So I imagine everybody has seen this picture by now:
which some people see as black and blue and others see as white and gold. Other pictures show that that dress is very much black and blue:
There has GOT to be somebody here who can explain this illusion. I've seen various explanations as to why the first image looks so convincingly white-and-gold to so many people (including me...), but none of them make the slightest bit of sense. I've heard it has to do with the overly white background of the first image, but she's standing next to somebody in a bright-white dress in the second image as well!
Any vision experts want to take a crack at what's going on here?