A woman stands on the sidewalk, pointing her camera at the sky, extending her arm as if holding it closer to heaven gives her a sharper picture of it. Of course, she’s taking a picture of herself. What from a distance looks like someone holding a torch or sending a signal to outer space is in fact a woman pinpointing her own smile. Nice to have all these smiles documented, there must be billions and billions of them, galaxies, held together by gravity. I tell Mappiness, the happiness mapping app, I’m happy, relaxed, awake.