1.
Tailwinds don't last forever. Demographics, cheap capital, and consumer trends that built you can reverse fast—smart operators exit before the tide turns.
2.
Airplane economics are brutal. High fixed costs mean a 10% demand drop can flip you from profit to bankruptcy when you're capacity-constrained.
3.
Generational bets are fragile. Millennials loved craft beer; Gen Z thinks it's fake. If your model depends on one cohort, plan for the cliff.