The "Dual System" refers to a framework where two distinct but interconnected systems operate simultaneously. This concept is often applied in various fields, such as education, where traditional and modern teaching methods coexist to enhance learning experiences. In economics, it can describe the interaction between formal and informal markets. In the context of psychology, the Dual System Theory suggests that human decision-making involves two systems: an intuitive, fast-thinking system and a slower, more analytical one. Understanding this duality helps explain behaviors and choices, highlighting the complexity of human cognition and the factors influencing our decisions.