PHLEBOTOMY FOR WIL WHEATON: Not to be confused with the collecting of blood samples for testing, phlebotinum is a deus ex machina device that demonstrates that "any sufficiently advanced technology is indistinguishable from magic". Who first proposed this rule, his third?
Arthur C. Clarke (edited at 12:40 pm, April 22, 2016 (PDT))
Original Answer: Robert C. Clarke