I've been thinking about "the dress" for 10 years. Here's what I've learned. Why did some people see a gold and white dress? Our Brain White and gold or blue and black what colour is the dress? An eyewitness gives a definitive answer The Independent The Independent How Does Your State Sales Tax See That Blue and Black (or White and Gold) Dress? 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,