Eleven years ago, a single photo posted on Tumblr sparked one of the biggest internet debates of all time. The dress instantly divided the world, some swore it was white and gold, Long Sleeve Mesh Insert Midi Dress Black Black Mesh Illusion Cut out Mini Dress Haute and Rebellious Haute & Rebellious 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