Sources of Power: How People Make Decisions 2Nd MIT Press Pbk. Ed

This is the "parts requirement" for building a mental simulation: a maximum of three moving parts. The design specification is that the mental simulation has to do its job in six steps.

A second application is to be sensitive to when you need to compare options and when you do not. For many tasks, we are novices, and the rational choice method helps us when we lack the expertise to recognize

singular evaluation approach,