Keep in mind this device hasn ' t been tested once , but at this point thousands of times by multiple people and agencies , including NASA itself . They all determined it to be genuine as far as they can tell , though there may be some kind of outside or internal interference that is causing the thrust . So what will really confirm it is when it is tested in space , then all variables will be accounted for . It if moves in space , it works , and that would be huge . At this point , I think it will work . I don ' t think the smart money is at all in the camp that it won ' t work , given how vigorously it has already been tested . It ' s certainly possible hundreds of geniuses missed something obvious , but at this point I doubt it .