According to the work of David Lee (1980), the change in the size of an object informs the observer of

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David Lee's work in 1980 focused on the concept of "tau," which is related to the change in the size of an object's image on the retina. This change informs the observer about the time-to-contact, or how long it will take for the object to reach the observer if both continue on their current paths at their current speeds. This concept is particularly relevant in the context of motion perception and has applications in areas such as driving and sports.

According to the Work of David Lee (1980), the Change