How "The Dress" Became an Illusion Unlike Any Other Scientific American Is This Dress Blue And Black Or White And Gold? Here's What The Experts Say 10 years ago, a simple photograph of a dress sparked a global debate unlike anything seen online before. Posted in 2015, the image caused people to argue intensely over whether the dress Photo finally solves the black and blue white and gold dress debate Optical illusion renews blue and black dress debate nine years on Express.co.uk