STEPHEN HAWKING IS 70 today. Our foremost living theoretical physicist, his work is given thoughtful appraisal by Luboš Motl, who ponders things astrophysical from Pilsen, in the Czech Republic, on his site, the reference frame.
What made Hawking somewhat special was that he was very good not only in quantum field theory as understood by particle physicists: he was doing lots of important research in general relativity, too. This pretty unusual combination has predestined him to become the first person who usefully merges these two mostly incompatible pillars of fundamental physics, namely QFT and GR.
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