Humans are living longer than ever before. In fact, newborn children in high-income countries can expect to live to more than 100 years. Starting in the mid-1800s, human longevity has increased dramatically and life expectancy is increasing by an average of six hours a day. Have we reached the end of progress in increasing longevity? How long can we expect to live based on previous trends and biological constraints? What are the societal implications of this change? In this video, PRB president Bill Butz talks with James Vaupel, founding director of the Max Planck Institute for Demographic Research, about the amazing increase in human longevity over the past 200 years and how much longer human life expectancy can be extended.