When Plans Break: Relaxing Petri Nets for Smarter Sequential Planning
Opening — Why this matters now Most AI planning systems are built for a comforting fiction: the world is stable, the goal is fixed, and a feasible plan exists somewhere if we search hard enough. Reality is less polite. Goals change. Constraints tighten. Resources vanish. And sometimes—awkwardly—no valid plan exists at all. The paper “Petri Net Relaxation for Infeasibility Explanation and Sequential Task Planning” (arXiv:2602.22094) confronts this head-on. Instead of asking only “How do we find a plan faster?”, it asks the more operationally honest question: ...