Bertrand Russell’s _Principles of Mathematics_ (1903) gives rise to several interpretational challenges, especially concerning the theory of denoting concepts. Only relatively recently, for instance, has it been properly realised that Russell accepted denoting concepts that do not denote anything. Such empty denoting concepts are sometimes thought to enable Russell, whether he was aware of it or not, to avoid commitment to some of the problematic non-existent entities he seems to accept, such as the Homeric gods and chimeras. In this paper, (...) I argue first that the theory of denoting concepts in _Principles of __Mathematics_ has been generally misunderstood. According to the interpretation I defend, if a denoting concept shifts what a proposition is about, then the aggregate of the denoted terms will also be a constituent of the proposition. I then show that Russell therefore could not have avoided commitment to the Homeric gods and chimeras by appealing to empty denoting concepts. Finally, I develop what I think is the best understanding of the ontology of _Principles of __Mathematics_ by interpreting some difficult passages. (shrink)

Abating the threat climate change poses to the lives of future people clearly challenges our development models. The 2011 Human Devel- opment Report rightly focuses on the integral links between sustainability and equity. However, the human development and capabilities approach emphasizes the expansion of people’s capabilities simpliciter, which is ques- tionable in view of environmental sustainability. We argue that capabilities should be defined as triadic relations between an agent, constraints and poss- ible functionings. This triadic syntax particularly applies to climate (...) change: since people’s lives and capabilities are dependent on the environment, sus- tainable human development should also include constraining human activi- ties in order to prevent losses in future people’s well-being due to the adverse effects of exacerbated climate change. On this basis, we will advocate that the goals of sustainable human development should be informed by a fra- mework that consists of enhancing capabilities up to a threshold level, as well as constraining the functionings beyond this threshold in terms of their green- house gas emissions. (shrink)

I critically discuss two kinds of argument in favour of ontological pluralism and argue that they fail to show that ways of being are explanatorily fruitful.

Social epistemologists should be well-equipped to explain and evaluate the growing vulnerabilities associated with filter bubbles, echo chambers, and group polarization in social media. However, almost all social epistemology has been built for social contexts that involve merely a speaker-hearer dyad. Filter bubbles, echo chambers, and group polarization all presuppose much larger and more complex network structures. In this paper, we lay the groundwork for a properly social epistemology that gives the role and structure of networks their due. In particular, (...) we formally define epistemic constructs that quantify the structural epistemic position of each node within an interconnected network. We argue for the epistemic value of a structure that we call the (m,k)-observer. We then present empirical evidence that (m,k)-observers are rare in social media discussions of controversial topics, which suggests that people suffer from serious problems of epistemic vulnerability. We conclude by arguing that social epistemologists and computer scientists should work together to develop minimal interventions that improve the structure of epistemic networks. (shrink)

In this paper, we explain and showcase the promising methodology of testimonial network analysis and visualization for experimental epistemology, arguing that it can be used to gain insights and answer philosophical questions in social epistemology. Our use case is the epistemic community that discusses vaccine safety primarily in English on Twitter. In two studies, we show, using both statistical analysis and exploratory data visualization, that there is almost no neutral or ambivalent discussion of vaccine safety on Twitter. Roughly half the (...) accounts engaging with this topic are pro-vaccine, while the other half are con-vaccine. We also show that these two camps rarely engage with one another, and that the con-vaccine camp has greater epistemic reach and receptivity than the pro-vaccine camp. In light of these findings, we question whether testimonial networks as they are currently constituted on popular fora such as Twitter are living up to their promise of delivering the wisdom of crowds. We conclude by pointing to directions for further research in digital social epistemology. (shrink)

This study thoroughly investigates the financial behaviors of financially independent, young, single professionals aged 24 to 35 in Balayan, Batangas, amidst a period of global inflation. Focusing on five industries—education, finance, government, healthcare, and retail—the research employs a mixed-methods approach. Quantitative analysis, involving 75 respondents through a 4-point Likert scale survey, is complemented by qualitative insights from in-depth interviews with 5 participants from each industry. The findings from numerical values revealed that demographics did not impact working professionals' saving habits and (...) buying behaviors during the global inflation surge. This suggests that despite differences in age, gender, industry, employment status, and monthly income or salary, all professionals prioritized robust, strong savings and reduced spending to ensure financial stability. The research underscores the significance for professionals in various industries to prioritize specific aspects of personal financial management during the prevailing global inflation surge. The study suggests that, irrespective of industry, working professionals should prioritize specific aspects of personal financial management during the global inflation surge. (shrink)

