There is a video of DYI aimbot of using a camera and sending electrical impulses into his arm to make him do certain adjustments. It's a bit hit and miss but seems refineable.
and that's reasonable! but it's not a given. It's different from other kinds of cheating and some of its motivations are unusual when it comes to cheating restrictions (e.g., long-term health of players)
It's cat and mouse game.