Can merely thinking about an imaginary situation provide evidence for how the world actually is--or how it ought to be? In this lively book, Roy A. Sorensen addresses this question with an analysis of a wide variety of thought experiments ranging from aesthetics to zoology. Presenting the first general theory of thought experiment, he sets it within an evolutionary framework and integrates recent advances in experimental psychology and the history of science, with special emphasis on Ernst Mach and Thomas (...) Kuhn. Sorensen explores what thought experiments are, how they work, and what their virtues and vices are. In his view, philosophy differs from science in degree, but not in kind. For this reason, he claims, it is possible to understand philosophical thought experiments by concentrating on their resemblance to scientific relatives. Sorensen assesses the hazards of thought experiments and grants that there are interesting ways in which the method leads us astray, but attacks most scepticism about thought experiments as arbitrary. He maintains that they should be used--as they generally are--as part of a diversified portfolio of techniques, creating a network of cross-checks that make for impressive reliability. (shrink)

At the beginning of the 20th century,German-language kindergartens were completelyovershadowed by Friedrich Froebel's tradition. Thesearch for new forms of teaching started mainly bytaking over the body of thinking developed byteaching reformers. John Dewey's work was onlyaccorded marginal examination. The person who gotto grips most intensively with John Dewey and theAmerican tradition of kindergarten teaching duringthe first half of the 20th century is Emmy Walser,one of the leading personalities in the kindergartenmovement in Switzerland. As a result, the ``freeworking method'' developed in (...) Switzerland as the newmethod. Dewey's educational philosophy was reducedto the methodology of the free working method whichhad the effect of giving new life to Froebel'sideas. (shrink)

At the beginning of the 20th century, German-language kindergartens were completely overshadowed by Friedrich Froebel’s tradition. The search for new forms of teaching started mainly by taking over the body of thinking developed by teaching reformers. John Dewey’s work was only accorded marginal examination. The person who got to grips most intensively with John Dewey and the American tradition of kindergarten teaching during the first half of the 20th century is Emmy Walser, one of the leading personalities in the kindergarten (...) movement in Switzerland. As a result, the “free working method” developed in Switzerland as the new method. Dewey’s educational philosophy was reduced to the methodology of the free working method which had the effect of giving new life to Froebel’s ideas. (shrink)

PurposeThe deployment and strategic use of e‐business, from basic e‐mail utilization to total enterprise integration, involves the commitment of financial and technical resources. The resources have to be financed. The purpose of this paper is to ascertain the views of trade promotion organizations, donors, export associations and banks on e‐business financing in Ghana's non‐traditional export sector, with the view to making policy contributions to the e‐business financing phenomenon in a developing economy context.Design/methodology/approachThe research design is qualitative since this is an (...) exploratory study and deep preliminary insights were sought about a hitherto under‐researched information systems topic from a developing country perspective. Officials from the trade promotion; export association, donor and financial communities were interviewed to generate insights to help understand the phenomenon under investigation.FindingsSome banks find it difficult financing e‐business in NTE firms because it is considered a new area with relatively higher risks and uncertainties. Banks would rather grant small loans to a few select small and medium enterprise exporters in an attempt to limit their default risk. The trade promotion organization is helping with up‐skilling for the improvement in e‐competencies in Ghana's NTE sector. The export product association in collaboration with the donor interviewed is in the throes of designing e‐business interventions in Ghana's NTE sector after recently completing an e‐readiness survey in the same sector.Originality/valueThis paper presents a modest contribution to the export firm‐electronic business literature from a resource‐centered perspective, in a DE context. Studies on e‐business financing in DEs are virtually non‐existent and the policy prescriptions could apply with minor modifications to other related contexts in respect of e‐business financing. (shrink)

Roy Sorensen has discussed a scenario he calls 'the Disappearing Act', introduced a puzzle based on this scenario, and offered a solution to this puzzle. We argue against Sorensen's solution and offer our own.

