I have a teenager who makes lists. Not the practical kind—grocery, chores, pack for the trip—but the aspirational kind. Lists about her future. About who she will be. Where she will live. What will finally make her happy. Lists that assume a neat sequence of steps, each one leading to the next, until—ta da!—life clicks into place. She talks a lot about a perfect and wonderful life will be when she achieves those goals. And sometimes, watching her write yet another list, I cat