Vigilance is the state of being very alert and watchful, especially to notice danger or problems early.
From Latin “vigilantia,” meaning “wakefulness” or “alertness,” from “vigil,” meaning “awake” or “watchful.” It originally referred to staying awake to keep guard.
Vigilance isn’t just paying attention once; it’s paying attention again and again over time. Your brain actually gets tired doing this, which is why constant vigilance is so mentally exhausting.
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