The problem is, according to everybody who has tested it, the EM Drive does produce thrust.
Nope. Just NO and no. The abstract of this paper. the first one properly published, and disappointing editing work as well. Shows ZERO force outside systematic errors. The last 2 "experiments" that were done very poorly, also showed zero force outside systematic errors.
Nothing has been shown. Nothing at all. This is also from the guy who claims he had a antigravity device. He is not too keen on theory at all, and is very good and finding what he want to find when experimenting.