In response, Levin argues that a novel color experience does in fact yield new factual knowledge, such as "information about the color's similarities and compatibilities with other colors, and its effect on other of our mental states." Tye counters that Mary could have (and would have, given the stipulations of the thought experiment) learned all such facts prior to leaving the room, without needing to experience the color firsthand. For example, Mary could know the fact "red is more like orange than green" without ever experiencing the colors in question.