I started the movement of SF in America in 1908 through my first magazine, 'MODERN ELECTRICS.' At that time it was an experiment. Science fiction authors were scarce. There were not a dozen worth mentioning in the entire world
Science-fiction ... can be defined as: Imaginative extrapolation of true natural phenomena, existing now, or likely to exist in the future.
Let it be understood, in the first place, that a science fiction story must be an exposition of a scientific theme and it must be also a story.