I’ve noted how this research profoundly changed me and what I think about how life works. And one of the most significant transformations is my appreciation for the inevitable fog of life. Fog, I came to understand, is a common human experience, even for people who otherwise seem to have great clarity about what to make of their lives. And if episodes of fog enveloped even people in this study, none of us should judge ourselves harshly when we wake up one day to find ourselves befuddled and confused in the fog.