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is highly unlikely. Instead, he proposed that life arose from some self-sustaining and compartmentalized reaction of simple molecules: "metabolism first" instead of "RNA first". This reaction would have to be able to reproduce and evolve, eventually leading to RNA. He claimed that in this view life
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Life Beyond Earth: The
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Origins: A Skeptic's Guide to the
Creation of Life on Earth
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Origins, a
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This biographical article about an
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Planetary Dreams: The Quest to
Discover Life Beyond Earth
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NYU chemist Robert
Shapiro decries RNA-first possibility
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