“I have come to prefer something looser, a rough sort of definition which says simply that science fiction attempts to portray that which does not exist, a speculative reality, but endeavors to explore the consequences of such a speculation in a rigorous, systematic, and scientifically plausible way.”

— Robert Silverberg , book Thorns

Introduction (p. vi)
Thorns (1967)

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Robert Silverberg 88

American speculative fiction writer and editor 1935

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