01/18/24

Looking at Michael Tomasello’s Book (1999) “The Cultural Origins of Human Cognition” (Part 12 of 12)

0072 Chapter five is titled, “Linguistic Construction and Event Cognition”. The perspective-level linguistic communication_2c participates in ongoing events_2a.

Tomasello claims that joint attention is the key adaptation from which subsequent adaptations proceed. Surely, the three-level interscope depicted above does not contradict this claim.

After all, the evolution of joint attention should precede the evolution of linguistic communication.

0073 However, there is a disjunction, because great apes show few (if any) tendencies that may be characterized by joint attention. Even the occasional monkey hunt by chimpanzees is best characterized by several individuals deciding to pursue the same thing at the same time. The monkey-prey is the focus of attention, but the attention is disjointed, not really coordinated.

So, there must be a period before the evolution of joint attention, where individual intentionality reigns, even when group action takes place.

0074 So, when are these eras happening?

Tomasello wants to place the evolution of joint attention before the time of Homo heidelbergensis, who appears in the fossil record between 800 and 400kyr (thousands of years ago).

To me, this makes sense only so far as this.

Homo heidelbergensis leaves traces of cultural behavior in the archeological record.

To me, such traces indicate that these hominins are in the subsequent build-on era.

So, Tomasello’s timeline may require clarification.

0075 Okay, now that I am nitpicking, I must ask, “Is there a problem with making joint attention_2a the foundation of an evolutionary theory?”

Allow me to return to Tomasello’s vision.

0076 According to Comments on Dennis Venema and Scot McKnight’s Book (2017) Adam and the Genome (by Razie Mah, available at smashwords and other e-book venues), adaptation₂ and phenotype₂ belong to two independent scientific disciplines: natural history and genetics. Since both belong to situation-level nested forms that rely on different potentials, one cannot situate or contextualize the other. However, this is precisely what occurs in Tomasello’s vision.

Of course, Tomasello’s vision remains a breakthrough in the framework of modern science. At least, the phenotype does not correspond to the adaptation. Instead, the phenotype_2c puts culture_2b into perspective. Then, culture_2b virtually situates the adaptation of joint attention_2a.

Yes, to repeat, the phenotype_2c does not directly situate the adaptation_2a. Tomasello’s vision leads upwards from joint attention_2a to human culture_2b and then to human cognitive development_2c. Cognitive development_2c puts culture_2b into perspective, just as culture_2b virtually situates joint attention_2a.

Tomasello’s vision is truly remarkable.

0077 And, it is difficult to achieve.

This book is the start of a twenty year journey.

0078 As noted in points 0055 through 0058, the last few chapters cover the cultural (situation) and ontogenetic (perspective) levels of Tomasello’s vision. As far as I can see, these chapters labor to show how human ontogeny_2c (the scientific study of human development) virtually contextualizes human culture_2b (a somewhat vaguely defined term that refers to all situations where joint attention_2a pertains). In the process, Tomasello must also explain how human culture_2b, especially spoken language and symbolic representation, virtually emerges from and situates joint attention_2a.

How ambitious is that?

0079 Here a picture of the virtual nested form in the realm of actuality (the vertical column in secondness in Tomasello’s vision, portrayed as a nested form).

The normal context of the behavior of newborns and infants_2c virtually brings the actuality of spoken language and symbolic representation_2b into the potential of a foundational adaptation_2a.

0080 Yes, this is very ambitious, and the final three chapters of this book strain to meet the challenge. They should be read with this in mind. The last three chapters are well composed. Tomasello is an excellent writer. He is very organized. But, his exposition is like lifting a two-hundred pound octopus out of the water. As soon as one arm is lifted, a different one slides back into the murk.

0081 Plus, there is the lingering issue of natural history.

Here is a picture with Tomasello’s guesses.

Tomasello makes two associations that make no sense at all, when considering joint attention_2b as an adaptation to sociogenesis_1b in the normal context of natural selection_3b. Sociogenesis_1b is the human niche_1b. The human niche_1b is the potential_1b of triadic relations_2a. Consequently, the adaptation of joint attention_2a should be marked in the archaeological record with the appearance of the Homo genus, around 1.8Myr (millions of years ago).

