The value in Hartmann’s point of view can be watched from the perspective of some heteronymous plans - an ideal one, which would be “the modality of existence”, and a real one, which would be “the modality of knowing” the value. In Hartmann’s expression we deal with “the absolute character” 1 of values and “the apriority of knowing the values”. It’s interfering here the problem of the validity of values. The question is if the existence of values is reduced to (...) their validity, or if they exist without the dependence of the real states of the world. This validity, for Hartmann, is strictly referring to the second plan, the real one, which is dealing with values. The values are valid “for” – we have here the connection with the existing- but they have their own “world” beside this nip with reality that we call unbiased 2 . The validity of value is aprioristic, no matter the appreciation - like one “pure subjective”, arbitrary - the apriority of value is not depending of some constrain and converge at the level of the logical schemes of thinking. In the general conception of Hartmann’s philosophy the problem of value is diminishing in the analysis of the distinction between the theory of knowledge plan, which is aiming at the subject-object domain, and the ontological one, represented by the relation objective - trans-objective. Although the philosophical analysis will be done from the perspective of the theory of knowledge domain of the relation subject-object, the problem that will concern mostly Hartman will be the objective - trans-objective report seen from the angle of one “critic ontology”, trying to solve the problem of the report between general and specific in the way of being of the axiological structure. (shrink)

We present a logical calculus for reasoning about information flow in quantum programs. In particular we introduce a dynamic logic that is capable of dealing with quantum measurements, unitary evolutions and entanglements in compound quantum systems. We give a syntax and a relational semantics in which we abstract away from phases and probabilities. We present a sound proof system for this logic, and we show how to characterize by logical means various forms of entanglement (e.g. the Bell states) and various (...) linear operators. As an example we sketch an analysis of the teleportation protocol. (shrink)

We investigate the discrete (finite) case of the Popper–Renyi theory of conditional probability, introducing discrete conditional probabilistic models for knowledge and conditional belief, and comparing them with the more standard plausibility models. We also consider a related notion, that of safe belief, which is a weak (non-negatively introspective) type of “knowledge”. We develop a probabilistic version of this concept (“degree of safety”) and we analyze its role in games. We completely axiomatize the logic of conditional belief, knowledge and safe belief (...) over conditional probabilistic models. We develop a theory of probabilistic dynamic belief revision, introducing probabilistic “action models” and proposing a notion of probabilistic update product, that comes together with appropriate reduction laws. (shrink)

We present a complete, decidable logic for reasoning about a notion of completely trustworthy evidence and its relations to justifiable belief and knowledge, as well as to their explicit justifications. This logic makes use of a number of evidence-related notions such as availability, admissibility, and “goodness” of a piece of evidence, and is based on an innovative modification of the Fitting semantics for Artemovʼs Justification Logic designed to preempt Gettier-type counterexamples. We combine this with ideas from belief revision and awareness (...) logics to provide an account for explicitly justified knowledge based on conclusive evidence that addresses the problem of omniscience. (shrink)

In this paper, I propose a new way to distinguish between indexicals, like “I” and “today”, and demonstratives, like “she” and “this”. The main test case is the second person singular pronoun “you”. The tradition would generally count it as a demonstrative, because the speaker’s intentions play a role in providing it with a semantic value. I present cross-linguistic data and explanations offered of the data in typology and semantics to show that “you” belongs on the indexical side, and argue (...) that they can be generalized to a novel criterion for distinguishing between indexicals and demonstratives. The central theoretical claim is that the semantic values of indexicals are objects which play certain utterance-related roles, which are fixed independently of the words being used in the utterance. For instance, the speaker plays the speaker role whether or not she uses the word “I”, and the addressee plays that role whether or not the speaker uses the word “you”. Demonstratives, on the other hand, pick out objects that play no such role, and are instead helped by the speaker’s word-specific intentions. (shrink)

In this paper we aim to examine a novel view on distributive justice, i.e. limitarianism, which claims that it is morally impermissible to be rich. Our main goal is to assess the two arguments provided by Ingrid Robeyns in favour of limitarianism, namely the democratic argument and the argument from unmet urgent needs and the two distinct limitarian views which these arguments give rise to. We claim that strong limitarianism, which is supported by the democratic argument, should be rejected as (...) it fails to fully instantiate the value of political equality, while having some other unattractive implications as well. By contrast, we argue that weak limitarianism, which is supported by the argument from unmet urgent needs, should be endorsed, albeit in a qualified version which also takes responsibility constraints into consideration. (shrink)

