The article deals with present day challenges related to the employ of technology in order to reduce the exposition of the human being to the risks and vulnerability of his or her existential condition. According to certain transhumanist and posthumanist thinkers, as well as some supporters of human enhancement, essential features of the human being, such as vulnerability and mortality, ought to be thoroughly overcome. The aim of this article is twofold: on the one hand, we wish to carry out (...) an enquiry into the ontological and ethical thinking of Hans Jonas, who was among the first to address these very issues with great critical insight; on the other hand, we endeavour to highlight the relevance of Jonas’ reflections to current challenges related to bioscience and biotechnological progress. In this regard, we believe that the transcendent and metaphysical relevance of the «image of man» introduced by Jonas is of paramount importance to understand his criticism against those attempts to ameliorate the human being by endangering his or her essence. (shrink)

How to achieve responsibility through philosophical dialogue? This is indeed a core issue of today's democracy. In this regard, education plays an important role.

The present article tries to analyze the role played in Hans Jonas’ ethical reflection by religious—namely, Jewish—tradition. Jonas goes in search of an ultimate foundation for his ethics and his theory of the good in order to face the challenges currently posed by technology’s nihilistic attitude towards life and ethics. Jonas’ ethical investigation enters into the domain of metaphysics, which offers an incomparable contribution to the philosophical endeavour, without undermining its overall independence. In this way, Jewish categories—such as remorse, shame, (...) sacrifice, repentance, and selfrestraint—strengthen the philosopher’s ethical reflection, since he considers them to be essential moral values for the technological epoch. Yet the reference to the Jewish tradition supplies Jonas’ ethical endeavour with a powerful but only hypothetical insight into transcendence. (shrink)

The book focuses on the thinking of the philosopher of Jewish origins, Hans Jonas (1903-1993), and precisely on his “philosophical biology”. The overall thesis is that this topic, which occupies the second stage of his thinking, is coherent with the previous phase (which focused on ancient Gnosticism), as well as with the following (which was dedicated to the ethics of responsibility). The main evidence supporting this thesis is the key notion of “ontological revolution”, the development of which I try to (...) analyse in Jonas’ published and unpublished writings. This is the first innovative feature of the research. The second is my attempt to compare Jonas’ ideas of life and organism with the reflections of thinkers such as Aristotle, Spinoza, and Whitehead. (shrink)

The article begins with the redefinition of complexity and risk. Indeed, phenomena such as earthquakes, pandemics, ecological emergencies, and issues related to the development of technology highlight the unique and reciprocal relationship between complexity and risk. However, modernity endeavoured to simplify complexity and to erase the connection of the latter with any issue concerning risk. Despite its negative results, whose ineffectiveness and dangerousness have at the present become unmistakably clear, the attitude in favour of simplification succeeded in becoming the forma (...) mentis of modern science, politics, culture, ethics, etc. Yet, in the last decades a new trend seems to have arisen, namely the one focusing on the “governance” of complexity and of the related risks. If considered under a socio-political point of view, its aim is to succeed in efficiency, whilst maintaining democracy. This can be achieved through the advancement of dialogue, the appreciation of diversities, and the enhancement of pluralism. Hence, the pars construens of the article focuses on the notion of responsibility, and tries to highlight its fruitfulness for the socio-political “governance” of complexity. (shrink)

The article assumes that Lipman’s paradigm of ‘Philosophy for Children’ as a ‘Community of Inquiry’ is very useful in extending the range of philosophical practices and the benefits of philosophical community reflection to collective life as such. In particular, it examines the possible contribution of philosophy to the practical and ethical dynamics which, nowadays, seem to characterise many deliberative public contexts. Lipman’s idea of CI is an interesting interpretative key for such contexts. As a result, the article highlights the possibility (...) of understanding a CI essentially in terms of an ethics of responsibility. (shrink)

