" But except in rare circumstances, you can train until you’re blue in the face and you’d never be as good as if you just focused on one thing at a time.” What we’re doing when we multitask “is learning to be skillful at a superficial level.” The Roman philosopher Seneca May have put it best two thousand years ago: “To be everywhere is to be nowhere. "

― Nicholas Carr , The Shallows: What the Internet Is Doing to Our Brains