The human body has many design flaws - it gets sick, it heals slowly, it isn't always responsive.
Shows like Six Million Dollar Man and Robocop, where human parts have been replaced with technology, once only real in script writers heads are now becoming reality.
German Prosthetic company Otto Bock is already making bionic hands that pinch and grasp in response to brain signals - the hand has recently been fitted on an Austrian who chose to have elective amputation after losing the use of his own hand to have the new hand fitted.
Although it is very doubtful he will become a super hero, chasing villains with his bionic piece of kit, the hand is working well and helping him with his day to life.
How long will it be until an exo-skeleton, like Wolverine, replaces bones completely? And when will Stem cell research help our organs heal and cure disease?
Of course, there are the usual concerns from the general public - but is it just jealousy? Do we all harbour a secret desire to have awesome powers and fight crime?