Impaired hand proprioception can lead to difficulties in performing fine motor tasks, thereby affecting activities of daily living. The majority of children with unilateral cerebral palsy experience proprioceptive deficits, but accurately quantifying these deficits is challenging due to the lack of sensitive measurement methods. Robot-assisted assessments provide a promising alternative, however, there is a need for solutions that specifically target children and their needs. We propose two novel robotics-based assessments to sensitively evaluate active and passive position sense of the index (...) finger metacarpophalangeal joint in children. We then investigate test-retest reliability and discriminant validity of these assessments in uCP and typically developing children, and further use the robotic platform to gain first insights into fundamentals of hand proprioception. Both robotic assessments were performed in two sessions with 1-h break in between. In the passive position sense assessment, participant's finger is passively moved by the robot to a randomly selected position, and she/he needs to indicate the perceived finger position on a tablet screen located directly above the hand, so that the vision of the hand is blocked. Active position sense is assessed by asking participants to accurately move their finger to a target position shown on the tablet screen, without visual feedback of the finger position. Ten children with uCP and 10 age-matched TDC were recruited in this study. Test-retest reliability in both populations was good >0.79). Proprioceptive error was larger for children with uCP than TDC, indicating discriminant validity. The active position sense was more accurate than passive, and the scores were not correlated, underlining the need for targeted assessments to comprehensively evaluate proprioception. There was a significant effect of age on passive position sense in TDC but not uCP, possibly linked to disturbed development of proprioceptive acuity in uCP. Overall, the proposed robot-assisted assessments are reliable, valid and a promising alternative to commonly used clinical methods, which could help gain a better understanding of proprioceptive impairments in uCP, facilitating the design of novel therapies. (shrink)

Un essai sur l'avant-garde des années 1990 (un recueil des textes les plus significatifs d'Olivier Zahm – co-fondateur et directeur du magazine Purple, concepteur de plus d'une cinquantaine d'expositions dans le monde –, écrits sur les trente dernières années, qui offre une lecture radicale de l'art, des années 1990 à nos jours).

La philosophie de l'éducation n'est pas une doctrine mais un questionnement qui remet radicalement en cause tout ce que nous croyons savoir en ce domaine. Elle s'interroge donc également sur le sens et les limites des sciences de l'éducation. Dans cet ouvrage, le lecteur trouvera une réflexion sur l'éducation, du point de vue de sa finalité et de ses institutions, ainsi qu'une interrogation sur les valeurs transmises par la pédagogie. Enfin, s'il se demande quel est le critère d'une éducation réussie, (...) le philosophe lui répondra qu'on n'en finit jamais de devenir un homme. (shrink)

Of all the things we do and say, most will never be repeated or reproduced. Once in a while, however, an idea or a practice generates a chain of transmission that covers more distance through space and time than any individual person ever could. What makes such transmission chains possible? For two centuries, the dominant view was that humans owe their cultural prosperity to their powers of imitation. In this view, modern cultures exist because the people who carry them are (...) gifted at remembering, storing and reproducing information. How Traditions Live and Die proposes an alternative to this standard view. What makes traditions live is not a general-purpose imitation capacity. Cultural transmission is partial, selective, often unfaithful. Some traditions live on in spite of this, because they tap into widespread and basic cognitive preferences. These attractive traditions spread, not by being better retained or more accurately transferred, but because they are transmitted over and over. This theory is used to shed light on various puzzles of cultural change and to explain the special relation that links the human species to its cultures. Morin combines recent work in cognitive anthropology with new advances in quantitative cultural history, to map and predict the diffusion of traditions. This book is both an introduction and an accessible alternative to contemporary theories of cultural evolution. (shrink)

The main contention of this article is that current approaches to ontological emergence are not comprehensive, in that they share a common bias that make them blind to some conceptual space available to emergence. In this article, I devise an alternative perspective on ontological emergence called ‘flat emergence’, which is free of such a bias. The motivation is twofold: not only does flat emergence constitute another viable way to fulfill the initial emergentist promise, but it also allows for making sense (...) of some emergence ascriptions that traditional accounts are unable to accommodate. (shrink)

