Methodology A common criticism of NKS is that it does not follow established scientific methodology. For instance, NKS does not establish rigorous mathematical definitions, nor does it attempt to prove theorems; and most formulas and equations are written in Mathematica rather than standard notation. Along these lines, NKS has also been criticized for being heavily visual, with much information conveyed by pictures that lack formal meaning. It has also been criticized for not using modern research in the field of complexity, particularly works on complexity from a rigorous mathematical perspective. And it has been criticized for misrepresenting chaos theory.
Methodology A common criticism of NKS is that it does not follow established scientific methodology. For instance, NKS does not establish rigorous mathematical definitions nor does it attempt to prove theorems; and most formulas and equations are written in Mathematica rather than standard notation. Along these lines, NKS has also been criticized for being heavily visual, with much information conveyed by pictures that lack formal meaning. It has also been criticized for not using modern research in the field of complexity, particularly works on complexity from a rigorous mathematical perspective. And it has been criticized for misrepresenting chaos theory.