Beginning with Friedrich Kittler and Sybille Krämer’s analyses of technique and their reflections on the ontology of media, this research argues that Medienwissenschaft, which is often translated as “German media theories,” is intended to reflect on and fight against the ignorance of technique by the theoretical knowledge in Western philosophy. The aim of Medienwissenschaft is not to develop theories for media but to analyze the techniques through which theories, knowledge systems, and cultures are constructed. This research also indicates that in Medienwissenschaft, medium is regarded as technique because they both, deriving from their “being-in-between,” open up “in-between-spaces” for the transmission of messages and the production of artifacts as the preconditions for theories, knowledge systems, and cultures.