There are lots of things that are considered perfectly acceptable ... provided they don't work. And of course everyone knows they really don't, which is why they're acceptable....
A scientist creates an invention that influences dice and roulette wheels. When it works, he's arrested for cheating and put on trial.
Randall Garrett (December 16, 1927 - December 31, 1987) was an American science fiction and fantasy author. He was a prolific contributor to Astounding and other science fiction magazines of the 1950s and 1960s. He instructed Robert Silverberg in the techniques of selling large quantities of action-adventure science fiction, and collaborated with him on two novels about Earth bringing civilization to an alien planet.
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