress made in developing the field of cybernetics in many disciplines will be successfully integrated.
1 Claus Pias, ed., Cybernetics – Kybernetik: The Macy Conferences 1946–1953, Zürich and Berlin 2004.
2 Norbert Wiener, Cybernetics: or Control and Communication in the Animal and the Machine, Cambridge, MA 1948.
3 Larry Richards, Defining ‚Cybernetics‘ (1987), http://www.asc-cybernetics.org/foundations/definitions.htm.
4 Margaret Mead, Cybernetics of Cybernetics, in: Heinz von Foerster et al., eds., Purposive Systems, New York 1968.
5 Alan Turing, On Computable Numbers, with an Application to the Entscheidungsproblem, in: Pro- ceedings of the London Mathematical Society 42/2 (1936), 230–265. Reprinted in Martin Davis, ed., The Undecidable, New York 1965.
6 Alan Turing, Computing Machinery and Intelligence, in: Mind 59 (1950), 433–460.
7 William Powers, Behavior: the Control of Perception, New York 1973.
8 M. Mitchell Waldrop, Complexity: The Emerging Science at the Edge of Order and Chaos, New York 1992.
9 Warren S. McCulloch and Walter Pitts, A Logical Calculus of the Ideas Immanent in Nervous Activity, in: Bulletin of Mathematical Biophysics 5 (1943), 115–133; reprinted in Warren S. McCulloch, Embodiments of Mind, Cambridge, MA, 1965, 19–39.
10 Arturo Rosenblueth, Norbert Wiener and Julian Bigelow, Behavior, Purpose and Teleology, in: Philosophy of Science 10 (1943), 18–24; reprinted in W. Buckley, ed., Modern Systems Research for the Behavioral Scientist, Chicago 1968, 221–225.
11 Steve J. Heims, The Cybernetics Group, Cambridge, MA 1991.
12 John von Neumann and Oskar Morgenstern, Theory of Games and Economic Behavior, Princeton, NJ 1944.
13 Wiener, Cybernetics.
14 Claude Shannon and Warren Weaver, The Mathematical Theory of Communication, Urbana, Ill. 1949.
15 John Marks, The Search for the Manchurian Candidate, New York 1978.
16 Alston Chase, Harvard and the Unabomber: The Education of an American Terrorist, New York 2003.
17 Arthur Samuel, Some Studies in Machine Learning Using the Game of Checkers in: IBM Journal 3/3 (1959), 210–229.
18 Marshall Yovits and Scott Cameron, eds., Self-Organizing Systems, London 1960; Marshall Yovits, George Jacobi, Gordon Goldstein, eds., Self-Organizing Systems – 1962, Washington 1962.
19 Heinz von Foerster and George W. Zopf Jr., eds., Principles of Self-Organization, New York 1962.
20 Charles Richard Dechert, ed., The Social Impact of Cybernetics, New York 1966.
22 Heinz von Foerster et al., eds., Purposive Systems, New York 1968.
23 Albert Müller and Karl H. Müller, eds., An Unfinished Revolution? Heinz von Foerster and the Bio- logical Computer Laboratory, 1958–1976, Wien 2007.
24 Heinz von Foerster, Cybernetics of Cybernetics, in: Klaus Krippendorff, ed., Communication and Control in Society, New York 1979.
25 Stuart Umpleby, Heinz von Foerster and the Mansfield Amendment, in: Cybernetics and Human Knowing 10 (2003), No. 3–4.
26 Paul Watzlawick, The Invented Reality: How do we Know what we Believe we Know? Contributions to Constructivism, New York 1984.
27 Stuart Umpleby, Computer Conference on General Systems Theory: One Year’s Experience, in: M. Henderson and M. MacNaughton, eds., Electronic Communication: Technology and Impacts, Boul- der, CO 1979; Stuart Umpleby and K. Thomas, Applying Systems Theory to the Conduct of Systems Research, in: Anthony Debons ed., Information Science in Action: System Design, vol. l, The Hague 1983.
28 Stuart Umpleby, The 1980 Planning Conference of the American Society for Cybernetics, in: Cyber- netics Forum 10/1 (1981).
29 Stuart Umpleby, American and Soviet Discussions of the Foundations of Cybernetics and General Systems Theory, in: Cybernetics and Systems 18 (1987); Stuart Umpleby and Vadim Sadovsky, eds., A Science of Goal Formulation: American and Soviet Discussions of Cybernetics and Systems Theory, New York 1991.
30 Vladimir A. Lefebvre, Algebra of Conscience: A Comparative Analysis of Western and Soviet Ethical Systems, London 1982.
31 Stuart Umpleby, A Preliminary Inventory of Theories Available to Guide the Reform of Socialist Societies, in: Stuart Umpleby and Robert Trappl, eds., Cybernetics and Systems 22/4 (1991).
32 Stuart Umpleby and Tatyana A. Medvedeva, Psychological Adjustment to Economic and Social Change, in: Reflexive Control 1/1 (2001), 102–112.
33 Stuart Umpleby, On Making a Scientific Revolution, in: Heinz von Foerster, ed., Cybernetics of Cy- bernetics, Urbana 1974; reprinted in 1995, Minneapolis: Future Systems.
34 Stuart Umpleby, Three Conceptions of Conversation, in: Continuing the Conversation: A Newsletter of Ideas in Cybernetics, No. 10, 1987.
35 Stuart Umpleby, Cybernetics of Conceptual Systems, in: Cybernetics and Systems 28/8 (1997), 635– 652.
36 Umpleby, Inventory.
37 Stuart Umpleby, The Science of Cybernetics and the Cybernetics of Science, in: Cybernetics and Systems 21/1 (1990).
38 Stuart Umpleby, Coping with an Error in a Knowledge Society: The Case of the Year 2000 Computer Crisis, in: George E. Lasker et al., eds., Advances in Sociocybernetics and Human Development VIII, Windsor, Canada 2000.
39 Niklas Luhmann, Social Systems. Stanford, CA 1995.
40 Ken Bausch, ed., Special Issue on Agoras of the Global Village, World Futures, 6/1–2 (2004).
41 Müller and Müller, Revolution.
42 Flo Conway and Jim Siegelman, Dark Hero of the Information Age: In Search of Norbert Wiener, the Father of Cybernetics, New York 2005.
43 Stuart Umpleby, Strengthening the Global University System, in: R. Meyer, ed., Perspectives in Higher Education Reform, vol. 12, Alliance of Universities for Democracy, American University in Bulgaria, Blagoevgrad, Bulgaria 2003.
44 Mead, Cybernetics.
45 Eric B. Dent, The Design, Development, and Evaluation of Measures to Survey Worldview in Orga- nizations. Ann Arbor, MI University Microfilms 1996
46 Eric B. Dent, System Science Traditions: Differing Philosophical Assumptions, in: Systems, Journal of the Polish Systems Society 6 (2001), No. 1–2.
47 Stuart Umpleby and Eric B. Dent, The Origins and Purposes of Several Traditions in Systems Theory and Cybernetics, in: Cybernetics and Systems 30 (1999).
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