The name comes from Zeno's arrow paradox, which states that because an arrow in flight is not seen to move during any single instant, it cannot possibly be moving at all.[note 1] The first rigorous and general derivation of the quantum Zeno effect was presented in 1974 by Degasperis et al.,[5] although it had previously been described by Alan Turing.[6] The comparison with Zeno's paradox is due to a 1977 paper by George Sudarshan and Baidyanath Misra.[1]