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# The Viral Square Challenge and What It Teaches About Perception
But beyond its surface-level appeal, the Square Challenge provides a fascinating glimpse into **human perception, cognitive biases, and the quirks of our brains**. By unpacking why people see different things in the same image—or why some can solve it instantly while others struggle for minutes—we gain insight into how perception is shaped by both biology and experience.
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## What Is the Square Challenge?
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