I thought it is a bit odd that people have not created a thread like this (at least with my horribad searching skills), so I created one. If you ever lose a part of your body in the future do you want to regrow that part of your body or are you going to use a mechanical part instead, like Adam Jensen from the upcoming Deus Ex: Human Revolution? Given the rate of advancement in both fields, I think its plausible that in 20 years time, we will be given the option of having either (but will cost you an arm and a leg, no pun intended). I will take bioregeneration over mechanical hands, less hassle. Edit: I noticed that people are just voting and not discussing, if possible, can we do a bit of discussion too?