The problem isn’t just that good ideas are always in danger of being shot down. In an unhealthy system good ideas often don’t see the light of day because everybody knows up front that bringing them up is a waste of time. I would wager that serial blockers have killed ten times more ideas in people’s heads than they’ve killed on the floor of meetings—just because everybody is convinced that bringing up an idea would be a waste of time, or because it would cause World War III . . .