Science & the Search for Meaning: What is Life?

Scientists can now explain virtually every stage of the evolutionary process. But there’s a basic question that still mystifies even the best scientists: How did life first begin on Earth? Or to put in another way, how did non-life somehow turn into life? And can we say the Earth itself is alive? In this hour of To the Best of Our Knowledge we’ll talk with James Lovelock about his Gaia theory, and explore the question, What is Life?

SEGMENT 1:

This hour explores some of the fundamental mysteries of life - from how it first started on Earth to the possibility of supremely intelligent life on other planets and why technology is evolving like life itself. We begin with a rare recording of Nobel Prize winning physicist Edwin Schrodinger and comments on his book "What Is Life?" from Nobel Prize winning biologists James Watson and Harold Varmus. We also hear from Ken Miller, co-author of the most widely used biology textbook in American high schools, and Craig Venter, widely regarded as one of science’s leading innovators. Venter, who’s come as close as anyone has to creating life in a test tube, tells Steve Paulson what drives him. And we hear from some ordinary people about what they think life is.

SEGMENT 2:

University of Wisconsin geochemist Nita Sahai talks with Anne Strainchamps about how life might have begun on Earth. On the other hand, maybe the Earth itself is alive. That’s the remarkable idea behind the Gaia hypothesis. James Lovelock came up with it in the 1960s and at first no one would take him seriously. Lovelock, now in his nineties and one of our most celebrated scientists, tells Steve Paulson where the Gaia theory came from and how it’s evolved.

SEGMENT 3:

Kevin Kelly is one of the founders of Wired magazine. He’s also the author of a provocative book called "What Technology Wants." Kelly tells Jim Fleming that the sum total of our technology - what he calls "the technicum" - is taking on the properties of life itself. And anthropologist Tom Boellstorff takes us on a tour through the virtual world of Second Life. Astro-biologist Paul Davies chairs the SETI Post-Detection Task Group and is the author of "The Eerie Silence: Renewing Our Search for Alien Intelligence." He tells Steve Paulson that alien intelligence might be stranger than anything Hollywood has dreamt up.

http://www.wpr.org/book/101121a.cfm

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