This paper presents a simple decidable logic of functional dependence LFD, based on an extension of classical propositional logic with dependence atoms plus dependence quantifiers treated as modalities, within the setting of generalized assignment semantics for first order logic. The expressive strength, complete proof calculus and meta-properties of LFD are explored. Various language extensions are presented as well, up to undecidable modal-style logics for independence and dynamic logics of changing dependence models. Finally, more concrete settings for dependence are discussed: continuous (...) dependence in topological models, linear dependence in vector spaces, and temporal dependence in dynamical systems and games. (shrink)

This paper discusses the proposal made by Lombardi and Labarca (Found Chem 7:125–148, 2005) that internal realism can secure the ontological autonomy of chemistry. I argue that internal realism is not, by itself, sufficient to accomplish this task. The fact that conceptual schemes may differ with respect to their theoretical virtues, and the possibility that the relations between them may be reductive undermine the premise that each conceptual scheme has an equal right to define its own ontology, which is a (...) key premise in Lombardi and Labarca’s proposal. (shrink)

The past decade or so has witnessed an increase in the number of philosophical discussions about emergence and reduction in science. However, many of these discussions (though not all) remain too abstract and theoretical, and are wanting with respect to concrete examples taken from the sciences. This dissertation studies the topics of reduction and emergence in the context of a case study. I focus on the case of chemistry and investigate how emergentism can help us secure the autonomy of this (...) discipline in relation to the underlying microphysics. I develop an account of emergence (called functional emergence) that is, I argue, capable of answering the question of why we have chemistry instead of just applied quantum mechanics. I argue that functionally emergent properties in chemistry -- properties that are defined by their behaviour, not by some shared microphysical constituent -- can help us defend the autonomy of chemistry; they allow for the existence of sui generis chemical regularities, which can be used in sui generis chemical explanations. Functional emergence generates difficulties for some accounts of inter-theoretic reduction, but unlike other theories of emergence it is compatible with weaker forms of reductionism. (shrink)

In this article I aim to offer a first critical assessment of the most prominent arguments in favour of restricting the voting rights of senior citizens. The first argument discussed, most thoroughly articulated by van Parijs, maintains that intergenerational justice would be improved under schemes which restrict the voting rights of senior citizens, thereby diminishing their overall electoral weight. The second argument, reconstructed from Lau's defence of child enfranchisement, maintains that the cognitive decline associated with the process of aging should (...) lead us to treat children and senior citizens identically in respect to electoral rights; thus, if we agree that children should not have the right to vote, consistency dictates that senior citizens should be disenfranchised as well. I respond to these arguments with several objections, arguing that the former relies on a number of faulty empirical premises and has deeply unattractive implications for enfranchisement once consistently applied, and that the latter fails to make empirically salient distinctions between children and senior citizens when it comes to the political domain. (shrink)

To arrive at a practical solution in the political problem, one must take the road of aesthetics because, in Schiller’s opinion, it is only through beauty that we arrive at freedom. This can only be demonstrated if we first know the principles by which reason is guided in political legislation; for, although in its aesthetic state human action is truly free and it is free to the highest degree from any constrictions, it is not, nevertheless, beyond laws. Reason and the (...) illumination of the mind, Friedrich Schiller believes, are not enough to make the truth triumph and heal the political: an education of feeling is necessary. The education of feeling represents the most stringent necessity as it becomes both a means to render efficient the improvement of ideas and judgments in practical life, and a cause generating this improvement. For, any amelioration in the sphere of the political must have in view the ennoblement of the character, and the instrument most at hand to this aim is the art of the beautiful.Beauty is the common object of the two impulses or instincts (reason and experience) and is best expressed through the concept of play; it is only play that renders man complete and develops his double nature. Making the beautiful a mere play does not involve a degradation of beauty; restricting the beautiful, which is regarded as an element of culture, to mere play is not in contradiction with the dignity of beauty, but we must look at the idea of play as it was expressed by Johan Huizinga also, and see man as the homo ludens providing the art of life. (shrink)

