OK, massive brains...what do you think abou this? I got it from David Pogue--and folks at the Straight Dope discussion board are also a bit stumped. I'm thinking that the plane won't be able to actually move relative to the ground, because as the jet engines try to make the plane move forward, the conveyor belt moves under the wheels, and it doesn't go anywhere. So no airflow over the wings, so no takeoff. But some people seem to be saying that because the jets push on the air, not on the belt (or the ground), it would accelerate forward anyway, and take off, no matter what the belt does. That doesn't make sense to me. What do you think?