The “thirty-is-the-new-twenty” and “YOLO” culture tells us the twenty something years don’t matter. Some say they are a second adolescence. Others call them an emerging adulthood. Dr. Meg Jay, a clinical psychologist, argues that twenty somethings have been caught in a swirl of hype and misinformation. The data shows that our twenties are actually the most defining decade of adulthood – professionally and personally.