I think too often what you see in some non fiction are books that simply confirm what we already believe, and try to do that in clever ways. I wanted to contest this idea because based on my research when i was formulating the idea, and then my subsequent research. This idea that we should be resolutely positive, that we shouldn't look backward, is wrongit it is wrong. It's a completely useless blueprint for living. My father has said to me over the years that he has no regrets. You can say, i'm happy and grateful for the life that i have, but i do have some regrets. One doesn't extinguish the other.