To arrive at a practical solution in the political problem, one must take the road of aesthetics because, in Schiller’s opinion, it is only through beauty that we arrive at freedom. This can only be demonstrated if we first know the principles by which reason is guided in political legislation; for, although in its aesthetic state human action is truly free and it is free to the highest degree from any constrictions, it is not, nevertheless, beyond laws. Reason and the (...) illumination of the mind, Friedrich Schiller believes, are not enough to make the truth triumph and heal the political: an education of feeling is necessary. The education of feeling represents the most stringent necessity as it becomes both a means to render efficient the improvement of ideas and judgments in practical life, and a cause generating this improvement. For, any amelioration in the sphere of the political must have in view the ennoblement of the character, and the instrument most at hand to this aim is the art of the beautiful.Beauty is the common object of the two impulses or instincts (reason and experience) and is best expressed through the concept of play; it is only play that renders man complete and develops his double nature. Making the beautiful a mere play does not involve a degradation of beauty; restricting the beautiful, which is regarded as an element of culture, to mere play is not in contradiction with the dignity of beauty, but we must look at the idea of play as it was expressed by Johan Huizinga also, and see man as the homo ludens providing the art of life. (shrink)

In this paper, we investigate the social herding phenomenon known as informational cascades, in which sequential inter-agent communication might lead to epistemic failures at group level, despite availability of information that should be sufficient to track the truth. We model an example of a cascade, and check the correctness of the individual reasoning of each agent involved, using two alternative logical settings: an existing probabilistic dynamic epistemic logic, and our own novel logic for counting evidence. Based on this analysis, we (...) conclude that cascades are not only likely to occur but are sometimes unavoidable by "rational" means: in some situations, the group’s inability to track the truth is the direct consequence of each agent’s rational attempt at individual truth-tracking. Moreover, our analysis shows that this is even so when rationality includes unbounded higher-order reasoning powers, as well as when it includes simpler, non-Bayesian forms of heuristic reasoning. (shrink)

Since Kaplan : 81–98, 1979) first provided a logic for context-sensitive expressions, it has been thought that the only way to construct a logic for indexicals is to restrict it to arguments which take place in a single context— that is, instantaneous arguments, uttered by a single speaker, in a single place, etc. In this paper, I propose a logic which does away with these restrictions, and thus places arguments where they belong, in real world conversations. The central innovation is (...) that validity depends not just on the sentences in the argument, but also on certain abstract relations between contexts. This enrichment of the notion of logical form leads to some seemingly counter-intuitive results: a sequence of sentences may make up a valid argument in one sequence of contexts, and an invalid one in another such sequence. I argue that this is an unavoidable result of context sensitivity in general, and of the nature of indexicals in particular, and that reflection on such examples will lead us to a better understanding of the idea of applying logic to context sensitive expressions, and thus to natural language in general. (shrink)

We construct logical languages which allow one to represent a variety of possible types of changes affecting the information states of agents in a multi-agent setting. We formalize these changes by defining a notion of epistemic program. The languages are two-sorted sets that contain not only sentences but also actions or programs. This is as in dynamic logic, and indeed our languages are not significantly more complicated than dynamic logics. But the semantics is more complicated. In general, the semantics of (...) an epistemic program is what we call aprogram model. This is a Kripke model of ‘actions’,representing the agents' uncertainty about the current action in a similar way that Kripke models of ‘states’ are commonly used in epistemic logic to represent the agents' uncertainty about the current state of the system. Program models induce changes affecting agents' information, which we represent as changes of the state model, called epistemic updates. Formally, an update consists of two operations: the first is called the update map, and it takes every state model to another state model, called the updated model; the second gives, for each input state model, a transition relation between the states of that model and the states of the updated model. Each variety of epistemic actions, such as public announcements or completely private announcements to groups, gives what we call an action signature, and then each family of action signatures gives a logical language. The construction of these languages is the main topic of this paper. We also mention the systems that capture the valid sentences of our logics. But we defer to a separate paper the completeness proof. (shrink)

We propose a refinement of STIT logic to make it suitable to model causal agency and responsibility in basic multi-agent scenarios in which agents can interfere with one another. We do this by supplementing STIT semantics, first, with action types and, second, with a relation of opposing between action types. We exploit these novel elements to represent a test for potential causation, based on an intuitive notion of expected result of an action, and two tests for actual causation from the (...) legal literature, i.e. the but-for and the NESS tests. We then introduce three new STIT operators modeling corresponding notions of causal responsibility, which we call potential, strong, and plain responsibility, and use them to provide a fine-grained analysis of a number of case studies involving both individual agents and groups. (shrink)

