I sort of was good at writing essays. I was never very good at mathematics and I was never very good at algebra. I loved science but I wasn't sure of it.
Science fiction is no more written for scientists that ghost stories are written for ghosts.
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Whenever you deal with science fiction you are setting up a world of rules. I think you work hard to establish the rules. And you also have to work even harder to maintain those rules and within that find excitement and unpredictability and all that stuff.
