 Carruthers’ (2011) Interpretive-Sensory Access account similarly takes self-knowledge to require self-interpretation. Rejecting the idea that there is an “inner sense”, a cognitive faculty dedicated specifically to self-knowledge, Carruthers proposes that a single “mindreading” system detects both one’s own mental states and the mental states of others. In fact, he hypothesizes that our “mindreading” system “evolved for outward-looking social purposes” and was only later co-opted for self-knowledge (2011:69). This system takes sensory data as input; interprets these data by drawing on situational facts and background information; and yields representations of mental states as output.