I wish to carry out a philosophical inquiry into the present day intercultural public spheres. The thesis I endeavour to support is that the achievement of inclusive public spheres largely depends on one’s willingness and capacity to foster the “appreciation of diversities” by first, enhancing policies and forms of cooperation between the citizens’ emotional and motivational resources, and then enhancing their cognitive competences. More specifically, my proposal is to understand such an effort from the viewpoint of post-Weberian responsibility, that is (...) of an ethics and politics that overcome the traditional divisions between theory and practice, cognition and emotion, “Verantwortung” and “Gesinnung” , and therefore succeed in enhancing the citizens’ awareness and attitudes as – in Habermas’ words – “democratic co-legislators”. The case study of Matthew Lipman’s “Philosophy for Children/Community” succeeds precisely in highlighting these results. (shrink)

Il pensiero di Hans Jonas, specie per quel che riguarda la cosiddetta “biologia filosofica”, tratta indirettamente del rapporto tra essere umano e animale. A questo riguardo, Jonas rifiuta sia l’approccio dualistico, sia quello monistico-riduzionistico e propende al contrario per una complessiva reinterpretazione del fenomeno della vita nei termini di quel che egli definisce una “rivoluzione ontologica”. In virtù di ciò, il pensatore rintraccia lo specifico del fenomeno della vita e individua nelle forme viventi una scala naturae di complessità, auto-trascendimento e (...) libertà via via crescenti, le cui tappe significative sono la vita organica, quella animale e quella umana. Per quel che concerne la forma animale, varie specie presentano “potenzialità trans-animali”, che evidenziano un ponte biologico e ontologico verso l’essere umano. In altre parole, l’animale è in qualche modo in grado di prefigurare la forma di vita specificamente umana. Tuttavia, sostiene Jonas, non appena quest’ultima fa la propria comparsa, essa è tale per cui se ne evidenzia al tempo stesso anche lo “iato metafisico” rispetto alla vita animale. La specificità umana si manifesta nella propria capacità di essere responsabile e di preservare le condizioni basilari per una vita autentica sul pianeta. (shrink)

An attempt to achieve an overall interpretation of the thinking of Hans Jonas by utilising the notions of life, ambivalence and responsibility.

The article endeavours to compare the reflections on the Shoah of two of the most celebrated intellectuals of Jewish origin of the 20th century, namely the German philosopher Hans Jonas and the Soviet writer Vasily Grossman. Both Jonas’ essay on The Concept of God after Auschwitz and Grossman’s novels and reports, such as The Hell of Treblinka, Life and Fate, and The Sistine Madonna, are characterised by a thorough enquiry into the ambivalence of the human condition, that tries to shed (...) some light on the disturbing abyss of Auschwitz and the Shoah. Although neither Jonas nor Grossman considered themselves as religious believers, thanks to the Shoah they recollected their Jewish roots and developed peculiar and innovative thoughts on the meaning and vulnerability of life, human freedom, immortality, and God. The article endeavours to highlight the main similarities and differences between these two authors, who tackled the issue of thinking after Auschwitz. (shrink)

The cognizability of the world according to Alexander von Humboldt: the experience of landscape. According to Alexander von Humboldt, geography ought to aim to go beyond the modern attitude of seeing knowledge as being the result of a spatial and temporal abstraction from the real world. Von Humboldt wishes to create a new theory of knowledge, one that instead of just simplifying, schematizing, and categorizing reality is able to highlight its multiple meanings, its diversity of perspectives, and its hermeneutical keys. (...) Von Humboldt’s project strives to achieve a universal cognition of the world (or a universal geography) by claiming the centrality of the experience of landscape. This is evidence for von Humboldt’s far-sightedness, since he anticipated the present day trend of considering landscape as a corner stone of interdisciplinary enquiries into the meaning of the world. (shrink)

A comparison between the thinking of Hans Jonas and Joseph Ratzinger on Darwinism and Intelligent Design.

