Could we soon 'upgrade' our bodies? Extreme bionics will create modular superhumans

MIT's Center for Extreme Bionics it trying to eliminate human disabilities and push us beyond the limits of our own bodies. From peg legs through hook hands and iron fists, for millennia prosthetics were a very poor substitute for our basic biology. No-one would have voluntarily chosen a prosthetic. But, over the past few decades, prosthetics have been improving in functionality. External appendages became internal implants such as artificial hips and knees.

http://www.wired.co.uk