These lines are straight. But why do they look rounded in this optical illusion?Decide promptly, but never give any reasons. Your decisions may be right, but your reasons are sure to be wrong. - Lord Mansfield
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Vertical Line Star Optical Illusion

Are the red lines straight?

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These lines are straight. But why do they look rounded in this optical illusion?

 

Scroll down for the answer and explanation.

 

 

Yes they are.

Explanation

When we see a sharp angle, our mind tries to adjust it to a right angel. In this optical illusion, the straight, red lines are pushed out and look rounded.

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