Predictability  

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The Birth of Venus (detail), a 1486 painting by Sandro Botticelli
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The Birth of Venus (detail), a 1486 painting by Sandro Botticelli

Predictability (also called banality) refers to the degree that a correct forecast of a system's state can be made either qualitatively or quantitatively. While the second law of thermodynamics can tell us about the equilibrium state that a system will evolve to, and steady states in dissipative systems can sometimes be predicted, there exists no general rule to predict the time evolution of systems far from equilibrium, etc. chaotic systems, if they do not approach some kind of equilibrium. Their predictability usually deteriorates with time. To quantify predictability, the rate of divergence of system trajectories in phase space can be measured (Kolmogorov-Sinai entropy, Lyapunov exponents).




Unless indicated otherwise, the text in this article is either based on Wikipedia article "Predictability" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on original research by Jahsonic and friends. See Art and Popular Culture's copyright notice.

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