Not to mention those Telomere ######ers in our DNA that degrade themselves. Eventually the tissue will break down and unless we can stop the telomere from self-degradation we will all eventually degrade to nothingness..
http://www.telomere.net/
The other question is that if we screw too much with the Telomere's will our genes still want to replicate themselves?? Where would the pressure be for them to pass themselves on. The Telomere's degradation are probably the reason for advanced sex drive when we are younger... our genes control us and want to pass themselves on... hence why our animal instincts often take the forefront.
Anyways.... it would take a long time for us to evolve that..
rant over.