I see the God complex around me all the time in my fellow economists. I see it in our business leaders. I see it in the politicians we vote for — people who, in the face of an incredibly complicated world, are nevertheless absolutely convinced that they understand the way that the world works.

Harford is criticizing a recurring form of overconfidence—what he labels a “God complex”—in domains that deal with complex, adaptive systems. Economists, executives, and politicians often feel pressured to project certainty, but that posture can become a dangerous conviction that the world is fully legible and controllable. The quote underscores a central theme in Harford’s work: humility and experimentation are better guides than grand, top‑down plans. In an “incredibly complicated world,” insisting on a single, comprehensive understanding can lead to brittle decisions, ignored feedback, and policy or business failures. The remark implicitly advocates for pluralism, evidence, and learning-by-doing over certainty.