0082 With that in mind, I close this examination of the first step in Tomasello’s journey, scientifically exploring who we are. The next step is a book that expands and clarifies this first step. It is published nine years later.

01/17/24

Looking at Michael Tomasello’s Book (2008) “Origins of Human Communication” (Part 1 of 12)

0083 In 2008 AD, Michael Tomasello, then co-director of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, publishes the work before me (MIT Press, Cambridge, Massachusetts).

This book is the second marker in Tomasello’s intellectual journey. I start following his journey with Looking at Michael Tomasello’s Book (1999) “The Cultural Origins of Human Cognition” (appearing in Razie Mah’s January 2024 blog). That is the first marker.

0084 The second marker starts as an academic presentation in 2006. His Jean Nicod Lectures, in Paris, concerns his work on great ape gestural communication, human infant gestural communication and human children’s language development. These lectures attempt to construct one coherent account of the evolution of hominin communication.

Oh, that terminology. Where Tomasello inscribes, “human”, I say, “hominin”.

0085 From my examination at the first marker, I already have a guess about Tomasello’s vision.

Here is a picture.

0086 Note that the titles of the levels have changed.

Also note that human ontogeny_2c or models of child development currently built by psychologists_2c, associates to phenotypes and genetics. Joint attention_2a or models in evolutionary psychology concerning hominin cognition_2a,associates to adaptations and natural history.

0087 Tomasello uses the word, “origins”, in his title. Does this suppose that human communication may be regarded as a phenotypic trait or as an adaptation? Or maybe, the conjunction is “and”.

In the above figure, I get the idea that the phenotype virtually contextualizes the adaptation. But, that is not really the case. The phenotype_2b virtually situates a species’ or individual’s DNA_2a.

Here is a diagram.

0088 Not surprisingly, this diagram in genetics has the same two-level relational structure as Darwin’s paradigm for natural history.

0089 What does this imply?

A mystery stands at the heart of evolutionary biology.

The adaptation is not the same as the phenotype.

Yet, together, they constitute a single actuality, which may be labeled a genus, a species or an individual.

Two category-based nested forms intersect in the realm of actuality. It is like two streets that meet. The intersection is constituted by both streets. As far as traffic goes, intersections are sites of dangerous contradictions. Traffic from one street should not collide with traffic from the other street. I suppose that the intersection of adaptation and phenotypecarries irreconcilable contradictions as well.

0090 Perhaps, Tomasello’s vision may be resolved by considering both joint attention_2a and human ontogeny_2c as adaptations, even though the latter is technically, phenotypic.

I suggest this because selection is the normal context for all three levels in Tomasello’s vision. Since natural selection goes with adaptation, the vision is one of natural history.

0091 That implies that the potentials for all three levels are like niches.

Human ontogeny_2c is an adaptation that emerges from and situates the potential of human culture_2b, where human culture_2b is like an actuality independent of the adapting species of individuals undergoing development_3c.

Human culture_2b is like an adaptation that emerges from and situates the potential of joint attention_2a, where joint attention_2a is like an actuality independent of the adapting ways of doing things_3b.

Joint attention_2a is like an adaptation that emerges from and situates sociogenesis_1a, where sociogenesis_1a is the potential of… what?… I have run out of actualities independent of the adapting species.

0092 Here is where the foundational Tomasello-Mah synthesis enters the picture.

Ah, so here is a problem.

Tomasello’s vision of the origins of human communication conceals the actuality underlying sociogenesis_1a, the potential_1a giving rise to joint attention_2a. The human niche is the potential of triadic relations.

0093 What about the subscripts in the preceding paragraph?

They belong to Tomasello’s vision.

0094 This subscript business can be confusing.

To me, the concealment in Tomasello’s vision is not necessarily a drawback. Rather, it presents an opportunity to re-articulate Tomasello’s arc of inquiry using the category-based nested form and other triadic relations.

0095 In the prior series of blogs, examining a book published in 1999, I introduced an interscope for the way humans think that derives from work by medieval schoolmen, the so-called “scholastics” of the Latin Age.

