When Brazil, Russia, India, China and South Africa expanded BRICS in the 2020s, the grouping appeared poised to become a major pillar of an emerging multipolar order. Today, it comprises 11 full members and 10 partner countries, giving it considerable demographic, economic and diplomatic weight. Yet expansion has also exposed a fundamental problem: BRICS is much better at expressing dissatisfaction with the existing international system than at agreeing on what should replace it.