It's essentially his "Better Angels" expanded to most of the problems, perceived and real, facing the world. Sometimes our perceptions based on what makes it into news programming, or our general proclivity toward expecting the worst are different from reality. Take world poverty for example: Did you know that the number of people living in extreme poverty has fallen by an average of 137,000 persons PER DAY, every day, for the past twenty-five years? Similar info is provided for health, equality, violence, and on and on.