Here is a picture of the scholastic version of how humans think, packaged as a three level interscope.

01/16/24

Looking at Michael Tomasello’s Book (2008) “Origins of Human Communication” (Part 2 of 12)

0096 Now, I attend to the book before me. Right away, I suggest that the reader look at chapter seven. Tomasello is very organized. The final chapter provides an awesome summary of the entire book.

0097 In chapter one, the author proposes three interlocking hypotheses about the origins of human communication.

First, human cooperative manual-brachial gestures evolve initially in the domain of pantomime and pointing.

Second, this evolution is potentiated by skills and motivations devoted to sharing intentions in the context of collaborative activities.

Third, once the second point is in place, linguistic conventions evolve.

0098 Here is a list.

0099 To start, Tomasello notes that all four species of great apes, who are presumably closer in character to our last common ancestor than we are, learn and use manual gestures in flexible ways. In contrast, vocalizations are unlearned and inflexible. These observations support the first hypothesis.

Next, Tomasello argues that the path from (situation-revealing) ape vocalizations to (content-revealing) human speech-alone talk is untenable. The hominin capacity for language starts with manual-brachial gestures and ends with speech-alone talking civilizations.

0100 So, there must be a twist in human evolution.

Notably, these are also key claims in Razie Mah’s three masterworks, The Human Niche, An Archaeology of the Fall and How To Define the Word “Religion” (available at smashwords and other e-book venues).

0101 So, what is this business about “shared intentions”?

How do manual-brachial gestures accomplish that?

Consider the dog. Dogs adapt into the niche of humans sharing intentions. They read human body language. In a simple experiment, I stand on the other side of a low table with two overturned bowls. If I look at one one bowl, the dog will sense that this is the bowl that hides the treat. My dog and I share a common conceptual ground. She knows that I give information to her for her benefit, rather than my own. She would be very upset if I gazed at the wrong bowl, and, when she overturned it and found nothing, saw me reaching under the ungazed bowl and stealing her treat.

Is sharing food the foundation for shared intentionality?

In captivity, one ape may assist a second ape in getting food, even when that food will not be available to the first ape. That is the type of game that cognitive psychologists design.

0102 But, hominins do not evolve in captivity.

In the wild, shared intentionality proves very helpful.

Imagine that I notice that my compatriot does not see a snake nearby in the grass. If I could gesture a motion that looks like the motion of a snake then point to it, that would be far better than sharing food. In hand talk, I could say, “[WIGGLE HAND] [POINT to snake].” Over time, the manual-brachial pantomime becomes routinized as the hand-talk word, [SNAKE].

0103 Here is a picture.

0104 In order for my gestural action to become a content-level actuality_2a, the other hominin must presume that his impression of this actuality_2a occurs in the normal context of what is happening_3a and holds the potential of ‘something’ happening’_1a.

My domesticated dog knows this.

But, what of my compatriot from 3Myr (millions of years ago)?

0105 Ah, that is why Tomasello’s label of “shared intentionality” is so evocative.

The “shared” goes with the normal context of what is happening_3a.

The “intentionality” goes with the potential of ‘something happening’_1a.

0106 My gestural action changes my friend’s impressions.

If I do not share, then I intend for my friend to get a snakebite.

In Christian parlance, this is called “a sin of omission”.

In the parlance of natural history, this is called “natural selection”.

The problem is that part of me dies when my friend succumbs to the toxic injection.

01/15/24

Looking at Michael Tomasello’s Book (2008) “Origins of Human Communication” (Part 3 of 12)

0107 Yes, Tomasello’s term, “shared intentionality”, is more than about food. Any dog will tell you this. Domestication has a multitude of rewards.

Now, I examine the role of the bipedal ape near the snake.

0108 Yes, the affordance of my friend’s warning is valuable for me (and my reproductive success).

According to Comments on John Deely’s Book (1994) New Beginnings (available at smashwords and other e-book venues), this two level interscope harbors a sign. The scholastics call this sign, “specificative extrinsic formal causality”. I call it “a specifying sign”.

