“Paraplegic and some quadriplegic persons routinely walk and climb stairs through a combination of computer-controlled nerve stimulation and exoskeletal robotic devices.”

Ray KurzweilThought Leader

Inventor and futurist, author of The Age of Spiritual Machines

Powered exoskeletons existed in 2019 but were rare, costly and mostly confined to rehabilitation clinics; paraplegics overwhelmingly still used wheelchairs, and no combined nerve-stimulation/exoskeleton device was in routine daily use.