How The Voice Gets Added to Hand-Talk In Human Evolution, Part A1 (Part 17 of 23)
0154 What a banner!
0155 The evolutionary anthropologist, Steven Mithen, publishes a book in 2024 with the full title, The Language Puzzle: Piecing Together The Six-Million Year Story Of How Words Evolve (BasicBooks: New York). The book purports to describe the evolution of “language”. But, what is “language”? Is language the sole province of speech? Of course not, deaf communities practice so-called “sign-language”. I call this practice, “fully linguistic hand-talk”.
0156 Despite the reality that language can be performed in two modalities, manual-brachial gesture and voice, Mithen rules out the gestural origins of language. Consequently, he faces the challenge of portraying the vocal origins of language.
0157 The problem?
Consider the following comparison.

0158 Two features are integral to language.
The first is displacement. “Displacement” means that “the referent of the word does not have to be present”.
The second is symbolic operations. Symbols are sign-relations whose sign-objects are based on habit, convention, law and so forth. Within any symbolic order, a symbol must be sufficiently different from any other symbol as to be readily recognized. A finite set of symbols constitutes a symbolic order. Symbolic operations constellate within a symbolic order. One name for such symbolic operations is “grammar”.
0159 Archaeological evidence for bipedalism predates 3.5 Myr (million of years ago). At this time, vocalizations are not only involuntary, but they tell everyone that a referent is present. It is the opposite of displacement. Vocalizations denote placements.
Of course, that means that involuntary calls may be labeled indexes, in so far as the call indicates a presence. That means that involuntary calls are indexes.
But, an involuntary call cannot be called a linguistic sign-relation whose sign object is determined by pointing, contiguity, cause and effect and so forth. And, that is an index, too.
0161 Okay, that may be confusing.
Vocal calls are indexes in the same way that an emergency alarm is an index. The alarm cannot tell me much more than “an emergency is happening”. That is not displacement.
Manual-brachial gestures can point to something, even when that something is not present (like the location of the sunrise). Manual-brachial word gestures allow displacement.
0162 In regards to symbolic operations, consider taking the metaphor, a word is like a piece in a jigsaw puzzle,literally. Then, say, 1.7 million years before present time, while I am digging tubers with my team, not far from the forest’s edge, a vulture lands in a nearby tree and one of us notices that… uh oh… there is a jaguar in that tree. The vulture sees the jaguar. The jaguar eyes the little hominins. We know why the vulture decides to land. The vulture wants to see what happens.
Everyone gathers what tubers they have into leaf-baskets. The elder of the team signs the following gestures to me and I reply.

0163 Elder signs [point-YOU][image-RUN][point-RIGHT][image-THROW].
Then in reply, I say, [point-ME][raise ROCK].
0164 Each iconic and indexal gesture-word has already been honed through usage to be sufficiently different from any other word-gesture (in our team-oriented lexicon) as to be instantly recognized. So, the imagery and the indications snap together into one Gestalt, shared by both elder and myself.
Of course, Mithen discusses displacement and grammar, but not in this manner. He proposes that displacement for the vocal channel involves synaesthesia, that is, cross-modal sensing. But, how would this apply to the problems faced by teams, while extracting food under dangerous conditions (which Michael Tomasello labels “collaborative obligatory foraging”)?
0165 So, what is the key point?
Mithen claims to be solving a six-million year old process. But, his metaphor of the jigsaw puzzle, when taken literally, takes us through the period that stretches from the start of bipedalism to the domestication of fire. This corresponds to Michael Tomasello’s “period two”.
Indeed, Mithen is not aware that his choice of metaphors undermines his claim against the gestural origin of language.
0166 Is that sort of funny?
In what way?
Technically, before the domestication of fire, hand-talk is protolinguistic. Each team has its own protolanguage. Plus, this protolanguage is not fully linguistic because it does not permit grammatically correct counter-intuitive statements, such as:
[imageTREE][point to EYES][roll EYEs back and forth]
0167 Oh, yes. Our kind evolves in a surveillance society. And we are on the menu.
The trees have eyes and are watching.