It usually happens at an unremarkable moment. You are writing the date on a form, or scrolling past a photograph from a few years ago, or hearing that a child you remember as a toddler has started secondary school. And you notice, with a small jolt, that another year has gone. Not dramatically. It simply went, the way the previous one did, while you were busy with something else.
The jolt is followed, for many people, by a quiet audit. Is my life where I thought it would be by now? Have I done the things I said I would do? When, exactly, is the part where it all comes together supposed to begin?
That last question is the one this book is about.