Embracing the endless journey: navigating complex systems, agency, and positioning in learning contexts.

Agency in foreign language learning emerges as a fundamental capacity for inten tional action, shaped by the interplay of individual, contextual, and systemic factors. This chapter examines how learners navigate these dynamics, focusing on their metacognitive, motivational processes, and the broader societal and behavioral contexts. Drawing on data from learning diaries and follow-up meetings, the research explores how affective variables, motivation, metacognitive skills, resources, and beliefs contribute to the development of agency. The findings highlight the coadaptive nature of agency, revealing it as a dynamic, contextually enacted capacity. Agency is not unidimensional; it develops through the interaction of intrapersonal, behavioral, and environmental factors, reflecting the complexity of human experience. Methodologically, the study adopts an interdisciplinary approach, situating the learning experience within a framework that reflects the interconnectedness of the world, its affordances, and the human condition. By integrating linguistic, psychological, and social dimensions, the research highlights that agency mirrors the complexity of these systems, offering insights into the contextual and relational processes that shape learning. This research supports the view of agency as a complex dynamic system, adapting to available resources, which allows learners to align their actions with their goals. The pedagogical implications are twofold: first, empowering students to monitor their own progress and adapt strategies consciously, and second, advocating for educational models based on dynamic systems thinking, prioritizing the fluid and adaptive nature of learning. By emphasizing the relational-developmental outlook of complex systems, this study contributes to the understanding of agency evolvement in open, interconnected learning environments.