I would say that scientific advances would definitely play into the argument. Suppose that modern investments into "reversing aging" pay off to the tune of addi

I would say that scientific advances would definitely play into the argument. Suppose that modern investments into "reversing aging" pay off to the tune of adding twenty years to the average healthy lifespan, regardless of how many years it takes until we get there (i.e. 20 more years of healthy life, on average). A like-minded author in 21XX would almost certainly say he/she wishes to die at 95.