There is no purple. Really, the drawing has only shades from gray to green, with the "purple pill" being actually grayish, yet you're likely perceiving it as purple. If purple isn't real, what else isn't? (and interestingly enough, this optical illusion is a very human thing to both draw and perceive, no algorithm can perceive the non-existent purple color) #illusion #opticalillusion #drawing #art #surreal #gnosticism #matrix #thematrix #uncannyvalley #uncanny