Complexity Files/Leonard Cybernetics Bestiary.Pdf
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Cybernetics Bestiary Allenna Leonard March 2008 Many concepts from systems and cybernetics are familiar to us through old sayings, fables, nursery rhymes and everyday use as well as newer metaphors and examples. Here are a few of them to look at in a new light. The Cow that Jumped Over the Moon Ridiculous, of course, unless you happen to be looking up a sloping field at moonrise at a cow on the crest of the hill. Ok, the cow probably stepped rather than jumped, but you get the picture. Or put another way, the picture you, as the observer, get depends a lot on who you are and where you are and how you think about the world. What you see isn’t what someone else – with an equally valid context – sees. You have to duplicate the conditions if you want to duplicate the observation…and it will never be exactly the same because you are you. The Dog that Did Not Bark Sometimes what isn’t there is what is most significant. Arthur Conan Doyle’s detective, Sherlock Holmes, was a very observant man. He noted that, since the dog hadn’t barked; someone the dog knew, not a strange intruder, had committed the crime. It is easier to see something that is present that shouldn’t be than something that should be there and isn’t. More Than One Way to Skin a Cat There can be many paths to the same outcome – a condition Ludwig von Bertalanffy referred to as equifinality. It can apply to entrepreneurship, learning to play or environmental catastrophe. This concept has an interesting parallel in the development of cybernetics and systems theory in which thinkers from mathematics and physics; social and life sciences; and management and engineering came to understandings of circular causality and dynamic processes that arrived at similar conclusions from widely different sources. Bateson’s Polyploid Horse Gregory Batson, in Mind and Nature, related a fable of a horse that was much bigger – exactly twice the size of an ordinary Clydesdale. The problem was that multiplying the size by two multiplies the weight and the amount of food needed to sustain it by eight, the diameter of its windpipe and esophagus and its surface area by only four, and so on. In short, the animal would not be viable. A viable creature twice the size of a Clydesdale would be –-- an elephant. It would have thick legs to support its weight, a digestive tract capable of handling the amount of food it required and so on. Scalability implies multiple and different inherent limits within its constant circumstances: in this case, gravity, oxygenation, and food energy requirements, among others. Maturana’s Frog In a paper associated with Humberto Maturana * called ‘What the frog’s eye tells the frog’s brain’, the frog’s interpretations of the behaviour of moving objects are described as falling into three categories: if it is small and moving, it’s food; if it is the same size and moving, it’s a potential mate; and if it is larger and moving, it’s a threat. These three categories work more often than not and serve the frog’s survival well. But, if the situation changes, the frog does not notice. For instance, it will not try to eat a fly immobilized on a pin but will try to eat a rubber fly tossed in the air. In the same way, our choices cannot take into account new variables with old measurement frameworks. We need to test the frameworks (or the assumptions) from time to time to make sure they are still providing critical information and that no new variables have arisen. Vickers’ Trapped Lobster Geoffrey Vickers is well known for his quote “The trap is a function of the nature of the trapped.” His illustration was a lobster trap. It lures the lobster in but the lobster’s perceptual map of the world doesn’t allow it to see the way out – which is counter-intuitive if you’re a lobster. A man, or an otter, would not be trapped in a similar way because they would try to get out the way they came in. But humans can be trapped too if the trap lures them into a dilemma that their mind-set cannot escape. The Canary in the Mine Coal miners, who worked in conditions where combustible or poisonous gas was always a risk, took canaries down the shafts with them. The canary is much more sensitive to the accumulation of gases than a human is and will keel over long before the miner would notice. But the miner did watch the canary, and knew to leave when the canary collapsed. Such indicators have played an important role in picking up early indications that something is going wrong while there may still be time to address the problem. The Elephant in the Room The elephant in the room has become a metaphor for the big problem no one wants to bring up because it represents an unpleasant truth that the powers that be don’t want to hear or a problem that the people in the room do not understand or have no resources to solve. Either way, pretending the elephant isn’t there means that any efforts that are made are likely to be irrelevant or detrimental. The Snake Eating its Tail The ouroboros is a symbol of cyclicality that is often used to represent self- reference, self-reflexivity or self-recreation. The snake or dragon eating its own tail is complete in and of itself. It is in some senses closed to outside information, reminding us that self-reference both helps us make sense of our perceptions and experiences and blocks us from seeing what might be beyond the frame of our own human senses or our traditions and understandings. The symbol is also sometimes used to refer to the union of opposites such as ying and yang or life and death. The Cheshire Cat The Cheshire cat, from Lewis Carroll’s Alice’s Adventures in Wonderland represents an intermittent, but probably significant pattern. Some people see it some of the time but it appears and disappears just when you think you might be getting a handle on it. It can also be considered as part of a transitional stage in emergence where the situation has yet to coalesce into an understandable and describable state. The Straw that Broke the Camel’s Back Every system has limits. Once those limits are reached, the system collapses. Often from the lightest touch or the smallest increment of additional load. So it is with the camel. The ‘last straw’ marks the difference between a system under stress and a system in collapse. The Boiled Frog A frog placed in a pot of hot water will notice immediately and jump out. But, a frog placed in tepid water does not notice if the heat is turned on and the water heats up slowly. A cautionary note that sometimes-slow incremental changes detrimental to survival may not register until it is too late. The Foxes and Rabbits Foxes eat rabbits and rabbits multiply quickly. In a simplified predator/prey cycle, if foxes eat too many rabbits, the population of rabbits falls and the next generation of foxes doesn’t have enough to eat and dies back. Then, with fewer foxes, the remaining rabbits multiply. The increased population of rabbits means that there is more for the foxes to eat and so it goes. Such population cycles are a good model of predator/prey relationships in nature and also in society. McCulloch’s Rat In ‘The heterarchy of nervous nets’ Warren McCulloch reported a simple experiment that proved that there was no sumum bonum that applied across the board but that preferences depended on the particular choices or their order. (Kenneth Arrow and John Nash dealt with the same issue through mathematics.) When offered a choice between food and sex, the rat chose food. When the choice was between sex and avoiding electric shock, the rat chose to avoid the shock. When food was paired with avoiding electric shock, food was the preferred choice. The Butterfly Effect One of the most striking metaphors of chaos theory is the idea that a butterfly on one side of the world can cause a storm on the other side. In other words, even very small changes in initial conditions can change outcomes in dramatic ways. Once the small variation has occurred, a process begins that leads to a chain of events that could not have been predicted. Battling Barnacles Many of us have enjoyed walking along the shore and marveling at the collection of seaweed and barnacles along the tidal pools. All looks peaceful and the only motion we see is that of the waves moving the plants and washing over the barnacles. But, if you were a researcher studying barnacles using time-lapse photography you would see a very different picture. The barnacles are banging together like cars at a dodgem ride in the amusement park, jostling for better position and pushing each other out of the way. But, their motion is too slow for us to see. Illiterate Elk In Northern Arizona, the elk population traditionally varied according to the amount of rainfall – which translated into more foliage for them to eat. In wet years more elk were born; in dry years fewer. When ranchers began to graze cattle on the land, there was always plenty of water because the ranchers pumped it up for their cows. Now, elk can’t read, so it wouldn’t have done any good for farmers to put up a sign that said “No Elk Allowed”.