0109 According to Peirce, a sign-relation consists of three elements: a sign-interpretant (SI), a sign-object (SO) and a sign-vehicle (SV). Unlike the category-based nested form, there is no simple assignment of categories to each element. The reason is obvious. Both the sign-object and the sign-vehicle belong to secondness, the realm of actuality. That leaves the sign-interpretant as… um… belonging to both thirdness, the realm of normal context, and firstness, the realm of potential.

The above two-level interscope offers a frame for these odd assignments.

The following figure includes the three elements of a sign-relation.

The subscript, “s”, denotes specifying sign.

0110 In terms of the specifying sign-relation, my friend’s hand talk, “[SNAKE] [THERE]_2a” (SV_s) stands for an immediate need to avoid danger_2b (SO_s) in regards to what it means to me_3a operating on the potential of encountering a snake_1b (SI_s).

0111 This only works when both me (the one near the snake) and my teammate (the one pointing out the danger) share the same content-level category-based nested form.

How do we know what is happening_3a and the potential of ‘something’ happening_1a without a method to arrive at a common ground?

This is a very good question.

01/13/24

Looking at Michael Tomasello’s Book (2008) “Origins of Human Communication” (Part 4 of 12)

0112 Chapter three of Tomasello’s book concerns intentional communication among great apes.

There are two broad types of significant gestures: intentional movements and attention getters.

0113 A fun example consists of one young chimpanzee raising an arm while approaching another youngster. This is a specifying sign-vehicle (SV_s). The sign-object (SO_s) says, “Let’s play!”

0114 Here is the specifying sign.

0115 Do chimpanzee youngsters already know this sign?

I ask because I cannot figure how the youngsters already sense what is happening_3a or the potential of ‘something happening_1a, upon the occurrence of the raised arm gesture_2a.

I can only conclude that what is happening_3a and the potential of ‘something happening’_1a are the sign-interpretant of another sign and the sign-object of that sign is the raised arm.

In order to imagine this, a perspective-level actuality_2c is needed.

0116 Here is a picture, using the scholastic three-level interscope for how humans think.

0117 I don’t know whether scholastics have a formal causality for this sign-relation. But, I call it “the interventional sign”. The interventional sign is odd in so far as the actuality of the sign-vehicle_2c is mental and the actuality of the sign-object_2a is a gestural action.

It makes me wonder, is the raised arm of a young, playful, chimpanzee the sign-vehicle of the specifying sign or the sign-object of the interventional sign?

Oh, the answer is obvious.

It_2a must be both.

This is the conclusion found in Looking at Daniel Dennett’s Book (2017) “From Bacteria, To Bach and Back” in Razie Mah’s blog for December 2023.

0118 Surely, the intentionality_2c of the arm raise_2a is built into the chimpanzee as a phenotypic trait.

Surely, the sign-interpretant (SI_i) of the interventional sign informs both chimpanzee youngsters what is happening_3a and the potential of ‘something happening’_1a.

0119 But, the intention is not to inform. The intention is to play_2c.

Consequently, there is a qualitative difference between the example of the arm raise_2a for the chimpanzee (as a stand-in for the last common ancestor) and the example of [SNAKE][THERE] of the early hominin (either Australopithecus or Homo genus).

01/12/24

Looking at Michael Tomasello’s Book (2008) “Origins of Human Communication” (Part 5 of 12)

0120 In chapter three, Tomasello shows that human newborns and infants innately sense that intention_2c underlies specifying signs.

To explain this fact, Tomasello proposes his cooperation model. Shared intentionality presupposes a background sense of the other as a candidate for cooperative agency. This requires (1) cognitive skills for creating joint attention and intentions and (2) social motivations for helping and sharing with others. Tomasello labels these formal requirements, (1) “common conceptual ground” and (2) “mutual expectations”.

0121 Do the interventional and specifying signs for the chimpanzee arm raise meet these requirements.

Here is a picture of the sequence, in the scholastic three-level interscope.

0122 In the (apparently inside out) interventional sign-relation, I intend to play_2c (SV_i) stands for a raised arm_2a (SO_i) with respect to what is happening_3a operating on the potential of ‘something happening’_1a (SI_i).

