[In the Loop Quantum Gravity picture] these “quanta of gravity” do not live immersed in a spacetime. They are space. The idea of space as the inert “container” of the physical world has disappeared.
Cambridge University Press quotes
View All Authors View SourcesQuantum gravity is therefore the study of the structure of spacetime at the quantum scale.
— Carlo Rovelli (2010)
Approaches to Quantum Gravity: Toward a New Understanding of Space, Time and Matter
p. 5
p. 5
I think it is fair to say that there isn’t even a single complete and consistent candidate for a quantum theory of gravity.
— Carlo Rovelli (2010)
Approaches to Quantum Gravity: Toward a New Understanding of Space, Time and Matter
p. 8
p. 8
Fundamental physics is today in a peculiar phase of deep conceptual confusion.
— Carlo Rovelli (2009)
Approaches to Quantum Gravity: Toward a New Understanding of Space, Time and Matter
p. 4
p. 4
The key difficulty of quantum gravity may therefore be to find a way to understand the physical world in the absence of the familiar stage of space and time.
— Carlo Rovelli (2009)
Approaches to Quantum Gravity: Toward a New Understanding of Space, Time and Matter
p. 7
p. 7
The world may not be the way it appears in the tiny garden of our daily experience.
— Carlo Rovelli (2009)
Approaches to Quantum Gravity: Toward a New Understanding of Space, Time and Matter
p. 4
p. 4
The search for a quantum theory of gravity raises once more old questions such as: What is space? What is time? What is the meaning of “moving”?
— Carlo Rovelli (2010)
Approaches to Quantum Gravity: Toward a New Understanding of Space, Time and Matter
p. 8
p. 8
There are no facts, only interpretations.
— Friedrich Nietzsche (1887)
Writings from the Late Notebooks
p. 139
p. 139
[T[he quantum theoretic description of physical reality is exquisitely strange and profoundly mysterious.
— David Mermin (1990)
Boojums All the Way Through: Communicating Science in a Prosaic Age
p. 111
p. 111