0187 In the preface, the author notes that this book is a prequel to The Cultural Origins of Human Cognition (1999, Harvard University Press). The question is the same. What makes humans unique? The answer is the same. Humans think differently than great apes, their closest biological kin.
In 1999, researchers in evolutionary anthropology could say, “Only humans think of other humans as intentional agents. Plus, my cat and my dog are intentional operators, as well, say nothing of the weather.”
Okay, I added the second sentence for dramatic effect.
Unfortunately, research conducted after 1999 introduces a problem. It turns out that great apes recognize intentionality in others.
Uh oh.
0188 This book is the third marker in Tomasello’s intellectual journey. I start following his trek with Looking at Michael Tomasello’s Book (1999) “The Cultural Origins of Human Cognition” (appearing in Razie Mah’s January 2024 blog). The second marker that I examine may be found in Looking at Michael Tomasello’s Book (2008) “Origins of Human Communication” (appearing later in the same blog for the same month).
0189 In the publication before me, A Natural History of Human Thinking (2014, Harvard University Press, Cambridge Massachusetts), Tomasello explicitly abstracts three cognitive processes in order to distinguish humans from apes. The processes are cognitive representation, inference and self-monitoring. He then proposes that all three components were transformed in two key steps during hominin evolution. He labels his claims, “the shared-intentionality hypothesis”.
0190 Does this follow the trajectory set by previous works?
Here is a theme that appears in the second marker, pre-emptively modified with the above propositions in mind.
0191 This modified picture allows me to offer slogans for movements zero and one.
0001 In 1999 AD, Michael Tomasello, then co-director of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, publishes the work before me (Harvard University Press, Cambridge, Massachusetts).
To me, this work marks the start of the author’s twenty year journey, culminating in a theory of human ontogeny, published in 2019. The word, “ontogeny”, refers to human development and associates to the human phenotype.
0002 What interests me in Tomasello’s journey?
As noted in Comments on Dennis Venema and Scot McKnight’s Book (2017) Adam and the Genome (available at smashwords and other e-book venues), “phenotype” and “adaptation” are not the same. Instead, these labels apply to distinct actualities that coalesce into a single actuality. One may call that single actuality, an individual, a species or a genus. One may also call that single actuality, “a mystery”.
I am interested in the natural history side of the mystery of human evolution. However, the genetic (or ontogenetic) side cannot be ignored. Plus, natural history cannot be reduced to genetics, or visa versa
0003 Chapter one of Tomasello’s book is titled, “A Puzzle and a Hypothesis”.
Of course, a puzzle is not a mystery. A puzzle can be resolved. A mystery cannot.
The puzzle starts with genetics. Geneticists have examined the DNA of chimpanzees, bonobos and humans and predict that the last common ancestor lives 6 or 7 Myr (six or seven million years ago).
In contrast, physical anthropologists (natural historians) propose the fossil record noted in the following figure. With terminological sleight of hand, they refer to human ancestors as “hominins”, even though the old term for any bipedal primate (ape or human) is “hominid”.
0004 Hmmm. Does the puzzle concern time?
According to genetics, the last common ancestor (LCA) between chimpanzees and humans lives 7 Myr (millions of years ago). But, little significant shows up in the fossil record until 4 Myr. Our lineage obviously evolves feet first. As it turns out, starting around 5 Myr, the extent of tropical vegetation in Africa decreases due to desiccation. Bipedality is an adaptation to mixed forest and savannah.
0005 The fossil record provides other clues, especially stone tools.
The first stone tools are Oldowan. Oldowan stones tools are constructed on site. They are used to scrape meat off of bone and to crack long bones (that are full of fatty marrow).
Acheulean stone tools appear later in the archeological record. Acheulean stone tools are made beforehand and carried with some intention in mind. They have the appearance of a giant tooth. Notably, Acheulean stone tool technology remains unchanged for over a million years. Innovations in stone-tools follow the domestication of fire.
0006 Surely, these two tables are puzzling. In the first, the fossil record pertains to changes in hominin phenotypes. In the second, the fossil record pertains to hominin adaptations, but these adaptations are not phenotypic. They are artifacts. Are these adaptive artifacts cultural? Are they behavioral? I wonder, “Do the words, ‘culture’ and ‘behavior’, capture the matter and the form of these artifacts?” It is as if an adaptation recognizes matter and generates form.
0007 What is the nature of the adaptation that maintains (and occasionally changes) artifacts, as if these artifacts are phenotypes?
Tomasello suggests that an adaptation is a novel form of social cognition. Our lineage adapts to a new way of thinking about one another, eventually allowing sociogenesis, new styles of learning and cultural evolution.
0008 Tomasello proposes that there is one adaptation that potentiates subsequent adaptations.
Razie Mah proposes that there is one ultimate niche for our lineage. The hypothesis is presented in the e-book, The Human Niche (available at smashwords and other e-book venues).
0009 Do Tomasello (in 1999) and Mah (in 2018) propose that our lineage is defined by the same adaptation… er… niche?
What is the difference between an adaptation and a niche?
0072 Chapter five is titled, “Linguistic Construction and Event Cognition”. The perspective-level linguistic communication2c participates in ongoing events2a.
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 attention2athe 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 phenotype2c puts culture2b into perspective. Then, culture2b virtually situates the adaptation of joint attention2a.
Yes, to repeat, the phenotype2c does not directly situate the adaptation2a. Tomasello’s vision leads upwards from joint attention2a to human culture2b and then to human cognitive development2c. Cognitive development2c puts culture2b into perspective, just as culture2b virtually situates joint attention2a.
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 ontogeny2c (the scientific study of human development) virtually contextualizes human culture2b (a somewhat vaguely defined term that refers to all situations where joint attention2a pertains). In the process, Tomasello must also explain how human culture2b, especially spoken language and symbolic representation, virtually emerges from and situates joint attention2a.
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 infants2c virtually brings the actuality of spoken language and symbolic representation2binto the potential of a foundational adaptation2a.
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 attention2b as an adaptation to sociogenesis1b in the normal context of natural selection3b. Sociogenesis1b is the human niche1b. The human niche1b is the potential1b of triadic relations2a. Consequently, the adaptation of joint attention2a 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.
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 ontogeny2c or models of child development currently built by psychologists2c, associates to phenotypes and genetics. Joint attention2a or models in evolutionary psychology concerning hominin cognition2a,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 phenotype2b virtually situates a species’ or individual’s DNA2a.
Here is a diagram.
0088 Not surprisingly, this diagram in genetics has the same two-level relational structureas 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 attention2a and human ontogeny2c 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 ontogeny2c is an adaptation that emerges from and situates the potential of human culture2b, where human culture2b is like an actuality independent of the adapting species of individuals undergoing development3c.
Human culture2b is like an adaptation that emerges from and situates the potential of joint attention2a, where joint attention2a is like an actuality independent of the adapting ways of doing things3b.
Joint attention2a is like an adaptation that emerges from and situates sociogenesis1a, where sociogenesis1a 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 sociogenesis1a, the potential1a giving rise to joint attention2a. 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.
