In the framework of the theory of the semiosphere elaborated by Juri Lotman in the 1980s, the notion of translation acquires a new, broadened meaning and is used to describe a general mechanism of cultural dynamics. This is a direct consequence of the understanding of the semiosphere as a “continuum of semiotic systems” of which heterogeneity and polyglotism are constitutive features. If the “smallest functioning semiotic mechanism” is not an isolated system, but always a (at least) binary system, translation will (...) play a central role in communication not only between different cultures, but also within every single culture.The article focuses on the different places of translation within the semiosphere as a system of systems and its relations to the notion of border. It argues that in Lotman’s theory, translation can function both as a homogenizing and a heterogenizing semiotic force, depending on its position at the center or the periphery of a given semiotic system. The first part of the article develops a theoretical argument on the relation between translation processes and cultural borders, which acquire different meanings and functions within Lotman’s theory of the semiosphere corresponding to differently oriented kinds of translation. The second part of the article develops a close analysis of Giacomo Leopardi’s poem “L’Infinito,” where the tension and dialogue between the different functions of the Lotmanian borders and the different kinds of cultural translation become devices for the generation of new meanings. Finally, the article briefly considers the significance of Lotman’s semiospheric understanding of the relation between borders and translation for contemporary translation and border studies. (shrink)