The only thing an old man can tell a young man is that it goes fast, real fast, and if you’re not careful it’s... — Norm MacDonald

The only thing an old man can tell a young man is that it goes fast, real fast, and if you’re not careful it’s too late. Of course, the young man will never understand this truth.

Author: Norm MacDonald

Insight: There's something almost tender in Norm's dark observation here, because he's acknowledging a trap that's not anyone's fault. An old person can see the whole arc now—how a decade feels like a weekend once you're living it, how priorities that seemed urgent suddenly look silly, how relationships you took for granted become irreplaceable. They genuinely want to warn people about this. And they know it won't work. The frustration isn't actually about young people being stubborn or foolish. It's that understanding time's speed requires experiencing it, the same way you can't truly know what exhaustion feels like until you've lived it. The young person hears the warning and nods politely, but they're still convinced they have infinite tomorrows. They believe the warning applies to other people, not them. What makes this sting is that it's not really about age at all. We do this constantly—ignoring warnings about relationships, health, attention, money—not because we're dumb but because we're living at our own speed, convinced we'll course-correct later. The quiet tragedy is that sometimes we won't get the chance to become the old person who finally understands.