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The reason I asked your age was because the shift from science fiction to fantasy had reached a point where it was noticeable enough that people (professionals in the field and hard-core fans) were discussing it by at least 1989, when my first book was published and I first came to be discussing such things with authors and editors, which means that the drift must have been going on for quite some time byt that point. SF was still selling better, but Fantasy was finally catching up to the point where SF writers were moaning that Fantasy writers were claiming too much of their shelf space.
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