The rise of blockchain as a techno-solution in the development sector underscores the critical imbalances of data power under ‘computational capitalism’. This article will consider the political economy of techno-solutionist and blockchain discourses in the developing world, using as its object of study blockchain projects in Pacific Island nations. Backed by US State Department soft power initiatives such as Tech Camp, these projects inculcate tech-driven notions of economic and political development, or ICT4D, while opening up new terrains for data accumulation (...) and platform control. Blockchain developers in search of proof of concept have found the development sector a fecund space for tech experimentation as they leverage a desire for tech-development and exploit regulatory weakness. The material implications of blockchain projects and discourse have been to create governance solutions which bypass the developing world state as a largely corrupting intermediary. In the Pacific, this has meant blockchain supply-chain management systems, proprietary financial innovation in humanitarian relief and an Asian Development Bank project to manage indigenous Fijian lands exclusively on the blockchain. In all these instances, discourses of solutionism, innovation and data empowerment have been deployed in aid of blockchain cartographies of control. (shrink)

Sixteen years after Kim’s seminal paper offering a welcomed analysis of the emergence concept, I propose in this paper a needed extension of Kim’s work that does more justice to the actual diversity of emergentism. Rather than defining emergence as a monolithic third way between reductive physicalism and substance pluralism, and this through a conjunction of supervenience and irreducibility, I develop a comprehensive taxonomy of the possible varieties of emergence in which each taxon—theoretical, explanatory and causal emergence—is properly identified and (...) defined. This taxonomy has two advantages. First, it is unificatory in the sense that the taxa it contains derive from a common unity principle, which consequently constitutes the very hallmark of emergentism. Second, it can be shown that the emergence taxa it contains are able to meet the challenges that are commonly considered as being the hot topics on the emergentists’ agenda, namely the positivity, the consistency and the triviality/liberality challenges. (shrink)

This book is a long-term history of optics, from early Greek theories of vision to the nineteenth-century victory of the wave theory of light. It is a clear and richly illustrated synthesis of a large amount of literature, and a reliable and efficient guide for anyone who wishes to enter this domain.

The first of its kind, this book is an in-depth history of hydrodynamics from its eighteenth-century foundations to its first major successes in twentieth-century hydraulics and aeronautics. It documents the foundational role of fluid mechanics in developing a new mathematical physics. It gives full and clear accounts of the conceptual breakthroughs of physicists and engineers who tried to meet challenges in the practical worlds of hydraulics, navigation, blood circulation, meteorology, and aeronautics, and it shows how hydrodynamics at last began to (...) fulfill its early promise to unify the different worlds of flow. Richly illustrated, technically thorough, and sensitive to cross-cultural effects, this history should attract a broad range of historians, scientists, engineers, and philosophers and be a standard reference for anyone interested in fluid mechanics. (shrink)

This book recounts a few ingenious attempts to derive physical theories by reason only, beginning with Descartes' geometric construction of the world, and finishing with recent derivations of quantum mechanics from natural axioms.

In this paper, we show that it is not a conceptual truth about laws of nature that they are immutable (though we are happy to leave it as an open empirical question whether they do actually change once in a while). In order to do so, we survey three popular accounts of lawhood—(Armstrong-style) necessitarianism, (Bird-style) dispositionalism and (Lewis-style) ‘best system analysis’—and expose the extent, as well as the philosophical cost, of the amendments that should be enforced in order to leave (...) room for the possibility of changing laws. (shrink)

Generic stereotypes are generically formulated generalizations that express a stereotype, like “Mexican immigrants are rapists” and “Muslims are terrorists.” Stereotypes like these are offensive and should not be asserted by anyone. Yet when someone does assert a sentence like this in a conversation, it is surprisingly difficult to successfully rebut it. The meaning of generic sentences is such that they can be true in several different ways. As a result, a speaker who is challenged after asserting a generic stereotype can (...) often simply dismiss the objection and maintain that the stereotype is true in a way that is compatible with the challenger’s objection. In this paper, a semantic theory for generics is presented that accounts for this type of defensive shifting in upholding generic stereotypes. This theory is then used to develop two strategies to object more efficiently. The first strategy is to immediately deny that either of the two possible ways in which a generic can be true obtains. The second strategy is to deny the satisfaction of an additional condition that is necessary for a generic sentence to be true. (shrink)

