👉 The "dumb fluid" is a colloquial term for any fluid that flows easily and lacks viscosity, meaning it behaves like a liquid but has very low resistance to flow. Unlike normal fluids that require energy to move, dumb fluids flow with minimal effort, often due to their extremely low viscosity. This characteristic makes them difficult to contain or manipulate, as they tend to spread out and fill any available space quickly. Examples include water vapor in a room at high humidity, steam from a hot surface, or even the air in a sealed container with a small opening. The term highlights the fluid's almost liquid-like behavior, but without the usual properties that give fluids their thickness and resistance to flow.
