The Internet is used for every conceivable form of communication and it is therefore only natural that it should be used as an infrastructure even for protest and civil disobedience. The technology however brings with it the ability to carry out new forms of protest, in new environments and also involve changed consequences for those involved. This article looks at four criminal activities, which are used as active forms of Internet based protest in use today and analysis these forms (...) in relation to the traditional civil disobedience discourse. The analysis is done by studying four basic criteria (disobedience, civil, non‐violence and justification) found in tradition civil disobedience discourse and observing their applicability in online environments. The purpose of this article is to better understand the political protest activities carried out online and to see whether traditional civil disobedience theory embraces these new forms of political activism. (shrink)

Purpose This paper aims to examine whether there are morally defensible reasons for using or operating websites that offer distributed denial-of-service attacks on a specified target to users for a price. Booters have been linked to some of the most powerful DDoS attacks in recent years. Design/methodology/approach The authors identify the various parties associated with booter websites and the means through which booters operate. Then, the authors present and evaluate the two arguments that they claim may be used to justify (...) operating and using booters: that they are a useful tool for testing the ability of networks and servers to handle heavy traffic, and that they may be used to perform DDoS attacks as a form of civil disobedience on the internet. Findings The authors argue that the characteristics of existing booters disqualify them from being morally justified as network stress testing tools or as a means of performing civil disobedience. The use of botnets that include systems without the permission of their owners undermines the legitimacy of both justifications. While a booter that does not use any third-party systems without permission might in principle be justified under certain conditions, the authors argue that it is unlikely that any existing booters meet these requirements. Practical/implications Law enforcement agencies may use the arguments presented here to justify shutting down the operation of booters, and so reduce the number of DDoS attacks on the internet. Originality/value The value of this work is in critically examining the potential justifications for using and operating booter websites and in further exploring the ethical aspects of using DDoS attacks as a form of civil disobedience. (shrink)

With the rapid growth of informatics systems’ technology in this modern age, the Internet of Things (IoT) has become more valuable and vital to everyday life in many ways. IoT applications are now more popular than they used to be due to the availability of many gadgets that work as IoT enablers, including smartwatches, smartphones, security cameras, and smart sensors. However, the insecure nature of IoT devices has led to several difficulties, one of which is distributed denial-of-service (DDoS) attacks. IoT (...) systems have several security limitations due to their disreputability characteristics, like dynamic communication between IoT devices. The dynamic communications resulted from the limited resources of these devices, such as their data storage and processing units. Recently, many attempts have been made to develop intelligent models to protect IoT networks against DDoS attacks. The main ongoing research issue is developing a model capable of protecting the network from DDoS attacks that is sensitive to various classes of DDoS and can recognize legitimate traffic to avoid false alarms. Subsequently, this study proposes combining three deep learning algorithms, namely recurrent neural network (RNN), long short-term memory (LSTM)-RNN, and convolutional neural network (CNN), to build a bidirectional CNN-BiLSTM DDoS detection model. The RNN, CNN, LSTM, and CNN-BiLSTM are implemented and tested to determine the most effective model against DDoS attacks that can accurately detect and distinguish DDoS from legitimate traffic. The intrusion detection evaluation dataset (CICIDS2017) is used to provide more realistic detection. The CICIDS2017 dataset includes benign and up-to-date examples of typical attacks, closely matching real-world data of Packet Capture. The four models are tested and assessed using Confusion Metrix against four commonly used criteria: accuracy, precision, recall, and F-measure. The performance of the models is quite effective as they obtain an accuracy rate of around 99.00%, except for the CNN model, which achieves an accuracy of 98.82%. The CNN-BiLSTM achieves the best accuracy of 99.76% and precision of 98.90%. (shrink)

Is hactivism the new civil disobedience? I argue that most recent hacktivism isn't, and shouldn't be shoehorned into the category of civil disobedience. I sketch instead a broad matrix of electronic resistance, attentive to the many shapes and goals of hacktivism and I locate five clusters on it, briefly sketching possible dimensions of normative assessment for each: vigilantism, whistleblowing, guerrilla communication, electronic humanitarianism, and electronic civil disobedience.