I wish to carry out a philosophical inquiry into contemporary intercultural public spheres. The thesis I will support is that the achievement of inclusive public spheres (namely, with respect to our European and Western experience, the accomplishment of democracy) largely depends on one’s willingness and capacity to foster an “appreciation of diversities” by first, enhancing policies and forms of cooperation between the citizens’ emotional and motivational resources, and then enhancing their cognitive competences. More specifically, my proposal is to understand such (...) an effort from the viewpoint of postWeberian responsibility, that is of an ethics and politics that overcome the traditional divisions between theory and practice, cognition and emotion, “Verantwortung” (responsibility) and “Gesinnung” (conviction), and therefore succeed in enhancing the citizens’ awareness and attitudes as – in Habermas’ words – “democratic co-legislators”. Fiinally, a case study of Matthew Lipman’s “Philosophy for Children/Community of Inquiry” succeeds precisely in embodying this cultural project. (shrink)

The paper assumes that fear presents a certain degree of ambivalence. To say it with Hans Jonas (1903-1993), fear is not only a negative emotion, but may teach us something very important: we recognize what is relevant when we perceive that it is at stake. Under this respect, fear may be assumed as a guide to responsibility, a virtue that is becoming increasingly important, because of the role played by human technology in the current ecological crisis. Secondly, fear and responsibility (...) concern both dimensions of human action: private-individual and public-collective. What the ‘heuristics of fear’ teaches us, is to become aware of a deeper ambivalence, namely the one which characterizes as such human freedom, which may aim to good or bad, to self-preservation or self-destruction. Any public discussion concerning political or economic issues related with human action (at an individual or collective level) ought not to leave this essential idea out of consideration. (shrink)

Hans Jonas’ “philosophical biology,” although developed several decades ago, is still fundamental to the contemporary reflection upon the meaning of life in a systems thinking perspective. Jonas, in fact, closely examines the reasons of modern science, and especially of Wiener’s Cybernetics and Bertalanffy’s General System Theory, and at the same time points out their basic limits, such as their having a reductionistic attitude to knowledge and ontology. In particular, the philosopher highlights the problematic consequences of scientific reductionism for human nature. (...) As the final result of an overall process of naturalization, the essence of the human being is reduced to its quantitative features only, while the “meaning” of life as such becomes no different from the “fact” of its material consistency. However, the problem is that by such a process, the human being is deprived of his specificity. (shrink)

Grounding contingentism is the doctrine according to which grounds are not guaranteed to necessitate what they ground. In this paper I will argue that the most plausible version of contingentism is incompatible with the idea that the grounding relation is transitive, unless either ‘priority monism’ or ‘contrastivism’ are assumed.

According to ‘Strong Composition as Identity’, if an entity is composed of a plurality of entities, it is identical to them. As it has been argued in the literature, SCAI appears to give rise to some serious problems which seem to suggest that SCAI-theorists should take their plural quantifier to be governed by some ‘weak’ plural comprehension principle and, thus, ‘exclude’ some kinds of pluralities from their plural ontology. The aim of this paper is to argue that, contrary to what (...) may appear at first sight, the assumption of a weak plural comprehension principle is perfectly compatible with plural logic and the common uses of plural quantification. As I aim to show, SCAI-theorists can simply claim that their theory must be understood as formulated by means of the most ‘joint-carving’ plural quantifier, thus leaving open the possibility of other, less joint-carving, ‘unrestricted’ plural quantifiers. In the final part of the paper I will also suggest that SCAI-theorists should not only allow for singular quantification over pluralities of entities, but also for plural quantification over ‘super-pluralities’ of entities. (shrink)

According to Composition is Identity, a whole is literally identical to the plurality of its parts. According to Mereological Nihilism, nothing has proper parts. In this note, it is argued that Composition is Identity can be shown to entail Mereological Nihilism in a much more simple and direct way than the one recently proposed by Claudio Calosi.

In this paper I will present three arguments (based on the notions of constitution, metaphysical reality, and truth, respectively) with the aim of shedding some new light on the structure of Fine’s (2005, 2006) ‘McTaggartian’ arguments against the reality of tense. Along the way, I will also (i) draw a novel map of the main realist positions about tense, (ii) unearth a previously unnoticed but potentially interesting form of external relativism (which I will label ‘hyper-presentism’) and (iii) sketch a novel (...) interpretation of Fine’s fragmentalism (which I contrast with Lipman’s 2015, 2016b, forthcoming). (shrink)

