 The epistemic strategy is recommended by Chalmers (2002, 2003, 2006). The framework that gives rise to this strategy was presented in section 3.5. Narrow contents are to be thought of as effecting a partition of scenarios, which are similar to the centered worlds employed by the diagonalization strategy, into those endorsed by the thought and those excluded by it. But how exactly are we to determine which scenarios are which? On the diagonalization strategy, we make use of our preexisting grasp of ordinary content to determine what ordinary content the thought would express if it were located at the center of a particular centered world, and then determine whether that ordinary content is true at that centered world. The epistemic strategy is radically different, and treats narrow content as at least as fundamental as ordinary content.