What is the characteristic of real motion?

Real motion is characterized by the actual movement of objects in the environment. This means that for something to be considered in real motion, there must be a physical displacement of the object itself. Movement involves not just the perception of motion but the actual change in position of an object over time. When light is reflected from a moving object, the object itself is changing its location in space, which is essential for defining real motion.

While the perception of stationary objects, illusions, or visual cues from a background can influence how we perceive motion, they do not constitute real motion. Real motion is fundamentally about the observable, physical movement of an object rather than perceptual or contextual elements.