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  • Martin Bell thinks this is interesting:

). The preeminent standout among science fiction writers is Poul Anderson, to whom this book is dedicated, for his essays “How to Build a Planet” and “On Thud and Blunder.” I read both when I was a teen; this book would not have been written but for his example. Isaac Asimov and Arthur C. Clarke both wrote many essays on science. Larry Niven has written several essays on the scientific aspects of teleportation, time travel, and other science fiction themes. Almost from the beginning of the modern era, scientists have written essays on science fictiony ideas, and I reference them where appropriate. This book is mainly synthetic rather than original, although I think there are a few new things in it, such as the discussion of candlelight in t

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