Before Information: Languages, Dictionaries, Alphabets, and Messages

Information theory traditionally begins with messages represented as sequences of symbols drawn from an alphabet. The existence of such alphabets is usually treated as a primitive assumption. This paper argues that alphabets are not primitive objects but derived structures emerging from a deeper hierarchy. We propose the dependency chain Language → Dictionary → Alphabet → Message → Information and examine its consequences for information theory and cryptography. Languages establish systems of distinctions, dictionaries stabilize those distinctions, alphabets provide symbolic representations, and messages emerge as sequences of alphabetic projections. Information therefore appears not as a foundational entity but as the result of prior processes of symbolic stabilization. This perspective reveals a hidden assumption shared by information theory and cryptography: the existence of an observable alphabet. The paper discusses the implications of this observation and outlines its relevance for future research on alphabet formation, cryptographic interpretation, and post-alphabetic communication systems.