In positive theories, we have an axiom scheme of comprehension for positive formulas. We study here the “generalized positive” theory GPK∞+. Natural models of this theory are hyperuniverses. The author has shown in [2] that GPK∞+ interprets the Kelley Morse class theory. Here we prove that GPK∞+ + ACWF and the Kelley-Morse class theory with the axiom of global choice and the axiom “On is ramifiable” are mutually interpretable. This shows that GPK∞+ + ACWF is a “strong” theory since “On (...) is ramifiable” implies the existence of a proper class of inaccessible cardinals. (shrink)

We present a theoretical framework bearing on the evolution of written communication. We analyze writing as a special kind of graphic code. Like languages, graphic codes consist of stable, conventional mappings between symbols and meanings, but (unlike spoken or signed languages) their symbols consist of enduring images. This gives them the unique capacity to transmit information in one go across time and space. Yet this capacity usually remains quite unexploited, because most graphic codes are insufficiently informative. They may only be (...) used for mnemonic purposes or as props for oral communication in real-time encounters. Writing systems, unlike other graphic codes, work by encoding a natural language. This allows them to support asynchronous communication in a more powerful and versatile way than any other graphic code. Yet, writing systems will not automatically unlock the capacity to communicate asynchronously. We argue that this capacity is a rarity in non-literate societies, and not so frequent even in literate ones. Asynchronous communication is intrinsically inefficient because asynchrony constrains the amount of information that the interlocutors share and limits possibilities for repair. This would explain why synchronous, face-to-face communication always fosters the development of sophisticated codes (natural languages), but similar codes for asynchronous communication evolve with more difficulties. It also implies that writing cannot have evolved, at first, for supporting asynchronous communication. (shrink)

Some generic generalizations have both a descriptive and a normative reading. The generic sentence “Philosophers care about the truth”, for instance, can be read as describing what philosophers in fact care about, but can also be read as prescribing philosophers to care about the truth. On Leslie’s account, this generic sentence has two readings due to the polysemy of the kind term “philosopher”. In this paper, I first argue against this polysemy account of descriptive/normative generics. In response, a contextualist semantic (...) theory for generic sentences is introduced. Based on this theory, I argue that descriptive/normative generics are contextually underspecified. (shrink)

Cet article souhaite porter un regard réflexif sur le projet scientifique de constitution et d’exploitation d’un grand corpus de français parlé, les Enquêtes sociolinguistiques à Orléans, né à l’aube de la sociolinguistique et qui se développe au tournant méthodologique et épistémologique des digital humanities. Quels objectifs? Quelles données? Quels traitements? Ce sont les questions qui guident la réflexion proposée ici afin d’apporter une contribution à l’élaboration de nouvelles pratiques scientifiques dans une perspective variationniste contemporaine.

In this paper, I put forward a benchmark account of emergence in terms of non-explainability and explicate the relationship that exists between its synchronic and diachronic declinations. I develop an argument whose conclusion is that emergence is essentially a “two-faceted” notion, i.e. it always encapsulates both synchronic and diachronic dimensions. I then compare this account with alternative recent accounts of emergence that define the concept through the notion of unpredictability or topological non-equivalence.

This discussion paper responds to two recent articles in Biology and Philosophy that raise similar objections to cultural attraction theory, a research trend in cultural evolution putting special emphasis on the fact that human minds create and transform their culture. Both papers are sympathetic to this idea, yet both also regret a lack of consilience with Boyd, Richerson and Henrich’s models of cultural evolution. I explain why cultural attraction theorists propose a different view on three points of concern for our (...) critics. I start by detailing the claim that cultural transmission relies not chiefly on imitation or teaching, but on cognitive mechanisms like argumentation, ostensive communication, or selective trust, whose evolved or habitual function may not be the faithful reproduction of ideas or behaviours. Second, I explain why the distinction between context biases and content biases might not always be the best way to capture the interactions between culture and cognition. Lastly, I show that cultural attraction models cannot be reduced to a model of guided variation, which posits a clear separation between individual and social learning processes. With cultural attraction, the same cognitive mechanisms underlie both innovation and the preservation of traditions. (shrink)

Emergentism is often misleadingly described as a monolithic “third way” between radical monism and pluralism. In the particular case of biology, for example, emergentism is perceived as a middle course between mechanicism and vitalism. In the present paper I propose to show that the conceptual landscape between monism and pluralism is more complex than this classical picture suggests. On the basis of two successive analyses—distinguishing three forms of tension between monism and pluralism and a distinction between derivational and functional reduction—I (...) define three different versions of emergentism that can be considered as consistent middle courses between monism and pluralism . I then emphasise the advantage of this taxonomy of the concepts of emergence by applying the results of my analysis to the historical controversy that pertains to the relationship between life and matter. (shrink)