Nineteenth-century Bengal was a period of change, conflict and accommodation both among the bhadralok – literally translated to mean the gentle folk, the middle classes – as well as between them and the British rulers. The world view of the bhadralok and its search for a new paradigm had its material basis in changes in existing land relations, the emergence of the market and of urban spaces as well as the spread of education and literacy. Often changes in familial patterns, (...) new roles for girls and women, their education and introduction to wider society, reflected developments in Britain. As the colonial encounter brought about a range of changes in a rapidly evolving social, economic and geographic scenario, it is important to try and understand inter-personal dynamics and at the level of individual consciousnesses. Women started reflecting and writing about their lives by the middle of the last century; the preferred form was the journal or diary. Several wrote many years later, often in widowhood. Monica Chanda was one such woman: the only daughter of Sarala and J.N. Gupta, a member of the Indian Civil Service, she was persuaded, at the age of 70, to write about her childhood, a period of her life she loved reminiscing about to her children and grandchildren. Life in the districts, her mother's role as civil service wife par excellence, early schooling and its later denial are evocatively sketched in this brief memoir. The present article will deal with constructions of a post-Victorian Indo-Anglian girlhood as perceived by Monica, using extensive quotations from the unpublished text. It will also try to trace the symbiotic relationship with the British Raj – viewed often with mixed feelings by the colonized. (shrink)

In the summer of 1941, Harald Sverdrup, the Norwegian-born Director of the Scripps Institution of Oceanography (SIO) in La Jolla, California, was denied security clearance to work on Navy-sponsored research in underwater acoustics applied to anti-submarine warfare. The clearance denial embarrassed the world renown oceanographer and Arctic explorer, who repeatedly offered his services to the U.S. government only to see scientists of far lesser reputation called upon to aid the war effort. The official story of Sverdrup's denial was the risk (...) of blackmail over relatives in occupied Norway. Declassified documents tell a different story. Although Sverdrup's integrity was defended on the highest levels of U.S. science, doubt was cast upon him by members of his own institution, who accused him of being a Nazi sympathiser. Personal distrust, rooted in scientific and intellectual disagreement, spilled over into questions about Sverdrup's loyalty and judgement. These doubts were considered sufficient grounds for withholding clearance, until Roger Revelle, a former student of Sverdrup now working within the Navy, was able to obtain a limited clearance for Sverdrup to develop techniques to forecast surf conditions during amphibious assaults. After the war, this work was credited with saving many lives, but at the time it placed Sverdrup out of the mainstream of Navy-sponsored oceanographic research. In being denied access to major areas of scientific work, Sverdrup's position as a leader of American oceanography was undermined.The loyalty case of Harald Sverdrup illustrates the emergence of an institutional apparatus through which the U.S. military began to control and shape the organisation of American science in the twentieth century. Military sponsorship of scientific research, begun during the open conflicts of World War II and continuing into the simmering tensions of the Cold War, involved explicit control by the U.S. military of who had access to critical information. This in turn meant who could do science in conjunction with the military. As the U.S. Navy became the principal sponsor of oceanography in the post-war years, clearance to do military work became to a great extent clearance to do oceanography. Choices about who could be trusted were also choices about who would do science, and what kind of science they would do. (shrink)

Forest Ecosystem Services are widely recognised by the society nowadays. However, no study in the literature has analysed a ranking of FES after the pandemic. This paper investigated civil society’s perception and knowledge toward these services; in addition, the presence of attitudinal or behavioural patterns regarding individual’s preference, was assessed. A choice experiment was conducted using the Best-Worst Scaling method on a sample of 479 individuals intercepted in the Argentera Valley, in the Western Italian Alps. Results, showed a strong (...) interest in biodiversity, aesthetic landscape quality and psychophysical health and a lower interest in provisioning services. Based on the individual preferences, civil society was clustered into five groups for FES, named “Hedonistic,” “Individualist with cultural and health interests,” “Sensitive to regulatory and utilitarian functions,” “Climate change sensitive” and “Livelihood and hedonistic wellbeing.” In general, there was a growing appreciation by civil society for the intangible services offered by the forest, driven by modern lifestyles and an interest in learning more about the provided services. Based on these elements, we believe that similar research should be extended to other mountain contexts to validate the results or to find new insights, and that it is now necessary to study how to involve civil society in decision-making processes of forest planning and management at a local level. (shrink)

This study investigated how the social identities assumed by individuals as part of their professional roles influence the nature and use of a range of rationalizations for their corruption or the corrupt acts of others. Thirty senior Indonesian public servants were interviewed about the causes and factors that perpetuated corruption during the Suharto era, and how they rationalized corrupt behavior within the role of being a civil servant. Findings revealed that corruption was routine and embedded in the daily activities (...) and administrative structures of Indonesian public servants. Rationalizing ideologies that supported corruption included a denial of responsibility, social weighting and an appeal to higher loyalties. Central to these rationalizations were explanations around the low levels of civil service salaries, poor accountability, and corrupt leadership at senior levels of the government. However, the expression of these rationalizations varied across three social or role identities of the Indonesian civil servant: the professional civil servant, the collegial civil servant, and the corrupt civil servant. The implications of these findings for interventions in organizations in developing countries are discussed. (shrink)

