People behave differently when they know they’re seen. The couple by the pier tightened their elbows; the delivery driver checked his watch like someone rehearsing alibi. But there are edges that cameras can’t parse — tiredness, curiosity, the private math of loneliness. Those slips are what kept Mara awake on long nights: a cat slipping from shadow, an old dog slowing its gait, two strangers sharing a secret laugh that a thousand verification protocols couldn’t reduce to percentages.