But is it feasible to live forever, or much longer - probably no, because even as your body is getting older, science seems to reckon that brains slow down at the retirement era of life - the reasons for this vary, but what happens in some cases when they start to "go backwards" for example a person ends up with Alzheimer's? so where is the point? and yes I agree it a step to far, let nature take it course none of us should live beyond our natural life as far as I am concerned yes use a little common sense and help us live longer not not to this degree.