Social network structure has been argued to shape the structure of languages, as well as affect the spread of innovations and the formation of conventions in the community. Specifically, theoretical and computational models of language change predict that sparsely connected communities develop more systematic languages, while tightly knit communities can maintain high levels of linguistic complexity and variability. However, the role of social network structure in the cultural evolution of languages has never been tested experimentally. Here, we present results from (...) a behavioral group communication study, in which we examined the formation of new languages created in the lab by micro‐societies that varied in their network structure. We contrasted three types of social networks: fully connected, small‐world, and scale‐free. We examined the artificial languages created by these different networks with respect to their linguistic structure, communicative success, stability, and convergence. Results did not reveal any effect of network structure for any measure, with all languages becoming similarly more systematic, more accurate, more stable, and more shared over time. At the same time, small‐world networks showed the greatest variation in their convergence, stabilization, and emerging structure patterns, indicating that network structure can influence the community's susceptibility to random linguistic changes (i.e., drift). (shrink)

El presente trabajo tiene dos objetivos centrales. Primero caracterizaré una variante de pragmatismo conceptual según la cual algunos conceptos deben entenderse como habilidades para identificar sustancias e identificar propiedades del entorno, y mostraré que quien cuenta con esas dos habilidades satisface, en grados diversos en cada caso, distintos requisitos centrales para la posesión de conceptos. Posteriormente defenderé la viabilidad de extender este enfoque a los animales no humanos, apelando a evidencia empírica que indica que distintas especies son capaces de identificar (...) sustancias de su entorno y que sugiere la presencia de habilidades para identificar propiedades en algunos primates y pájaros. (shrink)

Necessity and sufficiency are the building blocks of all successful explanations. Yet despite their importance, these notions have been conceptually underdeveloped and inconsistently applied in explainable artificial intelligence (XAI), a fast-growing research area that is so far lacking in firm theoretical foundations. Building on work in logic, probability, and causality, we establish the central role of necessity and sufficiency in XAI, unifying seemingly disparate methods in a single formal framework. We provide a sound and complete algorithm for computing explanatory factors (...) with respect to a given context, and demonstrate its flexibility and competitive performance against state of the art alternatives on various tasks. (shrink)

In our study of U.S. counterterrorism programs, we found that anthropology needs a mode of analysis that considers security as a form distinct from insecurity, in order to capture the very heterogeneity of security objects, logics and forms of action. This article first presents a genealogy for the anthropology of security, and identifies four main approaches: violence and State terror; military, militarization, and militarism; para-state securitization; and what we submit as “security analytics.” Security analytics moves away from studying security formations, (...) and how much violence or insecurity they yield, to identifying security forms of action, whether or not they are part of the nation-state. As a framework for anthropological inquiry, it is oriented toward capturing how these forms of action work and what types of security they produce. We then illustrate this approach through our fieldwork on counterterrorism in the domains of law enforcement, biomedical research and federal-state counter extremism. In each of our cases, we use security analytics to arrive at a diagnosis of the form of action. The set of conceptual distinctions that we propose as an aid to approaching empirical situations and the study of security is, on another level, a proposal for an approach to anthropology today. We do not expect that the distinctions that aid us will suffice for every situation. Rather, we submit that this work presents a set of specific insights about contemporary U.S. security, and an example of a new approach to anthropological problems. (shrink)

The reading of Genesis 18,20 does not make clear what the sin of Sodom is. The Hebrew text only says that the transgression of the inhabitants of that city was greatly aggravated: “וחַטָּאתָּם” –“vëchatåtåm” -“כָּבְ דָּה” –“khåvëdåh” -“מְ אֹד” –“mëod”. Even the passage in Gen 19,5 gives no clue to a specific sin: in this passage it seems more evident that the sodomites are violating the normal canons of hospitality. But then why do popular imaginations and some interpreters identify the (...) sin of Sodom with homosexuality? This research will demonstrate that a number of factors led to this type of interpretation. First it was understood that Gen 19,5 gave an indication of the sexual orientation of the inhabitants of Sodom; then the passages of Leviticus 18,22 and 20,13 were invoked to regulate this opinion; the next step was to connect Gen 18,20 and 19,5 with Paul’s comments in Romans 1 in which the sin of Sodom was associated with homosexual sex. This connection was sustained by Augustine and also by the author of “Visio Sancti Pauli”. The coming together of these factors was the catalyst for later traditions in which the sin of Sodom is presented as homosexual sex. (shrink)

What is it to be a better ape? This is the question Victor Kumar and Richmond Campbell ask in their book on the evolution of the moral mind, an ambitious story that starts with the common ancestor of the modern apes—humans, chimpanzees, bonobos, gorillas, and orangutans. Of all of us, it’s the humans who remain in the running for being a better ape, because we’re the ones who have all the necessary ingredients: the binding emotions of sympathy and loyalty which (...) we share with our nonhuman cousins, but also the collaborative emotions of trust and respect and the reactive emotions of guilt and resentment. Importantly, only humans are thought to have norms, and to be biologically prepared to learn norms. For Kumar and Campbell, the co-evolution of emotions and norms is what set humans on this path so we can become a better ape. -/- The story they tell is artfully woven from major theories in psychology and anthropology, and those of us who have pre-existing opinions about these theories have points where we can quibble regarding the nature of the emotions–whether only humans imitate, what norms of fairness amount to, or whether any other species are generalists who can survive in a wide range of habitats. Rather than focusing on these, I want to turn to an exciting hypothesis Kumar and Campbell propose about the evolution and function of norms. While it is most common to think that norms helped our ancestors solve the collective action problems that emerged when larger groups of individuals started living together, Kumar and Campbell suggest a different, though complementary, function for norms. They propose that norms provide a more precise and flexible means for coordinating behavior in quickly changing societies. On their view, it isn’t the size of community that is the most significant variable, but rather the speed at which culture evolves. -/- That norms are a human universal is indubitable. Our contemporary human societies are rife with rules constraining our behaviors, governing aspects of our lives from birth to death, prescribing practices about what to wear, how to work, what to eat, when and how to sleep as well as rules about rare practices that are proscribed. However, Kumar and Campbell also presume that norms are human unique. Here I have more than a quibble, given the burgeoning empirical and theoretical literature on the question of animal normativity (Andrews 2020; Danón 2019; Fitzpatrick 2020; de Waal 2014; von Rohr et al. 2011; Rohr et al. 2015; Whiten et al. 2005; Westra et al., in prep)... (shrink)