don•key knowl•edge\ ˈdäŋ-kē ˈnä-lij \ n. (informal)

1. Knowledge you've gained from being a jackass.
2. Hard-earned, stubborn wisdom acquired through relentless trial, error, and sheer refusal to budge.
3. Practical insights gained by banging your head against the wall until a problem finally makes sense.

Stubbornness is a feature, not a bug; refusing to budge when everyone else is panicking looks like foolishness until you're the only one still standing.