How "The Dress" Became an Illusion Unlike Any Other Scientific American 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, ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive First brain scan study to feature THAT dress BPS How I Flipped My Brain's View of the Black and Blue Dress Jeff Greenhouse Why did some people see a gold and white dress? Our Brain