Trade-offs are not a failure of planning; they are the structure of reality. You cannot do everything, so pretending you can only guarantees that someone else will choose for you.
The chapter argues that “I can do both” is usually a disguised “I haven’t decided.” The essentialist asks the sharper question: which problem do I prefer to solve? Because every yes creates a no—either now, explicitly, or later, in exhaustion.
Once you accept trade-offs, decisions get cleaner. You stop bargaining with yourself and start making one-time choices that remove repeated debates. That reduces decision fatigue and protects your best energy.
The point is not to make life smaller. It’s to make life intentional, so the few commitments you keep can be honored without regret.