Linguistic and Cultural Competencies in Dynamic Possible Worlds

Linguistic and Cultural Competences are closely linked, as they involve the ability to infer and trace truths within knowledge stored in memory. Humans respond to three interrelated questions: Logic, Epistemology, and Ontology. This paper defines a place for Cultural Competence within these philosophies through Epistemic Modal Logic and Dynamic Possible Worlds. Cultural Competence is crucial in social robots: pleasantness goes with it, but it also has practical functions, managing incomplete pieces of knowledge and shortening the customisation. The artificial agent simulates empathy and meta-cognition, enacting justified action plans that conform with ontology and its awareness thanks to the Euclidean S5 accessibility relation between possible worlds.