In the (more familiarly structured) specifying sign-relation, a raised arm_2a (SV_s) stands for let us play_2b (SO_s) in regards to what it means to me_3b operating on the potential meaning of ‘raised arm’_1b (SI_s).

0123 For all practical purposes, this model works just fine for great apes and perhaps, bipedal australopithecines. One youngster does not inform the other youngster about content as much as provide a signal to initiate a desired situation.

As soon as the other example is presented in the same manner, then one australopithecine informs another about content and that content initiates the desired situation. How else is one friend going to warn another?

0124 Some of the hallmarks of human communication are apparent in this diagram, when compared to the prior diagram.

There is the sense that one hominin is the communicator and the other hominin receives a communication.

The intent is to inform.

Just as in youthful chimpanzee play, both hominins share a common conceptual ground. Both know the pantomime-word “snake”. Both know that the pointing finger means “there”. There is a mutual expectation that [SNAKE][THERE]_2aspecifies something real_1a in the normal context of what is happening_3a. So, mutual expectation initiates a situation common to both, just like chimpanzee play.

0125 But, doesn’t there seem to be a missing sign?

In the first example, the missing sign is not so obvious.

In the second example, it is.

The missing sign is called the exemplar sign. The exemplar sign is first discussed in Comments on John Deely’s Book (1994) New Beginnings. A more recent discussion is found in Razie Mah’s blog for November 2023, titled Looking at John Deely’s Book (2010) Semiotic Animal.

0126 Here is a diagram.

0127 Note the substitutions in the perspective-level of the scholastic three-level interscope for how humans think.

The normal context_3c is not, “Does this make sense?_3c“. It_3c is a common conceptual ground_3c. If the common conceptual ground_3c does not make sense, then how can it be held in common? This provides a high standard for hominin thinking, doesn’t it?

Also, the potential_1c is not, “the possibility of contextualizing the situation_1c“. It_1c is the possibilities inherent in mutual expectations_1c.

0128 The above figure captures the message of chapter three, titled “Hominin Cooperative Communication”.

01/11/24

Looking at Michael Tomasello’s Book (2008) “Origins of Human Communication” (Part 6 of 12)

0129 Figure 3.1 in chapter three presents a schematic of a cooperative model of human communication. The communicator is depicted as one head. The recipient is portrayed as a second head. The two heads face one another. Arrows pass from the communicator to the recipient through a gray-box labeled, norms of cooperation and cooperative reason.

“Norms of cooperation” sounds like common conceptual ground_3c and the potential of ‘mutual expectations’_1c.

“Cooperative reason” seems like making sense_3c and the potential of ‘contextualizing the situation’_1c.

0130 Here is the corresponding figure derived from this examination.

0131 What a difference!

Human communication does not proceed from communicator to recipient. It proceeds by filling in the empty slots of the scholastic three-level interscope for how humans think.

Plus, this picture fits hand-in-glove with Tomasello’s assertion that hominin communication is conducted in hand talk, starting with pantomime and pointing.

Finally, in terms of natural history, some of the expansion of the brain, when going from the southern ape (Australopithecus) to handy man (Homo habilis) and to man-stand-tall (Homo erectus), can be attributed to adding more and more elements to this three-level interscope.

Yes, hominin brains embody more and more specifying, exemplar and interventional sign-relations.

Or something like that.

0132 Here is a good time to pause and assess Tomasello’s three interlocking hypotheses.

So far, two of them are pertinent to the examination.

0133 Plus, this business of sign-relations adds another way to look at the picture so far.

01/10/24

Looking at Michael Tomasello’s Book (2008) “Origins of Human Communication” (Part 7 of 12)

0134 What about language?

In order to approach the topic of language, I must provide a little background in natural signs.

According to Peirce, there are three types on natural sign. They are distinguished by the categorical qualities of their sign object.

Here is a picture.

0135 The icon refers to the whole by depicting a part. The part may represent the whole. The hand-talk word, [SNAKE], is a wiggling hand moving forward. The image should be fairly recognizable. Pantomime exercises icons.

The index points in the direction of the reference. The hand-talk word, [THERE], can also be [ME] or [YOU]. The referent is real, but may depend on the ongoing situation.

