The Jastrow illusion is a visual trick where two identical curved shapes appear different sizes. This happens because of how our brains compare the inner and outer curves.
The inner curve of the bottom shape lines up with the outer curve of the top shape. The outer curve is always longer, so our brain sees the bottom shape as bigger, even though they’re the same.
It’s like comparing a banana to a crescent moon – they’re different shapes, but our brain still compares them based on their curves.
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