What is adaptive thinking?

Adaptive thinking is a concept in personal epistemology: Revising a model in response to evidence is the defining act of a strong thinker. The refusal to update is not confidence — it is cognitive debt accumulating interest.

Example: A senior engineer spent two years championing a microservices migration. Midway through, latency data showed the architecture was creating more problems than it solved. Instead of adjusting course, she doubled down — reinterpreting latency spikes as "growing pains" and dismissing team concerns as resistance to change. A junior engineer on the same team reviewed the same data, proposed a hybrid approach, and presented the revision not as a failure of the original plan but as an evidence-driven iteration. The senior engineer saw updating as retreat. The junior engineer saw it as navigation. The project eventually adopted the hybrid approach — six months later than it should have, at twice the cost.

This concept is part of Phase 16 (Schema Evolution) in the How to Think curriculum, which builds the epistemic infrastructure for schema evolution.