Artykuł jest dygresyjnym przeglądem kilku internetowych witryn muzeów, wybranych i uporządkowanych tematycznie według klucza naukowych zainteresowań autora, zwłaszcza w kontekście sposobu udostępniania online zgromadzonych zbiorów. Instytucje muzealne proponują rozmaite metody i zakresy prezentacji: od najprostszego zamieszczenia fotografii kilkudziesięciu najbardziej spektakularnych zabytków (tzw. _highlights of the collection_) po profesjonalne bazy danych obejmujące całość zasobów wraz z obiektami magazynowymi, wspomagane zaawansowanymi narzędziami przeszukiwania i w pełni naukową deskrypcją. Bez wątpienia w obliczu tego faktu poszczególne muzea różnie definiują profil adresatów swoich kolekcji prezentowanych (...) online. (shrink)

Leszek Kolakowski delves into some of the most intellectually vigorous questions of our time in this remarkable collection of essays garnished with his characteristic wit. Ten of the essays have never appeared before in English. "Exemplary.

The problem of idealization in empirical sciences is very rarely taken up in works concerned with the methodology of those sciences. It seems to be common knowledge that in advanced natural sciences references are made to concepts such as “perfectly rigid body,” “material point,” “perfect gas,” etc., but it remains a fact that the most important methodological concepts, concepts which have determined the present-day form of the philosophy of science, have been advanced without regard to the peculiarities of the procedure (...) mentioned above. And yet a moment's consideration suffices to raise doubts as to Carnap's physicalism and/or Popper's falsificationism if we just realize the trivial and commonly known truth that empirical sciences resort to idealizationism. For how are we to imagine a reduction of idealizational concepts to observation terms? And how are we to imagine that theorems which include idealizational concepts imply observation statements which refute, or at least are at variance with, those theorems? But it is a fact that such doubts have neither been raised by the authors of the conceptions mentioned above, nor have they been raised against them. (shrink)

Wychodząc od metaforycznego (figuralnego) ujęcia problemu zła, w oparciu o wybrane przemyślenia Leszka Kołakowskiego, rozważania składające się na artykuł zmierzają do namysłu nad „złem w polityce” w sensie niedomagań i nadużyć wolności: pokus władzy autokratycznej i totalitarnej. Dotyczą antropologicznego i politycznego przekraczania granic wolności kosztem (aż do zniesienia) wolności innych. Evil Politics or Trouble with the Devil. Reflections on the Political Demonology of Leszek Kołakowski Proceeding from a metaphorical (figurative) account of the problem of evil, and based on (...) class='Hi'>Leszek Kołakowski’s selected thoughts, this paper’s considerations aim to deliberate on “evil in politics” in the spirit of the shortcomings and excesses of freedom: namely, the lure of autocratic and totalitarian power. At issue is how the bounds of freedom are anthropologically and politically transgressed at the expense (to the point of abolishing) the freedom of others. (shrink)

In recent years part of the literature on probabilistic causality concerned notions stemming from Reichenbach’s idea of explaining correlations between not directly causally related events by referring to their common causes. A few related notions have been introduced, e.g. that of a “common cause system” (Hofer-Szabó and Rédei in Int J Theor Phys 43(7/8):1819–1826, 2004) and “causal (N-)closedness” of probability spaces (Gyenis and Rédei in Found Phys 34(9):1284–1303, 2004; Hofer-Szabó and Rédei in Found Phys 36(5):745–756, 2006). In this paper we (...) introduce a new and natural notion similar to causal closedness and prove a number of theorems which can be seen as extensions of earlier results from the literature. Most notably we prove that a finite probability space is causally closed in our sense iff its measure is uniform. We also present a generalisation of this result to a class of non-classical probability spaces. (shrink)

