Conquering the past, the word gives legitimacy to explanations that presume it. Thus it implies some carrying device, i.e., a system of notation as a built-in memory and as a mechanism for associations, permutations, and substitutions. But if such a system is accepted, the origins of writing and reading are pushed back so far in time that the disjunction of literate-illiterate becomes a structural characteristic of the species at one of the periods of its self-definition. Obviously expanded far in time and seen in such a broad perspective, this notation (comprising images, the Ishango Bone, quipus, the Vinca figurines, etc.) contradicts the logocratic model of language. Mono- and polysyllabic elements of speech, embodying audible sequences of sounds (and appropriate breathing patterns that insert pauses and maintain a mechanism for synchronization), together with natural mnemonic devices (such as pebbles, knots on branches, shapes of stones, etc.) are pre-word components of pre-languages. They all correspond to the stage of direct interaction. They pertain to such a small scale of human activity that time and space can be sequenced in extension of the patterns of nature (day-night, very close-less close, etc.).
This juncture in the self-definition of the species occurred when the transition, from selected natural marks to marking, and later to stable patterns of sounds, eventually leading to words, took place. This was an impressive change that introduced a linear relation in a realm that was one of randomness or even chaos. If catastrophes occurred (as many anthropologists indicate), i.e., changes of scale outside the linear to which human beings were not adapted, they resulted in the disappearance of entire populations, or in massive displacements. Rooted in experiences belonging to what we would call natural phenomena, this change resulted in rudimentary elements of a language. New patterns of interaction were also developed: naming (by association, as in clans bearing names of animals), ordering and counting (at the beginning by pairing the counted objects, one by one, with other objects), recording regularities (of weather, sky configurations, biological cycles) as these affected the outcome of practical activities.
Scale and threshold
Already mentioned in previous pages, the concept of scale is an important parameter in human development. At this point, it is useful to elaborate on the notion since I consider scale to be critical in explaining major transitions in human pragmatics. The progression from pre-word to notation, and in our days from literacy to illiteracy is paralleled by the progression of scale. Numbers as such-how many people in a given area, how many people interacting in a particular practical experience, the longevity of people under given circumstances, the mortality rate, family size-are almost meaningless. Only when relations among numbers and circumstances can be established is some meaningful inference possible. Scale is the expression of relations.
A crude scale of life and death is remote from underlying adaptive strategies as these are embodied in practical experiences of self-constitution. Knowledge regarding biological mechanisms, such as knowledge of health or disease, supports efforts to derive models for various circumstances of life, as humans project their biological reality into the reality of interactions with the outside world. We know, for instance, that when the scale of human activity progressed to include domesticated animals, some animal diseases affecting human life and work were transmitted to humans. Domestication of animals, a very early practical experience, brought humans closer to them for longer times, thus facilitating what is called a change of host for agents of such diseases. The common cold seems to have been acquired from horses, influenza from pigs, smallpox from cattle. We also know that over time, infectious diseases affect populations that are both relatively large and stationary. The examples usually given are yellow fever or malaria and measles (the latter probably also transported from swine, where the disease is caused by the larva of the tapeworm from which the word measles is derived). Sometimes the inference is made from information on groups that until recently were, or still are, involved in practical experiences similar to those of remote stages in human history, as are the tribes of the Amazon rain forest. Isolated hunter- gatherers and populations that still forage (the !Kung San, Hadza, Pygmies) replay adaptive strategies that otherwise would be beyond our understanding. Statistical data derived from observations help improve models based only on our knowledge about biological mechanisms.
The notion of scale involves these considerations insofar as it tells us that life expectancy in different pragmatic frameworks varies drastically. The less than 30-year life expectancy (associated with high infant mortality, diseases, and dangers in the natural environment) explains the relatively stationary population of hunter-gatherers. Orders of magnitude of 20 years higher were achieved in what are called settled modes of life existing before the rise of cities (occurring at different times in Asia Minor, North Africa, the Far East, South America, and Europe). The praxis of agriculture resulted in diversified resources and is connected to the dynamics of a lower death rate, a higher birth rate, and changes in anatomy (e.g., increased height).
