Scientific advances could lead to the creation of mirror life, a hypothetical form of life composed of molecules with reversed chirality relative to all known life on earth. Experts estimate that mirror life could become a reality within the next few decades, potentially enabling mirror bacteria to escape immune detection, resist degradation, and spread widely, causing irreversible biological disruption. The authors, including Nidhi Kalra of RAND Corporation, develop a comprehensive preventive strategy because adaptive governance offers little protection and reactive measures would be ineffective once a mirror organism exists.

They stress that the creation of mirror life by any actor poses a global catastrophic risk, making secrecy infeasible and transparency essential for trust and cooperation. Key recommendations call for the United States to engage scientific superpowers, especially China, to build collective restraint, prioritize transparent collaboration, and set early norms. U.S. policymakers should commit not to develop mirror life, advance legislation and treaties with long lead times, and treat countermeasures as limited contingencies. The strategy emphasizes proactive, inclusive governance to avert an unprecedented crisis before scientific progress closes the window for action, slated for publication in 2026.