We show, under the assumption that factoring is hard, that a model of PV exists in which the polynomial hierarchy does not collapse to the linear hierarchy; that a model of S21 exists in which NP is not in the second level of the linear hierarchy; and that a model of S21 exists in which the polynomial hierarchy collapses to the linear hierarchy. Our methods are model-theoretic. We use the assumption about factoring to get a model in which the weak (...) pigeonhole principle fails in a certain way, and then work with this failure to obtain our results. As a corollary of one of the proofs, we also show that in S21 the failure of WPHP (for Σb1 definable relations) implies that the strict version of PH does not collapse to a finite level. (shrink)

The present paper is intended to take up the basic issue in Marxist epistemology: does the development of human cognition include mechanisms that ensure the attainment of, or approximation to, the absolute truth?But to take up this issue we have to define the concept of absolute truth. This is why the paper begins with comment on the assumptions we adopt. This is followed by explanations of the concept of the absolute truth and that of relative truth and some of derivative (...) concepts, too. Section 3 is concerned with the problem of whether the absolute truth is attainable, and with the role played in the process by the correspondence principle, which is reconstructed in a specified way. (shrink)

We introduce the notion of a Minkowskian Branching Structure ("MBS" for short). Then we prove some results concerning the phenomenon of funny business in its finitary and infinitary variants.

This book was written with the purpose of revealing the duty of each individual to search for truth and the meaning of existence. Thinking requires determination and endurance. It is not easy. Above all, passion for truth is necessary for every honest seeker.

Leszek Kołakowski explores 23 questions asked by great philosophers, introducing us to the great ideas and philosophers of Western thought.

There is a remarkable similarity between some mathematical objects used in the Branching Space-Times framework and those appearing in computer science in the fields of event structures for concurrent processing and Chu spaces. This paper introduces the similarities and formulates a few open questions for further research, hoping that both BST theorists and computer scientists can benefit from the project.

The aim of the article is to indicate that there is quite strong support in the text of the Nicomachean Ethics for the argument that its inquiry is “political” rather than “ethical” in character – the textual evidence provides reasons to challenge the traditional belief that Aristotle separated ethics from politics and started the rise of ethics as a new branch of philosophy. In addition, one can posit a hypothesis that the reader, whom Aristotle had in mind while writing what (...) we now know as the Ethics, was a politician-lawgiver. So the reader aimed at in the Ethics is the same as the reader aimed at in the Politics – a politician-lawgiver. The Ethics and the Politics are a two-part but inseparable compound that together make a textbook for a politician-lawgiver. Both parts should be read together because the one cannot be understood correctly without the other. Aristotle studies human good not from the point of view of the individual but from the point of view of the human community. The highest human good – the philosopher’s eudaimonia – is achieved not by individual effort but as a result of good laws and a well-organized life in a polis. (shrink)

At the beginning of Book I of the Nicomachean Ethics, Aristotle says that “the good is the same for an individual as for a city”. The good in question is εὐδαιμονία – the highest good achievable for human beings. In Book X, we learn that contemplative activity meets best the requirements set for eudaimonia. Even if we agree that contemplative activity is the good for an individual, how should we understand the claim that contemplation is also the good for a (...) city? I start by reminding readers that for Aristotle the Nicomachean Ethics is essentially a political enquiry and should be read together with his Politics. I focus on the teleological character of his political philosophy and the interlinking of the concepts of the good, nature, form, end and function. Then, I look at Aristotle’s two closely-connected statements that polis exists by nature and that men are political animals. Having taken into account Aristotle’s opinion regarding the imperfection of this world, which is exemplified by the vulnerability of human lives to fortune, luck and accidents, I conclude that Alasdair MacIntyre’s concept of the political community as a common project explains well how contemplation could be the end of polis. Only very few individuals can achieve the highest good and they can do it only if they have the support of the political community. But all the inhabitants of a polis structured towards achieving the highest good benefit from living in a well-ordered community whose constitution reflects the objective hierarchy of goods. (shrink)