In 1997, Rusmir Mahmutćehajić, one of Bosnia’s leading public intellectuals, was scheduled to lecture on Bosnia at Stanford University but was unexpectedly denied an entry visa by American authorities. This book, first published in Bosnia in 1998, is an expanded version of that lecture. It is an indictment of the partition of Bosnia, formalized in 1995 by the Dayton Accord. It is also a plea for Bosnia’s communities to reject ethnic segregation and restore mutual trust. For the first time, English-speaking (...) readers can hear this important voice of dissent from within Bosnia-Herzegovina. Mahmutćehajić argues for the history and reality of a Bosnia-Herzegovina based upon a model of “unity in diversity.” He shows that ethnic and religious cultures have coexisted in Bosnia for centuries. Partitioning of Bosnia, therefore, should have been unthinkable except that a multi-ethnic, multi-faith Bosnia stood squarely in the way of Croatian and Serbian leaders determined to enact their own nationalist programs. The decisive moment came when the international community accepted the Serb-Croat argument that ancient ethnic hatreds were endemic to Bosnia. At that point, ethnic segregation became not only acceptable but desirable. With the complicity of Western powers, Serbs and Croats proceeded to carve out ethnically cleansed states. Mahmutćehajić examines the reasons why Western liberal democracies have regarded with sympathy the struggles of Serbia and Croatia for national recognition, while viewing Bosnia’s multicultural society with suspicion. As one of Bosnia's former political leaders in the early peace talks, he describes with authority how the parties were often physically aligned during formal talks, with Bosniak negotiators on one side of the table and everybody else—Serb, Croat, and international representatives—on the other. In the end, justice was subverted and the final solution justified on the basis of an intractable “conflict of civilizations." Mahmutćehajić confronts the religious dimension of the Bosnian dilemma with refreshing honesty. As a Bosniak committed to interreligious dialogue, he calls for more than simple toleration among Serbs, Croats, and Bosnians. He remembers that Judaism, Christianity, and Islam all share the same deity, and it is this common transcendent perspective that should open the door to the acceptance and celebration of religious diversity. Only in this way will Bosnia reclaim its unique civilization. _The Denial of Bosnia_ has dire implications for the future of a Europe searching for a viable post–Cold War order. Will Europe accept ethnic segregation as a solution to the contradictions of ethnic diversity or find a way to protect and build upon this diversity? Bosnia, though currently divided and shaken to its foundations, could become a model for European progress. The greatest danger is for Bosnia to be declared just another ethnoreligious entity, in this case a “Muslim State” ghettoized inside of Europe. If protected and allowed to develop, however, Bosnia too could find a place in the new European order. (shrink)

Reference to human rights, not as abstract consensus but as shared object, issue for action and principle of innovation, is ignored in Huntington’s theory of the clash of civilizations. The psychosocial processes of relegation to alterity are a form of exclusion which, beyond discrimination and contempt, deny the possibility of a common world. They prevent actors from experiencing their diversity of positioning as a rational diversity and prevent societies from democratically inhabiting the divisions that run through them. The author argues, (...) relying on authors like Etzioni, Moscovici and Crespi, that recognition of minorities’ influence will be the best bulwark against the divisions that undermine contemporary societies’ democratic purpose when they are eliminated or radicalized. She analyses the relations between connected phenomena such as persuasion and the common world, the struggle for recognition in the legal sphere, and the denial of esteem. (shrink)

