While it is true that just as many different curves can be drawn through a finite number of points, consistent observations can be subsumed under various explanations. Observations regarding the role and status of literacy might result in explanations that put radically different glosses on their results, but they cannot escape confirming the sense of change defined here. This change ultimately concerns the identity humans acquire in illiterate experiences of self-constitution.

Progressively abandoning reading and writing and replacing them with other forms of communication and reception, humans participate in another structural change: from centralization to decentralization; from a centripetal model of existence and activity, with the traditional system of values as an attraction point (religious, aesthetic, moral, political values, among others) to a centrifugal model; and from a monolithic to a pluralistic model. Paradoxically, the loss of the center also means that human beings lose their central role and referential value. This results in a dramatic situation: When human creativity compensates for the limited nature of resources (minerals, energy, food supply, water, etc.), either by producing substitutes or by stimulating efficient forms of their use, the human itself becomes a disposable commodity, more so the more limited its practical self-constitution is.

Within the pragmatics characteristic of the underlying literacy, machines were changed less often; but even when changed, the human operator did not have to be replaced. A basic set of skills sufficed for lifelong activity. Engineering was concerned with artifacts as long lasting as life. The pragmatic framework of illiteracy, as one of rapid change and progressively shorter cycles, made the human more easily replaceable. At the new scale of human activity, the very large and growing commodity of human beings decreases in value: in its market value, and in its spiritual and real value. The sanctity of life gives way to the intricate technology of life maintenance, to the mechanics of existence and the body-building shops. In the stock market of spare parts, a kidney or a heart, mechanical or natural, is listed almost the same way as pork bellies and cement, van Gogh's paintings, CD players, and nuclear headscrews. They are quoted and transacted as commodities. And they support highly specialized work, compensated at the level of professional football or basketball.

Projected into and among products of short-lived destiny, the human beings working to make them project a morality of the disposable that affects their own condition and, finally, the dissolution of their values. As a result of high levels of work efficiency, there are enough resources to feed and house humankind, but not enough to support practical experiences that redeem the integrity of the individual and the dignity of human existence. Within a literate discourse, with an embedded ideology of permanency, the morality of the disposable makes for good headlines; but since it does not affect the structural conditions conducive to this morality, it soon gets lost in the many other literate commentaries, including those decrying the decline of literacy.

The broader picture to which these reflections belong includes, of course, the themes of disposable language. If basic skills, as defined by Harvard professor and Secretary of Labor Robert Reich, Massachusetts Institute of Technology economics professor Lester Thurow, and many educators and policy-makers, become less and less meaningful in the fast-changing world of work, it is easy to understand why little weight can be attached to one or another individual. Under the guise of basic skills, young and less than young workers receive an education in reading and writing that has nothing to do with the emergent practical experiences of ever shorter cycles. Companies in search of cheap labor have discovered the USA, or at least some parts of it, and achieve here efficiencies that at home, under labor laws originating from a literate pragmatics, are not attainable. Mercedes-Benz, BMW, Porsche, and many Japanese companies train their labor force in South Carolina, Mississippi, Arkansas, and other states. The usefulness of the people these companies train is almost equal to that of the machine, unless the workers are replaced by automation.

The technological cycle and the human cycle are so closely interwoven that one can predicate the hybrid nature of technology today: machines with a live component. As a matter of fact, it is interesting to notice how progressively machines no longer serve us, but how we serve them. Entirely equipped to produce high quality desktop publishing, to process data for financial transactions, to visualize scientific phenomena, such machines require that we feed the data and run the program so that a meaningful output results. In the case in which the machine might not know the difference between good and bad typography, for example, the human operator supplies the required knowledge, based on intangible factors such as style or taste.

Scale of work, scale of language

Within each framework, be that of agriculture, pre-industrial, industrial, or post- industrial practical experiences, continuity of means and methods and of semiotic processes can be easily established. What should most draw our attention are discontinuities. We are going through such a discontinuity, and the opposition between the civilization of literacy and the civilization of illiteracy is suggestive of this. Evidently, within the new practical experiences through which our own identity is constituted, this is reflected in fast dynamics of economic change. Some industries disappear overnight. Many innovative ideas become work almost as quickly, but this work has a different condition. Discontinuity goes beyond analogy and statistical inferences. It marks the qualitative change which we see embodied in the new relations between work and language.

One of the major hypotheses of this book is that discontinuities, also described in dynamic systems theory as phase shifts, occur as scale changes. Threshold values mark the emergence of new sign processes. As we have seen, practical experiences through which humans continuously ascertain their reality are affected by the scale at which they take place. Immediate tasks, such as those characteristic of direct forms of work, do not require a division into smaller tasks, a decomposition into smaller actions. The more complex the task, the more obvious the need to divide it. But it is not until the scale characteristic of our age is reached that decomposition becomes as critical as it now is. In industrial society, and in every civilization prior to it, the relation between the whole (task, goal, plan) and the parts (subtasks, partial goals, successive plans) is within the range of the human's ability to handle it. Labor division is a powerful mechanism for a divide and conquer strategy applied to tasks of growing complexity. The generation of choices, and the ability to compensate for the limited nature of resources as these affect the equation of population growth, integrate this rule of decomposition.

Literacy, itself a practical experience of not negligible complexity, helps as long as the depth of the division into smaller parts, and the breadth of the integrative travail do not go beyond litercy's own complexity. When this happens, it is obvious that even if means belonging to literacy were effective in managing very deep hierarchies in order to allow for re-integration of the parts in the desired whole, the management of such means would itself go beyond the complexity we are able to cope with. Indeed, although very powerful in many respects, when faced with many pragmatic levels independent of language, literacy (through which language attains its optimal operational power) appears flat. Actually, not only literacy appears flat, but even the much glorified human intelligence.