Full Idea
Pinker's rationalism involves four main ideas: mind is a computational system, which is massively modular with a lot of innate structure resulting from evolution.
Gist of Idea
Rationalism can be based on an evolved computational brain with innate structure
Source
Jerry A. Fodor (In a Critical Condition [2000], Ch.17)
Book Reference
Fodor,Jerry A.: 'In Critical Condition' [MIT 2000], p.204