would someone please explain why you seem to think that the plane's wheels would be spinning at 200mph when it's only applying enough thrust to go 100mph. oh right, because the treadmill is spinning them.... think about what that would entail: if a plane is on an ordinary runway, the wheels go however fast the plane goes. why is that different on the treadmill? the plane is NOT suspended above the surface. the treadmill is NOT spinning the wheels. the entire airplane is being carried with the treadmill surface, not just the wheels. as much as you would like to think the wheels are seperate from the rest of the airplane, they're not. in fact, they have the entire weight of the airplane sitting on them. the treadmill cannot spin them while the plane sits there. something would have to be holding the weight of the plane off the wheels, and we know this doesn't happen until lift is generated. the plane acts just like it would on a non-moving runway, however, in this case the whole runway is moving backward relative to the air around it - the important part - and so just like a runner on a treadmill, when the plane is going the same speed as the treadmill, it is stationary to the surroundings, even though its wheels are moving over the surface at an equal speed.
if you read this post and just think about it for a minute, you may begin to realize the flawed physics in your theory.