::::::::You're confusing the EmDrive with the Cannae drive, I think.  The EmDrive guy, I thought, was based entirely on mathematical errors; the Cannae group, on the other hand, at least had the sense to realize they needed to make up some nonsense about virtual particles for a momentum conservation fig leaf.  They're both bullshit, of course, but the Cannae group at least is using a better grade of bullshit.