Abstract

This chapter reiterates the proposition that practical cognition should not aim at finding optimal solutions to practical problems. A rational cognizer should instead look for good solutions, and replace them with better solutions if any are found. Solutions come in the form of plans. In general, a change to the master plan may consist of deleting several local plans and adding several others. This theory is still fairly schematic. It leaves most details to the imagination of the reader, and in philosophy, that is often a recipe for disaster. When philosophical theories fail, it is not because they did not look good in the abstract—it is because it is impossible to make the details work. This chapter simply gives a preliminary sketch of how a resource bounded agent can actually perform locally global planning.