Mostraremos que o tratamento dado por Sorensen à vaguidade e ao sorites não deve ser classificado como epistemicista. Além disso, tentaremos mostrar que as aproximações que Sorensen tenta fazer entre o paradoxo sorítico e os paradoxos do não-não e do prefácio não são bem-sucedidas.

is an important principle, worthy of serious scrutiny. Its truth or falsity bears on the question of whether moral rightness, obligatoriness, etc., are a matter of factors “internal” to an agent, or whether “external” factors are relevant to determining the moral normative status of acts. Moreover, Access enjoys considerable intuitive support. If I destroy Greensboro in professor Sorensen’s example by pushing the wrong button, I seem to have a good excuse to give to anyone who would accuse me of (...) wrongdoing: “I had no way of knowing that this action would be wrong!” But if I have a good excuse, then pushing the button doesn’t seem wrong; and if that action isn’t wrong, then I had no obligation to refrain from pushing that button. A principle distinct from, but analogous to, Access also deserves our attention. (shrink)

In his fascinating and provocative paper, "Sharp Boundaries for Blobs," Roy Sorensen gives several arguments against the possibility of "vague objects," or objects with indeterminate boundaries.1 In what follows, I will examine the main argument given by Sorensen in his paper. This argument has a great deal of initial plausibility. Moreover, I happen to sympathize with its conclusion. Nevertheless, it seems to me that Sorensen's argument fails to establish that conclusion. The purpose of this paper is to (...) show why. I will argue that, upon careful examination, it can be seen that Sorensen's argument involves a fatal equivocation. Sorensen's argument is based on a kind of thought experiment. We are asked to consider, as a paradigm example of a vague object, a grey sphere (also known as "the blob") that fades into a white background. And we are asked to imagine a spherical cavity growing from the center of the blob, so that the growth of the cavity eventually destroys the blob. Sorensen's argument, which is explicitly spelled out in Section I of his paper, goes like this: 1. The blob must have a boundary. 2. If a spherical cavity grows from the center of the blob, the blob's outer boundary is completely unaffected as long as some of the blob remains. 3. As soon as nothing remains of the blob, the blob's boundary goes out of existence all at once. (shrink)

In his book “Seeing Dark Things” (2008), Roy Sorensen provides many wonderfully ingenious arguments for many surprising, counter-intuitive claims. One such claim in particular is that when we a silhouetted object – i.e. an opaque object lit entirely from behind – we literally see its back-side – i.e. we see the full expanse of the surface facing away from us that is blocking the incoming light. Sorensen himself admits that this seems a tough pill to swallow, later characterising (...) it as “the most controversial thesis of the book” (2011, p199). -/- I will argue against Sorensen’s controversial thesis and in favour of what seems to me to be a much more natural and commonsensical alternative: when we see a silhouetted object, what we see is its edge and only its edge – so we do not see its entire back-side. (shrink)

Kelly Sorensen defends a model of the relationship between effort and moral worth in which the effort exerted in performing a morally desirable action contributes positively to the action’s moral worth, but the effort required to perform the action detracts from its moral worth. I argue that Sorensen’s model, though on the right track, is mistaken in three ways. First, it fails to capture the relevance of counterfactual effort to moral worth. Second, it wrongly implies that exerting unnecessary (...) effort confers moral worth on an action. Third, it fails to adequately distinguish between cases in which effort is required because of defects of moral character and those in which effort is required because of barriers external to moral character, such as social pressures or non-moral cognitive deficits. I suggest three amendments to Sorensen’s model that correct these three defects. (shrink)

There is much in the paper that I agree with, much that I do not understand and am probably not competent to understand, and some which I am puzzled by. I will concentrate on the last. Both regarding puzzles, and regarding points of agreement and incomprehension, I will be selective and touch on only a few.

