For decades, urbanists have been thinking about cities as organisms. They take in resources, eject waste, spread and grow. Theoretical physicist Geoffrey West decided to put the idea through the mathematical ringer. So, are cities like organisms? Yes. And no.
You can also hear the uncut interview with West.
Nobel Laureate psychologist Daniel Kahneman talks to Steve Paulson about the two basic systems that drive the way we think. Kahneman is the author of "Thinking, Fast and Slow.'
David John is a chess Life Master. He went to college on a chess scholarship, but now makes his living as a professional poker player in Las Vegas.
Historian David Blight tells Jim Fleming that popular memory of the Civil War all but obliterated the liberation of Black Americans.
Contemplating the multiverse is mind-blowing, but if you want a truly earth-shattering controversy in physics, you have to go back 500 years to Copernicus' radical theory. Dava Sobel tells his story.
Erik Davis, a fifth generation Californian, tells Jim Fleming that geographically and culturally, his state supports diversity and exploration.
Dean Hamer says that human beings are hard-wired for belief and are genetically pre-disposed to reach beyond their own limitations.
Michelle Wildgen recommends "Crossing to Safety" by Wallace Stegner.
