„Some of the effects predicted by the theory [of loop quantum gravity] appear to be in conflict with one of the principles of Einstein's special theory of relativity... that the speed of light is a universal constant.... Photons of higher energy travel slightly slower than low-energy photons.... the principle of [general] relativity is preserved but Einstein's special theory of relativity requires modification.... A photon can have an energy-dependent speed without violating the principle of [general] relativity!“

—  Lee Smolin
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„Einstein's theory of relativity“

—  Hermann Weyl German mathematician 1885 - 1955
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„Relativity theory forced the abandonment, in principle, of absolute space and absolute time.“

—  Marshall McLuhan Canadian educator, philosopher, and scholar-- a professor of English literature, a literary critic, and a communicat... 1918 - 1980
p. 43

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„General relativity is certainly a very beautiful theory, but how does one judge the elegance of physical theories generally?“

—  Roger Penrose English mathematical physicist, recreational mathematician and philosopher 1931
Ch. 1, Mathematical Elegance as a Driving Force, p. 7 https://books.google.com/books?id=T09kCwAAQBAJ&pg=PA7.

Edward Witten Foto

„String theory at its finest is, or should be, a new branch of geometry. ...I, myself, believe rather strongly that the proper setting for string theory will prove to be a suitable elaboration of the geometrical ideas upon which Einstein based general relativity.“

—  Edward Witten American theoretical physicist 1951
Context: String theory at its finest is, or should be, a new branch of geometry.... I, myself, believe rather strongly that the proper setting for string theory will prove to be a suitable elaboration of the geometrical ideas upon which Einstein based general relativity. "Edward Witten" interview, Superstrings: A Theory of Everything? (1992) ed. P.C.W. Davies, Julian Brown

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„It is almost impossible to have a baseless snobbish opinion of the General Theory of Relativity.“

—  Michael Moorcock English writer, editor, critic 1939
Fantastic Metropolis, Christmas Editorial (http://www.fantasticmetropolis.com/i/20011209/3/)

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