El martes 26 de abril de 2016 en la Universidad Pontificia Bolivariana de Medellín, en el curso “De la analítica a los acto de habla” del Doctorado en Filosofía, tuvimos la oportunidad de compartir y hacer una conversatorio con el filósofo mexicano Dr. Alejandro Tomasini Bassols, investigador del Instituto de Investigaciones Filosóficas y profesor de filosofía en la Facultad de Filosofía y Letras de la UNAM. El profesor Tomasini es uno de los investigadores más reconocidos en la obra del Filósofo (...) austriaco Ludwig Wittgenstein, además de haber desarrollado una importante obra alrededor de la tradición analítica y de algunos problemas actuales como la discusión sobre la pena capital. También el profesor Tomasini en su visita a Colombia, inicialmente participó en Medellín con una conferencia titulada “Derecho y objetividad”, en la Universidad Pontificia Bolivariana y luego en la Feria del Libro de Bogotá –FILBO- realizó la presentación y conferencia del libro Hacer mundos: el nombrar y la significatividad. Previo a su viaje a Bogotá, interactuó con el curso doctoral en filosofía y de este encuentro académico presentamos el siguiente diálogo. (shrink)

La muerte resulta problemática para la contemporaneidad. El existencialismo es una corriente filosófica que presenta la facticidad de la mortalidad como propia de la vida. El pensador Albert Camus articula los pilares fundamentales de su filosofía en torno a la experiencia de la muerte, que lleva al absurdo, del que debe partir la acción rebelde. En esta investigación se analizan algunas dinámicas que, pretendiendo huir de la muerte, solo han conseguido hacernos débiles frente a ella. Presentaremos a Sísifo y Rieux, (...) dos de los personajes de sus escritos, como aquellos paradigmas de conducta que pueden contribuir a hacernos más conscientes del absurdo y poder, de este modo, vivir, amar y luchar. (shrink)

La cultura griega, al mismo tiempo que la filosofía platónica, ha contemplado la inmortalidad del alma como algo cierto. Por su parte, el pensamiento de Unamuno se encuentra articulado poru anhelo de inmortalidad. En el pensamiento unamuniano se ofrecen diversas vías que buscan solucionar este problema antropológico fundamental. La falta de éxito en esta empresa nos aboca al tragicismo, que se convierte en un posicionamiento filosófico, cuya conceptualización filosófica encontramos en la obra Del sentimiento trágico de la vida. anto Platón (...) como Unamuno acaban realizando un giro desde el logos al mito o la religión, a fin de abordar temáticas que la racionalidad no puede solucionar. ¿Es posible que ambos pensadores se encuentren en su concepción de la inmortalidad del alma? Perseguimos la tesis de que el amor es el punto de encuentro entre ambos pensamientos, entendido este como una vía de «inmortalización» del alma. En esta investigación intentaremos poner en contacto ambos pensamientos, así como identificar algún posible elemento platónico en la filosofía del bilbaíno. (shrink)

In this article there is a criticism of the thesis that defines the Spanish political transition as a successful attempt to put an end to the "law of the pendulum" that had been governing our constitutional history. On the one hand, this thesis underestimates the conditions of the Spanish situation of 1978, marked by the transit between two worlds, the modern one that inherited and the emerging postmodern, which would become an unquestionable reality from 1989. In addition, the Spanish Constitution (...) of 1978 was drafted at a time when the political-normative conceptual assumptions of the dominant constitutional paradigm in Europe after World War II were declining. Likewise, the thesis ignores the specific spanish differential feature: the civil war of 1936-1939 and the subsequent rupture and radical separation of Spanish modernity into two distinct historical sections: one initiated with the French Revolution and culminated in the most absolute destruction of the pre-existing political and social order; and another that starts in 1939, since the construction of zero of a radically new pattern of society and culture, with which the Spaniards encountered in December 1975 when they assumed their full political protagonism in a situation unprecedented and completely devoid of precedents in our national constitutional tradition. (shrink)

