biotechnology

1) Biotechnology
2) This technology will enable for the people that are disabled to do things that are impossible to do it without those technology
3) The mechanic hand is so much functioned that every one wants it that they just chop off their hand. The finish of the question will be in the question 4.
4)It would mess up the evolvement of human beings. The parent's that don't have a hand might also pass the DNA to their children. When the child is born, they can't have a mechanic hand already installed, so they need to instal for their children again. Now what if the Dark Age happens again, nothing new invented and nobody able to pay and the doctors will slowly forget how to do this surgery. In the results, all the children that are born wouldn't have a hand and the Biotechnology have reborn. And the time would take longer because the human won't have an arm anymore.