And it works. Looking at the test firings and rockets, the apex of the nozzles is near the center of the rocket. That means that whatever force exerted by the nozzle is minimal and must be transmitted to the top of the rocket for an effect.

And the information needed to calculate the amount of the force has to come from minute changes detectable at the top, transmitted to the computer, calculated, sent to the nozzles and have those move all very, very rapidly.

I, frankly, am in total awe, watching them go up, lean, rotate, stop rotation, lean some more, keep going up all from forces at the bottom and almost on one point. Because some of those are long rockets, and some of them have shrouds with a bigger diameter than the base.

And that, in case anyone wondered, is why I'm not a rocket scientist.