The purpose of this paper is to outline a thesis which in some ways attemts to retrieve the value of meaning as a constituent element of theories. It will be argued that theories possess in common a more or less explicit relational structure, but, at the same time, they possess a meaningful function by means of which they are instruments of knowledge or, rather, by means of which theories have the value ofknowledge in science. In conclusion, it will be suggested (...) that this approach to theories allows those with weak relational structure (social, historical theories, etc.) to be treated with a degree of adequacy by the philosophy of science. Likewise, it will be suggested that the method of semantic analysis linked to the theory of “possible worlds” could be fruitful for this purpose. (shrink)

Criticism of the traditional periodization of history (antiquity, the Middle Ages, the modern age), generally centered on the medieval period as the crucial point, has not even stooped to consider what is called the “contemporary age.” This new and poorly defined phase, proposed by the methodologists to inclose in history the events and times which immediately precede us or in which we live, has not in general been accepted as such a theoretical unity by those who have been occupied with (...) the other pretentious “ages” in order to deny their equal validity.In the ingenious and controversial scheme outlined here, certainly, the contemporary age represents a concept so artificial, so devoid of unified personality and feeling and of clear differentiation, that it only disturbs the already slight harmony of this controversial and antiquated system. (shrink)

La migración internacional nos enfrenta con problemas irresolubles desde la figura moderna del Estado nacional, su concepto de ciudadanía y su noción de justicia. Juan Carlos Velasco critica las limitaciones y la orientación de las políticas contemporáneas que nos hacen percibir a la migración como una “invasión”, y propone un modo radicalmente diferente de entender e intervenir el fenómeno desde lo trasnacional. Nacer de uno u otro lado de una línea divisoria es un evento azaroso, no obstante delimitar la (...) frontera es una construcción histórico-política: la desigualdad en las oportunidades que ofrecen las naciones es una situación estructural de injusticia que se perpetúa con las políticas de exclusión de los migrantes y la deslegitimación de su derecho a buscar una vida mejor. Esa circunstancia genera fracturas sociales, injustificables pero normalizadas, que imposibilitan alcanzar la justicia global. Velasco presenta un análisis completo que abarca las dimensiones política, jurídica y moral del tema, en el que lleva a la filosofía política a un terreno práctico del que se desprenden las claves para entender y actuar en esta nueva era en la que, debido a los conflictos sociales y políticos, la migración vuelve a ser argumento de discusión relevante. (Texto de la CONTRAPORTADA del libro). (shrink)

This paper aims to offer an account of affective experiences within Predictive Processing, a novel framework that considers the brain to be a dynamical, hierarchical, Bayesian hypothesis-testing mechanism. We begin by outlining a set of common features of affective experiences that a PP-theory should aim to explain: feelings are conscious, they have valence, they motivate behaviour, and they are intentional states with particular and formal objects. We then review existing theories of affective experiences within Predictive Processing and delineate two families (...) of theories: Interoceptive Inference Theories and Error Dynamics Theories. We highlight the strengths and shortcomings of each family of theories and develop a synthesis: the Affective Inference Theory. Affective Inference Theory claims that valence corresponds to the expected rate of prediction error reduction. In turn, the particular object of a feeling is the object predicted to be the most likely cause of expected changes in prediction error rate, and the formal object of a feeling is a predictive model of the expected changes in prediction error rate caused by a given particular object. Finally, our theory shows how affective experiences bias action selection, directing the organism towards allostasis and towards optimal levels of uncertainty in order to minimise prediction error over time. (shrink)

Phylogenetic trees are meant to represent the genealogical history of life and apparently derive their justification from the existence of the tree of life and the fact that evolutionary processes are treelike. However, there are a number of problems for these assumptions. Here it is argued that once we understand the important role that phylogenetic trees play as models that contain idealizations, we can accept these criticisms and deny the reality of the tree while justifying the continued use of trees (...) in phylogenetic theory and preserving nearly all of what defenders of trees have called the “importance of tree thinking.”. (shrink)

In March 2021, the Spanish Congress approved the law regulating euthanasia, that regulates both euthanasia and physician-assisted suicide (PAS). In this article, we analyse the Spanish law regulating euthanasia and PAS, comparing it with the rest of the European laws on euthanasia and PAS (Netherlands, Belgium and Luxembourg). Identified strengths of the Spanish law, with respect to other norms, are that it is a law with many safeguards, which broadly recognises professionals’ right to conscientious objection and the specification that it (...) makes on the prior comprehensive care of the patient, including the approach to care dependency. Regarding its shortcomings, the law does not differentiate well between euthanasia and PAS; it barely assigns a role to the healthcare team as a whole (similar to other regulations); it does not clarify the functions of the different professionals involved; it does not detail the specific composition and duration of theevaluation commission; it has not been accompanied by a prior or simultaneous regulation of palliative care; and, lastly, the period of time to implement the law is too short. (shrink)

