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 on science
Between Planets (1951), Chapter 2, “Mene, Mene, Tekel, Upharsin” (p. 23)
Quote and source from Wikiquote, CC BY-SA 4.0