In this paper I address two important objections to the theory called ‘ Composition as Identity’ : the ‘wall-bricks-and-atoms problem’, and the claim that CAI entails mereological nihilism. I aim to argue that the best version of CAI capable of addressing both problems is the theory I will call ‘Atomic Composition as Identity’ which consists in taking the plural quantifier to range only over proper pluralities of mereological atoms and every non-atomic entity to be identical to the plurality of atoms (...) it fuses. I will proceed in three main steps. First, I will defend Sider’s Composition as identity. Oxford University Press, Oxford, pp 211–221, 2014) idea of weakening the comprehension principle for pluralities and I will show that :219–235, 2016a) it can ward off both the WaBrA problem and the threat of mereological nihilism. Second, I will argue that CAI-theorists should uphold an ‘atomic comprehension principle’ which, jointly with CAI, entails that there are only proper pluralities of mereological atoms. Finally, I will present a novel reading of the ‘one of’ relation that not only avoids the problems presented by Yi Composition as identity. Oxford University Press, Oxford, pp 169–191, 2014) and Calosi :429–443, 2016b, Am Philos Q 55:281–292, 2018) but can also help ACAI-theorists to make sense of the idea that a composite entity is both one and many. (shrink)

Fine (2005, 2006) has presented a ‘trilemma’ concerning the tense-realist idea that reality is constituted by tensed facts. According to Fine, there are only three ways out of the trilemma, consisting in what he takes to be the three main families of tense-realism: ‘presentism’, ‘(external) relativism’, and ‘fragmentalism’. Importantly, although Fine characterises tense-realism as the thesis that reality is constituted (at least in part) by tensed facts, he explicitly claims that tense realists are not committed to their fundamental existence. Recently, (...) Correia and Rosenkranz (2011, 2012) have claimed that Fine’s tripartite map of tense realism is incomplete as it misses a fourth position they call ‘dynamic absolutism’. In this paper, I will argue that dynamic absolutists are committed to the irreducible existence of tensed facts and that, for this reason, they face a similar trilemma concerning the notion of fact-content. I will thus conclude that a generalised version of Fine’s trilemma, concerning both fact-constitution and fact-content, is indeed inescapable. (shrink)

What is the relation between parts taken together and the whole that they compose? The recent literature appears to be dominated by two different answers to this question, which are normally thought of as being incompatible. According to the first, parts taken together are identical to the whole that they compose. According to the second, the whole is grounded in its parts. The aim of this paper is to make some theoretical room for the view according to which parts ground (...) the whole they compose while being, at the same time, identical to it. (shrink)

This paper presents a semantical analysis of the Weak Kleene Logics Kw3 and PWK from the tradition of Bochvar and Halldén. These are three-valued logics in which a formula takes the third value if at least one of its components does. The paper establishes two main results: a characterisation result for the relation of logical con- sequence in PWK – that is, we individuate necessary and sufficient conditions for a set.

This paper is concerned with certain ontological issues in the foundations of geographic representation. It sets out what these basic issues are, describes the tools needed to deal with them, and draws some implications for a general theory of spatial representation. Our approach has ramifications in the domains of mereology, topology, and the theory of location, and the question of the interaction of these three domains within a unified spatial representation theory is addressed. In the final part we also consider (...) the idea of non-standard geographies, which may be associated with geography under a classical conception in the same sense in which non-standard logics are associated with classical logic. (shrink)

The possibility of changing the past by means of time-travel appears to depend on the possibility of distinguishing the past as it is ‘before’ and ‘after’ the time-travel. So far, all the metaphysical models that have been proposed to account for the possibility of past-changing time-travels operate this distinction by conceiving of time as multi-dimensional, and thus by significantly inflating our metaphysics of time. The aim of this article is to argue that there is an intuitive sense in which past-changing (...) time-travels are metaphysically possible also in one-dimensional time. (shrink)

The aim of this study is to address the “Grounding Grounding Problem,” that is, the question as to what, if anything, grounds facts about grounding. I aim to show that, if a seemingly plausible principle of modal recombination between fundamental facts and the principle customarily called “Entailment” are assumed, it is possible to prove not only that grounding facts featuring fundamental, contingent grounds are derivative but also that either they are partially grounded in the grounds they feature or they are (...) “abysses”. (shrink)

