“Physical irreversibility manifests itself in the fact that, whenever the system is in a state far removed from equilibrium, it is much more likely to move toward equilibrium, than in the opposite direction.”

— William Feller

Source: An Introduction To Probability Theory And Its Applications (Third Edition), Chapter XV, Markov Chains, p. 397.

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William Feller 30

Croatian-American mathematician 1906–1970

W. Ross Ashby (1903–1972) British psychiatrist

Source: Design for a Brain: The Origin of Adaptive Behavior (1952), p. 238

“My colleague Paul Glansdorff and I have investigated the problem as to if the results of near-equilibrium can be extrapolated to those of far - from-equilibrium situations and have arrived at a surprising conclusion: Contrary to what happens at equilibrium, or near equilibrium, systems far from equilibrium do not conform to any minimum principle that is valid for functions of free energy or entropy production.”

Ilya Prigogine (1917–2003) physical chemist

Ilya Prigogine (1996) "The End of Certainty: Time, Chaos, and the New Laws of Nature". p. 64. Cited in: Ilya Prigogine http://www.eoht.info/page/Ilya+Prigogine at echt info. By Sadi-Carnot et all., Jan 28 2013.

“There is reason for this shift of emphasis from any actual price to a hypothetical 'equilibrium' price. It is usually more interesting to know where a train is going than to know exactly where it is at any moment. The 'equilibrium' position of any price, wage, firm, industry, or system is the position toward which it is tending. The importance of equilibrium analysis, then, is that it enables us to discuss the directions of change. If a train is in New- York and its 'equilibrium' position is in Chicago, we are reasonably confident that the general direction of its motion will be westward, even if it unaccountably decides to travel north for the first hundred and fifty miles.”

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

Source: 1940s, Economic Analysis, 1941, p. 637-638 (rev. ed. 1947); cited in Macroeconomische theorie ingeleid en voortgezet. Kluwer, 2006. p. 3

“Every stable system has the property that if displaced from a state of equilibrium and released, the subsequent movement is so matched to the initial displacement that the system is brought back to the state of equilibrium. A variety of disturbances will therefore evoke a variety of matched reactions.”

W. Ross Ashby (1903–1972) British psychiatrist

Source: Design for a Brain: The Origin of Adaptive Behavior (1952), p.54

“The evolution of a physicochemical system leads to an equilibrium state of maximum disorder.”

Ilya Prigogine (1917–2003) physical chemist

Thermodynamics of Evolution (1972)

“[The equilibrium model describes systems] which, in moving to an equilibrium point, typically lose organization, and then tend to hold that minimum level within relatively narrow conditions of disturbance.”

Walter F. Buckley (1922–2006) American sociologist

Source: Sociology and modern systems theory (1967), p. 40 as cited in: Jacquie L'Etang, Magda Pieczka (2006) Public Relations: Critical Debates and Contemporary Practice. p. 335.

“Conventional physics deals only with closed systems, i. e. systems which are considered to be isolated from their environment… However, we find systems which by their very nature and definition are not closed systems. Every living organism is essentially an open system. It maintains itself in a continuous inflow and outflow, a building up and breaking down of components, never being, so long as it is alive, in a state of chemical and thermodynamic equilibrium but maintained in a so-called steady state which is distinct from the latter.”

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

Source: General System Theory (1968), 7. Some Aspects of System Theory in Biology, p. 166-167 as quoted in: Eugene Thacker (2004) Biomedia. University of Minnesota Press. p. 150

“Systems don't change easily. Systems try to maintain themselves, and seek equilibrium. To change a system, you need to shake it up, disrupt the equilibrium. That often requires conflict.”

Starhawk (1951) American author, activist and Neopagan

Toward an Activist Spirituality (2003)
Context: Systems don't change easily. Systems try to maintain themselves, and seek equilibrium. To change a system, you need to shake it up, disrupt the equilibrium. That often requires conflict.
To me, conflict is a deeply spiritual place. It's the high-energy place where power meets power, where change and transformation can occur.

“In Deutsch's view, to say that a social system is in equilibrium implies that: 1) it will return to a particular state when disturbed; 2) the disturbance is coming from outside the system; 3) the greater the disturbance the greater the force with which the system will return to its original state; 4) the speed of the system's reaction to disturbance is somehow less relevant — a sort of friction, or blemish having no place in the "ideal" equilibrium; 5) no catastrophe can happen within the system.”

Walter F. Buckley (1922–2006) American sociologist

Source: Sociology and modern systems theory (1967), p. 56.

“Living systems are never in equilibrium. They are inherently unstable. They may seem stable, but they’re not. Everything is moving and changing. In a sense, everything is on the edge of collapse.”

Michael Crichton book Jurassic Park

Source: Jurassic Park

“Physical irreversibility manifests itself in the fact that, whenever the system is in a state far removed from equilibrium, it is much more likely to move toward equilibrium, than in the opposite direction.”

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