Crappy article, probably not HN worthy.<p>Besides, aging aka anti-cancer mechanisms, are often very much designed to work that way. Working on those mechanisms could increase longevity, however it will not cure aging.<p>We only have two copies of our DNA, and if you live long enough and cure every cancer, you could* still* end up with a left arm that genetically drifts from your right leg. And they both drift from your immune system.<p>Deinococcus radiodurans has 4 copies of its genome, but it's only a single cell. We'd need something like that but with a central place that decides what's you and what isn't <i>you</i>.<p>Think of it as RAID for your genome somewhere deep inside your chest. But we are nowhere near anything like that. So I wish the best of luck to Ray Kurtzweil and the rest of us, but I am not at all optimistic about the singularity.