The symbol is real in so far as it is supported by convention and habit. The implication? As iconic and indexal manual-brachial gestures are routinized, they become more and more distinct from one another. They become more and more as symbols. Symbols are real when they are easily distinguished from one another and readily interpreted by convention and habit.

0136 Now, I ask, “Do symbols constitute language?”

Yes, symbols are responsible because each symbol in a finite order is distinct from any other symbol. A finite set of symbols constitutes a symbolic order (from one point of view) or a system of differences (from another point of view).

The term, “symbolic order”, emphasizes the order within the set. Order allows symbolic operations among distinct members, sort of like the formalization of conventions. Formalization allows the construction of complex concepts. The three-level interscope is an example of a purely relational structure that formalizes a symbolic construction. For language, these operations are called “grammar”.

The term, “system of differences”, emphasizes the fact that each symbol is different from any other symbol. Difference speeds up the recognition of each symbol. At the turn of the last century, a scientific linguist, Ferdinand de Saussure, recognizes this trait in spoken languages. He technically defines spoken language as two arbitrarily related systems of differences, parole (speech) and langue (the mental processing that occurs in response to talk).

This is sort of confusing.

Who would imagine that language consists in two systems of differences, composed of symbols?

0137 Symbols, by themselves, do not necessarily represent anything real. What do I mean by the term, “real”? The scholastics use the Latin term, “ens reale“, meaning mind-independent being. Icons and indexes picture and point to ens reale. Symbols are ens rationis, or mind-dependent beings. Symbols are testimonials to conventions, laws and traditions. In short, symbols are ens rationis, even though they may conventionalize very real habits of action.

Icons and indexes are natural signs. They touch base with ens reale.

Symbols are natural signs that facilitate ens rationis.

0138 Perhaps, “language” smells like… well… a funky, yet fragrant, perfume named, “Symbolize My Icons and Indexes”.

One cannot picture or point to the smell.

But, the scent clings to every icon and index.

Language evolves in the milieu of hand talk.

Language evolves as the icons and indexes of hand talk operate as symbols in a system of differences.

01/9/24

Looking at Michael Tomasello’s Book (2008) “Origins of Human Communication” (Part 8 of 12)

0139 A brief recap is in order.

Icons are sign-relations where the sign-object is based on the principle of similarity. Pantomime in hand talk fits this principle. Pantomime represents ens reale.

Indexes are sign-relations where the sign-object is based on the principles of contact, contiguity and pointing. Pointing and directional manual-brachial gestures fit this principle. Pointing represents ens reale.

Symbols are sign-relations where the sign-object is based on the principles of habit, convention, tradition and law. Symbols do not image or point to ens reale. However icons and indexes take on the character of symbols as they become, as Tomasello puts it, “conventionalized”.

0140 Now, for the next stage of my examination of Tomasello’s argument on language, I return to the scholastic picture for the way humans think.

0141 I know that each actuality may be rendered as a sign-object for one sign and a sign-vehicle for the next sign. A specifying sign-object_2b (SO_s) induces an exemplar sign vehicle_2b (SV_e). An exemplar sign-object_2c (SO_e) induces an interventional sign-vehicle_2c (SI_s) and so on.

0142 When I consider each actuality as a sign-object of one of the three signs, I draw the following correlation.

0143 The specifying sign comes first. The sign-object (SO_s) is perception_2b. Perception_2b works on icons and indexes in nature as well as in hand talk. Icons and indexes are sensible signs in this regard. They have referents that exist in mind-independent reality, ens reale.

0144 The exemplar sign comes next. The sign-object (SO_e) is a judgment_2c. Typically, this judgment brings an intelligible aspect of perception_2b (what ought to be) into relation with a universal aspect of sensation_2a (what is). This judgment_2c fits the message of the word, “rational”, because perception_2b and sensation_2a are brought into balance (that is, into a ratio). In doing so, SO_e embodies reason.

Note that I don’t use the term, “manifests”. I use the term, “embodies”.

Reason is built into our bodies and brains.

