Scientists Are Mapping the Boundaries of What Is Knowable and Unknowable

Physicists have uncovered a fundamental limitation called undecidability, which surpasses chaos theory and quantum uncertainty in both classical and quantum systems. Even with perfect knowledge of a system's current state, some questions about its future behavior remain unanswerable. Examples include Moore's theoretical pinball machine and quantum materials with unpredictable properties. These findings, although applicable to idealized systems, underscore the limits of human knowledge and our ability to forecast complex phenomena.