It always bothered me that I knew the thing with The Dress but never was able to trick my brain to see both options, not until now (apologies for the terrible image In 2015, a photograph of a dress went viral, dividing viewers over whether its colors were blue and black or white and gold. This optical illusion highlighted differences in human color The Science Behind the Dress Illusion Eyepic Eye Care This explains how the blue black white gold dress illusion was possible. But it doesn't explain why some people saw it one way and some saw it the other, and no one seemed to see