What are our responsibilities in the face of injustice? How far should we go to fight it? Many would argue that as long as a state is nearly just, citizens have a moral duty to obey the law. Proponents of civil disobedience generally hold that, given this moral duty, a person needs a solid justification to break the law. But activists from Henry David Thoreau and Mohandas Gandhi to the Movement for Black Lives have long recognized that there are (...) times when, rather than having a duty to obey the law, we have a duty to disobey it. -/- Taking seriously the history of this activism, A Duty to Resist wrestles with the problem of political obligation in real world societies that harbor injustice. Candice Delmas argues that the duty of justice, the principle of fairness, the Samaritan duty, and political association impose responsibility to resist under conditions of injustice. We must expand political obligation to include a duty to resist unjust laws and social conditions even in legitimate states. -/- For Delmas, this duty to resist demands principled disobedience, and such disobedience need not always be civil. At times, covert, violent, evasive, or offensive acts of lawbreaking can be justified, even required. Delmas defends the viability and necessity of illegal assistance to undocumented migrants, leaks of classified information, distributed denial-of-service (DDoS) attacks, sabotage, armed self-defense, guerrilla art, and other modes of resistance. There are limits: principle alone does not justify law breaking. But uncivil disobedience can sometimes be not only permissible but required in the effort to resist injustice. (shrink)

Bringing together important writings not easily available elsewhere, this volume provides a convenient and stimulating overview of recent work in the philosophy of science. The contributors include Paul Feyerabend, Ian Hacking, T.S. Kuhn, Imre Lakatos, Laurens Laudan, Karl Popper, Hilary Putnam, and Dudley Shapere. In addition, Hacking provides an introductory essay and a selective bibliography.

Especially troublesome in this dispute is the status of the natural sciences, and this is where Hacking finds some of his most telling cases, from the conflict ...

In this important new study Ian Hacking continues the enquiry into the origins and development of certain characteristic modes of contemporary thought undertaken in such previous works as his best selling Emergence of Probability. Professor Hacking shows how by the late nineteenth century it became possible to think of statistical patterns as explanatory in themselves, and to regard the world as not necessarily deterministic in character. Combining detailed scientific historical research with characteristic philosophic breath and verve, The Taming of Chance (...) brings out the relations among philosophy, the physical sciences, mathematics and the development of social institutions, and provides a unique and authoritative analysis of the "probabilization" of the Western world. (shrink)

The national ethical guidelines relevant to assisted reproductive technology have recently been reviewed by the National Health and Medical Research Council. The review process paid particular attention to the issue of non-medical sex selection, although ultimately, the updated ethical guidelines maintain the pre-consultation position of a prohibition on non-medical sex selection. Whilst this recent review process provided a public forum for debate and discussion of this ethically contentious issue, the Victorian case of JS and LS v Patient Review Panel [2011] (...) VCAT 856 provides a rare instance where the prohibition on non-medical sex selection has been explored by a court or tribunal in Australia. This paper analyses the reasoning in that decision, focusing specifically on how the Victorian Civil and Administrative Tribunal applied the statutory framework relevant to ART and its comparison to other uses of embryo selection technologies. The Tribunal relied heavily upon the welfare-of-the-child principle under the Assisted Reproductive Treatment Act 2008. The Tribunal also compared non-medical sex selection with saviour sibling selection. Our analysis leads us to conclude that the Tribunal’s reasoning fails to adequately justify the denial of the applicants’ request to utilize ART services to select the sex of their prospective child. (shrink)

One of Ian Hacking's earliest publications, this book showcases his early ideas on the central concepts and questions surrounding statistical reasoning. He explores the basic principles of statistical reasoning and tests them, both at a philosophical level and in terms of their practical consequences for statisticians. Presented in a fresh twenty-first-century series livery, and including a specially commissioned preface written by Jan-Willem Romeijn, illuminating its enduring importance and relevance to philosophical enquiry, Hacking's influential and original work has been revived for (...) a new generation of readers. (shrink)

This book asks whether sovereignty can guarantee international equality by exploring the discourses of sovereignty and their reliance on the notions of civilisation and savagery in two historical colonial encounters: the French explorations of Canada in the 16th century and the domestic troubles linked to the Wars of Religion. Presenting the concept of 'civilised sovereignty', Mathieu reveals the interplay between the domestic and external claims to sovereignty, and offers a dynamic analysis of the theory and practice of the concept. Based (...) on extensive archival research, this book provides an in-depth intellectual picture of the theory and practice of sovereignty in early modern France by focusing on the discourses deployed by French political theorists. Mathieu applies performativity in order to denaturalise these discourses of statehood and reveals how the domestic and international constructions of sovereignty feed into one another and equally rely on appeals to civilisation and savagery. Overall, the book questions the 'myth of sovereignty as equality' and reflects on the persistence of this association despite the overwhelming empirical evidence that it institutes international hierarchies and inequalities. (shrink)

