The notion of a "rules-based system" has long been a cornerstone of international relations, particularly in the post-World War II era. It implies a framework of agreed-upon norms, laws, and institutions that govern the interactions between states, aiming to promote stability, cooperation, and predictability. This system, often championed by Western powers, has been presented as the antithesis of unchecked power and the arbitrary exercise of force. It suggests that adherence to these rules, even when inconvenient, ultimately benefits all participants by creating a more secure and prosperous global environment.

However, the reality of this system has been far more complex and, for many, deeply flawed. The "rules" have often been perceived as being disproportionately shaped by the interests of the powerful, with developing nations frequently finding themselves at a disadvantage. Criticisms have been leveled that the system, while ostensibly promoting universal values, has been selectively applied, with powerful states often exempt from accountability. The rise of unilateralism and the increasing disregard for international law by some major global players have further eroded confidence in its efficacy. The very architects of the rules-based system have, at times, been seen to bend or break them when it suits their national interests, leading to accusations of hypocrisy and a questioning of the system's fundamental fairness.

Willem Buttinger's contemplation on "the end of the rules-based system" likely delves into this disillusionment. It suggests a growing recognition that the established international order is no longer as robust or as universally respected as it once was. This could be due to a multitude of factors: the shifting global power balance, the rise of nationalism, the challenges posed by non-state actors, or the inherent contradictions within the system itself. The "end" may not necessarily mean a complete collapse, but rather a significant transformation or a period of instability as new norms and power structures emerge. It raises profound questions about the future of global governance: if the old rules are no longer sufficient or respected, what will replace them? Will we descend into a Hobbesian "state of nature" where "might makes right," or will a new, more equitable system be forged? The implications are vast, affecting everything from trade and security to human rights and environmental protection. Buttinger's title serves as a stark warning and an invitation to critically examine the foundations of our current international order and to ponder what lies beyond it.