1. studies consistently are showing that this seems to produce thrust without expelling any matter
2. we know that can't be possible
I think most people are excited about this not because they think we just proved 2 to be wrong, but instead because we know 2 must be true, so what the hell is going on with 1???
Most likely we will find out that we are NOT violating the known laws of the universe, but we're "not violating" them in a very interesting way.
As someone who dropped out of Cal II, the first few paragraphs of this book gave me more understanding than I ever had in college... Either I was very lazy, or my teachers couldn't express these simple ideas clearly, or both.