👉 The assuming fluid refers to the hypothetical substance that permeates all matter, acting as a medium for interactions and forces between particles. This fluid is often conceptualized as a form of energy or medium that allows for the movement and interaction of particles, facilitating processes like diffusion, viscosity, and chemical reactions. In various scientific contexts, the fluid assumption simplifies complex interactions by treating matter as a continuous, homogeneous substance, making it easier to model and predict physical phenomena.