The message is that physics has an „outward bound” of scientific inquiry in the field of cosmology. I present it in the historical development. Physics and astronomy, developing since the seventeenth century, inherited from the early Greek philosophers the conception that the Universe as a whole is invariable. In nineteenth century this conception in conjunction with the conception of eternity of the Universe gave rise to contradictions with other laws of physics indicating that cosmology is not a branch of physics (...) since the notion of the Universe is not a physical one. Cosmology returned to physics as its important branch due to the advent of general relativity theory and the discovery of the cosmic microwave background radiation. Modern cosmology generates fundamental problems creating real limits to inquiries in physics viewed as an empirical science. The very notion of the Universe shows that the scientific method reaches there limits of its applicability. Does „to exist” mean „to be observed by someone”? Should the definition of the Universe be based on a current physical theory, e.g. on Einstein’s general relativity, giving rise to a kind of mathematical instability? Is the fashionable concept of the „multiverse” a physical one or is a purely metaphysical notion in a scientific disguise? If the Universe is unique, is it meaningful to describe it in the framework of physics, which by its method always assumes that the number of objects it describes, is unlimited? Apart from these permanent philosophical problems there are concrete urgent problems generated by cosmology: the nature of dark matter and dark energy. These two species of „substance” appear only in cosmology and do not fit the laboratory physics; contrary to the three centuries long tradition of modern science, now cosmology inspires physics in a troublesome way. A separate class of limits to physics is generated by the theorem in general relativity that the Universe emerged from an initial curvature singularity of the spacetime. At the singularity the whole scientific inquiry breaks down. Cosmology of the very early Universe suggests that in its evolution two specific epochs took place, that of quantum gravity and an inflationary epoch. The underlying them two physical theories are incomplete and seem to be inherently untestable. Furthermore, the experimentally verifiable physics cannot explain the origin of the initial conditions determining properties of the Universe which emerged from the singularity. (shrink)

We extend a result by Gallow concerning the impossibility of following two epistemic masters, so that it covers a larger class of pooling methods. We also investigate a few ways of avoiding the issue, such as using non-convex pooling methods, employing the notion of imperfect trust or moving to higher-order probability spaces. Along the way we suggest a conceptual issue with the conditions used by Gallow: whenever two experts are considered, whether we can trust one of them is decided by (...) the features of the other! (shrink)

Polish philosopher Leszek Kolakowski is renowned worldwide for wrestling with serious philosophical conundrums with dazzling elegance. In this new book, he turns his characteristic wit to important themes of ordinary life, from the need for freedom to the wheel of fortune, from the nature of God to the ambiguities of betrayal. Extremely lucid and lacking in intellectual pretension, these essays speak in everyday language, spurring the reader’s own thoughts and providing a handle on which to debate and think about (...) the themes. The eighteen essays cover the following topics: power, fame, equality, lying, toleration, travel, virtue, collective responsibility, the wheel of fortune, betrayal, violence, boredom, freedom, luxury, God, respect for nature, superstition, and national stereotypes. (shrink)

The subject of this study considers the role played by the two models in transformation of Polish society: the knightly ethos and the bourgeois ethos. The main research question is whether these patterns are competitive with each other or complementary? Must the chivalric ethos disappear from social consciousness so that a bourgeois ethos can appear in its place, or are these value systems complementary? In the literature on the subject, as well as in common knowledge, one often encounters claims that (...) one can be either a romantic or a pragmatist, and that it is impossible to combine these two attitudes neither in the sphere of ideas nor in action. It is for this reason that the romantic approach derived from the chivalric ethos is now often analyzed within the framework of the so-called critical theory. In other words, it is deconstructed in order to make room for a paradigm that appeals to utilitarianism and constructivism. The thesis of this article is as follows: the romantic chivalric paradigm, despite many differences, is not opposed to the bourgeois paradigm. These approaches serve to realize the same values and virtues, but under different historical conditions and in dissimilar social and civilizational contexts. The text is based on the analysis of the two ethical models presented in sociological literature, in selected literary texts, and in biographies of selected historical figures. The conclusion presents findings of the undertaken analysis. In the author’s opinion, the two ethoses can play positive roles in Poland’s modernization and they are not completely mutually exclusive, as it is the case in some approaches analyzing social transformations that took place in Poland in the 19th and 20th centuries. This conclusion is also valid in the times of change that Poland is facing today. (shrink)