"String theory was not invented to describe gravity; instead it originated in an attempt to describe the strong interactions, wherein mesons can be thought of as open strings with quarks at their ends. The fact that the theory automatically described closed strings as well, and that closed strings invariably produced gravitons and gravity, and that the resulting quantum theory of gravity was finite and consistent is one of the most appealing aspects of the theory."
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Original Language: English
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"Einstein and the Search for Unification", p. 10, in The legacy of Albert Einstein: a collection of essays in celebration of the year of physics (2007)
https://en.wikiquote.org/wiki/David_Gross
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David Gross
David Jonathan Gross (born February 19, 1941) is an American theoretical physicist and string theorist. Along with Frank Wilczek and David Politzer, he was awarded the 2004 Nobel Prize in Physics for their discovery of asymptotic freedom.
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