the.com/illusion

a magic trick your brain performs on itself, then refuses to admit.

means Something that appears real or true but isn't — a deceptive impression of the senses or the mind.

from From Latin 'illusio,' meaning a mocking or a deception, built from 'illudere' — to play with, to make sport of — where 'ludere' is simply 'to play' (the same root that gives us 'ludicrous'). At its heart, an illusion is reality playing a little joke at your expense.

brain over eyes
perception is mostly guesswork, lightly fact-checked
the dress
two billion people argued over one photo's color
phantom limbs
amputees feel fingers that no longer exist
motion myth
film is still images fooling you 24 times a second
moon lie
the horizon moon only looks bigger
for instance

impossible triangle — penrose triangle, 1954, three-dimensional object that cannot exist in euclidean space but appears valid in 2d

spinning dancer illusion — 2003 silhouette that appears to rotate clockwise or counterclockwise depending on visual perception

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