Shoes worn out? Buy more at the mall. Car tires going bald?
Buy new ones. Getting bored of your first kid? Make another. Need a new arm and
hand? Buy one. No really--buy one. (Or
steal one if you're in South America, allegedly.)
It sounds morbid and perhaps outlandish, but no longer does
your missing limb (or his/her missing
limb; its CR4 policy to never assume ownership of missing limbs) need to be
a peg leg or a hand hook. What once was the science fiction of The Six Million Dollar Man,
RoboCop and WinoBot has become the
reality of the early 21st Century. Human hardships have become
advantages as the line of humanity and machinery has blurred.
How
close are we to improving the humans as a mechanical--not evolutionary--process?
The Advantaged
Though not covered in my extensive
look at the 2012 Summer Olympics, Oscar Pistorius still managed to raise
his international profile--and a few eyebrows. See, Pistorious has earned the
nickname 'Blade Runner' due to his artificial leg prostheses. Born with a
condition that results in no fibulas, Pistorius's legs were amputated at an early
age. He was an athletic teen despite his disability and didn't consider running
until a rugby injury prohibited him from more intense sport. His prostheses are
$35,000 carbon fiber Flex-Foot Cheetah running blades, with sole support
provided by Nike. They offer no heel so they are difficult to stand upon, but they do
offer superb forward speed. Josh McHugh, representing Wired, wrote "Once they get
going, Cheetahs are extremely hard to control."
One might suspect that Pistorius's prostheses limit him to
Paralympic events, yet after three years of competition against natural-limbed
runners Postorius was accused of cheating. The argument was that Pistorius's
mechanical legs did not fatigue and his exertion was considerably less. In
2007, the International Association of Athletics Federation ruled that such
contraptions were banned until tests proved they did not unfairly aid
Postorius. Hoping to return to international and able-bodied competition, Pistorius
sought the results of physiological testing. Two studies concluded that he
required 17 to 25 percent less energy than a normal sprinter, but that it was
impossible to conclude he had an advantage since his metal legs must
elastically deform at least eight percent. This means that each step results in
less forward motion than a stride completed with flesh and bone (human legs elastically deform only about 5 percent). After four years of testing and being relegated to the
2008 Paralympics, Pistorius was able to return to the 2012 Olympics.
In an ironic turn of events Pistorius himself has questioned
the advantage given to athletes running on newer, longer running blades. These
more advanced designs are under review--and while we don't need that conclusion,
we certainly can infer that running blades are a marked improvement on the
muscles, tendons and bone with which your author is currently outfitted.
The Remarkable
While several organizations around the world have been
developing brain-to-device interfaces, none has been more impressive than the
instance of Jan Scheuermann, or as she references herself 'guinea pig
extraordinaire'. Jan is afflicted with spinal cerebellar degeneration which
eliminates the connection between the brain and spinal cord--in her case for
unknown reasons. During a period of a
few years, Jan had lost all control of her arms and legs. After witnessing
other individuals move robotic arms with their minds, Jan contacted a research
team at the University of Pittsburgh.
While moving a robotic arm by brain control is amazing, it
is far from ground breaking. Such integrated biotechnology has existed for a
decade and more. The truly remarkable part is the functionality of the arm, which
Jan has dubbed Hector. Surgeons implant microelectrode arrays into the human's
motor cortex, a spot in the brain where arm and hand orders originate. After connection, hardware
interfacing and amplification the signals are fed to the machine which operates
under paraplegic command. Now in most instances, the patient must register and
measure each motion of the bionic arm. Essentially, if he or she wanted to pick
up a ball on a nearby table, his or her decoded thought commands would appear
as: arm extend; elbow flex; wrist
rotate; palm open; arm descend; palm close; elbow contract. Each movement
must be accounted for.
In Jan's unprecedented example
she simply has to focus on the object. She would see the ball, recognize her
bionic arm as reaching for it, and then retrieve it. Overall it is a much more
natural process than calculating each individual arm movement. In a recent
online chat Jan wrote, "The most awesome part is I now have the power to do
things that I haven't done for 10 years. It is equally awesome to know that I
am helping a whole generation of handicapped people down the road."
Hector is currently too big to
attach directly to Jan's arm, but can be attached to her wheelchair. The engineers behind it claim that it could easily be
made wireless and smaller. Individuals have been receiving integrated bionics in large numbers lately, but they lack the intuitive control of Hector.
The Eternal
Want to live forever? Even
though Chelsey
H recommends you move to Japan and pick peace
lilies, science has a vision where you can do that right in ol' U.S. of A. While
it surely will be controversial when the time comes, for now it is on the to-do
list of transhumanists. These individuals believe that bionic improvements
could lead to a day where people become more than human--where mechanical
improvements in intellect and brawn lead to super humans. We would essentially be real life terminators, and
innovation is getting there.
Respirocytes are microscopic,
manufactured red blood cells that can carry 236 times more oxygen than organic
RBCs. Using respirocytes a person could hold their breath for hours and never
experience muscle fatigue. Augmenting human brain power with computing software
and memory drives is another method of transhumanism under investigation.
Scoffing much? You may not realize it, but these optimized
versions of legs and arms are only the current era of bionic prostheses. Fully artificial hearts have been relied upon
since 1996--some of these hearts use a centrifugal pump which produces no pulse.
Working silicon retinas have been
produced, with hopes that in the near future some macular degeneration patients will receive mechanical implants. Recall that plastic surgery and orthodontistry are both forms of
perfecting human limitations that are already commonplace.
There is something though that will remain unimprovable
though; human emotion--perhaps best represented by art. The literature, films,
paintings, sculpture and architecture of the world can never be replicated by machine, and
as long as those capabilities remain truly human, then I'm happy to accept my system upgrade.
Resources
(Image credits: Collider; The 2012 Scenarion; Guardian; GizMag; International Hero; NPR)
Wikipedia - Mechanics of Oscar Pistorius's running blades; Bionics; Prosthesis; Respirocyte; Transhumanism
The Guardian - Mind over matter helps paralyzed woman...
reddit- I am Jan Scheuermann, Ask Me Anything
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