Don_DickleDon't know if the right place so please forgive. How far have we come in robotics/artrficial limbs so a person missing an arm or something that the normal human cannot lift or push?
If I remember correctly, I think another major hurdle is the feedback loop part (prosthetic inputs to neural connections). We have some relative understanding of having machines to act in how we intend, but without that loop, still leads to a lot of errors. I don’t mean full simulation of the sensorium to mimic having your arm back, but the minimal amount necessary for fluid movement without conscious visual monitoring.