Video prompt: A swing dance marathon, where participants dance through the night, mastering moves, and energetically weaving across the floor to lively jazz and big band tunes.
Defect: Deformation (any reason involved with a movement)
Explanation: As this group dances, they merge and deform together, making it difficult to distinguish individual shapes and boundaries. The entire scene becomes very blurry, with an indistinct, fused appearance that obscures each person’s form.