This has caused senseless debate on other forums which I find most amusing

Have a think about it before answering

A jetplane is standing on a runway that can move (some sort of conveyor belt). The plane moves in one direction, while the conveyer moves in the opposite direction. This conveyor has a control system that tracks the plane's speed and tunes the speed of the conveyor to be exactly the same (but in the opposite direction).

Can the plane take off?