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"We have data showing that the proportion of people that can flip has increased over time." The dress has been so consequential to our understanding of the science of color perception that it has added to the body of evidence answering a question dating all the way back to the great philosopher Immanuel Kant, who in the 18th century theorized humans can never really know if they see color the same way, as they can't literally see through someone else's eyes

The simple scientific answer behind the debate is that it is an optical illusion

Its all about picking a dress that fits in with your party and makes it even more fun

Theres nothing frumpy about these stunners

Caitlin McNeil put the picture on the website Tumblr after she and her friends could not agree on the colour, a dilemma shared by millions of friends, family and work colleagues across the world