The problematic reality of an alterity implicit in the concept of communication has been a consistent attestation in formal discourse. The rapport of thought to this alterity has been consistently described as a radical inadequation. By virtue of the communicational economy which produces discontinuity and relation, illumination and the possibility of consciousness, an opacity haunts the famili- arity of comprehension. Consciousness' spontaneity is limited by the difference or discontinuity of the exterior thing, of the exterior subject or intersubjective other, and of the generality of...