This paper discusses three relevant logics that obey Component Homogeneity - a principle that Goddard and Routley introduce in their project of a logic of significance. The paper establishes two main results. First, it establishes a general characterization result for two families of logic that obey Component Homogeneity - that is, we provide a set of necessary and sufficient conditions for their consequence relations. From this, we derive characterization results for S*fde, dS*fde, crossS*fde. Second, the paper establishes complete sequent calculi (...) for S*fde, dS*fde, crossS*fde. Among the other accomplishments of the paper, we generalize the semantics from Bochvar, Hallden, Deutsch and Daniels, we provide a general recipe to define containment logics, we explore the single-premise/single-conclusion fragment of S*fde, dS*fde, crossS*fdeand the connections between crossS*fde and the logic Eq of equality by Epstein. Also, we present S*fde as a relevant logic of meaninglessness that follows the main philosophical tenets of Goddard and Routley, and we briefly examine three further systems that are closely related to our main logics. Finally, we discuss Routley's criticism to containment logic in light of our results, and overview some open issues. (shrink)

In its simplest form, a Spritz is an aperitif made with (sparkling) water and (white) wine. A ‘gunky Spritz’, as I will call it, is a Spritz in which the water and the wine are mixed through and through, so that every proper part of the Spritz has a proper part containing both water and wine. In the literature on the notion of location the possibility of mixtures like a gunky Spritz has been thought of as either threatening seemingly intuitive (...) locative principles, or as requiring the position of multiple primitive locative relations. In this paper I present a new theory of location which assumes as primitive only the notion of pervasive location and show that it can account for the possibility of gunky Spritz in an intuitive and adequate way. (shrink)

ABSTRACTThe ability of providing an adequate supervenience base for tensed truths may seem to be one of the main theoretical advantages of both the growing-block and the moving-spotlight theory of time over presentism. However, in this paper I will argue that some propositions appear to be as problematic for growing-block theorists as past-directed propositions are for presentists, namely propositions stating that nothing will be the case in the future. Furthermore, I will show that the moving-spotlight theory can adequately address all (...) the main supervenience challenges that can be levelled against A-theories of time. I will, thus, conclude that, at least as far as the supervenience principle is concerned, the moving-spotlight theory should be preferred over both presentism and the growing-block theory. (shrink)

Alessandro Torza argues that Ted Sider’s Lewisian argument against vague existence is insufficient to rule out the possibility of what he calls ‘super-vague existence’, that is the idea that existence is higher-order vague, for all orders. In this chapter it is argued that the possibility of super-vague existence is ineffective against the conclusion of Sider’s argument since super-vague existence cannot be consistently claimed to be a kind of linguistic vagueness. Torza’s idea of super-vague existence seems to be better suited to (...) model vague existence under the assumption that vague existence is instead a form of ontic indeterminacy, contra what Ted Sider and David Lewis assume. (shrink)

The supervaluationist approach to branching time (‘SBT-theory’) appears to be threatened by the puzzle of retrospective determinacy: if yesterday I uttered the sentence ‘It will be sunny tomorrow’ and only in some worlds overlapping at the context of utterance it is sunny the next day, my utterance is to be assessed as neither true nor false even if today is indeed a sunny day. John MacFarlane (“Truth in the Garden of Forking Paths” 81) has recently criticized a promising solution to (...) this puzzle for falling short of an adequate account of ‘actually’. In this paper, I aim to rebut MacFarlane's criticism. To this effect, I argue that: (i) ‘actually’ can be construed either as an indexical or as a nonindexical operator; (ii) if ‘actually’ is nonindexical, MacFarlane's criticism is invalid; (iii) there appear to be independent reasons for SBT-theorists to claim that ‘actually’ is a nonindexical expression. (shrink)

What are the relationships between an entity and the space at which it is located? And between a region of space and the events that take place there? What is the metaphysical structure of localization? What its modal status? This paper addresses some of these questions in an attempt to work out at least the main coordinates of the logical structure of localization. Our task is mostly taxonomic. But we also highlight some of the underlying structural features and we single (...) out the interactions between the notion of localization and nearby notions, such as the notions of part and whole, or of necessity and possibility. A theory of localization—we argue—is needed in order to account for the basic relations between objects and space, and runs afoul a pure part-whole theory. We also provide an axiomatization of the relation of localization and examine cases of localization involving entities different from material objects. (shrink)

