Quelques enjeux sur les langues, à partir d’un point de vue d’hétérogénéité

Abstract

This article in tribute to Enrica Galazzi aims to reflect on how sociolinguistics explores diversity and variation in and across languages. As manifestations of heterogeneity in language(s), diversity and variation seem to play a role as indicators of the relationship to otherness and openness to the multiple. Various examples will be reviewed, along with the story of a human and scientific friendship that has lasted for several decades.