Theories that conceive technologies as extensions of human beings have been successful since the second half of the 20th century. This paradigm pointed out the anthropological dimension of technics and the technical constitution of human beings, abandoning the apocalyptical viewpoint. However, the idea of extension seems to imply strong anthropocentric assumptions, which survive in contemporary theories.
Recently the late 19th century philosopher Ernst Kapp has been rediscovered as the possible initiator of this paradigm, and therefore responsible for its limits. By studying his Elements of a Philosophy of Technology, together with Cassirer’s Form and Technology, which is based on Kapp’s theories, it may be possible to distinguish the most controversial aspects and those that could be useful today for a reform of the paradigm of extension.