Compare and Contrast

This is what is possible:

Robotic Arm Controlled by Brain Power

A woman paralyzed from the neck down for 13 years was able to move a prosthetic arm and hand just by thinking after only about 2 days of training, researchers reported.
After 13 weeks with the brain-machine interface, she could reach out and perform tasks 7-dimensionally with the prosthesis successfully 92% of the time.

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