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.
It's also theoretically possible to have a "warp" drive that produced thrust without propellent by altering the local spacetime metric.
Err not really. You have to violate a bunch of things widely held to be true for real mass configurations. Also you need negative mass, which doesn't exist even theoretically, oh and more mass energy than the entire universe. Finally it is totally causally disconnected from the rest of the universe.
Just because i write down math does not make it a valid prediction.
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