0145 The interventional sign comes next. The sign-object (SO_i) is a symbol, because its sign-vehicle (SV_i) is a judgment and judgments are mind-dependent beings (ens rationis). This sign-object (SO_i) is decoded into a specifying sign-vehicle (SV_s). The specifying sign vehicle (SV_s) will be situated as an icon or index (SO_s).

0146 Hand talk exemplifies hominin communication.

Tomasello’s argument on language may be re-articulated using Peircean triadic relations, formulated as the scholastic interscope of the way humans think and three interlocking sign-relations, consisting of the specifying, the exemplar and the interventional signs.

Here is a picture of the result.

01/8/24

Looking at Michael Tomasello’s Book (2008) “Origins of Human Communication” (Part 9 of 12)

0147 In hominin evolution, conventionalization is built into the use of hand talk. Hand talk goes with joint attention. Joint attention is an adaptation to sociogenesis. Sociogenesis is the human niche.

0148 How does this fit into Saussure’s paradigm?

If the interventional sign-object (SO_i) and the specifying sign-vehicle (SV_s) may be classified as parole, or “talk”, then the remainder of the three-level interscope may be associated with langue, or “language”.

Here is the resulting figure.

0149 The above figure plays into chapter four, titled “Ontogenic origins”, and chapter six, titled “The Grammatical Dimension”.

Once parole and langue satisfy the criteria of two systems of differences, then hand talk meets Saussure’s definition of language, as two related systems of differences.

With speech-alone talk, the relation is arbitrary. Formant frequencies for any particular spoken word are arbitrarily associated to a particular way of decoding the word and placing it in the slot for species impressa_2a.

In contrast, with hand talk, each gesture-word carries the natural sign qualities of icons and indexes, so the specifying sign-vehicle is decoded in ways that picture and point to its referent. I call the relation, “motivated”, instead of “arbitrary”.

0150 Tomasello spends a good deal of time discussing the issue of grammar.

To me, the question boils down to the cultivation of symbolic operations among elements within a symbolic order.

Symbolic order pertains to parole, in so far as each gestural word becomes more and more distinct from other gestural words. Symbolic order speeds recognition.

Symbolic order pertains to langue, in that each three-level interscope must be distinct. This is a tall order. Grammarpackages statements in order to assist the specifying sign (which favors icons and indexes), exemplar sign (which favors rational judgments) and the subsequent interventional sign (which expresses a conviction, since hand talk cannot picture or point to the elements of judgment, much less the triadic relation that constitutes judgment).

0151 No wonder Tomasello is so wound up about grammar. Grammar is like a knot that keeps tying itself into a new knot, even while the inquirer is trying to untie it.

Complete sentences (SO_i) craft impressions (SV_s).

Well-crafted sentences produce impressions_2a, that trigger perceptions_2b, that call to mind convictions_2c.

Just ask Rhett and Rick…

0152 … if you can get their joint attention.

Here is a picture of the pair, as one hand talks to the other, saying “[SNAKE][THERE]”.

0153 This raises the very important question concerns why Rhett and Rick engage in joint attention in the first place.

Joint attention is the adaptation. Sociogenesis labels the corresponding niche.

0154 In order to appreciate the “socio” of “sociogenesis”, I turn to Comments on John Gowlett, Clive Gamble, and Robin Dunbar’s Book (2014) Thinking Big (by Razie Mah, available at smashwords and other e-book venues). Dunbar introduces a breakthrough model in evolutionary anthropology. The brain size to body size ratio associates to group size. Great apes and southern apes have a ratio that corresponds to a group of 50 (a band).

In addition to this, these three anthropologists suggest that there is some sort of structural pattern within the band (50) that magnifies or reduces by a factor of three. They call the structures, “social circles”. The smaller social circles are family (5), intimates (5), and teams (15). The larger social circles (which exist in the realm of potential for the southern apes) are community (150), mega-band (500) and tribe (1500).

0155 So, the answer to the question, asking “Why are Rhett and Rick engaging in joint attention in the first place?”, must concern social circles.

0156 Thinking Big (2014) comes out six years after Origins of Human Communication (2008). The fact that both books appear within a decade of one another shows the ferment in the discipline of evolutionary anthropology.