‘Fractals—an Organized Chaos’ First Reading Reflection Self-Organization in Systems and Society (STSH 4580) Tyler Carrara March 3rd, 2014 RIN: 661181672 ‘Fractals—an Organized Chaos’ Self-organization is a phenomenon of which little is known, yet its presence can be found affecting all areas of science. What is known is that this peculiar concept relies on a vital set of rules unanimously obeyed by the individuals within the system for direction, contrasting sharply with the idea of group reliance on a central-governing leader of who makes every crucial decision. Varying degrees of complexity exist within each self-organizing system as do multiple methods of measuring complexity. While it is currently possible to measure complexity with relative accuracy, debate consistently arises among researchers as to which method should be accepted as the standard method of measurement. In higher-level mathematics, fractals display self-similar patterns that correlate significantly with the self-organization frequently found in organic environments. The uniqueness associated with fractals is the product of exceedingly complex shapes being extracted from a simple set of rules and a simple initial geometric figure. These derived intricate figures not only offer a potential method of measuring complexity, but can mimic certain organic systems in which selforganization has been observed. While Euclidean shapes represent perfect order and fractals represent a perfect balance of order and disorder, the term chaos theory introduces pure disorder into the equation. Chaos theory is the idea that a dynamic system is extremely sensitive to initial conditions which causes it to be nearly unpredictable. Strange attractors allow such predictions to be made as the fractal-like attractors reveal the behavior of chaos only in the immediate future. A balance between order and disorder in self-organizing systems is required, for without one factor the systems cease to function effectively. Self-organizing systems appear in many different forms throughout the world. Army Ants on the march, neurons firing in the brain, a synchronized flock of European Starlings, the coordination of the human immune system, and Bigeye Trevally spherical ‘Tornados’ all demonstrate characteristics of self-organization in which no single entity of the system leads entirely. Members that are part of a such a system when isolated fail to complete the simplest of tasks and quickly become obsolete, “yet put half a million of them together, and the group as a whole becomes what some have called a ‘superorganism’ with ‘collective intelligence’” (Mitchell 3). The description of a ‘superorganism’ with ‘collective intelligence’ closely resembles that of the neurons in our brain which when isolated have little to no impact but when firing collectively create an anomaly that humans refer to as ‘consciousness’. The human immune system miraculously “employs randomness to allow each individual lymphocyte to recognize a range of shapes that differs from the range recognized by other lymphocytes in the population” (174). Depending on which lymphocytes survive an encounter with an antigen, more of that lymphocyte is produced by the lymph nodes. This defensive stance is similar to that of the Bigeye Trevally ‘Tornado’ which aims to form a sphere as a sphere is optimized to have the least amount of surface area mathematically. This decreases the odds of an individual Bigeye Trevally being consumed by a predator. Naturally occurring self-organizing systems may vary in complexity significantly, yet no widely accepted standard method of measurement for complexity presently exists. Complexity must first be defined if it is to be analyzed. Nobel prize-winning physicist “GellMann proposed that any given entity is composed of a combination of regularity and randomness… the effective complexity is defined as the amount of information contained in that description, or equivalently, the algorithmic information content of the set of regularities” (Mitchell 99). Selforganizing systems are composed of both order and disorder. The flock of European Starlings demonstrates order by flying as one dense group through the sky with each individual flying in the same relative direction. Disorders exists within the mass of European Starlings as well, the direction in which the entire mass moves consistently changes and is unpredictable along with the position of each individual within the flock. Logical depth is widely considered another potential way of measuring complexity, where “the logical depth of an object is a measure of how difficult that object is to construct” (100). What is accepted by most researchers studying self-organizing systems is that “both very ordered and very random entities have low effective complexity” (99). A balance of these two factors allows for predictability and unpredictability, this fundamental idea can be related to music. If a person is listening to a radio and suddenly a song comes on that plays one note at a set interval, the person listening to the music would grow increasingly bored; the music’s pattern is too simple and predictable. The same person switches the station and the radio begins to emit whitenoise or static, the person listening becomes bored yet again; this is due to the complete randomness of the noise in that it contains no differentiable pattern. Desirable music has varying levels of complexity in which order and disorder attempt to counter one another, the same theory applies to self-organizing systems. Geometric mathematical models that associate with this balance of order and disorder are referred to as fractals. A classic way of describing a fractal is by imagining a coastline: If you view a coastline from an airplane, it typically looks rugged rather than straight, with many inlets, bays, prominences, and peninsulas. If you then view the same coastline from your car on the coast highway, it still appears to have the exact same kind of ruggedness, but on a smaller scale… The similarity of the shape of the coastline at different scales is called ‘self-similarity.’ (Mitchell 103) Natural fractals include but are not limited to coastlines, trees, snowflakes, and galaxy clusters. The concept of a fractal dimension is to relate the complexity associated with fractals to that of the complexity associated with self-organizing systems in an attempt to measure the intricacies of the self-organizing systems. A fractal dimension is not an integer, yet ultimately aims to quantify “the number of copies of a self-similar object at each level of magnification of that object. Equivalently, fractal dimension quantifies how the total size (or area, or volume) of an object will change as the magnification level changes” (108). Another way of describing what a fractal dimension represents is the “‘roughness,’ ‘ruggedness,’ ‘jaggedness,’ or ‘complicatedness’ of an object… quantifies the ‘cascade of detail’ in an object” (108). Fractals maintain details continuously at every level of magnification; the fractal dimension effectively quantifies how interesting that detail is as a function of the net magnification required at each level to observe it. Only perfect mathematically derived fractals—fractals that extend to infinity after undergoing magnification—have a precise fractal dimension. Natural and finite fractal-like systems can only be measured for an approximate fractal dimension. Euclidean geometries attempt to portray matter in an ordered state and can be described as simple in appearance containing an abundance of distinct edges that meet at clearly defined vertices, contrasting sharply with the silhouette of a fractal. Euclidean geometries are frequently constructed of clearly defined patterns that can be easily recognized and predicted. Crystals are a perfect example of naturally occurring Euclidean geometries while skyscrapers can be referred to as artificially created Euclidean geometries. The root figure of any given fractal is usually a type of Euclidean geometry, yet as the figure undergoes transformations each phase becomes increasingly complex until a fractal has been created. Upon first glance a fractal may appear to be disordered and random, but having been defined from a Euclidean geometry a complex algorithm does exist. This algorithm can be applied to self-organizing systems with the goal of defining any underlying complexity—the fractal dimension. While Euclidean geometries contribute to the ordered aspect of fractals, chaos theory adds to the disorder of fractals. Chaos theory is relevant to systems—self-organizing systems—that react in accordance with their initial conditions. Chaos theory focuses on “the behavior of dynamical systems that are highly sensitive to initial conditions—an effect which is popularly referred to as the butterfly effect” (Kellert 32). The ‘butterfly effect’ is described in the following explanation In chaos theory, the butterfly effect is the sensitive dependency on initial conditions in which a small change at one place in a deterministic nonlinear system can result in large differences in a later state. The name of the effect, coined by Edward Lorenz, is derived from the theoretical example of a hurricane's formation being contingent on whether or n ot a distant butterfly had flapped its wings several weeks earlier. (Woods 118) This explanation applies to fractals and thus self-organizing systems alike. If an initial condition is altered the new fractal produced is completely different; regardless of whether or not the initial condition affected is the set of rules that governs the phase transformations or is the starting Euclidean geometry. An attractor is a term that describes a “set of physical properties toward which a system tends to evolve, regardless of the starting conditions of the system. Property values that get close enough to the attractor values remain close even if slightly disturbed” (Attractor). An attractor is referred to as ‘strange’ if it contains a fractal structure. This is often the case when the dynamics pertaining to it are chaotic. Even though strange attractors are associated with chaos, the attractors contain a fractal dimension of which is calculable. Numerical analysis of the double-scroll attractor and the famous Lorenz attractor has shown that geometrical structure of strange attractors is made up of an infinite number of fractal-like layers. Even though fractals originate from simple Euclidean geometries and pre-defined transformation rules, their concept can be applied to dynamic systems incorporating varying amounts of chaos. Self-organizing systems are composed of both order and disorder. If one aspect weighs too heavily, the balance is lost and the pattern either becomes too simple or too random. In selforganizing systems, order exists within the simplicity of initial Euclidean geometries and their transformation rules while disorder presents itself in the form of strange attractors found under the topic known as chaos theory. This order and disorder combined produces the intricate mathematical figures termed fractals. These fractals may appear to be disordered upon first glance, but prove to contain an underlying pattern after magnification. It is this pattern’s complexity which can be quantified through fractal dimensioning and logical depth. With varying amounts of complexity being approximated in separate self-organizing systems, the chaotic component may be potentially increasing the systems’ complexity while hindering its predictability. Excellent work—I would have said something about phase space regarding your line “An attractor is referred to as ‘strange’ if it contains a fractal structure”. Grade = A Citations: "Attractor." The Free Dictionary. Farlex, n.d. Web. 07 Mar. 2014. Kellert, Stephen H. (1993). In the Wake of Chaos: Unpredictable Order in Dynamical Systems. University of Chicago Press. Page 32. ISBN 0-226-42976-8. Mitchell, Melanie. Complexity: A Guided Tour. Oxford: Oxford UP, 2009. Print. Woods, Austin (2005). Medium-Range Weather Prediction: The European Approach; The Story of the European Centre for Medium-Range Weather Forecasts. New York: Springer. Page 118. ISBN 978-0387269283.