In this paper I start from a definition of “culture of the artificial” which might be stated by referring to the background of philosophical, methodological, pragmatical assumptions which characterizes the development of the information processing analysis of mental processes and of some trends in contemporary cognitive science: in a word, the development of AI as a candidate science of mind. The aim of this paper is to show how (with which plausibility and limitations) the discovery of the mentioned background might (...) be dated back to a period preceding the cybernetic era, the decade 1930–1940 at least. Therefore a somewhat detailed analysis of Hull's “robot approach” is given, as well as of some of its independent and future developments. -/- Reprinted in R.L. Chrisley (ed.), Artificial Intelligence: Critical Concepts in Cognitive Science, vol. 1, Routledge, London and New York, 2000, pp. 301-326. (shrink)

This chapter analyzes the concept of an event and of event representation as an umbrella notion. It provides an overview of different ways events have been dealt with in philosophy, linguistics, and cognitive science. This variety of positions has been construed in part as the result of different descriptive and explanatory projects. It is argued that various types of notions — common-sense, theoretically revised, scientific, and internalist psychological — be kept apart.

In this article I examine the main conceptions of public reason in contemporary political philosophy in order to set the frame for appreciating the novelty of the pragmatist understanding of public reason as based upon the notion of consequences and upon a theory of rationality as inquiry. The approach is inspired by Dewey but is free from any concern with history of philosophy. The aim is to propose a different understanding of the nature of public reason aimed at overcoming the (...) limitations of the existing approaches. Public reason is presented as the proper basis for discussing contested issues in the broad frame of deep democracy. (shrink)

Ordinary reasoning about space—we argue—is first and foremost reasoning about things or events located in space. Accordingly, any theory concerned with the construction of a general model of our spatial competence must be grounded on a general account of the sort of entities that may enter into the scope of the theory. Moreover, on the methodological side the emphasis on spatial entities (as opposed to purely geometrical items such as points or regions) calls for a reexamination of the conceptual categories (...) required for this task. Building on material presented in an earlier paper, in this work we offer some examples of what this amounts to, of the difficulties involved, and of the main directions along which spatial theories should be developed so as to combine formal sophistication with some affinity with common sense. (shrink)

The project of a 'naive physics' has been the subject of attention in recent years above all in the artificial intelligence field, in connection with work on common-sense reasoning, perceptual representation and robotics. The idea of a theory of the common-sense world is however much older than this, having its roots not least in the work of phenomenologists and Gestalt psychologists such as K hler, Husserl, Schapp and Gibson. This paper seeks to show how contemporary naive physicists can profit from (...) a knowledge of these historical roots of their discipline, which are shown to imply above alla critique of the set-theory-based models of reality typically presupposed by contemporary work in common-sense ontology [1]. (shrink)

In this paper, we extend the expressive power of the logics K3, LP and FDE with anormality operator, which is able to express whether a for-mula is assigned a classical truth value or not. We then establish classical recapture theorems for the resulting logics. Finally, we compare the approach via normality operator with the classical collapse approach devisedby Jc Beall.

Since the second half of the XXth century, researchers in cybernetics and AI, neural nets and connectionism, Artificial Life and new robotics have endeavoured to build different machines that could simulate functions of living organisms, such as adaptation and development, problem solving and learning. In this book these research programs are discussed, particularly as regard the epistemological issues of the behaviour modelling. One of the main novelty of this book consists of the fact that certain projects involving the building of (...) simulative machine models before the advent of cybernetics are been investigated for the first time, on the basis of little known, and sometimes completely forgotten or unpublished, texts and figures. These pre-cybernetics projects can be considered as steps toward the “discovery” of a modelling methodology that has been fully developed by those more recent research programs, and that shares some of their central goals and key methodological proposals. -/- More info in Springer link: http://www.springer.com/new+%26+forthcoming+titles+%28default%29/book/978-1-4020-0606-7 -/- This book is the English translation of La scoperta dell'artificiale, Dunod/Masson, Milan, 1998. (shrink)

