First off, I'm new here and I'm not a physics major, but I do find this stuff very interesting. One thing that I constantly remember is that sometimes even us 'amatuers' can open up new insights that the 'veterans' may never have thought of and thus this is why I wanted to post a thought that came to me.
From the examples of Fred, Bob, and Emily, I was intrigued at how well explained it was about Bob demonstrating levitation to Fred and then Emily demonstrating it also to Bob which got me to thinking of simple facts about our own world. We know that we can reproduce levitation in our own world using the properties of metals and magnets. This being the case, I'm wondering if these levitation processes actually occur by manipulating tetraspace. If this is the case, than it would help to explain what actually is happening in the process of repelling magnets and thus propel someone to grasp the concept and be able to possibly produce a way for us to make levitation a way of life (i.e. transportation, production, etc..)
Any thoughts on this theory ?