There are grounds for taking Plato's agenda of searching for definitions to be ironic, and he points toward good arguments for being wary of trust in definitions.

The use of findings from conversation analysis in the design of human-computer interfaces and especially in the design of computer-human speech dialogues is a matter of considerable controversy. For example, in “Going up a Blind Alley” (Button, 1990) and “On Simulacrums of Conversation” (Button and Sharrock, 1995), Button argues that conversation analysis is of only limited use in the computational modelling of interaction. He suggests that computers will never be able to “converse” with humans because of the fundamentally different ways (...) in which humans and computers use rules in the production of language.We show in this paper that these arguments are neither necessary nor sufficient to rule out the possibility of computers which can be said to converse. They depend on a view about the nature of rules which is based on a fundamental misunderstanding of the scope of computation. The way in which mathematical systems such as Context Free Grammars use rules is very different from the use of the rules in principle-based approaches to language or the “micro-rules” of neural networks. If there is a problem with conversing computers, it lies more with the true nature of the interaction that is taking place and with considerations about the nature of cognition than with the construction and use of rules. (shrink)

Aspects of the controversy concerning the theoretical status of some recent thinking on human cognition are discussed; in particular, the concept of ?unconscious knowledge?, the ?functionalist? analysis of the mental; the problem of the domains of explananda, given the recalcitrant difficulty in providing warrantable and generalizable criteria for individuating components of an organism's ?behavior'; the problem of the polymorphous character of various mental predicates and their misconceived treatment as ?state? or ?process? descriptors; the possible ?over?intellectualizing? of central?nervous?system processes, and the (...) availability of an alternative program for the ?middle?ground? between common?sense reasoning and neuroscientific research in the study of ?mind?. Throughout the discussion, a broadly neo?Wittgensteinian approach is advanced. (shrink)

This essay deals with some philosophical problems concerning the understanding of ethical conceptions in an alien culture. Its aim is to show that in investigating such conceptions we cannot proceed on purely empirical grounds; our own ethical concepts will, in a conceptual sense, determine what it is conceivable that we find.

The aim of this paper is to give a self-reflective account of the building of Galileo's pendulum in order to discover what were the practical contingencies of building and using the pendulum for demonstrating the law of isochronism. In doing this, the unique Lebenswelt structures of Galilean physics are explicated through the ethnomethodological concepts developed by Harold Garfinkel. The presupposition is that the practical logic of Galilean physics is embedded in the instruments themselves. In building the pendulum and recovering its (...) original use, Galilean physics becomes for ethnomethodologists a first-hand practical discovery. This is not a reconstruction of the mind of the historical Galileo but, rather, an explication of Galileo's practical perspective on the instrument as an intersubjective and interchangeable standpoint available for ethnomethodological analysis. This enables us to study historical facts from the standpoint of the practical logic of the original practice with a pedagogical eye for the instructive reproducibility of science. (shrink)

This paper offers an ethnomethodological clarification of Husserl's concepts of Galilean physics and regressive inquiry. It employs the reader's textual-practical operationalization of these concepts. With the use of a simple optical prism as a perspicuous case of a scientific instrument, the reader will be asked and instructed to make a self-reflexive inquiry into the practical contingencies of the prismatic field of reflection. The reader will discover that the geometric structures of the reflective field of the prism is an achievement and (...) formalization of the reader's own operatlonalizations. I named these discoverable discovering operationspraxioms or practical axioms — the pre-scientific contingencies of the geometric structures of prismatic reflection. (shrink)