Science fiction frequently deals with civilizational inflection points. First encounters, for example, which introduce radical alterity, break from the past, and send society into chaos.
An anthologist of Chinese science fiction says that the genre has become so popular in part because China, in two generations, has dealt with incredible flux. "The kinds of technological and social changes that took societies in the West centuries to move through have sometimes been experienced by a mere two generations in China. The anxiety of careening out of balance, of being torn by parts moving too fast and too slow, is felt everywhere."