[The Second Law of Thermodynamics] has been simply summarized as follows: "The more complex a structure, the more energy it must dissipate to maintain all that complexity. This flux of energy make the system highly unstable, subject to internal fluctuations -- and sudden change. If these fluctuations or perturbations reach a critical size, they are amplified by the system's many connections and can drive the system into a new state -- even more ordered, coherent, and connected. The new state occurs as a sudden shift."
~Ilya Prigogine, Nobel Prize Winner, quoted in The Possible Human by Jean Houston.
Picture found here.