Inside the restaurant kitchen, only 1 in 9 can find the watch in 6 seconds.

Optical illusions, once thought of as witchcraft, later understood as brain tricks with simple shapes. 

Illusions tricking us, anciently feared as witchcraft, now understood as perception quirks. 

Illusions deceive, once feared as witchcraft, now explained by perception. 

Illusions, once feared as witchcraft, now understood as brain tricks with shapes. 

Ancient fears of witchcraft tied to illusions now explained by perception. 

Illusions once feared as witchcraft, now understood through perception. 

Optical illusions, once witchcraft fears, now simple perception tricks. 

Illusions, once witchcraft fears, now explained as perception quirks. 

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Pink posts a video of a heart on a cloud to remember her late father.