The book is divided into three parts. The first, containing three papers, focuses on the characterization of the central tenets of previii sentism (by Neil McKinnon) and eternalism (by Samuel Baron and Kristie Miller), and on the ‘sceptical stance’ (by Ulrich Meyer), a view to the effect that there is no substantial difference between presentism and eternalism. The second and main section of the book contains three pairs of papers that bring the main problems with presentism to the fore and (...) outlines its defence strategy. Each pair of papers in this section can be read as a discussion between presentists and eternalists, wherein each directly responds to the arguments and objections offered by the other. This is a discussion that is sometimes absent in the literature, or which is at best carried out in a fragmented way. The first two papers of the section deal with the problem of the compatibility of Special Relativity Theory (SRT) and presentism. SRT is often considered to be a theory that contradicts the main tenet of presentism, thereby rendering presentism at odds with one of our most solid scientific theories. Christian Wüthrich’s paper presents arguments for the incompatibility of the two theories (SRT and presentism) within a new framework that includes a discussion of further complications arising from the theory of Qauantum Mechanics. Jonathan Lowe’s paper, by contrast, develops new general arguments against the incompatibility thesis and replies to Wüthrich’s paper. The second pair of papers focuses on the problem that presentists face, in providing grounds for past tensed truths. In the first (by Matthew Davidson), new arguments are provided to defend the idea that the presentist cannot adequately explain how what is now true about the past is grounded, since for the presentist the past is completely devoid of ontological ground. The second paper (by Brian Kierland) takes up the challenge of developing a presentist explanation of past truths, beginning by outlining some existing views in the literature before advancing an original proposal. (shrink)

Classically, truth and falsehood are opposite, and so are logical truth and logical falsehood. In this paper we imagine a situation in which the opposition is so pervasive in the language we use as to threaten the very possibility of telling truth from falsehood. The example exploits a suggestion of Ramsey’s to the effect that negation can be expressed simply by writing the negated sentence upside down. The difference between ‘p’ and ‘~~p’ disappears, the principle of double negation becomes trivial, (...) and the truth/falsehood opposition is up for grabs. Our moral is that this indeterminacy undermines the idea of inferential role semantics. (shrink)

Since the early eighties, computationalism in the study of the mind has been “under attack” by several critics of the so-called “classic” or “symbolic” approaches in AI and cognitive science. Computationalism was generically identified with such approaches. For example, it was identified with both Allen Newell and Herbert Simon’s Physical Symbol System Hypothesis and Jerry Fodor’s theory of Language of Thought, usually without taking into account the fact ,that such approaches are very different as to their methods and aims. Zenon (...) Pylyshyn, in his influential book Computation and Cognition, claimed that both Newell and Fodor deeply influenced his ideas on cognition as computation. This probably added to the confusion, as many people still consider Pylyshyn’s book as paradigmatic of the computational approach in the study of the mind. Since then, cognitive scientists, AI researchers and also philosophers of the mind have been asked to take sides on different “paradigms” that have from time to time been proposed as opponents of (classic or symbolic) computationalism. Examples of such oppositions are: -/- computationalism vs. connectionism, computationalism vs. dynamical systems, computationalism vs. situated and embodied cognition, computationalism vs. behavioural and evolutionary robotics. -/- Our preliminary claim in section 1 is that computationalism should not be identified with what we would call the “paradigm (based on the metaphor) of the computer” (in the following, PoC). PoC is the (rather vague) statement that the mind functions “as a digital computer”. Actually, PoC is a restrictive version of computationalism, and nobody ever seriously upheld it, except in some rough versions of the computational approach and in some popular discussions about it. Usually, PoC is used as a straw man in many arguments against computationalism. In section 1 we look in some detail at PoC’s claims and argue that computationalism cannot be identified with PoC. In section 2 we point out that certain anticomputationalist arguments are based on this misleading identification. In section 3 we suggest that the view of the levels of explanation proposed by David Marr could clarify certain points of the debate on computationalism. In section 4 we touch on a controversial issue, namely the possibility of developing a notion of analog computation, similar to the notion of digital computation. A short conclusion follows in section 5. (shrink)

