if you think our self-healing capacity only increases our lifespan by 30% you are far off...
Are you disagreeing with the analogy by accident or on purpose? All metaphors and analogies are imperfect. They were refuting the idea that self healing == immortal. Your nitpick over the 30% number doesn’t really diminish that. Or if you’re trying to make a joke, then could you state your support/opposition clearly and independently from your joke please?
How much would our life increase if we got 30% more self healing, though?
We would live probably 30% shorter. More self healing, more replication, more offset in DNA means you reach eldery quicker. Every replication event contain tiny chance of mutation as well.
Cancer comes from mistakes in the self healing process and erosion of the DNA chain. I think it's implicit that 30% more self healing means "30% more self healing correctly" and not "30% more healing for the same amount of injuries". I think the former is also analogous to the road example.
our cancers may get 30% more healing too. so i would say not all that much. i would rather be 30% less accident prone, if that makes sense.
Cancer comes from mistakes in the self healing process and erosion of the DNA chain. I think it's implicit that 30% more self healing means "30% more self healing correctly" and not "30% more healing for the same amount of injuries". I think the former is also analogous to the road example.
All that said, I, too, would like to reduce my accidents by 30%. Notably around my weak ankles in soccer!