The burgeoning field of third language (L3) acquisition has increasingly focused on intermediate stages of language development, aiming to establish the groundwork for comprehensive models of L3 learning that encompass the entire developmental sequence. This article underscores the importance of a robust epistemological foundation, advocating for…

While the idea of plurilingual competence is widely established theoretically and promoted in European language policies, it is not implemented in educational practice, where separate plurilingualism is still dominant. The idea of languages as autonomous entities is e.g. reflected in the "Common European Framework of Reference for…