EconTalk

To the Founding Fathers it was free libraries. To the 19th century rationalist philosophers it was a system of public schools. Today it's access to the internet. Since its beginnings, Americans have believed that if facts and information were available to all, a democratic utopia would prevail. But missing from these well-intentioned efforts, says author and journalist David McRaney, is the awareness that people's opinions are unrelated to their knowledge and intelligence. In fact, he explains, the better educated we become, the better we are at rationalizing what we already believe. Listen as the author of How Minds Change speaks with EconTalk host Russ Roberts about why it's so hard to change someone's mind, the best way to make it happen (if you absolutely must), and why teens are hard-wired not to take good advice from older people even if they are actually wiser.

Philosopher William MacAskill of the University of Oxford and a founder of the effective altruism movement talks about his book What We Owe the Future with EconTalk host Russ Roberts. MacAskill advocates "longtermism," giving great attention to the billions of people who will live on into the future long after we are gone. Topics discussed include the importance of moral entrepreneurs, why it's moral to have children, and the importance of trying to steer the future for better outcomes.

We spend too much of our health care focus on lifespan and not enough on healthspan--the quality of our life as we get older. So argues Dr. Peter Attia, author of Outlive: The Science and Art of Longevity. Attia speaks with EconTalk's Russ Roberts about what kills us, what slows us down as we age, and the weapons we have to allow us to live better and longer.

Suppose all of humanity was infected by a virus that left us all infertile--no one will come along after us. How would you react to such a world? Agnes Callard of the University of Chicago says she would be filled with despair. But why does this seem worse than our own inevitable deaths? Callard speaks with EconTalk host Russ Roberts about the meaning of life, and what exactly about the end of humanity is so demoralizing. The conversation concludes with a discussion of whether humanity is making progress.

When physician Walter Freeman died in 1972, he still believed that lobotomies were the best treatment for mental illness. A pioneer in the method, he was a deeply confident and charismatic man who eagerly spread the technique in America, long after the rise of alternative treatments that were less destructive. Listen as journalist Megan McArdle and EconTalk's Russ Roberts discuss what McArdle calls the "Oedipus Trap": mistakes that no one can live with, even if they were innocently made, and how admitting such mistakes to ourselves is nearly impossible. They also discuss the complexity of the credo, "follow the science."