Most Adults Lack the Cognitive Complexity Democracy Requires

Kohlberg's model of moral development describes three tiers: pre-conventional reasoning driven by punishment avoidance and self-interest, conventional reasoning organized around group norms and social conformity, and post-conventional reasoning where abstract principles and social contract logic become operative. The empirical data on adult populations is sobering: a substantial fraction remains at the pre-conventional level, the vast majority cluster in the conventional range, and post-conventional reasoning is rare. Robert Kegan's "In Over Our Heads" crystallized the structural implication — modern liberal democracies are architecturally predicated on post-conventional capacities that most citizens have not developed.

The consequences are not hypothetical. Concepts like due process, judicial independence, and separation of powers require the capacity to subordinate immediate outcomes to systemic principles. Due process means protecting procedural rights even for the obviously guilty. Separation of powers means tolerating institutional friction that slows desired action. For someone operating at a conventional or pre-conventional level, these features register not as design strengths but as system failures — bureaucratic obstruction, elite conspiracy, or simple incompetence.

This framing rejects genetic determinism. Developmental models are explicit that stage progression is possible throughout adulthood given the right conditions. The problem is that virtually no institutional effort is directed at fostering this development at scale. The result is a civilizational mismatch: governance structures that assume capacities the population largely lacks, with no systematic strategy for closing the gap.