A close‑up photograph of a basketball set against a dark background. The ball is lit from the left side, revealing its textured surface.

Bracket bias: How identity shapes our picks

Every March, millions of Americans fill out brackets convinced they’re making smart, data-driven picks. But when the upsets roll in — and our favorite teams advance further on our sheets than the stats suggest they should — it raises a bigger question: Are we choosing with our heads, or with our identities?