David and Goliath

“Power has a shape, and shapes have edges.”

Gladwell's central move is to examine where an apparent advantage stops helping and starts constraining.

“Underdogs win by refusing the expected game.”

David does not beat Goliath at giant fighting. He changes distance, tempo, and weapon.

“Difficulty can train uncommon adaptations.”

Some disadvantages force skills, urgency, and social strategies that comfortable conditions never demand.

“More is not always better.”

The inverted-U idea matters: class size, wealth, punishment, and authority can pass their useful point.

“Legitimacy is a form of power.”

Authority works only while people believe it is fair, predictable, and listening.