“The world described by modern physics has already moved far beyond our common sense and intuition, even beyond our imagination, and this is, of course, the richest resource for science fiction. I’ve tried to turn the magical world as demonstrated by modern physics into vivid stories. Most of my stories were based on and imagined along the lines of physics and cosmology.”
On how physics fits into his works in “In the Author’s Universe: Interview with Sci-Fi Author Cixin Liu” https://vocal.media/futurism/in-the-authors-universe-interview-with-sci-fi-author-cixin-liu in Vocal (2016)
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Liu Cixin 4
Chinese science fiction writer 1963Related quotes

L.A. Cooper and R.N. Shepard (1984). "Turning something over in the mind." Scientific American 251(6), 106-114; p. 114.
Context: In spite of some unresolved issues, the close match we have found between mental rotation and their counterparts in the physical world leads inevitably to speculations about the functions and origin of human spatial imagination. It may not be premature to propose that spatial imagination has evolved as a reflection of the physics and geometry of the external world. The rules that govern structures and motions in the physical world may, over evolutionary history, have been incorporated into human perceptual machinery, giving rise to demonstrable correspondences between mental imagery and its physical analogues.

Statement of 1963, as quoted in Schrodinger : Life and Thought (1992) by Walter J. Moore, p. 1
Context: I am now convinced that theoretical physics is actually philosophy. It has revolutionized fundamental concepts, e. g., about space and time (relativity), about causality (quantum theory), and about substance and matter (atomistics). It has taught us new methods of thinking (complementarity), which are applicable far beyond physics.
A Voice from the Attic (1960)