The relation to the Other takes place in the concreteness of ethics and erotic relations ; in addition, this relation is quite generally mediated through technological devices. Here, we will confront the phenomenology and ethics of Levinas with a vision of technology as anthropologically constitutive and constituting. In particular, we will seek to set up a dialogue between the revelation of the face, on the one hand, and on the other hand a functional description of embodiment that takes into account its technological augmentation through the use of tools. The technological augmentation of ethical bodies will be described as involving an irreducible gap between the appeal from the other and the possibility of responding, a gap within the very domain of responsibility itself. Finally, by means of a comparative reading of Levinas with the existential analytics of Heidegger, we will arrive at a description of subjectivity as consisting in the accomplishment by a being-in-the-world of existing for-the-other.