Quote Originally Posted by absoludely
can't see the pic cuz it's being blocked by websense but i understand what you're saying and even though i don't think i'm expressing it correctly, what i'm saying is what you're saying

and to hopefully prove that i do fully comprehend, here's a simple followup question that you can easily answer: would it be possible to have/build a treadmill that will move/accelerate in a manner in which it will actually keep the plane in the same spot and grounded?
As long as the wheels are free rolling (neutral), no, not really. There is a small amount of friction in the wheel bearings. If the plane's thrust matches that friction, exactly, then the plane will stay stationary. Once the plane's thrust passes that friction amount, the plane will move forward.