Historical records show that there was no real concept of probability in Europe before the mid-seventeenth century, although the use of dice and other randomizing objects was commonplace. Ian Hacking presents a philosophical critique of early ideas about probability, induction, and statistical inference and the growth of this new family of ideas in the fifteenth, sixteenth, and seventeenth centuries. Hacking invokes a wide intellectual framework involving the growth of science, economics, and the theology of the period. He argues that the (...) transformations that made it possible for probability concepts to emerge have constrained all subsequent development of probability theory and determine the space within which philosophical debate on the subject is still conducted. First published in 1975, this edition includes an introduction that contextualizes his book in light of developing philosophical trends. Ian Hacking is the winner of the Holberg International Memorial Prize 2009. (shrink)

This 1983 book is a lively and clearly written introduction to the philosophy of natural science, organized around the central theme of scientific realism. It has two parts. 'Representing' deals with the different philosophical accounts of scientific objectivity and the reality of scientific entities. The views of Kuhn, Feyerabend, Lakatos, Putnam, van Fraassen, and others, are all considered. 'Intervening' presents the first sustained treatment of experimental science for many years and uses it to give a new direction to debates about (...) realism. Hacking illustrates how experimentation often has a life independent of theory. He argues that although the philosophical problems of scientific realism can not be resolved when put in terms of theory alone, a sound philosophy of experiment provides compelling grounds for a realistic attitude. A great many scientific examples are described in both parts of the book, which also includes lucid expositions of recent high energy physics and a remarkable chapter on the microscope in cell biology. (shrink)

Civilizational analysis is increasingly being used to capture the plurality of routes to and through the modern world order. However, the concept of civilization betrays a colonial legacy, namely, a denial that colonized peoples possessed the creative ability to cultivate their own subjecthoods. This denial was especially acute when it came to enslaved Africans in the New World whose bodies were imagined to be deracinated and deculturated. This article proposes that civilizational analysis has yet to fully address this legacy and, (...) to clarify the stakes at play, compares and contrasts the historical sociology of CLR James with the mytho-poetics of Derek Walcott. Both authors, in different ways, have attempted to endow that quintessentially un-civilizable body – the New World slave – with subjecthood. From this discussion, the article makes the case for developing a ‘poetics of slavery’ that could help to address the colonial strictures still residual in the concept of civilization. (shrink)

In her book, Geraldine Brooks fails to distinguish between what Islam says and what Muslims do.

This is a volume of specially commissioned essays of analytical philosophy, on topics of current interest in ethics and the philosophy of logic and language. Among the topics discussed are the making of wicked promises, G. E. Moore's early ethical views, as well as indexicals, tense, indeterminism, conventionalism in mathematics, and identity and necessity. The essays are all by former students of Casimir Lewy, until recently Reader in Philosophy at the University of Cambridge and an exponent of a particularly thoroughgoing (...) form of philosophical analysis. Together, they represent some of the best work in these areas at present, and express what may be described as a characteristic 'Cambridge' voice. (shrink)

This paper puts together an ancientand a recent approach to classificatory language, thought, and ontology.It includes on the one hand an interpretation of Aristotle's ten categories,with remarks on his first category, called (or translated as) substancein the Categories or What a thing is in the Topics. On the other hand is the ideaof domain-specific cognitive abilities urged in contemporary developmentalpsychology. Each family of ideas can be used to understand the other. Neitherthe metaphysical nor the psychological approach is intrinsically morefundamental; they (...) complement each other. The paper incidentally clarifies distinct uses of the word “category” in different disciplines, and also attempts to make explicit several notions of “domain”. It also examines Aristotle's most exotic and least discussed categories, being-in-a-position (e.g., sitting) and having-(on) (e.g., armour). Finally the paper suggests a tentative connectionbetween Fred Sommers' theory of types and Aristotle's first category. (shrink)

This truly philosophical book takes us back to fundamentals - the sheer experience of proof, and the enigmatic relation of mathematics to nature. It asks unexpected questions, such as 'what makes mathematics mathematics?', 'where did proof come from and how did it evolve?', and 'how did the distinction between pure and applied mathematics come into being?' In a wide-ranging discussion that is both immersed in the past and unusually attuned to the competing philosophical ideas of contemporary mathematicians, it shows that (...) proof and other forms of mathematical exploration continue to be living, evolving practices - responsive to new technologies, yet embedded in permanent facts about human beings. It distinguishes several distinct types of application of mathematics, and shows how each leads to a different philosophical conundrum. Here is a remarkable body of new philosophical thinking about proofs, applications, and other mathematical activities. (shrink)

The focus of this volume, which collects both recent and now-classic essays, is the historical emergence of concepts and objects, through new uses of words and ...

