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 Neuroscientists Explain Discrepancy Behind "The Dress" Illusion 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 Adrianna By Adrianna Papell Beaded Illusion Neck Cocktail Dress, Black Gold