800 Year Lifespan? Sign me up!

Not quite as earth-shattering as the comments, but . . . very kool indeed . . . Geneticists Discover a Way to Extend Lifespans to 800 Years . . . the eight hundred years is only if the mutation in humans would be analogous to that in yeast which is still to be seen. Now, are they going to be able to simply repress the expression of the genes or is the genetherapy only good for newborns with in vitro genetic modifications?