We propose a new model for forming and revising beliefs about unknown probabilities. To go beyond what is known with certainty and represent the agent’s beliefs about probability, we consider a plausibility map, associating to each possible distribution a plausibility ranking. Beliefs are defined as in Belief Revision Theory, in terms of truth in the most plausible worlds. We consider two forms of conditioning or belief update, corresponding to the acquisition of two types of information: learning observable evidence obtained by (...) repeated sampling from the unknown distribution; and learning higher-order information about the distribution. The first changes only the plausibility map, but leaves the given set of possible distributions essentially unchanged; the second rules out some distributions, thus shrinking the set of possibilities, without changing their plausibility ordering.. We look at stability of beliefs under either of these types of learning, defining two related notions, as well as a measure of the verisimilitude of a given plausibility model. We prove a number of convergence results, showing how our agent’s beliefs track the true probability after repeated sampling, and how she eventually gains in a sense knowledge of that true probability. Finally, we sketch the contours of a dynamic doxastic logic for statistical learning. (shrink)

In this annotated critical edition of Aristotle’s Metaphysics Lambda Stefan Alexandru draws upon many hitherto unexplored sources of the direct and indirect tradition, inter alia upon an independent Greek manuscript he has discovered in the Vatican Library.

In this article we aim to reduce the force of the expensive tastes objection to equality of welfare by constructing a pluralist welfare egalitarian theory which is not defeated by it. In the first part, we argue that Cohen’s condition of responsibility-sensitiveness is not able to provide a satisfactory rebuttal of the expensive tastes objection for at least a class of theories of justice, namely those that adhere to a methodologically fact-sensitive view. In the second part, we explore the possibility (...) of constructing a welfare egalitarian theory that gives weight to both equality and efficiency. We propose two alternatives, which integrate a utilitarian constraint and a Weak Pareto constraint on equality and show that both theories consistently differentiate between compensable and non-compensable expensive tastes, but should ultimately be rejected because of other unattractive implications. Finally, we develop a fairness-constrained theory of welfare egalitarianism and suggest that it can distinguish between compensable and non-compensable expensive tastes in both a conceptually consistent and a morally plausible manner, without generating decisive additional objections. (shrink)

In the Dune universe, humans relied on computers for thousands of years. Their immense capacity for mathematical calculations made space travel possible, until the Butlerian Jihad ended that era. Humans found the means to cognitively and physically enhance themselves to replace and outmatch intelligent machines by using nootropic drugs, revolutionary training methods, artificial selection, and genetic engineering. There are also moral and social problems that come along with human enhancement technologies. In a society where enhancement is popular, the poor would (...) have fewer chances to succeed in social and economic competitions. Many moral philosophers argue that our freedoms and basic rights are guaranteed by a special moral status, personhood. Nicholas Agar has proposed that post‐personhood could be seen as the end of a continuum of intelligence and reasoning abilities. The Bene Gesserit education and selective breeding program claims to be all about producing human beings who maximize the well‐being of all humankind. (shrink)

This paper aims to show that there is a lot of philosophy in the philosophy of chemistry—not only in the problems and questions specific to chemistry, which this science brings up in philosophical discussions, but also in the topics of wider interest like reductionism and emergence, for which chemistry proves to be an ideal case study. The fact that chemical entities and properties are amenable to a quantitative understanding, to measurement and experiment to a greater extent than those in psychology (...) or biology, makes chemistry an ideal case study for those interested in reductionism and emergence. (shrink)

We address the old question whether a logical understanding of Quantum Mechanics requires abandoning some of the principles of classical logic. Against Putnam and others (Among whom we may count or not E. W. Beth, depending on how we interpret some of his statements), our answer is a clear "no". Philosophically, our argument is based on combining a formal semantic approach, in the spirit of E. W. Beth's proposal of applying Tarski's semantical methods to the analysis of physical theories, with (...) an empirical-experimental approach to Logic, as advocated by both Beth and Putnam, but understood by us in the view of the operationalrealistic tradition of Jauch and Piron, i. e. as an investigation of "the logic of yes-no experiments" (or "questions"). Technically, we use the recently-developed setting of Quantum Dynamic Logic (Baltag and Smets 2005, 2008) to make explicit the operational meaning of quantum-mechanical concepts in our formal semantics. Based on our recent results (Baltag and Smets 2005), we show that the correct interpretation of quantum-logical connectives is dynamical, rather than purely propositional. We conclude that there is no contradiction between classical logic and (our dynamic reinterpretation of) quantum logic. Moreover, we argue that the Dynamic-Logical perspective leads to a better and deeper understanding of the "non-classicality" of quantum behavior than any perspective based on static Propositional Logic. (shrink)

