Science, technology and ethics: from critical perspective to dialectical perspective.

It has been agreed upon, according to critical perspective, to distinguish the problems raised by scientific issues on the one hand and the problems raised by moral issues on the other. This distinction, at the genesis of theoretical ideology, postulates that experimental science is mere knowledge which, since it has nothing to do with action, cannot raise a moral problem. Yet the use of experimental techniques turns out to be a necessary means, although an insufficient one, to put to the test and to confirm the theoretical hypothesis of science. Thus, those techniques produce perceptible effects which can be assimilated to genuine transformation and are consequently capable of raising moral problems. It follows that the technical imperative of science can be conditioned by a moral imperative of technique, which leads to modification of the object of the research and dubs it, a dialectical object. It is, however, advisable to effect a demarcation between that which, within the frame work of research in experimental science, can pose a moral problem and which cannot. The criterion of refusability of practical projects, by analogy with Popper's criterion of refutability of theoretical conjectures, allows for this demarcation to be implemented. It postulates that only the technical projects of science, apart from scientific theories, can pose a moral problem or can be recognized as moral, providing that the conditions of a possible ethical refusal can be expressed. From the analysis and the synthesis of heterogeneous possibilities, dialectical perspective thus outlined represents an endeavour to go beyond critical perspective, while trying to seek an intermediary channel between the "progressist dogmatism" of science and the obscurantist scepticism" of morals.