Before going further, it will be helpful to consider briefly the notion that novelty per se is a fundamental human need. Experiments with human beings, as well as with animals, indicate that the maintenance of normal, successful behavior depends upon an adequate level of incoming stimulation—or, as some have put it, of novelty.2 But lumping all novelty together is misleading. At least three kinds of novelty need to be distinguished. Some novel patterns arise out of, or represent, changes in the (...) fundamental rules governing the organization of musical processes and structures. By significantly weakening our comprehension of the musical relationships presented—undermining not only our understanding of what is past but our ability to envisage what is to come—such systemic change seriously threatens our sense of psychic security and competent control. Far from being welcome, the insecurity and uncertainty thus engendered is at least as antipathetic, disturbing, and unpleasant as stimulus privation. Novel patterns may also result from the invention of a new strategy that accords with prevalent stylistic rules. Though they may initially seem to threaten existing competencies, the function and significance of novel strategies within the larger set of stylistic constraints can usually be grasped without too much delay or difficulty. For a while the tensions produced by strategic innovation may seem disturbing. But in the end, when our grasp of the principles ordering events is confirmed and our sense of competency is reestablished and control is reinforced, tension is resolved into an elation that is both stimulating and enjoyable. Most novel patterns—original themes, rhythms, harmonic progressions, and so forth—involve the innovative instantiation or realization of an existing strategy or schema .3 Novelties of this kind not only enhance our sense of control—a feeling that we know how things really “work”—but provide both the pleasure of recognition and the joy of skillfully exercising some competency. We enjoy novelty—the stimulation of surprise, the tension of uncertainty—as long as it can be accommodated within a known and understandable set of constraints. When the rules governing the game are abrogated or in doubt—when comprehension and control are threatened—the result is usually anger, anguish, and desperation.These responses to novelty are consequences of fundamental and poignant verities of the human condition: the centrality of choice in human behavior. Because only a minute fraction of human behavior seems to be genetically specified, choice is inescapable.While in lower organisms, behavior is strictly determined by the genetic program, in complex metazoa the genetic program becomes less constraining, more “open” as Ernst Mayr puts it, in the sense that it does not lay down behavioral instructions in great detail but rather permits some choice and allows for a certain freedom of response. Instead of imposing rigid prescriptions, it provides the organism with potentialities and capacities. This openness of the genetic program increases with evolution and culminates in mankind.4The price of freedom is the imperative of choice. Human beings must choose were to sow and when to reap, when to work and where to live, when to play and what to build. Intelligent, successful choices are possible only if alternative courses of action can be imagined and their consequences envisaged with reasonable accuracy. 2. For further discussion, see my Music, the Arts, and Ideas , p. 50.3. Rules are transpersonal but intracultural constraints—for instance, the pitch/time entities established in some style, as well as grammatical and syntactic regularities. Strategies are general means for actualizing some of the possibilities that are potential in the rules of the style. The rules of a style are relatively few, while the number of possible strategies may, depending upon the nature of the rules, be very large indeed. The ways of instantiating a particular strategy are, if not infinite, at least beyond reckoning.4. François Jacob, The Possible and the Actual , p. 61. See also Stephen Jay Gould, Ever Since Darwin , p. 257. (shrink)

This article discusses the contribution to evolutionary theory of Leonard Darwin, the eighth child of Charles Darwin. By analysing the correspondence Leonard Darwin maintained with Ronald Aylmer Fisher in conjunction with an assessment of his books and other written works between the 1910s and 1930s, this article argues for a more prominent role played by him than the previously recognised in the literature as an informal mentor of Fisher. The paper discusses Leonard’s efforts to (...) amalgamate Mendelism with both Eugenics and Darwinism in order for the first to base their policies on new scientific developments and to help the second in finding a target for natural selection. Without a formal qualification in biological sciences and as such mistrusted by some “formal” scientists, Leonard Darwin engaged with key themes of Darwinism such as mimicry, the role of mutations on speciation and the process of genetic variability, arriving at important conclusions concerning the usefulness of Mendelian genetics for his father’s theory. (shrink)