Yeah , that bugged me . They fixed it in SuMo . <| sep |> They identified 9 possible sources of experimental error there ' s no reason to think that they identified all possible . If it works we ' ll know it soon enough but it almost certainly doesn ' t . In the 1950 ' s to 70 ' s there were a number of MECHANICAL reactionless space drives such as the Phaser that worked on the principle that if you change momentum fast enough the quantum universe won ' t notice it . A number passed demonstration tests and were eventually shown to be crap . Perpetual motion machines have a bad history . <| sep |> I find nothing attractive about men . <| sep |> My exact thought process <| sep |> I ' ve sent them a few DMs on Twitter and now I ' m just waiting to hear back . Thanks for the help