Allen Newell’s Knowledge Level theory is a philosophical
position on the reality of knowledge that is best understood
through the lens of Pragmatism--specifically, the view that the
practical effects of general concepts are indelibly linked with
the reality of those concepts. Consequently, the reality of the
knowledge level is context-dependent. Newell’s theory
reduces the complexity of analyzing every mechanism behind
intelligence systems by abstracting away details irrelevant to
predicting behavior and, as such, is more important than ever
in light of current challenges in cognitive science.