Global Positioning System technology relies on satellite transmission of signal time stamps and triangulation calculations to determine precise location. The system operates through predetermined latency and signal propagation delays. However, when a moving subject is traveling at velocity that exceeds the system's ability to update coordinates, the GPS device experiences a temporal paradox: it receives data about a destination before the subject has announced departure, creating a situation where tense becomes meaningless and the past becomes a lag indicator.

Geophysics researcher Dr. Alan Voss was assigned to analyze GPS telemetry data from a vehicle that had participated in a 1991 cross-country movement and discovered something unprecedented in the dataset: the device was consistently updating with completed waypoint information approximately 30 minutes before the vehicle's actual arrival, as if the GPS was tracking not current position but future arrival. His analysis was labeled 'Instrument Malfunction' and the device was destroyed.

Technology forums occasionally see posts about GPS 'ghost data' or temporal anomalies, always with responses pointing out that the most likely explanation is either equipment failure or a user whose velocity has exceeded reasonable limits for the device to calculate properly.