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Knowledge

Facts, science and history of optical illusions.
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Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Is this a bird or a rabbit?

Ambiguous illusions

Forced perspective image Pisa tower

Forced Perspective

Shit music

Pigeons sitting on wires creating shit music

Source/credit: Guggenhein

These pigeons sitting on wires look like musical notes.

The song that these birds created seems very hard to play, and real shit music…. or is it sheet music?

More optical illusions:

Eyes of the Amazon

Confusing pants

Model ship on poles

Cat defies gravity

Trail Runner Going into the Woods

Grate View of Central Park

This bird has teeth.

Smile!

Birds

Proof that birds are not real, and are spy drones

Birds are not Real

Birds