The Labyrinth Index (Laundry Files, #9)

by Charles Stross

“You have imposter syndrome,” He says, “but paradoxically, that’s often a sign of competence. Only people who understand their work well enough to be intimidated by it can be terrified by their own ignorance. It’s the opposite of Dunning-Kruger syndrome, where the miserably incompetent think they’re on top of the job because they don’t understand it.”