Do LLMs Have Thinking Styles? REI-40 Experiment on 5 Frontier Models

We administered the REI-40 dual-processing personality inventory to 5 frontier LLMs. The results reveal distinct ’thinking style’ profiles — from neutral responders to rational enthusiasts.

January 24, 2026 · rick

Two Minds in One Brain: Why We Act Irrationally Even When We Know Better

Why can’t you resist that midnight snack during a diet? Two independent processing systems live inside your head—one that calculates and one that feels. A look at Pacini & Epstein’s 1999 study on the Rational-Experiential Inventory.

January 24, 2026 · rick

The Curse of Talent, the Blessing of Temperament

Is talent a blessing or a trap? An analysis of how talent conditioned by short reward cycles sabotages long-term effort and breeds opportunism.

October 31, 2025 · rick