Every manufacturer can show an impressive accuracy specification. Few can demonstrate that two surveys performed a year apart can reliably measure a 5 mm movement instead of simply reproducing measurement noise. This presentation explores the difference between geometric accuracy and TimeShift capability—and why they should never be treated as the same performance indicator. Josip Rukavina, founder and CEO of Vectrino, challenges the industry's traditional focus on absolute accuracy. Drawing on real-world inspections of breakwaters, quay walls and other marine infrastructure, he demonstrates why repeatability, stable georeferencing and consistent acquisition are the true foundations of reliable change detection. Through the SeeUnderSea™ methodology, he explains how TimeShift inspections transform individual surveys into measurable asset histories that support confident maintenance and investment decisions. Because the real question is not whether your digital twin is accurate. The real question is whether it can tell you what changed.