Investigations into inter-level relations in computer science, biology and psychology call for an *empirical* turn in the philosophy of mind. Rather than concentrate on *a priori* discussions of inter-level relations between 'completed' sciences, a case is made for the actual study of the way inter-level relations grow out of the developing sciences. Thus, philosophical inquiries will be made more relevant to the sciences, and, more importantly, philosophical accounts of inter-level relations will be testable by confronting them with what really happens (...) in science. Hence, close observation of the ever-changing reduction relations in the developing sciences, and revision of philosophical positions based on these empirical observations, may, in the long run, be more conducive to an adequate understanding of inter-level relations than a traditional *a priori* approach. (shrink)

Review of a comprehensive introduction to a philosophy of the environment. Refers to the United Nations Brundtland-report (1987) and its ground-breaking definition of "sustainable development". Account of dilemma's of wants and needs of future generations. Notes and comments on Garrett Hardin, Tragedy of the commons (1968), Jacques Ellul, The technological society (1964) and Langdon Winner, Autonomous technology (1977). Study ends with a well-founded plea for an ecological society.

Wouter Kusters argues that madness has much to offer philosophy, as does philosophy to madness. In this paper, i support both claims by drawing on a mad phenomenon which I label Radical Psychotic Doubt, or RPD. First, although skepticism is a minority position in epistemology, it has been claimed that anti-skeptical arguments remain unsatisfying. I argue that this complaint can be clarified and strengthened by showing that anti-skeptical arguments are irrelevant to RPD sufferers. Second, there's a debate about whether so-called (...) hinge commitments are beliefs or not. I argue that RPD can be used to strengthen the case that they are. Moreover, if hinges are beliefs, some madpeople are more epistemically rational than some sane philosophers. Third, drawing on my own mad experiences, I challenge evidentialism by presenting a better candidate for a truly forced cchoice about what to believe than William James' traditional religious example. I further show that in certain psychiatric contexts, evidentialism has more radical implications than Jamesian pragmatism, which comes out as more conservative. Finally, I discuss how philosophical theories like pragmatism and Pyrrhonism can provide inspiration for new and much-needed coping strategies for RPD sufferers. (shrink)

A Confederacy of Dunces (Confederacy) by John Kennedy Toole portrays an interplay between competing definitions of humanism. The one school of humanism—called by some the Modernist Paradigm—saw the Italian Renaissance as the origin of nineteenth- and twentieth-century modernist views that celebrated science, technology, and individual human freedom. The other school, led by Paul Oskar Kristeller, sought to historicize humanism by establishing that Renaissance writers and thinkers were generally conservative and preserved the philosophical ideas of the medieval era. Kristeller was the (...) President of the Renaissance Society of America and was at the height of his influence at Columbia University during the late 1950s, when Toole studied for his Master’s degree there. The main character in Confederacy, Ignatius J. Reilly, presents a parody of Kristeller’s position, which he uses to critique modern society. Ignatius also plays the part of a child of the planetary god Saturn, both by acting out the ancient astrological tradition of associating Saturn with misfortune and disorder and by being a parody of the Renaissance concept of the Genius as a Child of Saturn begun by the Renaissance philosopher whom Kristeller studied most, Marsilio Ficino. Ignatius’s worldview is an antithesis of the Modernist Paradigm. Confederacy is critical of both Modernist humanism with its attendant materialism and its antithesis—Ignatius’s dysfunctional version of Kristeller’s Renaissance philosophy. When the community expels Ignatius as a scapegoat, Toole appears to gesture toward a dialectical synthesis of the two concepts of humanism in the novel’s happy ending. (shrink)

I develop a probabilistic account of coherence, and argue that at least in certain respects it is preferable to (at least some of) the main extant probabilistic accounts of coherence: (i) Igor Douven and Wouter Meijs’s account, (ii) Branden Fitelson’s account, (iii) Erik Olsson’s account, and (iv) Tomoji Shogenji’s account. Further, I relate the account to an important, but little discussed, problem for standard varieties of coherentism, viz., the “Problem of Justified Inconsistent Beliefs.”.