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I argue that the best strategy for understanding quantum gravity is to build a picture of the physical world where the notion of time plays no role a… - Carlo Rovelli
" "I argue that the best strategy for understanding quantum gravity is to build a picture of the physical world where the notion of time plays no role at all.
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About Carlo Rovelli
Carlo Rovelli (born May 3, 1956) is an Italian physicist and cosmologist working in the field of quantum gravity. In 1988, Carlo Rovelli, Lee Smolin and Abhay Ashtekar introduced a theory of quantum gravity denoted loop quantum gravity.
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Additional quotes by Carlo Rovelli
What is then the physical content of a solution of Einstein's equations..? ...[C]onsider what is actually measured in general relativistic experiments. ...Consider a clock at rest on ...Earth and a clock on a satellite in orbit around the Earth. ...Call T<sub>1</sub> and T<sub>2</sub> the readings... Each measures the along its own worldline, in the Earth gravitational field. ...the theory predicts the value of T<sub>2</sub> that will be associated to each value of T<sub>1</sub>. Or vice versa.
What makes the difference is the mass. ...[T]he earth is a big mass and it slows down time. If you go to a bigger mass, like Jupiter, it's stronger. If you go near a big star it's stronger. If you're near a black hole... it's even more strong, so strong that if you go very near... time essentially stops down. It goes very, very, very slowly.
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