Fooled again.

An optical illusion experiment using tubular shapes and a mirror reveals how easy it is to beguile humans. Our eyes are very easy to manipulate and deceive. Our minds, not as easy, perhaps, unless we are dumbed-down enough to accept the blur of propaganda instead of examining the minute particulars for ourselves.

https://cosmosmagazine.com/mathematics/circles-or-squares-it-depends-on-your-point-of-view

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