Here the distinguished philosopher Ian Hacking uses the MPD epidemic and its links with the contemporary concept of child abuse to scrutinize today's moral...

A good book may have the power to change the way we see the world, but a great book actually becomes part of our daily consciousness, pervading our thinking to the point that we take it for granted, and we forget how provocative and challenging its ideas once were—and still are. _The Structure of Scientific Revolutions _is that kind of book. When it was first published in 1962, it was a landmark event in the history and philosophy of science. Fifty (...) years later, it still has many lessons to teach. With _The Structure of Scientific Revolutions, _Kuhn challenged long-standing linear notions of scientific progress, arguing that transformative ideas don’t arise from the day-to-day, gradual process of experimentation and data accumulation but that the revolutions in science, those breakthrough moments that disrupt accepted thinking and offer unanticipated ideas, occur outside of “normal science,” as he called it. Though Kuhn was writing when physics ruled the sciences, his ideas on how scientific revolutions bring order to the anomalies that amass over time in research experiments are still instructive in our biotech age. This new edition of Kuhn’s essential work in the history of science includes an insightful introduction by Ian Hacking, which clarifies terms popularized by Kuhn, including paradigm and incommensurability, and applies Kuhn’s ideas to the science of today. Usefully keyed to the separate sections of the book, Hacking’s introduction provides important background information as well as a contemporary context. Newly designed, with an expanded index, this edition will be eagerly welcomed by the next generation of readers seeking to understand the history of our perspectives on science. (shrink)

Ian Hacking here presents a philosophical critique of early ideas about probability, induction and statistical inference and the growth of this new family of ...

Historical records show that there was no real concept of probability in Europe before the mid-seventeenth century, although the use of dice and other randomizing objects was commonplace. Ian Hacking presents a philosophical critique of early ideas about probability, induction, and statistical inference and the growth of this new family of ideas in the fifteenth, sixteenth, and seventeenth centuries. Hacking invokes a wide intellectual framework involving the growth of science, economics, and the theology of the period. He argues that the (...) transformations that made it possible for probability concepts to emerge have constrained all subsequent development of probability theory and determine the space within which philosophical debate on the subject is still conducted. First published in 1975, this edition includes an introduction that contextualizes his book in light of developing philosophical trends. Ian Hacking is the winner of the Holberg International Memorial Prize 2009. (shrink)

This is an introductory 2001 textbook on probability and induction written by one of the world's foremost philosophers of science. The book has been designed to offer maximal accessibility to the widest range of students and assumes no formal training in elementary symbolic logic. It offers a comprehensive course covering all basic definitions of induction and probability, and considers such topics as decision theory, Bayesianism, frequency ideas, and the philosophical problem of induction. The key features of this book are a (...) lively and vigorous prose style; lucid and systematic organization and presentation of ideas; many practical applications; a rich supply of exercises drawing on examples from such fields as psychology, ecology, economics, bioethics, engineering, and political science; numerous brief historical accounts of how fundamental ideas of probability and induction developed; and a full bibliography of further reading. (shrink)

The conclusion urged in Mr Salmon's recent article is so remarkable that it may be worth recording some difficulties. He claims to rescue Reichenbach's notorious vindication of induction. This is essentially concerned with estimating long-run frequencies. By an estimator let us mean any rule for making estimates appropriate to various bodies of information. Reichenbach thought an estimator is sensible only if it is convergent, that is, roughly speaking, only if its estimates tend to approach the truth as more and more (...) data is collected. Mr Salmon observes that an estimator should, in addition, be independent of the language in which the information is expressed. He contends that this criterion of linguistic invariance, when added to the rest of Reichenbach's train of thought, suffices to justify the “straight rule” for estimation: if m of the n observed A's are B, estimate the long-run frequency of B among A's as m/n. (shrink)

The rosy dawn of my title refers to that optimistic time when the logical concept of a natural kind originated in Victorian England. The scholastic twilight refers to the present state of affairs. I devote more space to dawn than twilight, because one basic problem was there from the start, and by now those origins have been forgotten. Philosophers have learned many things about classification from the tradition of natural kinds. But now it is in disarray and is unlikely to (...) be put back together again. My argument is less founded on objections to the numerous theories now in circulation, than on the sheer proliferation of incompatible views. There no longer exists what Bertrand Russell called ‘the doctrine of natural kinds’—one doctrine. Instead we have a slew of distinct analyses directed at unrelated projects. (shrink)