Signs, through which pre-verbal human beings projected their reality in the context of their existence, expressed through their energy and plasticity what humans were. Signs captured what was perceived as alike in others, objects or beings, and likeness became the shared part of signs. This was a time of direct interaction and immediateness, a time of action and reaction. Everything delayed or unexpected constituted the realm of the unknown, of mystery. The scale of life was reduced. All events were of limited steps and limited duration. Interacting individuals constituted themselves as signs of presence, that is, of a shared space and time. Signs could thus refer to here and now as immediate instantiations of duration, proximity, interval, etc., but long before the notions of space and time were formed. Once distinctions were projected in the experience of signs, the absent or the coming could be suggested, and the dynamics of repetitive events could be expressed. It was only after this self- expression took place that a representational function became possible: a high-pitched cry not just for pain, but also for danger that might cause pain; an arm raised not only as an indication of firm presence, but also of requested attention; a color applied on the skin not only as an expression of pleasure in using a fruit or a plant, but also of anticipated similar pleasures-an instruction to be mimetically followed, to be imitated.

Being part of the expressed, the individuals projecting themselves in the expression also projected a certain experience related to the limited world they lived in. Signs standing for associations of events (clouds with rain, noise of hooves with animals, bubbles on a lake's surface with fish) were probably as much representations of those sequences as an expression of constituted experience shared with others living in the same environment. Sharing experience beyond the here and now, in other words, transition from direct and unreflected to indirect and reflected interaction, is the next cognitive step. It took place once shared signs were associated with shared common experiences and with rules of generating new signs that could report on new, similar, or dissimilar experiences. Each sign is a biological witness to the process in which it was constituted and of the scale of the experience. A whisper addresses one other person, maybe two, very close to each other. A shout corresponds to a different scale. Accordingly, each sign is its shorthand history and a bridge from the natural to the cultural.

Sequences, such as successions of sounds or verbal utterances, or configurations of signs, such as drawings, testify to a higher cognitive level. Relations between sequences or configurations of signs and the practical experience in which they are constituted are less intuitive. To derive from the understanding of such sign relations some practical rules of significance to those sharing a sign system was an experience in human interaction. Later in time, the immediate experiential component is present only indirectly in language. The constitution of the language is the result of the change of focus from signs to relations among them. Grammar, in its most primitive condition, was not about how signs are put together (syntax), nor of how signs represent something (semantics), but of the circumstances determining new signs to be constituted in a manner preserving their experiential quality-the pragmatics.

Consequently, language was constituted as an intermediary between stabilized experience (repetitive patterns of work and interaction) and future (patterns broken). Signs still preserved the concreteness of the event that triggered their constitution. In the use of language, the human being abandoned a great deal of individual projection. Language's degree of generality became far higher than that of its components (signs themselves), or of any other signs. But even at the level of language, the characteristic function of this sign system was the constitution of practical experiences, not the representation of means for sharing categories of experiences. In each sign, and more so in each language, the biological and the artificial collide. When the biological element dominates, sign experiences take place as reactions. When the cultural dominates, the sign or language experience becomes an interpretation, i.e., a continuation of the semiotic experience. Interpretation of any kind corresponds to the never-ending differentiation from the biological and is representative of the constitution of culture. Under the name culture as used above, we understand human nature and its objectification in products, organizations, ideas, attitudes, values, artifacts.

The practical experience of sign constitution-from the use of branches, rocks, and fur to the most primitive etchings (on stone, bone, and wood), from the use of sounds and gestures to articulated language-contributed to successive changes in ongoing activity (hunting, seeking shelter, collaborative efforts), as well as to changes in humans themselves. In the universe of rich detail in which humans affirmed their identity through fighting for resources and creatively finding alternatives, information did not change, but the awareness of the practical implications of details increased. Each observation made in the appropriation of knowledge through its use in work triggered possible patterns of interaction.

Once signs were constituted, sharing in the experience became possible. Genetic transmission of information was relatively slow. It dominated the initial phases during which the species introduced its own patterns within the patterns of the natural environment. Semiotic transmission of information, in particular through language, is much faster than genetic inheritance but cannot replace it. Human life is attested at roughly 2.5 million years ago, incipient language use roughly 200,000 years ago. Agriculture as a patterned experience emerged no more than 19,000 years ago, and writing less than 5,000 years ago (although some researchers estimate 10,000 years). The shorter and shorter cycles characteristic of self-constitution correspond to the involvement of means other than genetic in the process of change. What today we call mental skills are the result of a rather compressed process. Compare the time it took until motor skills involved in hunting, gathering, and foraging were perfected to the extent they were before they started to degenerate, relatively speaking, as we notice in our days.

The first record is a whip

Signs can be recorded-quite a few were recorded in and on various materials- and so can language, as we all know. But language did not start out as a written system. The African Ishango Bone predates a writing system by some thousands of years; the quipus of the Inca culture are a sui generis record of people, animals, and goods previous to writing. China and Japan, as well as India, have similar pre-writing forms of keeping records.

The polygenetic emergence of writing is, in itself, significant in several ways. For one, it introduced another mediating element disassociated from a particular speaker. Second, it constituted a level of generality higher than that of the verbal expression that was independent of time and space, or of other forms of record keeping. Third, everything projected into signs, and from signs into articulated language, participated in the formation of meaning as the result of the understanding of language through its use. Only at that moment did language gain a semantic and syntactic dimension (as we call them in today's terminology).

Formally, if the issue of literacy and the constitution of languages are connected, then this connection started with written languages. Nevertheless, events preceding written language give us the perspective of what made writing necessary, and why some cultures never developed a written language. Although referring to a different time-frame (thousands of years ago), this could help us comprehend why writing and reading need not dominate life and work today and in the future. Or at least it could help clarify the relation among human beings, their language, and their existence. After all, this is what we want to understand from the vantage point of today's world. We take the word for granted, wondering whether there was a stage of the wordless human being (about which we can only infer indirectly). But once the word was established, with the advent of the means for recording it, it affected not only the future, but also the perception of the past.