Science explains how time spent outdoors colors your view of #thedress Los Angeles Times Ten years ago, a photo of a dress posted on Tumblr sparked a massive debate: was it blue and black or white and gold? Millions argued online, and even celebrities joined in. Scientists later explained 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, I've been thinking about "the dress" for 10 years. Here's what I've learned.