The project of this paper is to understand what a phylogenetic tree represents and to discuss some of the implications that this has for the practice of systematics. At least the first part of this task, if not both parts, might appear trivial—or perhaps better suited for a single page in a textbook rather than a scholarly research paper. But this would be a mistake. While the task of interpreting phylogenetic trees is often treated in a trivial way, their interpretation (...) is tied to foundational conceptual questions at the heart of systematics—questions whose answers are hotly disputed. I have previously argued that widely shared ideas about the meaning and interpretation of phylogenetic trees are inconsistent with species concepts other than some genealogical version of a phylogenetic species concept (Velasco 2008). Here I rely on a similar approach and concentrate on the implications of the necessary conditions underlying the inferences that we make using phylogenetic trees. I argue that common practices for the interpretation and use of trees are in conflict and that unacceptable principles about species as units of phylogeny must be given up. According to the view that I will develop, all phylogenetic trees depict the history of populations. The branches on trees represent collections of population lineages through time and the splits represent population lineage splits. This is true regardless of whether the tips of the trees are themselves populations, or are species or higher taxa. Although this conclusion might be paired naturally with a view that species must be monophyletic groups, this population-centric view of trees is independent of that view of species. If we still want to have species that are paraphyletic groups of populations, this is permissible as long as we also do not treat species as the units of phylogeny. This population-centric view opposes a species-centric view of phylogeny and might be called a “rank-free” approach since it entails that we do not need to determine which groups are species (which is partly a ranking question) in order to build a tree. This conclusion and the argument for it are meant to be consistent with, but not require, acceptance of the conclusions of Velasco (2008) regarding species. (shrink)

Many phylogenetic systematists have criticized the Biological Species Concept (BSC) because it distorts evolutionary history. While defenses against this particular criticism have been attempted, I argue that these responses are unsuccessful. In addition, I argue that the source of this problem leads to previously unappreciated, and deeper, fatal objections. These objections to the BSC also straightforwardly apply to other species concepts that are not defined by genealogical history. What is missing from many previous discussions is the fact that the Tree (...) of Life, which represents phylogenetic history, is independent of our choice of species concept. Some species concepts are consistent with species having unique positions on the Tree while others, including the BSC, are not. Since representing history is of primary importance in evolutionary biology, these problems lead to the conclusion that the BSC, along with many other species concepts, are unacceptable. If species are to be taxa used in phylogenetic inferences, we need a history-based species concept. (shrink)

Drosophila flies began to be used in the study of species evolution during the late 1930s. The geneticists Natasha Sivertzeva-Dobzhansky and Elizabeth Reed pioneered this work in the United States, and María Monclús conducted similar studies in Spain. The research they carried out with their husbands enabled Drosophila population genetics to take off and reveals a genealogy of women geneticists grounded in mutual inspiration. Their work also shows that women were present in population genetics from the beginning, although their contributions (...) have previously remained unacknowledged. The similarities between their research biographies also illustrate their position in a genealogy of partnerships working on Drosophila genetics. (shrink)

Multisensory Experiences: Where the senses meet technology takes you on a journey that goes from the fundamentals of multisensory experiences, through the relationship between the senses and technology, to what the future of those experiences may look like, and our responsibility in it.

A common view is that species occupy a unique position on the Tree of Life. Evaluating this claim requires an understanding of what the Tree of Life represents. The Tree represents history, but there are at least three biological levels that are often said to have genealogies: species, organisms, and genes. Here I focus on defending the plausibility of a gene-based account of the Tree. This leads to an account of species that are determined by gene genealogies. On this view, (...) an exclusive group is a group of organisms that forms a clade for a higher proportion of the genome than any conflicting clade. Taxa occupy a unique position in what can be called the ‘primary concordance tree’. But each gene has its own historical ‘Tree of Life’. I conclude by arguing that both organismal pedigrees with their corresponding Tree as well as gene genealogies and their trees are objectively real and play important, but different, roles in biological practice. (shrink)

