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, The science behind the controversial blue black, gold white dress 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 USE YOUR ILLUSION. The Hundreds The Dress: Black, Blue, White, GoldA Visual Illusion as America Dies The Dress divided the Internet, but it's really about subtraction Science News