Mark Zuckerberg’s Grey T-Shirt Rule: Escaping Decision Fatigue

For years, the photographs barely changed. The same grey T-shirt. The same jeans. Different rooms, different days, identical silhouette. To the public, it looked like indifference. To critics, a lack of personality. But to Mark Zuckerberg, it was something far more calculated: a way to protect his attention from being slowly drained by choices that didn’t deserve it. The grey T-shirt wasn’t a fashion statement. It was an exit ramp. A Role Defined by Relentless Choice :contentReference[oaicite:0] operates in an environment where decisions never stop compounding. Product direction, platform policy, moderation rules, acquisitions, global backlash—each choice branches into consequences that can’t be reversed easily. In that context, mental energy becomes the real currency. Zuckerberg understood early that not all decisions…