In the present paper, I examine the possibility of doing phenomenology in a collaborative manner. Faced with the fading of the ethos of seeing for oneself and the predominance of meta-phenomenology passing for phenomenological work, Herbert Spiegelberg proposed the organization of phenomenology workshops. After offering an analysis of the method of philosophical workshops exemplified by a contemporary proponent of philosophical practice, Oscar Brenifier, I identify several problems such a workshop can face and several commitments that can help create the co-subjectivity (...) necessary for sym-phenomenologizing. (shrink)

The purpose of this paper is to show that the dichotomy between factual and eidetic represents one of the fundamental presuppositions of the Husserlian phenomenology. No authentic understanding of the phenomenological reduction and of its constitutive role for the transcendental phenomenology is possible without a proper understanding of this dichotomy and of its relevance for the transcendental problem. One of the questions I am going to discuss in this paper is the following: Could it be possible that both the dichotomy (...) between fact and essence and that between empirical and eidetic sciences is actually at work in Husserl’s Ideen I as a phenomenologically uninvestigated presupposition of his undertaking? The other matter I am going to address in this paper is the concept of originary givenness and the legitimacy of the knowledge based on it (which is presupposed by the “principle of all principles” which Husserl formulates in Ideen I). I will argue that this concept is a revolutionary idea not only from a philosophical standpoint, but also from a more general scientific one, because it offers a new criteria of knowledge, that of the originary donating intuition. (shrink)

In the following lines, we consider the current debate concerning the origin, the specificity and evolution of analytical philosophy. We will try to motivate the idea that the origins and evolution of analytical philosophy are not entirely due to the British philosophers; in fact, this problem cannot be properly explained in terms of a single tradition, which would come true by the removal of another one. Regarding the evolution of analytic philosophy, we identify aspects of the German tradition, the British (...) tradition as well as some new elements generated by the interaction between positivism and American pragmatism. (shrink)

Can we still talk today about a therapeutically dimension of philosophy? To what extent does Heidegger's philosophy exhibit such a dimension? And how can we reconcile this aspect of Heidegger's thought with his political involvement in 1933? These are some of the questions starting from which I will try to show that Heidegger's philosophical thought presupposes indeed a therapeutic that the thinker assumed even in his own life, a life that is not reducible to his 'unforgivable failure' in 1933. I (...) will begin with an account of Being and Time's existential analytic, the main thread of which is the distinction between Dasein's authenticity and inauthenticity. Next I will try to grasp some of the importance of Heidegger's investigation regarding Dasein's determination as a 'thinker and speaker of being (Sein)', that is, regarding ec-sistence. I will then try to account for the meaning of the 'question regarding technology' and implicitly Heidegger's solution regarding overcoming the condition of a 'gregarious slave of Ge-stell' through cultivation of the so-called 'poetic theology.' I will conclude by signaling some life-file elements of the 'faithless monk from the Black Forest' (as Heidegger is sometimes called), elements that signal a certain correspondence between the philosopher's life and the therapeutic aspect present implicitly in his philosophy. (shrink)

Stalnaker, 169–199 2006) introduced a combined epistemic-doxastic logic that can formally express a strong concept of belief, a concept of belief as ‘subjective certainty’. In this paper, we provide a topological semantics for belief, in particular, for Stalnaker’s notion of belief defined as ‘epistemic possibility of knowledge’, in terms of the closure of the interior operator on extremally disconnected spaces. This semantics extends the standard topological interpretation of knowledge with a new topological semantics for belief. We prove that the belief (...) logic KD45 is sound and complete with respect to the class of extremally disconnected spaces and we compare our approach to a different topological setting in which belief is interpreted in terms of the derived set operator. We also study belief revision as well as belief dynamics by providing a topological semantics for conditional belief and belief update modalities, respectively. Our setting based on extremally disconnected spaces, however, encounters problems when extended with dynamic updates. We then propose a solution consisting in interpreting belief in a similar way based on hereditarily extremally disconnected spaces, and axiomatize the belief logic of hereditarily extremally disconnected spaces. Finally, we provide a complete axiomatization of the logic of conditional belief and knowledge, as well as a complete axiomatization of the corresponding dynamic logic. (shrink)

