The first objective of this article is to propose a reflexion about the limits of the comparison or analogy or metaphor between humans and machines. This comparison which runs through the history of European philosophy (Aristotle, 1995, 1253b23; Descartes, 2006, pp. 157–159; Onfray de la Mettrie, 1996, 3–39; Kant, 2007, §65; Lewis, 1934, p. 144; Sartre, 2003, p. 248; Wittgenstein, 1947, Ts-229, 448), is basic for functionalism, and central for the development of medical sciences. For the distinc…
Read moreThe first objective of this article is to propose a reflexion about the limits of the comparison or analogy or metaphor between humans and machines. This comparison which runs through the history of European philosophy (Aristotle, 1995, 1253b23; Descartes, 2006, pp. 157–159; Onfray de la Mettrie, 1996, 3–39; Kant, 2007, §65; Lewis, 1934, p. 144; Sartre, 2003, p. 248; Wittgenstein, 1947, Ts-229, 448), is basic for functionalism, and central for the development of medical sciences. For the distinction between parts of living bodies, in particular, between organs, involves the consideration of distinct and mutually compatible biological ends, whose coordinated functioning together renders satisfaction possible. However, although the affirmation of the comparability of these two types of cases is not problematic as such, the affirmation of the identity or indistinctness of these relations is not without posing problems, whether conceptual or practical. If humans are under some aspects like machines and inversely, as some tasks are realizable by humans or machines, another thing is to suppose affirming that humans are machines, or that machines are humans (see C. I. Lewis, 1934). The stake of this point is considerable, for its range is not only the literality of the personification involved by the humanization or biologization of machines as robots (for we are not surprised by saying that such robot sweeps, achieves actions, smiles), but also that the depersonification involved by the machinization or metaphorical dehumanization of humans (whether to express an appreciation of the realization of a task by a person or to express the horror and the inhumanity, the absence of emotions involved by the realization of an action by a person). But its range also concerns: the extension of our concept of autonomy, the asymmetry of our relations to rules, principles, laws, of humans and machines, and in fact to a stronger extent our concept of relation. The question is thus whether this comparison, pertinent under some aspects in some contexts for certain ends, could have been adequate, turned out not be a comparison at all, such that the metaphorical could have become in such cases, literal. This affirmation could have seemed entirely incompatible with new possibilities of liberation rendered possible by technological innovations. In reality that is not the case since these possibilities are understood as such against the background of precedent possibilities. The problem we then shall pose is the following: to which extent does the comparison or metaphor or analogy of human machine render possible the necessarily nonrestrictive limits of intelligibility? What are the limits of this comparison? To which extent does the recourse to this comparison turn out beneficial? To contribute to the resolution of this problem, I shall propose to put the comparison between machines and us and of us with machines at the test of the problematic of solipsism. To achieve this task, I present the criticism made by Lewis of solipsism (1934), and then present Turing’s critical reconception of solipsism (1950). I then attempt to establish the way in which Wittgenstein, with his criticism of solipsism (1953), functionalism, and reductionism, solves the problems encountered by the conceptions of solipsism of Turing and Lewis.