teravusi
Teravusi is a term that has emerged in informal online discussions, particularly within certain gaming communities. It generally refers to a state of being highly focused, intensely engaged, or exceptionally skilled at a particular task or activity. The word itself is a portmanteau, believed to combine "tera" (a prefix often associated with vastness or immense scale, as in terabyte) and "focuusi" (a Finnish word for focus or concentration).
While not a formally recognized psychological or scientific term, "teravusi" encapsulates a feeling of deep immersion,