noun
closed world
Technical term used in philosophy, logic, computer science, and game studies to describe a self-contained system or universe with fixed rules and boundaries.
このゲームは閉世界の設定で、プレイヤーは限られた空間の中で行動する。
This game has a closed-world setting, where players act within a limited space.
閉世界仮説は、データベースにない情報は偽であるとみなす。
The closed-world assumption considers information not in the database to be false.