This paper examines the potential for integrating augmented reality (AR) and daydreaming in order to conceptualise the concept of “Preja vu”. This enables students to visualise both the current (potential) and hypothetical (possible) states of the production process, thereby facilitating the anticipation of outcomes and the informed selection of courses of action. The utilisation of the daydreaming approach enables students to explore alternative scenarios, thereby fostering real-time decision-making and strategic foresighting. The concept of “Daydreaming in the Learning Factory” is based on a growth model, whereby the AR visualisations adapt to the skill level of the user, and offer increasingly complex insights as knowledge evolves. This strategy enhances safety, sustainability, and cost-efficiency while facilitating a collaborative, master-apprentice learning model tailored to contemporary manufacturing demands. The implementation of preja vu facilitates reflective and data-driven foresight, thereby enabling students to enhance their decision-making abilities, gain insight into the interplay between product design and production processes and eventually refine their judgement capabilities.