We know that bullets don’t violate the laws of physics, because we understand the physics involved. However, to an ancient archer, it looks like wizardry. The lifts up a magic wand and a loud noise ensues and somebody in the far distance drops dead. Magic.
If the EM drive works, it is not violating physics. It is obeying the laws of physics in ways we do not understand, but are beginning to.
I’ll tell you what makes sense—your use of the word “if”. “If” it works, then it means our understanding of physics is fundamentally flawed. So fundamentally, in fact, that we’ll have to start over again all the way back from the dark ages. I don’t think that’s the case. Like I said and will continue saying, I need to see it work for myself. No more of this “he said she said” stuff.
“If the EM drive works....”
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It DOES work...that has been established. NASA’s contribution was to determine that it also works in a vacuum. The current problem is developing an understanding of WHY IT WORKS. NOBODY (as far as I know) understands WHY it works. There are various conjectures as to why & how it works but none have yet been proven. This is the type of thing to which I hope Trump has NASA devote reallocated resources. The efforts would be far worthier than their current MASSIVE waste of resources spent trying to promote the Man-caused global warming hoax or trying to make Muslims feel better about themselves.