This article sets a dialogue between the concept of medium –as presented by Marshall McLuhan– and the concept of myth –as articulated by Roland Barthes– to evidence their similar anchoring, and thus bring closer the work of these two thinkers, whose different starting points notwithstanding, converge conceptually to better grasp the notion of macromyth, and become aware of the bearing this construction has upon the renowned McLuhan statement: the medium is the message.