How Long Can We Live? (…and How Long Should We Live?) – clip

Jacob Appel / Brown University

Given the remarkable scientific and medical strides in the past few decades, many of us now wonder: “How long can humans live?” Of course, that brings up the difficult issues that society needs to deal with: How long should humans live? In other words, what are the complicated ethical challenges brought about by extending lifespans? Babies born this year have a life expectancy of 80 years, but just half a century ago that number was 72, and a full century ago it was just 50!