“Fortunately, that’s exactly what engineers like to work on.”… When the emergency broadcast flickered across every public screen, people first assumed it was another AI-generated hoax. The message was short. “Global navigation satellite timing irregularities detected. Financial exchanges, logistics networks, and critical infrastructure are entering coordinated safe mode. Remain calm.” Within minutes, container ports slowed. High-frequency trading systems halted themselves rather than risk executing orders with corrupted timestamps. Autonomous cargo trucks pulled safely onto the shoulders of highways because they could no longer verify positioning with sufficient confidence. Modern civilization had become so dependent on precise timing—provided by constellations of navigation satellites—that a discrepancy measured in billionths of a second could ripple through economies. Professor Elena Sato watched the unfolding chaos from the Tokyo Institute of Technology. H...