In his famous book "Seeing Dark Things: The Philosophy of Shadows" (2008), Roy Sorensen put forward a ‘blocking theory of shadows’, a causal view on these entities according to which a shadow is an absence of light caused by blockage. This approach allows him to solve a quite famous riddle on shadows, ‘the Yale puzzle’, that was devised by Robert Fogelin in the late 1960s and that Sorensen presents in the form mentioned by Bas van Fraassen (1989). István (...) Aranyosi has recently criticized Sorensen’s solution to the Yale puzzle, on the grounds that it does not resist another version of the riddle, that Aranyosi calls ‘the Bilkent puzzle’. A new perspective on shadows, the ‘Material Exstitution View’, that allegedly permits to solve both puzzles, could be adopted as an alternative. In this paper I will show that Sorensen’s blockage theory can actually handle both the Yale and the Bilkent puzzle, plus another one that I put forward (‘the donut puzzle’), which instead is fatal to Aranyosi’s position. As Sorensen puts it, nothing aside from the original blockage of light is needed. (shrink)

This book adds to the growing literature on thought experiments. There are numerous examples drawn from the sciences and philosophy. The principle claim is that thought experiments are a limiting case of real experiments. It is a moderate empiricist view, in contrast to, e.g., the Platonism of Brown or the strict empiricism of Norton. Highly recommended.

Roy Sorensen has argued that vagueness in the law cannot be justified by appeal to the value of power-delegation, and thereby threatens to take away one of the main reasons for thinking that vagueness can be valuable to law. Delegation of power to officials is justified, he thinks, only if these officials are in a better position to discover whether a particular x is F, a condition not satisfied in cases of vagueness. I argue that Sorensen’s argument is (...) unsound: delegation of power can be valuable even if the delegates are not in a better position to answer that question. (shrink)

Sorensen offers the following definition of a ‘knowledge-lie’: ‘An assertion that p is a knowledge-lie exactly if intended to prevent the addressee from knowing that p is untrue but is not intended to deceive the addressee into believing p.’ According to Sorensen, knowledge-lies are not meant to deceive their addressee, and this fact is supposed to make them less bad than ordinary lies. I will argue that standard cases of knowledge-lies, including almost all the cases Sorensen considers, (...) do in fact involve deception, contrary to what Sorensen claims. And while there are cases of non-deceptive knowledge-lies, such cases are deviant, either because it is only incidental that the knowledge-preventing assertion is a lie, or because it is only incidental that the lie doesn't deceive. Here's an example of a knowledge-lie: Dr Head is considering firing Dr Appendix because of his weak research. But he doesn't want to fire Appendix unless he knows that Appendix's research isn't good, and so he consults Dr Heart. Head knows that if Appendix's research is good, then Heart will tell the truth and say so, whereas if Appendix's work isn't good, then Heart may or may not …. (shrink)

A brief "advertisement" in response to Roy Sorensen's "advertisement" "A Cure for Incontinence".

The European Legacy, Volume 17, Issue 3, Page 417-418, June 2012.

Roy Sorensen advances an evolutionary explanation of our capacity for thought experiments which doubles as a naturalized epistemological justification. I argue Sorensens explanation fails to satisfy key elements of environmental-selectionist explanations and so fails to carry epistemic force. I then argue that even if Sorensen succeeds in showing the adaptive utility of our capacity, he still fails to establish its reliability and hence epistemic utility. I conclude Sorensens account comes to little more than a just-so story.

Lucretius argues that death does not harm the person who dies. Harm could occur only if a person’s future non-existence were harmful. But one’s future non-existence is no more harmful than one’s non-existence before birth. Since a person is not harmed by lacking existence before birth, one is not harmed by lacking existence after dying.

Lucretius argues that death does not harm the person who dies. Harm could occur only if a person’s future non-existence were harmful. But one’s future non-existence is no more harmful than one’s non-existence before birth. Since a person is not harmed by lacking existence before birth, one is not harmed by lacking existence after dying.

Lucretius argues that death does not harm the person who dies. Harm could occur only if a person’s future non-existence were harmful. But one’s future non-existence is no more harmful than one’s non-existence prior to being born. Since a person is not harmed by lacking existence prior to being born, it follows that one is not harmed by lacking existence after dying. There is thus no need to fear death’s sting.

In several texts, Kant announces that there are three distinct mental faculties: cognition, desire, and feeling. This trinitarian commitment should give us pause, for many people operate instead with a dualist model of reason and emotion, where desire and feeling are usually squished together under emotion. Here, as elsewhere, the Kantian model is more complicated. On Kant's view, each of the three faculties has its own specific work to do and generates its own kinds of representations. We do not simply (...) have emotions that... (shrink)