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 Neuroscientists Explain Discrepancy Behind "The Dress" Illusion Primavera Couture 4335 Size 0 Black Gold Sheer Beaded Prom Dress V Nec Glass Slipper Formals The Dress: Color debate rages on the Internet East Bay Times What color is the dress? Why do some people see blue and black and some people see gold and white when looking at a single image of a dress? : r askscience