Several philosophers have recently tried to define natural kinds in epistemic terms only. Given the persistent problems with finding a successful metaphysical theory, these philosophers argue that we would do better to describe natural kinds solely in terms of their epistemic usefulness, such as their role in supporting inductive inferences. In this paper, I argue against these epistemology-only theories of natural kinds and in favor of, at least partly, metaphysical theories. I do so in three steps. In the first section (...) of the paper, I propose two desiderata for a theory of natural kinds. In the second section, I discuss one example of a ‘general’ epistemology-only theory, proposed by Marc Ereshefsky and Thomas Reydon, and argue that theories like theirs fail to provide adequate criteria of natural kinds. In the third section, I focus on one example of a ‘specific’ epistemology-only theory, proposed by P. D. Magnus, and use it to show why such theories cannot justify the claim that the proposed epistemic criteria account for the naturalness of kinds. (shrink)

The amount of information conveyed by linguistic conventions depends on their precision, yet the codes that humans and other animals use to communicate are quite ambiguous: they may map several vague meanings to the same symbol. How does semantic precision evolve, and what are the constraints that limit it? We address this question using a multiplayer gaming app, where individuals communicate with one another in a scaled-up referential game. Here, the goal is for a sender to use black and white (...) symbols to communicate colors. We expected that the players’ mappings between symbols and colors would grow more specific over time, through a selection process whereby precise mappings are preferentially copied. We found that players become increasingly more precise in their use of symbols over the course of their interactions. This trend did not, however, result from selective copying of precise mappings. We explore the implications of this result for the study of lexical ambiguity, Zipf's Law of Meaning, and disagreements over semantic conventions. (shrink)

Cognitive Science, Volume 46, Issue 2, February 2022.

Cultural forms are constrained by cognitive biases, and writing is thought to have evolved to fit basic visual preferences, but little is known about the history and mechanisms of that evolution. Cognitive constraints have been documented for the topology of script features, but not for their orientation. Orientation anisotropy in human vision, as revealed by the oblique effect, suggests that cardinal orientations, being easier to process, should be overrepresented in letters. As this study of 116 scripts shows, the orientation of (...) strokes inside written characters massively favors cardinal directions, and it is organized in such a way as to make letter recognition easier: Cardinal and oblique strokes tend not to mix, and mirror symmetry is anisotropic, favoring vertical over horizontal symmetry. Phylogenetic analyses and recently invented scripts show that cultural evolution over the last three millennia cannot be the sole cause of these effects. (shrink)

Dans cet article, je me propose de réfléchir, à partir de certains travaux de Thomas Nagel, sur la nature de la réflexion métaphysique. Nous qualifions certains problèmes de métaphysiques et leur attribuons par là une certaine unité. Il est cependant difficile de caractériser cette unité, et l’ensemble de ces problèmes peut apparaître comme une simple rhapsodie : quel rapport existe-t-il entre des questions comme « sommes-nous libres? », « quelle est la place de l’esprit dans la nature? » ou « (...) pouvons-nous connaître la réalité extérieure? ». J’avance une hypothèse à propos de l’origine, de la nature et de l’unité de ces problèmes, ainsi que de la fonction de leur examen à l’intérieur de la métaphysique, du moins à propos de certains d’entre eux, ceux qui portent sur ce qui est et non sur ce en quoi consiste le fait d’être. J’essaie également de dégager de cette hypothèse une compréhension plus précise de la nature d’une part centrale de l’enquête métaphysique. (shrink)

Three experimental studies are reported in which we tested the prediction that negative emotion elicits the social sharing of the emotional experience. In two experiments, participants arrived at the laboratory with a friend and then viewed one of three film excerpts (nonemotional, moderate emotion, or intense emotion) alone. Afterwards, the participants who saw the film had an opportunity to interact with the friend and their conversation was recorded. In both experiments participants who had seen the intense emotion excerpt engaged in (...) significantly more social sharing than did participants in the other two conditions. A third experiment extended the investigation to social sharing in everyday life and replicated the previous results. Nonemotional explanations of the effects observed were also ruled out. Results are discussed in the context of the relation between emotional intensity and amount of social sharing. (shrink)

