Cyborgs
Cyborgs
20 YEARS AWAY – In many ways, we are already cyborgs: contact lenses fix short sightedness; cochlear implants restore hearing; prosthetic limbs help athletes to match or even outstrip their natural-bodied rivals; and exoskeletons allow paraplegic patients to walk again.
The next challenge looks to be controlling artificial limbs and senses as instinctively as we do our bodies.
Brain-computer interfaces are the latest focus of Facebook, Elon Musk and US defence research funders DARPA, among others. Other laboratory studies have already allowed patients to control prosthetic limbs via electrodes implanted in the brain. University of Pittsburgh scientists even connected a paralysed man’s sensory cortex to a robotic hand, allowing him to feel what the hand touched. Combining the strength, lightness and durability of today’s prosthetic materials with similar brain control methods would take us into superhuman, bionic territory.
Greenberg. “Today’s Argus II vision is like a blurry black-and-white television.” Orion should be an improvement, but “colour and higher resolution are in the future.”
While Greenberg is realistic about the current limitations, he’s optimistic that we will eventually be able to restore sight to better-than-normal levels. “There is no physical reason why we can’t create a high-resolution interface someday, but the engineering challenges are great,” he says.
“I would guess we are at least 20 years away from superhuman vision.”

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