The hypotheses advanced by modern researchers of ancestral language families concerning the relation between their diffusion over large territories and the expanding agricultural populations is of special interest here. The so-called Neolithic Revolution brought about food production in some communities of people as opposed to reliance on searching, finding, catching or trapping (as with foragers and hunters). As conditions favored an increase in population, the nature of the relations among individuals and groups of individuals changed due to force of number. Groups broke away from the main tribe in order to acquire a living environment with less competition for resources. Alternatively, pragmatic requirements led to situations in which the number of people in a given area increased. With this increase, the nature of their relations became more complex.
What is of interest here is the direction of change and the interplay of the many variables involved in it. Definitely, one wants to know how scale and changes in practical experiences are related. Does a discovery or invention predate a change in scale, or is the new scale a result of it or of several related phenomena? Polygenetic explanations point to the many variables that affect developments as complex as those leading to discoveries of human practical experiences that result in increased populations and diversified pragmatic interactions. The major families of languages are associated, as archaeological and linguistic data prove, with places where the new pragmatic context of agriculture was established. One well documented example is that of two areas in China: the Yellow River Basin, where foxtail millet is documented, and the Yangtzi River Basin, where rice was domesticated. The Austronesian languages spread from these areas over thousands of miles beyond. We have here an interesting correlation, even if only summarily illustrated, between the nature of human experience, the scale that makes it possible, and the spread of language. Similar research bears evidence from the area called New Guinea, where cultivation of taro tubers is identified with speakers of the Papuan languages, covering large areas of territory as they searched for suitable land and encountered the opposition of foragers.
Natural abilities (such as yelling, throwing, running, plucking, breaking, bending) dominated a humankind constituted in groups and communities of reduced scale. Abilities other than natural, such as planting, cooking, herding, singing, and using tools, emerge consciously, in knowledge of the cause, when the change of scale in population and effort required efficiency levels relative to the community, impossible to achieve at the natural level. Such abilities developed very quickly. They led to the diversified means generated in practical experiences involving elements of planning (as rudimentary as it was at its beginning), reductionist strategies of survival and well-being (break a bigger problem into smaller parts, what will become the divide-and-conquer strategy), and coalition building. These involved acts of substitution, insertion, and omission, and continued with combinations of these at progressively higher levels. At a certain scale of human activity, the experience of work and the cognitive experience of storing information pertinent to work differentiated.
Do structural changes bring about a new scale, or does scale effect structural changes? The process is complex in the sense that the underlying structure of human activity is adapted to exigencies of survival fine tuned to the many factors influencing both individual and communal experiences. That scale and underlying structure are not independent results from the fact that possibilities as well as needs are reflected in scale. More individuals, with complementary skills, have a better chance to succeed in practical endeavors of increased complexity. Their needs increase, too, since these individuals bring into the experience not only their person, but also commitments outside the experience. The underlying structure embodies elements characteristic of the human endowment-itself bound to change as the individual is challenged by new circumstances of life-and elements characteristic of the nature of human relations, affecting and being affected by scale. Dynamic tensions between scale and the elements defining the underlying structure lead to changes in the pragmatic framework. Language development is just one example of such changes. Articulated speech emerged in the context of initial agricultural praxis as an extension of communication means used in hunting and food gathering. Notation and more advanced tools emerged at a later juncture. Crafts resulted from practical experiences made possible by such tools as work started to become specialized. Writing was made possible by the cognitive experiences of notation and reading (no matter how primitive the reading was). Writing emerged as practical human constitution extended to trade, to beyond the here-and-now and beyond co-presence. The underlying structure of literacy was well suited to the sequentiality characteristic of practical experiences, expression of dependencies, and deterministic processes.