Cognitive gadgets puts forward an ambitious claim: language, mindreading, and imitation evolved by cultural group selection. Defending this claim requires more than Heyes' spirited and effective critique of nativist claims. The latest human “cognitive gadgets,” such as literacy, did not spread through cultural group selection. Why should social cognition be different? The book leaves this question pending. It also makes strong assumptions regarding cultural evolution: it is moved by selection rather than transformation; it relies on high‐fidelity imitation; it requires specific (...) cognitive adaptations to cultural learning. Each of these assumptions raises crucial yet unaddressed difficulties. (shrink)

This study examines to what extent different types of CEOs in family firms influence external and internal stakeholder-related CSP as compared to CEOs in nonfamily firms. Linking family CEO and nonfamily CEO with CSR outcomes, we provide evidence that family CEOs are positively associated with both external and internal CSR, whereas nonfamily CEOs within family firms tend to be negatively associated with both external and internal CSR. We show that the incumbent CEO’s age moderates the above relationships, indicating the existence (...) of shifting family priorities and suggesting a tendency toward CSR conformity as the salience of succession concerns increases. (shrink)

An interesting positive theory is the GPK theory. The models of this theory include all hyperuniverses (see [5] for a definition of these ones). Here we add a form of the axiom of infinity and a new scheme to obtain GPK∞+. We show that in these conditions, we can interprete the Kelley‐Morse theory (KM) in GPK∞+ (Theorem 3.7). This needs a preliminary property which give an interpretation of the Zermelo‐Fraenkel set theory (ZF) in GPK∞+. We also see what happens in (...) the original GPK theory. Before doing this, we first need to study the basic properties of the theory. This is done in the first two sections. (shrink)

Depuis 70 ans, les avocats peuvent créer des structures d’exercice pour exercer en commun la profession d’avocats. Depuis 1990, la grande innovation réside dans la possibilité pour les avocats de structurer leur activité au moyen de sociétés commerciales particulières, les sociétés d’exercice libéral (SEL), dont l’objectif est la préservation de l’indépendance et de la déontologie des professionnels qui exercent en son sein. En 2015, les avocats sont autorisés à avoir recours aux sociétés commerciales de droit commun (SA, SAS, SARL), sauf (...) celles qui confèrent à leur associé la qualité de commerçant (SNC et SCA). Ce dispositif vient d’être réformé par la très récente ordonnance no 2023-77 du 8 février 2023 qui soulève la difficile distinction entre les SEL et les sociétés de droit commun. L’étude de cette distinction met en lumière la caractéristique de ces sociétés, l’exercice en commun d’une profession libérale réglementée, dont le régime juridique est posé par des règles professionnelles d’ordre public. (shrink)

Scientists often communicate using generic generalizations, which are unquantified generalizations such as ‘Americans overestimate social class mobility’ or ‘sound waves carry gravitational mass’. In this paper, I explain the role of such generic generalizations in science, based on a novel theory about their characteristic meaning. According to this theory, a scientific generalization of the form ‘Ks are F’ says that F is one property based on which category K qualifies as a scientific kind. Because what it takes to qualify as (...) a scientific kind varies depending on the discipline, what a generic sentence entails also varies. Based on this semantic theory, I discuss the benefits and drawbacks of using generic language in science. (shrink)

