The 'Hand Stopping Dominoes' meme is a popular visual metaphor used to illustrate how a single person, event, or action can prevent a catastrophic chain reaction. The image typically shows a line of small dominoes falling toward a significantly larger one, only to be halted by a hand placed firmly in the middle. It serves as the perfect template for 'clutch' moments, where something seemingly small—like a supportive friend, a specific habit, or a stroke of luck—acts as a circuit breaker for a downward spiral. Its popularity stems from its relatable nature, often used to humorously depict how people manage stress, financial ruin, or social disasters through minor interventions.