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Episode 283

Earth 2.0: What Would Our Economy Look Like?

…we start with — what else? — economics. You’ll hear from Nobel laureate Angus Deaton, the poverty-fighting superhero Jeff Sachs; and many others. (Part 1 of the “Earth 2.0” series.)…

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Episode 301

What Would Be the Best Universal Language?

…Esperanto! The search for a common language goes back millennia, but so much still gets lost in translation. Will technology finally solve that? (Part 4 of the “Earth 2.0” series.)…

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Episode 284

Is Income Inequality Inevitable?

…work, the toxic remnants of colonization, and whether giving everyone a basic income would be genius — or maybe the worst idea ever. (Part 2 of the “Earth 2.0” series.)…

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Episode 300

Why Don’t We All Speak the Same Language?

There are 7,000 languages spoken on Earth. What are the costs — and benefits — of our modern-day Tower of Babel? (Part 3 of the “Earth 2.0” series.)…

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Episode 102

Adding Ten Healthy Years to Your Life

Physician Peter Attia returns to the show to talk about the science of longevity — which focuses not only on extending life but on maintaining good health into old age….

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Episode 302

Why Learn Esperanto? (Special Feature)

…never really caught on. So why does a group of Esperantists from around the world gather once a year to celebrate their bond? (Part 5 of the “Earth 2.0” series.)…

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Episode 81

Why Bother Searching for Aliens?

Astronomer Jill Tarter spent her career searching for extraterrestrial intelligence. She explains what civilizations from other planets could teach us about our own future….

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Episode 207

Should We Really Behave Like Economists Say We Do?

One man’s attempt to remake his life in the mold of homo economicus.

Freakonomics 2.0

Just arrived in the mail is a handsome new book called Freakonomics: Revised and Expanded Edition, which should be in stores in a week or two. (Here is the Amazon…



Turbulent Souls 2.0

I’m happy to announce that my first book, a family memoir called Turbulent Souls, has just been republished by HarperCollins. It’s got a new cover, a new essay in the…




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Episode 152

Hunting for the Origins of Life

Chemist Jack Szostak wants to understand how the first life forms came into being on Earth. He and Steve discuss the danger of “mirror bacteria,” the origin of biology in…

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Episode 113

Do We Have Evidence of Alien Life?

Avi Loeb is a Harvard astronomer who argues that we’ve already encountered extraterrestrial technology. His approach to the search for interstellar objects is scientific, but how plausible is his argument?

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Episode 638

Are You Ready for the Elder Swell?

In the U.S., there will soon be more people over 65 than there are under 18 — and it’s not just lifespan that’s improving, it’s “healthspan” too. Unfortunately, the American…

The SuperFreakonomics Global-Warming Fact Quiz

…the facts surrounding global warming. Take the following true/false quiz to test your knowledge of the science, economics, and technology of global warming. Global-warming science questions: 1. The Earth has…



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Episode 367

The Future of Meat

Global demand for beef, chicken, and pork continues to rise. So do concerns about environmental and other costs. Will reconciling these two forces be possible — or, even better, Impossible™?

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Episode 367

The Future of Meat (Replay)

Global demand for beef, chicken, and pork continues to rise. So do concerns about environmental and other costs. Will reconciling these two forces be possible — or, even better, Impossible™?

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Episode 106

Will A.I. Make Us Smarter?

Kevin Kelly believes A.I. will create more problems for humanity — and help us solve them. He talks to Steve about embracing complexity, staying enthusiastic, and taking the 10,000-year view….

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Episode 72

Helium

It’s unreactive, lighter than air, and surprisingly important to the global economy. Zachary Crockett goes up an octave….

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Episode 282

Could Solving This One Problem Solve All the Others?

The biggest problem with humanity is humans themselves. Too often, we make choices — what we eat, how we spend our money and time — that undermine our well-being. An…

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Episode 51

Max Tegmark on Why Treating Humanity Like a Child Will Save Us All

…an economist. He also tells Steve why we should be optimistic about the future of humanity (assuming we move Earth to a larger orbit before the sun evaporates our oceans)….


The Rare Earth Conundrum

…a mainstay, we may be trading one dependence for another that is even more troubling. Ninety-five percent of the world’s output of rare-earth metals today comes from one country: China….



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Episode 346

Two (Totally Opposite) Ways to Save the Planet (Replay)

The environmentalists say we’re doomed if we don’t drastically reduce consumption. The technologists say that human ingenuity can solve just about any problem. A debate that’s been around for decades…

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Episode 72

“Leaving Black People in the Lurch”

Linguist and social commentator John McWhorter explains how good intentions may be hurting Black America — and where the word “motherf*cker” comes from….

Special Series

…U.S. Is Just Different The Hidden Side of the Art Market Covid-19 How To Be Creative The Hidden Side of Sports The Secret Life of a C.E.O. Earth 2.0 Series…



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Episode 145

Neil deGrasse Tyson Is Still Starstruck

The director of the Hayden Planetarium is one of the best science communicators of our time. He and Steve talk about his role in reclassifying Pluto, bad teachers, and why…

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Episode 179

Outsiders by Design

What does it mean to pursue something that everyone else thinks is nuts? And what does it take to succeed?

After Google Earth Is Banned, What's Next?

For all the good that Google Earth has brought to the world, it’s been a boon for ne’er-do-wells and mischief-makers as well. In the U.K., teenage hooligans allegedly use it…



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Episode 74

Getting Our Hands Dirty

Soil scientist Asmeret Asefaw Berhe could soon hold one of the most important jobs in science. She explains why the ground beneath our feet is one of our greatest resources…