week thirteen: how would I rate the control of artificial limbs by thought alone?

I have not seen this in action in person , but from the article it sounds like there is promise. The sensors that are picking up brain waves, as it continues to develop could have amazing accuracy . I saw my kids try and make a ping pong ball rise in a tube, with the same concept and I would say it worked 40% of the time I imagine with practice you may be able to raise that percentage. For people that are paralyzed this could mean so much freedom in their lives,I am sure if it were me, accuracy or not I would be willing to give it a go.