We've all seen the optical illusions that ask viewers to look at a picture and decide which of two images they see: Old woman or young woman? Rabbit or duck? Two faces or a vase? Now, thanks to Olly Moss, superhero fans can ask themselves an even more important question: Wolverine... or two Batmen? As ambiguous images are often used in psychological analyses like the Rorschach test, consider taking a moment this morning to think about which hero you saw first, and what that means about you a person. Really think. [via io9]