This paper investigates ontological dimensions of the blockchain by asking what kind of socio-technical object bitcoin is. It discusses both blockchain's political qualities and the political forms enabled by its emergence. It first observes recent approaches to the ontology of money and the political qualities of the ledgers used by the current fractional reserve banking model. It then directs the same questions at blockchain technology. The paper discusses an ontology proposed by Ole Bjerg and argues in favour of a mixed-ontology (...) approach to blockchains. It then questions the political qualities of the distributed ledger as a digital object and highlights the apparent absence of authority figures in the model. Finally, it argues that the political ontology of the blockchain can be framed as the displacement of authority from institutional actors into instrumental control of trust, in a dynamically distributed environment. (shrink)

A natural starting place for developing a phylogenetic species concept is to examine monophyletic groups of organisms. Proponents of “the” Phylogenetic Species Concept fall into one of two camps. The first camp denies that species even could be monophyletic and groups organisms using character traits. The second groups organisms using common ancestry and requires that species must be monophyletic. I argue that neither view is entirely correct. While monophyletic groups of organisms exist, they should not be equated with species. Instead, (...) species must meet the more restrictive criterion of being genealogically exclusive groups where the members are more closely related to each other than to anything outside the group. I carefully spell out different versions of what this might mean and arrive at a working definition of exclusivity that forms groups that can function within phylogenetic theory. I conclude by arguing that while a phylogenetic species concept must use exclusivity as a grouping criterion, a variety of ranking criteria are consistent with the requirement that species can be placed on phylogenetic trees. (shrink)

There is a remarkable gap in the academic literature when it comes to group navigation, and procedural metacognition in group navigation is an important but virtually unexplored topic. The present paper aims to fill this gap by providing an account of how metacognitive feelings evaluate and regulate group navigational processes. The paper reviews animal studies and ethnographic work to elucidate three exiting processes in human group navigation: many-wrongs, leadership and emergent sensing. This is followed by an analysis of the role (...) of procedural metacognition in the navigational processes involved in each of these three processes. This analysis shows that procedural metacognition serves to regulate and evaluate group navigation in a flexible, process-specific way. When performance issues arise during group navigation, the emergence of negative affective states makes the navigational process conspicuous, prompting a modulation of said process. (shrink)

Bayesian methods have become among the most popular methods in phylogenetics, but theoretical opposition to this methodology remains. After providing an introduction to Bayesian theory in this context, I attempt to tackle the problem mentioned most often in the literature: the “problem of the priors”—how to assign prior probabilities to tree hypotheses. I first argue that a recent objection—that an appropriate assignment of priors is impossible—is based on a misunderstanding of what ignorance and bias are. I then consider different methods (...) of assigning prior probabilities to trees. I argue that priors need to be derived from an understanding of how distinct taxa have evolved and that the appropriate evolutionary model is captured by the Yule birth–death process. This process leads to a well-known statistical distribution over trees. Though further modifications may be necessary to model more complex aspects of the branching process, they must be modifications to parameters in an underlying Yule model. Ignoring these Yule priors commits a fallacy leading to mistaken inferences both about the trees themselves and about macroevolutionary processes more generally. (shrink)

Common ancestry is a central feature of the theory of evolution, yet it is not clear what “common ancestry” actually means; nor is it clear how it is related to other terms such as “the Tree of Life” and “the last universal common ancestor”. I argue these terms describe three distinct hypotheses ordered in a logical way: that there is a Tree of Life is a claim about the pattern of evolutionary history, that there is a last universal common ancestor (...) is an ontological claim about the existence of an entity of a specific kind, and that there is universal common ancestry is a claim about a causal pattern in the history of life. With these generalizations in mind, I argue that the existence of a Tree of Life entails a last universal common ancestor, which would entail universal common ancestry, but neither of the converse entailments hold. This allows us to make sense of the debates surrounding the Tree, as well as our lack of knowledge about the last universal common ancestor, while still maintaining the uncontroversial truth of universal common ancestry. (shrink)

