I've been thinking about "the dress" for 10 years. Here's what I've learned. In 2015, a photograph of a dress went viral, dividing viewers over whether its colors were blue and black or white and gold. This optical illusion highlighted differences in human color The Science Behind the Dress Illusion Eyepic Eye Care The Roman Originals Black and Blue Dress Business Insider ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive Is the dress blue black or white gold? Body Worlds Amsterdam