Your twenties matter. Eighty percent of life’s most defining moments take place by age thirty-five. Your earning power is decided in your first ten years of work. More than half of us are married, or dating or living with our future partner, by age thirty. Your brain and your personality change more during your twenties than at any time before or after. Your social network is about as big as it is ever going to get. Your defining decade coincides with your peak childbearing years. Meanwhile, your twenties are the most uncertain years you will ever know.