Previous research has demonstrated that ratings of the perceived pleasantness and quality of odors can be modulated by auditory stimuli presented at around the same time. Here, we extend these results by assessing whether the hedonic congruence between odor and sound stimuli can modulate the perception of odor intensity, pleasantness, and quality in untrained participants. Unexpectedly, our results reveal that broadband white noise, which was rated as unpleasant in a follow-up experiment, actually had a more pronounced effect on participants’ odor (...) ratings than either the consonant or dissonant musical selections. In particular, participants rated the six smells used as being less pleasant and less sweet when they happened to be listening to white noise, as compared to any one of the other music conditions. What is more, these results also add evidence to support the existence of a close relationship between an odor’s hedonic character and the perception of odor quality. So, for example, independent of the sound condition, pleasant odors were rated as sweeter, less dry, and brighter than the unpleasant odors. These results are discussed in terms of their implications for the understanding of crossmodal correspondences between olfactory and auditory stimuli. (shrink)

Los escritos de Jürgen Habermas han despertado en España un interés notable y sostenido en el tiempo. Han ejercido una fuerte influencia intelectual no solo en los círculos académicos, sino también en amplios sectores de la esfera pública, algo sorprendente teniendo en cuenta su complejidad y su carácter más bien técnico. En sus textos los lectores españoles han encontrado elementos que sintonizan constructivamente con los cambios acaecidos en su propia sociedad y en el mundo. Como argumento de autoridad o como (...) referencia a rebatir, Habermas se ha hecho habitual en la filosofía y en la teoría social pensada y escrita en español. En este artículo se tratará de presentar los diversos contextos que posibilitaron la acogida de sus ideas, así como los principales actores que con sus trabajos y reflexiones han protagonizado la propagación de su pensamiento. (shrink)

Phylogenetics is the study and reconstruction of evolutionary history and is filled with numerous foundational issues of interest to philosophers. This paper briefly introduces some central concepts in the field, describes some of the main methods for inferring phylogenies, and provides some arguments for the superiority of model-based methods such as Likelihood and Bayesian methods over nonparametric methods such as parsimony. It also raises some underdeveloped issues in the field of interest to philosophers.

El propósito principal de este libro es mostrar hasta qué punto el pensamiento teórico de Habermas está animado por un fuerte aliento práctico, más concretamente práctico-político, con el que concretaría el muy ilustrado propósito de hacer uso público de la razón. De hecho, la intencionalidad práctica de su pensamiento es tan destacada que el conjunto de su obra se entiende mucho mejor si se la concibe, tal como él mismo insiste, como un intento de guiar con una finalidad emancipatoria el (...) camino de la praxis, o, si se prefiere, de orientar racionalmente la acción política en las sociedades contemporáneas. (shrink)

A phylogeny that allows for lateral gene transfer (LGT) can be thought of as a strictly branching tree (all of whose branches are vertical) to which lateral branches have been added. Given that the goal of phylogenetics is to depict evolutionary history, we should look for the best supported phylogenetic network and not restrict ourselves to considering trees. However, the obvious extensions of popular tree-based methods such as maximum parsimony and maximum likelihood face a serious problem—if we judge networks by (...) fit to data alone, networks that have lateral branches will always fit the data at least as well as any network that restricts itself to vertical branches. This is analogous to the well-studied problem of overfitting data in the curve-fitting problem. Analogous problems often have analogous solutions and we propose to treat network inference as a case of model selection and use the Akaike Information Criterion (AIC). Strictly tree-like networks are more parsimonious than those that postulate lateral as well as vertical branches. This leads to the conclusion that we should not always infer LGT events whenever it would improve our fit-to-data, but should do so only when the improved fit is larger than the penalty for adding extra lateral branches. (shrink)

[EN] In this article the question of cultural diversity as it appears in the perspective of a republican conception of citizenship is discussed within three steps: in a first step, the ambiguous sense of the notion «citizenship» and its recently accelerated evolution will be presented; in a second step, the general features of the neo-republican approach will be outlined; and finally, the chances offered by a relecture of the republican topics with regard to an integration of the plurality of cultures (...) and ways of life, which coexist within the complex contemporary societies and which base on migration processes, will be brought to mind. [ES] En este artículo se aborda la cuestión de la diversidad cultural contemplada desde la concepción republicana de la ciudadanía en tres pasos: en el primero, se presenta el sentido polisémico de la noción de ciudadanía y la acelerada evolución que ha experimentado en los últimos tiempos; en un segundo paso, se ofrecen los rasgos generales que caracterizan el enfoque neorrepublicano; y, finalmente, se da cuenta de las virtualidades que ofrece una relectura de los tópicos republicanos para integrar la pluralidad de culturas y formas de vida que conviven en las complejas sociedades contemporáneas a raíz de los procesos migratorios. (shrink)

