Ad Infinitum An M.I.T. physicist takes a speculative look at space, time and the possibility of parallel universes. EDWARD FRENKEL February 16, 2014 at 5:00AM http://nyti.ms/1f1qPMt http://bit.ly/1nz4nLh The New York Times Books Mathematics

By EDWARD FRENKEL from NYT / Eethg. Corps. Inc. / Terrence Herschel G. Books http://nyti.ms/1f1qPMt

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