There was a thread on /g/ about having a sex doll ass being hooked up with some electronics and have it plunge to you when pressing certain keys.
What if we make it thrust when doing only certain things/achieving certain objectives? And if it could work, in what actions would it work? Could we, for instance, force positive feedback loops for something as abstract as learning?
Last but certainly not least, could those feedback loops be feasible in the long run?