Las 15 piezas que ahora lo conforman abrevan en la Historia, en confeciones personales y entrevistas, y mezclan la literatura y el periodismo de manera audaz y perfecta. Los protagonistas son hombres excepcionales y el momento que se ha elegido para contar son las visperas de sus muertes -tal vez el momento de mayor soledad y de mayor intimidad de un hombre. A traves de la magistral escritura de Tomas Eloy Martinez tenemos el privilegio de asistir a los ultimos (...) minutos de sus vidas, el momento previo a perderlo todo y cuando, resistiendo a la indiferencia del mundo, se suena con alguna inmortalidad. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Theorizing the Language of LawJesús Rodríguez-Velasco (bio)Law transforms reality, de iure and de facto, inasmuch as it attempts to bridge the gap between that which is done de facto and that which is regulated de iure. It is standard practice, for Alfonso X of Castile,1 to reinvent the means of writing the law. He does not limit himself to compiling or revising existing legal statutes; rather, he elevates (...) the corpus of the law to the level of juridical science. Dominating the meaning of the word—its hermeneutics and its relation to truth, lies, rhetoric, history, and poetry—is also the key to dominating juridical discourse itself and its capacity for creating certainty. Or, at least, for controlling uncertainty. Uncertainty, that is to say, the ambiguity in the interpretation of the relationship between words and things, appears to be one of the targets of Alfonsine juridical science.It is in the institutions that one can best study this desire for control. In particular, the need for control becomes visible in the court and the places related to it (the palace, chamber, or bedroom), codified by the law in order to put justice into action, in the representation of power, in cultural exchange, in education, and in recreation. Here legislation acquires a special significance with respect to the word, to narration, and to rhetoric. This is a philological problem: How does one compose and administer a text capable of controlling its own interpretation? How does one transpose this same dynamic to the institutions? How does one transmit this notion from the institution to those who inhabit it and who are, after all, the subjects of the legal science?It is therefore fitting to examine legislation about legal discourse, which is, in itself, the theory of law—not, however, in its abstract aspects but rather in the concrete elements of the formation of a legal vocabulary, in the way in which words, whose semantic and hermeneutic problems are clear, give life to this legal vocabulary. How is legal discourse constructed? In what way is it transmitted? What are the consequences of its dissemination? In what way is the law in charge of words, in particular, those expressed in the institutions?Perhaps the problem is philological, in the sense supposed by Giambattista Vico. Vico, in his Principi per una scienza nuova [1: 10] proposed that the study of philosophy, as a science of truth could not exist independently without a philology, the origin of the conscience of certainty (coscienza del certo). Attaching myself, then, to this idea of certainty (although not, of course, from Vico’s perspective) throughout this study I shall call “the space of certainty” the theoretical and conceptual construction (which is of both a philological and textual character) stipulated by the legislator in an attempt to control the distinct concepts related to the legal word, its institutional statute and its legal, moral, and cultural hermeneutics. I shall thus attempt to understand the meaning of this space of certainty, in what way it has been constructed, and how it affects legal, political, social, and cultural mechanisms. [End Page 64]1Law and KingIn the first title of the first Partida, Alfonso outlines the virtues of the laws.2 In addition, this first law discusses the overall structure of the Siete partidas, as if, in fact, they were nothing more than a lengthy and virtuous discourse about the law. It makes sense as the Partidas are not only a legal code capable of being enforced but also an enormous manual on legal theory. The law(s) and legal doctrine, then, come together to form the first expression of legal science. Going further than compilations of Roman law such as the Liber augustalis,3 further than the scientific expressions of jurisprudence of specialists from Bologna, the Île-de-France, and Orleans utroque iure,4 the Partidas—and I should like to insist on this—can be considered a constitutional legal text. In this sense the Partidas attempts to regulate the actual material from which the laws are made: language. Put another way, the text of the Partidas is at once legality, establishment, and discussion of legal language... (shrink)