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The exceptionally high urea concentration [required for the scientists to simulate pre-life in the lab] was rationalized in the Nature paper by invoking a vision of drying lagoons on the early Earth. In a published rebuttal, I calculated that a large lagoon would have to be evaporated to the size of a puddle, without loss of its contents, to achieve that concentration. No such feature exists on Earth today.
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Unfortunately, neither chemists nor laboratories were present on the early Earth to produce RNA. -- Dr. Robert Shapiro, Scientific American.A scientist producing life in the lab does not demonstrate darwinism; she demonstrates intelligent design. Doh!