  Let's move on now to the frame problem as it has been re-interpreted by various philosophers. The first significant mention of the frame problem in the philosophical literature was made by Dennett (1978, 125). The puzzle, according to Dennett, is how “a cognitive creature … with many beliefs about the world” can update those beliefs when it performs an act so that they remain “roughly faithful to the world”? In The Modularity of Mind, Fodor steps into a roboticist's shoes and, with the frame problem in mind, asks much the same question: “How … does the machine's program determine which beliefs the robot ought to re-evaluate given that it has embarked upon some or other course of action?” (Fodor 1983, 114).