Au cours de l'année 1996-97, l'École des Sciences philosophiques et religieuses a organisé une conférence et une journée d'études axées sur ce couple de notions qui condensent nombre de questions fondamentales de notre temps. Les profondes tribulations de notre époque semblent bien liées au déclin des références absolues et des idéologies sûres d'elles-mêmes et monolithiques. Mais au désenchantement moral et au désarroi de la pensée que redoublent les incertitudes économiques et politiques, répondent, un peu partout, une protestation et un refus (...) du fatalisme qui se traduisent sous la forme de la réflexion critique et sous la forme, plus spectaculaire sans doute, de l'action, animées d'une volonté de transcender les particularismes et l'égoïsme frileux. Un nouvel élan de générosité, de risque, d'aventure même surgit au nom d'idéaux humanitaires. Cette effervescence d'initiatives force à revenir sur le sens de ces idéaux qui, au fond, de manière explicite ou confuse, en appellent à la valeur nodale d'humanité. L'action humanitaire, autant pour ceux qui la portent sur le terrain de la détresse, du désarroi et de la souffrance que pour ceux qui la soutiennent de plus loin, comporte évidemment des enjeux politiques, juridiques, philosophiques, éthiques, économiques et culturels d'une telle ampleur qu'il faut s'accorder du temps pour la penser. Une telle exigence de pensée ne peut en l'occasion prendre réellement forme sans le débat et le dialogue. C'est d'un tel travail de fond que témoigne cet ouvrage. La notion d'humanité s'y trouve réinterrogée à partir des contradictions, des ambiguïtés et des effets paradoxaux des actions humanitaires ou des débats juridiques ou économiques qui tentent de s'en inspirer. Le théologien, le philosophe, le juriste, le médecin, l'économiste, chacun selon son propre mode de questionnement, s'essaient à cerner les difficultés de formuler les éléments essentiels du noyau de sens irréductible, dont sont porteuses ces deux idées :... (shrink)

Introduction to “Penser le temps/Thinking Time” english versiion.

Nous partageons le problème de savoir comment faire face à autant d'humains si semblables et si différents. A autant d'êtres qui ne peuvent interpréter le fait d'exister sans se comparer les uns aux autres, sans se distinguer les uns des autres, et qui doivent néanmoins cohabiter. Et de savoir comment ces humains peuvent d'autant plus se distinguer qu'ils prennent la place successivement les uns les autres, qu'ils reprennent les mêmes traces et doivent les réinterpréter. La première formulation du problème est (...) plutôt celle de la problématologie, dans la mesure où elle place au centre de la condition humaine le langage ordinaire, l'incessante différence de la question et de la réponse. C'est par elle que les humains mesurent ce qui les éloigne ou les rapproche et qu'ils règlent leurs désaccords. La seconde formulation du problème est plutôt celle de l'herméneutique, dans la mesure où elle place au centre de la condition humaine la condition interprétative, où chaque génération doit réinterpréter le monde où elle se découvre, pour reprendre la conversation rompue par la mort. En exposant ces deux " gestes " élémentaires du questionnement, en construisant l'écart entre deux traditions philosophiques de styles aussi hétérogènes, sans chercher à les subordonner l'un à l'autre, il s'est agi de penser une éthique de l'interrogativité. Ce sens de l'interrogation peut seul orienter nos " éthiques de responsabilité " et nous remettre ensemble dans un monde où nous comparaissons d'autant plus heureux de nous distinguer que nous nous effaçons devant l'autre. Ces deux attitudes font notre civilité. (shrink)

La 4e de couverture indique : "La pensée et l'œuvre de Pierre Bayle (1647-1706) forment une énigme, depuis toujours objet d'un conflit des interprétations. En butte aux persécutions qui précédèrent la révocation de l'édit de Nantes, il préféra l'exil à Rotterdam. Sa revue les Nouvelles de la République des lettres constitua une des premières formes de l'espace public européen, et on a pu dire de son fascinant Dictionnaire historique et critique (1696) qu'il constitua la matrice des Lumières. Dans son Commentaire (...) philosophique, où il fait l'apologie de la tolérance, il critique l'oppression religieuse de « la France toute catholique ». Mais dans son Avis aux Réfugiés, il fustige toute sédition religieuse des protestants réfugiés. L'intrication de ces deux lignes, qui remontent de Hobbes et Machiavel, d'une part, et d'autre part de Milton et Bodin, jusque chez Calvin, aide à comprendre les paradoxes politiques, et politico-théologiques, fondateurs d'une modernité aujourd'hui en crise. En cherchant à penser ces « différends », Bayle invente un style d'écriture pluraliste, délinéarisée, qui correspond au caractère oblique de son plaidoyer pour la sincérité de l'autre.". (shrink)

Paul Ricoeur a tenté une réhabilitation du politique par le souci accordé au droit. Il s'agit pour lui à la fois de faire crédit à la capacité des sujets à viser un bien commun et de tenir compte de la fragilité tant des personnes que des institutions.Ces deux orientations s'entrecroisent dans une pratique du jugement qui interprète le juste dans la singularité des situations, tranche et distribue ce qui revient à chacun et contribue à reconstruire un lien social possible.