Leibniz’s question “why is there something rather than nothing?”, also known as the Primordial Existential Question, has often been the focus of intense philosophical controversy. While some authors take it to pose a profound metaphysical puzzle, others denounce the alleged lack of meaning or the inconceivability of the idea of nothingness. In a series of articles, Adolf Grünbaum develops an empirically informed critique with the aim to demonstrate that the Primordial Existential Question poses a “non-issue” which does not require explanation. (...) Grünbaum’s critique prompted heated debates in the recent literature. In this paper, I examine each step of Grünbaum’s reasoning and argue that it fails to show that the Primordial Existential Question is ill-founded. Moreover, I identify and rebut several strategies that one may employ to amend Grünbaum’s critique. In doing so, I address various issues related to the Primordial Existential Question, including the alleged need for its proponents to rely on contentious metaphysical presuppositions and the purported availability of empirical evidence which answers or dissolves such a question. (shrink)

This paper discusses the possibility of an absolute vacuum - a space without any substance. The motivation of this study is the contrast between most philosophers, up to Descartes, who stated that a vacuum was impossible, and the 17th century change of outlook, when the possibility and effective existence of the vacuum was accepted after the experiments of Torricelli and Pascal. This article attempts to show that, contrary to the received opinion, the acceptance of an ether is preferable to the (...) acceptance of a vacuum for several reasons. First: it is impossible to provide an empirical proof of the non-existence of the ether; second, an absolute vacuum is unthinkable; third, the ether concept is useful for the understanding of physical phaenomena; and fourth, the hypothesis of an ether in apparently void spaces is useful for the future development of science. The paper also endeavours to show that no recent advance of science changed those conclusions and that no future development can change them. (shrink)

S’inspirant de Memorias. Entre dos mundos, ce texte se veut un témoignage et des commentaires de la perspective pédagogique développée par Mario Bunge dans le cadre de son enseignement de philosophie des sciences à l’Université de Buenos Aires dans les années soixante du siècle dernier. Perspective socratique du métier de philosophe qui ne renvoie cependant pas à une entreprise de dévoilement de la vérité, mais plutôt aux conditions de sa construction.

Is any unified theory of brain function possible? Following a line of thought dat- ing back to the early cybernetics (see, e.g., Cordeschi, 2002), Clark (in press) has proposed the action-oriented Hierarchical Predictive Coding (HPC) as the account to be pursued in the effort of gain- ing the “Grand Unified Theory of the Mind”—or “painting the big picture,” as Edelman (2012) put it. Such line of thought is indeed appealing, but to be effectively pursued it should be confronted with experimental (...) findings and explana- tory capabilities (Edelman, 2012). The point we are making in this note is that a brain with predictive capa- bilities is certainly necessary to endow the agent situated in the environment with forethought or foresight, a crucial issue to outline the unified account advocated by Clark. But the capacity for fore- thought is deeply entangled with the capacity for emotions and when emotions are brought into the game, cogni- tive functions become part of a large-scale functional brain network. However, for such complex networks a consistent view of hierarchical organization in large-scale functional networks has yet to emerge (Bressler and Menon, 2010), whilst heterarchical organization is likely to play a strategic role (Berntson et al., 2012). This raises the necessity of a multilevel approach that embraces causal relations across levels of explanation in either direc- tion (bottom–up or top–down), endorsing mutual calibration of constructs across levels (Berntson et al., 2012). Which, in turn, calls for a revised perspective on Marr’s levels of analysis framework (Marr, 1982). In the following we highlight some drawbacks of Clark’s proposal in address- ing the above issues. (shrink)

Considering topology as an extension of mereology, this paper analyses topological variants of mereological essentialism (the thesis that an object could not have different parts than the ones it has). In particular, we examine de dicto and de re versions of two theses: (i) that an object cannot change its external connections (e.g., adjacent objects cannot be separated), and (ii) that an object cannot change its topological genus (e.g., a doughnut cannot turn into a sphere). Stronger forms of structural essentialism, (...) such as morphological essentialism (an object cannot change shape) and locative essentialism (an object cannot change position) are also examined. (shrink)