If we really manage to crack the code on aging, How certain are we that it's merely something to be delayed? Apparent age is at least somewhat reversible via lifestyle factors e.g. diet/exercise/sobriety.
In fact that's Aubrey de Grey's approach: rather than trying to figure out all the complicated processes involved in causing the damage in the first place, so you can slow them down, just directly fix the damage afterwards. There's been quite a bit of research on this.
A question - why hasn't Aubrey de Grey been more successful in getting some tech billionaire to fund his research agenda? He seems charismatic and smart, and had some promising ideas.