This photo of a dress has now divided all of humanity into dueling factions, with sane individuals who see this image as white and gold pitted against the dangerous loons who perceive it as blue and black. (OK, so the dress is blue and black in real life, but the argument is about how it appears in this particular photo.)
Why people see the dress differently hasn’t been conclusively figured out. The more prominent theories have to do with color constancy, or the way that an object appears to stay the same color under different lighting. This process can get dicey when colored light comes into play, as Dr. Jay Neitz told Vice.