We take a logical approach to threshold models, used to study the diffusion of opinions, new technologies, infections, or behaviors in social networks. Threshold models consist of a network graph of agents connected by a social relationship and a threshold value which regulates the diffusion process. Agents adopt a new behavior/product/opinion when the proportion of their neighbors who have already adopted it meets the threshold. Under this diffusion policy, threshold models develop dynamically towards a guaranteed fixed point. We construct a (...) minimal dynamic propositional logic to describe the threshold dynamics and show that the logic is sound and complete. We then extend this framework with an epistemic dimension and investigate how information about more distant neighbors’ behavior allows agents to anticipate changes in behavior of their closer neighbors. Overall, our logical formalism captures the interplay between the epistemic and social dimensions in social networks. (shrink)

We formalise a notion of dynamic rationality in terms of a logic of conditional beliefs on plausibility models. Similarly to other epistemic statements, dynamic rationality changes its meaning after every act of learning, and it may become true after players learn it is false. Applying this to extensive games, we "simulate" the play of a game as a succession of dynamic updates of the original plausibility model: the epistemic situation when a given node is reached can be thought of as (...) the result of a joint act of learning that the node is reached. We then use the notion of "stable belief, i.e. belief that is preserved during the play of the game, in order to give an epistemic condition for backward induction: rationality and common knowledge of stable belief in rationality. This condition is weaker than Aumann's and compatible with the implicit assumptions underlying Stalnaker's criticism of Aumann's proof. The "dynamic" nature of our concept of rationality explains why our condition avoids the apparent circularity of the "backward induction paradox": it is consistent to believe in a player's rationality after updating with his irrationality. (shrink)

This book contains twelve engaging philosophical lectures given by Alexandru Dragomir, most of them given during Romania’s Communist regime. The lectures deal with a diverse range of topics, such as the function of the question, self-deception, banalities with a metaphysical dimension, and how the world we live in has been shaped by the intellect. Among the thinkers discussed in these lectures are Anaxagoras, Socrates, Plato, Aristotle, Descartes, and Nietzsche. Alexandru Dragomir was a Romanian philosopher born in 1916. After (...) studying law and philosophy at the University of Bucharest, he left Romania to study for a doctorate in philosophy in Freiburg, Germany, under Martin Heidegger. He stayed in Freiburg for two years, but before defending his dissertation he was called back to Romania for military service and sent to the front. After 1948, historical circumstances forced him to become a clandestine philosopher: he was known only within a very limited circle. He died in 2002 without ever publishing anything. It was only after his death that Dragomir's notebooks came to light. His work has been published posthumously in five volumes by Humanitas, Bucharest; the present volume is the first to appear in English translation. In 2009, the Alexandru Dragomir Institute for Philosophy was founded in Bucharest as an independent research institute under the auspices of the Romanian Society for Phenomenology. (shrink)

The article conveys the portrait of a man for whom understanding was a matter of the highest spiritual intimacy, a man who continuously disregarded his possible engagement in the public life as a philosopher, finally a man whom we find, in the twilight of his life, concerned with the intricate tension between the “muteness” of philosophy (as being able “only” to double life by means of rational discourse) and religion. Alexandru Dragomir’s portrait is portrayed in comparison to another important (...) Romanian philosopher, Constantin Noica. The comparison is not accidental, since they both come to represent two paradigmatic ways of making philosophy: traditional ontology (centered around Descartes – Kant – Hegel) vs. modern phenomenology (centered around Husserl – Heidegger). (shrink)

This book is a puzzle inspired by the fresh, colourful rolling landscapes of Gruyère, where a wise man once asked me, “Does the castle over the mountain exist if nobody sees it?” “Yes,” I answered, “as we have all learned that what we know is not always what reality is.” We agree that theoretical ‘knowledge’ needs practical confirmation within reality. But what if we find reality in its very essence, intelligence or knowledge, as Neoplatonists did? The unknown would become unreal, (...) void. When investigating the existence of a cause of all things—the One origin—Damascius, the last head of Plato’s Academy (which closed in 529), writes about its complete ineffability: its lack of position and absence in relation to reality, whether intelligible or not. This void is further reversed into a theoretical framework that defines causality as a global, systemic condition of the world as a whole.About the author: Alexandru Pelin is a philosopher and cyber security professional. (shrink)