Abstract

In The Imperative of Responsibility, published in German in 1979 and in English five years later, Hans Jonas introduced a new moral imperative for the technological age that runs as follows : «Act so that the effects of your action are compatible with the permanence of genuine human life». This article has two objectives: firstly to clarify what it means to live, in Jonas’ sense, a genuine human life, and secondly whether we can still live such a life if we radically enhance ourselves the way transhumanists tell us we should. We use two concepts from Jonas’ thought to flesh out the notion of genuine humanity — the human condition and the idea of Man — and argue that human enhancement could indeed compromise both: a prospect to be avoided.