"bdl" wrote in message :

....
: As a computer engineer, I've often sketched out in my mind an add on to
: MSFS or otherwise that would change the flight models to recreate that
: "unseen hand of god". Something akin to random control inputs forcing
: the pilot to concentrate and disregard his physical cues of sitting
: straight and level.
:

Some sort of flashing light thing off in your peripheral vision, moving up and down slowly and out of phase with
simulated aircraft orientation. Maybe not a flashing light, just varying in intensity, maybe like one of those old
special effects you would see on the Twilight Zone, with the spiral line slowly turning....