During the mapping-app test, designers asked users to speak aloud whenever they ignored the suggested route. The phone already recorded location, speed, and turns, so the extra narration seemed redundant. But the dots on the screen could not explain that a street felt unsafe after dark, that a staircase was difficult with a stroller, or that a familiar bakery made a longer path pleasant. The spoken comments gave reasons behind detours that tracking alone reduced to crooked lines.