There are moments when it frightens us, threatening to expose us as inauthentic. Well, the big-time impostors we read about in literature run this risk constantly, flirting with destruction, not just humiliation or embarrassment. It's a spectacle that we can't help but find compelling, and it involves a certain level of courage that we sneakily admire, perhaps.

It's no accident that most self-help groups use 'anonymous' in their names; to Americans, the first step toward redemption is a ritual wiping out of the self, followed by the construction of a new one.

've always defined a truly alluring story as a journey we're not equipped to take ourselves with a person we're tempted but afraid to emulate. Impostor narratives are exactly that. When they end in disaster, as Clark's did, or as Gatsby's did, we can congratulate ourselves for our own wisdom. We can also experience, safely, at no cost, the terrible thrill of radical self-invention, of trading who we are for who we might be.

Short stories are fiction's R & D department, and failed or less-than-conclusive experiments are not just to be expected but to be hoped for.

Memo to extreme partisans: If you can't bring yourselves to love your enemies, can you at least learn to hate your friends?

I disagree that Blood Will Out is a memoir in the conventional sense. It's the story of a relationship, primarily, not an individual. The "me" in the book is a specialized version of me, the person who Clark manipulated and fooled. I could cover the same years of my life from an entirely different perspective in another book, by concentrating on my experience as a husband, say. But I was selective. I focused on my duping.

The strange anthropological lesson of social media is that human beings, if given a choice, often prefer to socialise alone.