Overthinking isn’t just thinking too much—it’s a mismatch between your need for certainty and an uncertain world. Your brain predicts outcomes, and when those predictions fail, it loops to fix the gap. That loop is overthinking. It also treats uncertainty like danger, so it delays action to avoid mistakes. This makes overthinking a safety mechanism, not a flaw. It’s tied to perfectionism—you reject imperfect choices and stay stuck. It’s also addictive: thinking feels productive, so you avoid act