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Profiles in cosmology

Four leading scientists search for the answers
Alan Guth: Reinventing the past at MIT In 1980, when Alan Guth first shared his ideas about inflation (a term he coined) with the scientific community, cosmology was soon transformed, but not as quickly as Guth's own life changed. At the time he was a postdoctoral researcher at Stanford with "uncertain" job prospects, at best. "My impression is that people thought I looked smart but hadn't done anything important," recalls Guth. "Looking smart had gotten me good appointments so far — includ...

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