Future possibilities will often resemble today's fiction, just as robots, spaceships, and computers resemble yesterday's fiction. How could it be otherwise? Dramatic new technologies sound like science fiction because science fiction authors, despite their frequent fantasies, aren't blind and have a professional interest in the area.
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This may seem too good to be true, but nature (as usual) has not set her limits based on human feelings.
K. Eric Drexler, Engines of Creation Chapter 6
When I read the first sentence quoted above, I assumed it was intended ironically.
Robots, spaceships and computers resemble yesterday's fiction? Hardly, except in so far as their fictional counterparts resemble the robots, spaceships and computers already in existence when the fiction was written. (And, to a lesser extent, in so far as people making new robots, spaceships and computers are inspired by the science fiction they've read.)
Y'all know the rules: