“Everything is theoretically impossible, until it’s done. One could write a history of science in reverse by assembling the solemn pronouncements of highest authority about what could not be done and could never happen.”

— Robert A. Heinlein , book Between Planets

Source: Between Planets (1951), Chapter 2, “Mene, Mene, Tekel, Upharsin” (p. 23)

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Robert A. Heinlein 557

American science fiction author 1907–1988

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