What Are We to Think about Thought Experiments?

Arguments from thought experiment ask the reader to imagine some hypothetical, sometimes exotic, often fantastic, scenario for the sake of illustrating or countering some claim. Variously characterized as mental experimentation, imaginary cases, and even crazy cases, thought experiments figure into both scientific and philosophical arguments. They are often criticized for their fictive nature and for their lack of grounding. Nevertheless, they are common especially in arguments in ethics and philosophy of mind. Moreover, many thought experiments have spawned variations that attempt to both affirm and refute their original arguments. These emended thought experiments exhibit a variety of styles, details, and embellishments. A rhetorical analysis of these variations suggests a reciprocal influence between the arguers' selection of details and their philosophical commitments. I offer examples of this relationship from the variations on John Searle's Chinese Room thought experiment and Judith Thomson's unconscious violinist thought experiment.     

Are our moral responsibility practices justified? Wittgenstein,Strawson and justification in ‘Freedom and Resentment’

D. Justin Coates argues that, in ‘Freedom and Resentment’, P. F. Strawson develops a modest transcendental argument for the legitimacy of our moral responsibility practices. I disagree with Coates’ claim that Strawson’s argument provides a justification, in Wittgenstein’s and/or Strawson’s sense of that term, of our responsibility practices. I argue that my interpretation of Strawson solves some difficulties with Coates’ argument, while retaining its advantages.     

SOUTHGATE'S COMPOUND ONLY‐WAY EVOLUTIONARY THEODICY: DEEP APPRECIATION AND FURTHER DIRECTIONS

Christopher Southgate offers a remarkable evolutionary theodicy that includes six affirmations and arguments; together they form a unique and very persuasive proposal which he terms a “compound evolutionary theodicy.” Here I summarize the arguments and offer critical reflections on them for further development, with an emphasis on the ambiguity in the goodness of creation; the role of thermodynamics in evolutionary biology; the challenge of horrendous evil in nature; and the theological response to theodicy in terms of eschatology, with its own severe challenge from cosmology.     

Prover9's Simplification Explained Away

This note discusses P. Oppenheimer and E. Zalta's ‘A Computationally-Discovered Simplification of the Ontological Argument’ [this journal, 2011]. I try to explain why the simplification presented there was successful and comment on the technical aspects of the method they applied.     

Logical Argument Structures in Decision-making

Perelman and Olbrechts-Tyteca's practical reasoning theory has attracted a great deal of interest since its publication in 1969. Their most important assertion, however, that argument is the logical basis for practical decision-making, has been under-utilized, primarily because it was not sufficiently operationalized for research purposes. This essay presents an operationalization of practical reasoning for use in analyzing argument logics that emerge through group interaction. Particular elements of discourse and argument are identified as responding to principles put forward by Perelman and Olbrechts-Tyteca, and are viewed as fitting together in a kind of logical argument structure that is well suited to the study of practical arguments in decision-making. Both the content elements and the logical argument structure are illustrated using examples from two studies examining decision logics in public participation and jury decision-making. Advantages of this approach and proposed recognition of a new `filtered' type of argument structure are discussed.     

Refutation by Parallel Argument

This paper discusses the method when an argument is refuted by a parallel argument since the flaw of the parallel argument is clearly displayed. The method is explicated, examined and compared with two other general methods.

Visual Arguments in Film

Our aim is to point out some differences between verbal and visual arguments, promoting the rhetorical perspective of argumentation beyond the relevance of logic and pragmatics. In our view, if it is to be rational and successful, film as (visual) argumentation must be addressed to spectators who hold informed beliefs about the theme watched on the screen and the medium’s constraints and conventions. In our reflections to follow, we apply rhetorical analysis to film as a symbolic, human, and communicative act that may sometimes be understood as a visually laid out argument. As a mixture of visual, auditory, and verbal stimuli, film demands active and complex interpretation and (re)construction. Our suggestion is to focus on five different but interrelated elements. The reconstruction and evaluation of the visual argument will be based on those elements, and the whole process will be one of visual argumentation.

Phenomenological Argumentative Structure

The nontechnical ability to identify or match argumentative structure seems to be an important reasoning skill. Instruments that have questions designed to measure this skill include major standardized tests for graduate school admission, for example, the United States-Canadian Law School Admission Test (LSAT), the Graduate Record Examinations (GRE), and the Graduate Management Admission Test (GMAT). Writers and reviewers of such tests need an appropriate foundation for developing such questions – they need a proper representation of phenomenological argumentative structure – for legitimacy, and because these tests affect people's lives. This paper attempts to construct an adequate and appropriate representation of such structure, that is, the logical structure that an argument is perceived to have by mature reasoners, albeit ones who are untrained in logic.