I have to disagree with a sentence.
Quote:
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SF is an exploration of possibilities, and about feeling a sense of awe and wonder about the universe beyond our blue planet.
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There is a large amount of excellent SF that never leaves the planet Earth. My personal definition of SF is "Let's pretend that (something) was invented/discovered. How would that affect (something else)?"
For me, one of the best classic What If? authors is Alfred Bester, especially "The Demolished Man", which asks "What if some people could read your mind? What if the police hired these people?"
I'll just be a casual follower at this point; I don't feel like delving back into Asimov right now.