We're not sure what to make of Yifei Chai.
The mind behind the Pretender Motion project, Chai was inspired by "witchcraft and possession" to build a system that lets you 'take control' of someone else's arm with a series of electrodes. It's even able to animate dead flesh - which is messed up on a whole bunch of levels, foremost of which is that Chai has actually tested it on pig flesh.
Pretender Motion sees the 'controller' wear a glove that reads the electro signals of the muscles in your arm. This is linked to a corresponding sleeve on the 'subject', whose muscles receive identical electronic signals.
As a result, the controller can move the subject's arm, and they can't do a thing to stop it.
At present, the system only works on hand actions and arm movements - but if Chai or others fine-tune this tech, we can imagine a future in which entire suits could have people walking around under the guidance of a remote controller.
The future is a scary place.