Why does the Ponzo illusion work?

Name: Why does the Ponzo illusion work?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The Ponzo illusion works because viewers misunderstand cues related to linear perspective. The converging lines in the background create a sense of depth, which makes the top line appear larger than the bottom line even though they are actually the same length. This illusion occurs because the brain assumes that objects situated closer to converging lines are larger than objects that are further away from the lines.

Why Does the Ponzo Illusion Work