“The new coherent picture is not yet available. With all their immense empirical success, G(eneral)R(elativity) and Q(uantum)M(echanics) have left us with an understanding of the physical world which is unclear and badly fragmented. At the foundations of physics there is today confusion and incoherence.”Carlo Rovelli Quantum gravitySource: Quantum gravity (2004), p. 4
“General relativity has changed our understanding of space and time. ...The spacetime of general relativity ...is likely to be just a classical approximation that loses its meaning in the quantum theory, for the same reason the trajectory of a particle does.”Carlo Rovelli "Forget time" (Aug, 2008)
“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.”Carlo Rovelli "Forget time" (Aug, 2008)