Reason-Based Thinking as a Prerequisite for Development: Centering on Abstract Conceptual Operation Capacity

v1.1: Added discussion of ideological labeling as a cognitive avoidance pattern (Section II). This working paper advances the hypothesis that Reason-Based Thinking functions as a necessary condition for psychological development. It defines Reason-Based Thinking as the capacity to operate with abstract concepts and reconstruct concrete experience from a higher structural level, distinguishes it from Sensitivity as an independent developmental condition, and examines its relationship to existing theories including Kegan, Dabrowski, and Commons. This paper is positioned as a supplementary elaboration within the Mental-4-Element Framework (v1.4).